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-rw-r--r--include/asm-i386/unwind.h12
-rw-r--r--include/asm-x86_64/unwind.h8
2 files changed, 6 insertions, 14 deletions
diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h
index 601fc67bd775..aa2c931e30db 100644
--- a/include/asm-i386/unwind.h
+++ b/include/asm-i386/unwind.h
@@ -79,17 +79,13 @@ extern asmlinkage int arch_unwind_init_running(struct unwind_frame_info *,
79 void *arg), 79 void *arg),
80 void *arg); 80 void *arg);
81 81
82static inline int arch_unw_user_mode(const struct unwind_frame_info *info) 82static inline int arch_unw_user_mode(/*const*/ struct unwind_frame_info *info)
83{ 83{
84#if 0 /* This can only work when selector register and EFLAGS saves/restores 84 return user_mode_vm(&info->regs)
85 are properly annotated (and tracked in UNW_REGISTER_INFO). */ 85 || info->regs.eip < PAGE_OFFSET
86 return user_mode_vm(&info->regs);
87#else
88 return info->regs.eip < PAGE_OFFSET
89 || (info->regs.eip >= __fix_to_virt(FIX_VDSO) 86 || (info->regs.eip >= __fix_to_virt(FIX_VDSO)
90 && info->regs.eip < __fix_to_virt(FIX_VDSO) + PAGE_SIZE) 87 && info->regs.eip < __fix_to_virt(FIX_VDSO) + PAGE_SIZE)
91 || info->regs.esp < PAGE_OFFSET; 88 || info->regs.esp < PAGE_OFFSET;
92#endif
93} 89}
94 90
95#else 91#else
diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h
index 2e7ff10fd775..2f6349e48717 100644
--- a/include/asm-x86_64/unwind.h
+++ b/include/asm-x86_64/unwind.h
@@ -87,14 +87,10 @@ extern int arch_unwind_init_running(struct unwind_frame_info *,
87 87
88static inline int arch_unw_user_mode(const struct unwind_frame_info *info) 88static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
89{ 89{
90#if 0 /* This can only work when selector register saves/restores 90 return user_mode(&info->regs)
91 are properly annotated (and tracked in UNW_REGISTER_INFO). */ 91 || (long)info->regs.rip >= 0
92 return user_mode(&info->regs);
93#else
94 return (long)info->regs.rip >= 0
95 || (info->regs.rip >= VSYSCALL_START && info->regs.rip < VSYSCALL_END) 92 || (info->regs.rip >= VSYSCALL_START && info->regs.rip < VSYSCALL_END)
96 || (long)info->regs.rsp >= 0; 93 || (long)info->regs.rsp >= 0;
97#endif
98} 94}
99 95
100#else 96#else