mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
5df4cba632
This is mostly to get this commit from gnulib:
e22cd2677a4b7beacbf30b93bb0559f7b89f96ce
Add ‘extern "C"’ to count-one-bits.h etc.
... which fixes this compilation problem I observed with clang++:
CXXLD gdb
arch/arm-get-next-pcs.o:arm-get-next-pcs.c:function thumb_get_next_pcs_raw(arm_get_next_pcs*): error: undefined reference to 'count_one_bits(unsigned int)'
<more such undefined references>
I built-tested on GNU/Linux x86-64 (gcc-9 and clang-9) as well as with the
x86_64-w64-mingw32-gcc cross-compiler.
gnulib/ChangeLog:
* update-gnulib.sh (GNULIB_COMMIT_SHA1): Bump to
e22cd2677a4b7beacbf30b93bb0559f7b89f96ce.
* Makefile.in, config.in, configure, import/*: Re-generate.
105 lines
3.3 KiB
Plaintext
105 lines
3.3 KiB
Plaintext
# malloc.m4 serial 20
|
|
dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc.
|
|
dnl This file is free software; the Free Software Foundation
|
|
dnl gives unlimited permission to copy and/or distribute it,
|
|
dnl with or without modifications, as long as this notice is preserved.
|
|
|
|
# This is adapted with modifications from upstream Autoconf here:
|
|
# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c
|
|
AC_DEFUN([_AC_FUNC_MALLOC_IF],
|
|
[
|
|
AC_REQUIRE([AC_HEADER_STDC])dnl
|
|
AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
|
|
AC_CHECK_HEADERS([stdlib.h])
|
|
AC_CACHE_CHECK([for GNU libc compatible malloc],
|
|
[ac_cv_func_malloc_0_nonnull],
|
|
[AC_RUN_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[#if defined STDC_HEADERS || defined HAVE_STDLIB_H
|
|
# include <stdlib.h>
|
|
#else
|
|
char *malloc ();
|
|
#endif
|
|
]],
|
|
[[char *p = malloc (0);
|
|
int result = !p;
|
|
free (p);
|
|
return result;]])
|
|
],
|
|
[ac_cv_func_malloc_0_nonnull=yes],
|
|
[ac_cv_func_malloc_0_nonnull=no],
|
|
[case "$host_os" in
|
|
# Guess yes on platforms where we know the result.
|
|
*-gnu* | gnu* | *-musl* | freebsd* | netbsd* | openbsd* \
|
|
| hpux* | solaris* | cygwin* | mingw*)
|
|
ac_cv_func_malloc_0_nonnull="guessing yes" ;;
|
|
# If we don't know, obey --enable-cross-guesses.
|
|
*) ac_cv_func_malloc_0_nonnull="$gl_cross_guess_normal" ;;
|
|
esac
|
|
])
|
|
])
|
|
case "$ac_cv_func_malloc_0_nonnull" in
|
|
*yes)
|
|
$1
|
|
;;
|
|
*)
|
|
$2
|
|
;;
|
|
esac
|
|
])# _AC_FUNC_MALLOC_IF
|
|
|
|
# gl_FUNC_MALLOC_GNU
|
|
# ------------------
|
|
# Test whether 'malloc (0)' is handled like in GNU libc, and replace malloc if
|
|
# it is not.
|
|
AC_DEFUN([gl_FUNC_MALLOC_GNU],
|
|
[
|
|
AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
|
|
dnl _AC_FUNC_MALLOC_IF is defined in Autoconf.
|
|
_AC_FUNC_MALLOC_IF(
|
|
[AC_DEFINE([HAVE_MALLOC_GNU], [1],
|
|
[Define to 1 if your system has a GNU libc compatible 'malloc'
|
|
function, and to 0 otherwise.])],
|
|
[AC_DEFINE([HAVE_MALLOC_GNU], [0])
|
|
REPLACE_MALLOC=1
|
|
])
|
|
])
|
|
|
|
# gl_FUNC_MALLOC_POSIX
|
|
# --------------------
|
|
# Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it
|
|
# fails), and replace malloc if it is not.
|
|
AC_DEFUN([gl_FUNC_MALLOC_POSIX],
|
|
[
|
|
AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
|
|
AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
|
|
if test $gl_cv_func_malloc_posix = yes; then
|
|
AC_DEFINE([HAVE_MALLOC_POSIX], [1],
|
|
[Define if the 'malloc' function is POSIX compliant.])
|
|
else
|
|
REPLACE_MALLOC=1
|
|
fi
|
|
])
|
|
|
|
# Test whether malloc, realloc, calloc are POSIX compliant,
|
|
# Set gl_cv_func_malloc_posix to yes or no accordingly.
|
|
AC_DEFUN([gl_CHECK_MALLOC_POSIX],
|
|
[
|
|
AC_CACHE_CHECK([whether malloc, realloc, calloc are POSIX compliant],
|
|
[gl_cv_func_malloc_posix],
|
|
[
|
|
dnl It is too dangerous to try to allocate a large amount of memory:
|
|
dnl some systems go to their knees when you do that. So assume that
|
|
dnl all Unix implementations of the function are POSIX compliant.
|
|
AC_COMPILE_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[]],
|
|
[[#if defined _WIN32 && ! defined __CYGWIN__
|
|
choke me
|
|
#endif
|
|
]])],
|
|
[gl_cv_func_malloc_posix=yes],
|
|
[gl_cv_func_malloc_posix=no])
|
|
])
|
|
])
|