Check in a pristine copy of GCC 4.8.1.

The copy of GCC that we use for Android is still not working for
mingw. Rather than finding all the differences that have crept into
our GCC, just check in a copy from
ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.8.1.tar.bz2.

GCC 4.8.1 was chosen because it is what we have been using for mingw
thus far, and the emulator doesn't yet work when upgrading to 4.9.

Bug: http://b/26523949
Change-Id: Iedc0f05243d4332cc27ccd46b8a4b203c88dcaa3

1 files changed, 117 insertions, 0 deletions

diff --git a/gcc-4.8.1/gcc/testsuite/g++.dg/ext/cleanup-10.C b/gcc-4.8.1/gcc/testsuite/g++.dg/ext/cleanup-10.C
new file mode 100644
index 000000000..eeb607b29
--- /dev/null
+++ b/gcc-4.8.1/gcc/testsuite/g++.dg/ext/cleanup-10.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 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;
+  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 ();
+}