mmap: Avoid the sanitizer configure check failure

When -fsanitize=address,undefined is used to build, the mmap configure
check failed with

=================================================================
==231796==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 4096 byte(s) in 1 object(s) allocated from:
    #0 0x7cdd3d0defdf in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:69
    #1 0x5750c7f6d72b in main /home/alan/build/gas-san/all/bfd/conftest.c:239

Direct leak of 4096 byte(s) in 1 object(s) allocated from:
    #0 0x7cdd3d0defdf in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:69
    #1 0x5750c7f6d2e1 in main /home/alan/build/gas-san/all/bfd/conftest.c:190

SUMMARY: AddressSanitizer: 8192 byte(s) leaked in 2 allocation(s).

Replace AC_FUNC_MMAP with GCC_AC_FUNC_MMAP to avoid the sanitizer
configure check failure.

bfd/

	* configure.ac: Replace AC_FUNC_MMAP with GCC_AC_FUNC_MMAP.
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.

binutils/

	* configure.ac: Replace AC_FUNC_MMAP with GCC_AC_FUNC_MMAP.
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.

ld/

	* configure.ac: Replace AC_FUNC_MMAP with GCC_AC_FUNC_MMAP.
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.

libctf/

	* configure.ac: Replace AC_FUNC_MMAP with GCC_AC_FUNC_MMAP.
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.

libsframe/

	* configure.ac: Replace AC_FUNC_MMAP with GCC_AC_FUNC_MMAP.
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.

4 files changed, 8 insertions, 2 deletions

diff --git a/bfd/Makefile.in b/bfd/Makefile.in
index faaa0c4..3092bff 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -125,7 +125,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../config/lib-ld.m4 \
 	$(top_srcdir)/../config/lib-link.m4 \
 	$(top_srcdir)/../config/lib-prefix.m4 \
-	$(top_srcdir)/../config/nls.m4 \
+	$(top_srcdir)/../config/mmap.m4 $(top_srcdir)/../config/nls.m4 \
 	$(top_srcdir)/../config/override.m4 \
 	$(top_srcdir)/../config/pkg.m4 \
 	$(top_srcdir)/../config/plugins.m4 \
diff --git a/bfd/aclocal.m4 b/bfd/aclocal.m4
index 4b3fd56..8364b5d 100644
--- a/bfd/aclocal.m4
+++ b/bfd/aclocal.m4
@@ -1180,6 +1180,7 @@ m4_include([../config/lead-dot.m4])
 m4_include([../config/lib-ld.m4])
 m4_include([../config/lib-link.m4])
 m4_include([../config/lib-prefix.m4])
+m4_include([../config/mmap.m4])
 m4_include([../config/nls.m4])
 m4_include([../config/override.m4])
 m4_include([../config/pkg.m4])
diff --git a/bfd/configure b/bfd/configure
index 210550a..89fe438 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -17332,6 +17332,9 @@ done
 
 
 
+save_ASAN_OPTIONS="$ASAN_OPTIONS"
+  ASAN_OPTIONS=detect_leaks=0
+  export ASAN_OPTIONS
 
 for ac_func in getpagesize
 do :
@@ -17510,6 +17513,8 @@ $as_echo "#define HAVE_MMAP 1" >>confdefs.h
 fi
 rm -f conftest.mmap conftest.txt
 
+  ASAN_OPTIONS="$save_ASAN_OPTIONS"
+
 for ac_func in madvise mprotect
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
diff --git a/bfd/configure.ac b/bfd/configure.ac
index 02d8ba9..29ede92 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -1029,7 +1029,7 @@ AC_MSG_RESULT($bfd_file_ptr)
 AC_SUBST(bfd_file_ptr)
 AC_SUBST(bfd_ufile_ptr)
 
-AC_FUNC_MMAP
+GCC_AC_FUNC_MMAP
 AC_CHECK_FUNCS(madvise mprotect)
 case ${want_mmap}+${ac_cv_func_mmap_fixed_mapped} in
   true+yes )  AC_DEFINE(USE_MMAP, 1, [Use mmap if it's available?]) ;;