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libbacktrace: update to current version from GCC trunk

This adds DWARF 5 support as well as an enhanced testsuite.

Patch assembled by Than McIntosh.
lib
Ian Lance Taylor 2 years ago
parent
commit
559ab7cab4
  1. 287
      Makefile.am
  2. 1709
      Makefile.in
  3. 735
      aclocal.m4
  4. 15
      alloc.c
  5. 136
      allocfail.c
  6. 104
      allocfail.sh
  7. 2
      atomic.c
  8. 2
      backtrace-supported.h.in
  9. 4
      backtrace.c
  10. 10
      backtrace.h
  11. 17
      btest.c
  12. 348
      compile
  13. 8
      config.h.in
  14. 38
      config/enable.m4
  15. 31
      config/lead-dot.m4
  16. 1157
      config/libtool.m4
  17. 11
      config/ltoptions.m4
  18. 20
      config/ltsugar.m4
  19. 10
      config/ltversion.m4
  20. 10
      config/lt~obsolete.m4
  21. 68
      config/multi.m4
  22. 116
      config/override.m4
  23. 35
      config/unwind_ipinfo.m4
  24. 227
      config/warnings.m4
  25. 3065
      configure
  26. 38
      configure.ac
  27. 2230
      dwarf.c
  28. 5
      edtest.c
  29. 2
      edtest2.c
  30. 235
      elf.c
  31. 2
      fileline.c
  32. 3
      filenames.h
  33. 3
      filetype.awk
  34. 65
      install-debuginfo-for-buildid.sh.in
  35. 114
      instrumented_alloc.c
  36. 60
      internal.h
  37. 7444
      libtool.m4
  38. 1810
      ltmain.sh
  39. 369
      ltoptions.m4
  40. 123
      ltsugar.m4
  41. 23
      ltversion.m4
  42. 98
      lt~obsolete.m4
  43. 4
      mmap.c
  44. 10
      mmapio.c
  45. 2
      nounwind.c
  46. 56
      pecoff.c
  47. 2
      posix.c
  48. 4
      print.c
  49. 10
      read.c
  50. 4
      simple.c
  51. 2
      sort.c
  52. 2
      state.c
  53. 2
      stest.c
  54. 148
      test-driver
  55. 55
      test_format.c
  56. 2
      testlib.c
  57. 2
      testlib.h
  58. 2
      ttest.c
  59. 92
      unittest.c
  60. 2
      unknown.c
  61. 500
      xcoff.c
  62. 2
      ztest.c

287
Makefile.am

@ -1,5 +1,5 @@
# Makefile.am -- Backtrace Makefile.
# Copyright (C) 2012-2018 Free Software Foundation, Inc.
# Copyright (C) 2012-2019 Free Software Foundation, Inc.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
@ -31,6 +31,8 @@
ACLOCAL_AMFLAGS = -I config
AM_CPPFLAGS =
AM_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) $(PIC_FLAG)
include_HEADERS = backtrace.h backtrace-supported.h
@ -83,46 +85,240 @@ libbacktrace_la_DEPENDENCIES = $(libbacktrace_la_LIBADD)
# Testsuite.
# Add test to this variable, if you want it to be build.
check_PROGRAMS =
CLEANFILES =
TESTS = $(check_PROGRAMS)
# Add test to this variable, if you want it to be run.
TESTS =
# Add test to this variable, if you want it to be build and run.
BUILDTESTS =
if NATIVE
check_LTLIBRARIES = libbacktrace_alloc.la
libbacktrace_alloc_la_SOURCES = $(libbacktrace_la_SOURCES)
libbacktrace_alloc_la_LIBADD = $(BACKTRACE_FILE) $(FORMAT_FILE) read.lo alloc.lo
libbacktrace_alloc_la_DEPENDENCIES = $(libbacktrace_alloc_la_LIBADD)
check_LTLIBRARIES += libbacktrace_noformat.la
libbacktrace_noformat_la_SOURCES = $(libbacktrace_la_SOURCES)
libbacktrace_noformat_la_LIBADD = $(BACKTRACE_FILE) $(VIEW_FILE) $(ALLOC_FILE)
libbacktrace_noformat_la_DEPENDENCIES = $(libbacktrace_noformat_la_LIBADD)
if HAVE_ELF
if HAVE_OBJCOPY_DEBUGLINK
TEST_BUILD_ID_DIR=$(abs_builddir)/usr/lib/debug/.build-id/
check_LTLIBRARIES += libbacktrace_elf_for_test.la
libbacktrace_elf_for_test_la_SOURCES = $(libbacktrace_la_SOURCES)
libbacktrace_elf_for_test_la_LIBADD = $(BACKTRACE_FILE) elf_for_test.lo \
$(VIEW_FILE) $(ALLOC_FILE)
elf_for_test.c: elf.c
SEARCH='^#define SYSTEM_BUILD_ID_DIR.*$$'; \
REPLACE="#define SYSTEM_BUILD_ID_DIR \"$(TEST_BUILD_ID_DIR)\""; \
$(SED) "s%$$SEARCH%$$REPLACE%" \
$< \
> $@.tmp
mv $@.tmp $@
endif HAVE_OBJCOPY_DEBUGLINK
endif HAVE_ELF
elf_%.c: elf.c
SEARCH='#error "Unknown BACKTRACE_ELF_SIZE"'; \
REPLACE='#undef BACKTRACE_ELF_SIZE\
#define BACKTRACE_ELF_SIZE'; \
$(SED) "s/^$$SEARCH\$$/$$REPLACE $*/" \
$< \
> $@.tmp
mv $@.tmp $@
xcoff_%.c: xcoff.c
SEARCH='#error "Unknown BACKTRACE_XCOFF_SIZE"'; \
REPLACE='#undef BACKTRACE_XCOFF_SIZE\
#define BACKTRACE_XCOFF_SIZE'; \
$(SED) "s/^$$SEARCH\$$/$$REPLACE $*/" \
$< \
> $@.tmp
mv $@.tmp $@
test_elf_32_SOURCES = test_format.c testlib.c
test_elf_32_LDADD = libbacktrace_noformat.la elf_32.lo
BUILDTESTS += test_elf_32
test_elf_64_SOURCES = test_format.c testlib.c
test_elf_64_LDADD = libbacktrace_noformat.la elf_64.lo
BUILDTESTS += test_elf_64
test_xcoff_32_SOURCES = test_format.c testlib.c
test_xcoff_32_LDADD = libbacktrace_noformat.la xcoff_32.lo
BUILDTESTS += test_xcoff_32
test_xcoff_64_SOURCES = test_format.c testlib.c
test_xcoff_64_LDADD = libbacktrace_noformat.la xcoff_64.lo
BUILDTESTS += test_xcoff_64
test_pecoff_SOURCES = test_format.c testlib.c
test_pecoff_LDADD = libbacktrace_noformat.la pecoff.lo
BUILDTESTS += test_pecoff
test_unknown_SOURCES = test_format.c testlib.c
test_unknown_LDADD = libbacktrace_noformat.la unknown.lo
BUILDTESTS += test_unknown
unittest_SOURCES = unittest.c testlib.c
unittest_LDADD = libbacktrace.la
BUILDTESTS += unittest
unittest_alloc_SOURCES = $(unittest_SOURCES)
unittest_alloc_LDADD = libbacktrace_alloc.la
BUILDTESTS += unittest_alloc
check_LTLIBRARIES += libbacktrace_instrumented_alloc.la
libbacktrace_instrumented_alloc_la_SOURCES = $(libbacktrace_la_SOURCES)
libbacktrace_instrumented_alloc_la_LIBADD = $(BACKTRACE_FILE) $(FORMAT_FILE) \
read.lo instrumented_alloc.lo
libbacktrace_instrumented_alloc_la_DEPENDENCIES = \
$(libbacktrace_instrumented_alloc_la_LIBADD)
instrumented_alloc.lo: alloc.c
allocfail_SOURCES = allocfail.c testlib.c
allocfail_LDADD = libbacktrace_instrumented_alloc.la
check_PROGRAMS += allocfail
allocfail.sh: allocfail
TESTS += allocfail.sh
if HAVE_ELF
if HAVE_OBJCOPY_DEBUGLINK
b2test_SOURCES = $(btest_SOURCES)
b2test_CFLAGS = $(btest_CFLAGS)
b2test_LDFLAGS = -Wl,--build-id
b2test_LDADD = libbacktrace_elf_for_test.la
check_PROGRAMS += b2test
TESTS += b2test_buildid
if HAVE_DWZ
b3test_SOURCES = $(btest_SOURCES)
b3test_CFLAGS = $(btest_CFLAGS)
b3test_LDFLAGS = -Wl,--build-id
b3test_LDADD = libbacktrace_elf_for_test.la
check_PROGRAMS += b3test
TESTS += b3test_dwz_buildid
endif HAVE_DWZ
endif HAVE_OBJCOPY_DEBUGLINK
endif HAVE_ELF
btest_SOURCES = btest.c testlib.c
btest_CFLAGS = $(AM_CFLAGS) -g -O
btest_LDADD = libbacktrace.la
check_PROGRAMS += btest
BUILDTESTS += btest
if HAVE_ELF
btest_lto_SOURCES = btest.c testlib.c
btest_lto_CFLAGS = $(AM_CFLAGS) -g -O -flto
btest_lto_LDADD = libbacktrace.la
BUILDTESTS += btest_lto
endif HAVE_ELF
btest_alloc_SOURCES = $(btest_SOURCES)
btest_alloc_CFLAGS = $(btest_CFLAGS)
btest_alloc_LDADD = libbacktrace_alloc.la
BUILDTESTS += btest_alloc
if HAVE_DWZ
btest_static_SOURCES = btest.c testlib.c
btest_static_CFLAGS = $(AM_CFLAGS) -g -O
btest_static_LDADD = libbacktrace.la
btest_static_LDFLAGS = -static-libtool-libs
%_dwz: %
rm -f $@ $@_common.debug
cp $< $@_1
cp $< $@_2
$(DWZ) -m $@_common.debug $@_1 $@_2
rm -f $@_2
mv $@_1 $@
check_PROGRAMS += btest_static
TESTS += btest_dwz
if HAVE_OBJCOPY_DEBUGLINK
TESTS += btest_dwz_gnudebuglink
endif HAVE_OBJCOPY_DEBUGLINK
endif HAVE_DWZ
stest_SOURCES = stest.c
stest_LDADD = libbacktrace.la
check_PROGRAMS += stest
BUILDTESTS += stest
stest_alloc_SOURCES = $(stest_SOURCES)
stest_alloc_LDADD = libbacktrace_alloc.la
BUILDTESTS += stest_alloc
if HAVE_ELF
ztest_SOURCES = ztest.c testlib.c
ztest_CFLAGS = -DSRCDIR=\"$(srcdir)\"
ztest_LDADD = libbacktrace.la
ztest_alloc_LDADD = libbacktrace_alloc.la
if HAVE_ZLIB
ztest_LDADD += -lz
ztest_alloc_LDADD += -lz
endif
ztest_LDADD += $(CLOCK_GETTIME_LINK)
ztest_alloc_LDADD += $(CLOCK_GETTIME_LINK)
BUILDTESTS += ztest
ztest_alloc_SOURCES = $(ztest_SOURCES)
ztest_alloc_CFLAGS = $(ztest_CFLAGS)
check_PROGRAMS += ztest
BUILDTESTS += ztest_alloc
endif HAVE_ELF
edtest_SOURCES = edtest.c edtest2_build.c testlib.c
edtest_LDADD = libbacktrace.la
check_PROGRAMS += edtest
BUILDTESTS += edtest
edtest_alloc_SOURCES = $(edtest_SOURCES)
edtest_alloc_LDADD = libbacktrace_alloc.la
BUILDTESTS += edtest_alloc
edtest2_build.c: gen_edtest2_build; @true
gen_edtest2_build: $(srcdir)/edtest2.c
@ -130,30 +326,38 @@ gen_edtest2_build: $(srcdir)/edtest2.c
$(SHELL) $(srcdir)/move-if-change tmp-edtest2_build.c edtest2_build.c
echo timestamp > $@
CLEANFILES += edtest2_build.c gen_edtest2_build
if HAVE_PTHREAD
check_PROGRAMS += ttest
BUILDTESTS += ttest
ttest_SOURCES = ttest.c testlib.c
ttest_CFLAGS = $(AM_CFLAGS) -pthread
ttest_LDADD = libbacktrace.la
BUILDTESTS += ttest_alloc
ttest_alloc_SOURCES = $(ttest_SOURCES)
ttest_alloc_CFLAGS = $(ttest_CFLAGS)
ttest_alloc_LDADD = libbacktrace_alloc.la
endif HAVE_PTHREAD
if HAVE_OBJCOPY_DEBUGLINK
TESTS += dtest
TESTS += btest_gnudebuglink
dtest: btest_static
$(OBJCOPY) --only-keep-debug btest_static btest.debug
$(OBJCOPY) --strip-debug --add-gnu-debuglink=btest.debug btest_static dtest
CLEANFILES += dtest btest.debug
%_gnudebuglink: %
$(OBJCOPY) --only-keep-debug $< $@.debug
$(OBJCOPY) --strip-debug --add-gnu-debuglink=$@.debug $< $@
endif HAVE_OBJCOPY_DEBUGLINK
%_buildid: %
./install-debuginfo-for-buildid.sh \
"$(TEST_BUILD_ID_DIR)" \
$<
$(OBJCOPY) --strip-debug $< $@
if HAVE_COMPRESSED_DEBUG
ctestg_SOURCES = btest.c testlib.c
@ -166,12 +370,49 @@ ctesta_CFLAGS = $(AM_CFLAGS) -g
ctesta_LDFLAGS = -Wl,--compress-debug-sections=zlib-gabi
ctesta_LDADD = libbacktrace.la
check_PROGRAMS += ctestg ctesta
BUILDTESTS += ctestg ctesta
ctestg_alloc_SOURCES = $(ctestg_SOURCES)
ctestg_alloc_CFLAGS = $(ctestg_CFLAGS)
ctestg_alloc_LDFLAGS = $(ctestg_LDFLAGS)
ctestg_alloc_LDADD = libbacktrace_alloc.la
ctesta_alloc_SOURCES = $(ctesta_SOURCES)
ctesta_alloc_CFLAGS = $(ctesta_CFLAGS)
ctesta_alloc_LDFLAGS = $(ctesta_LDFLAGS)
ctesta_alloc_LDADD = libbacktrace_alloc.la
BUILDTESTS += ctestg_alloc ctesta_alloc
endif
if HAVE_DWARF5
dwarf5_SOURCES = btest.c testlib.c
dwarf5_CFLAGS = $(AM_CFLAGS) -gdwarf-5
dwarf5_LDADD = libbacktrace.la
BUILDTESTS += dwarf5
dwarf5_alloc_SOURCES = $(dwarf5_SOURCES)
dwarf5_alloc_CFLAGS = $(dwarf5_CFLAGS)
dwarf5_alloc_LDADD = libbacktrace_alloc.la
BUILDTESTS += dwarf5_alloc
endif
endif NATIVE
check_PROGRAMS += $(BUILDTESTS)
TESTS += $(BUILDTESTS)
CLEANFILES = $(TESTS) *.debug elf_for_test.c edtest2_build.c gen_edtest2_build
clean-local:
-rm -rf usr
# We can't use automake's automatic dependency tracking, because it
# breaks when using bootstrap-lean. Automatic dependency tracking
# with GCC bootstrap will cause some of the objects to depend on
@ -186,7 +427,7 @@ endif NATIVE
alloc.lo: config.h backtrace.h internal.h
backtrace.lo: config.h backtrace.h internal.h
btest.lo: backtrace.h backtrace-supported.h filenames.h
btest.lo: filenames.h backtrace.h backtrace-supported.h
dwarf.lo: config.h filenames.h backtrace.h internal.h
elf.lo: config.h backtrace.h internal.h
fileline.lo: config.h backtrace.h internal.h

1709
Makefile.in
File diff suppressed because it is too large
View File

735
aclocal.m4
File diff suppressed because it is too large
View File

15
alloc.c

@ -1,5 +1,5 @@
/* alloc.c -- Memory allocation without mmap.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without
@ -145,12 +145,23 @@ backtrace_vector_release (struct backtrace_state *state ATTRIBUTE_UNUSED,
backtrace_error_callback error_callback,
void *data)
{
vec->alc = 0;
if (vec->size == 0)
{
/* As of C17, realloc with size 0 is marked as an obsolescent feature, use
free instead. */
free (vec->base);
vec->base = NULL;
return 1;
}
vec->base = realloc (vec->base, vec->size);
if (vec->base == NULL)
{
error_callback (data, "realloc", errno);
return 0;
}
vec->alc = 0;
return 1;
}

136
allocfail.c

@ -0,0 +1,136 @@
/* allocfail.c -- Test for libbacktrace library
Copyright (C) 2018-2019 Free Software Foundation, Inc.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
(1) Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
(2) Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
(3) The name of the author may not be used to
endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE. */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "filenames.h"
#include "backtrace.h"
#include "backtrace-supported.h"
#include "testlib.h"
extern uint64_t get_nr_allocs (void);
extern void set_fail_at_alloc (uint64_t);
extern int at_fail_alloc_p (void);
static int test1 (void) __attribute__ ((noinline, unused));
static int f2 (int) __attribute__ ((noinline));
static int f3 (int, int) __attribute__ ((noinline));
static unsigned callback_errors = 0;
static void
error_callback_full (void *vdata ATTRIBUTE_UNUSED,
const char *msg ATTRIBUTE_UNUSED,
int errnum ATTRIBUTE_UNUSED)
{
if (at_fail_alloc_p ())
{
set_fail_at_alloc (0);
return;
}
callback_errors++;
}
static int
callback_full (void *vdata ATTRIBUTE_UNUSED, uintptr_t pc ATTRIBUTE_UNUSED,
const char *filename ATTRIBUTE_UNUSED,
int lineno ATTRIBUTE_UNUSED,
const char *function ATTRIBUTE_UNUSED)
{
return 0;
}
static int
test1 (void)
{
return f2 (__LINE__) + 1;
}
static int
f2 (int f1line)
{
return f3 (f1line, __LINE__) + 2;
}
static int
f3 (int f1line ATTRIBUTE_UNUSED, int f2line ATTRIBUTE_UNUSED)
{
int i;
i = backtrace_full (state, 0, callback_full, error_callback_full, NULL);
if (i != 0)
{
fprintf (stderr, "test1: unexpected return value %d\n", i);
++failures;
}
if (callback_errors)
++failures;
return failures;
}
/* Run all the tests. */
int
main (int argc, char **argv)
{
uint64_t fail_at = 0;
if (argc == 2)
{
fail_at = atoi (argv[1]);
set_fail_at_alloc (fail_at);
}
state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
error_callback_full, NULL);
if (state == NULL)
exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
#if BACKTRACE_SUPPORTED
test1 ();
#endif
if (argc == 1)
fprintf (stderr, "%llu\n", (long long unsigned) get_nr_allocs ());
exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
}

104
allocfail.sh

@ -0,0 +1,104 @@
#!/bin/sh
# allocfail.sh -- Test for libbacktrace library.
# Copyright (C) 2018-2019 Free Software Foundation, Inc.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# (1) Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# (2) Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# (3) The name of the author may not be used to
# endorse or promote products derived from this software without
# specific prior written permission.
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
set -e
if [ ! -f ./allocfail ]; then
# Hard failure.
exit 99
fi
allocs=$(./allocfail 2>&1)
if [ "$allocs" = "" ]; then
# Hard failure.
exit 99
fi
# This generates the following output:
# ...
# $ allocfail.sh
# allocs: 80495
# Status changed to 0 at 1
# Status changed to 1 at 3
# Status changed to 0 at 11
# Status changed to 1 at 12
# Status changed to 0 at 845
# ...
#
# We have status 0 for an allocation failure at:
# - 1 because backtrace_create_state handles failure robustly
# - 2 because the fail switches backtrace_full to !can_alloc mode.
# - 11 because failure of elf_open_debugfile_by_buildid does not generate an
# error callback beyond the one for the allocation failure itself.
echo "allocs: $allocs"
step=1
i=1
passes=0
prev_status=-1
while [ $i -le $allocs ]; do
if ./allocfail $i >/dev/null 2>&1; status=$?; then
true
fi
if [ $status -gt 1 ]; then
echo "Unallowed fail found: $i"
# Failure.
exit 1
fi
# The test-case would run too long if we would excercise all allocs.
# So, run with step 1 initially, and increase the step once we have 10
# subsequent passes, and drop back to step 1 once we encounter another
# failure. This takes ~2.6 seconds on an i7-6600U CPU @ 2.60GHz.
if [ $status -eq 0 ]; then
passes=$(($passes + 1))
if [ $passes -ge 10 ]; then
step=$((step * 10))
passes=0
fi
elif [ $status -eq 1 ]; then
passes=0
step=1
fi
if [ $status -ne $prev_status ]; then
echo "Status changed to $status at $i"
fi
prev_status=$status
i=$(($i + $step))
done
# Success.
exit 0

2
atomic.c

@ -1,5 +1,5 @@
/* atomic.c -- Support for atomic functions if not present.
Copyright (C) 2013-2018 Free Software Foundation, Inc.
Copyright (C) 2013-2019 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without

2
backtrace-supported.h.in

@ -1,5 +1,5 @@
/* backtrace-supported.h.in -- Whether stack backtrace is supported.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without

4
backtrace.c

@ -1,5 +1,5 @@
/* backtrace.c -- Entry point for stack backtrace library.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without
@ -98,7 +98,7 @@ unwind (struct _Unwind_Context *context, void *vdata)
/* Get a stack backtrace. */
int
int __attribute__((noinline))
backtrace_full (struct backtrace_state *state, int skip,
backtrace_full_callback callback,
backtrace_error_callback error_callback, void *data)

10
backtrace.h

@ -1,5 +1,5 @@
/* backtrace.h -- Public header file for stack backtrace library.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without
@ -75,7 +75,13 @@ typedef void (*backtrace_error_callback) (void *data, const char *msg,
use appropriate atomic operations. If THREADED is zero the state
may only be accessed by one thread at a time. This returns a state
pointer on success, NULL on error. If an error occurs, this will
call the ERROR_CALLBACK routine. */
call the ERROR_CALLBACK routine.
Calling this function allocates resources that cannot be freed.
There is no backtrace_free_state function. The state is used to
cache information that is expensive to recompute. Programs are
expected to call this function at most once and to save the return
value for all later calls to backtrace functions. */
extern struct backtrace_state *backtrace_create_state (
const char *filename, int threaded,

17
btest.c

@ -1,5 +1,5 @@
/* btest.c -- Test for libbacktrace library
Copyright (C) 2012-2018 Free Software Foundation, Inc.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without
@ -48,9 +48,9 @@ POSSIBILITY OF SUCH DAMAGE. */
/* Test the backtrace function with non-inlined functions. */
static int test1 (void) __attribute__ ((noinline, unused));
static int f2 (int) __attribute__ ((noinline));
static int f3 (int, int) __attribute__ ((noinline));
static int test1 (void) __attribute__ ((noinline, noclone, unused));
static int f2 (int) __attribute__ ((noinline, noclone));
static int f3 (int, int) __attribute__ ((noinline, noclone));
static int
test1 (void)
@ -162,9 +162,9 @@ f13 (int f1line, int f2line)
/* Test the backtrace_simple function with non-inlined functions. */
static int test3 (void) __attribute__ ((noinline, unused));
static int f22 (int) __attribute__ ((noinline));
static int f23 (int, int) __attribute__ ((noinline));
static int test3 (void) __attribute__ ((noinline, noclone, unused));
static int f22 (int) __attribute__ ((noinline, noclone));
static int f23 (int, int) __attribute__ ((noinline, noclone));
static int
test3 (void)
@ -423,7 +423,8 @@ test5 (void)
fprintf (stderr, "test5: NULL syminfo name\n");
symdata.failed = 1;
}
else if (strcmp (symdata.name, "global") != 0)
else if (!(strncmp (symdata.name, "global", 6) == 0
&& (symdata.name[6] == '\0'|| symdata.name[6] == '.')))
{
fprintf (stderr,
"test5: unexpected syminfo name got %s expected %s\n",

348
compile

@ -0,0 +1,348 @@
#! /bin/sh
# Wrapper for compilers which do not understand '-c -o'.
scriptversion=2016-01-11.22; # UTC
# Copyright (C) 1999-2017 Free Software Foundation, Inc.
# Written by Tom Tromey <tromey@cygnus.com>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
nl='
'
# We need space, tab and new line, in precisely that order. Quoting is
# there to prevent tools from complaining about whitespace usage.
IFS=" "" $nl"
file_conv=
# func_file_conv build_file lazy
# Convert a $build file to $host form and store it in $file
# Currently only supports Windows hosts. If the determined conversion
# type is listed in (the comma separated) LAZY, no conversion will
# take place.
func_file_conv ()
{
file=$1
case $file in
/ | /[!/]*) # absolute file, and not a UNC file
if test -z "$file_conv"; then
# lazily determine how to convert abs files
case `uname -s` in
MINGW*)
file_conv=mingw
;;
CYGWIN*)
file_conv=cygwin
;;
*)
file_conv=wine
;;
esac
fi
case $file_conv/,$2, in
*,$file_conv,*)
;;
mingw/*)
file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
;;
cygwin/*)
file=`cygpath -m "$file" || echo "$file"`
;;
wine/*)
file=`winepath -w "$file" || echo "$file"`
;;
esac
;;
esac
}
# func_cl_dashL linkdir
# Make cl look for libraries in LINKDIR
func_cl_dashL ()
{
func_file_conv "$1"
if test -z "$lib_path"; then
lib_path=$file
else
lib_path="$lib_path;$file"
fi
linker_opts="$linker_opts -LIBPATH:$file"
}
# func_cl_dashl library
# Do a library search-path lookup for cl
func_cl_dashl ()
{
lib=$1
found=no
save_IFS=$IFS
IFS=';'
for dir in $lib_path $LIB
do
IFS=$save_IFS
if $shared && test -f "$dir/$lib.dll.lib"; then
found=yes
lib=$dir/$lib.dll.lib
break
fi
if test -f "$dir/$lib.lib"; then
found=yes
lib=$dir/$lib.lib
break
fi
if test -f "$dir/lib$lib.a"; then
found=yes
lib=$dir/lib$lib.a
break
fi
done
IFS=$save_IFS
if test "$found" != yes; then
lib=$lib.lib
fi
}
# func_cl_wrapper cl arg...
# Adjust compile command to suit cl
func_cl_wrapper ()
{
# Assume a capable shell
lib_path=
shared=:
linker_opts=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
eat=1
case $2 in
*.o | *.[oO][bB][jJ])
func_file_conv "$2"
set x "$@" -Fo"$file"
shift
;;
*)
func_file_conv "$2"
set x "$@" -Fe"$file"
shift
;;
esac
;;
-I)
eat=1
func_file_conv "$2" mingw
set x "$@" -I"$file"
shift
;;
-I*)
func_file_conv "${1#-I}" mingw
set x "$@" -I"$file"
shift
;;
-l)
eat=1
func_cl_dashl "$2"
set x "$@" "$lib"
shift
;;
-l*)
func_cl_dashl "${1#-l}"
set x "$@" "$lib"
shift
;;
-L)
eat=1
func_cl_dashL "$2"
;;
-L*)
func_cl_dashL "${1#-L}"
;;
-static)
shared=false
;;
-Wl,*)
arg=${1#-Wl,}
save_ifs="$IFS"; IFS=','
for flag in $arg; do
IFS="$save_ifs"
linker_opts="$linker_opts $flag"
done
IFS="$save_ifs"
;;
-Xlinker)
eat=1
linker_opts="$linker_opts $2"
;;
-*)
set x "$@" "$1"
shift
;;
*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
func_file_conv "$1"
set x "$@" -Tp"$file"
shift
;;
*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
func_file_conv "$1" mingw
set x "$@" "$file"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -n "$linker_opts"; then
linker_opts="-link$linker_opts"
fi
exec "$@" $linker_opts
exit 1
}
eat=
case $1 in
'')
echo "$0: No command. Try '$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: compile [--help] [--version] PROGRAM [ARGS]
Wrapper for compilers which do not understand '-c -o'.
Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
arguments, and rename the output as expected.
If you are trying to build a whole package this is not the
right script to run: please start by reading the file 'INSTALL'.
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "compile $scriptversion"
exit $?
;;
cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
func_cl_wrapper "$@" # Doesn't return...
;;
esac
ofile=
cfile=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
# So we strip '-o arg' only if arg is an object.
eat=1
case $2 in
*.o | *.obj)
ofile=$2
;;
*)
set x "$@" -o "$2"
shift
;;
esac
;;
*.c)
cfile=$1
set x "$@" "$1"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -z "$ofile" || test -z "$cfile"; then
# If no '-o' option was seen then we might have been invoked from a
# pattern rule where we don't need one. That is ok -- this is a
# normal compilation that the losing compiler can handle. If no
# '.c' file was seen then we are probably linking. That is also
# ok.
exec "$@"
fi
# Name of file we expect compiler to create.
cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
# Create the lock directory.
# Note: use '[/\\:.-]' here to ensure that we don't use the same name
# that we are using for the .o file. Also, base the name on the expected
# object file name, since that is what matters with a parallel build.
lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
while true; do
if mkdir "$lockdir" >/dev/null 2>&1; then
break
fi
sleep 1
done
# FIXME: race condition here if user kills between mkdir and trap.
trap "rmdir '$lockdir'; exit 1" 1 2 15
# Run the compile.
"$@"
ret=$?
if test -f "$cofile"; then
test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
elif test -f "${cofile}bj"; then
test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
fi
rmdir "$lockdir"
exit $ret
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:

8
config.h.in

@ -34,9 +34,6 @@
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if you have the `z' library (-lz). */
#undef HAVE_LIBZ
/* Define to 1 if you have the <link.h> header file. */
#undef HAVE_LINK_H
@ -132,6 +129,11 @@
#endif
/* Enable large inode numbers on Mac OS X 10.5. */
#ifndef _DARWIN_USE_64_BIT_INODE
# define _DARWIN_USE_64_BIT_INODE 1
#endif
/* Number of bits in a file offset, on hosts where this is settable. */
#undef _FILE_OFFSET_BITS

38
config/enable.m4

@ -0,0 +1,38 @@
dnl ----------------------------------------------------------------------
dnl This whole bit snagged from libstdc++-v3.
dnl
dnl GCC_ENABLE
dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING)
dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, permit a|b|c)
dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, SHELL-CODE-HANDLER)
dnl
dnl See docs/html/17_intro/configury.html#enable for documentation.
dnl
AC_DEFUN([GCC_ENABLE],[dnl
m4_define([_g_switch],[--enable-$1])dnl
m4_define([_g_help],[AC_HELP_STRING(_g_switch$3,[$4 @<:@default=$2@:>@])])dnl
AC_ARG_ENABLE($1,_g_help,
m4_bmatch([$5],
[^permit ],
[[
case "$enableval" in
m4_bpatsubst([$5],[permit ])) ;;
*) AC_MSG_ERROR(Unknown argument to enable/disable $1) ;;
dnl Idea for future: generate a URL pointing to
dnl "onlinedocs/configopts.html#whatever"
esac
]],
[^$],
[[
case "$enableval" in
yes|no) ;;
*) AC_MSG_ERROR(Argument to enable/disable $1 must be yes or no) ;;
esac
]],
[[$5]]),
[enable_]m4_bpatsubst([$1],-,_)[=][$2])
m4_undefine([_g_switch])dnl
m4_undefine([_g_help])dnl
])

31
config/lead-dot.m4

@ -0,0 +1,31 @@
# -*- Autoconf -*-
# Copyright (C) 2003, 2009 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# serial 1
# Check whether the underlying file-system supports filenames
# with a leading dot. For instance MS-DOS doesn't.
AC_DEFUN([AM_SET_LEADING_DOT],
[rm -rf .tst 2>/dev/null
mkdir .tst 2>/dev/null
if test -d .tst; then
am__leading_dot=.
else
am__leading_dot=_
fi
rmdir .tst 2>/dev/null
AC_SUBST([am__leading_dot])])

1157
config/libtool.m4
File diff suppressed because it is too large
View File

11
config/ltoptions.m4

@ -1,6 +1,7 @@
# Helper functions for option handling. -*- Autoconf -*-
#
# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
# Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation,
# Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
@ -125,7 +126,7 @@ LT_OPTION_DEFINE([LT_INIT], [win32-dll],
[enable_win32_dll=yes
case $host in
*-*-cygwin* | *-*-mingw* | *-*-pw32*)
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
AC_CHECK_TOOL(AS, as, false)
AC_CHECK_TOOL(DLLTOOL, dlltool, false)
AC_CHECK_TOOL(OBJDUMP, objdump, false)
@ -133,13 +134,13 @@ case $host in
esac
test -z "$AS" && AS=as
_LT_DECL([], [AS], [0], [Assembler program])dnl
_LT_DECL([], [AS], [1], [Assembler program])dnl
test -z "$DLLTOOL" && DLLTOOL=dlltool
_LT_DECL([], [DLLTOOL], [0], [DLL creation program])dnl
_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
test -z "$OBJDUMP" && OBJDUMP=objdump
_LT_DECL([], [OBJDUMP], [0], [Object dumper program])dnl
_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
])# win32-dll
AU_DEFUN([AC_LIBTOOL_WIN32_DLL],

20
config/ltsugar.m4

@ -1,13 +1,13 @@
# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
#
# Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
# Written by Gary V. Vaughan, 2004
# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 5 ltsugar.m4
# serial 6 ltsugar.m4
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
@ -63,14 +63,14 @@ m4_define([lt_append],
# Produce a SEP delimited list of all paired combinations of elements of
# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
# has the form PREFIXmINFIXSUFFIXn.
# Needed until we can rely on m4_combine added in Autoconf 2.62.
m4_define([lt_combine],
[m4_if([$2], [], [],
[m4_if([$4], [], [],
[lt_join(m4_quote(m4_default([$1], [[, ]])),
lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_prefix, [$2],
[m4_foreach(_Lt_suffix, lt_car([m4_shiftn(3, $@)]),
[_Lt_prefix[]$3[]_Lt_suffix ])])))))])])dnl
])
[m4_if(m4_eval([$# > 3]), [1],
[m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
[[m4_foreach([_Lt_prefix], [$2],
[m4_foreach([_Lt_suffix],
]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])

10
config/ltversion.m4

@ -9,15 +9,15 @@
# Generated from ltversion.in.
# serial 2976 ltversion.m4
# serial 3134 ltversion.m4
# This file is part of GNU Libtool
m4_define([LT_PACKAGE_VERSION], [2.2.4])
m4_define([LT_PACKAGE_REVISION], [1.2976])
m4_define([LT_PACKAGE_VERSION], [2.2.7a])
m4_define([LT_PACKAGE_REVISION], [1.3134])
AC_DEFUN([LTVERSION_VERSION],
[macro_version='2.2.4'
macro_revision='1.2976'
[macro_version='2.2.7a'
macro_revision='1.3134'
_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
_LT_DECL(, macro_revision, 0)
])

10
config/lt~obsolete.m4

@ -1,6 +1,6 @@
# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*-
#
# Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
# Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
# Written by Scott James Remnant, 2004.
#
# This file is free software; the Free Software Foundation gives
@ -77,7 +77,6 @@ m4_ifndef([AC_DISABLE_FAST_INSTALL], [AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
m4_ifndef([_LT_AC_LANG_CXX], [AC_DEFUN([_LT_AC_LANG_CXX])])
m4_ifndef([_LT_AC_LANG_F77], [AC_DEFUN([_LT_AC_LANG_F77])])
m4_ifndef([_LT_AC_LANG_GCJ], [AC_DEFUN([_LT_AC_LANG_GCJ])])
m4_ifndef([AC_LIBTOOL_RC], [AC_DEFUN([AC_LIBTOOL_RC])])
m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
m4_ifndef([_LT_AC_LANG_C_CONFIG], [AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
@ -90,3 +89,10 @@ m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])])
m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS], [AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
m4_ifndef([_LT_AC_PROG_CXXCPP], [AC_DEFUN([_LT_AC_PROG_CXXCPP])])
m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS], [AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
m4_ifndef([_LT_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
m4_ifndef([_LT_PROG_F77], [AC_DEFUN([_LT_PROG_F77])])
m4_ifndef([_LT_PROG_FC], [AC_DEFUN([_LT_PROG_FC])])
m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])])

68
config/multi.m4

@ -0,0 +1,68 @@
## -*- Autoconf -*-
# Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2008
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# serial 6
# AM_ENABLE_MULTILIB([MAKEFILE], [REL-TO-TOP-SRCDIR])
# ---------------------------------------------------
# Add --enable-multilib to configure.
AC_DEFUN([AM_ENABLE_MULTILIB],
[# Default to --enable-multilib
AC_ARG_ENABLE(multilib,
[ --enable-multilib build many library versions (default)],
[case "$enableval" in
yes) multilib=yes ;;
no) multilib=no ;;
*) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
esac],
[multilib=yes])
# We may get other options which we leave undocumented:
# --with-target-subdir, --with-multisrctop, --with-multisubdir
# See config-ml.in if you want the gory details.
if test "$srcdir" = "."; then
if test "$with_target_subdir" != "."; then
multi_basedir="$srcdir/$with_multisrctop../$2"
else
multi_basedir="$srcdir/$with_multisrctop$2"
fi
else
multi_basedir="$srcdir/$2"
fi
AC_SUBST(multi_basedir)
# Even if the default multilib is not a cross compilation,
# it may be that some of the other multilibs are.
if test $cross_compiling = no && test $multilib = yes \
&& test "x${with_multisubdir}" != x ; then
cross_compiling=maybe
fi
AC_OUTPUT_COMMANDS([
# Only add multilib support code if we just rebuilt the top-level
# Makefile.
case " $CONFIG_FILES " in
*" ]m4_default([$1],Makefile)[ "*)
ac_file=]m4_default([$1],Makefile)[ . ${multi_basedir}/config-ml.in
;;
esac],
[
srcdir="$srcdir"
host="$host"
target="$target"
with_multisubdir="$with_multisubdir"
with_multisrctop="$with_multisrctop"
with_target_subdir="$with_target_subdir"
ac_configure_args="${multilib_arg} ${ac_configure_args}"
multi_basedir="$multi_basedir"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
CC="$CC"
CXX="$CXX"
GFORTRAN="$GFORTRAN"
GDC="$GDC"])])dnl

116
config/override.m4

@ -0,0 +1,116 @@
dnl Fix Autoconf bugs by overriding broken internal Autoconf
dnl macros with backports of fixes from newer releases.
dnl
dnl The override bits of this file should be a no-op for the newest
dnl Autoconf version, which means they can be removed once the complete
dnl tree has moved to a new enough Autoconf version.
dnl
dnl The _GCC_AUTOCONF_VERSION_TEST ensures that exactly the desired
dnl Autoconf version is used. It should be kept for consistency.
dnl Use ifdef/ifelse over m4_ifdef/m4_ifelse to be clean for 2.13.
ifdef([m4_PACKAGE_VERSION], [
dnl Provide m4_copy_force and m4_rename_force for old Autoconf versions.
m4_ifndef([m4_copy_force],
[m4_define([m4_copy_force],
[m4_ifdef([$2], [m4_undefine([$2])])m4_copy($@)])])
m4_ifndef([m4_rename_force],
[m4_define([m4_rename_force],
[m4_ifdef([$2], [m4_undefine([$2])])m4_rename($@)])])
dnl AC_DEFUN a commonly used macro so this file is picked up.
m4_copy([AC_PREREQ], [_AC_PREREQ])
AC_DEFUN([AC_PREREQ], [frob])
m4_copy_force([_AC_PREREQ], [AC_PREREQ])
dnl Ensure exactly this Autoconf version is used
m4_ifndef([_GCC_AUTOCONF_VERSION],
[m4_define([_GCC_AUTOCONF_VERSION], [2.69])])
dnl Test for the exact version when AC_INIT is expanded.
dnl This allows to update the tree in steps (for testing)
dnl by putting
dnl m4_define([_GCC_AUTOCONF_VERSION], [X.Y])
dnl in configure.ac before AC_INIT,
dnl without rewriting this file.
dnl Or for updating the whole tree at once with the definition above.
AC_DEFUN([_GCC_AUTOCONF_VERSION_CHECK],
[m4_if(m4_defn([_GCC_AUTOCONF_VERSION]),
m4_defn([m4_PACKAGE_VERSION]), [],
[m4_fatal([Please use exactly Autoconf ]_GCC_AUTOCONF_VERSION[ instead of ]m4_defn([m4_PACKAGE_VERSION])[.])])
])
m4_define([AC_INIT], m4_defn([AC_INIT])[
_GCC_AUTOCONF_VERSION_CHECK
])
dnl Ensure we do not use a buggy M4.
m4_if(m4_index([..wi.d.], [.d.]), [-1],
[m4_fatal(m4_do([m4 with buggy strstr detected. Please install
GNU M4 1.4.16 or newer and set the M4 environment variable]))])
dnl Fix 2.64 cross compile detection for AVR and RTEMS
dnl by not trying to compile fopen.
m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64],
[m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77],
[m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])])
m4_version_prereq([2.66],, [
dnl We need AC_CHECK_DECL which works for overloaded C++ functions.
# _AC_CHECK_DECL_BODY
# -------------------
# Shell function body for AC_CHECK_DECL.
m4_define([_AC_CHECK_DECL_BODY],
[ AS_LINENO_PUSH([$[]1])
[as_decl_name=`echo $][2|sed 's/ *(.*//'`]
[as_decl_use=`echo $][2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`]
AC_CACHE_CHECK([whether $as_decl_name is declared], [$[]3],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]4],
[@%:@ifndef $[]as_decl_name
@%:@ifdef __cplusplus
(void) $[]as_decl_use;
@%:@else
(void) $[]as_decl_name;
@%:@endif
@%:@endif
])],
[AS_VAR_SET([$[]3], [yes])],
[AS_VAR_SET([$[]3], [no])])])
AS_LINENO_POP
])# _AC_CHECK_DECL_BODY
# _AC_CHECK_DECLS(SYMBOL, ACTION-IF_FOUND, ACTION-IF-NOT-FOUND,
# INCLUDES)
# -------------------------------------------------------------
# Helper to AC_CHECK_DECLS, which generates the check for a single
# SYMBOL with INCLUDES, performs the AC_DEFINE, then expands
# ACTION-IF-FOUND or ACTION-IF-NOT-FOUND.
m4_define([_AC_CHECK_DECLS],
[AC_CHECK_DECL([$1], [ac_have_decl=1], [ac_have_decl=0], [$4])]dnl
[AC_DEFINE_UNQUOTED(AS_TR_CPP(m4_bpatsubst(HAVE_DECL_[$1],[ *(.*])),
[$ac_have_decl],
[Define to 1 if you have the declaration of `$1',
and to 0 if you don't.])]dnl
[m4_ifvaln([$2$3], [AS_IF([test $ac_have_decl = 1], [$2], [$3])])])
])
dnl If flex/lex are not found, the top level configure sets LEX to
dnl "/path_to/missing flex". When AC_PROG_LEX tries to find the flex
dnl output file, it calls $LEX to do so, but the current lightweight
dnl "missing" won't create a file. This results in an error.
dnl Avoid calling the bulk of AC_PROG_LEX when $LEX is "missing".
AC_DEFUN_ONCE([AC_PROG_LEX],
[AC_CHECK_PROGS(LEX, flex lex, :)
case "$LEX" in
:|*"missing "*) ;;
*) _AC_PROG_LEX_YYTEXT_DECL ;;
esac])
])

35
acinclude.m4 → config/unwind_ipinfo.m4

@ -35,38 +35,3 @@ AC_DEFUN([GCC_CHECK_UNWIND_GETIPINFO], [
AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.])
fi
])
# ACX_PROG_CC_WARNING_OPTS(WARNINGS, [VARIABLE = WARN_CFLAGS])
# Sets @VARIABLE@ to the subset of the given options which the
# compiler accepts.
AC_DEFUN([ACX_PROG_CC_WARNING_OPTS],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_LANG_PUSH(C)
m4_pushdef([acx_Var], [m4_default([$2], [WARN_CFLAGS])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
],m4_quote(acx_Var=))dnl
save_CFLAGS="$CFLAGS"
for real_option in $1; do
# Do the check with the no- prefix removed since gcc silently
# accepts any -Wno-* option on purpose
case $real_option in
-Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
*) option=$real_option ;;
esac
AS_VAR_PUSHDEF([acx_Woption], [acx_cv_prog_cc_warning_$option])
AC_CACHE_CHECK([whether $CC supports $option], acx_Woption,
[CFLAGS="$option"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],
[AS_VAR_SET(acx_Woption, yes)],
[AS_VAR_SET(acx_Woption, no)])
])
AS_IF([test AS_VAR_GET(acx_Woption) = yes],
[acx_Var="$acx_Var${acx_Var:+ }$real_option"])
AS_VAR_POPDEF([acx_Woption])dnl
done
CFLAGS="$save_CFLAGS"
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNING_OPTS

227
config/warnings.m4

@ -0,0 +1,227 @@
# Autoconf include file defining macros related to compile-time warnings.
# Copyright 2004, 2005, 2007, 2009, 2011 Free Software Foundation, Inc.
#This file is part of GCC.
#GCC is free software; you can redistribute it and/or modify it under
#the terms of the GNU General Public License as published by the Free
#Software Foundation; either version 3, or (at your option) any later
#version.
#GCC is distributed in the hope that it will be useful, but WITHOUT
#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
#for more details.
#You should have received a copy of the GNU General Public License
#along with GCC; see the file COPYING3. If not see
#<http://www.gnu.org/licenses/>.
# ACX_PROG_CC_WARNING_OPTS(WARNINGS, [VARIABLE = WARN_CFLAGS])
# Sets @VARIABLE@ to the subset of the given options which the
# compiler accepts.
AC_DEFUN([ACX_PROG_CC_WARNING_OPTS],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_LANG_PUSH(C)
m4_pushdef([acx_Var], [m4_default([$2], [WARN_CFLAGS])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
],m4_quote(acx_Var=))dnl
save_CFLAGS="$CFLAGS"
for real_option in $1; do
# Do the check with the no- prefix removed since gcc silently
# accepts any -Wno-* option on purpose
case $real_option in
-Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;;
*) option=$real_option ;;
esac
AS_VAR_PUSHDEF([acx_Woption], [acx_cv_prog_cc_warning_$option])
AC_CACHE_CHECK([whether $CC supports $option], acx_Woption,
[CFLAGS="$option"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],
[AS_VAR_SET(acx_Woption, yes)],
[AS_VAR_SET(acx_Woption, no)])
])
AS_IF([test AS_VAR_GET(acx_Woption) = yes],
[acx_Var="$acx_Var${acx_Var:+ }$real_option"])
AS_VAR_POPDEF([acx_Woption])dnl
done
CFLAGS="$save_CFLAGS"
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNING_OPTS
# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(WARNINGS, [VARIABLE = WARN_PEDANTIC])
# Append to VARIABLE "-pedantic" + the argument, if the compiler is GCC
# and accepts all of those options simultaneously, otherwise to nothing.
AC_DEFUN([ACX_PROG_CC_WARNING_ALMOST_PEDANTIC],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_LANG_PUSH(C)
m4_pushdef([acx_Var], [m4_default([$2], [WARN_PEDANTIC])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
],m4_quote(acx_Var=))dnl
# Do the check with the no- prefix removed from the warning options
# since gcc silently accepts any -Wno-* option on purpose
m4_pushdef([acx_Woptions], [m4_bpatsubst([$1], [-Wno-], [-W])])dnl
AS_VAR_PUSHDEF([acx_Pedantic], [acx_cv_prog_cc_pedantic_]acx_Woptions)dnl
AS_IF([test "$GCC" = yes],
[AC_CACHE_CHECK([whether $CC supports -pedantic ]acx_Woptions, acx_Pedantic,
[save_CFLAGS="$CFLAGS"
CFLAGS="-pedantic acx_Woptions"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],
[AS_VAR_SET(acx_Pedantic, yes)],
[AS_VAR_SET(acx_Pedantic, no)])
CFLAGS="$save_CFLAGS"])
AS_IF([test AS_VAR_GET(acx_Pedantic) = yes],
[acx_Var="$acx_Var${acx_Var:+ }-pedantic $1"])
])
AS_VAR_POPDEF([acx_Pedantic])dnl
m4_popdef([acx_Woptions])dnl
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNING_ALMOST_PEDANTIC
# ACX_PROG_CC_WARNINGS_ARE_ERRORS([x.y.z], [VARIABLE = WERROR])
# sets @VARIABLE@ to "-Werror" if the compiler is GCC >=x.y.z, or if
# --enable-werror-always was given on the command line, otherwise
# to nothing.
# If the argument is the word "manual" instead of a version number,
# then @VARIABLE@ will be set to -Werror only if --enable-werror-always
# appeared on the configure command line.
AC_DEFUN([ACX_PROG_CC_WARNINGS_ARE_ERRORS],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_LANG_PUSH(C)
m4_pushdef([acx_Var], [m4_default([$2], [WERROR])])dnl
AC_SUBST(acx_Var)dnl
m4_expand_once([acx_Var=
],m4_quote(acx_Var=))dnl
AC_ARG_ENABLE(werror-always,
AS_HELP_STRING([--enable-werror-always],
[enable -Werror despite compiler version]),
[], [enable_werror_always=no])
AS_IF([test $enable_werror_always = yes],
[acx_Var="$acx_Var${acx_Var:+ }-Werror"])
m4_if($1, [manual],,
[AS_VAR_PUSHDEF([acx_GCCvers], [acx_cv_prog_cc_gcc_$1_or_newer])dnl
AC_CACHE_CHECK([whether $CC is GCC >=$1], acx_GCCvers,
[set fnord `echo $1 | tr '.' ' '`
shift
AC_PREPROC_IFELSE(
[#if __GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__ \
< [$]1 * 10000 + [$]2 * 100 + [$]3
#error insufficient
#endif],
[AS_VAR_SET(acx_GCCvers, yes)],
[AS_VAR_SET(acx_GCCvers, no)])])
AS_IF([test AS_VAR_GET(acx_GCCvers) = yes],
[acx_Var="$acx_Var${acx_Var:+ }-Werror"])
AS_VAR_POPDEF([acx_GCCvers])])
m4_popdef([acx_Var])dnl
AC_LANG_POP(C)
])# ACX_PROG_CC_WARNINGS_ARE_ERRORS
# ACX_PROG_CXX_WARNING_OPTS(WARNINGS, [VARIABLE = WARN_CXXFLAGS])
# Se