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-rw-r--r--arch/x86/ia32/Makefile3
-rw-r--r--arch/x86/ia32/ia32_aout.c170
-rw-r--r--arch/x86/ia32/ia32_signal.c183
-rw-r--r--arch/x86/ia32/ia32entry.S41
-rw-r--r--arch/x86/ia32/ipc32.c54
-rw-r--r--arch/x86/ia32/sys_ia32.c317
6 files changed, 150 insertions, 618 deletions
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index 455646e0e53..e785b422b76 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -5,9 +5,6 @@
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o
obj-$(CONFIG_IA32_EMULATION) += nosyscall.o syscall_ia32.o
-sysv-$(CONFIG_SYSVIPC) := ipc32.o
-obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
-
obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
audit-class-$(CONFIG_AUDIT) := audit.o
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 39e49091f64..d21ff89207c 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -25,8 +25,8 @@
#include <linux/personality.h>
#include <linux/init.h>
#include <linux/jiffies.h>
+#include <linux/perf_event.h>
-#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/cacheflush.h>
@@ -34,14 +34,18 @@
#include <asm/ia32.h>
#undef WARN_OLD
-#undef CORE_DUMP /* definitely broken */
-static int load_aout_binary(struct linux_binprm *, struct pt_regs *regs);
+static int load_aout_binary(struct linux_binprm *);
static int load_aout_library(struct file *);
-#ifdef CORE_DUMP
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
- unsigned long limit);
+#ifdef CONFIG_COREDUMP
+static int aout_core_dump(struct coredump_params *);
+
+static unsigned long get_dr(int n)
+{
+ struct perf_event *bp = current->thread.ptrace_bps[n];
+ return bp ? bp->hw.info.address : 0;
+}
/*
* fill in the user structure for a core dump..
@@ -49,6 +53,7 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
{
u32 fs, gs;
+ memset(dump, 0, sizeof(*dump));
/* changed the size calculations - should hopefully work better. lbt */
dump->magic = CMAGIC;
@@ -58,15 +63,12 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
dump->u_dsize = ((unsigned long)
(current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
dump->u_dsize -= dump->u_tsize;
- dump->u_ssize = 0;
- dump->u_debugreg[0] = current->thread.debugreg0;
- dump->u_debugreg[1] = current->thread.debugreg1;
- dump->u_debugreg[2] = current->thread.debugreg2;
- dump->u_debugreg[3] = current->thread.debugreg3;
- dump->u_debugreg[4] = 0;
- dump->u_debugreg[5] = 0;
+ dump->u_debugreg[0] = get_dr(0);
+ dump->u_debugreg[1] = get_dr(1);
+ dump->u_debugreg[2] = get_dr(2);
+ dump->u_debugreg[3] = get_dr(3);
dump->u_debugreg[6] = current->thread.debugreg6;
- dump->u_debugreg[7] = current->thread.debugreg7;
+ dump->u_debugreg[7] = current->thread.ptrace_dr7;
if (dump->start_stack < 0xc0000000) {
unsigned long tmp;
@@ -75,24 +77,24 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
dump->u_ssize = tmp >> PAGE_SHIFT;
}
- dump->regs.bx = regs->bx;
- dump->regs.cx = regs->cx;
- dump->regs.dx = regs->dx;
- dump->regs.si = regs->si;
- dump->regs.di = regs->di;
- dump->regs.bp = regs->bp;
- dump->regs.ax = regs->ax;
+ dump->regs.ebx = regs->bx;
+ dump->regs.ecx = regs->cx;
+ dump->regs.edx = regs->dx;
+ dump->regs.esi = regs->si;
+ dump->regs.edi = regs->di;
+ dump->regs.ebp = regs->bp;
+ dump->regs.eax = regs->ax;
dump->regs.ds = current->thread.ds;
dump->regs.es = current->thread.es;
savesegment(fs, fs);
dump->regs.fs = fs;
savesegment(gs, gs);
dump->regs.gs = gs;
- dump->regs.orig_ax = regs->orig_ax;
- dump->regs.ip = regs->ip;
+ dump->regs.orig_eax = regs->orig_ax;
+ dump->regs.eip = regs->ip;
dump->regs.cs = regs->cs;
- dump->regs.flags = regs->flags;
- dump->regs.sp = regs->sp;
+ dump->regs.eflags = regs->flags;
+ dump->regs.esp = regs->sp;
dump->regs.ss = regs->ss;
#if 1 /* FIXME */
@@ -108,7 +110,7 @@ static struct linux_binfmt aout_format = {
.module = THIS_MODULE,
.load_binary = load_aout_binary,
.load_shlib = load_aout_library,
-#ifdef CORE_DUMP
+#ifdef CONFIG_COREDUMP
.core_dump = aout_core_dump,
#endif
.min_coredump = PAGE_SIZE
@@ -120,12 +122,10 @@ static void set_brk(unsigned long start, unsigned long end)
end = PAGE_ALIGN(end);
if (end <= start)
return;
- down_write(&current->mm->mmap_sem);
- do_brk(start, end - start);
- up_write(&current->mm->mmap_sem);
+ vm_brk(start, end - start);
}
-#ifdef CORE_DUMP
+#ifdef CONFIG_COREDUMP
/*
* These are the only things you should do on a core-file: use only these
* macros to write out all the necessary info.
@@ -133,15 +133,7 @@ static void set_brk(unsigned long start, unsigned long end)
#include <linux/coredump.h>
-#define DUMP_WRITE(addr, nr) \
- if (!dump_write(file, (void *)(addr), (nr))) \
- goto end_coredump;
-
-#define DUMP_SEEK(offset) \
- if (!dump_seek(file, offset)) \
- goto end_coredump;
-
-#define START_DATA() (u.u_tsize << PAGE_SHIFT)
+#define START_DATA(u) (u.u_tsize << PAGE_SHIFT)
#define START_STACK(u) (u.start_stack)
/*
@@ -154,8 +146,7 @@ static void set_brk(unsigned long start, unsigned long end)
* dumping of the process results in another error..
*/
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
- unsigned long limit)
+static int aout_core_dump(struct coredump_params *cprm)
{
mm_segment_t fs;
int has_dumped = 0;
@@ -165,22 +156,21 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
fs = get_fs();
set_fs(KERNEL_DS);
has_dumped = 1;
- current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(current->comm));
dump.u_ar0 = offsetof(struct user32, regs);
- dump.signal = signr;
- dump_thread32(regs, &dump);
+ dump.signal = cprm->siginfo->si_signo;
+ dump_thread32(cprm->regs, &dump);
/*
* If the size of the dump file exceeds the rlimit, then see
* what would happen if we wrote the stack, but not the data
* area.
*/
- if ((dump.u_dsize + dump.u_ssize + 1) * PAGE_SIZE > limit)
+ if ((dump.u_dsize + dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
dump.u_dsize = 0;
/* Make sure we have enough room to write the stack and data areas. */
- if ((dump.u_ssize + 1) * PAGE_SIZE > limit)
+ if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
dump.u_ssize = 0;
/* make sure we actually have a data and stack area to dump */
@@ -194,22 +184,26 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
set_fs(KERNEL_DS);
/* struct user */
- DUMP_WRITE(&dump, sizeof(dump));
+ if (!dump_emit(cprm, &dump, sizeof(dump)))
+ goto end_coredump;
/* Now dump all of the user data. Include malloced stuff as well */
- DUMP_SEEK(PAGE_SIZE);
+ if (!dump_skip(cprm, PAGE_SIZE - sizeof(dump)))
+ goto end_coredump;
/* now we start writing out the user space info */
set_fs(USER_DS);
/* Dump the data area */
if (dump.u_dsize != 0) {
dump_start = START_DATA(dump);
dump_size = dump.u_dsize << PAGE_SHIFT;
- DUMP_WRITE(dump_start, dump_size);
+ if (!dump_emit(cprm, (void *)dump_start, dump_size))
+ goto end_coredump;
}
/* Now prepare to dump the stack area */
if (dump.u_ssize != 0) {
dump_start = START_STACK(dump);
dump_size = dump.u_ssize << PAGE_SHIFT;
- DUMP_WRITE(dump_start, dump_size);
+ if (!dump_emit(cprm, (void *)dump_start, dump_size))
+ goto end_coredump;
}
end_coredump:
set_fs(fs);
@@ -263,9 +257,10 @@ static u32 __user *create_aout_tables(char __user *p, struct linux_binprm *bprm)
* These are the functions used to load a.out style executables and shared
* libraries. There is no binary dependent code anywhere else.
*/
-static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
+static int load_aout_binary(struct linux_binprm *bprm)
{
unsigned long error, fd_offset, rlim;
+ struct pt_regs *regs = current_pt_regs();
struct exec ex;
int retval;
@@ -273,7 +268,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != OMAGIC &&
N_MAGIC(ex) != QMAGIC && N_MAGIC(ex) != NMAGIC) ||
N_TRSIZE(ex) || N_DRSIZE(ex) ||
- i_size_read(bprm->file->f_path.dentry->d_inode) <
+ i_size_read(file_inode(bprm->file)) <
ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
return -ENOEXEC;
}
@@ -297,8 +292,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
/* OK, This is the point of no return */
set_personality(PER_LINUX);
- set_thread_flag(TIF_IA32);
- current->mm->context.ia32_compat = 1;
+ set_personality_ia32(false);
setup_new_exec(bprm);
@@ -312,8 +306,6 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
(current->mm->start_data = N_DATADDR(ex));
current->mm->brk = ex.a_bss +
(current->mm->start_brk = N_BSSADDR(ex));
- current->mm->free_area_cache = TASK_UNMAPPED_BASE;
- current->mm->cached_hole_size = 0;
retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
if (retval < 0) {
@@ -323,35 +315,26 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
}
install_exec_creds(bprm);
- current->flags &= ~PF_FORKNOEXEC;
if (N_MAGIC(ex) == OMAGIC) {
unsigned long text_addr, map_size;
- loff_t pos;
text_addr = N_TXTADDR(ex);
-
- pos = 32;
map_size = ex.a_text+ex.a_data;
- down_write(&current->mm->mmap_sem);
- error = do_brk(text_addr & PAGE_MASK, map_size);
- up_write(&current->mm->mmap_sem);
+ error = vm_brk(text_addr & PAGE_MASK, map_size);
if (error != (text_addr & PAGE_MASK)) {
send_sig(SIGKILL, current, 0);
return error;
}
- error = bprm->file->f_op->read(bprm->file,
- (char __user *)text_addr,
- ex.a_text+ex.a_data, &pos);
+ error = read_code(bprm->file, text_addr, 32,
+ ex.a_text + ex.a_data);
if ((signed long)error < 0) {
send_sig(SIGKILL, current, 0);
return error;
}
-
- flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data);
} else {
#ifdef WARN_OLD
static unsigned long error_time, error_time2;
@@ -373,40 +356,28 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
#endif
if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) {
- loff_t pos = fd_offset;
-
- down_write(&current->mm->mmap_sem);
- do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
- up_write(&current->mm->mmap_sem);
- bprm->file->f_op->read(bprm->file,
- (char __user *)N_TXTADDR(ex),
- ex.a_text+ex.a_data, &pos);
- flush_icache_range((unsigned long) N_TXTADDR(ex),
- (unsigned long) N_TXTADDR(ex) +
- ex.a_text+ex.a_data);
+ vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
+ read_code(bprm->file, N_TXTADDR(ex), fd_offset,
+ ex.a_text+ex.a_data);
goto beyond_if;
}
- down_write(&current->mm->mmap_sem);
- error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
+ error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
PROT_READ | PROT_EXEC,
MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
MAP_EXECUTABLE | MAP_32BIT,
fd_offset);
- up_write(&current->mm->mmap_sem);
if (error != N_TXTADDR(ex)) {
send_sig(SIGKILL, current, 0);
return error;
}
- down_write(&current->mm->mmap_sem);
- error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
+ error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
MAP_EXECUTABLE | MAP_32BIT,
fd_offset + ex.a_text);
- up_write(&current->mm->mmap_sem);
if (error != N_DATADDR(ex)) {
send_sig(SIGKILL, current, 0);
return error;
@@ -437,12 +408,10 @@ beyond_if:
static int load_aout_library(struct file *file)
{
- struct inode *inode;
unsigned long bss, start_addr, len, error;
int retval;
struct exec ex;
- inode = file->f_path.dentry->d_inode;
retval = -ENOEXEC;
error = kernel_read(file, 0, (char *) &ex, sizeof(ex));
@@ -452,7 +421,7 @@ static int load_aout_library(struct file *file)
/* We come in here for the regular a.out style of shared libraries */
if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != QMAGIC) || N_TRSIZE(ex) ||
N_DRSIZE(ex) || ((ex.a_entry & 0xfff) && N_MAGIC(ex) == ZMAGIC) ||
- i_size_read(inode) <
+ i_size_read(file_inode(file)) <
ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
goto out;
}
@@ -466,8 +435,6 @@ static int load_aout_library(struct file *file)
start_addr = ex.a_entry & 0xfffff000;
if ((N_TXTOFF(ex) & ~PAGE_MASK) != 0) {
- loff_t pos = N_TXTOFF(ex);
-
#ifdef WARN_OLD
static unsigned long error_time;
if (time_after(jiffies, error_time + 5*HZ)) {
@@ -478,26 +445,18 @@ static int load_aout_library(struct file *file)
error_time = jiffies;
}
#endif
- down_write(&current->mm->mmap_sem);
- do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
- up_write(&current->mm->mmap_sem);
-
- file->f_op->read(file, (char __user *)start_addr,
- ex.a_text + ex.a_data, &pos);
- flush_icache_range((unsigned long) start_addr,
- (unsigned long) start_addr + ex.a_text +
- ex.a_data);
+ vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
+ read_code(file, start_addr, N_TXTOFF(ex),
+ ex.a_text + ex.a_data);
retval = 0;
goto out;
}
/* Now use mmap to map the library into memory. */
- down_write(&current->mm->mmap_sem);
- error = do_mmap(file, start_addr, ex.a_text + ex.a_data,
+ error = vm_mmap(file, start_addr, ex.a_text + ex.a_data,
PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_32BIT,
N_TXTOFF(ex));
- up_write(&current->mm->mmap_sem);
retval = error;
if (error != start_addr)
goto out;
@@ -505,9 +464,7 @@ static int load_aout_library(struct file *file)
len = PAGE_ALIGN(ex.a_text + ex.a_data);
bss = ex.a_text + ex.a_data + ex.a_bss;
if (bss > len) {
- down_write(&current->mm->mmap_sem);
- error = do_brk(start_addr + len, bss - len);
- up_write(&current->mm->mmap_sem);
+ error = vm_brk(start_addr + len, bss - len);
retval = error;
if (error != start_addr + len)
goto out;
@@ -519,7 +476,8 @@ out:
static int __init init_aout_binfmt(void)
{
- return register_binfmt(&aout_format);
+ register_binfmt(&aout_format);
+ return 0;
}
static void __exit exit_aout_binfmt(void)
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 65577698cab..f9e181aaba9 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -12,10 +12,8 @@
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
-#include <linux/signal.h>
#include <linux/errno.h>
#include <linux/wait.h>
-#include <linux/ptrace.h>
#include <linux/unistd.h>
#include <linux/stddef.h>
#include <linux/personality.h>
@@ -24,6 +22,7 @@
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/i387.h>
+#include <asm/fpu-internal.h>
#include <asm/ptrace.h>
#include <asm/ia32_unistd.h>
#include <asm/user32.h>
@@ -31,20 +30,14 @@
#include <asm/proto.h>
#include <asm/vdso.h>
#include <asm/sigframe.h>
+#include <asm/sighandling.h>
#include <asm/sys_ia32.h>
+#include <asm/smap.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-#define FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
- X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
- X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
- X86_EFLAGS_CF)
-
-void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
-
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
{
int err = 0;
+ bool ia32 = test_thread_flag(TIF_IA32);
if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
return -EFAULT;
@@ -73,9 +66,18 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
switch (from->si_code >> 16) {
case __SI_FAULT >> 16:
break;
+ case __SI_SYS >> 16:
+ put_user_ex(from->si_syscall, &to->si_syscall);
+ put_user_ex(from->si_arch, &to->si_arch);
+ break;
case __SI_CHLD >> 16:
- put_user_ex(from->si_utime, &to->si_utime);
- put_user_ex(from->si_stime, &to->si_stime);
+ if (ia32) {
+ put_user_ex(from->si_utime, &to->si_utime);
+ put_user_ex(from->si_stime, &to->si_stime);
+ } else {
+ put_user_ex(from->si_utime, &to->_sifields._sigchld_x32._utime);
+ put_user_ex(from->si_stime, &to->_sifields._sigchld_x32._stime);
+ }
put_user_ex(from->si_status, &to->si_status);
/* FALL THROUGH */
default:
@@ -125,68 +127,6 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
return err;
}
-asmlinkage long sys32_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
- sigset_t blocked;
-
- current->saved_sigmask = current->blocked;
-
- mask &= _BLOCKABLE;
- siginitset(&blocked, mask);
- set_current_blocked(&blocked);
-
- current->state = TASK_INTERRUPTIBLE;
- schedule();
-
- set_restore_sigmask();
- return -ERESTARTNOHAND;
-}
-
-asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
- stack_ia32_t __user *uoss_ptr,
- struct pt_regs *regs)
-{
- stack_t uss, uoss;
- int ret, err = 0;
- mm_segment_t seg;
-
- if (uss_ptr) {
- u32 ptr;
-
- memset(&uss, 0, sizeof(stack_t));
- if (!access_ok(VERIFY_READ, uss_ptr, sizeof(stack_ia32_t)))
- return -EFAULT;
-
- get_user_try {
- get_user_ex(ptr, &uss_ptr->ss_sp);
- get_user_ex(uss.ss_flags, &uss_ptr->ss_flags);
- get_user_ex(uss.ss_size, &uss_ptr->ss_size);
- } get_user_catch(err);
-
- if (err)
- return -EFAULT;
- uss.ss_sp = compat_ptr(ptr);
- }
- seg = get_fs();
- set_fs(KERNEL_DS);
- ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->sp);
- set_fs(seg);
- if (ret >= 0 && uoss_ptr) {
- if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t)))
- return -EFAULT;
-
- put_user_try {
- put_user_ex(ptr_to_compat(uoss.ss_sp), &uoss_ptr->ss_sp);
- put_user_ex(uoss.ss_flags, &uoss_ptr->ss_flags);
- put_user_ex(uoss.ss_size, &uoss_ptr->ss_size);
- } put_user_catch(err);
-
- if (err)
- ret = -EFAULT;
- }
- return ret;
-}
-
/*
* Do a signal return; undo the signal stack.
*/
@@ -257,16 +197,18 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
get_user_ex(tmp, &sc->fpstate);
buf = compat_ptr(tmp);
- err |= restore_i387_xstate_ia32(buf);
get_user_ex(*pax, &sc->ax);
} get_user_catch(err);
+ err |= restore_xstate_sig(buf, 1);
+
return err;
}
-asmlinkage long sys32_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_sigreturn(void)
{
+ struct pt_regs *regs = current_pt_regs();
struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(regs->sp-8);
sigset_t set;
unsigned int ax;
@@ -280,7 +222,6 @@ asmlinkage long sys32_sigreturn(struct pt_regs *regs)
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (ia32_restore_sigcontext(regs, &frame->sc, &ax))
@@ -292,12 +233,12 @@ badframe:
return 0;
}
-asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_rt_sigreturn(void)
{
+ struct pt_regs *regs = current_pt_regs();
struct rt_sigframe_ia32 __user *frame;
sigset_t set;
unsigned int ax;
- struct pt_regs tregs;
frame = (struct rt_sigframe_ia32 __user *)(regs->sp - 4);
@@ -306,14 +247,12 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
goto badframe;
- tregs = *regs;
- if (sys32_sigaltstack(&frame->uc.uc_stack, NULL, &tregs) == -EFAULT)
+ if (compat_restore_altstack(&frame->uc.uc_stack))
goto badframe;
return ax;
@@ -347,7 +286,7 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
put_user_ex(regs->dx, &sc->dx);
put_user_ex(regs->cx, &sc->cx);
put_user_ex(regs->ax, &sc->ax);
- put_user_ex(current->thread.trap_no, &sc->trapno);
+ put_user_ex(current->thread.trap_nr, &sc->trapno);
put_user_ex(current->thread.error_code, &sc->err);
put_user_ex(regs->ip, &sc->ip);
put_user_ex(regs->cs, (unsigned int __user *)&sc->cs);
@@ -368,9 +307,9 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
/*
* Determine which stack to use..
*/
-static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
+static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
size_t frame_size,
- void **fpstate)
+ void __user **fpstate)
{
unsigned long sp;
@@ -378,21 +317,21 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
sp = regs->sp;
/* This is the X/Open sanctioned signal stack switching. */
- if (ka->sa.sa_flags & SA_ONSTACK) {
- if (sas_ss_flags(sp) == 0)
- sp = current->sas_ss_sp + current->sas_ss_size;
- }
-
+ if (ksig->ka.sa.sa_flags & SA_ONSTACK)
+ sp = sigsp(sp, ksig);
/* This is the legacy signal stack switching. */
else if ((regs->ss & 0xffff) != __USER32_DS &&
- !(ka->sa.sa_flags & SA_RESTORER) &&
- ka->sa.sa_restorer)
- sp = (unsigned long) ka->sa.sa_restorer;
+ !(ksig->ka.sa.sa_flags & SA_RESTORER) &&
+ ksig->ka.sa.sa_restorer)
+ sp = (unsigned long) ksig->ka.sa.sa_restorer;
if (used_math()) {
- sp = sp - sig_xstate_ia32_size;
- *fpstate = (struct _fpstate_ia32 *) sp;
- if (save_i387_xstate_ia32(*fpstate) < 0)
+ unsigned long fx_aligned, math_size;
+
+ sp = alloc_mathframe(sp, 1, &fx_aligned, &math_size);
+ *fpstate = (struct _fpstate_ia32 __user *) sp;
+ if (save_xstate_sig(*fpstate, (void __user *)fx_aligned,
+ math_size) < 0)
return (void __user *) -1L;
}
@@ -403,7 +342,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
return (void __user *) sp;
}
-int ia32_setup_frame(int sig, struct k_sigaction *ka,
+int ia32_setup_frame(int sig, struct ksignal *ksig,
compat_sigset_t *set, struct pt_regs *regs)
{
struct sigframe_ia32 __user *frame;
@@ -422,7 +361,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
0x80cd, /* int $0x80 */
};
- frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
+ frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
return -EFAULT;
@@ -439,13 +378,13 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
return -EFAULT;
}
- if (ka->sa.sa_flags & SA_RESTORER) {
- restorer = ka->sa.sa_restorer;
+ if (ksig->ka.sa.sa_flags & SA_RESTORER) {
+ restorer = ksig->ka.sa.sa_restorer;
} else {
/* Return stub is in 32bit vsyscall page */
if (current->mm->context.vdso)
- restorer = VDSO32_SYMBOL(current->mm->context.vdso,
- sigreturn);
+ restorer = current->mm->context.vdso +
+ selected_vdso32->sym___kernel_sigreturn;
else
restorer = &frame->retcode;
}
@@ -457,7 +396,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
* These are actually not used anymore, but left because some
* gdb versions depend on them as a marker.
*/
- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode);
+ put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
} put_user_catch(err);
if (err)
@@ -465,7 +404,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
/* Set up registers for signal handler */
regs->sp = (unsigned long) frame;
- regs->ip = (unsigned long) ka->sa.sa_handler;
+ regs->ip = (unsigned long) ksig->ka.sa.sa_handler;
/* Make -mregparm=3 work */
regs->ax = sig;
@@ -481,7 +420,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
return 0;
}
-int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
compat_sigset_t *set, struct pt_regs *regs)
{
struct rt_sigframe_ia32 __user *frame;
@@ -502,7 +441,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
0,
};
- frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
+ frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
return -EFAULT;
@@ -511,7 +450,6 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
put_user_ex(sig, &frame->sig);
put_user_ex(ptr_to_compat(&frame->info), &frame->pinfo);
put_user_ex(ptr_to_compat(&frame->uc), &frame->puc);
- err |= copy_siginfo_to_user32(&frame->info, info);
/* Create the ucontext. */
if (cpu_has_xsave)
@@ -519,34 +457,33 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
else
put_user_ex(0, &frame->uc.uc_flags);
put_user_ex(0, &frame->uc.uc_link);
- put_user_ex(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
- put_user_ex(sas_ss_flags(regs->sp),
- &frame->uc.uc_stack.ss_flags);
- put_user_ex(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, fpstate,
- regs, set->sig[0]);
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ka->sa.sa_restorer;
+ compat_save_altstack_ex(&frame->uc.uc_stack, regs->sp);
+
+ if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ restorer = ksig->ka.sa.sa_restorer;
else
- restorer = VDSO32_SYMBOL(current->mm->context.vdso,
- rt_sigreturn);
+ restorer = current->mm->context.vdso +
+ selected_vdso32->sym___kernel_rt_sigreturn;
put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
/*
* Not actually used anymore, but left because some gdb
* versions need it.
*/
- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode);
+ put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
} put_user_catch(err);
+ err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
+ err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, fpstate,
+ regs, set->sig[0]);
+ err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
if (err)
return -EFAULT;
/* Set up registers for signal handler */
regs->sp = (unsigned long) frame;
- regs->ip = (unsigned long) ka->sa.sa_handler;
+ regs->ip = (unsigned long) ksig->ka.sa.sa_handler;
/* Make -mregparm=3 work */
regs->ax = sig;
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index e3e734005e1..4299eb05023 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -13,6 +13,8 @@
#include <asm/thread_info.h>
#include <asm/segment.h>
#include <asm/irqflags.h>
+#include <asm/asm.h>
+#include <asm/smap.h>
#include <linux/linkage.h>
#include <linux/err.h>
@@ -145,10 +147,10 @@ ENTRY(ia32_sysenter_target)
SAVE_ARGS 0,1,0
/* no need to do an access_ok check here because rbp has been
32bit zero extended */
+ ASM_STAC
1: movl (%rbp),%ebp
- .section __ex_table,"a"
- .quad 1b,ia32_badarg
- .previous
+ _ASM_EXTABLE(1b,ia32_badarg)
+ ASM_CLAC
orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
CFI_REMEMBER_STATE
@@ -205,7 +207,7 @@ sysexit_from_sys_call:
testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
jnz ia32_ret_from_sys_call
TRACE_IRQS_ON
- sti
+ ENABLE_INTERRUPTS(CLBR_NONE)
movl %eax,%esi /* second arg, syscall return value */
cmpl $-MAX_ERRNO,%eax /* is it an error ? */
jbe 1f
@@ -215,7 +217,7 @@ sysexit_from_sys_call:
call __audit_syscall_exit
movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */
movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
- cli
+ DISABLE_INTERRUPTS(CLBR_NONE)
TRACE_IRQS_OFF
testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
jz \exit
@@ -302,10 +304,10 @@ ENTRY(ia32_cstar_target)
/* no need to do an access_ok check here because r8 has been
32bit zero extended */
/* hardware stack frame is complete now */
+ ASM_STAC
1: movl (%r8),%r9d
- .section __ex_table,"a"
- .quad 1b,ia32_badarg
- .previous
+ _ASM_EXTABLE(1b,ia32_badarg)
+ ASM_CLAC
orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
CFI_REMEMBER_STATE
@@ -368,6 +370,7 @@ cstar_tracesys:
END(ia32_cstar_target)
ia32_badarg:
+ ASM_CLAC
movq $-EFAULT,%rax
jmp ia32_sysret
CFI_ENDPROC
@@ -449,24 +452,26 @@ ia32_badsys:
CFI_ENDPROC
- .macro PTREGSCALL label, func, arg
+ .macro PTREGSCALL label, func
ALIGN
GLOBAL(\label)
leaq \func(%rip),%rax
- leaq -ARGOFFSET+8(%rsp),\arg /* 8 for return address */
jmp ia32_ptregs_common
.endm
CFI_STARTPROC32
- PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn, %rdi
- PTREGSCALL stub32_sigreturn, sys32_sigreturn, %rdi
- PTREGSCALL stub32_sigaltstack, sys32_sigaltstack, %rdx
- PTREGSCALL stub32_execve, sys32_execve, %rcx
- PTREGSCALL stub32_fork, sys_fork, %rdi
- PTREGSCALL stub32_clone, sys32_clone, %rdx
- PTREGSCALL stub32_vfork, sys_vfork, %rdi
- PTREGSCALL stub32_iopl, sys_iopl, %rsi
+ PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn
+ PTREGSCALL stub32_sigreturn, sys32_sigreturn
+ PTREGSCALL stub32_execve, compat_sys_execve
+ PTREGSCALL stub32_fork, sys_fork
+ PTREGSCALL stub32_vfork, sys_vfork
+
+ ALIGN
+GLOBAL(stub32_clone)
+ leaq sys_clone(%rip),%rax
+ mov %r8, %rcx
+ jmp ia32_ptregs_common
ALIGN
ia32_ptregs_common:
diff --git a/arch/x86/ia32/ipc32.c b/arch/x86/ia32/ipc32.c
deleted file mode 100644
index 29cdcd02ead..00000000000
--- a/arch/x86/ia32/ipc32.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/list.h>
-#include <linux/syscalls.h>
-#include <linux/time.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/ipc.h>
-#include <linux/compat.h>
-#include <asm/sys_ia32.h>
-
-asmlinkage long sys32_ipc(u32 call, int first, int second, int third,
- compat_uptr_t ptr, u32 fifth)
-{
- int version;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- switch (call) {
- case SEMOP:
- /* struct sembuf is the same on 32 and 64bit :)) */
- return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
- case SEMTIMEDOP:
- return compat_sys_semtimedop(first, compat_ptr(ptr), second,
- compat_ptr(fifth));
- 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));
- 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));
- }
- return -ENOSYS;
-}
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index f6f5c53dc90..8e0ceecdc95 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -71,8 +71,8 @@ static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
{
typeof(ubuf->st_uid) uid = 0;
typeof(ubuf->st_gid) gid = 0;
- SET_UID(uid, stat->uid);
- SET_GID(gid, stat->gid);
+ SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
+ SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
__put_user(huge_encode_dev(stat->dev), &ubuf->st_dev) ||
__put_user(stat->ino, &ubuf->__st_ino) ||
@@ -166,239 +166,12 @@ asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg)
a.offset>>PAGE_SHIFT);
}
-asmlinkage long sys32_mprotect(unsigned long start, size_t len,
- unsigned long prot)
-{
- return sys_mprotect(start, len, prot);
-}
-
-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;
- int ret;
- compat_sigset_t set32;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(compat_sigset_t))
- return -EINVAL;
-
- if (act) {
- compat_uptr_t handler, restorer;
-
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
- __get_user(restorer, &act->sa_restorer) ||
- __copy_from_user(&set32, &act->sa_mask,
- sizeof(compat_sigset_t)))
- return -EFAULT;
- new_ka.sa.sa_handler = compat_ptr(handler);
- new_ka.sa.sa_restorer = compat_ptr(restorer);
-
- /*
- * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
- * than _NSIG_WORDS << 1
- */
- switch (_NSIG_WORDS) {
- case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6]
- | (((long)set32.sig[7]) << 32);
- case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4]
- | (((long)set32.sig[5]) << 32);
- case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2]
- | (((long)set32.sig[3]) << 32);
- case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0]
- | (((long)set32.sig[1]) << 32);
- }
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- /*
- * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
- * than _NSIG_WORDS << 1
- */
- switch (_NSIG_WORDS) {
- case 4:
- set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32);
- set32.sig[6] = old_ka.sa.sa_mask.sig[3];
- case 3:
- set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32);
- set32.sig[4] = old_ka.sa.sa_mask.sig[2];
- case 2:
- set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32);
- set32.sig[2] = old_ka.sa.sa_mask.sig[1];
- case 1:
- set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32);
- set32.sig[0] = old_ka.sa.sa_mask.sig[0];
- }
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_handler),
- &oact->sa_handler) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
- &oact->sa_restorer) ||
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
- __copy_to_user(&oact->sa_mask, &set32,
- sizeof(compat_sigset_t)))
- return -EFAULT;
- }
-
- 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;
- int ret;
-
- if (act) {
- compat_old_sigset_t mask;
- compat_uptr_t handler, restorer;
-
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
- __get_user(restorer, &act->sa_restorer) ||
- __get_user(mask, &act->sa_mask))
- return -EFAULT;
-
- new_ka.sa.sa_handler = compat_ptr(handler);
- new_ka.sa.sa_restorer = compat_ptr(restorer);
-
- siginitset(&new_ka.sa.sa_mask, mask);
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_handler),
- &oact->sa_handler) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
- &oact->sa_restorer) ||
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
- return -EFAULT;
- }
-
- return ret;
-}
-
-asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
- compat_sigset_t __user *oset,
- unsigned int sigsetsize)
-{
- sigset_t s;
- compat_sigset_t s32;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- if (set) {
- if (copy_from_user(&s32, set, sizeof(compat_sigset_t)))
- return -EFAULT;
- switch (_NSIG_WORDS) {
- case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
- case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
- case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
- case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
- }
- }
- set_fs(KERNEL_DS);
- ret = sys_rt_sigprocmask(how,
- set ? (sigset_t __user *)&s : NULL,
- oset ? (sigset_t __user *)&s : NULL,
- sigsetsize);
- set_fs(old_fs);
- if (ret)
- return ret;
- if (oset) {
- switch (_NSIG_WORDS) {
- case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
- case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
- case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
- case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
- }
- if (copy_to_user(oset, &s32, sizeof(compat_sigset_t)))
- return -EFAULT;
- }
- return 0;
-}
-
-asmlinkage long sys32_alarm(unsigned int seconds)
-{
- return alarm_setitimer(seconds);
-}
-
-asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr,
+asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr,
int options)
{
return compat_sys_wait4(pid, stat_addr, options, NULL);
}
-/* 32-bit timeval and related flotsam. */
-
-asmlinkage long sys32_sysfs(int option, u32 arg1, u32 arg2)
-{
- return sys_sysfs(option, arg1, arg2);
-}
-
-asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
- struct compat_timespec __user *interval)
-{
- struct timespec t;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- 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_rt_sigpending(compat_sigset_t __user *set,
- compat_size_t sigsetsize)
-{
- sigset_t s;
- compat_sigset_t s32;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- set_fs(KERNEL_DS);
- ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize);
- set_fs(old_fs);
- if (!ret) {
- switch (_NSIG_WORDS) {
- case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
- case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
- case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
- case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
- }
- if (copy_to_user(set, &s32, sizeof(compat_sigset_t)))
- return -EFAULT;
- }
- return ret;
-}
-
-asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
- compat_siginfo_t __user *uinfo)
-{
- siginfo_t info;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- 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;
-}
-
/* warning: next two assume little endian */
asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
u32 poslo, u32 poshi)
@@ -415,79 +188,10 @@ asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf,
}
-asmlinkage long sys32_personality(unsigned long personality)
-{
- int ret;
-
- if (personality(current->personality) == PER_LINUX32 &&
- personality == PER_LINUX)
- personality = PER_LINUX32;
- ret = sys_personality(personality);
- if (ret == PER_LINUX32)
- ret = PER_LINUX;
- return ret;
-}
-
-asmlinkage long sys32_sendfile(int out_fd, int in_fd,
- compat_off_t __user *offset, s32 count)
-{
- mm_segment_t old_fs = get_fs();
- int 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_execve(const char __user *name, compat_uptr_t __user *argv,
- compat_uptr_t __user *envp, struct pt_regs *regs)
-{
- long error;
- char *filename;
-
- filename = getname(name);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- return error;
- error = compat_do_execve(filename, argv, envp, regs);
- putname(filename);
- return error;
-}
-
-asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp,
- struct pt_regs *regs)
-{
- void __user *parent_tid = (void __user *)regs->dx;
- void __user *child_tid = (void __user *)regs->di;
-
- if (!newsp)
- newsp = regs->sp;
- return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
-}
-
/*
* Some system calls that need sign extended arguments. This could be
* done by a generic wrapper.
*/
-long sys32_lseek(unsigned int fd, int offset, unsigned int whence)
-{
- return sys_lseek(fd, offset, whence);
-}
-
-long sys32_kill(int pid, int sig)
-{
- return sys_kill(pid, sig);
-}
-
long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
__u32 len_low, __u32 len_high, int advice)
{
@@ -511,12 +215,6 @@ long sys32_vm86_warning(void)
return -ENOSYS;
}
-long sys32_lookup_dcookie(u32 addr_low, u32 addr_high,
- char __user *buf, size_t len)
-{
- return sys_lookup_dcookie(((u64)addr_high << 32) | addr_low, buf, len);
-}
-
asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
size_t count)
{
@@ -545,12 +243,3 @@ asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_lo,
return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
((u64)len_hi << 32) | len_lo);
}
-
-asmlinkage long sys32_fanotify_mark(int fanotify_fd, unsigned int flags,
- u32 mask_lo, u32 mask_hi,
- int fd, const char __user *pathname)
-{
- return sys_fanotify_mark(fanotify_fd, flags,
- ((u64)mask_hi << 32) | mask_lo,
- fd, pathname);
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 00:17:05 +0000