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| author | Roland McGrath <roland@redhat.com> | 2008-07-09 11:39:29 +0200 |
|---|---|---|
| committer | Roland McGrath <roland@redhat.com> | 2008-07-16 21:15:17 +0200 |
| commit | 380fdd7585a4c2f41b48925eba85c0654b7b858b (patch) | |
| tree | 3e405cd6cb0be449671ef28c6275fd7ad6b99295 /arch/x86/kernel/quirks.c | |
| parent | x86 ptrace: unify syscall tracing (diff) | |
| download | linux-380fdd7585a4c2f41b48925eba85c0654b7b858b.tar.xz linux-380fdd7585a4c2f41b48925eba85c0654b7b858b.zip | |
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 'arch/x86/kernel/quirks.c')
0 files changed, 0 insertions, 0 deletions