A debugger which requested PT_FOLLOW_FORK should get the notification
about new child not only when doing PT_TO_SCX, but also for PT_CONTINUE. If TDB_FORK flag is set, always issue a stop, the same as is done for TDB_EXEC. Reported by: Dmitry Mikulin <dmitrym juniper net> MFC after: 1 week
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=230785
@ -212,7 +212,8 @@ syscallret(struct thread *td, int error, struct syscall_args *sa __unused)
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* executes. If debugger requested tracing of syscall
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* returns, do it now too.
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*/
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if (traced && ((td->td_dbgflags & TDB_EXEC) != 0 ||
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if (traced &&
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((td->td_dbgflags & (TDB_FORK | TDB_EXEC)) != 0 ||
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(p->p_stops & S_PT_SCX) != 0))
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ptracestop(td, SIGTRAP);
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td->td_dbgflags &= ~(TDB_SCX | TDB_EXEC | TDB_FORK);
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