https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94391
Bug ID: 94391
Summary: gcc refers to absolute symbols with R_X86_64_PC32
relocation
Product: gcc
Version: 9.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: yshuiv7 at gmail dot com
Target Milestone: ---
Test case:
Source file (a.c):
extern char _binary_a_c_size[];
unsigned long foo() { return (unsigned long)_binary_a_c_size; }
Run:
objcopy -B i386:x86-64 -I binary -O elf64-x86-64 a.c b.o
gcc -fuse-ld=lld -fpie -pie a.c b.o
lld complains about:
ld.lld: error: relocation R_X86_64_PC32 cannot refer to absolute symbol:
_binary_a_c_size
>>> defined in b.o
>>> referenced by a.c
>>> /tmp/cc3iReeC.o:(foo)
Also, this seems to be more than just a problem in gcc. Doing the same test
with clang+lld yields the expected results. However, with clang+gold/bfd, the
absolute symbol is relocated.
