Date: Wed, 21 Feb 2024 08:38:31 -0800 From: Mark Millard <marklmi@yahoo.com> To: hartmut.brandt@dlr.de, Mark Johnston <markj@FreeBSD.org>, FreeBSD Current <freebsd-current@freebsd.org> Cc: FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Subject: Re: sanitizers broken (was RE: libc/libsys split coming soon) Message-ID: <F68DB36B-51A9-4433-9008-7FB44D77D06C@yahoo.com> References: <F68DB36B-51A9-4433-9008-7FB44D77D06C.ref@yahoo.com>
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Mark Johnston <markj_at_freebsd.org> wrote on
Date: Wed, 21 Feb 2024 13:33:43 UTC :
> On Wed, Feb 21, 2024 at 09:52:23AM +0000, Hartmut.Brandt@dlr.de wrote:
> > Hi,
> >=20
> > I updated yesterday and now event a minimal program with
> >=20
> > cc -fsanitize=3Daddress
> >=20
> > produces
> >=20
> > ld: error: undefined symbol: __elf_aux_vector
> > >>> referenced by sanitizer_linux_libcdep.cpp:950 =
(/usr/src/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_=
linux_libcdep.cpp:950)
> > >>> sanitizer_linux_libcdep.o:(__sanitizer::ReExec()) in archive =
/usr/lib/clang/17/lib/freebsd/libclang_rt.asan-x86_64.a
> > cc: error: linker command failed with exit code 1 (use -v to see =
invocation)
> >=20
> > I think this is caused by the libsys split.
>=20
> I don't see any such problem on a system running 5f7ac491eef4, which
> includes the libsys split. Which compiler are you using, and which
> revision are you running?
Trivial to reproduce via pkgbase install/upgrade:
# uname -apKU
FreeBSD aarch64-main-pkgs 15.0-CURRENT FreeBSD 15.0-CURRENT =
main-n268410-445d3d227e68 GENERIC-NODEBUG arm64 aarch64 1500014 1500014
# more main.c
int main(void) { return 0; }
# cc -fsanitize=3Daddress main.c
ld: error: undefined symbol: __elf_aux_vector
>>> referenced by sanitizer_linux_libcdep.cpp:950 =
(/home/bapt/worktrees/main/contrib/llvm-project/compiler-rt/lib/sanitizer_=
common/sanitizer_linux_libcdep.cpp:950)
>>> sanitizer_linux_libcdep.o:(__sanitizer::ReExec()) in =
archive /usr/lib/clang/17/lib/freebsd/libclang_rt.asan-aarch64.a
>>> referenced by sanitizer_linux_libcdep.cpp:950 =
(/home/bapt/worktrees/main/contrib/llvm-project/compiler-rt/lib/sanitizer_=
common/sanitizer_linux_libcdep.cpp:950)
>>> sanitizer_linux_libcdep.o:(__sanitizer::ReExec()) in =
archive /usr/lib/clang/17/lib/freebsd/libclang_rt.asan-aarch64.a
cc: error: linker command failed with exit code 1 (use -v to see =
invocation)
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
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