Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 57 insertions, 0 deletions

diff --git a/gcc-4.9/libjava/include/posix-signal.h b/gcc-4.9/libjava/include/posix-signal.h
new file mode 100644
index 000000000..a0f96a905
--- /dev/null
+++ b/gcc-4.9/libjava/include/posix-signal.h
@@ -0,0 +1,57 @@
+// posix-signal.h - Catch runtime signals and turn them into exceptions.
+
+/* Copyright (C) 1998, 1999, 2000, 2009, 2011, 2012 Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#ifndef JAVA_SIGNAL_H
+#define JAVA_SIGNAL_H 1
+
+#include <signal.h>
+
+#define HANDLE_SEGV 1
+#define HANDLE_FPE 1
+
+/* Different implementations of MD_FALLBACK_FRAME_STATE_FOR either require
+   SA_SIGINFO being set or fail if so.  Cf. gcc/ada/init.c
+   (__gnat_install_handler) for details.  */
+
+#if defined __sun__ && defined __svr4__
+#define SA_FLAGS SA_NODEFER | SA_SIGINFO
+#else
+#error Must define SA_FLAGS.
+#endif
+
+#if SA_FLAGS & SA_SIGINFO
+#define SIGNAL_HANDLER(_name)						\
+static void _Jv_##_name (int,						\
+			 siginfo_t *_si __attribute__ ((__unused__)),	\
+			 void *_uc __attribute__ ((__unused__)))
+#define sa_signal_handler sa_sigaction
+#else
+#define SIGNAL_HANDLER(_name)						\
+static void _Jv_##_name (int)
+#define sa_signal_handler sa_handler
+#endif
+
+#define MAKE_THROW_FRAME(_exception)
+
+#define _INIT_SIG_HANDLER(_SIG, _ACTION)     				\
+do                                           				\
+  {									\
+    struct sigaction act;						\
+    act.sa_signal_handler = _Jv_##_ACTION;				\
+    act.sa_flags = SA_FLAGS;						\
+    sigemptyset (&act.sa_mask);						\
+    sigaction(_SIG, &act, NULL);					\
+  }									\
+while (0)
+
+#define INIT_SEGV	_INIT_SIG_HANDLER (SIGSEGV, catch_segv)
+#define INIT_FPE	_INIT_SIG_HANDLER (SIGFPE, catch_fpe)
+
+#endif /* JAVA_SIGNAL_H */