diff options
38 files changed, 20 insertions, 6323 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 2d7f56a98e0..9a50d7dd2a0 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -499,23 +499,6 @@ config ARCH_PROC_KCORE_TEXT def_bool y depends on PROC_KCORE -config IA32_SUPPORT - bool "Support for Linux/x86 binaries" - help - IA-64 processors can execute IA-32 (X86) instructions. By - saying Y here, the kernel will include IA-32 system call - emulation support which makes it possible to transparently - run IA-32 Linux binaries on an IA-64 Linux system. - If in doubt, say Y. - -config COMPAT - bool - depends on IA32_SUPPORT - default y - -config COMPAT_FOR_U64_ALIGNMENT - def_bool COMPAT - config IA64_MCA_RECOVERY tristate "MCA recovery from errors other than TLB." diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 475e2725fbd..8ae0d2604ce 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -46,7 +46,6 @@ head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o libs-y += arch/ia64/lib/ core-y += arch/ia64/kernel/ arch/ia64/mm/ -core-$(CONFIG_IA32_SUPPORT) += arch/ia64/ia32/ core-$(CONFIG_IA64_DIG) += arch/ia64/dig/ core-$(CONFIG_IA64_DIG_VTD) += arch/ia64/dig/ core-$(CONFIG_IA64_GENERIC) += arch/ia64/dig/ diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig index ace41096b47..312b12094a1 100644 --- a/arch/ia64/configs/bigsur_defconfig +++ b/arch/ia64/configs/bigsur_defconfig @@ -131,8 +131,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y # CONFIG_VIRTUAL_MEM_MAP is not set -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y # CONFIG_IA64_MCA_RECOVERY is not set CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig index 75645495c2d..6a4cc506fb5 100644 --- a/arch/ia64/configs/generic_defconfig +++ b/arch/ia64/configs/generic_defconfig @@ -205,8 +205,6 @@ CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y CONFIG_HAVE_ARCH_NODEDATA_EXTENSION=y -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y CONFIG_COMPAT_FOR_U64_ALIGNMENT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig index e86fbd39c79..2dc185b0f9a 100644 --- a/arch/ia64/configs/gensparse_defconfig +++ b/arch/ia64/configs/gensparse_defconfig @@ -139,8 +139,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y CONFIG_NUMA=y CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/sim_defconfig b/arch/ia64/configs/sim_defconfig index 546a772f438..21a23cdfd41 100644 --- a/arch/ia64/configs/sim_defconfig +++ b/arch/ia64/configs/sim_defconfig @@ -130,8 +130,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y # CONFIG_VIRTUAL_MEM_MAP is not set -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y # CONFIG_IA64_MCA_RECOVERY is not set # CONFIG_PERFMON is not set CONFIG_IA64_PALINFO=m diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig index c522edf23c6..c5a5ea9d54a 100644 --- a/arch/ia64/configs/tiger_defconfig +++ b/arch/ia64/configs/tiger_defconfig @@ -154,7 +154,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y -# CONFIG_IA32_SUPPORT is not set CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/xen_domu_defconfig b/arch/ia64/configs/xen_domu_defconfig index 0bb0714dc19..c67eafc4bb3 100644 --- a/arch/ia64/configs/xen_domu_defconfig +++ b/arch/ia64/configs/xen_domu_defconfig @@ -200,8 +200,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y -# CONFIG_IA32_SUPPORT is not set -# CONFIG_COMPAT_FOR_U64_ALIGNMENT is not set CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig index 514f0635daf..3cec65b534c 100644 --- a/arch/ia64/configs/zx1_defconfig +++ b/arch/ia64/configs/zx1_defconfig @@ -150,8 +150,6 @@ CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/ia32/Makefile b/arch/ia64/ia32/Makefile deleted file mode 100644 index baad8c7699c..00000000000 --- a/arch/ia64/ia32/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# -# Makefile for the ia32 kernel emulation subsystem. -# - -obj-y := ia32_entry.o sys_ia32.o ia32_signal.o \ - ia32_support.o ia32_traps.o binfmt_elf32.o ia32_ldt.o -obj-$(CONFIG_AUDIT) += audit.o - -# Don't let GCC uses f16-f31 so that save_ia32_fpstate_live() and -# restore_ia32_fpstate_live() can be sure the live register contain user-level state. -CFLAGS_ia32_signal.o += -mfixed-range=f16-f31 diff --git a/arch/ia64/ia32/audit.c b/arch/ia64/ia32/audit.c deleted file mode 100644 index 5c93ddd1e42..00000000000 --- a/arch/ia64/ia32/audit.c +++ /dev/null @@ -1,42 +0,0 @@ -#include "../../x86/include/asm/unistd_32.h" - -unsigned ia32_dir_class[] = { -#include <asm-generic/audit_dir_write.h> -~0U -}; - -unsigned ia32_chattr_class[] = { -#include <asm-generic/audit_change_attr.h> -~0U -}; - -unsigned ia32_write_class[] = { -#include <asm-generic/audit_write.h> -~0U -}; - -unsigned ia32_read_class[] = { -#include <asm-generic/audit_read.h> -~0U -}; - -unsigned ia32_signal_class[] = { -#include <asm-generic/audit_signal.h> -~0U -}; - -int ia32_classify_syscall(unsigned syscall) -{ - switch(syscall) { - case __NR_open: - return 2; - case __NR_openat: - return 3; - case __NR_socketcall: - return 4; - case __NR_execve: - return 5; - default: - return 1; - } -} diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c deleted file mode 100644 index c69552bf893..00000000000 --- a/arch/ia64/ia32/binfmt_elf32.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * IA-32 ELF support. - * - * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> - * Copyright (C) 2001 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * - * 06/16/00 A. Mallick initialize csd/ssd/tssd/cflg for ia32_load_state - * 04/13/01 D. Mosberger dropped saving tssd in ar.k1---it's not needed - * 09/14/01 D. Mosberger fixed memory management for gdt/tss page - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/security.h> - -#include <asm/param.h> -#include <asm/signal.h> - -#include "ia32priv.h" -#include "elfcore32.h" - -/* Override some function names */ -#undef start_thread -#define start_thread ia32_start_thread -#define elf_format elf32_format -#define init_elf_binfmt init_elf32_binfmt -#define exit_elf_binfmt exit_elf32_binfmt - -#undef CLOCKS_PER_SEC -#define CLOCKS_PER_SEC IA32_CLOCKS_PER_SEC - -extern void ia64_elf32_init (struct pt_regs *regs); - -static void elf32_set_personality (void); - -static unsigned long __attribute ((unused)) -randomize_stack_top(unsigned long stack_top); - -#define setup_arg_pages(bprm,tos,exec) ia32_setup_arg_pages(bprm,exec) -#define elf_map elf32_map - -#undef SET_PERSONALITY -#define SET_PERSONALITY(ex) elf32_set_personality() - -#define elf_read_implies_exec(ex, have_pt_gnu_stack) (!(have_pt_gnu_stack)) - -/* Ugly but avoids duplication */ -#include "../../../fs/binfmt_elf.c" - -extern struct page *ia32_shared_page[]; -extern unsigned long *ia32_gdt; -extern struct page *ia32_gate_page; - -int -ia32_install_shared_page (struct vm_area_struct *vma, struct vm_fault *vmf) -{ - vmf->page = ia32_shared_page[smp_processor_id()]; - get_page(vmf->page); - return 0; -} - -int -ia32_install_gate_page (struct vm_area_struct *vma, struct vm_fault *vmf) -{ - vmf->page = ia32_gate_page; - get_page(vmf->page); - return 0; -} - - -static const struct vm_operations_struct ia32_shared_page_vm_ops = { - .fault = ia32_install_shared_page -}; - -static const struct vm_operations_struct ia32_gate_page_vm_ops = { - .fault = ia32_install_gate_page -}; - -void -ia64_elf32_init (struct pt_regs *regs) -{ - struct vm_area_struct *vma; - - /* - * Map GDT below 4GB, where the processor can find it. We need to map - * it with privilege level 3 because the IVE uses non-privileged accesses to these - * tables. IA-32 segmentation is used to protect against IA-32 accesses to them. - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (vma) { - vma->vm_mm = current->mm; - vma->vm_start = IA32_GDT_OFFSET; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_page_prot = PAGE_SHARED; - vma->vm_flags = VM_READ|VM_MAYREAD|VM_RESERVED; - vma->vm_ops = &ia32_shared_page_vm_ops; - down_write(¤t->mm->mmap_sem); - { - if (insert_vm_struct(current->mm, vma)) { - kmem_cache_free(vm_area_cachep, vma); - up_write(¤t->mm->mmap_sem); - BUG(); - } - } - up_write(¤t->mm->mmap_sem); - } - - /* - * When user stack is not executable, push sigreturn code to stack makes - * segmentation fault raised when returning to kernel. So now sigreturn - * code is locked in specific gate page, which is pointed by pretcode - * when setup_frame_ia32 - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (vma) { - vma->vm_mm = current->mm; - vma->vm_start = IA32_GATE_OFFSET; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_page_prot = PAGE_COPY_EXEC; - vma->vm_flags = VM_READ | VM_MAYREAD | VM_EXEC - | VM_MAYEXEC | VM_RESERVED; - vma->vm_ops = &ia32_gate_page_vm_ops; - down_write(¤t->mm->mmap_sem); - { - if (insert_vm_struct(current->mm, vma)) { - kmem_cache_free(vm_area_cachep, vma); - up_write(¤t->mm->mmap_sem); - BUG(); - } - } - up_write(¤t->mm->mmap_sem); - } - - /* - * Install LDT as anonymous memory. This gives us all-zero segment descriptors - * until a task modifies them via modify_ldt(). - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (vma) { - vma->vm_mm = current->mm; - vma->vm_start = IA32_LDT_OFFSET; - vma->vm_end = vma->vm_start + PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE); - vma->vm_page_prot = PAGE_SHARED; - vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE; - down_write(¤t->mm->mmap_sem); - { - if (insert_vm_struct(current->mm, vma)) { - kmem_cache_free(vm_area_cachep, vma); - up_write(¤t->mm->mmap_sem); - BUG(); - } - } - up_write(¤t->mm->mmap_sem); - } - - ia64_psr(regs)->ac = 0; /* turn off alignment checking */ - regs->loadrs = 0; - /* - * According to the ABI %edx points to an `atexit' handler. Since we don't have - * one we'll set it to 0 and initialize all the other registers just to make - * things more deterministic, ala the i386 implementation. - */ - regs->r8 = 0; /* %eax */ - regs->r11 = 0; /* %ebx */ - regs->r9 = 0; /* %ecx */ - regs->r10 = 0; /* %edx */ - regs->r13 = 0; /* %ebp */ - regs->r14 = 0; /* %esi */ - regs->r15 = 0; /* %edi */ - - current->thread.eflag = IA32_EFLAG; - current->thread.fsr = IA32_FSR_DEFAULT; - current->thread.fcr = IA32_FCR_DEFAULT; - current->thread.fir = 0; - current->thread.fdr = 0; - - /* - * Setup GDTD. Note: GDTD is the descrambled version of the pseudo-descriptor - * format defined by Figure 3-11 "Pseudo-Descriptor Format" in the IA-32 - * architecture manual. Also note that the only fields that are not ignored are - * `base', `limit', 'G', `P' (must be 1) and `S' (must be 0). - */ - regs->r31 = IA32_SEG_UNSCRAMBLE(IA32_SEG_DESCRIPTOR(IA32_GDT_OFFSET, IA32_PAGE_SIZE - 1, - 0, 0, 0, 1, 0, 0, 0)); - /* Setup the segment selectors */ - regs->r16 = (__USER_DS << 16) | __USER_DS; /* ES == DS, GS, FS are zero */ - regs->r17 = (__USER_DS << 16) | __USER_CS; /* SS, CS; ia32_load_state() sets TSS and LDT */ - - ia32_load_segment_descriptors(current); - ia32_load_state(current); -} - -/* - * Undo the override of setup_arg_pages() without this ia32_setup_arg_pages() - * will suffer infinite self recursion. - */ -#undef setup_arg_pages - -int -ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack) -{ - int ret; - - ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack); - if (!ret) { - /* - * Can't do it in ia64_elf32_init(). Needs to be done before - * calls to elf32_map() - */ - current->thread.ppl = ia32_init_pp_list(); - } - - return ret; -} - -static void -elf32_set_personality (void) -{ - set_personality(PER_LINUX32); - current->thread.map_base = IA32_PAGE_OFFSET/3; -} - -static unsigned long -elf32_map(struct file *filep, unsigned long addr, struct elf_phdr *eppnt, - int prot, int type, unsigned long unused) -{ - unsigned long pgoff = (eppnt->p_vaddr) & ~IA32_PAGE_MASK; - - return ia32_do_mmap(filep, (addr & IA32_PAGE_MASK), eppnt->p_filesz + pgoff, prot, type, - eppnt->p_offset - pgoff); -} - -#define cpu_uses_ia32el() (local_cpu_data->family > 0x1f) - -static int __init check_elf32_binfmt(void) -{ - if (cpu_uses_ia32el()) { - printk("Please use IA-32 EL for executing IA-32 binaries\n"); - unregister_binfmt(&elf_format); - } - return 0; -} - -module_init(check_elf32_binfmt) diff --git a/arch/ia64/ia32/elfcore32.h b/arch/ia64/ia32/elfcore32.h deleted file mode 100644 index 65772574261..00000000000 --- a/arch/ia64/ia32/elfcore32.h +++ /dev/null @@ -1,148 +0,0 @@ -/* - * IA-32 ELF core dump support. - * - * Copyright (C) 2003 Arun Sharma <arun.sharma@intel.com> - * - * Derived from the x86_64 version - */ -#ifndef _ELFCORE32_H_ -#define _ELFCORE32_H_ - -#include <asm/intrinsics.h> -#include <asm/uaccess.h> - -/* Override elfcore.h */ -#define _LINUX_ELFCORE_H 1 -typedef unsigned int elf_greg_t; - -#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct ia32_user_i387_struct elf_fpregset_t; -typedef struct ia32_user_fxsr_struct elf_fpxregset_t; - -struct elf_siginfo -{ - int si_signo; /* signal number */ - int si_code; /* extra code */ - int si_errno; /* errno */ -}; - -#ifdef CONFIG_VIRT_CPU_ACCOUNTING -/* - * Hacks are here since types between compat_timeval (= pair of s32) and - * ia64-native timeval (= pair of s64) are not compatible, at least a file - * arch/ia64/ia32/../../../fs/binfmt_elf.c will get warnings from compiler on - * use of cputime_to_timeval(), which usually an alias of jiffies_to_timeval(). - */ -#define cputime_to_timeval(a,b) \ - do { (b)->tv_usec = 0; (b)->tv_sec = (a)/NSEC_PER_SEC; } while(0) -#else -#define jiffies_to_timeval(a,b) \ - do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; } while(0) -#endif - -struct elf_prstatus -{ - struct elf_siginfo pr_info; /* Info associated with signal */ - short pr_cursig; /* Current signal */ - unsigned int pr_sigpend; /* Set of pending signals */ - unsigned int pr_sighold; /* Set of held signals */ - pid_t pr_pid; - pid_t pr_ppid; - pid_t pr_pgrp; - pid_t pr_sid; - struct compat_timeval pr_utime; /* User time */ - struct compat_timeval pr_stime; /* System time */ - struct compat_timeval pr_cutime; /* Cumulative user time */ - struct compat_timeval pr_cstime; /* Cumulative system time */ - elf_gregset_t pr_reg; /* GP registers */ - int pr_fpvalid; /* True if math co-processor being used. */ -}; - -#define ELF_PRARGSZ (80) /* Number of chars for args */ - -struct elf_prpsinfo -{ - char pr_state; /* numeric process state */ - char pr_sname; /* char for pr_state */ - char pr_zomb; /* zombie */ - char pr_nice; /* nice val */ - unsigned int pr_flag; /* flags */ - __u16 pr_uid; - __u16 pr_gid; - pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; - /* Lots missing */ - char pr_fname[16]; /* filename of executable */ - char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ -}; - -#define ELF_CORE_COPY_REGS(pr_reg, regs) \ - pr_reg[0] = regs->r11; \ - pr_reg[1] = regs->r9; \ - pr_reg[2] = regs->r10; \ - pr_reg[3] = regs->r14; \ - pr_reg[4] = regs->r15; \ - pr_reg[5] = regs->r13; \ - pr_reg[6] = regs->r8; \ - pr_reg[7] = regs->r16 & 0xffff; \ - pr_reg[8] = (regs->r16 >> 16) & 0xffff; \ - pr_reg[9] = (regs->r16 >> 32) & 0xffff; \ - pr_reg[10] = (regs->r16 >> 48) & 0xffff; \ - pr_reg[11] = regs->r1; \ - pr_reg[12] = regs->cr_iip; \ - pr_reg[13] = regs->r17 & 0xffff; \ - pr_reg[14] = ia64_getreg(_IA64_REG_AR_EFLAG); \ - pr_reg[15] = regs->r12; \ - pr_reg[16] = (regs->r17 >> 16) & 0xffff; - -static inline void elf_core_copy_regs(elf_gregset_t *elfregs, - struct pt_regs *regs) -{ - ELF_CORE_COPY_REGS((*elfregs), regs) -} - -static inline int elf_core_copy_task_regs(struct task_struct *t, - elf_gregset_t* elfregs) -{ - ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t)); - return 1; -} - -static inline int -elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu) -{ - struct ia32_user_i387_struct *fpstate = (void*)fpu; - mm_segment_t old_fs; - - if (!tsk_used_math(tsk)) - return 0; - - old_fs = get_fs(); - set_fs(KERNEL_DS); - save_ia32_fpstate(tsk, (struct ia32_user_i387_struct __user *) fpstate); - set_fs(old_fs); - - return 1; -} - -#define ELF_CORE_COPY_XFPREGS 1 -#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG -static inline int -elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu) -{ - struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu; - mm_segment_t old_fs; - - if (!tsk_used_math(tsk)) - return 0; - - old_fs = get_fs(); - set_fs(KERNEL_DS); - save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate); - set_fs(old_fs); - - return 1; -} - -#endif /* _ELFCORE32_H_ */ diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S deleted file mode 100644 index 2fd7479aa21..00000000000 --- a/arch/ia64/ia32/ia32_entry.S +++ /dev/null @@ -1,468 +0,0 @@ -#include <asm/asmmacro.h> -#include <asm/ia32.h> -#include <asm/asm-offsets.h> -#include <asm/signal.h> -#include <asm/thread_info.h> - -#include "../kernel/minstate.h" - - /* - * execve() is special because in case of success, we need to - * setup a null register window frame (in case an IA-32 process - * is exec'ing an IA-64 program). - */ -ENTRY(ia32_execve) - .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(3) - alloc loc1=ar.pfs,3,2,4,0 - mov loc0=rp - .body - zxt4 out0=in0 // filename - ;; // stop bit between alloc and call - zxt4 out1=in1 // argv - zxt4 out2=in2 // envp - add out3=16,sp // regs - br.call.sptk.few rp=sys32_execve -1: cmp.ge p6,p0=r8,r0 - mov ar.pfs=loc1 // restore ar.pfs - ;; -(p6) mov ar.pfs=r0 // clear ar.pfs in case of success - sxt4 r8=r8 // return 64-bit result - mov rp=loc0 - br.ret.sptk.few rp -END(ia32_execve) - -ENTRY(ia32_clone) - .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(5) - alloc r16=ar.pfs,5,2,6,0 - DO_SAVE_SWITCH_STACK - mov loc0=rp - mov loc1=r16 // save ar.pfs across do_fork - .body - zxt4 out1=in1 // newsp - mov out3=16 // stacksize (compensates for 16-byte scratch area) - adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s - mov out0=in0 // out0 = clone_flags - zxt4 out4=in2 // out4 = parent_tidptr - zxt4 out5=in4 // out5 = child_tidptr - br.call.sptk.many rp=do_fork -.ret0: .restore sp - adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack - mov ar.pfs=loc1 - mov rp=loc0 - br.ret.sptk.many rp -END(ia32_clone) - -GLOBAL_ENTRY(ia32_ret_from_clone) - PT_REGS_UNWIND_INFO(0) -{ /* - * Some versions of gas generate bad unwind info if the first instruction of a - * procedure doesn't go into the first slot of a bundle. This is a workaround. - */ - nop.m 0 - nop.i 0 - /* - * We need to call schedule_tail() to complete the scheduling process. - * Called by ia64_switch_to after do_fork()->copy_thread(). r8 contains the - * address of the previously executing task. - */ - br.call.sptk.many rp=ia64_invoke_schedule_tail -} -.ret1: - adds r2=TI_FLAGS+IA64_TASK_SIZE,r13 - ;; - ld4 r2=[r2] - ;; - mov r8=0 - and r2=_TIF_SYSCALL_TRACEAUDIT,r2 - ;; - cmp.ne p6,p0=r2,r0 -(p6) br.cond.spnt .ia32_strace_check_retval - ;; // prevent RAW on r8 -END(ia32_ret_from_clone) - // fall through -GLOBAL_ENTRY(ia32_ret_from_syscall) - PT_REGS_UNWIND_INFO(0) - - cmp.ge p6,p7=r8,r0 // syscall executed successfully? - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp // r2 = &pt_regs.r8 - ;; - alloc r3=ar.pfs,0,0,0,0 // drop the syscall argument frame - st8 [r2]=r8 // store return value in slot for r8 - br.cond.sptk.many ia64_leave_kernel -END(ia32_ret_from_syscall) - - // - // Invoke a system call, but do some tracing before and after the call. - // We MUST preserve the current register frame throughout this routine - // because some system calls (such as ia64_execve) directly - // manipulate ar.pfs. - // - // Input: - // r8 = syscall number - // b6 = syscall entry point - // -GLOBAL_ENTRY(ia32_trace_syscall) - PT_REGS_UNWIND_INFO(0) - mov r3=-38 - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp - ;; - st8 [r2]=r3 // initialize return code to -ENOSYS - br.call.sptk.few rp=syscall_trace_enter // give parent a chance to catch syscall args - cmp.lt p6,p0=r8,r0 // check tracehook - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp // r2 = &pt_regs.r8 - ;; -(p6) st8.spill [r2]=r8 // store return value in slot for r8 -(p6) br.spnt.few .ret4 -.ret2: // Need to reload arguments (they may be changed by the tracing process) - adds r2=IA64_PT_REGS_R1_OFFSET+16,sp // r2 = &pt_regs.r1 - adds r3=IA64_PT_REGS_R13_OFFSET+16,sp // r3 = &pt_regs.r13 - mov r15=IA32_NR_syscalls - ;; - ld4 r8=[r2],IA64_PT_REGS_R9_OFFSET-IA64_PT_REGS_R1_OFFSET - movl r16=ia32_syscall_table - ;; - ld4 r33=[r2],8 // r9 == ecx - ld4 r37=[r3],16 // r13 == ebp - cmp.ltu.unc p6,p7=r8,r15 - ;; - ld4 r34=[r2],8 // r10 == edx - ld4 r36=[r3],8 // r15 == edi -(p6) shladd r16=r8,3,r16 // force ni_syscall if not valid syscall number - ;; - ld8 r16=[r16] - ;; - ld4 r32=[r2],8 // r11 == ebx - mov b6=r16 - ld4 r35=[r3],8 // r14 == esi - br.call.sptk.few rp=b6 // do the syscall -.ia32_strace_check_retval: - cmp.lt p6,p0=r8,r0 // syscall failed? - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp // r2 = &pt_regs.r8 - ;; - st8.spill [r2]=r8 // store return value in slot for r8 - br.call.sptk.few rp=syscall_trace_leave // give parent a chance to catch return value -.ret4: alloc r2=ar.pfs,0,0,0,0 // drop the syscall argument frame - br.cond.sptk.many ia64_leave_kernel -END(ia32_trace_syscall) - -GLOBAL_ENTRY(sys32_vfork) - alloc r16=ar.pfs,2,2,4,0;; - mov out0=IA64_CLONE_VFORK|IA64_CLONE_VM|SIGCHLD // out0 = clone_flags - br.cond.sptk.few .fork1 // do the work -END(sys32_vfork) - -GLOBAL_ENTRY(sys32_fork) - .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2) - alloc r16=ar.pfs,2,2,4,0 - mov out0=SIGCHLD // out0 = clone_flags - ;; -.fork1: - mov loc0=rp - mov loc1=r16 // save ar.pfs across do_fork - DO_SAVE_SWITCH_STACK - - .body - - mov out1=0 - mov out3=0 - adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s - br.call.sptk.few rp=do_fork -.ret5: .restore sp - adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack - mov ar.pfs=loc1 - mov rp=loc0 - br.ret.sptk.many rp -END(sys32_fork) - - .rodata - .align 8 - .globl ia32_syscall_table -ia32_syscall_table: - data8 sys_ni_syscall /* 0 - old "setup(" system call*/ - data8 sys_exit - data8 sys32_fork - data8 sys_read - data8 sys_write - data8 compat_sys_open /* 5 */ - data8 sys_close - data8 sys32_waitpid - data8 sys_creat - data8 sys_link - data8 sys_unlink /* 10 */ - data8 ia32_execve - data8 sys_chdir - data8 compat_sys_time - data8 sys_mknod - data8 sys_chmod /* 15 */ - data8 sys_lchown /* 16-bit version */ - data8 sys_ni_syscall /* old break syscall holder */ - data8 sys_ni_syscall - data8 sys32_lseek - data8 sys_getpid /* 20 */ - data8 compat_sys_mount - data8 sys_oldumount - data8 sys_setuid /* 16-bit version */ - data8 sys_getuid /* 16-bit version */ - data8 compat_sys_stime /* 25 */ - data8 compat_sys_ptrace - data8 sys32_alarm - data8 sys_ni_syscall - data8 sys_pause - data8 compat_sys_utime /* 30 */ - data8 sys_ni_syscall /* old stty syscall holder */ - data8 sys_ni_syscall /* old gtty syscall holder */ - data8 sys_access - data8 sys_nice - data8 sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - data8 sys_sync - data8 sys_kill - data8 sys_rename - data8 sys_mkdir - data8 sys_rmdir /* 40 */ - data8 sys_dup - data8 sys_ia64_pipe - data8 compat_sys_times - data8 sys_ni_syscall /* old prof syscall holder */ - data8 sys32_brk /* 45 */ - data8 sys_setgid /* 16-bit version */ - data8 sys_getgid /* 16-bit version */ - data8 sys32_signal - data8 sys_geteuid /* 16-bit version */ - data8 sys_getegid /* 16-bit version */ /* 50 */ - data8 sys_acct - data8 sys_umount /* recycled never used phys( */ - data8 sys_ni_syscall /* old lock syscall holder */ - data8 compat_sys_ioctl - data8 compat_sys_fcntl /* 55 */ - data8 sys_ni_syscall /* old mpx syscall holder */ - data8 sys_setpgid - data8 sys_ni_syscall /* old ulimit syscall holder */ - data8 sys_ni_syscall - data8 sys_umask /* 60 */ - data8 sys_chroot - data8 compat_sys_ustat - data8 sys_dup2 - data8 sys_getppid - data8 sys_getpgrp /* 65 */ - data8 sys_setsid - data8 sys32_sigaction - data8 sys_ni_syscall - data8 sys_ni_syscall - data8 sys_setreuid /* 16-bit version */ /* 70 */ - data8 sys_setregid /* 16-bit version */ - data8 sys32_sigsuspend - data8 compat_sys_sigpending - data8 sys_sethostname - data8 compat_sys_setrlimit /* 75 */ - data8 compat_sys_old_getrlimit - data8 compat_sys_getrusage - data8 compat_sys_gettimeofday - data8 compat_sys_settimeofday - data8 sys32_getgroups16 /* 80 */ - data8 sys32_setgroups16 - data8 sys32_old_select - data8 sys_symlink - data8 sys_ni_syscall - data8 sys_readlink /* 85 */ - data8 sys_uselib - data8 sys_swapon - data8 sys_reboot - data8 compat_sys_old_readdir - data8 sys32_mmap /* 90 */ - data8 sys32_munmap - data8 sys_truncate - data8 sys_ftruncate - data8 sys_fchmod - data8 sys_fchown /* 16-bit version */ /* 95 */ - data8 sys_getpriority - data8 sys_setpriority - data8 sys_ni_syscall /* old profil syscall holder */ - data8 compat_sys_statfs - data8 compat_sys_fstatfs /* 100 */ - data8 sys_ni_syscall /* ioperm */ - data8 compat_sys_socketcall - data8 sys_syslog - data8 compat_sys_setitimer - data8 compat_sys_getitimer /* 105 */ - data8 compat_sys_newstat - data8 compat_sys_newlstat - data8 compat_sys_newfstat - data8 sys_ni_syscall - data8 sys_ni_syscall /* iopl */ /* 110 */ - data8 sys_vhangup - data8 sys_ni_syscall /* used to be sys_idle */ - data8 sys_ni_syscall - data8 compat_sys_wait4 - data8 sys_swapoff /* 115 */ - data8 compat_sys_sysinfo - data8 sys32_ipc - data8 sys_fsync - data8 sys32_sigreturn - data8 ia32_clone /* 120 */ - data8 sys_setdomainname - data8 sys32_newuname - data8 sys32_modify_ldt - data8 compat_sys_adjtimex - data8 sys32_mprotect /* 125 */ - data8 compat_sys_sigprocmask - data8 sys_ni_syscall /* create_module */ - data8 sys_ni_syscall /* init_module */ - data8 sys_ni_syscall /* delete_module */ - data8 sys_ni_syscall /* get_kernel_syms */ /* 130 */ - data8 sys32_quotactl - data8 sys_getpgid - data8 sys_fchdir - data8 sys_ni_syscall /* sys_bdflush */ - data8 sys_sysfs /* 135 */ - data8 sys32_personality - data8 sys_ni_syscall /* for afs_syscall */ - data8 sys_setfsuid /* 16-bit version */ - data8 sys_setfsgid /* 16-bit version */ - data8 sys_llseek /* 140 */ - data8 compat_sys_getdents - data8 compat_sys_select - data8 sys_flock - data8 sys32_msync - data8 compat_sys_readv /* 145 */ - data8 compat_sys_writev - data8 sys_getsid - data8 sys_fdatasync - data8 compat_sys_sysctl - data8 sys_mlock /* 150 */ - data8 sys_munlock - data8 sys_mlockall - data8 sys_munlockall - data8 sys_sched_setparam - data8 sys_sched_getparam /* 155 */ - data8 sys_sched_setscheduler - data8 sys_sched_getscheduler - data8 sys_sched_yield - data8 sys_sched_get_priority_max - data8 sys_sched_get_priority_min /* 160 */ - data8 sys32_sched_rr_get_interval - data8 compat_sys_nanosleep - data8 sys32_mremap - data8 sys_setresuid /* 16-bit version */ - data8 sys32_getresuid16 /* 16-bit version */ /* 165 */ - data8 sys_ni_syscall /* vm86 */ - data8 sys_ni_syscall /* sys_query_module */ - data8 sys_poll - data8 sys_ni_syscall /* nfsservctl */ - data8 sys_setresgid /* 170 */ - data8 sys32_getresgid16 - data8 sys_prctl - data8 sys32_rt_sigreturn - data8 sys32_rt_sigaction - data8 sys32_rt_sigprocmask /* 175 */ - data8 sys_rt_sigpending - data8 compat_sys_rt_sigtimedwait - data8 sys32_rt_sigqueueinfo - data8 compat_sys_rt_sigsuspend - data8 sys32_pread /* 180 */ - data8 sys32_pwrite - data8 sys_chown /* 16-bit version */ - data8 sys_getcwd - data8 sys_capget - data8 sys_capset /* 185 */ - data8 sys32_sigaltstack - data8 sys32_sendfile - data8 sys_ni_syscall /* streams1 */ - data8 sys_ni_syscall /* streams2 */ - data8 sys32_vfork /* 190 */ - data8 compat_sys_getrlimit - data8 sys32_mmap2 - data8 sys32_truncate64 - data8 sys32_ftruncate64 - data8 sys32_stat64 /* 195 */ - data8 sys32_lstat64 - data8 sys32_fstat64 - data8 sys_lchown - data8 sys_getuid - data8 sys_getgid /* 200 */ - data8 sys_geteuid - data8 sys_getegid - data8 sys_setreuid - data8 sys_setregid - data8 sys_getgroups /* 205 */ - data8 sys_setgroups - data8 sys_fchown - data8 sys_setresuid - data8 sys_getresuid - data8 sys_setresgid /* 210 */ - data8 sys_getresgid - data8 sys_chown - data8 sys_setuid - data8 sys_setgid - data8 sys_setfsuid /* 215 */ - data8 sys_setfsgid - data8 sys_pivot_root - data8 sys_mincore - data8 sys_madvise - data8 compat_sys_getdents64 /* 220 */ - data8 compat_sys_fcntl64 - data8 sys_ni_syscall /* reserved for TUX */ - data8 sys_ni_syscall /* reserved for Security */ - data8 sys_gettid - data8 sys_readahead /* 225 */ - data8 sys_setxattr - data8 sys_lsetxattr - data8 sys_fsetxattr - data8 sys_getxattr - data8 sys_lgetxattr /* 230 */ - data8 sys_fgetxattr - data8 sys_listxattr - data8 sys_llistxattr - data8 sys_flistxattr - data8 sys_removexattr /* 235 */ - data8 sys_lremovexattr - data8 sys_fremovexattr - data8 sys_tkill - data8 sys_sendfile64 - data8 compat_sys_futex /* 240 */ - data8 compat_sys_sched_setaffinity - data8 compat_sys_sched_getaffinity - data8 sys32_set_thread_area - data8 sys32_get_thread_area - data8 compat_sys_io_setup /* 245 */ - data8 sys_io_destroy - data8 compat_sys_io_getevents - data8 compat_sys_io_submit - data8 sys_io_cancel - data8 sys_fadvise64 /* 250 */ - data8 sys_ni_syscall - data8 sys_exit_group - data8 sys_lookup_dcookie - data8 sys_epoll_create - data8 sys32_epoll_ctl /* 255 */ - data8 sys32_epoll_wait - data8 sys_remap_file_pages - data8 sys_set_tid_address - data8 compat_sys_timer_create - data8 compat_sys_timer_settime /* 260 */ - data8 compat_sys_timer_gettime - data8 sys_timer_getoverrun - data8 sys_timer_delete - data8 compat_sys_clock_settime - data8 compat_sys_clock_gettime /* 265 */ - data8 compat_sys_clock_getres - data8 compat_sys_clock_nanosleep - data8 compat_sys_statfs64 - data8 compat_sys_fstatfs64 - data8 sys_tgkill /* 270 */ - data8 compat_sys_utimes - data8 sys32_fadvise64_64 - data8 sys_ni_syscall - data8 sys_ni_syscall - data8 sys_ni_syscall /* 275 */ - data8 sys_ni_syscall - data8 compat_sys_mq_open - data8 sys_mq_unlink - data8 compat_sys_mq_timedsend - data8 compat_sys_mq_timedreceive /* 280 */ - data8 compat_sys_mq_notify - data8 compat_sys_mq_getsetattr - data8 sys_ni_syscall /* reserved for kexec */ - data8 compat_sys_waitid - - // guard against failures to increase IA32_NR_syscalls - .org ia32_syscall_table + 8*IA32_NR_syscalls diff --git a/arch/ia64/ia32/ia32_ldt.c b/arch/ia64/ia32/ia32_ldt.c deleted file mode 100644 index 16d51c14684..00000000000 --- a/arch/ia64/ia32/ia32_ldt.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * Copyright (C) 2001, 2004 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * - * Adapted from arch/i386/kernel/ldt.c - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/vmalloc.h> - -#include <asm/uaccess.h> - -#include "ia32priv.h" - -/* - * read_ldt() is not really atomic - this is not a problem since synchronization of reads - * and writes done to the LDT has to be assured by user-space anyway. Writes are atomic, - * to protect the security checks done on new descriptors. - */ -static int -read_ldt (void __user *ptr, unsigned long bytecount) -{ - unsigned long bytes_left, n; - char __user *src, *dst; - char buf[256]; /* temporary buffer (don't overflow kernel stack!) */ - - if (bytecount > IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE) - bytecount = IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE; - - bytes_left = bytecount; - - src = (void __user *) IA32_LDT_OFFSET; - dst = ptr; - - while (bytes_left) { - n = sizeof(buf); - if (n > bytes_left) - n = bytes_left; - - /* - * We know we're reading valid memory, but we still must guard against - * running out of memory. - */ - if (__copy_from_user(buf, src, n)) - return -EFAULT; - - if (copy_to_user(dst, buf, n)) - return -EFAULT; - - src += n; - dst += n; - bytes_left -= n; - } - return bytecount; -} - -static int -read_default_ldt (void __user * ptr, unsigned long bytecount) -{ - unsigned long size; - int err; - - /* XXX fix me: should return equivalent of default_ldt[0] */ - err = 0; - size = 8; - if (size > bytecount) - size = bytecount; - - err = size; - if (clear_user(ptr, size)) - err = -EFAULT; - - return err; -} - -static int -write_ldt (void __user * ptr, unsigned long bytecount, int oldmode) -{ - struct ia32_user_desc ldt_info; - __u64 entry; - int ret; - - if (bytecount != sizeof(ldt_info)) - return -EINVAL; - if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info))) - return -EFAULT; - - if (ldt_info.entry_number >= IA32_LDT_ENTRIES) - return -EINVAL; - if (ldt_info.contents == 3) { - if (oldmode) - return -EINVAL; - if (ldt_info.seg_not_present == 0) - return -EINVAL; - } - - if (ldt_info.base_addr == 0 && ldt_info.limit == 0 - && (oldmode || (ldt_info.contents == 0 && ldt_info.read_exec_only == 1 - && ldt_info.seg_32bit == 0 && ldt_info.limit_in_pages == 0 - && ldt_info.seg_not_present == 1 && ldt_info.useable == 0))) - /* allow LDTs to be cleared by the user */ - entry = 0; - else - /* we must set the "Accessed" bit as IVE doesn't emulate it */ - entry = IA32_SEG_DESCRIPTOR(ldt_info.base_addr, ldt_info.limit, - (((ldt_info.read_exec_only ^ 1) << 1) - | (ldt_info.contents << 2)) | 1, - 1, 3, ldt_info.seg_not_present ^ 1, - (oldmode ? 0 : ldt_info.useable), - ldt_info.seg_32bit, - ldt_info.limit_in_pages); - /* - * Install the new entry. We know we're accessing valid (mapped) user-level - * memory, but we still need to guard against out-of-memory, hence we must use - * put_user(). - */ - ret = __put_user(entry, (__u64 __user *) IA32_LDT_OFFSET + ldt_info.entry_number); - ia32_load_segment_descriptors(current); - return ret; -} - -asmlinkage int -sys32_modify_ldt (int func, unsigned int ptr, unsigned int bytecount) -{ - int ret = -ENOSYS; - - switch (func) { - case 0: - ret = read_ldt(compat_ptr(ptr), bytecount); - break; - case 1: - ret = write_ldt(compat_ptr(ptr), bytecount, 1); - break; - case 2: - ret = read_default_ldt(compat_ptr(ptr), bytecount); - break; - case 0x11: - ret = write_ldt(compat_ptr(ptr), bytecount, 0); - break; - } - return ret; -} diff --git a/arch/ia64/ia32/ia32_signal.c b/arch/ia64/ia32/ia32_signal.c deleted file mode 100644 index b763ca19ef1..00000000000 --- a/arch/ia64/ia32/ia32_signal.c +++ /dev/null @@ -1,1010 +0,0 @@ -/* - * IA32 Architecture-specific signal handling support. - * - * Copyright (C) 1999, 2001-2002, 2005 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> - * Copyright (C) 2000 VA Linux Co - * Copyright (C) 2000 Don Dugger <n0ano@valinux.com> - * - * Derived from i386 and Alpha versions. - */ - -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/personality.h> -#include <linux/ptrace.h> -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/syscalls.h> -#include <linux/unistd.h> -#include <linux/wait.h> -#include <linux/compat.h> - -#include <asm/intrinsics.h> -#include <asm/uaccess.h> -#include <asm/rse.h> -#include <asm/sigcontext.h> - -#include "ia32priv.h" - -#include "../kernel/sigframe.h" - -#define A(__x) ((unsigned long)(__x)) - -#define DEBUG_SIG 0 -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -#define __IA32_NR_sigreturn 119 -#define __IA32_NR_rt_sigreturn 173 - -struct sigframe_ia32 -{ - int pretcode; - int sig; - struct sigcontext_ia32 sc; - struct _fpstate_ia32 fpstate; - unsigned int extramask[_COMPAT_NSIG_WORDS-1]; - char retcode[8]; -}; - -struct rt_sigframe_ia32 -{ - int pretcode; - int sig; - int pinfo; - int puc; - compat_siginfo_t info; - struct ucontext_ia32 uc; - struct _fpstate_ia32 fpstate; - char retcode[8]; -}; - -int -copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from) -{ - unsigned long tmp; - int err; - - if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t))) - return -EFAULT; - - err = __get_user(to->si_signo, &from->si_signo); - err |= __get_user(to->si_errno, &from->si_errno); - err |= __get_user(to->si_code, &from->si_code); - - if (to->si_code < 0) - err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE); - else { - switch (to->si_code >> 16) { - case __SI_CHLD >> 16: - err |= __get_user(to->si_utime, &from->si_utime); - err |= __get_user(to->si_stime, &from->si_stime); - err |= __get_user(to->si_status, &from->si_status); - default: - err |= __get_user(to->si_pid, &from->si_pid); - err |= __get_user(to->si_uid, &from->si_uid); - break; - case __SI_FAULT >> 16: - err |= __get_user(tmp, &from->si_addr); - to->si_addr = (void __user *) tmp; - break; - case __SI_POLL >> 16: - err |= __get_user(to->si_band, &from->si_band); - err |= __get_user(to->si_fd, &from->si_fd); - break; - case __SI_RT >> 16: /* This is not generated by the kernel as of now. */ - case __SI_MESGQ >> 16: - err |= __get_user(to->si_pid, &from->si_pid); - err |= __get_user(to->si_uid, &from->si_uid); - err |= __get_user(to->si_int, &from->si_int); - break; - } - } - return err; -} - -int -copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from) -{ - unsigned int addr; - int err; - - if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t))) - return -EFAULT; - - /* If you change siginfo_t structure, please be sure - this code is fixed accordingly. - It should never copy any pad contained in the structure - to avoid security leaks, but must copy the generic - 3 ints plus the relevant union member. - This routine must convert siginfo from 64bit to 32bit as well - at the same time. */ - err = __put_user(from->si_signo, &to->si_signo); - err |= __put_user(from->si_errno, &to->si_errno); - err |= __put_user((short)from->si_code, &to->si_code); - if (from->si_code < 0) - err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE); - else { - switch (from->si_code >> 16) { - case __SI_CHLD >> 16: - err |= __put_user(from->si_utime, &to->si_utime); - err |= __put_user(from->si_stime, &to->si_stime); - err |= __put_user(from->si_status, &to->si_status); - default: - err |= __put_user(from->si_pid, &to->si_pid); - err |= __put_user(from->si_uid, &to->si_uid); - break; - case __SI_FAULT >> 16: - /* avoid type-checking warnings by copying _pad[0] in lieu of si_addr... */ - err |= __put_user(from->_sifields._pad[0], &to->si_addr); - break; - case __SI_POLL >> 16: - err |= __put_user(from->si_band, &to->si_band); - err |= __put_user(from->si_fd, &to->si_fd); - break; - case __SI_TIMER >> 16: - err |= __put_user(from->si_tid, &to->si_tid); - err |= __put_user(from->si_overrun, &to->si_overrun); - addr = (unsigned long) from->si_ptr; - err |= __put_user(addr, &to->si_ptr); - break; - case __SI_RT >> 16: /* Not generated by the kernel as of now. */ - case __SI_MESGQ >> 16: - err |= __put_user(from->si_uid, &to->si_uid); - err |= __put_user(from->si_pid, &to->si_pid); - addr = (unsigned long) from->si_ptr; - err |= __put_user(addr, &to->si_ptr); - break; - } - } - return err; -} - - -/* - * SAVE and RESTORE of ia32 fpstate info, from ia64 current state - * Used in exception handler to pass the fpstate to the user, and restore - * the fpstate while returning from the exception handler. - * - * fpstate info and their mapping to IA64 regs: - * fpstate REG(BITS) Attribute Comments - * cw ar.fcr(0:12) with bits 7 and 6 not used - * sw ar.fsr(0:15) - * tag ar.fsr(16:31) with odd numbered bits not used - * (read returns 0, writes ignored) - * ipoff ar.fir(0:31) - * cssel ar.fir(32:47) - * dataoff ar.fdr(0:31) - * datasel ar.fdr(32:47) - * - * _st[(0+TOS)%8] f8 - * _st[(1+TOS)%8] f9 - * _st[(2+TOS)%8] f10 - * _st[(3+TOS)%8] f11 (f8..f11 from ptregs) - * : : : (f12..f15 from live reg) - * : : : - * _st[(7+TOS)%8] f15 TOS=sw.top(bits11:13) - * - * status Same as sw RO - * magic 0 as X86_FXSR_MAGIC in ia32 - * mxcsr Bits(7:15)=ar.fcr(39:47) - * Bits(0:5) =ar.fsr(32:37) with bit 6 reserved - * _xmm[0..7] f16..f31 (live registers) - * with _xmm[0] - * Bit(64:127)=f17(0:63) - * Bit(0:63)=f16(0:63) - * All other fields unused... - */ - -static int -save_ia32_fpstate_live (struct _fpstate_ia32 __user *save) -{ - struct task_struct *tsk = current; - struct pt_regs *ptp; - struct _fpreg_ia32 *fpregp; - char buf[32]; - unsigned long fsr, fcr, fir, fdr; - unsigned long new_fsr; - unsigned long num128[2]; - unsigned long mxcsr=0; - int fp_tos, fr8_st_map; - - if (!access_ok(VERIFY_WRITE, save, sizeof(*save))) - return -EFAULT; - - /* Read in fsr, fcr, fir, fdr and copy onto fpstate */ - fsr = ia64_getreg(_IA64_REG_AR_FSR); - fcr = ia64_getreg(_IA64_REG_AR_FCR); - fir = ia64_getreg(_IA64_REG_AR_FIR); - fdr = ia64_getreg(_IA64_REG_AR_FDR); - - /* - * We need to clear the exception state before calling the signal handler. Clear - * the bits 15, bits 0-7 in fp status word. Similar to the functionality of fnclex - * instruction. - */ - new_fsr = fsr & ~0x80ff; - ia64_setreg(_IA64_REG_AR_FSR, new_fsr); - - __put_user(fcr & 0xffff, &save->cw); - __put_user(fsr & 0xffff, &save->sw); - __put_user((fsr>>16) & 0xffff, &save->tag); - __put_user(fir, &save->ipoff); - __put_user((fir>>32) & 0xffff, &save->cssel); - __put_user(fdr, &save->dataoff); - __put_user((fdr>>32) & 0xffff, &save->datasel); - __put_user(fsr & 0xffff, &save->status); - - mxcsr = ((fcr>>32) & 0xff80) | ((fsr>>32) & 0x3f); - __put_user(mxcsr & 0xffff, &save->mxcsr); - __put_user( 0, &save->magic); //#define X86_FXSR_MAGIC 0x0000 - - /* - * save f8..f11 from pt_regs - * save f12..f15 from live register set - */ - /* - * Find the location where f8 has to go in fp reg stack. This depends on - * TOP(11:13) field of sw. Other f reg continue sequentially from where f8 maps - * to. - */ - fp_tos = (fsr>>11)&0x7; - fr8_st_map = (8-fp_tos)&0x7; - ptp = task_pt_regs(tsk); - fpregp = (struct _fpreg_ia32 *)(((unsigned long)buf + 15) & ~15); - ia64f2ia32f(fpregp, &ptp->f8); - copy_to_user(&save->_st[(0+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - ia64f2ia32f(fpregp, &ptp->f9); - copy_to_user(&save->_st[(1+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - ia64f2ia32f(fpregp, &ptp->f10); - copy_to_user(&save->_st[(2+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - ia64f2ia32f(fpregp, &ptp->f11); - copy_to_user(&save->_st[(3+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - - ia64_stfe(fpregp, 12); - copy_to_user(&save->_st[(4+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - ia64_stfe(fpregp, 13); - copy_to_user(&save->_st[(5+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - ia64_stfe(fpregp, 14); - copy_to_user(&save->_st[(6+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - ia64_stfe(fpregp, 15); - copy_to_user(&save->_st[(7+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32)); - - ia64_stf8(&num128[0], 16); - ia64_stf8(&num128[1], 17); - copy_to_user(&save->_xmm[0], num128, sizeof(struct _xmmreg_ia32)); - - ia64_stf8(&num128[0], 18); - ia64_stf8(&num128[1], 19); - copy_to_user(&save->_xmm[1], num128, sizeof(struct _xmmreg_ia32)); - - ia64_stf8(&num128[0], 20); - ia64_stf8(&num128[1], 21); - copy_to_user(&save->_xmm[2], num128, sizeof(struct _xmmreg_ia32)); - - ia64_stf8(&num128[0], 22); - ia64_stf8(&num128[1], 23); - copy_to_user(&save->_xmm[3], num128, sizeof(struct _xmmreg_ia32)); - - ia64_stf8(&num128[0], 24); - ia64_stf8(&num128[1], 25); - copy_to_user(&save->_xmm[4], num128, sizeof(struct _xmmreg_ia32)); - - ia64_stf8(&num128[0], 26); - ia64_stf8(&num128[1], 27); - copy_to_user(&save->_xmm[5], num128, sizeof(struct _xmmreg_ia32)); - - ia64_stf8(&num128[0], 28); - ia64_stf8(&num128[1], 29); - copy_to_user(&save->_xmm[6], num128, sizeof(struct _xmmreg_ia32)); - - ia64_stf8(&num128[0], 30); - ia64_stf8(&num128[1], 31); - copy_to_user(&save->_xmm[7], num128, sizeof(struct _xmmreg_ia32)); - return 0; -} - -static int -restore_ia32_fpstate_live (struct _fpstate_ia32 __user *save) -{ - struct task_struct *tsk = current; - struct pt_regs *ptp; - unsigned int lo, hi; - unsigned long num128[2]; - unsigned long num64, mxcsr; - struct _fpreg_ia32 *fpregp; - char buf[32]; - unsigned long fsr, fcr, fir, fdr; - int fp_tos, fr8_st_map; - - if (!access_ok(VERIFY_READ, save, sizeof(*save))) - return(-EFAULT); - - /* - * Updating fsr, fcr, fir, fdr. - * Just a bit more complicated than save. - * - Need to make sure that we don't write any value other than the - * specific fpstate info - * - Need to make sure that the untouched part of frs, fdr, fir, fcr - * should remain same while writing. - * So, we do a read, change specific fields and write. - */ - fsr = ia64_getreg(_IA64_REG_AR_FSR); - fcr = ia64_getreg(_IA64_REG_AR_FCR); - fir = ia64_getreg(_IA64_REG_AR_FIR); - fdr = ia64_getreg(_IA64_REG_AR_FDR); - - __get_user(mxcsr, (unsigned int __user *)&save->mxcsr); - /* setting bits 0..5 8..12 with cw and 39..47 from mxcsr */ - __get_user(lo, (unsigned int __user *)&save->cw); - num64 = mxcsr & 0xff10; - num64 = (num64 << 32) | (lo & 0x1f3f); - fcr = (fcr & (~0xff1000001f3fUL)) | num64; - - /* setting bits 0..31 with sw and tag and 32..37 from mxcsr */ - __get_user(lo, (unsigned int __user *)&save->sw); - /* set bits 15,7 (fsw.b, fsw.es) to reflect the current error status */ - if ( !(lo & 0x7f) ) - lo &= (~0x8080); - __get_user(hi, (unsigned int __user *)&save->tag); - num64 = mxcsr & 0x3f; - num64 = (num64 << 16) | (hi & 0xffff); - num64 = (num64 << 16) | (lo & 0xffff); - fsr = (fsr & (~0x3fffffffffUL)) | num64; - - /* setting bits 0..47 with cssel and ipoff */ - __get_user(lo, (unsigned int __user *)&save->ipoff); - __get_user(hi, (unsigned int __user *)&save->cssel); - num64 = hi & 0xffff; - num64 = (num64 << 32) | lo; - fir = (fir & (~0xffffffffffffUL)) | num64; - - /* setting bits 0..47 with datasel and dataoff */ - __get_user(lo, (unsigned int __user *)&save->dataoff); - __get_user(hi, (unsigned int __user *)&save->datasel); - num64 = hi & 0xffff; - num64 = (num64 << 32) | lo; - fdr = (fdr & (~0xffffffffffffUL)) | num64; - - ia64_setreg(_IA64_REG_AR_FSR, fsr); - ia64_setreg(_IA64_REG_AR_FCR, fcr); - ia64_setreg(_IA64_REG_AR_FIR, fir); - ia64_setreg(_IA64_REG_AR_FDR, fdr); - - /* - * restore f8..f11 onto pt_regs - * restore f12..f15 onto live registers - */ - /* - * Find the location where f8 has to go in fp reg stack. This depends on - * TOP(11:13) field of sw. Other f reg continue sequentially from where f8 maps - * to. - */ - fp_tos = (fsr>>11)&0x7; - fr8_st_map = (8-fp_tos)&0x7; - fpregp = (struct _fpreg_ia32 *)(((unsigned long)buf + 15) & ~15); - - ptp = task_pt_regs(tsk); - copy_from_user(fpregp, &save->_st[(0+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia32f2ia64f(&ptp->f8, fpregp); - copy_from_user(fpregp, &save->_st[(1+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia32f2ia64f(&ptp->f9, fpregp); - copy_from_user(fpregp, &save->_st[(2+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia32f2ia64f(&ptp->f10, fpregp); - copy_from_user(fpregp, &save->_st[(3+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia32f2ia64f(&ptp->f11, fpregp); - - copy_from_user(fpregp, &save->_st[(4+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia64_ldfe(12, fpregp); - copy_from_user(fpregp, &save->_st[(5+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia64_ldfe(13, fpregp); - copy_from_user(fpregp, &save->_st[(6+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia64_ldfe(14, fpregp); - copy_from_user(fpregp, &save->_st[(7+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32)); - ia64_ldfe(15, fpregp); - - copy_from_user(num128, &save->_xmm[0], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(16, &num128[0]); - ia64_ldf8(17, &num128[1]); - - copy_from_user(num128, &save->_xmm[1], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(18, &num128[0]); - ia64_ldf8(19, &num128[1]); - - copy_from_user(num128, &save->_xmm[2], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(20, &num128[0]); - ia64_ldf8(21, &num128[1]); - - copy_from_user(num128, &save->_xmm[3], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(22, &num128[0]); - ia64_ldf8(23, &num128[1]); - - copy_from_user(num128, &save->_xmm[4], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(24, &num128[0]); - ia64_ldf8(25, &num128[1]); - - copy_from_user(num128, &save->_xmm[5], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(26, &num128[0]); - ia64_ldf8(27, &num128[1]); - - copy_from_user(num128, &save->_xmm[6], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(28, &num128[0]); - ia64_ldf8(29, &num128[1]); - - copy_from_user(num128, &save->_xmm[7], sizeof(struct _xmmreg_ia32)); - ia64_ldf8(30, &num128[0]); - ia64_ldf8(31, &num128[1]); - return 0; -} - -static inline void -sigact_set_handler (struct k_sigaction *sa, unsigned int handler, unsigned int restorer) -{ - if (handler + 1 <= 2) - /* SIG_DFL, SIG_IGN, or SIG_ERR: must sign-extend to 64-bits */ - sa->sa.sa_handler = (__sighandler_t) A((int) handler); - else - sa->sa.sa_handler = (__sighandler_t) (((unsigned long) restorer << 32) | handler); -} - -asmlinkage long -sys32_sigsuspend (int history0, int history1, old_sigset_t mask) -{ - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - current->state = TASK_INTERRUPTIBLE; - schedule(); - set_restore_sigmask(); - return -ERESTARTNOHAND; -} - -asmlinkage long -sys32_signal (int sig, unsigned int handler) -{ - struct k_sigaction new_sa, old_sa; - int ret; - - sigact_set_handler(&new_sa, handler, 0); - new_sa.sa.sa_flags = SA_ONESHOT | SA_NOMASK; - sigemptyset(&new_sa.sa.sa_mask); - - ret = do_sigaction(sig, &new_sa, &old_sa); - - return ret ? ret : IA32_SA_HANDLER(&old_sa); -} - -asmlinkage long -sys32_rt_sigaction (int sig, struct sigaction32 __user *act, - struct sigaction32 __user *oact, unsigned int sigsetsize) -{ - struct k_sigaction new_ka, old_ka; - unsigned int handler, restorer; - int ret; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(compat_sigset_t)) - return -EINVAL; - - if (act) { - ret = get_user(handler, &act->sa_handler); - ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags); - ret |= get_user(restorer, &act->sa_restorer); - ret |= copy_from_user(&new_ka.sa.sa_mask, &act->sa_mask, sizeof(compat_sigset_t)); - if (ret) - return -EFAULT; - - sigact_set_handler(&new_ka, handler, restorer); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - ret = put_user(IA32_SA_HANDLER(&old_ka), &oact->sa_handler); - ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags); - ret |= put_user(IA32_SA_RESTORER(&old_ka), &oact->sa_restorer); - ret |= copy_to_user(&oact->sa_mask, &old_ka.sa.sa_mask, sizeof(compat_sigset_t)); - } - return ret; -} - - -asmlinkage long -sys32_rt_sigprocmask (int how, compat_sigset_t __user *set, compat_sigset_t __user *oset, - unsigned int sigsetsize) -{ - mm_segment_t old_fs = get_fs(); - sigset_t s; - long ret; - - if (sigsetsize > sizeof(s)) - return -EINVAL; - - if (set) { - memset(&s, 0, sizeof(s)); - if (copy_from_user(&s.sig, set, sigsetsize)) - return -EFAULT; - } - set_fs(KERNEL_DS); - ret = sys_rt_sigprocmask(how, - set ? (sigset_t __user *) &s : NULL, - oset ? (sigset_t __user *) &s : NULL, sizeof(s)); - set_fs(old_fs); - if (ret) - return ret; - if (oset) { - if (copy_to_user(oset, &s.sig, sigsetsize)) - return -EFAULT; - } - return 0; -} - -asmlinkage long -sys32_rt_sigqueueinfo (int pid, int sig, compat_siginfo_t __user *uinfo) -{ - mm_segment_t old_fs = get_fs(); - siginfo_t info; - int ret; - - if (copy_siginfo_from_user32(&info, uinfo)) - return -EFAULT; - set_fs(KERNEL_DS); - ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info); - set_fs(old_fs); - return ret; -} - -asmlinkage long -sys32_sigaction (int sig, struct old_sigaction32 __user *act, struct old_sigaction32 __user *oact) -{ - struct k_sigaction new_ka, old_ka; - unsigned int handler, restorer; - int ret; - - if (act) { - compat_old_sigset_t mask; - - ret = get_user(handler, &act->sa_handler); - ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags); - ret |= get_user(restorer, &act->sa_restorer); - ret |= get_user(mask, &act->sa_mask); - if (ret) - return ret; - - sigact_set_handler(&new_ka, handler, restorer); - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - ret = put_user(IA32_SA_HANDLER(&old_ka), &oact->sa_handler); - ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags); - ret |= put_user(IA32_SA_RESTORER(&old_ka), &oact->sa_restorer); - ret |= put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); - } - - return ret; -} - -static int -setup_sigcontext_ia32 (struct sigcontext_ia32 __user *sc, struct _fpstate_ia32 __user *fpstate, - struct pt_regs *regs, unsigned long mask) -{ - int err = 0; - unsigned long flag; - - if (!access_ok(VERIFY_WRITE, sc, sizeof(*sc))) - return -EFAULT; - - err |= __put_user((regs->r16 >> 32) & 0xffff, (unsigned int __user *)&sc->fs); - err |= __put_user((regs->r16 >> 48) & 0xffff, (unsigned int __user *)&sc->gs); - err |= __put_user((regs->r16 >> 16) & 0xffff, (unsigned int __user *)&sc->es); - err |= __put_user(regs->r16 & 0xffff, (unsigned int __user *)&sc->ds); - err |= __put_user(regs->r15, &sc->edi); - err |= __put_user(regs->r14, &sc->esi); - err |= __put_user(regs->r13, &sc->ebp); - err |= __put_user(regs->r12, &sc->esp); - err |= __put_user(regs->r11, &sc->ebx); - err |= __put_user(regs->r10, &sc->edx); - err |= __put_user(regs->r9, &sc->ecx); - err |= __put_user(regs->r8, &sc->eax); -#if 0 - err |= __put_user(current->tss.trap_no, &sc->trapno); - err |= __put_user(current->tss.error_code, &sc->err); -#endif - err |= __put_user(regs->cr_iip, &sc->eip); - err |= __put_user(regs->r17 & 0xffff, (unsigned int __user *)&sc->cs); - /* - * `eflags' is in an ar register for this context - */ - flag = ia64_getreg(_IA64_REG_AR_EFLAG); - err |= __put_user((unsigned int)flag, &sc->eflags); - err |= __put_user(regs->r12, &sc->esp_at_signal); - err |= __put_user((regs->r17 >> 16) & 0xffff, (unsigned int __user *)&sc->ss); - - if ( save_ia32_fpstate_live(fpstate) < 0 ) - err = -EFAULT; - else - err |= __put_user((u32)(u64)fpstate, &sc->fpstate); - -#if 0 - tmp = save_i387(fpstate); - if (tmp < 0) - err = 1; - else - err |= __put_user(tmp ? fpstate : NULL, &sc->fpstate); - - /* non-iBCS2 extensions.. */ -#endif - err |= __put_user(mask, &sc->oldmask); -#if 0 - err |= __put_user(current->tss.cr2, &sc->cr2); -#endif - return err; -} - -static int -restore_sigcontext_ia32 (struct pt_regs *regs, struct sigcontext_ia32 __user *sc, int *peax) -{ - unsigned int err = 0; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - if (!access_ok(VERIFY_READ, sc, sizeof(*sc))) - return(-EFAULT); - -#define COPY(ia64x, ia32x) err |= __get_user(regs->ia64x, &sc->ia32x) - -#define copyseg_gs(tmp) (regs->r16 |= (unsigned long) (tmp) << 48) -#define copyseg_fs(tmp) (regs->r16 |= (unsigned long) (tmp) << 32) -#define copyseg_cs(tmp) (regs->r17 |= tmp) -#define copyseg_ss(tmp) (regs->r17 |= (unsigned long) (tmp) << 16) -#define copyseg_es(tmp) (regs->r16 |= (unsigned long) (tmp) << 16) -#define copyseg_ds(tmp) (regs->r16 |= tmp) - -#define COPY_SEG(seg) \ - { \ - unsigned short tmp; \ - err |= __get_user(tmp, &sc->seg); \ - copyseg_##seg(tmp); \ - } -#define COPY_SEG_STRICT(seg) \ - { \ - unsigned short tmp; \ - err |= __get_user(tmp, &sc->seg); \ - copyseg_##seg(tmp|3); \ - } - - /* To make COPY_SEGs easier, we zero r16, r17 */ - regs->r16 = 0; - regs->r17 = 0; - - COPY_SEG(gs); - COPY_SEG(fs); - COPY_SEG(es); - COPY_SEG(ds); - COPY(r15, edi); - COPY(r14, esi); - COPY(r13, ebp); - COPY(r12, esp); - COPY(r11, ebx); - COPY(r10, edx); - COPY(r9, ecx); - COPY(cr_iip, eip); - COPY_SEG_STRICT(cs); - COPY_SEG_STRICT(ss); - ia32_load_segment_descriptors(current); - { - unsigned int tmpflags; - unsigned long flag; - - /* - * IA32 `eflags' is not part of `pt_regs', it's in an ar register which - * is part of the thread context. Fortunately, we are executing in the - * IA32 process's context. - */ - err |= __get_user(tmpflags, &sc->eflags); - flag = ia64_getreg(_IA64_REG_AR_EFLAG); - flag &= ~0x40DD5; - flag |= (tmpflags & 0x40DD5); - ia64_setreg(_IA64_REG_AR_EFLAG, flag); - - regs->r1 = -1; /* disable syscall checks, r1 is orig_eax */ - } - - { - struct _fpstate_ia32 __user *buf = NULL; - u32 fpstate_ptr; - err |= get_user(fpstate_ptr, &(sc->fpstate)); - buf = compat_ptr(fpstate_ptr); - if (buf) { - err |= restore_ia32_fpstate_live(buf); - } - } - -#if 0 - { - struct _fpstate * buf; - err |= __get_user(buf, &sc->fpstate); - if (buf) { - if (!access_ok(VERIFY_READ, buf, sizeof(*buf))) - goto badframe; - err |= restore_i387(buf); - } - } -#endif - - err |= __get_user(*peax, &sc->eax); - return err; - -#if 0 - badframe: - return 1; -#endif -} - -/* - * Determine which stack to use.. - */ -static inline void __user * -get_sigframe (struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size) -{ - unsigned long esp; - - /* Default to using normal stack (truncate off sign-extension of bit 31: */ - esp = (unsigned int) regs->r12; - - /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - int onstack = sas_ss_flags(esp); - - if (onstack == 0) - esp = current->sas_ss_sp + current->sas_ss_size; - else if (onstack == SS_ONSTACK) { - /* - * If we are on the alternate signal stack and would - * overflow it, don't. Return an always-bogus address - * instead so we will die with SIGSEGV. - */ - if (!likely(on_sig_stack(esp - frame_size))) - return (void __user *) -1L; - } - } - /* Legacy stack switching not supported */ - - esp -= frame_size; - /* Align the stack pointer according to the i386 ABI, - * i.e. so that on function entry ((sp + 4) & 15) == 0. */ - esp = ((esp + 4) & -16ul) - 4; - return (void __user *) esp; -} - -static int -setup_frame_ia32 (int sig, struct k_sigaction *ka, sigset_t *set, struct pt_regs * regs) -{ - struct exec_domain *ed = current_thread_info()->exec_domain; - struct sigframe_ia32 __user *frame; - int err = 0; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; - - err |= __put_user((ed && ed->signal_invmap && sig < 32 - ? (int)(ed->signal_invmap[sig]) : sig), &frame->sig); - - err |= setup_sigcontext_ia32(&frame->sc, &frame->fpstate, regs, set->sig[0]); - - if (_COMPAT_NSIG_WORDS > 1) - err |= __copy_to_user(frame->extramask, (char *) &set->sig + 4, - sizeof(frame->extramask)); - - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - if (ka->sa.sa_flags & SA_RESTORER) { - unsigned int restorer = IA32_SA_RESTORER(ka); - err |= __put_user(restorer, &frame->pretcode); - } else { - /* Pointing to restorer in ia32 gate page */ - err |= __put_user(IA32_GATE_OFFSET, &frame->pretcode); - } - - /* This is popl %eax ; movl $,%eax ; int $0x80 - * and there for historical reasons only. - * See arch/i386/kernel/signal.c - */ - - err |= __put_user(0xb858, (short __user *)(frame->retcode+0)); - err |= __put_user(__IA32_NR_sigreturn, (int __user *)(frame->retcode+2)); - err |= __put_user(0x80cd, (short __user *)(frame->retcode+6)); - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler */ - regs->r12 = (unsigned long) frame; - regs->cr_iip = IA32_SA_HANDLER(ka); - - set_fs(USER_DS); - -#if 0 - regs->eflags &= ~TF_MASK; -#endif - -#if 0 - printk("SIG deliver (%s:%d): sig=%d sp=%p pc=%lx ra=%x\n", - current->comm, current->pid, sig, (void *) frame, regs->cr_iip, frame->pretcode); -#endif - - return 1; - - give_sigsegv: - force_sigsegv(sig, current); - return 0; -} - -static int -setup_rt_frame_ia32 (int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs * regs) -{ - struct exec_domain *ed = current_thread_info()->exec_domain; - compat_uptr_t pinfo, puc; - struct rt_sigframe_ia32 __user *frame; - int err = 0; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; - - err |= __put_user((ed && ed->signal_invmap - && sig < 32 ? ed->signal_invmap[sig] : sig), &frame->sig); - - pinfo = (long __user) &frame->info; - puc = (long __user) &frame->uc; - err |= __put_user(pinfo, &frame->pinfo); - err |= __put_user(puc, &frame->puc); - err |= copy_siginfo_to_user32(&frame->info, info); - - /* Create the ucontext. */ - err |= __put_user(0, &frame->uc.uc_flags); - err |= __put_user(0, &frame->uc.uc_link); - err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->r12), &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= setup_sigcontext_ia32(&frame->uc.uc_mcontext, &frame->fpstate, regs, set->sig[0]); - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - if (err) - goto give_sigsegv; - - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - if (ka->sa.sa_flags & SA_RESTORER) { - unsigned int restorer = IA32_SA_RESTORER(ka); - err |= __put_user(restorer, &frame->pretcode); - } else { - /* Pointing to rt_restorer in ia32 gate page */ - err |= __put_user(IA32_GATE_OFFSET + 8, &frame->pretcode); - } - - /* This is movl $,%eax ; int $0x80 - * and there for historical reasons only. - * See arch/i386/kernel/signal.c - */ - - err |= __put_user(0xb8, (char __user *)(frame->retcode+0)); - err |= __put_user(__IA32_NR_rt_sigreturn, (int __user *)(frame->retcode+1)); - err |= __put_user(0x80cd, (short __user *)(frame->retcode+5)); - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler */ - regs->r12 = (unsigned long) frame; - regs->cr_iip = IA32_SA_HANDLER(ka); - - set_fs(USER_DS); - -#if 0 - regs->eflags &= ~TF_MASK; -#endif - -#if 0 - printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%x\n", - current->comm, current->pid, (void *) frame, regs->cr_iip, frame->pretcode); -#endif - - return 1; - -give_sigsegv: - force_sigsegv(sig, current); - return 0; -} - -int -ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs) -{ - /* Set up the stack frame */ - if (ka->sa.sa_flags & SA_SIGINFO) - return setup_rt_frame_ia32(sig, ka, info, set, regs); - else - return setup_frame_ia32(sig, ka, set, regs); -} - -asmlinkage long -sys32_sigreturn (int arg0, int arg1, int arg2, int arg3, int arg4, int arg5, - int arg6, int arg7, struct pt_regs regs) -{ - unsigned long esp = (unsigned int) regs.r12; - struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(esp - 8); - sigset_t set; - int eax; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - - if (__get_user(set.sig[0], &frame->sc.oldmask) - || (_COMPAT_NSIG_WORDS > 1 && __copy_from_user((char *) &set.sig + 4, &frame->extramask, - sizeof(frame->extramask)))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext_ia32(®s, &frame->sc, &eax)) - goto badframe; - return eax; - - badframe: - force_sig(SIGSEGV, current); - return 0; -} - -asmlinkage long -sys32_rt_sigreturn (int arg0, int arg1, int arg2, int arg3, int arg4, - int arg5, int arg6, int arg7, struct pt_regs regs) -{ - unsigned long esp = (unsigned int) regs.r12; - struct rt_sigframe_ia32 __user *frame = (struct rt_sigframe_ia32 __user *)(esp - 4); - sigset_t set; - int eax; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext_ia32(®s, &frame->uc.uc_mcontext, &eax)) - goto badframe; - - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - do_sigaltstack((stack_t __user *) &frame->uc.uc_stack, NULL, esp); - - return eax; - - badframe: - force_sig(SIGSEGV, current); - return 0; -} diff --git a/arch/ia64/ia32/ia32_support.c b/arch/ia64/ia32/ia32_support.c deleted file mode 100644 index a6965ddafc4..00000000000 --- a/arch/ia64/ia32/ia32_support.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * IA32 helper functions - * - * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> - * Copyright (C) 2000 Asit K. Mallick <asit.k.mallick@intel.com> - * Copyright (C) 2001-2002 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * - * 06/16/00 A. Mallick added csd/ssd/tssd for ia32 thread context - * 02/19/01 D. Mosberger dropped tssd; it's not needed - * 09/14/01 D. Mosberger fixed memory management for gdt/tss page - * 09/29/01 D. Mosberger added ia32_load_segment_descriptors() - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/sched.h> - -#include <asm/intrinsics.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/system.h> -#include <asm/processor.h> -#include <asm/uaccess.h> - -#include "ia32priv.h" - -extern int die_if_kernel (char *str, struct pt_regs *regs, long err); - -struct page *ia32_shared_page[NR_CPUS]; -unsigned long *ia32_boot_gdt; -unsigned long *cpu_gdt_table[NR_CPUS]; -struct page *ia32_gate_page; - -static unsigned long -load_desc (u16 selector) -{ - unsigned long *table, limit, index; - - if (!selector) - return 0; - if (selector & IA32_SEGSEL_TI) { - table = (unsigned long *) IA32_LDT_OFFSET; - limit = IA32_LDT_ENTRIES; - } else { - table = cpu_gdt_table[smp_processor_id()]; - limit = IA32_PAGE_SIZE / sizeof(ia32_boot_gdt[0]); - } - index = selector >> IA32_SEGSEL_INDEX_SHIFT; - if (index >= limit) - return 0; - return IA32_SEG_UNSCRAMBLE(table[index]); -} - -void -ia32_load_segment_descriptors (struct task_struct *task) -{ - struct pt_regs *regs = task_pt_regs(task); - - /* Setup the segment descriptors */ - regs->r24 = load_desc(regs->r16 >> 16); /* ESD */ - regs->r27 = load_desc(regs->r16 >> 0); /* DSD */ - regs->r28 = load_desc(regs->r16 >> 32); /* FSD */ - regs->r29 = load_desc(regs->r16 >> 48); /* GSD */ - regs->ar_csd = load_desc(regs->r17 >> 0); /* CSD */ - regs->ar_ssd = load_desc(regs->r17 >> 16); /* SSD */ -} - -int -ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs) -{ - struct desc_struct *desc; - struct ia32_user_desc info; - int idx; - - if (copy_from_user(&info, (void __user *)(childregs->r14 & 0xffffffff), sizeof(info))) - return -EFAULT; - if (LDT_empty(&info)) - return -EINVAL; - - idx = info.entry_number; - if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) - return -EINVAL; - - desc = child->thread.tls_array + idx - GDT_ENTRY_TLS_MIN; - desc->a = LDT_entry_a(&info); - desc->b = LDT_entry_b(&info); - - /* XXX: can this be done in a cleaner way ? */ - load_TLS(&child->thread, smp_processor_id()); - ia32_load_segment_descriptors(child); - load_TLS(¤t->thread, smp_processor_id()); - - return 0; -} - -void -ia32_save_state (struct task_struct *t) -{ - t->thread.eflag = ia64_getreg(_IA64_REG_AR_EFLAG); - t->thread.fsr = ia64_getreg(_IA64_REG_AR_FSR); - t->thread.fcr = ia64_getreg(_IA64_REG_AR_FCR); - t->thread.fir = ia64_getreg(_IA64_REG_AR_FIR); - t->thread.fdr = ia64_getreg(_IA64_REG_AR_FDR); - ia64_set_kr(IA64_KR_IO_BASE, t->thread.old_iob); - ia64_set_kr(IA64_KR_TSSD, t->thread.old_k1); -} - -void -ia32_load_state (struct task_struct *t) -{ - unsigned long eflag, fsr, fcr, fir, fdr, tssd; - struct pt_regs *regs = task_pt_regs(t); - - eflag = t->thread.eflag; - fsr = t->thread.fsr; - fcr = t->thread.fcr; - fir = t->thread.fir; - fdr = t->thread.fdr; - tssd = load_desc(_TSS); /* TSSD */ - - ia64_setreg(_IA64_REG_AR_EFLAG, eflag); - ia64_setreg(_IA64_REG_AR_FSR, fsr); - ia64_setreg(_IA64_REG_AR_FCR, fcr); - ia64_setreg(_IA64_REG_AR_FIR, fir); - ia64_setreg(_IA64_REG_AR_FDR, fdr); - current->thread.old_iob = ia64_get_kr(IA64_KR_IO_BASE); - current->thread.old_k1 = ia64_get_kr(IA64_KR_TSSD); - ia64_set_kr(IA64_KR_IO_BASE, IA32_IOBASE); - ia64_set_kr(IA64_KR_TSSD, tssd); - - regs->r17 = (_TSS << 48) | (_LDT << 32) | (__u32) regs->r17; - regs->r30 = load_desc(_LDT); /* LDTD */ - load_TLS(&t->thread, smp_processor_id()); -} - -/* - * Setup IA32 GDT and TSS - */ -void -ia32_gdt_init (void) -{ - int cpu = smp_processor_id(); - - ia32_shared_page[cpu] = alloc_page(GFP_KERNEL); - if (!ia32_shared_page[cpu]) - panic("failed to allocate ia32_shared_page[%d]\n", cpu); - - cpu_gdt_table[cpu] = page_address(ia32_shared_page[cpu]); - - /* Copy from the boot cpu's GDT */ - memcpy(cpu_gdt_table[cpu], ia32_boot_gdt, PAGE_SIZE); -} - - -/* - * Setup IA32 GDT and TSS - */ -static void -ia32_boot_gdt_init (void) -{ - unsigned long ldt_size; - - ia32_shared_page[0] = alloc_page(GFP_KERNEL); - if (!ia32_shared_page[0]) - panic("failed to allocate ia32_shared_page[0]\n"); - - ia32_boot_gdt = page_address(ia32_shared_page[0]); - cpu_gdt_table[0] = ia32_boot_gdt; - - /* CS descriptor in IA-32 (scrambled) format */ - ia32_boot_gdt[__USER_CS >> 3] - = IA32_SEG_DESCRIPTOR(0, (IA32_GATE_END-1) >> IA32_PAGE_SHIFT, - 0xb, 1, 3, 1, 1, 1, 1); - - /* DS descriptor in IA-32 (scrambled) format */ - ia32_boot_gdt[__USER_DS >> 3] - = IA32_SEG_DESCRIPTOR(0, (IA32_GATE_END-1) >> IA32_PAGE_SHIFT, - 0x3, 1, 3, 1, 1, 1, 1); - - ldt_size = PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE); - ia32_boot_gdt[TSS_ENTRY] = IA32_SEG_DESCRIPTOR(IA32_TSS_OFFSET, 235, - 0xb, 0, 3, 1, 1, 1, 0); - ia32_boot_gdt[LDT_ENTRY] = IA32_SEG_DESCRIPTOR(IA32_LDT_OFFSET, ldt_size - 1, - 0x2, 0, 3, 1, 1, 1, 0); -} - -static void -ia32_gate_page_init(void) -{ - unsigned long *sr; - - ia32_gate_page = alloc_page(GFP_KERNEL); - sr = page_address(ia32_gate_page); - /* This is popl %eax ; movl $,%eax ; int $0x80 */ - *sr++ = 0xb858 | (__IA32_NR_sigreturn << 16) | (0x80cdUL << 48); - - /* This is movl $,%eax ; int $0x80 */ - *sr = 0xb8 | (__IA32_NR_rt_sigreturn << 8) | (0x80cdUL << 40); -} - -void -ia32_mem_init(void) -{ - ia32_boot_gdt_init(); - ia32_gate_page_init(); -} - -/* - * Handle bad IA32 interrupt via syscall - */ -void -ia32_bad_interrupt (unsigned long int_num, struct pt_regs *regs) -{ - siginfo_t siginfo; - - if (die_if_kernel("Bad IA-32 interrupt", regs, int_num)) - return; - - siginfo.si_signo = SIGTRAP; - siginfo.si_errno = int_num; /* XXX is it OK to abuse si_errno like this? */ - siginfo.si_flags = 0; - siginfo.si_isr = 0; - siginfo.si_addr = NULL; - siginfo.si_imm = 0; - siginfo.si_code = TRAP_BRKPT; - force_sig_info(SIGTRAP, &siginfo, current); -} - -void -ia32_cpu_init (void) -{ - /* initialize global ia32 state - CR0 and CR4 */ - ia64_setreg(_IA64_REG_AR_CFLAG, (((ulong) IA32_CR4 << 32) | IA32_CR0)); -} - -static int __init -ia32_init (void) -{ -#if PAGE_SHIFT > IA32_PAGE_SHIFT - { - extern struct kmem_cache *ia64_partial_page_cachep; - - ia64_partial_page_cachep = kmem_cache_create("ia64_partial_page_cache", - sizeof(struct ia64_partial_page), - 0, SLAB_PANIC, NULL); - } -#endif - return 0; -} - -__initcall(ia32_init); diff --git a/arch/ia64/ia32/ia32_traps.c b/arch/ia64/ia32/ia32_traps.c deleted file mode 100644 index e486042672f..00000000000 --- a/arch/ia64/ia32/ia32_traps.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * IA-32 exception handlers - * - * Copyright (C) 2000 Asit K. Mallick <asit.k.mallick@intel.com> - * Copyright (C) 2001-2002 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * - * 06/16/00 A. Mallick added siginfo for most cases (close to IA32) - * 09/29/00 D. Mosberger added ia32_intercept() - */ - -#include <linux/kernel.h> -#include <linux/sched.h> - -#include "ia32priv.h" - -#include <asm/intrinsics.h> -#include <asm/ptrace.h> - -int -ia32_intercept (struct pt_regs *regs, unsigned long isr) -{ - switch ((isr >> 16) & 0xff) { - case 0: /* Instruction intercept fault */ - case 4: /* Locked Data reference fault */ - case 1: /* Gate intercept trap */ - return -1; - - case 2: /* System flag trap */ - if (((isr >> 14) & 0x3) >= 2) { - /* MOV SS, POP SS instructions */ - ia64_psr(regs)->id = 1; - return 0; - } else - return -1; - } - return -1; -} - -int -ia32_exception (struct pt_regs *regs, unsigned long isr) -{ - struct siginfo siginfo; - - /* initialize these fields to avoid leaking kernel bits to user space: */ - siginfo.si_errno = 0; - siginfo.si_flags = 0; - siginfo.si_isr = 0; - siginfo.si_imm = 0; - switch ((isr >> 16) & 0xff) { - case 1: - case 2: - siginfo.si_signo = SIGTRAP; - if (isr == 0) - siginfo.si_code = TRAP_TRACE; - else if (isr & 0x4) - siginfo.si_code = TRAP_BRANCH; - else - siginfo.si_code = TRAP_BRKPT; - break; - - case 3: - siginfo.si_signo = SIGTRAP; - siginfo.si_code = TRAP_BRKPT; - break; - - case 0: /* Divide fault */ - siginfo.si_signo = SIGFPE; - siginfo.si_code = FPE_INTDIV; - break; - - case 4: /* Overflow */ - case 5: /* Bounds fault */ - siginfo.si_signo = SIGFPE; - siginfo.si_code = 0; - break; - - case 6: /* Invalid Op-code */ - siginfo.si_signo = SIGILL; - siginfo.si_code = ILL_ILLOPN; - break; - - case 7: /* FP DNA */ - case 8: /* Double Fault */ - case 9: /* Invalid TSS */ - case 11: /* Segment not present */ - case 12: /* Stack fault */ - case 13: /* General Protection Fault */ - siginfo.si_signo = SIGSEGV; - siginfo.si_code = 0; - break; - - case 16: /* Pending FP error */ - { - unsigned long fsr, fcr; - - fsr = ia64_getreg(_IA64_REG_AR_FSR); - fcr = ia64_getreg(_IA64_REG_AR_FCR); - - siginfo.si_signo = SIGFPE; - /* - * (~cwd & swd) will mask out exceptions that are not set to unmasked - * status. 0x3f is the exception bits in these regs, 0x200 is the - * C1 reg you need in case of a stack fault, 0x040 is the stack - * fault bit. We should only be taking one exception at a time, - * so if this combination doesn't produce any single exception, - * then we have a bad program that isn't synchronizing its FPU usage - * and it will suffer the consequences since we won't be able to - * fully reproduce the context of the exception - */ - siginfo.si_isr = isr; - siginfo.si_flags = __ISR_VALID; - switch(((~fcr) & (fsr & 0x3f)) | (fsr & 0x240)) { - case 0x000: - default: - siginfo.si_code = 0; - break; - case 0x001: /* Invalid Op */ - case 0x040: /* Stack Fault */ - case 0x240: /* Stack Fault | Direction */ - siginfo.si_code = FPE_FLTINV; - break; - case 0x002: /* Denormalize */ - case 0x010: /* Underflow */ - siginfo.si_code = FPE_FLTUND; - break; - case 0x004: /* Zero Divide */ - siginfo.si_code = FPE_FLTDIV; - break; - case 0x008: /* Overflow */ - siginfo.si_code = FPE_FLTOVF; - break; - case 0x020: /* Precision */ - siginfo.si_code = FPE_FLTRES; - break; - } - - break; - } - - case 17: /* Alignment check */ - siginfo.si_signo = SIGSEGV; - siginfo.si_code = BUS_ADRALN; - break; - - case 19: /* SSE Numeric error */ - siginfo.si_signo = SIGFPE; - siginfo.si_code = 0; - break; - - default: - return -1; - } - force_sig_info(siginfo.si_signo, &siginfo, current); - return 0; -} diff --git a/arch/ia64/ia32/ia32priv.h b/arch/ia64/ia32/ia32priv.h deleted file mode 100644 index 0f15349c3c6..00000000000 --- a/arch/ia64/ia32/ia32priv.h +++ /dev/null @@ -1,532 +0,0 @@ -#ifndef _ASM_IA64_IA32_PRIV_H -#define _ASM_IA64_IA32_PRIV_H - - -#include <asm/ia32.h> - -#ifdef CONFIG_IA32_SUPPORT - -#include <linux/binfmts.h> -#include <linux/compat.h> -#include <linux/rbtree.h> - -#include <asm/processor.h> - -/* - * 32 bit structures for IA32 support. - */ - -#define IA32_PAGE_SIZE (1UL << IA32_PAGE_SHIFT) -#define IA32_PAGE_MASK (~(IA32_PAGE_SIZE - 1)) -#define IA32_PAGE_ALIGN(addr) (((addr) + IA32_PAGE_SIZE - 1) & IA32_PAGE_MASK) -#define IA32_CLOCKS_PER_SEC 100 /* Cast in stone for IA32 Linux */ - -/* - * partially mapped pages provide precise accounting of which 4k sub pages - * are mapped and which ones are not, thereby improving IA-32 compatibility. - */ -struct ia64_partial_page { - struct ia64_partial_page *next; /* linked list, sorted by address */ - struct rb_node pp_rb; - /* 64K is the largest "normal" page supported by ia64 ABI. So 4K*64 - * should suffice.*/ - unsigned long bitmap; - unsigned int base; -}; - -struct ia64_partial_page_list { - struct ia64_partial_page *pp_head; /* list head, points to the lowest - * addressed partial page */ - struct rb_root ppl_rb; - struct ia64_partial_page *pp_hint; /* pp_hint->next is the last - * accessed partial page */ - atomic_t pp_count; /* reference count */ -}; - -#if PAGE_SHIFT > IA32_PAGE_SHIFT -struct ia64_partial_page_list* ia32_init_pp_list (void); -#else -# define ia32_init_pp_list() 0 -#endif - -/* sigcontext.h */ -/* - * As documented in the iBCS2 standard.. - * - * The first part of "struct _fpstate" is just the - * normal i387 hardware setup, the extra "status" - * word is used to save the coprocessor status word - * before entering the handler. - */ -struct _fpreg_ia32 { - unsigned short significand[4]; - unsigned short exponent; -}; - -struct _fpxreg_ia32 { - unsigned short significand[4]; - unsigned short exponent; - unsigned short padding[3]; -}; - -struct _xmmreg_ia32 { - unsigned int element[4]; -}; - - -struct _fpstate_ia32 { - unsigned int cw, - sw, - tag, - ipoff, - cssel, - dataoff, - datasel; - struct _fpreg_ia32 _st[8]; - unsigned short status; - unsigned short magic; /* 0xffff = regular FPU data only */ - - /* FXSR FPU environment */ - unsigned int _fxsr_env[6]; /* FXSR FPU env is ignored */ - unsigned int mxcsr; - unsigned int reserved; - struct _fpxreg_ia32 _fxsr_st[8]; /* FXSR FPU reg data is ignored */ - struct _xmmreg_ia32 _xmm[8]; - unsigned int padding[56]; -}; - -struct sigcontext_ia32 { - unsigned short gs, __gsh; - unsigned short fs, __fsh; - unsigned short es, __esh; - unsigned short ds, __dsh; - unsigned int edi; - unsigned int esi; - unsigned int ebp; - unsigned int esp; - unsigned int ebx; - unsigned int edx; - unsigned int ecx; - unsigned int eax; - unsigned int trapno; - unsigned int err; - unsigned int eip; - unsigned short cs, __csh; - unsigned int eflags; - unsigned int esp_at_signal; - unsigned short ss, __ssh; - unsigned int fpstate; /* really (struct _fpstate_ia32 *) */ - unsigned int oldmask; - unsigned int cr2; -}; - -/* user.h */ -/* - * IA32 (Pentium III/4) FXSR, SSE support - * - * Provide support for the GDB 5.0+ PTRACE_{GET|SET}FPXREGS requests for - * interacting with the FXSR-format floating point environment. Floating - * point data can be accessed in the regular format in the usual manner, - * and both the standard and SIMD floating point data can be accessed via - * the new ptrace requests. In either case, changes to the FPU environment - * will be reflected in the task's state as expected. - */ -struct ia32_user_i387_struct { - int cwd; - int swd; - int twd; - int fip; - int fcs; - int foo; - int fos; - /* 8*10 bytes for each FP-reg = 80 bytes */ - struct _fpreg_ia32 st_space[8]; -}; - -struct ia32_user_fxsr_struct { - unsigned short cwd; - unsigned short swd; - unsigned short twd; - unsigned short fop; - int fip; - int fcs; - int foo; - int fos; - int mxcsr; - int reserved; - int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */ - int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */ - int padding[56]; -}; - -/* signal.h */ -#define IA32_SET_SA_HANDLER(ka,handler,restorer) \ - ((ka)->sa.sa_handler = (__sighandler_t) \ - (((unsigned long)(restorer) << 32) \ - | ((handler) & 0xffffffff))) -#define IA32_SA_HANDLER(ka) ((unsigned long) (ka)->sa.sa_handler & 0xffffffff) -#define IA32_SA_RESTORER(ka) ((unsigned long) (ka)->sa.sa_handler >> 32) - -#define __IA32_NR_sigreturn 119 -#define __IA32_NR_rt_sigreturn 173 - -struct sigaction32 { - unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */ - unsigned int sa_flags; - unsigned int sa_restorer; /* Another 32 bit pointer */ - compat_sigset_t sa_mask; /* A 32 bit mask */ -}; - -struct old_sigaction32 { - unsigned int sa_handler; /* Really a pointer, but need to deal - with 32 bits */ - compat_old_sigset_t sa_mask; /* A 32 bit mask */ - unsigned int sa_flags; - unsigned int sa_restorer; /* Another 32 bit pointer */ -}; - -typedef struct sigaltstack_ia32 { - unsigned int ss_sp; - int ss_flags; - unsigned int ss_size; -} stack_ia32_t; - -struct ucontext_ia32 { - unsigned int uc_flags; - unsigned int uc_link; - stack_ia32_t uc_stack; - struct sigcontext_ia32 uc_mcontext; - sigset_t uc_sigmask; /* mask last for extensibility */ -}; - -struct stat64 { - unsigned long long st_dev; - unsigned char __pad0[4]; - unsigned int __st_ino; - unsigned int st_mode; - unsigned int st_nlink; - unsigned int st_uid; - unsigned int st_gid; - unsigned long long st_rdev; - unsigned char __pad3[4]; - unsigned int st_size_lo; - unsigned int st_size_hi; - unsigned int st_blksize; - unsigned int st_blocks; /* Number 512-byte blocks allocated. */ - unsigned int __pad4; /* future possible st_blocks high bits */ - unsigned int st_atime; - unsigned int st_atime_nsec; - unsigned int st_mtime; - unsigned int st_mtime_nsec; - unsigned int st_ctime; - unsigned int st_ctime_nsec; - unsigned int st_ino_lo; - unsigned int st_ino_hi; -}; - -typedef struct compat_siginfo { - int si_signo; - int si_errno; - int si_code; - - union { - int _pad[((128/sizeof(int)) - 3)]; - - /* kill() */ - struct { - unsigned int _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - } _kill; - - /* POSIX.1b timers */ - struct { - compat_timer_t _tid; /* timer id */ - int _overrun; /* overrun count */ - char _pad[sizeof(unsigned int) - sizeof(int)]; - compat_sigval_t _sigval; /* same as below */ - int _sys_private; /* not to be passed to user */ - } _timer; - - /* POSIX.1b signals */ - struct { - unsigned int _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - compat_sigval_t _sigval; - } _rt; - - /* SIGCHLD */ - struct { - unsigned int _pid; /* which child */ - unsigned int _uid; /* sender's uid */ - int _status; /* exit code */ - compat_clock_t _utime; - compat_clock_t _stime; - } _sigchld; - - /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ - struct { - unsigned int _addr; /* faulting insn/memory ref. */ - } _sigfault; - - /* SIGPOLL */ - struct { - int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ - int _fd; - } _sigpoll; - } _sifields; -} compat_siginfo_t; - -/* - * IA-32 ELF specific definitions for IA-64. - */ - -#define _ASM_IA64_ELF_H /* Don't include elf.h */ - -#include <linux/sched.h> - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) ((x)->e_machine == EM_386) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_386 - -#define IA32_STACK_TOP IA32_PAGE_OFFSET -#define IA32_GATE_OFFSET IA32_PAGE_OFFSET -#define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE - -/* - * The system segments (GDT, TSS, LDT) have to be mapped below 4GB so the IA-32 engine can - * access them. - */ -#define IA32_GDT_OFFSET (IA32_PAGE_OFFSET + PAGE_SIZE) -#define IA32_TSS_OFFSET (IA32_PAGE_OFFSET + 2*PAGE_SIZE) -#define IA32_LDT_OFFSET (IA32_PAGE_OFFSET + 3*PAGE_SIZE) - -#define ELF_EXEC_PAGESIZE IA32_PAGE_SIZE - -/* - * This is the location that an ET_DYN program is loaded if exec'ed. - * Typical use of this is to invoke "./ld.so someprog" to test out a - * new version of the loader. We need to make sure that it is out of - * the way of the program that it will "exec", and that there is - * sufficient room for the brk. - */ -#define ELF_ET_DYN_BASE (IA32_PAGE_OFFSET/3 + 0x1000000) - -void ia64_elf32_init(struct pt_regs *regs); -#define ELF_PLAT_INIT(_r, load_addr) ia64_elf32_init(_r) - -/* This macro yields a bitmask that programs can use to figure out - what instruction set this CPU supports. */ -#define ELF_HWCAP 0 - -/* This macro yields a string that ld.so will use to load - implementation specific libraries for optimization. Not terribly - relevant until we have real hardware to play with... */ -#define ELF_PLATFORM NULL - -#ifdef __KERNEL__ -# define SET_PERSONALITY(EX) \ - (current->personality = PER_LINUX) -#endif - -#define IA32_EFLAG 0x200 - -/* - * IA-32 ELF specific definitions for IA-64. - */ - -#define __USER_CS 0x23 -#define __USER_DS 0x2B - -/* - * The per-cpu GDT has 32 entries: see <asm-i386/segment.h> - */ -#define GDT_ENTRIES 32 - -#define GDT_SIZE (GDT_ENTRIES * 8) - -#define TSS_ENTRY 14 -#define LDT_ENTRY (TSS_ENTRY + 1) - -#define IA32_SEGSEL_RPL (0x3 << 0) -#define IA32_SEGSEL_TI (0x1 << 2) -#define IA32_SEGSEL_INDEX_SHIFT 3 - -#define _TSS ((unsigned long) TSS_ENTRY << IA32_SEGSEL_INDEX_SHIFT) -#define _LDT ((unsigned long) LDT_ENTRY << IA32_SEGSEL_INDEX_SHIFT) - -#define IA32_SEG_BASE 16 -#define IA32_SEG_TYPE 40 -#define IA32_SEG_SYS 44 -#define IA32_SEG_DPL 45 -#define IA32_SEG_P 47 -#define IA32_SEG_HIGH_LIMIT 48 -#define IA32_SEG_AVL 52 -#define IA32_SEG_DB 54 -#define IA32_SEG_G 55 -#define IA32_SEG_HIGH_BASE 56 - -#define IA32_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, avl, segdb, gran) \ - (((limit) & 0xffff) \ - | (((unsigned long) (base) & 0xffffff) << IA32_SEG_BASE) \ - | ((unsigned long) (segtype) << IA32_SEG_TYPE) \ - | ((unsigned long) (nonsysseg) << IA32_SEG_SYS) \ - | ((unsigned long) (dpl) << IA32_SEG_DPL) \ - | ((unsigned long) (segpresent) << IA32_SEG_P) \ - | ((((unsigned long) (limit) >> 16) & 0xf) << IA32_SEG_HIGH_LIMIT) \ - | ((unsigned long) (avl) << IA32_SEG_AVL) \ - | ((unsigned long) (segdb) << IA32_SEG_DB) \ - | ((unsigned long) (gran) << IA32_SEG_G) \ - | ((((unsigned long) (base) >> 24) & 0xff) << IA32_SEG_HIGH_BASE)) - -#define SEG_LIM 32 -#define SEG_TYPE 52 -#define SEG_SYS 56 -#define SEG_DPL 57 -#define SEG_P 59 -#define SEG_AVL 60 -#define SEG_DB 62 -#define SEG_G 63 - -/* Unscramble an IA-32 segment descriptor into the IA-64 format. */ -#define IA32_SEG_UNSCRAMBLE(sd) \ - ( (((sd) >> IA32_SEG_BASE) & 0xffffff) | ((((sd) >> IA32_SEG_HIGH_BASE) & 0xff) << 24) \ - | ((((sd) & 0xffff) | ((((sd) >> IA32_SEG_HIGH_LIMIT) & 0xf) << 16)) << SEG_LIM) \ - | ((((sd) >> IA32_SEG_TYPE) & 0xf) << SEG_TYPE) \ - | ((((sd) >> IA32_SEG_SYS) & 0x1) << SEG_SYS) \ - | ((((sd) >> IA32_SEG_DPL) & 0x3) << SEG_DPL) \ - | ((((sd) >> IA32_SEG_P) & 0x1) << SEG_P) \ - | ((((sd) >> IA32_SEG_AVL) & 0x1) << SEG_AVL) \ - | ((((sd) >> IA32_SEG_DB) & 0x1) << SEG_DB) \ - | ((((sd) >> IA32_SEG_G) & 0x1) << SEG_G)) - -#define IA32_IOBASE 0x2000000000000000UL /* Virtual address for I/O space */ - -#define IA32_CR0 0x80000001 /* Enable PG and PE bits */ -#define IA32_CR4 0x600 /* MMXEX and FXSR on */ - -/* - * IA32 floating point control registers starting values - */ - -#define IA32_FSR_DEFAULT 0x55550000 /* set all tag bits */ -#define IA32_FCR_DEFAULT 0x17800000037fUL /* extended precision, all masks */ - -#define IA32_PTRACE_GETREGS 12 -#define IA32_PTRACE_SETREGS 13 -#define IA32_PTRACE_GETFPREGS 14 -#define IA32_PTRACE_SETFPREGS 15 -#define IA32_PTRACE_GETFPXREGS 18 -#define IA32_PTRACE_SETFPXREGS 19 - -#define ia32_start_thread(regs,new_ip,new_sp) do { \ - set_fs(USER_DS); \ - ia64_psr(regs)->cpl = 3; /* set user mode */ \ - ia64_psr(regs)->ri = 0; /* clear return slot number */ \ - ia64_psr(regs)->is = 1; /* IA-32 instruction set */ \ - regs->cr_iip = new_ip; \ - regs->ar_rsc = 0xc; /* enforced lazy mode, priv. level 3 */ \ - regs->ar_rnat = 0; \ - regs->loadrs = 0; \ - regs->r12 = new_sp; \ -} while (0) - -/* - * Local Descriptor Table (LDT) related declarations. - */ - -#define IA32_LDT_ENTRIES 8192 /* Maximum number of LDT entries supported. */ -#define IA32_LDT_ENTRY_SIZE 8 /* The size of each LDT entry. */ - -#define LDT_entry_a(info) \ - ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) - -#define LDT_entry_b(info) \ - (((info)->base_addr & 0xff000000) | \ - (((info)->base_addr & 0x00ff0000) >> 16) | \ - ((info)->limit & 0xf0000) | \ - (((info)->read_exec_only ^ 1) << 9) | \ - ((info)->contents << 10) | \ - (((info)->seg_not_present ^ 1) << 15) | \ - ((info)->seg_32bit << 22) | \ - ((info)->limit_in_pages << 23) | \ - ((info)->useable << 20) | \ - 0x7100) - -#define LDT_empty(info) ( \ - (info)->base_addr == 0 && \ - (info)->limit == 0 && \ - (info)->contents == 0 && \ - (info)->read_exec_only == 1 && \ - (info)->seg_32bit == 0 && \ - (info)->limit_in_pages == 0 && \ - (info)->seg_not_present == 1 && \ - (info)->useable == 0 ) - -static inline void -load_TLS (struct thread_struct *t, unsigned int cpu) -{ - extern unsigned long *cpu_gdt_table[NR_CPUS]; - - memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 0, &t->tls_array[0], sizeof(long)); - memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 1, &t->tls_array[1], sizeof(long)); - memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 2, &t->tls_array[2], sizeof(long)); -} - -struct ia32_user_desc { - unsigned int entry_number; - unsigned int base_addr; - unsigned int limit; - unsigned int seg_32bit:1; - unsigned int contents:2; - unsigned int read_exec_only:1; - unsigned int limit_in_pages:1; - unsigned int seg_not_present:1; - unsigned int useable:1; -}; - -struct linux_binprm; - -extern void ia32_init_addr_space (struct pt_regs *regs); -extern int ia32_setup_arg_pages (struct linux_binprm *bprm, int exec_stack); -extern unsigned long ia32_do_mmap (struct file *, unsigned long, unsigned long, int, int, loff_t); -extern void ia32_load_segment_descriptors (struct task_struct *task); - -#define ia32f2ia64f(dst,src) \ -do { \ - ia64_ldfe(6,src); \ - ia64_stop(); \ - ia64_stf_spill(dst, 6); \ -} while(0) - -#define ia64f2ia32f(dst,src) \ -do { \ - ia64_ldf_fill(6, src); \ - ia64_stop(); \ - ia64_stfe(dst, 6); \ -} while(0) - -struct user_regs_struct32 { - __u32 ebx, ecx, edx, esi, edi, ebp, eax; - unsigned short ds, __ds, es, __es; - unsigned short fs, __fs, gs, __gs; - __u32 orig_eax, eip; - unsigned short cs, __cs; - __u32 eflags, esp; - unsigned short ss, __ss; -}; - -/* Prototypes for use in elfcore32.h */ -extern int save_ia32_fpstate (struct task_struct *, struct ia32_user_i387_struct __user *); -extern int save_ia32_fpxstate (struct task_struct *, struct ia32_user_fxsr_struct __user *); - -#endif /* !CONFIG_IA32_SUPPORT */ - -#endif /* _ASM_IA64_IA32_PRIV_H */ diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c deleted file mode 100644 index 045b746b980..00000000000 --- a/arch/ia64/ia32/sys_ia32.c +++ /dev/null @@ -1,2765 +0,0 @@ -/* - * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Derived from sys_sparc32.c. - * - * Copyright (C) 2000 VA Linux Co - * Copyright (C) 2000 Don Dugger <n0ano@valinux.com> - * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> - * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 2000-2003, 2005 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * Copyright (C) 2004 Gordon Jin <gordon.jin@intel.com> - * - * These routines maintain argument size conversion between 32bit and 64bit - * environment. - */ - -#include <linux/kernel.h> -#include <linux/syscalls.h> -#include <linux/sysctl.h> -#include <linux/sched.h> -#include <linux/fs.h> -#include <linux/file.h> -#include <linux/signal.h> -#include <linux/resource.h> -#include <linux/times.h> -#include <linux/utsname.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/mm.h> -#include <linux/shm.h> -#include <linux/slab.h> -#include <linux/uio.h> -#include <linux/socket.h> -#include <linux/quota.h> -#include <linux/poll.h> -#include <linux/eventpoll.h> -#include <linux/personality.h> -#include <linux/ptrace.h> -#include <linux/regset.h> -#include <linux/stat.h> -#include <linux/ipc.h> -#include <linux/capability.h> -#include <linux/compat.h> -#include <linux/vfs.h> -#include <linux/mman.h> -#include <linux/mutex.h> - -#include <asm/intrinsics.h> -#include <asm/types.h> -#include <asm/uaccess.h> -#include <asm/unistd.h> - -#include "ia32priv.h" - -#include <net/scm.h> -#include <net/sock.h> - -#define DEBUG 0 - -#if DEBUG -# define DBG(fmt...) printk(KERN_DEBUG fmt) -#else -# define DBG(fmt...) -#endif - -#define ROUND_UP(x,a) ((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1))) - -#define OFFSET4K(a) ((a) & 0xfff) -#define PAGE_START(addr) ((addr) & PAGE_MASK) -#define MINSIGSTKSZ_IA32 2048 - -#define high2lowuid(uid) ((uid) > 65535 ? 65534 : (uid)) -#define high2lowgid(gid) ((gid) > 65535 ? 65534 : (gid)) - -/* - * Anything that modifies or inspects ia32 user virtual memory must hold this semaphore - * while doing so. - */ -/* XXX make per-mm: */ -static DEFINE_MUTEX(ia32_mmap_mutex); - -asmlinkage long -sys32_execve (char __user *name, compat_uptr_t __user *argv, compat_uptr_t __user *envp, - struct pt_regs *regs) -{ - long error; - char *filename; - unsigned long old_map_base, old_task_size, tssd; - - filename = getname(name); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - return error; - - old_map_base = current->thread.map_base; - old_task_size = current->thread.task_size; - tssd = ia64_get_kr(IA64_KR_TSSD); - - /* we may be exec'ing a 64-bit process: reset map base, task-size, and io-base: */ - current->thread.map_base = DEFAULT_MAP_BASE; - current->thread.task_size = DEFAULT_TASK_SIZE; - ia64_set_kr(IA64_KR_IO_BASE, current->thread.old_iob); - ia64_set_kr(IA64_KR_TSSD, current->thread.old_k1); - - error = compat_do_execve(filename, argv, envp, regs); - putname(filename); - - if (error < 0) { - /* oops, execve failed, switch back to old values... */ - ia64_set_kr(IA64_KR_IO_BASE, IA32_IOBASE); - ia64_set_kr(IA64_KR_TSSD, tssd); - current->thread.map_base = old_map_base; - current->thread.task_size = old_task_size; - } - - return error; -} - - -#if PAGE_SHIFT > IA32_PAGE_SHIFT - - -static int -get_page_prot (struct vm_area_struct *vma, unsigned long addr) -{ - int prot = 0; - - if (!vma || vma->vm_start > addr) - return 0; - - if (vma->vm_flags & VM_READ) - prot |= PROT_READ; - if (vma->vm_flags & VM_WRITE) - prot |= PROT_WRITE; - if (vma->vm_flags & VM_EXEC) - prot |= PROT_EXEC; - return prot; -} - -/* - * Map a subpage by creating an anonymous page that contains the union of the old page and - * the subpage. - */ -static unsigned long -mmap_subpage (struct file *file, unsigned long start, unsigned long end, int prot, int flags, - loff_t off) -{ - void *page = NULL; - struct inode *inode; - unsigned long ret = 0; - struct vm_area_struct *vma = find_vma(current->mm, start); - int old_prot = get_page_prot(vma, start); - - DBG("mmap_subpage(file=%p,start=0x%lx,end=0x%lx,prot=%x,flags=%x,off=0x%llx)\n", - file, start, end, prot, flags, off); - - - /* Optimize the case where the old mmap and the new mmap are both anonymous */ - if ((old_prot & PROT_WRITE) && (flags & MAP_ANONYMOUS) && !vma->vm_file) { - if (clear_user((void __user *) start, end - start)) { - ret = -EFAULT; - goto out; - } - goto skip_mmap; - } - - page = (void *) get_zeroed_page(GFP_KERNEL); - if (!page) - return -ENOMEM; - - if (old_prot) - copy_from_user(page, (void __user *) PAGE_START(start), PAGE_SIZE); - - down_write(¤t->mm->mmap_sem); - { - ret = do_mmap(NULL, PAGE_START(start), PAGE_SIZE, prot | PROT_WRITE, - flags | MAP_FIXED | MAP_ANONYMOUS, 0); - } - up_write(¤t->mm->mmap_sem); - - if (IS_ERR((void *) ret)) - goto out; - - if (old_prot) { - /* copy back the old page contents. */ - if (offset_in_page(start)) - copy_to_user((void __user *) PAGE_START(start), page, - offset_in_page(start)); - if (offset_in_page(end)) - copy_to_user((void __user *) end, page + offset_in_page(end), - PAGE_SIZE - offset_in_page(end)); - } - - if (!(flags & MAP_ANONYMOUS)) { - /* read the file contents */ - inode = file->f_path.dentry->d_inode; - if (!inode->i_fop || !file->f_op->read - || ((*file->f_op->read)(file, (char __user *) start, end - start, &off) < 0)) - { - ret = -EINVAL; - goto out; - } - } - - skip_mmap: - if (!(prot & PROT_WRITE)) - ret = sys_mprotect(PAGE_START(start), PAGE_SIZE, prot | old_prot); - out: - if (page) - free_page((unsigned long) page); - return ret; -} - -/* SLAB cache for ia64_partial_page structures */ -struct kmem_cache *ia64_partial_page_cachep; - -/* - * init ia64_partial_page_list. - * return 0 means kmalloc fail. - */ -struct ia64_partial_page_list* -ia32_init_pp_list(void) -{ - struct ia64_partial_page_list *p; - - if ((p = kmalloc(sizeof(*p), GFP_KERNEL)) == NULL) - return p; - p->pp_head = NULL; - p->ppl_rb = RB_ROOT; - p->pp_hint = NULL; - atomic_set(&p->pp_count, 1); - return p; -} - -/* - * Search for the partial page with @start in partial page list @ppl. - * If finds the partial page, return the found partial page. - * Else, return 0 and provide @pprev, @rb_link, @rb_parent to - * be used by later __ia32_insert_pp(). - */ -static struct ia64_partial_page * -__ia32_find_pp(struct ia64_partial_page_list *ppl, unsigned int start, - struct ia64_partial_page **pprev, struct rb_node ***rb_link, - struct rb_node **rb_parent) -{ - struct ia64_partial_page *pp; - struct rb_node **__rb_link, *__rb_parent, *rb_prev; - - pp = ppl->pp_hint; - if (pp && pp->base == start) - return pp; - - __rb_link = &ppl->ppl_rb.rb_node; - rb_prev = __rb_parent = NULL; - - while (*__rb_link) { - __rb_parent = *__rb_link; - pp = rb_entry(__rb_parent, struct ia64_partial_page, pp_rb); - - if (pp->base == start) { - ppl->pp_hint = pp; - return pp; - } else if (pp->base < start) { - rb_prev = __rb_parent; - __rb_link = &__rb_parent->rb_right; - } else { - __rb_link = &__rb_parent->rb_left; - } - } - - *rb_link = __rb_link; - *rb_parent = __rb_parent; - *pprev = NULL; - if (rb_prev) - *pprev = rb_entry(rb_prev, struct ia64_partial_page, pp_rb); - return NULL; -} - -/* - * insert @pp into @ppl. - */ -static void -__ia32_insert_pp(struct ia64_partial_page_list *ppl, - struct ia64_partial_page *pp, struct ia64_partial_page *prev, - struct rb_node **rb_link, struct rb_node *rb_parent) -{ - /* link list */ - if (prev) { - pp->next = prev->next; - prev->next = pp; - } else { - ppl->pp_head = pp; - if (rb_parent) - pp->next = rb_entry(rb_parent, - struct ia64_partial_page, pp_rb); - else - pp->next = NULL; - } - - /* link rb */ - rb_link_node(&pp->pp_rb, rb_parent, rb_link); - rb_insert_color(&pp->pp_rb, &ppl->ppl_rb); - - ppl->pp_hint = pp; -} - -/* - * delete @pp from partial page list @ppl. - */ -static void -__ia32_delete_pp(struct ia64_partial_page_list *ppl, - struct ia64_partial_page *pp, struct ia64_partial_page *prev) -{ - if (prev) { - prev->next = pp->next; - if (ppl->pp_hint == pp) - ppl->pp_hint = prev; - } else { - ppl->pp_head = pp->next; - if (ppl->pp_hint == pp) - ppl->pp_hint = pp->next; - } - rb_erase(&pp->pp_rb, &ppl->ppl_rb); - kmem_cache_free(ia64_partial_page_cachep, pp); -} - -static struct ia64_partial_page * -__pp_prev(struct ia64_partial_page *pp) -{ - struct rb_node *prev = rb_prev(&pp->pp_rb); - if (prev) - return rb_entry(prev, struct ia64_partial_page, pp_rb); - else - return NULL; -} - -/* - * Delete partial pages with address between @start and @end. - * @start and @end are page aligned. - */ -static void -__ia32_delete_pp_range(unsigned int start, unsigned int end) -{ - struct ia64_partial_page *pp, *prev; - struct rb_node **rb_link, *rb_parent; - - if (start >= end) - return; - - pp = __ia32_find_pp(current->thread.ppl, start, &prev, - &rb_link, &rb_parent); - if (pp) - prev = __pp_prev(pp); - else { - if (prev) - pp = prev->next; - else - pp = current->thread.ppl->pp_head; - } - - while (pp && pp->base < end) { - struct ia64_partial_page *tmp = pp->next; - __ia32_delete_pp(current->thread.ppl, pp, prev); - pp = tmp; - } -} - -/* - * Set the range between @start and @end in bitmap. - * @start and @end should be IA32 page aligned and in the same IA64 page. - */ -static int -__ia32_set_pp(unsigned int start, unsigned int end, int flags) -{ - struct ia64_partial_page *pp, *prev; - struct rb_node ** rb_link, *rb_parent; - unsigned int pstart, start_bit, end_bit, i; - - pstart = PAGE_START(start); - start_bit = (start % PAGE_SIZE) / IA32_PAGE_SIZE; - end_bit = (end % PAGE_SIZE) / IA32_PAGE_SIZE; - if (end_bit == 0) - end_bit = PAGE_SIZE / IA32_PAGE_SIZE; - pp = __ia32_find_pp(current->thread.ppl, pstart, &prev, - &rb_link, &rb_parent); - if (pp) { - for (i = start_bit; i < end_bit; i++) - set_bit(i, &pp->bitmap); - /* - * Check: if this partial page has been set to a full page, - * then delete it. - */ - if (find_first_zero_bit(&pp->bitmap, sizeof(pp->bitmap)*8) >= - PAGE_SIZE/IA32_PAGE_SIZE) { - __ia32_delete_pp(current->thread.ppl, pp, __pp_prev(pp)); - } - return 0; - } - - /* - * MAP_FIXED may lead to overlapping mmap. - * In this case, the requested mmap area may already mmaped as a full - * page. So check vma before adding a new partial page. - */ - if (flags & MAP_FIXED) { - struct vm_area_struct *vma = find_vma(current->mm, pstart); - if (vma && vma->vm_start <= pstart) - return 0; - } - - /* new a ia64_partial_page */ - pp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL); - if (!pp) - return -ENOMEM; - pp->base = pstart; - pp->bitmap = 0; - for (i=start_bit; i<end_bit; i++) - set_bit(i, &(pp->bitmap)); - pp->next = NULL; - __ia32_insert_pp(current->thread.ppl, pp, prev, rb_link, rb_parent); - return 0; -} - -/* - * @start and @end should be IA32 page aligned, but don't need to be in the - * same IA64 page. Split @start and @end to make sure they're in the same IA64 - * page, then call __ia32_set_pp(). - */ -static void -ia32_set_pp(unsigned int start, unsigned int end, int flags) -{ - down_write(¤t->mm->mmap_sem); - if (flags & MAP_FIXED) { - /* - * MAP_FIXED may lead to overlapping mmap. When this happens, - * a series of complete IA64 pages results in deletion of - * old partial pages in that range. - */ - __ia32_delete_pp_range(PAGE_ALIGN(start), PAGE_START(end)); - } - - if (end < PAGE_ALIGN(start)) { - __ia32_set_pp(start, end, flags); - } else { - if (offset_in_page(start)) - __ia32_set_pp(start, PAGE_ALIGN(start), flags); - if (offset_in_page(end)) - __ia32_set_pp(PAGE_START(end), end, flags); - } - up_write(¤t->mm->mmap_sem); -} - -/* - * Unset the range between @start and @end in bitmap. - * @start and @end should be IA32 page aligned and in the same IA64 page. - * After doing that, if the bitmap is 0, then free the page and return 1, - * else return 0; - * If not find the partial page in the list, then - * If the vma exists, then the full page is set to a partial page; - * Else return -ENOMEM. - */ -static int -__ia32_unset_pp(unsigned int start, unsigned int end) -{ - struct ia64_partial_page *pp, *prev; - struct rb_node ** rb_link, *rb_parent; - unsigned int pstart, start_bit, end_bit, i; - struct vm_area_struct *vma; - - pstart = PAGE_START(start); - start_bit = (start % PAGE_SIZE) / IA32_PAGE_SIZE; - end_bit = (end % PAGE_SIZE) / IA32_PAGE_SIZE; - if (end_bit == 0) - end_bit = PAGE_SIZE / IA32_PAGE_SIZE; - - pp = __ia32_find_pp(current->thread.ppl, pstart, &prev, - &rb_link, &rb_parent); - if (pp) { - for (i = start_bit; i < end_bit; i++) - clear_bit(i, &pp->bitmap); - if (pp->bitmap == 0) { - __ia32_delete_pp(current->thread.ppl, pp, __pp_prev(pp)); - return 1; - } - return 0; - } - - vma = find_vma(current->mm, pstart); - if (!vma || vma->vm_start > pstart) { - return -ENOMEM; - } - - /* new a ia64_partial_page */ - pp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL); - if (!pp) - return -ENOMEM; - pp->base = pstart; - pp->bitmap = 0; - for (i = 0; i < start_bit; i++) - set_bit(i, &(pp->bitmap)); - for (i = end_bit; i < PAGE_SIZE / IA32_PAGE_SIZE; i++) - set_bit(i, &(pp->bitmap)); - pp->next = NULL; - __ia32_insert_pp(current->thread.ppl, pp, prev, rb_link, rb_parent); - return 0; -} - -/* - * Delete pp between PAGE_ALIGN(start) and PAGE_START(end) by calling - * __ia32_delete_pp_range(). Unset possible partial pages by calling - * __ia32_unset_pp(). - * The returned value see __ia32_unset_pp(). - */ -static int -ia32_unset_pp(unsigned int *startp, unsigned int *endp) -{ - unsigned int start = *startp, end = *endp; - int ret = 0; - - down_write(¤t->mm->mmap_sem); - - __ia32_delete_pp_range(PAGE_ALIGN(start), PAGE_START(end)); - - if (end < PAGE_ALIGN(start)) { - ret = __ia32_unset_pp(start, end); - if (ret == 1) { - *startp = PAGE_START(start); - *endp = PAGE_ALIGN(end); - } - if (ret == 0) { - /* to shortcut sys_munmap() in sys32_munmap() */ - *startp = PAGE_START(start); - *endp = PAGE_START(end); - } - } else { - if (offset_in_page(start)) { - ret = __ia32_unset_pp(start, PAGE_ALIGN(start)); - if (ret == 1) - *startp = PAGE_START(start); - if (ret == 0) - *startp = PAGE_ALIGN(start); - if (ret < 0) - goto out; - } - if (offset_in_page(end)) { - ret = __ia32_unset_pp(PAGE_START(end), end); - if (ret == 1) - *endp = PAGE_ALIGN(end); - if (ret == 0) - *endp = PAGE_START(end); - } - } - - out: - up_write(¤t->mm->mmap_sem); - return ret; -} - -/* - * Compare the range between @start and @end with bitmap in partial page. - * @start and @end should be IA32 page aligned and in the same IA64 page. - */ -static int -__ia32_compare_pp(unsigned int start, unsigned int end) -{ - struct ia64_partial_page *pp, *prev; - struct rb_node ** rb_link, *rb_parent; - unsigned int pstart, start_bit, end_bit, size; - unsigned int first_bit, next_zero_bit; /* the first range in bitmap */ - - pstart = PAGE_START(start); - - pp = __ia32_find_pp(current->thread.ppl, pstart, &prev, - &rb_link, &rb_parent); - if (!pp) - return 1; - - start_bit = (start % PAGE_SIZE) / IA32_PAGE_SIZE; - end_bit = (end % PAGE_SIZE) / IA32_PAGE_SIZE; - size = sizeof(pp->bitmap) * 8; - first_bit = find_first_bit(&pp->bitmap, size); - next_zero_bit = find_next_zero_bit(&pp->bitmap, size, first_bit); - if ((start_bit < first_bit) || (end_bit > next_zero_bit)) { - /* exceeds the first range in bitmap */ - return -ENOMEM; - } else if ((start_bit == first_bit) && (end_bit == next_zero_bit)) { - first_bit = find_next_bit(&pp->bitmap, size, next_zero_bit); - if ((next_zero_bit < first_bit) && (first_bit < size)) - return 1; /* has next range */ - else - return 0; /* no next range */ - } else - return 1; -} - -/* - * @start and @end should be IA32 page aligned, but don't need to be in the - * same IA64 page. Split @start and @end to make sure they're in the same IA64 - * page, then call __ia32_compare_pp(). - * - * Take this as example: the range is the 1st and 2nd 4K page. - * Return 0 if they fit bitmap exactly, i.e. bitmap = 00000011; - * Return 1 if the range doesn't cover whole bitmap, e.g. bitmap = 00001111; - * Return -ENOMEM if the range exceeds the bitmap, e.g. bitmap = 00000001 or - * bitmap = 00000101. - */ -static int -ia32_compare_pp(unsigned int *startp, unsigned int *endp) -{ - unsigned int start = *startp, end = *endp; - int retval = 0; - - down_write(¤t->mm->mmap_sem); - - if (end < PAGE_ALIGN(start)) { - retval = __ia32_compare_pp(start, end); - if (retval == 0) { - *startp = PAGE_START(start); - *endp = PAGE_ALIGN(end); - } - } else { - if (offset_in_page(start)) { - retval = __ia32_compare_pp(start, - PAGE_ALIGN(start)); - if (retval == 0) - *startp = PAGE_START(start); - if (retval < 0) - goto out; - } - if (offset_in_page(end)) { - retval = __ia32_compare_pp(PAGE_START(end), end); - if (retval == 0) - *endp = PAGE_ALIGN(end); - } - } - - out: - up_write(¤t->mm->mmap_sem); - return retval; -} - -static void -__ia32_drop_pp_list(struct ia64_partial_page_list *ppl) -{ - struct ia64_partial_page *pp = ppl->pp_head; - - while (pp) { - struct ia64_partial_page *next = pp->next; - kmem_cache_free(ia64_partial_page_cachep, pp); - pp = next; - } - - kfree(ppl); -} - -void -ia32_drop_ia64_partial_page_list(struct task_struct *task) -{ - struct ia64_partial_page_list* ppl = task->thread.ppl; - - if (ppl && atomic_dec_and_test(&ppl->pp_count)) - __ia32_drop_pp_list(ppl); -} - -/* - * Copy current->thread.ppl to ppl (already initialized). - */ -static int -__ia32_copy_pp_list(struct ia64_partial_page_list *ppl) -{ - struct ia64_partial_page *pp, *tmp, *prev; - struct rb_node **rb_link, *rb_parent; - - ppl->pp_head = NULL; - ppl->pp_hint = NULL; - ppl->ppl_rb = RB_ROOT; - rb_link = &ppl->ppl_rb.rb_node; - rb_parent = NULL; - prev = NULL; - - for (pp = current->thread.ppl->pp_head; pp; pp = pp->next) { - tmp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL); - if (!tmp) - return -ENOMEM; - *tmp = *pp; - __ia32_insert_pp(ppl, tmp, prev, rb_link, rb_parent); - prev = tmp; - rb_link = &tmp->pp_rb.rb_right; - rb_parent = &tmp->pp_rb; - } - return 0; -} - -int -ia32_copy_ia64_partial_page_list(struct task_struct *p, - unsigned long clone_flags) -{ - int retval = 0; - - if (clone_flags & CLONE_VM) { - atomic_inc(¤t->thread.ppl->pp_count); - p->thread.ppl = current->thread.ppl; - } else { - p->thread.ppl = ia32_init_pp_list(); - if (!p->thread.ppl) - return -ENOMEM; - down_write(¤t->mm->mmap_sem); - { - retval = __ia32_copy_pp_list(p->thread.ppl); - } - up_write(¤t->mm->mmap_sem); - } - - return retval; -} - -static unsigned long -emulate_mmap (struct file *file, unsigned long start, unsigned long len, int prot, int flags, - loff_t off) -{ - unsigned long tmp, end, pend, pstart, ret, is_congruent, fudge = 0; - struct inode *inode; - loff_t poff; - - end = start + len; - pstart = PAGE_START(start); - pend = PAGE_ALIGN(end); - - if (flags & MAP_FIXED) { - ia32_set_pp((unsigned int)start, (unsigned int)end, flags); - if (start > pstart) { - if (flags & MAP_SHARED) - printk(KERN_INFO - "%s(%d): emulate_mmap() can't share head (addr=0x%lx)\n", - current->comm, task_pid_nr(current), start); - ret = mmap_subpage(file, start, min(PAGE_ALIGN(start), end), prot, flags, - off); - if (IS_ERR((void *) ret)) - return ret; - pstart += PAGE_SIZE; - if (pstart >= pend) - goto out; /* done */ - } - if (end < pend) { - if (flags & MAP_SHARED) - printk(KERN_INFO - "%s(%d): emulate_mmap() can't share tail (end=0x%lx)\n", - current->comm, task_pid_nr(current), end); - ret = mmap_subpage(file, max(start, PAGE_START(end)), end, prot, flags, - (off + len) - offset_in_page(end)); - if (IS_ERR((void *) ret)) - return ret; - pend -= PAGE_SIZE; - if (pstart >= pend) - goto out; /* done */ - } - } else { - /* - * If a start address was specified, use it if the entire rounded out area - * is available. - */ - if (start && !pstart) - fudge = 1; /* handle case of mapping to range (0,PAGE_SIZE) */ - tmp = arch_get_unmapped_area(file, pstart - fudge, pend - pstart, 0, flags); - if (tmp != pstart) { - pstart = tmp; - start = pstart + offset_in_page(off); /* make start congruent with off */ - end = start + len; - pend = PAGE_ALIGN(end); - } - } - - poff = off + (pstart - start); /* note: (pstart - start) may be negative */ - is_congruent = (flags & MAP_ANONYMOUS) || (offset_in_page(poff) == 0); - - if ((flags & MAP_SHARED) && !is_congruent) - printk(KERN_INFO "%s(%d): emulate_mmap() can't share contents of incongruent mmap " - "(addr=0x%lx,off=0x%llx)\n", current->comm, task_pid_nr(current), start, off); - - DBG("mmap_body: mapping [0x%lx-0x%lx) %s with poff 0x%llx\n", pstart, pend, - is_congruent ? "congruent" : "not congruent", poff); - - down_write(¤t->mm->mmap_sem); - { - if (!(flags & MAP_ANONYMOUS) && is_congruent) - ret = do_mmap(file, pstart, pend - pstart, prot, flags | MAP_FIXED, poff); - else - ret = do_mmap(NULL, pstart, pend - pstart, - prot | ((flags & MAP_ANONYMOUS) ? 0 : PROT_WRITE), - flags | MAP_FIXED | MAP_ANONYMOUS, 0); - } - up_write(¤t->mm->mmap_sem); - - if (IS_ERR((void *) ret)) - return ret; - - if (!is_congruent) { - /* read the file contents */ - inode = file->f_path.dentry->d_inode; - if (!inode->i_fop || !file->f_op->read - || ((*file->f_op->read)(file, (char __user *) pstart, pend - pstart, &poff) - < 0)) - { - sys_munmap(pstart, pend - pstart); - return -EINVAL; - } - if (!(prot & PROT_WRITE) && sys_mprotect(pstart, pend - pstart, prot) < 0) - return -EINVAL; - } - - if (!(flags & MAP_FIXED)) - ia32_set_pp((unsigned int)start, (unsigned int)end, flags); -out: - return start; -} - -#endif /* PAGE_SHIFT > IA32_PAGE_SHIFT */ - -static inline unsigned int -get_prot32 (unsigned int prot) -{ - if (prot & PROT_WRITE) - /* on x86, PROT_WRITE implies PROT_READ which implies PROT_EEC */ - prot |= PROT_READ | PROT_WRITE | PROT_EXEC; - else if (prot & (PROT_READ | PROT_EXEC)) - /* on x86, there is no distinction between PROT_READ and PROT_EXEC */ - prot |= (PROT_READ | PROT_EXEC); - - return prot; -} - -unsigned long -ia32_do_mmap (struct file *file, unsigned long addr, unsigned long len, int prot, int flags, - loff_t offset) -{ - DBG("ia32_do_mmap(file=%p,addr=0x%lx,len=0x%lx,prot=%x,flags=%x,offset=0x%llx)\n", - file, addr, len, prot, flags, offset); - - if (file && (!file->f_op || !file->f_op->mmap)) - return -ENODEV; - - len = IA32_PAGE_ALIGN(len); - if (len == 0) - return addr; - - if (len > IA32_PAGE_OFFSET || addr > IA32_PAGE_OFFSET - len) - { - if (flags & MAP_FIXED) - return -ENOMEM; - else - return -EINVAL; - } - - if (OFFSET4K(offset)) - return -EINVAL; - - prot = get_prot32(prot); - - if (flags & MAP_HUGETLB) - return -ENOMEM; - -#if PAGE_SHIFT > IA32_PAGE_SHIFT - mutex_lock(&ia32_mmap_mutex); - { - addr = emulate_mmap(file, addr, len, prot, flags, offset); - } - mutex_unlock(&ia32_mmap_mutex); -#else - down_write(¤t->mm->mmap_sem); - { - addr = do_mmap(file, addr, len, prot, flags, offset); - } - up_write(¤t->mm->mmap_sem); -#endif - DBG("ia32_do_mmap: returning 0x%lx\n", addr); - return addr; -} - -/* - * Linux/i386 didn't use to be able to handle more than 4 system call parameters, so these - * system calls used a memory block for parameter passing.. - */ - -struct mmap_arg_struct { - unsigned int addr; - unsigned int len; - unsigned int prot; - unsigned int flags; - unsigned int fd; - unsigned int offset; -}; - -asmlinkage long -sys32_mmap (struct mmap_arg_struct __user *arg) -{ - struct mmap_arg_struct a; - struct file *file = NULL; - unsigned long addr; - int flags; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - - if (OFFSET4K(a.offset)) - return -EINVAL; - - flags = a.flags; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(a.fd); - if (!file) - return -EBADF; - } - - addr = ia32_do_mmap(file, a.addr, a.len, a.prot, flags, a.offset); - - if (file) - fput(file); - return addr; -} - -asmlinkage long -sys32_mmap2 (unsigned int addr, unsigned int len, unsigned int prot, unsigned int flags, - unsigned int fd, unsigned int pgoff) -{ - struct file *file = NULL; - unsigned long retval; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - return -EBADF; - } - - retval = ia32_do_mmap(file, addr, len, prot, flags, - (unsigned long) pgoff << IA32_PAGE_SHIFT); - - if (file) - fput(file); - return retval; -} - -asmlinkage long -sys32_munmap (unsigned int start, unsigned int len) -{ - unsigned int end = start + len; - long ret; - -#if PAGE_SHIFT <= IA32_PAGE_SHIFT - ret = sys_munmap(start, end - start); -#else - if (OFFSET4K(start)) - return -EINVAL; - - end = IA32_PAGE_ALIGN(end); - if (start >= end) - return -EINVAL; - - ret = ia32_unset_pp(&start, &end); - if (ret < 0) - return ret; - - if (start >= end) - return 0; - - mutex_lock(&ia32_mmap_mutex); - ret = sys_munmap(start, end - start); - mutex_unlock(&ia32_mmap_mutex); -#endif - return ret; -} - -#if PAGE_SHIFT > IA32_PAGE_SHIFT - -/* - * When mprotect()ing a partial page, we set the permission to the union of the old - * settings and the new settings. In other words, it's only possible to make access to a - * partial page less restrictive. - */ -static long -mprotect_subpage (unsigned long address, int new_prot) -{ - int old_prot; - struct vm_area_struct *vma; - - if (new_prot == PROT_NONE) - return 0; /* optimize case where nothing changes... */ - vma = find_vma(current->mm, address); - old_prot = get_page_prot(vma, address); - return sys_mprotect(address, PAGE_SIZE, new_prot | old_prot); -} - -#endif /* PAGE_SHIFT > IA32_PAGE_SHIFT */ - -asmlinkage long -sys32_mprotect (unsigned int start, unsigned int len, int prot) -{ - unsigned int end = start + len; -#if PAGE_SHIFT > IA32_PAGE_SHIFT - long retval = 0; -#endif - - prot = get_prot32(prot); - -#if PAGE_SHIFT <= IA32_PAGE_SHIFT - return sys_mprotect(start, end - start, prot); -#else - if (OFFSET4K(start)) - return -EINVAL; - - end = IA32_PAGE_ALIGN(end); - if (end < start) - return -EINVAL; - - retval = ia32_compare_pp(&start, &end); - - if (retval < 0) - return retval; - - mutex_lock(&ia32_mmap_mutex); - { - if (offset_in_page(start)) { - /* start address is 4KB aligned but not page aligned. */ - retval = mprotect_subpage(PAGE_START(start), prot); - if (retval < 0) - goto out; - - start = PAGE_ALIGN(start); - if (start >= end) - goto out; /* retval is already zero... */ - } - - if (offset_in_page(end)) { - /* end address is 4KB aligned but not page aligned. */ - retval = mprotect_subpage(PAGE_START(end), prot); - if (retval < 0) - goto out; - - end = PAGE_START(end); - } - retval = sys_mprotect(start, end - start, prot); - } - out: - mutex_unlock(&ia32_mmap_mutex); - return retval; -#endif -} - -asmlinkage long -sys32_mremap (unsigned int addr, unsigned int old_len, unsigned int new_len, - unsigned int flags, unsigned int new_addr) -{ - long ret; - -#if PAGE_SHIFT <= IA32_PAGE_SHIFT - ret = sys_mremap(addr, old_len, new_len, flags, new_addr); -#else - unsigned int old_end, new_end; - - if (OFFSET4K(addr)) - return -EINVAL; - - old_len = IA32_PAGE_ALIGN(old_len); - new_len = IA32_PAGE_ALIGN(new_len); - old_end = addr + old_len; - new_end = addr + new_len; - - if (!new_len) - return -EINVAL; - - if ((flags & MREMAP_FIXED) && (OFFSET4K(new_addr))) - return -EINVAL; - - if (old_len >= new_len) { - ret = sys32_munmap(addr + new_len, old_len - new_len); - if (ret && old_len != new_len) - return ret; - ret = addr; - if (!(flags & MREMAP_FIXED) || (new_addr == addr)) - return ret; - old_len = new_len; - } - - addr = PAGE_START(addr); - old_len = PAGE_ALIGN(old_end) - addr; - new_len = PAGE_ALIGN(new_end) - addr; - - mutex_lock(&ia32_mmap_mutex); - ret = sys_mremap(addr, old_len, new_len, flags, new_addr); - mutex_unlock(&ia32_mmap_mutex); - - if ((ret >= 0) && (old_len < new_len)) { - /* mremap expanded successfully */ - ia32_set_pp(old_end, new_end, flags); - } -#endif - return ret; -} - -asmlinkage unsigned long -sys32_alarm (unsigned int seconds) -{ - return alarm_setitimer(seconds); -} - -struct sel_arg_struct { - unsigned int n; - unsigned int inp; - unsigned int outp; - unsigned int exp; - unsigned int tvp; -}; - -asmlinkage long -sys32_old_select (struct sel_arg_struct __user *arg) -{ - struct sel_arg_struct a; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - return compat_sys_select(a.n, compat_ptr(a.inp), compat_ptr(a.outp), - compat_ptr(a.exp), compat_ptr(a.tvp)); -} - -#define SEMOP 1 -#define SEMGET 2 -#define SEMCTL 3 -#define SEMTIMEDOP 4 -#define MSGSND 11 -#define MSGRCV 12 -#define MSGGET 13 -#define MSGCTL 14 -#define SHMAT 21 -#define SHMDT 22 -#define SHMGET 23 -#define SHMCTL 24 - -asmlinkage long -sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth) -{ - int version; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMTIMEDOP: - if (fifth) - return compat_sys_semtimedop(first, compat_ptr(ptr), - second, compat_ptr(fifth)); - /* else fall through for normal semop() */ - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - return sys_semtimedop(first, compat_ptr(ptr), second, - NULL); - case SEMGET: - return sys_semget(first, second, third); - case SEMCTL: - return compat_sys_semctl(first, second, third, compat_ptr(ptr)); - - case MSGSND: - return compat_sys_msgsnd(first, second, third, compat_ptr(ptr)); - case MSGRCV: - return compat_sys_msgrcv(first, second, fifth, third, version, compat_ptr(ptr)); - case MSGGET: - return sys_msgget((key_t) first, second); - case MSGCTL: - return compat_sys_msgctl(first, second, compat_ptr(ptr)); - - case SHMAT: - return compat_sys_shmat(first, second, third, version, compat_ptr(ptr)); - break; - case SHMDT: - return sys_shmdt(compat_ptr(ptr)); - case SHMGET: - return sys_shmget(first, (unsigned)second, third); - case SHMCTL: - return compat_sys_shmctl(first, second, compat_ptr(ptr)); - - default: - return -ENOSYS; - } - return -EINVAL; -} - -asmlinkage long -compat_sys_wait4 (compat_pid_t pid, compat_uint_t * stat_addr, int options, - struct compat_rusage *ru); - -asmlinkage long -sys32_waitpid (int pid, unsigned int *stat_addr, int options) -{ - return compat_sys_wait4(pid, stat_addr, options, NULL); -} - -/* - * The order in which registers are stored in the ptrace regs structure - */ -#define PT_EBX 0 -#define PT_ECX 1 -#define PT_EDX 2 -#define PT_ESI 3 -#define PT_EDI 4 -#define PT_EBP 5 -#define PT_EAX 6 -#define PT_DS 7 -#define PT_ES 8 -#define PT_FS 9 -#define PT_GS 10 -#define PT_ORIG_EAX 11 -#define PT_EIP 12 -#define PT_CS 13 -#define PT_EFL 14 -#define PT_UESP 15 -#define PT_SS 16 - -static unsigned int -getreg (struct task_struct *child, int regno) -{ - struct pt_regs *child_regs; - - child_regs = task_pt_regs(child); - switch (regno / sizeof(int)) { - case PT_EBX: return child_regs->r11; - case PT_ECX: return child_regs->r9; - case PT_EDX: return child_regs->r10; - case PT_ESI: return child_regs->r14; - case PT_EDI: return child_regs->r15; - case PT_EBP: return child_regs->r13; - case PT_EAX: return child_regs->r8; - case PT_ORIG_EAX: return child_regs->r1; /* see dispatch_to_ia32_handler() */ - case PT_EIP: return child_regs->cr_iip; - case PT_UESP: return child_regs->r12; - case PT_EFL: return child->thread.eflag; - case PT_DS: case PT_ES: case PT_FS: case PT_GS: case PT_SS: - return __USER_DS; - case PT_CS: return __USER_CS; - default: - printk(KERN_ERR "ia32.getreg(): unknown register %d\n", regno); - break; - } - return 0; -} - -static void -putreg (struct task_struct *child, int regno, unsigned int value) -{ - struct pt_regs *child_regs; - - child_regs = task_pt_regs(child); - switch (regno / sizeof(int)) { - case PT_EBX: child_regs->r11 = value; break; - case PT_ECX: child_regs->r9 = value; break; - case PT_EDX: child_regs->r10 = value; break; - case PT_ESI: child_regs->r14 = value; break; - case PT_EDI: child_regs->r15 = value; break; - case PT_EBP: child_regs->r13 = value; break; - case PT_EAX: child_regs->r8 = value; break; - case PT_ORIG_EAX: child_regs->r1 = value; break; - case PT_EIP: child_regs->cr_iip = value; break; - case PT_UESP: child_regs->r12 = value; break; - case PT_EFL: child->thread.eflag = value; break; - case PT_DS: case PT_ES: case PT_FS: case PT_GS: case PT_SS: - if (value != __USER_DS) - printk(KERN_ERR - "ia32.putreg: attempt to set invalid segment register %d = %x\n", - regno, value); - break; - case PT_CS: - if (value != __USER_CS) - printk(KERN_ERR - "ia32.putreg: attempt to set invalid segment register %d = %x\n", - regno, value); - break; - default: - printk(KERN_ERR "ia32.putreg: unknown register %d\n", regno); - break; - } -} - -static void -put_fpreg (int regno, struct _fpreg_ia32 __user *reg, struct pt_regs *ptp, - struct switch_stack *swp, int tos) -{ - struct _fpreg_ia32 *f; - char buf[32]; - - f = (struct _fpreg_ia32 *)(((unsigned long)buf + 15) & ~15); - if ((regno += tos) >= 8) - regno -= 8; - switch (regno) { - case 0: - ia64f2ia32f(f, &ptp->f8); - break; - case 1: - ia64f2ia32f(f, &ptp->f9); - break; - case 2: - ia64f2ia32f(f, &ptp->f10); - break; - case 3: - ia64f2ia32f(f, &ptp->f11); - break; - case 4: - case 5: - case 6: - case 7: - ia64f2ia32f(f, &swp->f12 + (regno - 4)); - break; - } - copy_to_user(reg, f, sizeof(*reg)); -} - -static void -get_fpreg (int regno, struct _fpreg_ia32 __user *reg, struct pt_regs *ptp, - struct switch_stack *swp, int tos) -{ - - if ((regno += tos) >= 8) - regno -= 8; - switch (regno) { - case 0: - copy_from_user(&ptp->f8, reg, sizeof(*reg)); - break; - case 1: - copy_from_user(&ptp->f9, reg, sizeof(*reg)); - break; - case 2: - copy_from_user(&ptp->f10, reg, sizeof(*reg)); - break; - case 3: - copy_from_user(&ptp->f11, reg, sizeof(*reg)); - break; - case 4: - case 5: - case 6: - case 7: - copy_from_user(&swp->f12 + (regno - 4), reg, sizeof(*reg)); - break; - } - return; -} - -int -save_ia32_fpstate (struct task_struct *tsk, struct ia32_user_i387_struct __user *save) -{ - struct switch_stack *swp; - struct pt_regs *ptp; - int i, tos; - - if (!access_ok(VERIFY_WRITE, save, sizeof(*save))) - return -EFAULT; - - __put_user(tsk->thread.fcr & 0xffff, &save->cwd); - __put_user(tsk->thread.fsr & 0xffff, &save->swd); - __put_user((tsk->thread.fsr>>16) & 0xffff, &save->twd); - __put_user(tsk->thread.fir, &save->fip); - __put_user((tsk->thread.fir>>32) & 0xffff, &save->fcs); - __put_user(tsk->thread.fdr, &save->foo); - __put_user((tsk->thread.fdr>>32) & 0xffff, &save->fos); - - /* - * Stack frames start with 16-bytes of temp space - */ - swp = (struct switch_stack *)(tsk->thread.ksp + 16); - ptp = task_pt_regs(tsk); - tos = (tsk->thread.fsr >> 11) & 7; - for (i = 0; i < 8; i++) - put_fpreg(i, &save->st_space[i], ptp, swp, tos); - return 0; -} - -static int -restore_ia32_fpstate (struct task_struct *tsk, struct ia32_user_i387_struct __user *save) -{ - struct switch_stack *swp; - struct pt_regs *ptp; - int i, tos; - unsigned int fsrlo, fsrhi, num32; - - if (!access_ok(VERIFY_READ, save, sizeof(*save))) - return(-EFAULT); - - __get_user(num32, (unsigned int __user *)&save->cwd); - tsk->thread.fcr = (tsk->thread.fcr & (~0x1f3f)) | (num32 & 0x1f3f); - __get_user(fsrlo, (unsigned int __user *)&save->swd); - __get_user(fsrhi, (unsigned int __user *)&save->twd); - num32 = (fsrhi << 16) | fsrlo; - tsk->thread.fsr = (tsk->thread.fsr & (~0xffffffff)) | num32; - __get_user(num32, (unsigned int __user *)&save->fip); - tsk->thread.fir = (tsk->thread.fir & (~0xffffffff)) | num32; - __get_user(num32, (unsigned int __user *)&save->foo); - tsk->thread.fdr = (tsk->thread.fdr & (~0xffffffff)) | num32; - - /* - * Stack frames start with 16-bytes of temp space - */ - swp = (struct switch_stack *)(tsk->thread.ksp + 16); - ptp = task_pt_regs(tsk); - tos = (tsk->thread.fsr >> 11) & 7; - for (i = 0; i < 8; i++) - get_fpreg(i, &save->st_space[i], ptp, swp, tos); - return 0; -} - -int -save_ia32_fpxstate (struct task_struct *tsk, struct ia32_user_fxsr_struct __user *save) -{ - struct switch_stack *swp; - struct pt_regs *ptp; - int i, tos; - unsigned long mxcsr=0; - unsigned long num128[2]; - - if (!access_ok(VERIFY_WRITE, save, sizeof(*save))) - return -EFAULT; - - __put_user(tsk->thread.fcr & 0xffff, &save->cwd); - __put_user(tsk->thread.fsr & 0xffff, &save->swd); - __put_user((tsk->thread.fsr>>16) & 0xffff, &save->twd); - __put_user(tsk->thread.fir, &save->fip); - __put_user((tsk->thread.fir>>32) & 0xffff, &save->fcs); - __put_user(tsk->thread.fdr, &save->foo); - __put_user((tsk->thread.fdr>>32) & 0xffff, &save->fos); - - /* - * Stack frames start with 16-bytes of temp space - */ - swp = (struct switch_stack *)(tsk->thread.ksp + 16); - ptp = task_pt_regs(tsk); - tos = (tsk->thread.fsr >> 11) & 7; - for (i = 0; i < 8; i++) - put_fpreg(i, (struct _fpreg_ia32 __user *)&save->st_space[4*i], ptp, swp, tos); - - mxcsr = ((tsk->thread.fcr>>32) & 0xff80) | ((tsk->thread.fsr>>32) & 0x3f); - __put_user(mxcsr & 0xffff, &save->mxcsr); - for (i = 0; i < 8; i++) { - memcpy(&(num128[0]), &(swp->f16) + i*2, sizeof(unsigned long)); - memcpy(&(num128[1]), &(swp->f17) + i*2, sizeof(unsigned long)); - copy_to_user(&save->xmm_space[0] + 4*i, num128, sizeof(struct _xmmreg_ia32)); - } - return 0; -} - -static int -restore_ia32_fpxstate (struct task_struct *tsk, struct ia32_user_fxsr_struct __user *save) -{ - struct switch_stack *swp; - struct pt_regs *ptp; - int i, tos; - unsigned int fsrlo, fsrhi, num32; - int mxcsr; - unsigned long num64; - unsigned long num128[2]; - - if (!access_ok(VERIFY_READ, save, sizeof(*save))) - return(-EFAULT); - - __get_user(num32, (unsigned int __user *)&save->cwd); - tsk->thread.fcr = (tsk->thread.fcr & (~0x1f3f)) | (num32 & 0x1f3f); - __get_user(fsrlo, (unsigned int __user *)&save->swd); - __get_user(fsrhi, (unsigned int __user *)&save->twd); - num32 = (fsrhi << 16) | fsrlo; - tsk->thread.fsr = (tsk->thread.fsr & (~0xffffffff)) | num32; - __get_user(num32, (unsigned int __user *)&save->fip); - tsk->thread.fir = (tsk->thread.fir & (~0xffffffff)) | num32; - __get_user(num32, (unsigned int __user *)&save->foo); - tsk->thread.fdr = (tsk->thread.fdr & (~0xffffffff)) | num32; - - /* - * Stack frames start with 16-bytes of temp space - */ - swp = (struct switch_stack *)(tsk->thread.ksp + 16); - ptp = task_pt_regs(tsk); - tos = (tsk->thread.fsr >> 11) & 7; - for (i = 0; i < 8; i++) - get_fpreg(i, (struct _fpreg_ia32 __user *)&save->st_space[4*i], ptp, swp, tos); - - __get_user(mxcsr, (unsigned int __user *)&save->mxcsr); - num64 = mxcsr & 0xff10; - tsk->thread.fcr = (tsk->thread.fcr & (~0xff1000000000UL)) | (num64<<32); - num64 = mxcsr & 0x3f; - tsk->thread.fsr = (tsk->thread.fsr & (~0x3f00000000UL)) | (num64<<32); - - for (i = 0; i < 8; i++) { - copy_from_user(num128, &save->xmm_space[0] + 4*i, sizeof(struct _xmmreg_ia32)); - memcpy(&(swp->f16) + i*2, &(num128[0]), sizeof(unsigned long)); - memcpy(&(swp->f17) + i*2, &(num128[1]), sizeof(unsigned long)); - } - return 0; -} - -long compat_arch_ptrace(struct task_struct *child, compat_long_t request, - compat_ulong_t caddr, compat_ulong_t cdata) -{ - unsigned long addr = caddr; - unsigned long data = cdata; - unsigned int tmp; - long i, ret; - - switch (request) { - case PTRACE_PEEKUSR: /* read word at addr in USER area */ - ret = -EIO; - if ((addr & 3) || addr > 17*sizeof(int)) - break; - - tmp = getreg(child, addr); - if (!put_user(tmp, (unsigned int __user *) compat_ptr(data))) - ret = 0; - break; - - case PTRACE_POKEUSR: /* write word at addr in USER area */ - ret = -EIO; - if ((addr & 3) || addr > 17*sizeof(int)) - break; - - putreg(child, addr, data); - ret = 0; - break; - - case IA32_PTRACE_GETREGS: - if (!access_ok(VERIFY_WRITE, compat_ptr(data), 17*sizeof(int))) { - ret = -EIO; - break; - } - for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) { - put_user(getreg(child, i), (unsigned int __user *) compat_ptr(data)); - data += sizeof(int); - } - ret = 0; - break; - - case IA32_PTRACE_SETREGS: - if (!access_ok(VERIFY_READ, compat_ptr(data), 17*sizeof(int))) { - ret = -EIO; - break; - } - for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) { - get_user(tmp, (unsigned int __user *) compat_ptr(data)); - putreg(child, i, tmp); - data += sizeof(int); - } - ret = 0; - break; - - case IA32_PTRACE_GETFPREGS: - ret = save_ia32_fpstate(child, (struct ia32_user_i387_struct __user *) - compat_ptr(data)); - break; - - case IA32_PTRACE_GETFPXREGS: - ret = save_ia32_fpxstate(child, (struct ia32_user_fxsr_struct __user *) - compat_ptr(data)); - break; - - case IA32_PTRACE_SETFPREGS: - ret = restore_ia32_fpstate(child, (struct ia32_user_i387_struct __user *) - compat_ptr(data)); - break; - - case IA32_PTRACE_SETFPXREGS: - ret = restore_ia32_fpxstate(child, (struct ia32_user_fxsr_struct __user *) - compat_ptr(data)); - break; - - default: - return compat_ptrace_request(child, request, caddr, cdata); - } - return ret; -} - -typedef struct { - unsigned int ss_sp; - unsigned int ss_flags; - unsigned int ss_size; -} ia32_stack_t; - -asmlinkage long -sys32_sigaltstack (ia32_stack_t __user *uss32, ia32_stack_t __user *uoss32, - long arg2, long arg3, long arg4, long arg5, long arg6, - long arg7, struct pt_regs pt) -{ - stack_t uss, uoss; - ia32_stack_t buf32; - int ret; - mm_segment_t old_fs = get_fs(); - - if (uss32) { - if (copy_from_user(&buf32, uss32, sizeof(ia32_stack_t))) - return -EFAULT; - uss.ss_sp = (void __user *) (long) buf32.ss_sp; - uss.ss_flags = buf32.ss_flags; - /* MINSIGSTKSZ is different for ia32 vs ia64. We lie here to pass the - check and set it to the user requested value later */ - if ((buf32.ss_flags != SS_DISABLE) && (buf32.ss_size < MINSIGSTKSZ_IA32)) { - ret = -ENOMEM; - goto out; - } - uss.ss_size = MINSIGSTKSZ; - } - set_fs(KERNEL_DS); - ret = do_sigaltstack(uss32 ? (stack_t __user *) &uss : NULL, - (stack_t __user *) &uoss, pt.r12); - current->sas_ss_size = buf32.ss_size; - set_fs(old_fs); -out: - if (ret < 0) - return(ret); - if (uoss32) { - buf32.ss_sp = (long __user) uoss.ss_sp; - buf32.ss_flags = uoss.ss_flags; - buf32.ss_size = uoss.ss_size; - if (copy_to_user(uoss32, &buf32, sizeof(ia32_stack_t))) - return -EFAULT; - } - return ret; -} - -asmlinkage int -sys32_msync (unsigned int start, unsigned int len, int flags) -{ - unsigned int addr; - - if (OFFSET4K(start)) - return -EINVAL; - addr = PAGE_START(start); - return sys_msync(addr, len + (start - addr), flags); -} - -asmlinkage long -sys32_newuname (struct new_utsname __user *name) -{ - int ret = sys_newuname(name); - - if (!ret) - if (copy_to_user(name->machine, "i686\0\0\0", 8)) - ret = -EFAULT; - return ret; -} - -asmlinkage long -sys32_getresuid16 (u16 __user *ruid, u16 __user *euid, u16 __user *suid) -{ - uid_t a, b, c; - int ret; - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); - ret = sys_getresuid((uid_t __user *) &a, (uid_t __user *) &b, (uid_t __user *) &c); - set_fs(old_fs); - - if (put_user(a, ruid) || put_user(b, euid) || put_user(c, suid)) - return -EFAULT; - return ret; -} - -asmlinkage long -sys32_getresgid16 (u16 __user *rgid, u16 __user *egid, u16 __user *sgid) -{ - gid_t a, b, c; - int ret; - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); - ret = sys_getresgid((gid_t __user *) &a, (gid_t __user *) &b, (gid_t __user *) &c); - set_fs(old_fs); - - if (ret) - return ret; - - return put_user(a, rgid) | put_user(b, egid) | put_user(c, sgid); -} - -asmlinkage long -sys32_lseek (unsigned int fd, int offset, unsigned int whence) -{ - /* Sign-extension of "offset" is important here... */ - return sys_lseek(fd, offset, whence); -} - -static int -groups16_to_user(short __user *grouplist, struct group_info *group_info) -{ - int i; - short group; - - for (i = 0; i < group_info->ngroups; i++) { - group = (short)GROUP_AT(group_info, i); - if (put_user(group, grouplist+i)) - return -EFAULT; - } - - return 0; -} - -static int -groups16_from_user(struct group_info *group_info, short __user *grouplist) -{ - int i; - short group; - - for (i = 0; i < group_info->ngroups; i++) { - if (get_user(group, grouplist+i)) - return -EFAULT; - GROUP_AT(group_info, i) = (gid_t)group; - } - - return 0; -} - -asmlinkage long -sys32_getgroups16 (int gidsetsize, short __user *grouplist) -{ - const struct cred *cred = current_cred(); - int i; - - if (gidsetsize < 0) - return -EINVAL; - - i = cred->group_info->ngroups; - if (gidsetsize) { - if (i > gidsetsize) { - i = -EINVAL; - goto out; - } - if (groups16_to_user(grouplist, cred->group_info)) { - i = -EFAULT; - goto out; - } - } -out: - return i; -} - -asmlinkage long -sys32_setgroups16 (int gidsetsize, short __user *grouplist) -{ - struct group_info *group_info; - int retval; - - if (!capable(CAP_SETGID)) - return -EPERM; - if ((unsigned)gidsetsize > NGROUPS_MAX) - return -EINVAL; - - group_info = groups_alloc(gidsetsize); - if (!group_info) - return -ENOMEM; - retval = groups16_from_user(group_info, grouplist); - if (retval) { - put_group_info(group_info); - return retval; - } - - retval = set_current_groups(group_info); - put_group_info(group_info); - - return retval; -} - -asmlinkage long -sys32_truncate64 (unsigned int path, unsigned int len_lo, unsigned int len_hi) -{ - return sys_truncate(compat_ptr(path), ((unsigned long) len_hi << 32) | len_lo); -} - -asmlinkage long -sys32_ftruncate64 (int fd, unsigned int len_lo, unsigned int len_hi) -{ - return sys_ftruncate(fd, ((unsigned long) len_hi << 32) | len_lo); -} - -static int -putstat64 (struct stat64 __user *ubuf, struct kstat *kbuf) -{ - int err; - u64 hdev; - - if (clear_user(ubuf, sizeof(*ubuf))) - return -EFAULT; - - hdev = huge_encode_dev(kbuf->dev); - err = __put_user(hdev, (u32 __user*)&ubuf->st_dev); - err |= __put_user(hdev >> 32, ((u32 __user*)&ubuf->st_dev) + 1); - err |= __put_user(kbuf->ino, &ubuf->__st_ino); - err |= __put_user(kbuf->ino, &ubuf->st_ino_lo); - err |= __put_user(kbuf->ino >> 32, &ubuf->st_ino_hi); - err |= __put_user(kbuf->mode, &ubuf->st_mode); - err |= __put_user(kbuf->nlink, &ubuf->st_nlink); - err |= __put_user(kbuf->uid, &ubuf->st_uid); - err |= __put_user(kbuf->gid, &ubuf->st_gid); - hdev = huge_encode_dev(kbuf->rdev); - err = __put_user(hdev, (u32 __user*)&ubuf->st_rdev); - err |= __put_user(hdev >> 32, ((u32 __user*)&ubuf->st_rdev) + 1); - err |= __put_user(kbuf->size, &ubuf->st_size_lo); - err |= __put_user((kbuf->size >> 32), &ubuf->st_size_hi); - err |= __put_user(kbuf->atime.tv_sec, &ubuf->st_atime); - err |= __put_user(kbuf->atime.tv_nsec, &ubuf->st_atime_nsec); - err |= __put_user(kbuf->mtime.tv_sec, &ubuf->st_mtime); - err |= __put_user(kbuf->mtime.tv_nsec, &ubuf->st_mtime_nsec); - err |= __put_user(kbuf->ctime.tv_sec, &ubuf->st_ctime); - err |= __put_user(kbuf->ctime.tv_nsec, &ubuf->st_ctime_nsec); - err |= __put_user(kbuf->blksize, &ubuf->st_blksize); - err |= __put_user(kbuf->blocks, &ubuf->st_blocks); - return err; -} - -asmlinkage long -sys32_stat64 (char __user *filename, struct stat64 __user *statbuf) -{ - struct kstat s; - long ret = vfs_stat(filename, &s); - if (!ret) - ret = putstat64(statbuf, &s); - return ret; -} - -asmlinkage long -sys32_lstat64 (char __user *filename, struct stat64 __user *statbuf) -{ - struct kstat s; - long ret = vfs_lstat(filename, &s); - if (!ret) - ret = putstat64(statbuf, &s); - return ret; -} - -asmlinkage long -sys32_fstat64 (unsigned int fd, struct stat64 __user *statbuf) -{ - struct kstat s; - long ret = vfs_fstat(fd, &s); - if (!ret) - ret = putstat64(statbuf, &s); - return ret; -} - -asmlinkage long -sys32_sched_rr_get_interval (pid_t pid, struct compat_timespec __user *interval) -{ - mm_segment_t old_fs = get_fs(); - struct timespec t; - long ret; - - set_fs(KERNEL_DS); - ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t); - set_fs(old_fs); - if (put_compat_timespec(&t, interval)) - return -EFAULT; - return ret; -} - -asmlinkage long -sys32_pread (unsigned int fd, void __user *buf, unsigned int count, u32 pos_lo, u32 pos_hi) -{ - return sys_pread64(fd, buf, count, ((unsigned long) pos_hi << 32) | pos_lo); -} - -asmlinkage long -sys32_pwrite (unsigned int fd, void __user *buf, unsigned int count, u32 pos_lo, u32 pos_hi) -{ - return sys_pwrite64(fd, buf, count, ((unsigned long) pos_hi << 32) | pos_lo); -} - -asmlinkage long -sys32_sendfile (int out_fd, int in_fd, int __user *offset, unsigned int count) -{ - mm_segment_t old_fs = get_fs(); - long ret; - off_t of; - - if (offset && get_user(of, offset)) - return -EFAULT; - - set_fs(KERNEL_DS); - ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *) &of : NULL, count); - set_fs(old_fs); - - if (offset && put_user(of, offset)) - return -EFAULT; - - return ret; -} - -asmlinkage long -sys32_personality (unsigned int personality) -{ - long ret; - - if (current->personality == PER_LINUX32 && personality == PER_LINUX) - personality = PER_LINUX32; - ret = sys_personality(personality); - if (ret == PER_LINUX32) - ret = PER_LINUX; - return ret; -} - -asmlinkage unsigned long -sys32_brk (unsigned int brk) -{ - unsigned long ret, obrk; - struct mm_struct *mm = current->mm; - - obrk = mm->brk; - ret = sys_brk(brk); - if (ret < obrk) - clear_user(compat_ptr(ret), PAGE_ALIGN(ret) - ret); - return ret; -} - -/* Structure for ia32 emulation on ia64 */ -struct epoll_event32 -{ - u32 events; - u32 data[2]; -}; - -asmlinkage long -sys32_epoll_ctl(int epfd, int op, int fd, struct epoll_event32 __user *event) -{ - mm_segment_t old_fs = get_fs(); - struct epoll_event event64; - int error; - u32 data_halfword; - - if (!access_ok(VERIFY_READ, event, sizeof(struct epoll_event32))) - return -EFAULT; - - __get_user(event64.events, &event->events); - __get_user(data_halfword, &event->data[0]); - event64.data = data_halfword; - __get_user(data_halfword, &event->data[1]); - event64.data |= (u64)data_halfword << 32; - - set_fs(KERNEL_DS); - error = sys_epoll_ctl(epfd, op, fd, (struct epoll_event __user *) &event64); - set_fs(old_fs); - - return error; -} - -asmlinkage long -sys32_epoll_wait(int epfd, struct epoll_event32 __user * events, int maxevents, - int timeout) -{ - struct epoll_event *events64 = NULL; - mm_segment_t old_fs = get_fs(); - int numevents, size; - int evt_idx; - int do_free_pages = 0; - - if (maxevents <= 0) { - return -EINVAL; - } - - /* Verify that the area passed by the user is writeable */ - if (!access_ok(VERIFY_WRITE, events, maxevents * sizeof(struct epoll_event32))) - return -EFAULT; - - /* - * Allocate space for the intermediate copy. If the space needed - * is large enough to cause kmalloc to fail, then try again with - * __get_free_pages. - */ - size = maxevents * sizeof(struct epoll_event); - events64 = kmalloc(size, GFP_KERNEL); - if (events64 == NULL) { - events64 = (struct epoll_event *) - __get_free_pages(GFP_KERNEL, get_order(size)); - if (events64 == NULL) - return -ENOMEM; - do_free_pages = 1; - } - - /* Do the system call */ - set_fs(KERNEL_DS); /* copy_to/from_user should work on kernel mem*/ - numevents = sys_epoll_wait(epfd, (struct epoll_event __user *) events64, - maxevents, timeout); - set_fs(old_fs); - - /* Don't modify userspace memory if we're returning an error */ - if (numevents > 0) { - /* Translate the 64-bit structures back into the 32-bit - structures */ - for (evt_idx = 0; evt_idx < numevents; evt_idx++) { - __put_user(events64[evt_idx].events, - &events[evt_idx].events); - __put_user((u32)events64[evt_idx].data, - &events[evt_idx].data[0]); - __put_user((u32)(events64[evt_idx].data >> 32), - &events[evt_idx].data[1]); - } - } - - if (do_free_pages) - free_pages((unsigned long) events64, get_order(size)); - else - kfree(events64); - return numevents; -} - -/* - * Get a yet unused TLS descriptor index. - */ -static int -get_free_idx (void) -{ - struct thread_struct *t = ¤t->thread; - int idx; - - for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++) - if (desc_empty(t->tls_array + idx)) - return idx + GDT_ENTRY_TLS_MIN; - return -ESRCH; -} - -static void set_tls_desc(struct task_struct *p, int idx, - const struct ia32_user_desc *info, int n) -{ - struct thread_struct *t = &p->thread; - struct desc_struct *desc = &t->tls_array[idx - GDT_ENTRY_TLS_MIN]; - int cpu; - - /* - * We must not get preempted while modifying the TLS. - */ - cpu = get_cpu(); - - while (n-- > 0) { - if (LDT_empty(info)) { - desc->a = 0; - desc->b = 0; - } else { - desc->a = LDT_entry_a(info); - desc->b = LDT_entry_b(info); - } - - ++info; - ++desc; - } - - if (t == ¤t->thread) - load_TLS(t, cpu); - - put_cpu(); -} - -/* - * Set a given TLS descriptor: - */ -asmlinkage int -sys32_set_thread_area (struct ia32_user_desc __user *u_info) -{ - struct ia32_user_desc info; - int idx; - - if (copy_from_user(&info, u_info, sizeof(info))) - return -EFAULT; - idx = info.entry_number; - - /* - * index -1 means the kernel should try to find and allocate an empty descriptor: - */ - if (idx == -1) { - idx = get_free_idx(); - if (idx < 0) - return idx; - if (put_user(idx, &u_info->entry_number)) - return -EFAULT; - } - - if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) - return -EINVAL; - - set_tls_desc(current, idx, &info, 1); - return 0; -} - -/* - * Get the current Thread-Local Storage area: - */ - -#define GET_BASE(desc) ( \ - (((desc)->a >> 16) & 0x0000ffff) | \ - (((desc)->b << 16) & 0x00ff0000) | \ - ( (desc)->b & 0xff000000) ) - -#define GET_LIMIT(desc) ( \ - ((desc)->a & 0x0ffff) | \ - ((desc)->b & 0xf0000) ) - -#define GET_32BIT(desc) (((desc)->b >> 22) & 1) -#define GET_CONTENTS(desc) (((desc)->b >> 10) & 3) -#define GET_WRITABLE(desc) (((desc)->b >> 9) & 1) -#define GET_LIMIT_PAGES(desc) (((desc)->b >> 23) & 1) -#define GET_PRESENT(desc) (((desc)->b >> 15) & 1) -#define GET_USEABLE(desc) (((desc)->b >> 20) & 1) - -static void fill_user_desc(struct ia32_user_desc *info, int idx, - const struct desc_struct *desc) -{ - info->entry_number = idx; - info->base_addr = GET_BASE(desc); - info->limit = GET_LIMIT(desc); - info->seg_32bit = GET_32BIT(desc); - info->contents = GET_CONTENTS(desc); - info->read_exec_only = !GET_WRITABLE(desc); - info->limit_in_pages = GET_LIMIT_PAGES(desc); - info->seg_not_present = !GET_PRESENT(desc); - info->useable = GET_USEABLE(desc); -} - -asmlinkage int -sys32_get_thread_area (struct ia32_user_desc __user *u_info) -{ - struct ia32_user_desc info; - struct desc_struct *desc; - int idx; - - if (get_user(idx, &u_info->entry_number)) - return -EFAULT; - if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) - return -EINVAL; - - desc = current->thread.tls_array + idx - GDT_ENTRY_TLS_MIN; - fill_user_desc(&info, idx, desc); - - if (copy_to_user(u_info, &info, sizeof(info))) - return -EFAULT; - return 0; -} - -struct regset_get { - void *kbuf; - void __user *ubuf; -}; - -struct regset_set { - const void *kbuf; - const void __user *ubuf; -}; - -struct regset_getset { - struct task_struct *target; - const struct user_regset *regset; - union { - struct regset_get get; - struct regset_set set; - } u; - unsigned int pos; - unsigned int count; - int ret; -}; - -static void getfpreg(struct task_struct *task, int regno, int *val) -{ - switch (regno / sizeof(int)) { - case 0: - *val = task->thread.fcr & 0xffff; - break; - case 1: - *val = task->thread.fsr & 0xffff; - break; - case 2: - *val = (task->thread.fsr>>16) & 0xffff; - break; - case 3: - *val = task->thread.fir; - break; - case 4: - *val = (task->thread.fir>>32) & 0xffff; - break; - case 5: - *val = task->thread.fdr; - break; - case 6: - *val = (task->thread.fdr >> 32) & 0xffff; - break; - } -} - -static void setfpreg(struct task_struct *task, int regno, int val) -{ - switch (regno / sizeof(int)) { - case 0: - task->thread.fcr = (task->thread.fcr & (~0x1f3f)) - | (val & 0x1f3f); - break; - case 1: - task->thread.fsr = (task->thread.fsr & (~0xffff)) | val; - break; - case 2: - task->thread.fsr = (task->thread.fsr & (~0xffff0000)) - | (val << 16); - break; - case 3: - task->thread.fir = (task->thread.fir & (~0xffffffff)) | val; - break; - case 5: - task->thread.fdr = (task->thread.fdr & (~0xffffffff)) | val; - break; - } -} - -static void access_fpreg_ia32(int regno, void *reg, - struct pt_regs *pt, struct switch_stack *sw, - int tos, int write) -{ - void *f; - - if ((regno += tos) >= 8) - regno -= 8; - if (regno < 4) - f = &pt->f8 + regno; - else if (regno <= 7) - f = &sw->f12 + (regno - 4); - else { - printk(KERN_ERR "regno must be less than 7 \n"); - return; - } - - if (write) - memcpy(f, reg, sizeof(struct _fpreg_ia32)); - else - memcpy(reg, f, sizeof(struct _fpreg_ia32)); -} - -static void do_fpregs_get(struct unw_frame_info *info, void *arg) -{ - struct regset_getset *dst = arg; - struct task_struct *task = dst->target; - struct pt_regs *pt; - int start, end, tos; - char buf[80]; - - if (dst->count == 0 || unw_unwind_to_user(info) < 0) - return; - if (dst->pos < 7 * sizeof(int)) { - end = min((dst->pos + dst->count), - (unsigned int)(7 * sizeof(int))); - for (start = dst->pos; start < end; start += sizeof(int)) - getfpreg(task, start, (int *)(buf + start)); - dst->ret = user_regset_copyout(&dst->pos, &dst->count, - &dst->u.get.kbuf, &dst->u.get.ubuf, buf, - 0, 7 * sizeof(int)); - if (dst->ret || dst->count == 0) - return; - } - if (dst->pos < sizeof(struct ia32_user_i387_struct)) { - pt = task_pt_regs(task); - tos = (task->thread.fsr >> 11) & 7; - end = min(dst->pos + dst->count, - (unsigned int)(sizeof(struct ia32_user_i387_struct))); - start = (dst->pos - 7 * sizeof(int)) / - sizeof(struct _fpreg_ia32); - end = (end - 7 * sizeof(int)) / sizeof(struct _fpreg_ia32); - for (; start < end; start++) - access_fpreg_ia32(start, - (struct _fpreg_ia32 *)buf + start, - pt, info->sw, tos, 0); - dst->ret = user_regset_copyout(&dst->pos, &dst->count, - &dst->u.get.kbuf, &dst->u.get.ubuf, - buf, 7 * sizeof(int), - sizeof(struct ia32_user_i387_struct)); - if (dst->ret || dst->count == 0) - return; - } -} - -static void do_fpregs_set(struct unw_frame_info *info, void *arg) -{ - struct regset_getset *dst = arg; - struct task_struct *task = dst->target; - struct pt_regs *pt; - char buf[80]; - int end, start, tos; - - if (dst->count == 0 || unw_unwind_to_user(info) < 0) - return; - - if (dst->pos < 7 * sizeof(int)) { - start = dst->pos; - dst->ret = user_regset_copyin(&dst->pos, &dst->count, - &dst->u.set.kbuf, &dst->u.set.ubuf, buf, - 0, 7 * sizeof(int)); - if (dst->ret) - return; - for (; start < dst->pos; start += sizeof(int)) - setfpreg(task, start, *((int *)(buf + start))); - if (dst->count == 0) - return; - } - if (dst->pos < sizeof(struct ia32_user_i387_struct)) { - start = (dst->pos - 7 * sizeof(int)) / - sizeof(struct _fpreg_ia32); - dst->ret = user_regset_copyin(&dst->pos, &dst->count, - &dst->u.set.kbuf, &dst->u.set.ubuf, - buf, 7 * sizeof(int), - sizeof(struct ia32_user_i387_struct)); - if (dst->ret) - return; - pt = task_pt_regs(task); - tos = (task->thread.fsr >> 11) & 7; - end = (dst->pos - 7 * sizeof(int)) / sizeof(struct _fpreg_ia32); - for (; start < end; start++) - access_fpreg_ia32(start, - (struct _fpreg_ia32 *)buf + start, - pt, info->sw, tos, 1); - if (dst->count == 0) - return; - } -} - -#define OFFSET(member) ((int)(offsetof(struct ia32_user_fxsr_struct, member))) -static void getfpxreg(struct task_struct *task, int start, int end, char *buf) -{ - int min_val; - - min_val = min(end, OFFSET(fop)); - while (start < min_val) { - if (start == OFFSET(cwd)) - *((short *)buf) = task->thread.fcr & 0xffff; - else if (start == OFFSET(swd)) - *((short *)buf) = task->thread.fsr & 0xffff; - else if (start == OFFSET(twd)) - *((short *)buf) = (task->thread.fsr>>16) & 0xffff; - buf += 2; - start += 2; - } - /* skip fop element */ - if (start == OFFSET(fop)) { - start += 2; - buf += 2; - } - while (start < end) { - if (start == OFFSET(fip)) - *((int *)buf) = task->thread.fir; - else if (start == OFFSET(fcs)) - *((int *)buf) = (task->thread.fir>>32) & 0xffff; - else if (start == OFFSET(foo)) - *((int *)buf) = task->thread.fdr; - else if (start == OFFSET(fos)) - *((int *)buf) = (task->thread.fdr>>32) & 0xffff; - else if (start == OFFSET(mxcsr)) - *((int *)buf) = ((task->thread.fcr>>32) & 0xff80) - | ((task->thread.fsr>>32) & 0x3f); - buf += 4; - start += 4; - } -} - -static void setfpxreg(struct task_struct *task, int start, int end, char *buf) -{ - int min_val, num32; - short num; - unsigned long num64; - - min_val = min(end, OFFSET(fop)); - while (start < min_val) { - num = *((short *)buf); - if (start == OFFSET(cwd)) { - task->thread.fcr = (task->thread.fcr & (~0x1f3f)) - | (num & 0x1f3f); - } else if (start == OFFSET(swd)) { - task->thread.fsr = (task->thread.fsr & (~0xffff)) | num; - } else if (start == OFFSET(twd)) { - task->thread.fsr = (task->thread.fsr & (~0xffff0000)) - | (((int)num) << 16); - } - buf += 2; - start += 2; - } - /* skip fop element */ - if (start == OFFSET(fop)) { - start += 2; - buf += 2; - } - while (start < end) { - num32 = *((int *)buf); - if (start == OFFSET(fip)) - task->thread.fir = (task->thread.fir & (~0xffffffff)) - | num32; - else if (start == OFFSET(foo)) - task->thread.fdr = (task->thread.fdr & (~0xffffffff)) - | num32; - else if (start == OFFSET(mxcsr)) { - num64 = num32 & 0xff10; - task->thread.fcr = (task->thread.fcr & - (~0xff1000000000UL)) | (num64<<32); - num64 = num32 & 0x3f; - task->thread.fsr = (task->thread.fsr & - (~0x3f00000000UL)) | (num64<<32); - } - buf += 4; - start += 4; - } -} - -static void do_fpxregs_get(struct unw_frame_info *info, void *arg) -{ - struct regset_getset *dst = arg; - struct task_struct *task = dst->target; - struct pt_regs *pt; - char buf[128]; - int start, end, tos; - - if (dst->count == 0 || unw_unwind_to_user(info) < 0) - return; - if (dst->pos < OFFSET(st_space[0])) { - end = min(dst->pos + dst->count, (unsigned int)32); - getfpxreg(task, dst->pos, end, buf); - dst->ret = user_regset_copyout(&dst->pos, &dst->count, - &dst->u.get.kbuf, &dst->u.get.ubuf, buf, - 0, OFFSET(st_space[0])); - if (dst->ret || dst->count == 0) - return; - } - if (dst->pos < OFFSET(xmm_space[0])) { - pt = task_pt_regs(task); - tos = (task->thread.fsr >> 11) & 7; - end = min(dst->pos + dst->count, - (unsigned int)OFFSET(xmm_space[0])); - start = (dst->pos - OFFSET(st_space[0])) / 16; - end = (end - OFFSET(st_space[0])) / 16; - for (; start < end; start++) - access_fpreg_ia32(start, buf + 16 * start, pt, - info->sw, tos, 0); - dst->ret = user_regset_copyout(&dst->pos, &dst->count, - &dst->u.get.kbuf, &dst->u.get.ubuf, - buf, OFFSET(st_space[0]), OFFSET(xmm_space[0])); - if (dst->ret || dst->count == 0) - return; - } - if (dst->pos < OFFSET(padding[0])) - dst->ret = user_regset_copyout(&dst->pos, &dst->count, - &dst->u.get.kbuf, &dst->u.get.ubuf, - &info->sw->f16, OFFSET(xmm_space[0]), - OFFSET(padding[0])); -} - -static void do_fpxregs_set(struct unw_frame_info *info, void *arg) -{ - struct regset_getset *dst = arg; - struct task_struct *task = dst->target; - char buf[128]; - int start, end; - - if (dst->count == 0 || unw_unwind_to_user(info) < 0) - return; - - if (dst->pos < OFFSET(st_space[0])) { - start = dst->pos; - dst->ret = user_regset_copyin(&dst->pos, &dst->count, - &dst->u.set.kbuf, &dst->u.set.ubuf, - buf, 0, OFFSET(st_space[0])); - if (dst->ret) - return; - setfpxreg(task, start, dst->pos, buf); - if (dst->count == 0) - return; - } - if (dst->pos < OFFSET(xmm_space[0])) { - struct pt_regs *pt; - int tos; - pt = task_pt_regs(task); - tos = (task->thread.fsr >> 11) & 7; - start = (dst->pos - OFFSET(st_space[0])) / 16; - dst->ret = user_regset_copyin(&dst->pos, &dst->count, - &dst->u.set.kbuf, &dst->u.set.ubuf, - buf, OFFSET(st_space[0]), OFFSET(xmm_space[0])); - if (dst->ret) - return; - end = (dst->pos - OFFSET(st_space[0])) / 16; - for (; start < end; start++) - access_fpreg_ia32(start, buf + 16 * start, pt, info->sw, - tos, 1); - if (dst->count == 0) - return; - } - if (dst->pos < OFFSET(padding[0])) - dst->ret = user_regset_copyin(&dst->pos, &dst->count, - &dst->u.set.kbuf, &dst->u.set.ubuf, - &info->sw->f16, OFFSET(xmm_space[0]), - OFFSET(padding[0])); -} -#undef OFFSET - -static int do_regset_call(void (*call)(struct unw_frame_info *, void *), - struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - struct regset_getset info = { .target = target, .regset = regset, - .pos = pos, .count = count, - .u.set = { .kbuf = kbuf, .ubuf = ubuf }, - .ret = 0 }; - - if (target == current) - unw_init_running(call, &info); - else { - struct unw_frame_info ufi; - memset(&ufi, 0, sizeof(ufi)); - unw_init_from_blocked_task(&ufi, target); - (*call)(&ufi, &info); - } - - return info.ret; -} - -static int ia32_fpregs_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - return do_regset_call(do_fpregs_get, target, regset, pos, count, - kbuf, ubuf); -} - -static int ia32_fpregs_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - return do_regset_call(do_fpregs_set, target, regset, pos, count, - kbuf, ubuf); -} - -static int ia32_fpxregs_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - return do_regset_call(do_fpxregs_get, target, regset, pos, count, - kbuf, ubuf); -} - -static int ia32_fpxregs_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - return do_regset_call(do_fpxregs_set, target, regset, pos, count, - kbuf, ubuf); -} - -static int ia32_genregs_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - if (kbuf) { - u32 *kp = kbuf; - while (count > 0) { - *kp++ = getreg(target, pos); - pos += 4; - count -= 4; - } - } else { - u32 __user *up = ubuf; - while (count > 0) { - if (__put_user(getreg(target, pos), up++)) - return -EFAULT; - pos += 4; - count -= 4; - } - } - return 0; -} - -static int ia32_genregs_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - int ret = 0; - - if (kbuf) { - const u32 *kp = kbuf; - while (!ret && count > 0) { - putreg(target, pos, *kp++); - pos += 4; - count -= 4; - } - } else { - const u32 __user *up = ubuf; - u32 val; - while (!ret && count > 0) { - ret = __get_user(val, up++); - if (!ret) - putreg(target, pos, val); - pos += 4; - count -= 4; - } - } - return ret; -} - -static int ia32_tls_active(struct task_struct *target, - const struct user_regset *regset) -{ - struct thread_struct *t = &target->thread; - int n = GDT_ENTRY_TLS_ENTRIES; - while (n > 0 && desc_empty(&t->tls_array[n -1])) - --n; - return n; -} - -static int ia32_tls_get(struct task_struct *target, - const struct user_regset *regset, unsigned int pos, - unsigned int count, void *kbuf, void __user *ubuf) -{ - const struct desc_struct *tls; - - if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct ia32_user_desc) || - (pos % sizeof(struct ia32_user_desc)) != 0 || - (count % sizeof(struct ia32_user_desc)) != 0) - return -EINVAL; - - pos /= sizeof(struct ia32_user_desc); - count /= sizeof(struct ia32_user_desc); - - tls = &target->thread.tls_array[pos]; - - if (kbuf) { - struct ia32_user_desc *info = kbuf; - while (count-- > 0) - fill_user_desc(info++, GDT_ENTRY_TLS_MIN + pos++, - tls++); - } else { - struct ia32_user_desc __user *u_info = ubuf; - while (count-- > 0) { - struct ia32_user_desc info; - fill_user_desc(&info, GDT_ENTRY_TLS_MIN + pos++, tls++); - if (__copy_to_user(u_info++, &info, sizeof(info))) - return -EFAULT; - } - } - - return 0; -} - -static int ia32_tls_set(struct task_struct *target, - const struct user_regset *regset, unsigned int pos, - unsigned int count, const void *kbuf, const void __user *ubuf) -{ - struct ia32_user_desc infobuf[GDT_ENTRY_TLS_ENTRIES]; - const struct ia32_user_desc *info; - - if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct ia32_user_desc) || - (pos % sizeof(struct ia32_user_desc)) != 0 || - (count % sizeof(struct ia32_user_desc)) != 0) - return -EINVAL; - - if (kbuf) - info = kbuf; - else if (__copy_from_user(infobuf, ubuf, count)) - return -EFAULT; - else - info = infobuf; - - set_tls_desc(target, - GDT_ENTRY_TLS_MIN + (pos / sizeof(struct ia32_user_desc)), - info, count / sizeof(struct ia32_user_desc)); - - return 0; -} - -/* - * This should match arch/i386/kernel/ptrace.c:native_regsets. - * XXX ioperm? vm86? - */ -static const struct user_regset ia32_regsets[] = { - { - .core_note_type = NT_PRSTATUS, - .n = sizeof(struct user_regs_struct32)/4, - .size = 4, .align = 4, - .get = ia32_genregs_get, .set = ia32_genregs_set - }, - { - .core_note_type = NT_PRFPREG, - .n = sizeof(struct ia32_user_i387_struct) / 4, - .size = 4, .align = 4, - .get = ia32_fpregs_get, .set = ia32_fpregs_set - }, - { - .core_note_type = NT_PRXFPREG, - .n = sizeof(struct ia32_user_fxsr_struct) / 4, - .size = 4, .align = 4, - .get = ia32_fpxregs_get, .set = ia32_fpxregs_set - }, - { - .core_note_type = NT_386_TLS, - .n = GDT_ENTRY_TLS_ENTRIES, - .bias = GDT_ENTRY_TLS_MIN, - .size = sizeof(struct ia32_user_desc), - .align = sizeof(struct ia32_user_desc), - .active = ia32_tls_active, - .get = ia32_tls_get, .set = ia32_tls_set, - }, -}; - -const struct user_regset_view user_ia32_view = { - .name = "i386", .e_machine = EM_386, - .regsets = ia32_regsets, .n = ARRAY_SIZE(ia32_regsets) -}; - -long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high, - __u32 len_low, __u32 len_high, int advice) -{ - return sys_fadvise64_64(fd, - (((u64)offset_high)<<32) | offset_low, - (((u64)len_high)<<32) | len_low, - advice); -} - -#ifdef NOTYET /* UNTESTED FOR IA64 FROM HERE DOWN */ - -asmlinkage long sys32_setreuid(compat_uid_t ruid, compat_uid_t euid) -{ - uid_t sruid, seuid; - - sruid = (ruid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)ruid); - seuid = (euid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)euid); - return sys_setreuid(sruid, seuid); -} - -asmlinkage long -sys32_setresuid(compat_uid_t ruid, compat_uid_t euid, - compat_uid_t suid) -{ - uid_t sruid, seuid, ssuid; - - sruid = (ruid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)ruid); - seuid = (euid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)euid); - ssuid = (suid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)suid); - return sys_setresuid(sruid, seuid, ssuid); -} - -asmlinkage long -sys32_setregid(compat_gid_t rgid, compat_gid_t egid) -{ - gid_t srgid, segid; - - srgid = (rgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)rgid); - segid = (egid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)egid); - return sys_setregid(srgid, segid); -} - -asmlinkage long -sys32_setresgid(compat_gid_t rgid, compat_gid_t egid, - compat_gid_t sgid) -{ - gid_t srgid, segid, ssgid; - - srgid = (rgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)rgid); - segid = (egid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)egid); - ssgid = (sgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)sgid); - return sys_setresgid(srgid, segid, ssgid); -} -#endif /* NOTYET */ diff --git a/arch/ia64/include/asm/ia32.h b/arch/ia64/include/asm/ia32.h deleted file mode 100644 index 2390ee145aa..00000000000 --- a/arch/ia64/include/asm/ia32.h +++ /dev/null @@ -1,40 +0,0 @@ -#ifndef _ASM_IA64_IA32_H -#define _ASM_IA64_IA32_H - - -#include <asm/ptrace.h> -#include <asm/signal.h> - -#define IA32_NR_syscalls 285 /* length of syscall table */ -#define IA32_PAGE_SHIFT 12 /* 4KB pages */ - -#ifndef __ASSEMBLY__ - -# ifdef CONFIG_IA32_SUPPORT - -#define IA32_PAGE_OFFSET 0xc0000000 - -extern void ia32_cpu_init (void); -extern void ia32_mem_init (void); -extern void ia32_gdt_init (void); -extern int ia32_exception (struct pt_regs *regs, unsigned long isr); -extern int ia32_intercept (struct pt_regs *regs, unsigned long isr); -extern int ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs); - -# endif /* !CONFIG_IA32_SUPPORT */ - -/* Declare this unconditionally, so we don't get warnings for unreachable code. */ -extern int ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs); -#if PAGE_SHIFT > IA32_PAGE_SHIFT -extern int ia32_copy_ia64_partial_page_list(struct task_struct *, - unsigned long); -extern void ia32_drop_ia64_partial_page_list(struct task_struct *); -#else -# define ia32_copy_ia64_partial_page_list(a1, a2) 0 -# define ia32_drop_ia64_partial_page_list(a1) do { ; } while (0) -#endif - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_IA64_IA32_H */ diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h index 7fa90f73f6b..348e44d08ce 100644 --- a/arch/ia64/include/asm/processor.h +++ b/arch/ia64/include/asm/processor.h @@ -270,23 +270,6 @@ typedef struct { (int __user *) (addr)); \ }) -#ifdef CONFIG_IA32_SUPPORT -struct desc_struct { - unsigned int a, b; -}; - -#define desc_empty(desc) (!((desc)->a | (desc)->b)) -#define desc_equal(desc1, desc2) (((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b)) - -#define GDT_ENTRY_TLS_ENTRIES 3 -#define GDT_ENTRY_TLS_MIN 6 -#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1) - -#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8) - -struct ia64_partial_page_list; -#endif - struct thread_struct { __u32 flags; /* various thread flags (see IA64_THREAD_*) */ /* writing on_ustack is performance-critical, so it's worth spending 8 bits on it... */ @@ -298,29 +281,6 @@ struct thread_struct { __u64 rbs_bot; /* the base address for the RBS */ int last_fph_cpu; /* CPU that may hold the contents of f32-f127 */ -#ifdef CONFIG_IA32_SUPPORT - __u64 eflag; /* IA32 EFLAGS reg */ - __u64 fsr; /* IA32 floating pt status reg */ - __u64 fcr; /* IA32 floating pt control reg */ - __u64 fir; /* IA32 fp except. instr. reg */ - __u64 fdr; /* IA32 fp except. data reg */ - __u64 old_k1; /* old value of ar.k1 */ - __u64 old_iob; /* old IOBase value */ - struct ia64_partial_page_list *ppl; /* partial page list for 4K page size issue */ - /* cached TLS descriptors. */ - struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES]; - -# define INIT_THREAD_IA32 .eflag = 0, \ - .fsr = 0, \ - .fcr = 0x17800000037fULL, \ - .fir = 0, \ - .fdr = 0, \ - .old_k1 = 0, \ - .old_iob = 0, \ - .ppl = NULL, -#else -# define INIT_THREAD_IA32 -#endif /* CONFIG_IA32_SUPPORT */ #ifdef CONFIG_PERFMON void *pfm_context; /* pointer to detailed PMU context */ unsigned long pfm_needs_checking; /* when >0, pending perfmon work on kernel exit */ @@ -342,7 +302,6 @@ struct thread_struct { .rbs_bot = STACK_TOP - DEFAULT_USER_STACK_SIZE, \ .task_size = DEFAULT_TASK_SIZE, \ .last_fph_cpu = -1, \ - INIT_THREAD_IA32 \ INIT_THREAD_PM \ .dbr = {0, }, \ .ibr = {0, }, \ @@ -485,11 +444,6 @@ extern void __ia64_load_fpu (struct ia64_fpreg *fph); extern void ia64_save_debug_regs (unsigned long *save_area); extern void ia64_load_debug_regs (unsigned long *save_area); -#ifdef CONFIG_IA32_SUPPORT -extern void ia32_save_state (struct task_struct *task); -extern void ia32_load_state (struct task_struct *task); -#endif - #define ia64_fph_enable() do { ia64_rsm(IA64_PSR_DFH); ia64_srlz_d(); } while (0) #define ia64_fph_disable() do { ia64_ssm(IA64_PSR_DFH); ia64_srlz_d(); } while (0) diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h index 2f758a42f94..a7ff1c6ab06 100644 --- a/arch/ia64/include/asm/syscall.h +++ b/arch/ia64/include/asm/syscall.h @@ -22,33 +22,18 @@ static inline long syscall_get_nr(struct task_struct *task, if ((long)regs->cr_ifs < 0) /* Not a syscall */ return -1; -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) - return regs->r1; -#endif - return regs->r15; } static inline void syscall_rollback(struct task_struct *task, struct pt_regs *regs) { -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) - regs->r8 = regs->r1; -#endif - /* do nothing */ } static inline long syscall_get_error(struct task_struct *task, struct pt_regs *regs) { -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) - return regs->r8; -#endif - return regs->r10 == -1 ? regs->r8:0; } @@ -62,13 +47,6 @@ static inline void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, int error, long val) { -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) { - regs->r8 = (long) error ? error : val; - return; - } -#endif - if (error) { /* error < 0, but ia64 uses > 0 return value */ regs->r8 = -error; @@ -89,37 +67,6 @@ static inline void syscall_get_arguments(struct task_struct *task, { BUG_ON(i + n > 6); -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) { - switch (i + n) { - case 6: - if (!n--) break; - *args++ = regs->r13; - case 5: - if (!n--) break; - *args++ = regs->r15; - case 4: - if (!n--) break; - *args++ = regs->r14; - case 3: - if (!n--) break; - *args++ = regs->r10; - case 2: - if (!n--) break; - *args++ = regs->r9; - case 1: - if (!n--) break; - *args++ = regs->r11; - case 0: - if (!n--) break; - default: - BUG(); - break; - } - - return; - } -#endif ia64_syscall_get_set_arguments(task, regs, i, n, args, 0); } @@ -130,34 +77,6 @@ static inline void syscall_set_arguments(struct task_struct *task, { BUG_ON(i + n > 6); -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) { - switch (i + n) { - case 6: - if (!n--) break; - regs->r13 = *args++; - case 5: - if (!n--) break; - regs->r15 = *args++; - case 4: - if (!n--) break; - regs->r14 = *args++; - case 3: - if (!n--) break; - regs->r10 = *args++; - case 2: - if (!n--) break; - regs->r9 = *args++; - case 1: - if (!n--) break; - regs->r11 = *args++; - case 0: - if (!n--) break; - } - - return; - } -#endif ia64_syscall_get_set_arguments(task, regs, i, n, args, 1); } #endif /* _ASM_SYSCALL_H */ diff --git a/arch/ia64/include/asm/system.h b/arch/ia64/include/asm/system.h index 927a381c20c..9f342a574ce 100644 --- a/arch/ia64/include/asm/system.h +++ b/arch/ia64/include/asm/system.h @@ -191,15 +191,6 @@ do { \ #ifdef __KERNEL__ -#ifdef CONFIG_IA32_SUPPORT -# define IS_IA32_PROCESS(regs) (ia64_psr(regs)->is != 0) -#else -# define IS_IA32_PROCESS(regs) 0 -struct task_struct; -static inline void ia32_save_state(struct task_struct *t __attribute__((unused))){} -static inline void ia32_load_state(struct task_struct *t __attribute__((unused))){} -#endif - /* * Context switch from one thread to another. If the two threads have * different address spaces, schedule() has already taken care of @@ -233,7 +224,7 @@ extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct #define IA64_HAS_EXTRA_STATE(t) \ ((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID) \ - || IS_IA32_PROCESS(task_pt_regs(t)) || PERFMON_IS_SYSWIDE()) + || PERFMON_IS_SYSWIDE()) #define __switch_to(prev,next,last) do { \ IA64_ACCOUNT_ON_SWITCH(prev, next); \ diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h index 10a8f21ca9e..bb8b0fff32b 100644 --- a/arch/ia64/include/asm/unistd.h +++ b/arch/ia64/include/asm/unistd.h @@ -335,20 +335,6 @@ #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND -#ifdef CONFIG_IA32_SUPPORT -# define __ARCH_WANT_SYS_FADVISE64 -# define __ARCH_WANT_SYS_GETPGRP -# define __ARCH_WANT_SYS_LLSEEK -# define __ARCH_WANT_SYS_NICE -# define __ARCH_WANT_SYS_OLD_GETRLIMIT -# define __ARCH_WANT_SYS_OLDUMOUNT -# define __ARCH_WANT_SYS_PAUSE -# define __ARCH_WANT_SYS_SIGPENDING -# define __ARCH_WANT_SYS_SIGPROCMASK -# define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND -# define __ARCH_WANT_COMPAT_SYS_TIME -#endif - #if !defined(__ASSEMBLY__) && !defined(ASSEMBLER) #include <linux/types.h> diff --git a/arch/ia64/kernel/audit.c b/arch/ia64/kernel/audit.c index f3802ae89b1..96a9d18ff4c 100644 --- a/arch/ia64/kernel/audit.c +++ b/arch/ia64/kernel/audit.c @@ -30,20 +30,11 @@ static unsigned signal_class[] = { int audit_classify_arch(int arch) { -#ifdef CONFIG_IA32_SUPPORT - if (arch == AUDIT_ARCH_I386) - return 1; -#endif return 0; } int audit_classify_syscall(int abi, unsigned syscall) { -#ifdef CONFIG_IA32_SUPPORT - extern int ia32_classify_syscall(unsigned); - if (abi == AUDIT_ARCH_I386) - return ia32_classify_syscall(syscall); -#endif switch(syscall) { case __NR_open: return 2; @@ -58,18 +49,6 @@ int audit_classify_syscall(int abi, unsigned syscall) static int __init audit_classes_init(void) { -#ifdef CONFIG_IA32_SUPPORT - extern __u32 ia32_dir_class[]; - extern __u32 ia32_write_class[]; - extern __u32 ia32_read_class[]; - extern __u32 ia32_chattr_class[]; - extern __u32 ia32_signal_class[]; - audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class); - audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class); - audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class); - audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class); - audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class); -#endif audit_register_class(AUDIT_CLASS_WRITE, write_class); audit_register_class(AUDIT_CLASS_READ, read_class); audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index d75b872ca4d..9a260b317d8 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -71,15 +71,6 @@ ENTRY(ia64_execve) add out3=16,sp // regs br.call.sptk.many rp=sys_execve .ret0: -#ifdef CONFIG_IA32_SUPPORT - /* - * Check if we're returning to ia32 mode. If so, we need to restore ia32 registers - * from pt_regs. - */ - adds r16=PT(CR_IPSR)+16,sp - ;; - ld8 r16=[r16] -#endif cmp4.ge p6,p7=r8,r0 mov ar.pfs=loc1 // restore ar.pfs sxt4 r8=r8 // return 64-bit result @@ -108,12 +99,6 @@ ENTRY(ia64_execve) ldf.fill f23=[sp]; ldf.fill f24=[sp]; mov f25=f0 ldf.fill f26=[sp]; ldf.fill f27=[sp]; mov f28=f0 ldf.fill f29=[sp]; ldf.fill f30=[sp]; mov f31=f0 -#ifdef CONFIG_IA32_SUPPORT - tbit.nz p6,p0=r16, IA64_PSR_IS_BIT - movl loc0=ia64_ret_from_ia32_execve - ;; -(p6) mov rp=loc0 -#endif br.ret.sptk.many rp END(ia64_execve) @@ -848,30 +833,6 @@ __paravirt_work_processed_syscall: br.cond.sptk.many rbs_switch // B END(__paravirt_leave_syscall) -#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE -#ifdef CONFIG_IA32_SUPPORT -GLOBAL_ENTRY(ia64_ret_from_ia32_execve) - PT_REGS_UNWIND_INFO(0) - adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8 - adds r3=PT(R10)+16,sp // r3 = &pt_regs.r10 - ;; - .mem.offset 0,0 - st8.spill [r2]=r8 // store return value in slot for r8 and set unat bit - .mem.offset 8,0 - st8.spill [r3]=r0 // clear error indication in slot for r10 and set unat bit -#ifdef CONFIG_PARAVIRT - ;; - // don't fall through, ia64_leave_kernel may be #define'd - br.cond.sptk.few ia64_leave_kernel - ;; -#endif /* CONFIG_PARAVIRT */ -END(ia64_ret_from_ia32_execve) -#ifndef CONFIG_PARAVIRT - // fall through -#endif -#endif /* CONFIG_IA32_SUPPORT */ -#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ - GLOBAL_ENTRY(__paravirt_leave_kernel) PT_REGS_UNWIND_INFO(0) /* diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S index ec9a5fdfa1b..179fd122e83 100644 --- a/arch/ia64/kernel/ivt.S +++ b/arch/ia64/kernel/ivt.S @@ -49,7 +49,6 @@ #include <asm/asmmacro.h> #include <asm/break.h> -#include <asm/ia32.h> #include <asm/kregs.h> #include <asm/asm-offsets.h> #include <asm/pgtable.h> @@ -1386,28 +1385,6 @@ END(ia32_exception) // 0x6a00 Entry 46 (size 16 bundles) IA-32 Intercept (30,31,59,70,71) ENTRY(ia32_intercept) DBG_FAULT(46) -#ifdef CONFIG_IA32_SUPPORT - mov r31=pr - MOV_FROM_ISR(r16) - ;; - extr.u r17=r16,16,8 // get ISR.code - mov r18=ar.eflag - MOV_FROM_IIM(r19) // old eflag value - ;; - cmp.ne p6,p0=2,r17 -(p6) br.cond.spnt 1f // not a system flag fault - xor r16=r18,r19 - ;; - extr.u r17=r16,18,1 // get the eflags.ac bit - ;; - cmp.eq p6,p0=0,r17 -(p6) br.cond.spnt 1f // eflags.ac bit didn't change - ;; - mov pr=r31,-1 // restore predicate registers - RFI - -1: -#endif // CONFIG_IA32_SUPPORT FAULT(46) END(ia32_intercept) @@ -1416,12 +1393,7 @@ END(ia32_intercept) // 0x6b00 Entry 47 (size 16 bundles) IA-32 Interrupt (74) ENTRY(ia32_interrupt) DBG_FAULT(47) -#ifdef CONFIG_IA32_SUPPORT - mov r31=pr - br.sptk.many dispatch_to_ia32_handler -#else FAULT(47) -#endif END(ia32_interrupt) .org ia64_ivt+0x6c00 @@ -1715,89 +1687,3 @@ ENTRY(dispatch_illegal_op_fault) (p6) br.call.dpnt.many b6=b6 // call returns to ia64_leave_kernel br.sptk.many ia64_leave_kernel END(dispatch_illegal_op_fault) - -#ifdef CONFIG_IA32_SUPPORT - - /* - * There is no particular reason for this code to be here, other than that - * there happens to be space here that would go unused otherwise. If this - * fault ever gets "unreserved", simply moved the following code to a more - * suitable spot... - */ - - // IA32 interrupt entry point - -ENTRY(dispatch_to_ia32_handler) - SAVE_MIN - ;; - MOV_FROM_ISR(r14) - SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r24) - // guarantee that interruption collection is on - ;; - SSM_PSR_I(p15, p15, r3) - adds r3=8,r2 // Base pointer for SAVE_REST - ;; - SAVE_REST - ;; - mov r15=0x80 - shr r14=r14,16 // Get interrupt number - ;; - cmp.ne p6,p0=r14,r15 -(p6) br.call.dpnt.many b6=non_ia32_syscall - - adds r14=IA64_PT_REGS_R8_OFFSET + 16,sp // 16 byte hole per SW conventions - adds r15=IA64_PT_REGS_R1_OFFSET + 16,sp - ;; - cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0 - ld8 r8=[r14] // get r8 - ;; - st8 [r15]=r8 // save original EAX in r1 (IA32 procs don't use the GP) - ;; - alloc r15=ar.pfs,0,0,6,0 // must first in an insn group - ;; - ld4 r8=[r14],8 // r8 == eax (syscall number) - mov r15=IA32_NR_syscalls - ;; - cmp.ltu.unc p6,p7=r8,r15 - ld4 out1=[r14],8 // r9 == ecx - ;; - ld4 out2=[r14],8 // r10 == edx - ;; - ld4 out0=[r14] // r11 == ebx - adds r14=(IA64_PT_REGS_R13_OFFSET) + 16,sp - ;; - ld4 out5=[r14],PT(R14)-PT(R13) // r13 == ebp - ;; - ld4 out3=[r14],PT(R15)-PT(R14) // r14 == esi - adds r2=TI_FLAGS+IA64_TASK_SIZE,r13 - ;; - ld4 out4=[r14] // r15 == edi - movl r16=ia32_syscall_table - ;; -(p6) shladd r16=r8,3,r16 // force ni_syscall if not valid syscall number - ld4 r2=[r2] // r2 = current_thread_info()->flags - ;; - ld8 r16=[r16] - and r2=_TIF_SYSCALL_TRACEAUDIT,r2 // mask trace or audit - ;; - mov b6=r16 - movl r15=ia32_ret_from_syscall - cmp.eq p8,p0=r2,r0 - ;; - mov rp=r15 -(p8) br.call.sptk.many b6=b6 - br.cond.sptk ia32_trace_syscall - -non_ia32_syscall: - alloc r15=ar.pfs,0,0,2,0 - mov out0=r14 // interrupt # - add out1=16,sp // pointer to pt_regs - ;; // avoid WAW on CFM - br.call.sptk.many rp=ia32_bad_interrupt -.ret1: movl r15=ia64_leave_kernel - ;; - mov rp=r15 - br.ret.sptk.many rp -END(dispatch_to_ia32_handler) - -#endif /* CONFIG_IA32_SUPPORT */ diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 9bcec9945c1..883ecc9cfef 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -33,7 +33,6 @@ #include <asm/cpu.h> #include <asm/delay.h> #include <asm/elf.h> -#include <asm/ia32.h> #include <asm/irq.h> #include <asm/kexec.h> #include <asm/pgalloc.h> @@ -358,11 +357,6 @@ ia64_save_extra (struct task_struct *task) if (info & PFM_CPUINFO_SYST_WIDE) pfm_syst_wide_update_task(task, info, 0); #endif - -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(task_pt_regs(task))) - ia32_save_state(task); -#endif } void @@ -383,11 +377,6 @@ ia64_load_extra (struct task_struct *task) if (info & PFM_CPUINFO_SYST_WIDE) pfm_syst_wide_update_task(task, info, 1); #endif - -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(task_pt_regs(task))) - ia32_load_state(task); -#endif } /* @@ -426,7 +415,7 @@ copy_thread(unsigned long clone_flags, unsigned long user_stack_base, unsigned long user_stack_size, struct task_struct *p, struct pt_regs *regs) { - extern char ia64_ret_from_clone, ia32_ret_from_clone; + extern char ia64_ret_from_clone; struct switch_stack *child_stack, *stack; unsigned long rbs, child_rbs, rbs_size; struct pt_regs *child_ptregs; @@ -457,7 +446,7 @@ copy_thread(unsigned long clone_flags, memcpy((void *) child_rbs, (void *) rbs, rbs_size); if (likely(user_mode(child_ptregs))) { - if ((clone_flags & CLONE_SETTLS) && !IS_IA32_PROCESS(regs)) + if (clone_flags & CLONE_SETTLS) child_ptregs->r13 = regs->r16; /* see sys_clone2() in entry.S */ if (user_stack_base) { child_ptregs->r12 = user_stack_base + user_stack_size - 16; @@ -477,10 +466,7 @@ copy_thread(unsigned long clone_flags, child_ptregs->r13 = (unsigned long) p; /* set `current' pointer */ } child_stack->ar_bspstore = child_rbs + rbs_size; - if (IS_IA32_PROCESS(regs)) - child_stack->b0 = (unsigned long) &ia32_ret_from_clone; - else - child_stack->b0 = (unsigned long) &ia64_ret_from_clone; + child_stack->b0 = (unsigned long) &ia64_ret_from_clone; /* copy parts of thread_struct: */ p->thread.ksp = (unsigned long) child_stack - 16; @@ -515,22 +501,6 @@ copy_thread(unsigned long clone_flags, p->thread.flags = ((current->thread.flags & ~THREAD_FLAGS_TO_CLEAR) | THREAD_FLAGS_TO_SET); ia64_drop_fpu(p); /* don't pick up stale state from a CPU's fph */ -#ifdef CONFIG_IA32_SUPPORT - /* - * If we're cloning an IA32 task then save the IA32 extra - * state from the current task to the new task - */ - if (IS_IA32_PROCESS(task_pt_regs(current))) { - ia32_save_state(p); - if (clone_flags & CLONE_SETTLS) - retval = ia32_clone_tls(p, child_ptregs); - - /* Copy partially mapped page list */ - if (!retval) - retval = ia32_copy_ia64_partial_page_list(p, - clone_flags); - } -#endif #ifdef CONFIG_PERFMON if (current->thread.pfm_context) @@ -704,15 +674,6 @@ EXPORT_SYMBOL(kernel_thread); int kernel_thread_helper (int (*fn)(void *), void *arg) { -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(task_pt_regs(current))) { - /* A kernel thread is always a 64-bit process. */ - current->thread.map_base = DEFAULT_MAP_BASE; - current->thread.task_size = DEFAULT_TASK_SIZE; - ia64_set_kr(IA64_KR_IO_BASE, current->thread.old_iob); - ia64_set_kr(IA64_KR_TSSD, current->thread.old_k1); - } -#endif return (*fn)(arg); } @@ -725,14 +686,6 @@ flush_thread (void) /* drop floating-point and debug-register state if it exists: */ current->thread.flags &= ~(IA64_THREAD_FPH_VALID | IA64_THREAD_DBG_VALID); ia64_drop_fpu(current); -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(task_pt_regs(current))) { - ia32_drop_ia64_partial_page_list(current); - current->thread.task_size = IA32_PAGE_OFFSET; - set_fs(USER_DS); - memset(current->thread.tls_array, 0, sizeof(current->thread.tls_array)); - } -#endif } /* @@ -753,8 +706,6 @@ exit_thread (void) if (current->thread.flags & IA64_THREAD_DBG_VALID) pfm_release_debug_registers(current); #endif - if (IS_IA32_PROCESS(task_pt_regs(current))) - ia32_drop_ia64_partial_page_list(current); } unsigned long diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 9daa87fdb01..b61afbbe076 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -1250,13 +1250,8 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3, long syscall; int arch; - if (IS_IA32_PROCESS(®s)) { - syscall = regs.r1; - arch = AUDIT_ARCH_I386; - } else { - syscall = regs.r15; - arch = AUDIT_ARCH_IA64; - } + syscall = regs.r15; + arch = AUDIT_ARCH_IA64; audit_syscall_entry(arch, syscall, arg0, arg1, arg2, arg3); } @@ -2172,11 +2167,6 @@ static const struct user_regset_view user_ia64_view = { const struct user_regset_view *task_user_regset_view(struct task_struct *tsk) { -#ifdef CONFIG_IA32_SUPPORT - extern const struct user_regset_view user_ia32_view; - if (IS_IA32_PROCESS(task_pt_regs(tsk))) - return &user_ia32_view; -#endif return &user_ia64_view; } diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index a1ea8791977..41ae6a596b5 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -46,7 +46,6 @@ #include <linux/kexec.h> #include <linux/crash_dump.h> -#include <asm/ia32.h> #include <asm/machvec.h> #include <asm/mca.h> #include <asm/meminit.h> @@ -1016,10 +1015,6 @@ cpu_init (void) ia64_mmu_init(ia64_imva(cpu_data)); ia64_mca_cpu_init(ia64_imva(cpu_data)); -#ifdef CONFIG_IA32_SUPPORT - ia32_cpu_init(); -#endif - /* Clear ITC to eliminate sched_clock() overflows in human time. */ ia64_set_itc(0); diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c index e1821ca4c7d..7bdafc8788b 100644 --- a/arch/ia64/kernel/signal.c +++ b/arch/ia64/kernel/signal.c @@ -21,7 +21,6 @@ #include <linux/unistd.h> #include <linux/wait.h> -#include <asm/ia32.h> #include <asm/intrinsics.h> #include <asm/uaccess.h> #include <asm/rse.h> @@ -425,14 +424,8 @@ static long handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct sigscratch *scr) { - if (IS_IA32_PROCESS(&scr->pt)) { - /* send signal to IA-32 process */ - if (!ia32_setup_frame1(sig, ka, info, oldset, &scr->pt)) - return 0; - } else - /* send signal to IA-64 process */ - if (!setup_frame(sig, ka, info, oldset, scr)) - return 0; + if (!setup_frame(sig, ka, info, oldset, scr)) + return 0; spin_lock_irq(¤t->sighand->siglock); sigorsets(¤t->blocked, ¤t->blocked, &ka->sa.sa_mask); @@ -462,7 +455,6 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall) siginfo_t info; long restart = in_syscall; long errno = scr->pt.r8; -# define ERR_CODE(c) (IS_IA32_PROCESS(&scr->pt) ? -(c) : (c)) /* * In the ia64_leave_kernel code path, we want the common case to go fast, which @@ -490,14 +482,7 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall) * inferior call), thus it's important to check for restarting _after_ * get_signal_to_deliver(). */ - if (IS_IA32_PROCESS(&scr->pt)) { - if (in_syscall) { - if (errno >= 0) - restart = 0; - else - errno = -errno; - } - } else if ((long) scr->pt.r10 != -1) + if ((long) scr->pt.r10 != -1) /* * A system calls has to be restarted only if one of the error codes * ERESTARTNOHAND, ERESTARTSYS, or ERESTARTNOINTR is returned. If r10 @@ -513,22 +498,18 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall) switch (errno) { case ERESTART_RESTARTBLOCK: case ERESTARTNOHAND: - scr->pt.r8 = ERR_CODE(EINTR); + scr->pt.r8 = EINTR; /* note: scr->pt.r10 is already -1 */ break; case ERESTARTSYS: if ((ka.sa.sa_flags & SA_RESTART) == 0) { - scr->pt.r8 = ERR_CODE(EINTR); + scr->pt.r8 = EINTR; /* note: scr->pt.r10 is already -1 */ break; } case ERESTARTNOINTR: - if (IS_IA32_PROCESS(&scr->pt)) { - scr->pt.r8 = scr->pt.r1; - scr->pt.cr_iip -= 2; - } else - ia64_decrement_ip(&scr->pt); + ia64_decrement_ip(&scr->pt); restart = 0; /* don't restart twice if handle_signal() fails... */ } } @@ -555,21 +536,14 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall) if (errno == ERESTARTNOHAND || errno == ERESTARTSYS || errno == ERESTARTNOINTR || errno == ERESTART_RESTARTBLOCK) { - if (IS_IA32_PROCESS(&scr->pt)) { - scr->pt.r8 = scr->pt.r1; - scr->pt.cr_iip -= 2; - if (errno == ERESTART_RESTARTBLOCK) - scr->pt.r8 = 0; /* x86 version of __NR_restart_syscall */ - } else { - /* - * Note: the syscall number is in r15 which is saved in - * pt_regs so all we need to do here is adjust ip so that - * the "break" instruction gets re-executed. - */ - ia64_decrement_ip(&scr->pt); - if (errno == ERESTART_RESTARTBLOCK) - scr->pt.r15 = __NR_restart_syscall; - } + /* + * Note: the syscall number is in r15 which is saved in + * pt_regs so all we need to do here is adjust ip so that + * the "break" instruction gets re-executed. + */ + ia64_decrement_ip(&scr->pt); + if (errno == ERESTART_RESTARTBLOCK) + scr->pt.r15 = __NR_restart_syscall; } } diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index de100aa7ff0..e5230b2ff2c 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -44,7 +44,6 @@ #include <asm/cache.h> #include <asm/current.h> #include <asm/delay.h> -#include <asm/ia32.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/machvec.h> @@ -443,10 +442,6 @@ smp_callin (void) calibrate_delay(); local_cpu_data->loops_per_jiffy = loops_per_jiffy; -#ifdef CONFIG_IA32_SUPPORT - ia32_gdt_init(); -#endif - /* * Allow the master to continue. */ diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index f0cda765e68..fd80e70018a 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -19,7 +19,6 @@ #include <linux/kdebug.h> #include <asm/fpswa.h> -#include <asm/ia32.h> #include <asm/intrinsics.h> #include <asm/processor.h> #include <asm/uaccess.h> @@ -626,10 +625,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa, break; case 45: -#ifdef CONFIG_IA32_SUPPORT - if (ia32_exception(®s, isr) == 0) - return; -#endif printk(KERN_ERR "Unexpected IA-32 exception (Trap 45)\n"); printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx\n", iip, ifa, isr); @@ -637,10 +632,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa, break; case 46: -#ifdef CONFIG_IA32_SUPPORT - if (ia32_intercept(®s, isr) == 0) - return; -#endif printk(KERN_ERR "Unexpected IA-32 intercept trap (Trap 46)\n"); printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx, iim - 0x%lx\n", iip, ifa, isr, iim); diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 7c0d4814a68..ca3335ea56c 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -22,7 +22,6 @@ #include <linux/kexec.h> #include <asm/dma.h> -#include <asm/ia32.h> #include <asm/io.h> #include <asm/machvec.h> #include <asm/numa.h> @@ -668,10 +667,6 @@ mem_init (void) fsyscall_table[i] = sys_call_table[i] | 1; } setup_gate(); - -#ifdef CONFIG_IA32_SUPPORT - ia32_mem_init(); -#endif } #ifdef CONFIG_MEMORY_HOTPLUG diff --git a/arch/ia64/xen/hypercall.S b/arch/ia64/xen/hypercall.S index e32dae444dd..08847aa1258 100644 --- a/arch/ia64/xen/hypercall.S +++ b/arch/ia64/xen/hypercall.S @@ -58,11 +58,6 @@ __HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA) __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR) __HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR) -#ifdef CONFIG_IA32_SUPPORT -__HCALL0(xen_get_eflag, HYPERPRIVOP_GET_EFLAG) -__HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG) // refer SDM vol1 3.1.8 -#endif /* CONFIG_IA32_SUPPORT */ - GLOBAL_ENTRY(xen_set_rr0_to_rr4) mov r8=r32 mov r9=r33 diff --git a/arch/ia64/xen/xen_pv_ops.c b/arch/ia64/xen/xen_pv_ops.c index 5e2270a999f..8adc6a14272 100644 --- a/arch/ia64/xen/xen_pv_ops.c +++ b/arch/ia64/xen/xen_pv_ops.c @@ -301,11 +301,6 @@ static void xen_setreg(int regnum, unsigned long val) case _IA64_REG_AR_KR0 ... _IA64_REG_AR_KR7: xen_set_kr(regnum - _IA64_REG_AR_KR0, val); break; -#ifdef CONFIG_IA32_SUPPORT - case _IA64_REG_AR_EFLAG: - xen_set_eflag(val); - break; -#endif case _IA64_REG_AR_ITC: xen_set_itc(val); break; @@ -332,11 +327,6 @@ static unsigned long xen_getreg(int regnum) case _IA64_REG_PSR: res = xen_get_psr(); break; -#ifdef CONFIG_IA32_SUPPORT - case _IA64_REG_AR_EFLAG: - res = xen_get_eflag(); - break; -#endif case _IA64_REG_AR_ITC: res = xen_get_itc(); break; @@ -710,9 +700,6 @@ extern unsigned long xen_getreg(int regnum); __DEFINE_FUNC(getreg, __DEFINE_GET_REG(PSR, PSR) -#ifdef CONFIG_IA32_SUPPORT - __DEFINE_GET_REG(AR_EFLAG, EFLAG) -#endif /* get_itc */ "mov r2 = " __stringify(_IA64_REG_AR_ITC) "\n" @@ -789,9 +776,6 @@ __DEFINE_FUNC(setreg, ";;\n" "(p6) br.cond.spnt xen_set_itc\n" -#ifdef CONFIG_IA32_SUPPORT - __DEFINE_SET_REG(AR_EFLAG, SET_EFLAG) -#endif __DEFINE_SET_REG(CR_TPR, SET_TPR) __DEFINE_SET_REG(CR_EOI, EOI) diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h index 47cd9eaee66..4d8ea32e8a0 100644 --- a/drivers/input/input-compat.h +++ b/drivers/input/input-compat.h @@ -21,8 +21,6 @@ you why the ifdefs are needed? Think about it again. -AK */ #ifdef CONFIG_X86_64 # define INPUT_COMPAT_TEST is_compat_task() -#elif defined(CONFIG_IA64) -# define INPUT_COMPAT_TEST IS_IA32_PROCESS(task_pt_regs(current)) #elif defined(CONFIG_S390) # define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT) #elif defined(CONFIG_MIPS) |