Update libbacktrace to 11b1a9c476b2df514d620d479407f2cf217cb373

Source: https://github.com/gcc-mirror/gcc

src/libbacktrace/ChangeLog

@@ -1,3 +1,70 @@
+2016-01-04 Jakub Jelinek <jakub@redhat.com>
+
+ Update copyright years.
+
+2015-12-18 Andris Pavenis <andris.pavenis@iki.fi>
+
+ * configure.ac: Specify that DJGPP do not have mmap even when sys/mman.h exists
+ * configure: Regenerate
+
+2015-12-09 John David Anglin <danglin@gcc.gnu.org>
+
+ PR 68115/libfortran
+ * configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
+ * configure: Regenerate.
+ * elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
+ to void.
+
+2015-09-17 Ian Lance Taylor <iant@google.com>
+
+ * posix.c (backtrace_open): Cast second argument of open() to int.
+
+2015-09-11 Ian Lance Taylor <iant@google.com>
+
+ * Makefile.am (backtrace.lo): Depend on internal.h.
+ (sort.lo, stest.lo): Add explicit dependencies.
+ * Makefile.in: Rebuild.
+
+2015-09-09 Hans-Peter Nilsson <hp@axis.com>
+
+ * backtrace.c: #include <sys/types.h>.
+
+2015-09-08 Ian Lance Taylor <iant@google.com>
+
+ PR other/67457
+ * backtrace.c: #include "internal.h".
+ (struct backtrace_data): Add can_alloc field.
+ (unwind): If can_alloc is false, don't try to get file/line
+ information.
+ (backtrace_full): Set can_alloc field in bdata.
+ * alloc.c (backtrace_alloc): Don't call error_callback if it is
+ NULL.
+ * mmap.c (backtrace_alloc): Likewise.
+ * internal.h: Update comments for backtrace_alloc and
+ backtrace_free.
+
+2015-09-08 Ian Lance Taylor <iant@google.com>
+
+ PR other/67457
+ * mmap.c (backtrace_alloc): Correct test for mmap failure.
+
+2015-08-31 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
+
+ * configure.ac: For spu-*-* targets, set have_fcntl to no.
+ * configure: Regenerate.
+
+2015-08-27 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
+
+ * configure.ac: Remove [disable-shared] argument to LT_INIT.
+ Remove setting PIC_FLAG when building as target library.
+ * configure: Regenerate.
+
+2015-08-26 Hans-Peter Nilsson <hp@axis.com>
+
+ * configure.ac: Only compile with -fPIC if the target
+ supports it.
+ * configure: Regenerate.
+
 2015-08-24 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
 
  * configure.ac: Set have_mmap to no on spu-*-* targets.
@@ -497,3 +564,9 @@
 2012-09-17 Ian Lance Taylor <iant@google.com>
 
  * Initial implementation.
+
+Copyright (C) 2012-2016 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.

src/libbacktrace/Makefile.am

@@ -1,5 +1,5 @@
 # Makefile.am -- Backtrace Makefile.
-# Copyright (C) 2012-2015 Free Software Foundation, Inc.
+# Copyright (C) 2012-2016 Free Software Foundation, Inc.
 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
@@ -116,7 +116,7 @@ endif NATIVE
 
 INCDIR = $(top_srcdir)/../include
 alloc.lo: config.h backtrace.h internal.h
-backtrace.lo: config.h backtrace.h
+backtrace.lo: config.h backtrace.h internal.h
 btest.lo: (INCDIR)/filenames.h backtrace.h backtrace-supported.h
 dwarf.lo: config.h $(INCDIR)/dwarf2.h $(INCDIR)/dwarf2.def \
  $(INCDIR)/filenames.h backtrace.h internal.h
@@ -130,5 +130,7 @@ posix.lo: config.h backtrace.h internal.h
 print.lo: config.h backtrace.h internal.h
 read.lo: config.h backtrace.h internal.h
 simple.lo: config.h backtrace.h internal.h
+sort.lo: config.h backtrace.h internal.h
+stest.lo: config.h backtrace.h internal.h
 state.lo: config.h backtrace.h backtrace-supported.h internal.h
 unknown.lo: config.h backtrace.h internal.h

src/libbacktrace/Makefile.in

@@ -162,6 +162,7 @@ AUTOMAKE = @AUTOMAKE@
 AWK = @AWK@
 BACKTRACE_FILE = @BACKTRACE_FILE@
 BACKTRACE_SUPPORTED = @BACKTRACE_SUPPORTED@
+BACKTRACE_SUPPORTS_DATA = @BACKTRACE_SUPPORTS_DATA@
 BACKTRACE_SUPPORTS_THREADS = @BACKTRACE_SUPPORTS_THREADS@
 BACKTRACE_USES_MALLOC = @BACKTRACE_USES_MALLOC@
 CC = @CC@
@@ -745,7 +746,7 @@ uninstall-am:
  uninstall-am
 
 alloc.lo: config.h backtrace.h internal.h
-backtrace.lo: config.h backtrace.h
+backtrace.lo: config.h backtrace.h internal.h
 btest.lo: (INCDIR)/filenames.h backtrace.h backtrace-supported.h
 dwarf.lo: config.h $(INCDIR)/dwarf2.h $(INCDIR)/dwarf2.def \
  $(INCDIR)/filenames.h backtrace.h internal.h
@@ -759,6 +760,8 @@ posix.lo: config.h backtrace.h internal.h
 print.lo: config.h backtrace.h internal.h
 read.lo: config.h backtrace.h internal.h
 simple.lo: config.h backtrace.h internal.h
+sort.lo: config.h backtrace.h internal.h
+stest.lo: config.h backtrace.h internal.h
 state.lo: config.h backtrace.h backtrace-supported.h internal.h
 unknown.lo: config.h backtrace.h internal.h
 

src/libbacktrace/alloc.c

@@ -1,5 +1,5 @@
 /* alloc.c -- Memory allocation without mmap.
- Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
  Written by Ian Lance Taylor, Google.
 
 Redistribution and use in source and binary forms, with or without
@@ -44,7 +44,8 @@ POSSIBILITY OF SUCH DAMAGE. */
  backtrace functions may not be safely invoked from a signal
  handler. */
 
-/* Allocate memory like malloc. */
+/* Allocate memory like malloc. If ERROR_CALLBACK is NULL, don't
+ report an error. */
 
 void *
 backtrace_alloc (struct backtrace_state *state ATTRIBUTE_UNUSED,
@@ -55,7 +56,10 @@ backtrace_alloc (struct backtrace_state *state ATTRIBUTE_UNUSED,
 
  ret = malloc (size);
  if (ret == NULL)
- error_callback (data, "malloc", errno);
+ {
+ if (error_callback)
+ error_callback (data, "malloc", errno);
+ }
  return ret;
 }
 

src/libbacktrace/ansidecl.h

@@ -1,7 +1,5 @@
 /* ANSI and traditional C compatability macros
- Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2013
- Free Software Foundation, Inc.
+ Copyright (C) 1991-2015 Free Software Foundation, Inc.
  This file is part of the GNU C Library.
 
 This program is free software; you can redistribute it and/or modify
@@ -276,6 +274,15 @@ So instead we use the macro below and test it against specific values. */
 # endif /* GNUC >= 4.3 */
 #endif /* ATTRIBUTE_HOT */
 
+/* Attribute 'no_sanitize_undefined' was valid as of gcc 4.9. */
+#ifndef ATTRIBUTE_NO_SANITIZE_UNDEFINED
+# if (GCC_VERSION >= 4009)
+# define ATTRIBUTE_NO_SANITIZE_UNDEFINED __attribute__ ((no_sanitize_undefined))
+# else
+# define ATTRIBUTE_NO_SANITIZE_UNDEFINED
+# endif /* GNUC >= 4.9 */
+#endif /* ATTRIBUTE_NO_SANITIZE_UNDEFINED */
+
 /* We use __extension__ in some places to suppress -pedantic warnings
  about GCC extensions. This feature didn't work properly before
  gcc 2.8. */
@@ -304,6 +311,15 @@ So instead we use the macro below and test it against specific values. */
 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
 #else
 #define ENUM_BITFIELD(TYPE) unsigned int
+#endif
+
+ /* This is used to mark a class or virtual function as final. */
+#if __cplusplus >= 201103L
+#define GCC_FINAL final
+#elif GCC_VERSION >= 4007
+#define GCC_FINAL __final
+#else
+#define GCC_FINAL
 #endif
 
 #ifdef __cplusplus

src/libbacktrace/atomic.c

@@ -1,5 +1,5 @@
 /* atomic.c -- Support for atomic functions if not present.
- Copyright (C) 2013-2015 Free Software Foundation, Inc.
+ Copyright (C) 2013-2016 Free Software Foundation, Inc.
  Written by Ian Lance Taylor, Google.
 
 Redistribution and use in source and binary forms, with or without

src/libbacktrace/backtrace-supported.h.in

@@ -1,5 +1,5 @@
 /* backtrace-supported.h.in -- Whether stack backtrace is supported.
- Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
  Written by Ian Lance Taylor, Google.
 
 Redistribution and use in source and binary forms, with or without

src/libbacktrace/backtrace.c

@@ -1,5 +1,5 @@
 /* backtrace.c -- Entry point for stack backtrace library.
- Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
  Written by Ian Lance Taylor, Google.
 
 Redistribution and use in source and binary forms, with or without
@@ -32,8 +32,11 @@ POSSIBILITY OF SUCH DAMAGE. */
 
 #include "config.h"
 
+#include <sys/types.h>
+
 #include "unwind.h"
 #include "backtrace.h"
+#include "internal.h"
 
 /* The main backtrace_full routine. */
 
@@ -53,6 +56,8 @@ struct backtrace_data
  void *data;
  /* Value to return from backtrace_full. */
  int ret;
+ /* Whether there is any memory available. */
+ int can_alloc;
 };
 
 /* Unwind library callback routine. This is passed to
@@ -80,8 +85,11 @@ unwind (struct _Unwind_Context *context, void *vdata)
  if (!ip_before_insn)
  --pc;
 
- bdata->ret = backtrace_pcinfo (bdata->state, pc, bdata->callback,
- bdata->error_callback, bdata->data);
+ if (!bdata->can_alloc)
+ bdata->ret = bdata->callback (bdata->data, pc, NULL, 0, NULL);
+ else
+ bdata->ret = backtrace_pcinfo (bdata->state, pc, bdata->callback,
+ bdata->error_callback, bdata->data);
  if (bdata->ret != 0)
  return _URC_END_OF_STACK;
 
@@ -96,13 +104,26 @@ backtrace_full (struct backtrace_state *state, int skip,
  backtrace_error_callback error_callback, void *data)
 {
  struct backtrace_data bdata;
+ void *p;
 
  bdata.skip = skip + 1;
  bdata.state = state;
  bdata.callback = callback;
  bdata.error_callback = error_callback;
  bdata.data = data;
  bdata.ret = 0;
+
+ /* If we can't allocate any memory at all, don't try to produce
+ file/line information. */
+ p = backtrace_alloc (state, 4096, NULL, NULL);
+ if (p == NULL)
+ bdata.can_alloc = 0;
+ else
+ {
+ backtrace_free (state, p, 4096, NULL, NULL);
+ bdata.can_alloc = 1;
+ }
+
  _Unwind_Backtrace (unwind, &bdata);
  return bdata.ret;
 }

src/libbacktrace/backtrace.h

@@ -1,5 +1,5 @@
 /* backtrace.h -- Public header file for stack backtrace library.
- Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
  Written by Ian Lance Taylor, Google.
 
 Redistribution and use in source and binary forms, with or without

src/libbacktrace/btest.c

@@ -1,5 +1,5 @@
 /* btest.c -- Test for libbacktrace library
- Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ Copyright (C) 2012-2016 Free Software Foundation, Inc.
  Written by Ian Lance Taylor, Google.
 
 Redistribution and use in source and binary forms, with or without