diff options
| author | Jan Beulich <jbeulich@novell.com> | 2006-12-07 02:14:13 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:13 +0100 |
| commit | 359ad0d4015a9ab39243f2ebc4eb07915bd618b2 (patch) | |
| tree | 90f05d8d9ab048029bfe1e451a012b4d5896aafe /include/asm-x86_64/unwind.h | |
| parent | eef5e0d185fc049bda11fa14ba286fbd357da896 (diff) | |
[PATCH] unwinder: more sanity checks in Dwarf2 unwinder
Tighten the requirements on both input to and output from the Dwarf2
unwinder.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include/asm-x86_64/unwind.h')
| -rw-r--r-- | include/asm-x86_64/unwind.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h index 2e7ff10fd77..2f6349e4871 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 *, static inline int arch_unw_user_mode(const struct unwind_frame_info *info) { -#if 0 /* This can only work when selector register saves/restores - are properly annotated (and tracked in UNW_REGISTER_INFO). */ - return user_mode(&info->regs); -#else - return (long)info->regs.rip >= 0 + 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; -#endif } #else |