1 files changed, 0 insertions, 96 deletions

diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h
index 2f6349e48717..02710f6a4560 100644
--- a/include/asm-x86_64/unwind.h
+++ b/include/asm-x86_64/unwind.h
@@ -1,100 +1,6 @@
 #ifndef _ASM_X86_64_UNWIND_H
 #define _ASM_X86_64_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/ptrace.h>
-#include <asm/uaccess.h>
-#include <asm/vsyscall.h>
-
-struct unwind_frame_info
-{
-        struct pt_regs regs;
-        struct task_struct *task;
-        unsigned call_frame:1;
-};
-
-#define UNW_PC(frame)        (frame)->regs.rip
-#define UNW_SP(frame)        (frame)->regs.rsp
-#ifdef CONFIG_FRAME_POINTER
-#define UNW_FP(frame)        (frame)->regs.rbp
-#define FRAME_RETADDR_OFFSET 8
-#define FRAME_LINK_OFFSET    0
-#define STACK_BOTTOM(tsk)    (((tsk)->thread.rsp0 - 1) & ~(THREAD_SIZE - 1))
-#define STACK_TOP(tsk)       ((tsk)->thread.rsp0)
-#endif
-/* Might need to account for the special exception and interrupt handling
-   stacks here, since normally
-        EXCEPTION_STACK_ORDER < THREAD_ORDER < IRQSTACK_ORDER,
-   but the construct is needed only for getting across the stack switch to
-   the interrupt stack - thus considering the IRQ stack itself is unnecessary,
-   and the overhead of comparing against all exception handling stacks seems
-   not desirable. */
-#define STACK_LIMIT(ptr)     (((ptr) - 1) & ~(THREAD_SIZE - 1))
-
-#define UNW_REGISTER_INFO \
-        PTREGS_INFO(rax), \
-        PTREGS_INFO(rdx), \
-        PTREGS_INFO(rcx), \
-        PTREGS_INFO(rbx), \
-        PTREGS_INFO(rsi), \
-        PTREGS_INFO(rdi), \
-        PTREGS_INFO(rbp), \
-        PTREGS_INFO(rsp), \
-        PTREGS_INFO(r8), \
-        PTREGS_INFO(r9), \
-        PTREGS_INFO(r10), \
-        PTREGS_INFO(r11), \
-        PTREGS_INFO(r12), \
-        PTREGS_INFO(r13), \
-        PTREGS_INFO(r14), \
-        PTREGS_INFO(r15), \
-        PTREGS_INFO(rip)
-
-#define UNW_DEFAULT_RA(raItem, dataAlign) \
-        ((raItem).where == Memory && \
-         !((raItem).value * (dataAlign) + 8))
-
-static inline void arch_unw_init_frame_info(struct unwind_frame_info *info,
-                                            /*const*/ struct pt_regs *regs)
-{
-        info->regs = *regs;
-}
-
-static inline void arch_unw_init_blocked(struct unwind_frame_info *info)
-{
-        extern const char thread_return[];
-
-        memset(&info->regs, 0, sizeof(info->regs));
-        info->regs.rip = (unsigned long)thread_return;
-        info->regs.cs = __KERNEL_CS;
-        __get_user(info->regs.rbp, (unsigned long *)info->task->thread.rsp);
-        info->regs.rsp = info->task->thread.rsp;
-        info->regs.ss = __KERNEL_DS;
-}
-
-extern int arch_unwind_init_running(struct unwind_frame_info *,
-                                    int (*callback)(struct unwind_frame_info *,
-                                                    void *arg),
-                                    void *arg);
-
-static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
-{
-        return user_mode(&info->regs)
-               || (long)info->regs.rip >= 0
-               || (info->regs.rip >= VSYSCALL_START && info->regs.rip < VSYSCALL_END)
-               || (long)info->regs.rsp >= 0;
-}
-
-#else
-
 #define UNW_PC(frame) ((void)(frame), 0UL)
 #define UNW_SP(frame) ((void)(frame), 0UL)
 
@@ -103,6 +9,4 @@ static inline int arch_unw_user_mode(const void *info)
         return 0;
 }
 
-#endif
-
 #endif /* _ASM_X86_64_UNWIND_H */