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| author | H.J. Lu <hjl.tools@gmail.com> | 2024-04-09 06:39:21 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-04-10 03:57:02 -0700 |
| commit | 219822fd5db6305592b45677a3b38c02b523360e (patch) | |
| tree | bd623bf325da7ee47240e38443cac7100936a20b /config | |
| parent | bdefc073061ff9e9334a1306e9c70745104dc57f (diff) | |
| download | gdb-219822fd5db6305592b45677a3b38c02b523360e.zip gdb-219822fd5db6305592b45677a3b38c02b523360e.tar.gz gdb-219822fd5db6305592b45677a3b38c02b523360e.tar.bz2 | |
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).
Define GCC_AC_FUNC_MMAP with export ASAN_OPTIONS=detect_leaks=0 to avoid
the sanitizer configure check failure.
config/
* mmap.m4 (GCC_AC_FUNC_MMAP): New.
* no-executables.m4 (AC_FUNC_MMAP): Renamed to GCC_AC_FUNC_MMAP.
Change AC_FUNC_MMAP to GCC_AC_FUNC_MMAP.
libiberty/
* Makefile.in (aclocal_deps): Add $(srcdir)/../config/mmap.m4.
* acinclude.m4: Change AC_FUNC_MMAP to GCC_AC_FUNC_MMAP.
* aclocal.m4: Regenerated.
* configure: Likewise.
zlib/
* acinclude.m4: Include ../config/mmap.m4.
* Makefile.in: Regenerated.
* configure: Likewise.
Diffstat (limited to 'config')
| -rw-r--r-- | config/mmap.m4 | 22 | ||||
| -rw-r--r-- | config/no-executables.m4 | 4 |
2 files changed, 24 insertions, 2 deletions
diff --git a/config/mmap.m4 b/config/mmap.m4 index fba0d9d..326b97b 100644 --- a/config/mmap.m4 +++ b/config/mmap.m4 @@ -95,3 +95,25 @@ if test $gcc_cv_func_mmap_anon = yes; then [Define if mmap with MAP_ANON(YMOUS) works.]) fi ]) + +dnl +dnl Avoid the sanitizer run-time memory leak failure in the mmap configure +dnl test. This should be removed when autoconf with commit: +dnl +dnl commit 09b6e78d1592ce10fdc975025d699ee41444aa3f +dnl Author: Paul Eggert <eggert@cs.ucla.edu> +dnl Date: Fri Feb 5 21:06:20 2016 -0800 +dnl Fix memory leak in AC_FUNC_MMAP +dnl +dnl * lib/autoconf/functions.m4 (AC_FUNC_MMAP): Fix memory leak +dnl in test case, found by configuring with gcc -fsanitize=address. +dnl +dnl is in use. +dnl +AC_DEFUN([GCC_AC_FUNC_MMAP], + save_ASAN_OPTIONS="$ASAN_OPTIONS" + ASAN_OPTIONS=detect_leaks=0 + export ASAN_OPTIONS + m4_defn([AC_FUNC_MMAP]) + ASAN_OPTIONS="$save_ASAN_OPTIONS" +) diff --git a/config/no-executables.m4 b/config/no-executables.m4 index 6842f84..e8e2537 100644 --- a/config/no-executables.m4 +++ b/config/no-executables.m4 @@ -49,14 +49,14 @@ m4_defn([AC_LINK_IFELSE])) dnl This is a shame. We have to provide a default for some link tests, dnl similar to the default for run tests. -m4_define([AC_FUNC_MMAP], +m4_define([GCC_AC_FUNC_MMAP], if test x$gcc_no_link = xyes; then if test "x${ac_cv_func_mmap_fixed_mapped+set}" != xset; then ac_cv_func_mmap_fixed_mapped=no fi fi if test "x${ac_cv_func_mmap_fixed_mapped}" != xno; then - m4_defn([AC_FUNC_MMAP]) + m4_defn([GCC_AC_FUNC_MMAP]) fi) m4_divert_pop()dnl |