https://bugs.kde.org/show_bug.cgi?id=476548
Bug ID: 476548
Summary: valgrind 3.22.0 fails on assertion when loading
debuginfo file produced by mold
Classification: Developer tools
Product: valgrind
Version: 3.22 GIT
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: jpalus+...@fastmail.com
Target Milestone: ---
SUMMARY
After valgrind upgrade to 3.22.0 it started failing with:
valgrind: m_debuginfo/readelf.c:3394 (vgModuleLocal_read_elf_debug): Assertion
'di->rodata_size == a_shdr.sh_size' failed.
when loading debuginfo file produced with mold 2.3.1. Binaries linked with
bfd/lld work fine.
valgrind 3.21.0 works fine.
Also raised in mold under https://github.com/rui314/mold/issues/1139 as it's
not clear who is to blame.
STEPS TO REPRODUCE
1. Build sample c++ binary with debug symbols and link with mold:
g++ -x c++ -g2 -fuse-ld=mold -o test - <<EOF
#include <iostream>
int main() {
std::cout << "hello world" << std::endl;
}
EOF
2. Create debuginfo file:
eu-strip -f test.di test
3. Run valgrind against binary:
valgrind -v ./test
OBSERVED RESULT
valgrind fails:
...
--413198-- Considering /home/users/builder/test.di ..
--413198-- .. CRC is valid
valgrind: m_debuginfo/readelf.c:3394 (vgModuleLocal_read_elf_debug): Assertion
'di->rodata_size == a_shdr.sh_size' failed.
...
EXPECTED RESULT
valgrind works fine
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