diff options
Diffstat (limited to 'include/asm-i386/unwind.h')
| -rw-r--r-- | include/asm-i386/unwind.h | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h index 5031d693b89d..43c70c3de2f9 100644 --- a/include/asm-i386/unwind.h +++ b/include/asm-i386/unwind.h @@ -1,98 +1,6 @@ #ifndef _ASM_I386_UNWIND_H #define _ASM_I386_UNWIND_H -/* - * Copyright (C) 2002-2006 Novell, Inc. - * Jan Beulich <jbeulich@novell.com> - * This code is released under version 2 of the GNU GPL. - */ - -#ifdef CONFIG_STACK_UNWIND - -#include <linux/sched.h> -#include <asm/fixmap.h> -#include <asm/ptrace.h> -#include <asm/uaccess.h> - -struct unwind_frame_info -{ - struct pt_regs regs; - struct task_struct *task; - unsigned call_frame:1; -}; - -#define UNW_PC(frame) (frame)->regs.eip -#define UNW_SP(frame) (frame)->regs.esp -#ifdef CONFIG_FRAME_POINTER -#define UNW_FP(frame) (frame)->regs.ebp -#define FRAME_RETADDR_OFFSET 4 -#define FRAME_LINK_OFFSET 0 -#define STACK_BOTTOM(tsk) STACK_LIMIT((tsk)->thread.esp0) -#define STACK_TOP(tsk) ((tsk)->thread.esp0) -#else -#define UNW_FP(frame) ((void)(frame), 0) -#endif -#define STACK_LIMIT(ptr) (((ptr) - 1) & ~(THREAD_SIZE - 1)) - -#define UNW_REGISTER_INFO \ - PTREGS_INFO(eax), \ - PTREGS_INFO(ecx), \ - PTREGS_INFO(edx), \ - PTREGS_INFO(ebx), \ - PTREGS_INFO(esp), \ - PTREGS_INFO(ebp), \ - PTREGS_INFO(esi), \ - PTREGS_INFO(edi), \ - PTREGS_INFO(eip) - -#define UNW_DEFAULT_RA(raItem, dataAlign) \ - ((raItem).where == Memory && \ - !((raItem).value * (dataAlign) + 4)) - -static inline void arch_unw_init_frame_info(struct unwind_frame_info *info, - /*const*/ struct pt_regs *regs) -{ - if (user_mode_vm(regs)) - info->regs = *regs; - else { - memcpy(&info->regs, regs, offsetof(struct pt_regs, esp)); - info->regs.esp = (unsigned long)®s->esp; - info->regs.xss = __KERNEL_DS; - } -} - -static inline void arch_unw_init_blocked(struct unwind_frame_info *info) -{ - memset(&info->regs, 0, sizeof(info->regs)); - info->regs.eip = info->task->thread.eip; - info->regs.xcs = __KERNEL_CS; - __get_user(info->regs.ebp, (long *)info->task->thread.esp); - info->regs.esp = info->task->thread.esp; - info->regs.xss = __KERNEL_DS; - info->regs.xds = __USER_DS; - info->regs.xes = __USER_DS; -} - -extern asmlinkage int arch_unwind_init_running(struct unwind_frame_info *, - asmlinkage int (*callback)(struct unwind_frame_info *, - void *arg), - void *arg); - -static inline int arch_unw_user_mode(const struct unwind_frame_info *info) -{ -#if 0 /* This can only work when selector register and EFLAGS saves/restores - are properly annotated (and tracked in UNW_REGISTER_INFO). */ - return user_mode_vm(&info->regs); -#else - return info->regs.eip < PAGE_OFFSET - || (info->regs.eip >= __fix_to_virt(FIX_VDSO) - && info->regs.eip < __fix_to_virt(FIX_VDSO) + PAGE_SIZE) - || info->regs.esp < PAGE_OFFSET; -#endif -} - -#else - #define UNW_PC(frame) ((void)(frame), 0) #define UNW_SP(frame) ((void)(frame), 0) #define UNW_FP(frame) ((void)(frame), 0) @@ -102,6 +10,4 @@ static inline int arch_unw_user_mode(const void *info) return 0; } -#endif - #endif /* _ASM_I386_UNWIND_H */ |