[PATCH 0/2] mmap: Avoid the sanitizer configure check failure

[H.J. Lu]

On Tue, Apr 9, 2024 at 4:08 PM Sam James <sam@gentoo.org> wrote:
>
> "H.J. Lu" <hjl.tools@gmail.com> writes:
>
> > When -fsanitize=address,undefined is used to build, the mmap configure
> > check failed with
>
> I think Paul fixed this in autoconf commit
> 09b6e78d1592ce10fdc975025d699ee41444aa3f, so we should add a comment
> about that so we can clean this up in future.

Sure . That was in 2016.

> >
> > =================================================================
> > ==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.
> >
> > H.J. Lu (2):
> >   mmap: Avoid the sanitizer configure check failure
> >   mmap: Avoid the sanitizer configure check failure
> >
> >  bfd/Makefile.in          |  2 +-
> >  bfd/aclocal.m4           |  1 +
> >  bfd/configure            |  5 +++++
> >  bfd/configure.ac         |  2 +-
> >  binutils/Makefile.in     |  2 +-
> >  binutils/aclocal.m4      |  1 +
> >  binutils/configure       |  5 +++++
> >  binutils/configure.ac    |  2 +-
> >  config/mmap.m4           | 12 ++++++++++++
> >  config/no-executables.m4 |  4 ++--
> >  ld/Makefile.in           |  2 +-
> >  ld/aclocal.m4            |  1 +
> >  ld/configure             |  5 +++++
> >  ld/configure.ac          |  2 +-
> >  libctf/Makefile.in       |  2 +-
> >  libctf/aclocal.m4        |  1 +
> >  libctf/configure         |  5 +++++
> >  libctf/configure.ac      |  2 +-
> >  libiberty/Makefile.in    |  1 +
> >  libiberty/acinclude.m4   |  2 +-
> >  libiberty/aclocal.m4     |  1 +
> >  libiberty/configure      |  5 +++++
> >  libsframe/Makefile.in    |  1 +
> >  libsframe/aclocal.m4     |  1 +
> >  libsframe/configure      |  5 +++++
> >  libsframe/configure.ac   |  2 +-
> >  zlib/Makefile.in         |  2 +-
> >  zlib/acinclude.m4        |  1 +
> >  zlib/configure           |  7 -------
> >  29 files changed, 64 insertions(+), 20 deletions(-)



-- 
H.J.