Linux: on attach, attach to lwps listed under /proc/$pid/task/

[deliverable/binutils-gdb.git] / gdb / ChangeLog

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6eb492680a9751e23bd51d671d32e5149b2abe37..4ee17b31e559e1e66122490f3b5712024b8f8260 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,43 @@
+2015-01-09  Pedro Alves  <palves@redhat.com>
+
+       * linux-nat.c (attach_proc_task_lwp_callback): New function.
+       (linux_nat_attach): Use linux_proc_attach_tgid_threads.
+       (wait_lwp, linux_nat_filter_event): If not set yet, set the lwp's
+       ptrace option flags.
+       * linux-nat.h (struct lwp_info) <must_set_ptrace_flags>: New
+       field.
+       * nat/linux-procfs.c: Include <dirent.h>.
+       (linux_proc_get_int): New parameter "warn".  Handle it.
+       (linux_proc_get_tgid): Adjust.
+       (linux_proc_get_tracerpid): Rename to ...
+       (linux_proc_get_tracerpid_nowarn): ... this.
+       (linux_proc_pid_get_state): New function, factored out from
+       (linux_proc_pid_has_state): ... this.  Add new parameter "warn"
+       and handle it.
+       (linux_proc_pid_is_gone): New function.
+       (linux_proc_pid_is_stopped): Adjust.
+       (linux_proc_pid_is_zombie_maybe_warn)
+       (linux_proc_pid_is_zombie_nowarn): New functions.
+       (linux_proc_pid_is_zombie): Use
+       linux_proc_pid_is_zombie_maybe_warn.
+       (linux_proc_attach_tgid_threads): New function.
+       * nat/linux-procfs.h (linux_proc_get_tgid): Update comment.
+       (linux_proc_get_tracerpid): Rename to ...
+       (linux_proc_get_tracerpid_nowarn): ... this, and update comment.
+       (linux_proc_pid_is_gone): New declaration.
+       (linux_proc_pid_is_zombie): Update comment.
+       (linux_proc_pid_is_zombie_nowarn): New declaration.
+       (linux_proc_attach_lwp_func): New typedef.
+       (linux_proc_attach_tgid_threads): New declaration.
+       * nat/linux-ptrace.c (linux_ptrace_attach_fail_reason): Adjust to
+       use nowarn functions.
+       (linux_ptrace_attach_fail_reason_string): Move here from
+       gdbserver/linux-low.c and rename.
+       (ptrace_supports_feature): If the current ptrace options are not
+       known yet, check them now, instead of asserting.
+       * nat/linux-ptrace.h (linux_ptrace_attach_fail_reason_string):
+       Declare.
+
 2015-01-09  Pedro Alves  <palves@redhat.com>
 
        * linux-thread-db.c (thread_db_find_new_threads_silently)