Browse Source
libbacktrace: update to current version from GCC trunk
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
62 changed files with 17863 additions and 3829 deletions
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287Makefile.am
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1709Makefile.in
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735aclocal.m4
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15alloc.c
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136allocfail.c
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104allocfail.sh
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2atomic.c
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2backtrace-supported.h.in
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4backtrace.c
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10backtrace.h
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17btest.c
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348compile
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8config.h.in
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38config/enable.m4
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31config/lead-dot.m4
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1157config/libtool.m4
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11config/ltoptions.m4
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20config/ltsugar.m4
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10config/ltversion.m4
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10config/lt~obsolete.m4
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68config/multi.m4
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116config/override.m4
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35config/unwind_ipinfo.m4
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227config/warnings.m4
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3065configure
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38configure.ac
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2230dwarf.c
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5edtest.c
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2edtest2.c
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235elf.c
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2fileline.c
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3filenames.h
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3filetype.awk
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65install-debuginfo-for-buildid.sh.in
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114instrumented_alloc.c
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60internal.h
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7444libtool.m4
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1810ltmain.sh
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369ltoptions.m4
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123ltsugar.m4
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23ltversion.m4
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98lt~obsolete.m4
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4mmap.c
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10mmapio.c
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2nounwind.c
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56pecoff.c
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2posix.c
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4print.c
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10read.c
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4simple.c
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2sort.c
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2state.c
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2stest.c
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148test-driver
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55test_format.c
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2testlib.c
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2testlib.h
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2ttest.c
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92unittest.c
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2unknown.c
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500xcoff.c
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2ztest.c
1709
Makefile.in
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735
aclocal.m4
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@ -0,0 +1,136 @@ |
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/* allocfail.c -- Test for libbacktrace library |
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Copyright (C) 2018-2019 Free Software Foundation, Inc. |
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|
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are |
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met: |
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|
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(1) Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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|
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(2) Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in |
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the documentation and/or other materials provided with the |
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distribution. |
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|
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(3) The name of the author may not be used to |
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endorse or promote products derived from this software without |
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specific prior written permission. |
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|
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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POSSIBILITY OF SUCH DAMAGE. */ |
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|
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#include <assert.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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|
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#include "filenames.h" |
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|
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#include "backtrace.h" |
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#include "backtrace-supported.h" |
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|
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#include "testlib.h" |
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|
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extern uint64_t get_nr_allocs (void); |
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extern void set_fail_at_alloc (uint64_t); |
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extern int at_fail_alloc_p (void); |
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|
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static int test1 (void) __attribute__ ((noinline, unused)); |
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static int f2 (int) __attribute__ ((noinline)); |
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static int f3 (int, int) __attribute__ ((noinline)); |
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|
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static unsigned callback_errors = 0; |
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|
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static void |
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error_callback_full (void *vdata ATTRIBUTE_UNUSED, |
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const char *msg ATTRIBUTE_UNUSED, |
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int errnum ATTRIBUTE_UNUSED) |
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{ |
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if (at_fail_alloc_p ()) |
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{ |
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set_fail_at_alloc (0); |
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return; |
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} |
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|
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callback_errors++; |
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} |
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|
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static int |
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callback_full (void *vdata ATTRIBUTE_UNUSED, uintptr_t pc ATTRIBUTE_UNUSED, |
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const char *filename ATTRIBUTE_UNUSED, |
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int lineno ATTRIBUTE_UNUSED, |
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const char *function ATTRIBUTE_UNUSED) |
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{ |
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|
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return 0; |
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} |
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|
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static int |
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test1 (void) |
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{ |
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return f2 (__LINE__) + 1; |
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} |
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|
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static int |
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f2 (int f1line) |
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{ |
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return f3 (f1line, __LINE__) + 2; |
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} |
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|
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static int |
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f3 (int f1line ATTRIBUTE_UNUSED, int f2line ATTRIBUTE_UNUSED) |
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{ |
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int i; |
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|
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i = backtrace_full (state, 0, callback_full, error_callback_full, NULL); |
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|
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if (i != 0) |
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{ |
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fprintf (stderr, "test1: unexpected return value %d\n", i); |
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++failures; |
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} |
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|
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if (callback_errors) |
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++failures; |
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|
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return failures; |
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} |
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|
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/* Run all the tests. */ |
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|
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int |
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main (int argc, char **argv) |
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{ |
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uint64_t fail_at = 0; |
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|
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if (argc == 2) |
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{ |
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fail_at = atoi (argv[1]); |
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set_fail_at_alloc (fail_at); |
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} |
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|
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state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, |
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error_callback_full, NULL); |
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if (state == NULL) |
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exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); |
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|
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#if BACKTRACE_SUPPORTED |
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test1 (); |
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#endif |
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|
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if (argc == 1) |
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fprintf (stderr, "%llu\n", (long long unsigned) get_nr_allocs ()); |
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exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); |
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} |
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@ -0,0 +1,104 @@ |
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#!/bin/sh |
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|
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# allocfail.sh -- Test for libbacktrace library. |
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# Copyright (C) 2018-2019 Free Software Foundation, Inc. |
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|
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions are |
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# met: |
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|
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# (1) Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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|
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# (2) Redistributions in binary form must reproduce the above copyright |
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# notice, this list of conditions and the following disclaimer in |
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# the documentation and/or other materials provided with the |
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# distribution. |
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|
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# (3) The name of the author may not be used to |
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# endorse or promote products derived from this software without |
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# specific prior written permission. |
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|
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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# POSSIBILITY OF SUCH DAMAGE. |
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|
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set -e |
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|
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if [ ! -f ./allocfail ]; then |
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# Hard failure. |
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exit 99 |
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fi |
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|
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allocs=$(./allocfail 2>&1) |
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if [ "$allocs" = "" ]; then |
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# Hard failure. |
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exit 99 |
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fi |
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|
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# This generates the following output: |
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# ... |
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# $ allocfail.sh |
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# allocs: 80495 |
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# Status changed to 0 at 1 |
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# Status changed to 1 at 3 |
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# Status changed to 0 at 11 |
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# Status changed to 1 at 12 |
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# Status changed to 0 at 845 |
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# ... |
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# |
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# We have status 0 for an allocation failure at: |
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# - 1 because backtrace_create_state handles failure robustly |
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# - 2 because the fail switches backtrace_full to !can_alloc mode. |
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# - 11 because failure of elf_open_debugfile_by_buildid does not generate an |
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# error callback beyond the one for the allocation failure itself. |
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echo "allocs: $allocs" |
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|
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step=1 |
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i=1 |
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passes=0 |
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prev_status=-1 |
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while [ $i -le $allocs ]; do |
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if ./allocfail $i >/dev/null 2>&1; status=$?; then |
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true |
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fi |
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if [ $status -gt 1 ]; then |
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echo "Unallowed fail found: $i" |
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# Failure. |
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exit 1 |
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fi |
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|
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# The test-case would run too long if we would excercise all allocs. |
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# So, run with step 1 initially, and increase the step once we have 10 |
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# subsequent passes, and drop back to step 1 once we encounter another |
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# failure. This takes ~2.6 seconds on an i7-6600U CPU @ 2.60GHz. |
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if [ $status -eq 0 ]; then |
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passes=$(($passes + 1)) |
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if [ $passes -ge 10 ]; then |
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step=$((step * 10)) |
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passes=0 |
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fi |
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elif [ $status -eq 1 ]; then |
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passes=0 |
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step=1 |
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fi |
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|
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if [ $status -ne $prev_status ]; then |
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echo "Status changed to $status at $i" |
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fi |
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prev_status=$status |
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|
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i=$(($i + $step)) |
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done |
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|
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# Success. |
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exit 0 |
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@ -0,0 +1,348 @@ |
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#! /bin/sh |
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# Wrapper for compilers which do not understand '-c -o'. |
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|
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scriptversion=2016-01-11.22; # UTC |
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|
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# Copyright (C) 1999-2017 Free Software Foundation, Inc. |
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# Written by Tom Tromey <tromey@cygnus.com>. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2, or (at your option) |
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# any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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|
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# As a special exception to the GNU General Public License, if you |
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# distribute this file as part of a program that contains a |
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# configuration script generated by Autoconf, you may include it under |
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# the same distribution terms that you use for the rest of that program. |
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|
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# This file is maintained in Automake, please report |
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# bugs to <bug-automake@gnu.org> or send patches to |
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# <automake-patches@gnu.org>. |
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|
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nl=' |
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' |
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|
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# We need space, tab and new line, in precisely that order. Quoting is |
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# there to prevent tools from complaining about whitespace usage. |
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IFS=" "" $nl" |
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|
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file_conv= |
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|
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# func_file_conv build_file lazy |
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# Convert a $build file to $host form and store it in $file |
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# Currently only supports Windows hosts. If the determined conversion |
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# type is listed in (the comma separated) LAZY, no conversion will |
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# take place. |
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func_file_conv () |
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{ |
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file=$1 |
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case $file in |
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/ | /[!/]*) # absolute file, and not a UNC file |
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if test -z "$file_conv"; then |
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# lazily determine how to convert abs files |
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case `uname -s` in |
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MINGW*) |
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file_conv=mingw |
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;; |
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CYGWIN*) |
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file_conv=cygwin |
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;; |
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*) |
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file_conv=wine |
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;; |
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esac |
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fi |
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case $file_conv/,$2, in |
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*,$file_conv,*) |
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;; |
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mingw/*) |
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file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` |
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;; |
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cygwin/*) |
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file=`cygpath -m "$file" || echo "$file"` |
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;; |
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wine/*) |
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file=`winepath -w "$file" || echo "$file"` |
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;; |
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esac |
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;; |
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esac |
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} |
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|
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# func_cl_dashL linkdir |
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# Make cl look for libraries in LINKDIR |
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func_cl_dashL () |
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{ |
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func_file_conv "$1" |
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if test -z "$lib_path"; then |
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lib_path=$file |
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else |
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lib_path="$lib_path;$file" |
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fi |
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linker_opts="$linker_opts -LIBPATH:$file" |
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} |
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|
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# func_cl_dashl library |
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# Do a library search-path lookup for cl |
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func_cl_dashl () |
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{ |
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lib=$1 |
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found=no |
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save_IFS=$IFS |
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IFS=';' |
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for dir in $lib_path $LIB |
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do |
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IFS=$save_IFS |
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if $shared && test -f "$dir/$lib.dll.lib"; then |
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found=yes |
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lib=$dir/$lib.dll.lib |
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break |
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fi |
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if test -f "$dir/$lib.lib"; then |
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found=yes |
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lib=$dir/$lib.lib |
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break |
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fi |
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if test -f "$dir/lib$lib.a"; then |
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found=yes |
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lib=$dir/lib$lib.a |
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break |
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fi |
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done |
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IFS=$save_IFS |
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|
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if test "$found" != yes; then |
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lib=$lib.lib |
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fi |
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} |
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|
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# func_cl_wrapper cl arg... |
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# Adjust compile command to suit cl |
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func_cl_wrapper () |
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{ |
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# Assume a capable shell |
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lib_path= |
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shared=: |
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linker_opts= |
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for arg |
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do |
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if test -n "$eat"; then |
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eat= |
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else |
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case $1 in |
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-o) |
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# configure might choose to run compile as 'compile cc -o foo foo.c'. |
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eat=1 |
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case $2 in |
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*.o | *.[oO][bB][jJ]) |
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func_file_conv "$2" |
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set x "$@" -Fo"$file" |
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shift |
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;; |
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*) |
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func_file_conv "$2" |
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set x "$@" -Fe"$file" |
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shift |
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;; |
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esac |
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;; |
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-I) |
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eat=1 |
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func_file_conv "$2" mingw |
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set x "$@" -I"$file" |
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shift |
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;; |
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-I*) |
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func_file_conv "${1#-I}" mingw |
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set x "$@" -I"$file" |
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shift |
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;; |
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-l) |
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eat=1 |
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func_cl_dashl "$2" |
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set x "$@" "$lib" |
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shift |
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;; |
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-l*) |
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func_cl_dashl "${1#-l}" |
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set x "$@" "$lib" |
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shift |
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;; |
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-L) |
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eat=1 |
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func_cl_dashL "$2" |
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;; |
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-L*) |
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func_cl_dashL "${1#-L}" |
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;; |
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-static) |
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shared=false |
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;; |
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-Wl,*) |
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arg=${1#-Wl,} |
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save_ifs="$IFS"; IFS=',' |
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for flag in $arg; do |
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IFS="$save_ifs" |
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linker_opts="$linker_opts $flag" |
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done |
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IFS="$save_ifs" |
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;; |
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-Xlinker) |
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eat=1 |
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linker_opts="$linker_opts $2" |
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;; |
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-*) |
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set x "$@" "$1" |
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shift |
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;; |
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*.cc | *.CC | *.cxx | *.CXX | *.[cC]++) |
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func_file_conv "$1" |
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set x "$@" -Tp"$file" |
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shift |
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;; |
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*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO]) |
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func_file_conv "$1" mingw |
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set x "$@" "$file" |
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shift |
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;; |
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*) |
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set x "$@" "$1" |
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shift |
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;; |
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esac |
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fi |
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shift |
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done |
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if test -n "$linker_opts"; then |
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linker_opts="-link$linker_opts" |
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fi |
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exec "$@" $linker_opts |
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exit 1 |
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} |
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|
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eat= |
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|
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case $1 in |
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'') |
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echo "$0: No command. Try '$0 --help' for more information." 1>&2 |
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exit 1; |
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;; |
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-h | --h*) |
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cat <<\EOF |
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Usage: compile [--help] [--version] PROGRAM [ARGS] |
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|
|||
Wrapper for compilers which do not understand '-c -o'. |
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Remove '-o dest.o' from ARGS, run PROGRAM with the remaining |
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arguments, and rename the output as expected. |
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|
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If you are trying to build a whole package this is not the |
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right script to run: please start by reading the file 'INSTALL'. |
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|
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Report bugs to <bug-automake@gnu.org>. |
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EOF |
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exit $? |
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;; |
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-v | --v*) |
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echo "compile $scriptversion" |
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exit $? |
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;; |
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cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \ |
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icl | *[/\\]icl | icl.exe | *[/\\]icl.exe ) |
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func_cl_wrapper "$@" # Doesn't return... |
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;; |
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esac |
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|
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ofile= |
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cfile= |
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|
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for arg |
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do |
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if test -n "$eat"; then |
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eat= |
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else |
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case $1 in |
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-o) |
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# 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 |
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case $2 in |
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*.o | *.obj) |
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ofile=$2 |
|||
;; |
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*) |
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set x "$@" -o "$2" |
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shift |
|||
;; |
|||
esac |
|||
;; |
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*.c) |
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cfile=$1 |
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set x "$@" "$1" |
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shift |
|||
;; |
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*) |
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set x "$@" "$1" |
|||
shift |
|||
;; |
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esac |
|||
fi |
|||
shift |
|||
done |
|||
|
|||
if test -z "$ofile" || test -z "$cfile"; then |
|||
# If no '-o' option was seen then we might have been invoked from a |
|||
# pattern rule where we don't need one. That is ok -- this is a |
|||
# normal compilation that the losing compiler can handle. If no |
|||
# '.c' file was seen then we are probably linking. That is also |
|||
# ok. |
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exec "$@" |
|||
fi |
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|
|||
# 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: |
|||
@ -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 |
|||
]) |
|||
|
|||
@ -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
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File diff suppressed because it is too large
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@ -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 |
|||
@ -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]) |
|||
|
|||
]) |
|||
@ -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 | |||