https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67308
Bug ID: 67308
Summary: FATAL: ThreadSanitizer: unexpected memory mapping
Product: gcc
Version: 5.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: doko 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
Target Milestone: ---
[forwarded from https://bugs.debian.org/796246]
seen on the gcc-5-branch.
$ uname -r
4.1.0-3-generic
$ echo 'void main(void){}' | gcc -pie -fPIE -fsanitize=thread -xc - -ltsan &&
./a.out
FATAL: ThreadSanitizer: unexpected memory mapping 0x555caf24a000-0x555caf24b000
"""
There was an intentional change in the kernel that causes PIEs to be
loaded in a different address range:
https://git.kernel.org/linus/d1fd836dcf00d2028c700c7e44d2c23404062c90
I think ThreadSanitizer is just going to have to learn about this.
"""
