Searched hist:"380 fdd7585a4c2f41b48925eba85c0654b7b858b" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/arch/x86/kernel/ |
| H A D | step.c | diff 380fdd7585a4c2f41b48925eba85c0654b7b858b Wed Jul 09 04:39:29 CDT 2008 Roland McGrath <roland@redhat.com> 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>
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| H A D | ptrace.c | diff 380fdd7585a4c2f41b48925eba85c0654b7b858b Wed Jul 09 04:39:29 CDT 2008 Roland McGrath <roland@redhat.com> 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>
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