2009-10-15 Paul Pluzhnikov <ppluzhnikov@google.com>

* linux-nat.c (linux_nat_post_attach_wait): Adjust assert.
	(lin_lwp_attach_lwp, linux_nat_attach): Handle disappearing LWP.
This commit is contained in:
Paul Pluzhnikov 2009-10-15 18:06:15 +00:00
parent 191e181311
commit dacc9cb281
2 changed files with 51 additions and 1 deletions

View File

@ -1,3 +1,8 @@
2009-10-15 Paul Pluzhnikov <ppluzhnikov@google.com>
* linux-nat.c (linux_nat_post_attach_wait): Adjust assert.
(lin_lwp_attach_lwp, linux_nat_attach): Handle disappearing LWP.
2009-10-15 Michael Snyder <msnyder@vmware.com>
* record.c (record_insn_max_num): Make unsigned.

View File

@ -1338,7 +1338,16 @@ linux_nat_post_attach_wait (ptid_t ptid, int first, int *cloned,
*cloned = 1;
}
gdb_assert (pid == new_pid && WIFSTOPPED (status));
gdb_assert (pid == new_pid);
if (!WIFSTOPPED (status))
{
/* The pid we tried to attach has apparently just exited. */
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "LNPAW: Failed to stop %d: %s",
pid, status_to_str (status));
return status;
}
if (WSTOPSIG (status) != SIGSTOP)
{
@ -1396,6 +1405,9 @@ lin_lwp_attach_lwp (ptid_t ptid)
target_pid_to_str (ptid));
status = linux_nat_post_attach_wait (ptid, 0, &cloned, &signalled);
if (!WIFSTOPPED (status))
return -1;
lp = add_lwp (ptid);
lp->stopped = 1;
lp->cloned = cloned;
@ -1495,6 +1507,39 @@ linux_nat_attach (struct target_ops *ops, char *args, int from_tty)
status = linux_nat_post_attach_wait (lp->ptid, 1, &lp->cloned,
&lp->signalled);
if (!WIFSTOPPED (status))
{
if (WIFEXITED (status))
{
int exit_code = WEXITSTATUS (status);
target_terminal_ours ();
target_mourn_inferior ();
if (exit_code == 0)
error (_("Unable to attach: program exited normally."));
else
error (_("Unable to attach: program exited with code %d."),
exit_code);
}
else if (WIFSIGNALED (status))
{
enum target_signal signo;
target_terminal_ours ();
target_mourn_inferior ();
signo = target_signal_from_host (WTERMSIG (status));
error (_("Unable to attach: program terminated with signal "
"%s, %s."),
target_signal_to_name (signo),
target_signal_to_string (signo));
}
internal_error (__FILE__, __LINE__,
_("unexpected status %d for PID %ld"),
status, (long) GET_LWP (ptid));
}
lp->stopped = 1;
/* Save the wait status to report later. */