Date: Wed, 21 Feb 2024 09:02:36 -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: <41665018-A638-43BB-85D2-EAB1878028FA@yahoo.com> In-Reply-To: <F68DB36B-51A9-4433-9008-7FB44D77D06C@yahoo.com> References: <F68DB36B-51A9-4433-9008-7FB44D77D06C@yahoo.com>
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On Feb 21, 2024, at 08:38, Mark Millard <marklmi@yahoo.com> wrote: > Mark Johnston <markj_at_freebsd.org> wrote on > Date: Wed, 21 Feb 2024 13:33:43 UTC : >=20 >> 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? >=20 > Trivial to reproduce via pkgbase install/upgrade: >=20 > # uname -apKU > FreeBSD aarch64-main-pkgs 15.0-CURRENT FreeBSD 15.0-CURRENT = main-n268410-445d3d227e68 GENERIC-NODEBUG arm64 aarch64 1500014 1500014 Gack: pkgbase does not have the kernel and world at the same place relative to git commits of source code. See my note from yesterday: = https://lists.freebsd.org/archives/freebsd-pkgbase/2024-February/000319.ht= ml Looking at /usr/src/tests/sys/kern/sigsys.c in this pkgbse context shows the content from about 10 hours after 445d3d227e68's commit: git: e53b83a849e3 - main - tests/sigsys: initialize parameter passed to = sysctlbyname() Gleb Smirnoff (CommitDate: 2024-02-20 22:37:45 +0000) (Note: The next commit's source was not present.) > # more main.c > int main(void) { return 0; } >=20 > # 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) I do not see the issue in my (somehwat older) personal builds: # uname -apKU you have mail FreeBSD CA72-16Gp-ZFS 15.0-CURRENT FreeBSD 15.0-CURRENT #134 = main-n268363-8b67c670a49b-dirty: Sat Feb 17 16:22:31 PST 2024 = root@CA72-16Gp-ZFS:/usr/obj/BUILDs/main-CA72-nodbg-clang/usr/main-src/arm6= 4.aarch64/sys/GENERIC-NODBG-CA72 arm64 aarch64 1500014 1500014 (Here kernel and world match git hashes: 8b67c670a49b . But my personal builds have patches and other tailoring relative to the official git hash they are based on.) =3D=3D=3D Mark Millard marklmi at yahoo.com
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