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| author | Roland McGrath <roland@redhat.com> | 2008-07-09 02:39:29 -0700 |
|---|---|---|
| committer | Roland McGrath <roland@redhat.com> | 2008-07-16 12:15:17 -0700 |
| commit | 380fdd7585a4c2f41b48925eba85c0654b7b858b (patch) | |
| tree | 3e405cd6cb0be449671ef28c6275fd7ad6b99295 /include/asm-x86/thread_info.h | |
| parent | d4d67150165df8bf1cc05e532f6efca96f907cab (diff) | |
| download | kernel_samsung_smdk4412-380fdd7585a4c2f41b48925eba85c0654b7b858b.zip kernel_samsung_smdk4412-380fdd7585a4c2f41b48925eba85c0654b7b858b.tar.gz kernel_samsung_smdk4412-380fdd7585a4c2f41b48925eba85c0654b7b858b.tar.bz2 | |
x86 ptrace: user-sets-TF nits
This closes some arcane holes in single-step handling that can arise
only when user programs set TF directly (via popf or sigreturn) and
then use vDSO (syscall/sysenter) system call entry. In those entry
paths, the clear_TF_reenable case hits and we must check TIF_SINGLESTEP
to be sure our bookkeeping stays correct wrt the user's view of TF.
Signed-off-by: Roland McGrath <roland@redhat.com>
Diffstat (limited to 'include/asm-x86/thread_info.h')
| -rw-r--r-- | include/asm-x86/thread_info.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h index b2702a1..0a8f27d 100644 --- a/include/asm-x86/thread_info.h +++ b/include/asm-x86/thread_info.h @@ -118,7 +118,7 @@ struct thread_info { /* work to do in syscall_trace_enter() */ #define _TIF_WORK_SYSCALL_ENTRY \ (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | \ - _TIF_SYSCALL_AUDIT | _TIF_SECCOMP) + _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | _TIF_SINGLESTEP) /* work to do in syscall_trace_leave() */ #define _TIF_WORK_SYSCALL_EXIT \ |