[src/trunk]: src/external/gpl3/gdb/dist/gdb Overwrite waiton_ptid in nbsd-nat...

[kamil <kamil%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/47cf1c6f1d72
branches:  trunk
changeset: 451008:47cf1c6f1d72
user:      kamil <kamil%NetBSD.org@localhost>
date:      Fri May 03 19:03:57 2019 +0000

description:
Overwrite waiton_ptid in nbsd-nat, rather than generic core

This avoids compatibility issues with remote access to !NetBSD platform.

diffstat:

 external/gpl3/gdb/dist/gdb/infrun.c   |   4 ----
 external/gpl3/gdb/dist/gdb/nbsd-nat.c |  11 +++++++++++
 2 files changed, 11 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r 5e82b98aeb9b -r 47cf1c6f1d72 external/gpl3/gdb/dist/gdb/infrun.c
--- a/external/gpl3/gdb/dist/gdb/infrun.c       Fri May 03 16:06:56 2019 +0000
+++ b/external/gpl3/gdb/dist/gdb/infrun.c       Fri May 03 19:03:57 2019 +0000
@@ -3874,11 +3874,7 @@
   struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
   struct cleanup *ts_old_chain;
   int cmd_done = 0;
-#if defined(__NetBSD__)
-  ptid_t waiton_ptid = inferior_ptid;
-#else
   ptid_t waiton_ptid = minus_one_ptid;
-#endif
 
   memset (ecs, 0, sizeof (*ecs));
 
diff -r 5e82b98aeb9b -r 47cf1c6f1d72 external/gpl3/gdb/dist/gdb/nbsd-nat.c
--- a/external/gpl3/gdb/dist/gdb/nbsd-nat.c     Fri May 03 16:06:56 2019 +0000
+++ b/external/gpl3/gdb/dist/gdb/nbsd-nat.c     Fri May 03 19:03:57 2019 +0000
@@ -360,6 +360,17 @@
 {
   ptid_t wptid;
 
+  /*
+   * Always perform polling on exact PID, overwrite the default polling on
+   * WAIT_ANY.
+   *
+   * This avoids events reported in random order reported for FORK / VFORK
+   * when child and parent events are otherwise reported in random order.
+   *
+   * Polling on traced parent always simplifies the code.
+   */
+  ptid = inferior_ptid;
+
   if (debug_nbsd_lwp)
     fprintf_unfiltered (gdb_stdlog, "NLWP: calling super_wait (%d, %ld, %ld) target_options=%#x\n",
                         ptid_get_pid (ptid), ptid_get_lwp (ptid),