| commit | 6718d0d6da2749d3bff522e6057e97e6aa85e4d1 | [log] [tgz] |
|---|---|---|
| author | Roland McGrath <roland@redhat.com> | Wed Jul 09 01:07:02 2008 -0700 |
| committer | Roland McGrath <roland@redhat.com> | Wed Jul 16 12:15:16 2008 -0700 |
| tree | a069a92fd5011eb32bc461f3a23f0fc32d72f8ec | |
| parent | a3cf859321486f69506326146ab3e2fd15c05c3f [diff] |
x86 ptrace: block-step fix The enable_single_step() logic bails out early if TF is already set. That skips some of the bookkeeping that keeps things straight. This makes PTRACE_SINGLEBLOCK break the behavior of a user task that was already setting TF itself in user mode. Fix the bookkeeping to notice the old TF setting as it should. Test case at: http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tests/tests/step-jump-cont-strict.c?cvsroot=systemtap Signed-off-by: Roland McGrath <roland@redhat.com>