Index: gcc/ChangeLog

2004-06-28  Geoffrey Keating  <geoffk@apple.com>
	    Andreas Tobler  <a.tobler@schweiz.ch>

	PR 15813
	* dwarf2out.c (reg_save): Output DW_CFA_same_value when a
	register is saved in itself.
	(initial_return_save): If the return address is a register,
	it's already there, don't bother to mention it in the CFI.
	(struct queued_reg_save): Add field saved_reg.
	(struct reg_saved_in_data): New.
	(regs_saved_in_regs): New.
	(num_regs_saved_in_regs): New.
	(queue_reg_save): Add extra parameter to specify register saved
	in register.  Remove duplicate entries from queue.  Add comment
	for function.
	(flush_queued_reg_saves): Handle registers saved in registers.
	Update regs_saved_in_regs.  Add comment for function.
	(clobbers_queued_reg_save): Add comment for function.  Allow
	for regs_saved_in_regs.
	(reg_saved_in): New.
	(dwarf2out_frame_debug_expr): Handle saving registers in other
	registers.
	(dwarf2out_frame_debug): Reset regs_saved_in_regs.
	* unwind-dw2.c (execute_cfa_program): Correct handling of
	DW_CFA_same_value.  Add FIXME comment about incorrect implementation
	of DW_CFA_restore_extended.
	* config/rs6000/rs6000.c (rs6000_emit_prologue): Let
	dwarf2out_frame_debug_expr see instructions that save registers
	in other registers or save those other registers in memory.

	* unwind-dw2.c (DWARF_FRAME_REGISTERS): Move to unwind-dw2.h.
	(_Unwind_FrameState): Likewise.
	* unwind-dw2.h: New.
	* Makefile.in (LIB2ADDEHDEP): Add unwind-dw2.h.
	* config/rs6000/darwin-fallback.c: New file.
	* config/rs6000/darwin.h (MD_FALLBACK_FRAME_STATE_FOR): Define.
	* config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Add darwin-fallback.o.

Index: gcc/testsuite/ChangeLog
2004-06-26  Geoffrey Keating  <geoffk@apple.com>
	    Andreas Tobler  <a.tobler@schweiz.ch>

	* gcc.dg/cleanup-10.c: Run on all Linux platforms and powerpc-darwin.
	Use SA_RESETHAND rather than SA_ONESHOT.  Trap SIGBUS as well
	as SIGSEGV.
	* gcc.dg/cleanup-11.c: Likewise.
	* gcc.dg/cleanup-8.c: Likewise.
	* gcc.dg/cleanup-9.c: Likewise.
	* gcc.dg/cleanup-5.c: Run on all platforms.

Index: libjava/ChangeLog
2004-06-26  Geoffrey Keating  <geoffk@apple.com>
	    Andreas Tobler  <a.tobler@schweiz.ch>

	* configure.host (powerpc-*-darwin*): New case, define
	can_unwind_signal.
	* configure.in (*-*-darwin*): New case, point to darwin-signal.h.
	* configure: Regenerate.
	* include/darwin-signal.h: New.

Co-Authored-By: Andreas Tobler <a.tobler@schweiz.ch>

From-SVN: r83953

1 files changed, 51 insertions, 0 deletions

diff --git a/libjava/include/darwin-signal.h b/libjava/include/darwin-signal.h
new file mode 100644
index 0000000..5003e21
--- /dev/null
+++ b/libjava/include/darwin-signal.h
@@ -0,0 +1,51 @@
+/* darwin-signal.h - Catch runtime signals and turn them into exceptions,
+   on a Darwin system.  */
+
+/* Copyright (C) 2004  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.  */
+
+/* This file is really more of a specification.  The rest of the system
+   should be arranged so that this Just Works.  */
+
+#ifndef JAVA_SIGNAL_H
+# define JAVA_SIGNAL_H 1
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <signal.h>
+
+typedef void (* SIG_PF)(int);
+
+# define HANDLE_SEGV 1
+# undef HANDLE_FPE
+
+# define SIGNAL_HANDLER(_name)					\
+  static void _name (int _dummy __attribute__ ((unused)))
+
+# define MAKE_THROW_FRAME(_exception)
+
+# define INIT_SEGV				\
+  do {						\
+      struct sigaction sa;			\
+      sa.sa_handler = catch_segv;		\
+      sigemptyset (&sa.sa_mask);		\
+      sa.sa_flags = SA_NODEFER;			\
+      sigaction (SIGBUS, &sa, NULL);		\
+      sigaction (SIGSEGV, &sa, NULL);		\
+    } while (0)
+
+# define INIT_FPE				\
+  do {						\
+      struct sigaction sa;			\
+      sa.sa_handler = catch_fpe;		\
+      sigemptyset (&sa.sa_mask);		\
+      sa.sa_flags = SA_NODEFER;			\
+      sigaction (SIGFPE, &sa, NULL);		\
+    } while (0)
+
+#endif /* JAVA_SIGNAL_H */