2005-11-15  Jeff Johnston  <jjohnstn@redhat.com>

	* linux-thread-db.c (thread_db_wait): Don't bother continuing if
	the wait result indicates the program terminated with a signal.
	* linux-nat.c (linux_nat_wait): For SIGILL and SIGTRAP, don't
	throw away the event if the user has specified nostop noprint.

gdb/testsuite:

2005-11-15  Jeff Johnston  <jjohnstn@redhat.com>

	* gdb.arch/ia64-sigill.c: New test.
	* gdb.arch/ia64-sigill.exp: Ditto.

Index: gdb-6.6/gdb/testsuite/gdb.arch/ia64-sigill.exp
===================================================================
--- /dev/null
+++ gdb-6.6/gdb/testsuite/gdb.arch/ia64-sigill.exp
@@ -0,0 +1,59 @@
+#   Copyright 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@prep.ai.mit.edu
+
+# This file was written by Jeff Johnston (jjohnstn@redhat.com)
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+#
+# test running programs
+#
+set prms_id 0
+set bug_id 0
+
+if ![istarget "ia64-*-*"] then {
+    return
+}
+
+set testfile "ia64-sigill"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+# Deliberately compile with pthreads, even though test is single-threaded.
+# We want to force gdb thread code to be exercised.
+if  { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
+    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+}
+
+if [get_compiler_info ${binfile}] {
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+# We set up SIGILL nostop, noprint, pass and then run the program.
+# We expect to just see a normal run.
+gdb_test "handle SIGILL nostop noprint" "SIGILL.*No.*No.*Yes.*" "handle sigill"
+gdb_test "run" "Starting program.*ia64-sigill.*\[New thread.*\].*hello world.*Program exited normally." "run to exit"
+ 
Index: gdb-6.6/gdb/testsuite/gdb.arch/ia64-sigill.c
===================================================================
--- /dev/null
+++ gdb-6.6/gdb/testsuite/gdb.arch/ia64-sigill.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main()
+{
+  printf ("hello world\n");
+  return 0;
+}
+
Index: gdb-6.6/gdb/linux-nat.c
===================================================================
--- gdb-6.6.orig/gdb/linux-nat.c
+++ gdb-6.6/gdb/linux-nat.c
@@ -2241,7 +2241,8 @@ retry:
      threads can be a bit time-consuming so if we want decent
      performance with heavily multi-threaded programs, especially when
      they're using a high frequency timer, we'd better avoid it if we
-     can.  */
+     can.  For possible trap signals like SIGTRAP and SIGILL, don't
+     avoid reporting.  */
 
   if (WIFSTOPPED (status))
     {
@@ -2252,7 +2253,9 @@ retry:
       if (!lp->step
 	  && signal_stop_state (signo) == 0
 	  && signal_print_state (signo) == 0
-	  && signal_pass_state (signo) == 1)
+	  && signal_pass_state (signo) == 1
+	  && signo != TARGET_SIGNAL_ILL
+	  && signo != TARGET_SIGNAL_TRAP)
 	{
 	  /* FIMXE: kettenis/2001-06-06: Should we resume all threads
 	     here?  It is not clear we should.  GDB may not expect