obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 117 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/ext/cleanup-11.C b/gcc/testsuite/g++.dg/ext/cleanup-11.C
new file mode 100644
index 000000000..0b6d11ce2
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/cleanup-11.C
@@ -0,0 +1,117 @@
+/* { dg-do run { target hppa*-*-hpux* *-*-linux* powerpc*-*-darwin* *-*-darwin[912]* } } */
+/* { dg-options "-fexceptions -fnon-call-exceptions -O2" } */
+/* Verify that cleanups work with exception handling through realtime signal
+   frames on alternate stack.  */
+
+#include <unwind.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <unistd.h>
+#include <string.h>
+
+static _Unwind_Reason_Code
+force_unwind_stop (int version, _Unwind_Action actions,
+                   _Unwind_Exception_Class exc_class,
+                   struct _Unwind_Exception *exc_obj,
+                   struct _Unwind_Context *context,
+                   void *stop_parameter)
+{
+  if (actions & _UA_END_OF_STACK)
+    abort ();
+  return _URC_NO_REASON;
+}
+
+static void force_unwind ()
+{
+  struct _Unwind_Exception *exc 
+    = (struct _Unwind_Exception*) malloc (sizeof (*exc));
+  memset (&exc->exception_class, 0, sizeof (exc->exception_class));
+  exc->exception_cleanup = 0;
+                   
+#ifndef __USING_SJLJ_EXCEPTIONS__
+  _Unwind_ForcedUnwind (exc, force_unwind_stop, 0);
+#else
+  _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);
+#endif
+                   
+  abort ();
+}
+
+int count;
+char *null;
+
+static void counter (void *p __attribute__((unused)))
+{
+  ++count;
+}
+
+static void handler (void *p __attribute__((unused)))
+{
+  if (count != 2)
+    abort ();
+  exit (0);
+}
+
+static int __attribute__((noinline)) fn5 ()
+{
+  char dummy __attribute__((cleanup (counter)));
+  force_unwind ();
+  return 0;
+}
+
+static void fn4 (int sig, siginfo_t *info, void *ctx)
+{
+  char dummy __attribute__((cleanup (counter)));
+  fn5 ();
+  null = NULL;
+}
+
+static void fn3 ()
+{
+  abort ();
+}
+
+static int __attribute__((noinline)) fn2 ()
+{
+  *null = 0;
+  fn3 ();
+  return 0;
+}
+
+static int __attribute__((noinline)) fn1 ()
+{
+  stack_t ss;
+  struct sigaction s;
+
+  ss.ss_size = 4 * sysconf (_SC_PAGESIZE);
+  if (ss.ss_size < SIGSTKSZ)
+    ss.ss_size = SIGSTKSZ;
+  ss.ss_sp = malloc (ss.ss_size);
+  if (ss.ss_sp == NULL)
+    exit (1);
+  ss.ss_flags = 0;
+  if (sigaltstack (&ss, NULL) < 0)
+    exit (1);
+
+  sigemptyset (&s.sa_mask);
+  s.sa_sigaction = fn4;
+  s.sa_flags = SA_RESETHAND | SA_ONSTACK | SA_SIGINFO;
+  sigaction (SIGSEGV, &s, NULL);
+  sigaction (SIGBUS, &s, NULL);
+  fn2 ();
+  return 0;
+}
+
+static int __attribute__((noinline)) fn0 ()
+{
+  char dummy __attribute__((cleanup (handler)));
+  fn1 ();
+  null = 0;
+  return 0;
+}
+
+int main()
+{ 
+  fn0 ();
+  abort ();
+}