diff options
Diffstat (limited to 'arch/um/sys-x86_64/ptrace.c')
| -rw-r--r-- | arch/um/sys-x86_64/ptrace.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/arch/um/sys-x86_64/ptrace.c b/arch/um/sys-x86_64/ptrace.c deleted file mode 100644 index 74eee5c7c6d..00000000000 --- a/arch/um/sys-x86_64/ptrace.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Copyright 2003 PathScale, Inc. - * - * Licensed under the GPL - */ - -#define __FRAME_OFFSETS -#include <asm/ptrace.h> -#include <linux/sched.h> -#include <linux/errno.h> -#include <asm/uaccess.h> -#include <asm/elf.h> - -/* XXX x86_64 */ -unsigned long not_ss; -unsigned long not_ds; -unsigned long not_es; - -#define SC_SS(r) (not_ss) -#define SC_DS(r) (not_ds) -#define SC_ES(r) (not_es) - -/* determines which flags the user has access to. */ -/* 1 = access 0 = no access */ -#define FLAG_MASK 0x44dd5UL - -int putreg(struct task_struct *child, int regno, unsigned long value) -{ - unsigned long tmp; - -#ifdef TIF_IA32 - /* Some code in the 64bit emulation may not be 64bit clean. - Don't take any chances. */ - if (test_tsk_thread_flag(child, TIF_IA32)) - value &= 0xffffffff; -#endif - switch (regno){ - case FS: - case GS: - case DS: - case ES: - case SS: - case CS: - if (value && (value & 3) != 3) - return -EIO; - value &= 0xffff; - break; - - case FS_BASE: - case GS_BASE: - if (!((value >> 48) == 0 || (value >> 48) == 0xffff)) - return -EIO; - break; - - case EFLAGS: - value &= FLAG_MASK; - tmp = PT_REGS_EFLAGS(&child->thread.regs) & ~FLAG_MASK; - value |= tmp; - break; - } - - PT_REGS_SET(&child->thread.regs, regno, value); - return 0; -} - -int poke_user(struct task_struct *child, long addr, long data) -{ - if ((addr & 3) || addr < 0) - return -EIO; - - if (addr < MAX_REG_OFFSET) - return putreg(child, addr, data); - -#if 0 /* Need x86_64 debugregs handling */ - else if((addr >= offsetof(struct user, u_debugreg[0])) && - (addr <= offsetof(struct user, u_debugreg[7]))){ - addr -= offsetof(struct user, u_debugreg[0]); - addr = addr >> 2; - if((addr == 4) || (addr == 5)) return -EIO; - child->thread.arch.debugregs[addr] = data; - return 0; - } -#endif - return -EIO; -} - -unsigned long getreg(struct task_struct *child, int regno) -{ - unsigned long retval = ~0UL; - switch (regno) { - case FS: - case GS: - case DS: - case ES: - case SS: - case CS: - retval = 0xffff; - /* fall through */ - default: - retval &= PT_REG(&child->thread.regs, regno); -#ifdef TIF_IA32 - if (test_tsk_thread_flag(child, TIF_IA32)) - retval &= 0xffffffff; -#endif - } - return retval; -} - -int peek_user(struct task_struct *child, long addr, long data) -{ - /* read the word at location addr in the USER area. */ - unsigned long tmp; - - if ((addr & 3) || addr < 0) - return -EIO; - - tmp = 0; /* Default return condition */ - if(addr < MAX_REG_OFFSET){ - tmp = getreg(child, addr); - } -#if 0 /* Need x86_64 debugregs handling */ - else if((addr >= offsetof(struct user, u_debugreg[0])) && - (addr <= offsetof(struct user, u_debugreg[7]))){ - addr -= offsetof(struct user, u_debugreg[0]); - addr = addr >> 2; - tmp = child->thread.arch.debugregs[addr]; - } -#endif - return put_user(tmp, (unsigned long *) data); -} - -void arch_switch(void) -{ -/* XXX - printk("arch_switch\n"); -*/ -} - -int is_syscall(unsigned long addr) -{ - panic("is_syscall"); -} - -int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu ) -{ - panic("dump_fpu"); - return(1); -} - -int get_fpregs(unsigned long buf, struct task_struct *child) -{ - panic("get_fpregs"); - return(0); -} - -int set_fpregs(unsigned long buf, struct task_struct *child) -{ - panic("set_fpregs"); - return(0); -} - -int get_fpxregs(unsigned long buf, struct task_struct *tsk) -{ - panic("get_fpxregs"); - return(0); -} - -int set_fpxregs(unsigned long buf, struct task_struct *tsk) -{ - panic("set_fxpregs"); - return(0); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ |