Remove the global stop_signal in favour of a per-thread

	stop_signal.

	* inferior.h (stop_signal): Delete.
	* gdbthread.h (save_infrun_state, load_infrun_state): Remove
	stop_signal argument.
	* thread.c (load_infrun_state, save_infrun_state): Remove
	stop_signal argument.  Don't reference it.

	* infcmd.c (stop_signal): Delete.
	(program_info): Adjust.
	* infrun.c (resume): Clear stop_signal.
	(proceed): Adjust.  Pass the last stop_signal to the thread we're
	resuming.
	(context_switch): Don't context-switch stop_signal.
	(handle_inferior_event, keep_going): Adjust.
	(save_inferior_status, restore_inferior_status): Adjust.

	* fbsd-nat.c: Include "gdbthread.h".
	(find_signalled_thread, find_stop_signal): New.
	(fbsd_make_corefile_notes): Use it.
	* fork-child.c (startup_inferior): Adjust.

	* linux-nat.c (get_pending_status): Adjust.
	(linux_nat_do_thread_registers): Adjust.
	(find_signalled_thread, find_stop_signal): New.
	(linux_nat_do_thread_registers): Add stop_signal parameter.
	(struct linux_nat_corefile_thread_data): Add stop_signal member.
	(linux_nat_corefile_thread_callback): Pass stop_signal.
	(linux_nat_do_registers): Delete.
	(linux_nat_make_corefile_notes): Use find_stop_signal.  Assume
	there's always a thread.

	* procfs.c (find_signalled_thread, find_stop_signal): New.
	(find_stop_signal): New.
	(procfs_do_thread_registers): Add stop_signal parameter.
	(struct procfs_corefile_thread_data): Add stop_signal member.
	(procfs_corefile_thread_callback): Pass args->stop_signal.
	(procfs_make_note_section): Find the last stop_signal.

	* solib-irix.c: Include gdbthread.h.
	(irix_solib_create_inferior_hook): Adjust.
	* solib-osf.c: Include gdbthread.h.
	(osf_solib_create_inferior_hook): Adjust.
	* solib-sunos.c: Include gdbthread.h.
	(sunos_solib_create_inferior_hook): Adjust.
	* solib-svr4.c: Include gdbthread.h.
	(svr4_solib_create_inferior_hook): Adjust.

	* win32-nat.c (do_initial_win32_stuff): Adjust.

1 files changed, 7 insertions, 3 deletions

diff --git a/gdb/solib-irix.c b/gdb/solib-irix.c
index 0e80b94d9b8..5b612ec6c62 100644
--- a/gdb/solib-irix.c
+++ b/gdb/solib-irix.c
@@ -31,6 +31,7 @@
 #include "gdbcore.h"
 #include "target.h"
 #include "inferior.h"
+#include "gdbthread.h"
 
 #include "solist.h"
 #include "solib.h"
@@ -421,6 +422,8 @@ enable_break (void)
 static void
 irix_solib_create_inferior_hook (void)
 {
+  struct thread_info *tp;
+
   if (!enable_break ())
     {
       warning (_("shared library handler failed to enable breakpoint"));
@@ -432,15 +435,16 @@ irix_solib_create_inferior_hook (void)
      can go groveling around in the dynamic linker structures to find
      out what we need to know about them. */
 
+  tp = inferior_thread ();
   clear_proceed_status ();
   stop_soon = STOP_QUIETLY;
-  stop_signal = TARGET_SIGNAL_0;
+  tp->stop_signal = TARGET_SIGNAL_0;
   do
     {
-      target_resume (pid_to_ptid (-1), 0, stop_signal);
+      target_resume (pid_to_ptid (-1), 0, tp->stop_signal);
       wait_for_inferior (0);
     }
-  while (stop_signal != TARGET_SIGNAL_TRAP);
+  while (tp->stop_signal != TARGET_SIGNAL_TRAP);
 
   /* We are now either at the "mapping complete" breakpoint (or somewhere
      else, a condition we aren't prepared to deal with anyway), so adjust