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1592379 |
Index: gdb-6.8.50.20090226/gdb/linux-nat.c
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===================================================================
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--- gdb-6.8.50.20090226.orig/gdb/linux-nat.c 2009-02-27 00:04:35.000000000 +0100
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+++ gdb-6.8.50.20090226/gdb/linux-nat.c 2009-02-27 07:51:44.000000000 +0100
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@@ -1790,15 +1790,17 @@ resume_set_callback (struct lwp_info *lp
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static void
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linux_nat_resume (struct target_ops *ops,
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- ptid_t ptid, int step, enum target_signal signo)
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+ ptid_t ptid, int step_int, enum target_signal signo)
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{
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struct lwp_info *lp;
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int resume_all;
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+ enum resume_step step = step_int;
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if (debug_linux_nat)
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fprintf_unfiltered (gdb_stdlog,
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"LLR: Preparing to %s %s, %s, inferior_ptid %s\n",
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- step ? "step" : "resume",
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+ (step == RESUME_STEP_NEEDED
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+ ? "needed" : (step ? "step" : "resume")),
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target_pid_to_str (ptid),
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signo ? strsignal (signo) : "0",
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target_pid_to_str (inferior_ptid));
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@@ -2740,6 +2742,9 @@ linux_nat_filter_event (int lwpid, int s
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/* Check if the thread has exited. */
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if ((WIFEXITED (status) || WIFSIGNALED (status)) && num_lwps > 1)
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{
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+ enum resume_step step = lp->step;
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+ pid_t pid = GET_PID (lp->ptid);
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+
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/* If this is the main thread, we must stop all threads and
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verify if they are still alive. This is because in the nptl
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thread model, there is no signal issued for exiting LWPs
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@@ -2763,6 +2768,26 @@ linux_nat_filter_event (int lwpid, int s
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exit_lwp (lp);
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+ if (step == RESUME_STEP_USER)
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+ {
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+ /* Now stop the closest LWP's ... */
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+ lp = find_lwp_pid (pid_to_ptid (pid));
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+ if (!lp)
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+ lp = lwp_list;
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+ gdb_assert (lp != NULL);
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+ errno = 0;
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+ ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0,
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+ (void *) (unsigned long) SIGSTOP);
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+ if (debug_linux_nat)
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+ fprintf_unfiltered (gdb_stdlog,
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+ "PTRACE_CONT %s, 0, 0 (%s)\n",
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+ target_pid_to_str (lp->ptid),
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+ errno ? safe_strerror (errno)
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+ : "OK");
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+ /* Avoid the silent `delayed SIGSTOP' handling. */
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+ lp->signalled = 0;
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+ }
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+
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/* If there is at least one more LWP, then the exit signal was
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not the end of the debugged application and should be
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ignored. */
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