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| author | Martin Pieuchot <mpi@cvs.openbsd.org> | 2021-03-23 10:30:41 +0000 |
|---|---|---|
| committer | Martin Pieuchot <mpi@cvs.openbsd.org> | 2021-03-23 10:30:41 +0000 |
| commit | 4c1d248d16915e972e7b863d8bc72c2d20d24fa8 (patch) | |
| tree | cd19695ec0c337cca11c09d36f12bb6d96e2bf61 /usr.bin/lex | |
| parent | a04c027eec71104e37c2e945b7e3929766b72bf4 (diff) | |
Make a child execute fork_return() only if PTRACE_FORK has been specified.
fork_return() does an additional check to send a SIGTRAP (for a debugger)
but this signal might overwrite the SIGSTOP generated by the parent doing
a PT_ATTACH before the child has a change to execute any instruction.
Prevent a race visible only on SP system with regress/sys/kern/ptrace2.
ok kettenis@
Diffstat (limited to 'usr.bin/lex')
0 files changed, 0 insertions, 0 deletions