diff options
Diffstat (limited to 'gdb/lin-lwp.c')
| -rw-r--r-- | gdb/lin-lwp.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/gdb/lin-lwp.c b/gdb/lin-lwp.c index 923d43b..280936e 100644 --- a/gdb/lin-lwp.c +++ b/gdb/lin-lwp.c @@ -327,7 +327,10 @@ lin_lwp_attach_lwp (ptid_t ptid, int verbose) lp = add_lwp (ptid); if (is_cloned (ptid)) - lp->signalled = 1; + { + lp->signalled = 1; + stop_wait_callback (lp, NULL); + } } static void @@ -370,6 +373,7 @@ detach_callback (struct lwp_info *lp, void *data) strerror (errno)); lp->stopped = 0; + lp->signalled = 0; lp->status = 0; stop_wait_callback (lp, NULL); @@ -481,7 +485,7 @@ lin_lwp_resume (ptid_t ptid, int step, enum target_signal signo) resume_all = (PIDGET (ptid) == -1) || !step; /* If PID is -1, it's the current inferior that should be - handled special. */ + handled specially. */ if (PIDGET (ptid) == -1) ptid = inferior_ptid; @@ -544,6 +548,7 @@ stop_wait_callback (struct lwp_info *lp, void *data) pid_t pid; int status; + get_another_event: gdb_assert (lp->status == 0); pid = waitpid (GET_LWP (lp->ptid), &status, @@ -609,6 +614,10 @@ stop_wait_callback (struct lwp_info *lp, void *data) write_pc_pid (read_pc_pid (pid_to_ptid (pid)) - DECR_PC_AFTER_BREAK, pid_to_ptid (pid)); + + /* Now resume this LWP and get the SIGSTOP event. */ + ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0); + goto get_another_event; } else if (WSTOPSIG (status) == SIGINT && signal_pass_state (SIGINT) == 0) @@ -617,7 +626,10 @@ stop_wait_callback (struct lwp_info *lp, void *data) (in the case where ^C/BREAK is typed at the tty/console), just ignore all SIGINT events from all lwp's except for the one that was caught by lin_lwp_wait. */ - ; /* Don't save. Signal will disappear into oblivion. */ + + /* Now resume this LWP and get the SIGSTP event. */ + ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0); + goto get_another_event; } else { @@ -868,8 +880,14 @@ lin_lwp_wait (ptid_t ptid, struct target_waitstatus *ourstatus) && signal_print_state (signo) == 0 && signal_pass_state (signo) == 1) { - child_resume (pid_to_ptid (GET_LWP (lp->ptid)), lp->step, signo); + /* First mark this LWP as "not stopped", so that + resume_callback will not resume it. */ lp->stopped = 0; + /* Resume all threads except this one + (mainly to get the newly attached ones). */ + iterate_over_lwps (resume_callback, NULL); + /* Now resume this thread, forwarding the signal to it. */ + child_resume (pid_to_ptid (GET_LWP (lp->ptid)), lp->step, signo); status = 0; goto retry; } |