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Fix two ``attach'' related bugs involving threads.

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This commit is contained in:
Kevin Buettner
2001-11-21 21:56:47 +00:00
parent d7458677f4
commit da9c7185df
2 changed files with 25 additions and 0 deletions
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18
gdb/lin-lwp.c
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@@ -352,6 +352,14 @@ lin_lwp_attach_lwp (ptid_t ptid, int verbose)
gdb_assert (is_lwp (ptid));
/* Make sure SIGCHLD is blocked. We don't want SIGCHLD events
to interrupt either the ptrace() or waitpid() calls below. */
if (! sigismember (&blocked_mask, SIGCHLD))
{
sigaddset (&blocked_mask, SIGCHLD);
sigprocmask (SIG_BLOCK, &blocked_mask, NULL);
}
if (verbose)
printf_filtered ("[New %s]\n", target_pid_to_str (ptid));
@@ -383,6 +391,16 @@ lin_lwp_attach_lwp (ptid_t ptid, int verbose)
lp->stopped = 1;
}
else
{
/* We assume that the LWP representing the original process
is already stopped. Mark it as stopped in the data structure
that the lin-lwp layer uses to keep track of threads. Note
that this won't have already been done since the main thread
will have, we assume, been stopped by an attach from a
different layer. */
lp->stopped = 1;
}
}
static void