diff options
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/gdbserver/lynx-low.c | 38 |
2 files changed, 43 insertions, 1 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index 460d9a1..469a2df 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,9 @@ +2013-10-01 Joel Brobecker <brobecker@adacore.com> + + * lynx-low.c (lynx_add_threads_after_attach): New function. + (lynx_attach): Remove call to add_thread. Add call to + lynx_add_threads_after_attach instead. + 2013-09-28 Mike Frysinger <vapier@gentoo.org> * configure.ac (AC_CHECK_HEADERS): Add sys/syscall.h diff --git a/gdb/gdbserver/lynx-low.c b/gdb/gdbserver/lynx-low.c index 3c75b62..3c061b8 100644 --- a/gdb/gdbserver/lynx-low.c +++ b/gdb/gdbserver/lynx-low.c @@ -262,6 +262,42 @@ lynx_create_inferior (char *program, char **allargs) return pid; } +/* Assuming we've just attached to a running inferior whose pid is PID, + add all threads running in that process. */ + +static void +lynx_add_threads_after_attach (int pid) +{ + /* Ugh! There appears to be no way to get the list of threads + in the program we just attached to. So get the list by calling + the "ps" command. This is only needed now, as we will then + keep the thread list up to date thanks to thread creation and + exit notifications. */ + FILE *f; + char buf[256]; + int thread_pid, thread_tid; + + f = popen ("ps atx", "r"); + if (f == NULL) + perror_with_name ("Cannot get thread list"); + + while (fgets (buf, sizeof (buf), f) != NULL) + if ((sscanf (buf, "%d %d", &thread_pid, &thread_tid) == 2 + && thread_pid == pid)) + { + ptid_t thread_ptid = lynx_ptid_build (pid, thread_tid); + + if (!find_thread_ptid (thread_ptid)) + { + lynx_debug ("New thread: (pid = %d, tid = %d)", + pid, thread_tid); + add_thread (thread_ptid, NULL); + } + } + + pclose (f); +} + /* Implement the attach target_ops method. */ static int @@ -274,7 +310,7 @@ lynx_attach (unsigned long pid) strerror (errno), errno); lynx_add_process (pid, 1); - add_thread (ptid, NULL); + lynx_add_threads_after_attach (pid); return 0; } |