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# Copyright (c) 2011-2012, Linaro Limited
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * 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.
# * Neither the name of the Linaro nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER 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.
AC_INIT(cortex-malloc, 0.1)
AM_INIT_AUTOMAKE(foreign subdir-objects color-tests dist-bzip2)
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES(Makefile)
AC_CANONICAL_HOST
AM_PROG_AS
AC_PROG_CC
AC_PROG_CXX
AC_PROG_LIBTOOL
case $host in
aarch64*-*-*)
arch=aarch64
;;
arm*-*-*)
arch=aarch32
;;
x86_64-*-*-*)
arch=x86_64
;;
*)
arch=generic
;;
esac
AM_CONDITIONAL([HOST_AARCH32], [test x$arch = xaarch32])
AM_CONDITIONAL([HOST_AARCH64], [test x$arch = xaarch64])
AM_CONDITIONAL([HOST_X86_64], [test x$arch = xx86_64])
AM_CONDITIONAL([HOST_GENERIC], [test x$arch = xgeneric])
# Stuff for tcmalloc
# Check whether some low-level functions/files are available
AC_HEADER_STDC
AC_CHECK_FUNCS(sbrk) # for tcmalloc to get memory
AC_CHECK_FUNCS(geteuid) # for turning off services when run as root
AC_CHECK_FUNCS(fork) # for the pthread_atfork setup
AC_CHECK_HEADERS(features.h) # for vdso_support.h
AC_CHECK_HEADERS(malloc.h) # some systems define stuff there, others not
AC_CHECK_HEADERS(sys/malloc.h) # where some versions of OS X put malloc.h
AC_CHECK_HEADERS(malloc/malloc.h) # another place OS X puts malloc.h (?)
AC_CHECK_HEADERS(glob.h) # for heap-profile-table (cleaning up profiles)
AC_CHECK_HEADERS(execinfo.h) # for stacktrace? and heapchecker_unittest
AC_CHECK_HEADERS(libunwind.h) # for stacktrace
AC_CHECK_HEADERS(unwind.h) # for stacktrace
AC_CHECK_HEADERS(sched.h) # for being nice in our spinlock code
AC_CHECK_HEADERS(conflict-signal.h) # defined on some windows platforms?
AC_CHECK_HEADERS(sys/prctl.h) # for thread_lister (needed by leak-checker)
AC_CHECK_HEADERS(linux/ptrace.h)# also needed by leak-checker
AC_CHECK_HEADERS(sys/syscall.h)
AC_CHECK_HEADERS(sys/socket.h) # optional; for forking out to symbolizer
AC_CHECK_HEADERS(sys/wait.h) # optional; for forking out to symbolizer
AC_CHECK_HEADERS(poll.h) # optional; for forking out to symbolizer
AC_CHECK_HEADERS(fcntl.h) # for tcmalloc_unittest
AC_CHECK_HEADERS(grp.h) # for heapchecker_unittest
AC_CHECK_HEADERS(pwd.h) # for heapchecker_unittest
AC_CHECK_HEADERS(sys/resource.h) # for memalign_unittest.cc
AC_CHECK_HEADERS(valgrind.h) # we have a local copy if this isn't found
AC_CHECK_HEADERS(sys/cdefs.h) # Where glibc defines __THROW
AC_CHECK_HEADERS(features.h) # Where __GLIBC__ is defined
# We override a lot of memory allocation routines, not all of which are
# standard. For those the system doesn't declare, we'll declare ourselves.
AC_CHECK_DECLS([cfree,
posix_memalign,
memalign,
valloc,
pvalloc],,,
[#define _XOPEN_SOURCE 600
#include <stdlib.h>
#include <malloc.h>])
# Also make sure we get standard PRI... definitions, even with glibc.
# We have to use AH_VERBATIM because we need the #ifdef guard (gcc buglet)
AH_VERBATIM([__STDC_FORMAT_MACROS],
[/* C99 says: define this to get the PRI... macros from stdint.h */
#ifndef __STDC_FORMAT_MACROS
# define __STDC_FORMAT_MACROS 1
#endif])
# Check if __builtin_stack_pointer() is available (for elfcore.h)
AC_MSG_CHECKING([for __builtin_stack_pointer()])
AC_LINK_IFELSE([AC_LANG_PROGRAM(, [void *sp = __builtin_stack_pointer()])],
[AC_DEFINE(HAVE_BUILTIN_STACK_POINTER, 1,
Define to 1 if compiler supports __builtin_stack_pointer)
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# Check for __builtin_expect()
AC_MSG_CHECKING([for __builtin_expect()])
AC_LINK_IFELSE([AC_LANG_PROGRAM(, return __builtin_expect(main != 0, 1))],
[AC_DEFINE(HAVE_BUILTIN_EXPECT, 1,
Define to 1 if compiler supports __builtin_expect)
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# Check if __environ is available (for GetenvBeforeMain)
AC_MSG_CHECKING([for __environ])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
[char **env = __environ])],
[AC_DEFINE(HAVE___ENVIRON, 1,
[Define to 1 if compiler supports __environ])
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# If we support __thread, that can speed up tcmalloc a bit.
# Note, however, that our code tickles a bug in gcc < 4.1.2
# involving TLS and -fPIC (which our libraries will use) on x86:
# http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#
# And mingw also does compile __thread but resultant code actually
# fails to work correctly at least in some not so ancient version:
# http://mingw-users.1079350.n2.nabble.com/gcc-4-4-multi-threaded-exception-handling-amp-thread-specifier-not-working-td3440749.html
AC_MSG_CHECKING([for __thread])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 1) || (__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ < 2))
#error gcc has this bug: http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#endif
#if defined(__MINGW32__)
#error mingw doesn't really support tls
#endif
], [static __thread int p = 0])],
[AC_DEFINE(HAVE_TLS, 1,
Define to 1 if compiler supports __thread)
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# glibc's __malloc_hook/etc were declared volatile starting in glibc 2.14
AC_MSG_CHECKING([if __malloc_hook is declared volatile])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <malloc.h>
void* (* volatile __malloc_hook)(size_t, const void*) = 0;],)],
[AC_DEFINE(MALLOC_HOOK_MAYBE_VOLATILE, volatile,
Define to 'volatile' if __malloc_hook is declared volatile)
AC_MSG_RESULT([yes])],
[AC_DEFINE(MALLOC_HOOK_MAYBE_VOLATILE, )
AC_MSG_RESULT([no])])
AC_FUNC_MMAP
# If AtomicWord != Atomic32, we need to define two versions of all the
# atomicops functions. If they're the same, we want to define only one.
AC_MSG_CHECKING([if int32_t is the same type as intptr_t])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h>]], [[int32_t v1 = 0; intptr_t v2 = 0; return (&v1 - &v2)]])],[AC_DEFINE(INT32_EQUALS_INTPTR, 1,
Define to 1 if int32_t is equivalent to intptr_t)
AC_MSG_RESULT([yes])],[AC_MSG_RESULT([no])])
AC_OUTPUT
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