https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108834
Bug ID: 108834
Summary: LTO: ltrans temporary file is used as module name in
ASAN
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
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, marxin at
gcc dot gnu.org
Target Milestone: ---
We originally noticed that accidentally in openSUSE bugzilla:
https://bugzilla.opensuse.org/show_bug.cgi?id=1208386
$ cat jhead.i
int foo;
$ gcc -flto -fsanitize=address jhead.i -shared -fPIC -o jhead && md5sum jhead
4e0fb88f928272b4962c6dcd8b845d71 jhead
$ gcc -flto -fsanitize=address jhead.i -shared -fPIC -o jhead && md5sum jhead
e3c77e7ce9d54afb812add5b87a254d1 jhead
$ strings jhead | grep ltrans
/tmp/ccIzP3oh.ltrans0.o
it comes from ASAN module name:
...
.LC2:
.string "./jhead.ltrans0.o"
.section .data.rel,"aw"
.align 32
.type .LASAN0.2, @object
.size .LASAN0.2, 64
.LASAN0.2:
.quad .LASAN1.0
.quad 4
.quad 64
.quad .LC1
.quad .LC2
which is main_input_filename:
gcc/asan.cc:3290
Anyway, I can fix it.
