https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125980
Bug ID: 125980
Summary: RFC: asan: route global descriptor filenames
Product: gcc
Version: 15.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: andrej.kozemcak at siemens dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Target Milestone: ---
Created attachment 64848
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64848&action=edit
Proposal patch how fix the issue
Hi,
The ASAN globals instrumentation embeds the source filename into the
generated code. We hit this issue when we build our projects in
Yocto/OpenEmbedded
cross build. We enable ASAN in our pipelines and then Yocto build fails QA
check [buildpaths] because of the unmapped TMPDIR path. With AI help we found
the issue and prepare a paths witch fix that issue, see attachment files. Patch
also contains details descriptions about the issue. I don't understand GCC
codebase well and have less knowledge about that problematic. Because that we
don't want directly send the patch to gcc, but rather open this RFC bug to know
your opinions what you think about the issue and patch, which we prepare with
AI help.
Thank you
PS: Similar error we hit also in coverage, create separate "bug" for that
Example command which flags we use:
/projects/ccp-sd/tmp/work/armv8a-ccp-linux/ba-lms/2.3.0/recipe-sysroot-native/usr/bin/aarch64-ccp-linux/aarch64-ccp-linux-clang++
--sysroot=/projects/ccp-sd/tmp/work/armv8a-ccp-linux/ba-lms/2.3.0/recipe-sysroot
-I/home/projects/ba/ba-lms/include -I/home/projects/ba/ba-lms/src
-march=armv8-a+crc+crypto -mbranch-protection=standard --dyld-prefix=/usr
-fstack-protector-strong -U_FORTIFY_SOURCE -Wformat -Wformat-security
-Werror=format-security
--sysroot=/projects/ccp-sd/tmp/work/armv8a-ccp-linux/ba-lms/2.3.0/recipe-sysroot
-fsanitize=address -Og -g
-ffile-prefix-map=/home/projects/ba/ba-lms=/usr/src/debug/ba-lms/2.3.0
-ffile-prefix-map=/projects/ccp-sd/tmp/work/armv8a-ccp-linux/ba-lms/2.3.0/ba-lms-2.3.0=/usr/src/debug/ba-lms/2.3.0
-ffile-prefix-map=/projects/ccp-sd/tmp/work/armv8a-ccp-linux/ba-lms/2.3.0/recipe-sysroot=
-ffile-prefix-map=/projects/ccp-sd/tmp/work/armv8a-ccp-linux/ba-lms/2.3.0/recipe-sysroot-native=
-pipe -fvisibility-inlines-hidden -std=gnu++17 -MD -MT
tests/CMakeFiles/ba-lms-test.dir/Data.cpp.o -MF
tests/CMakeFiles/ba-lms-test.dir/Data.cpp.o.d -o
tests/CMakeFiles/ba-lms-test.dir/Data.cpp.o -c
/home/projects/ba/ba-lms/tests/Data.cpp
