diff options
Diffstat (limited to 'build/autoconf/alloc.m4')
| -rw-r--r-- | build/autoconf/alloc.m4 | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/build/autoconf/alloc.m4 b/build/autoconf/alloc.m4 new file mode 100644 index 0000000000..fe4a2ffec7 --- /dev/null +++ b/build/autoconf/alloc.m4 @@ -0,0 +1,54 @@ +dnl This Source Code Form is subject to the terms of the Mozilla Public +dnl License, v. 2.0. If a copy of the MPL was not distributed with this +dnl file, You can obtain one at http://mozilla.org/MPL/2.0/. + +dnl Check for the existence of various allocation headers/functions +AC_DEFUN([MOZ_CHECK_ALLOCATOR],[ + +MALLOC_HEADERS="malloc.h malloc_np.h malloc/malloc.h sys/malloc.h" +MALLOC_H= + +for file in $MALLOC_HEADERS; do + MOZ_CHECK_HEADER($file, [MALLOC_H=$file]) + if test "$MALLOC_H" != ""; then + AC_DEFINE_UNQUOTED(MALLOC_H, <$MALLOC_H>) + break + fi +done + +MALLOC_USABLE_SIZE_CONST_PTR=const +if test -n "$HAVE_MALLOC_H"; then + AC_MSG_CHECKING([whether malloc_usable_size definition can use const argument]) + AC_TRY_COMPILE([#include <malloc.h> + #include <stddef.h> + size_t malloc_usable_size(const void *ptr);], + [return malloc_usable_size(0);], + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no]) + MALLOC_USABLE_SIZE_CONST_PTR=) +fi +AC_DEFINE_UNQUOTED([MALLOC_USABLE_SIZE_CONST_PTR],[$MALLOC_USABLE_SIZE_CONST_PTR]) + + +dnl In newer bionic headers, valloc is built but not defined, +dnl so we check more carefully here. +AC_MSG_CHECKING([for valloc in malloc.h]) +AC_EGREP_HEADER(valloc, malloc.h, + AC_DEFINE(HAVE_VALLOC) + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no])) + +AC_MSG_CHECKING([for valloc in unistd.h]) +AC_EGREP_HEADER(valloc, unistd.h, + AC_DEFINE(HAVE_VALLOC) + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no])) + +AC_MSG_CHECKING([for _aligned_malloc in malloc.h]) +AC_EGREP_HEADER(_aligned_malloc, malloc.h, + AC_DEFINE(HAVE_ALIGNED_MALLOC) + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no])) + + +]) |