https://sourceware.org/bugzilla/show_bug.cgi?id=23644
Bug ID: 23644
Summary: Gold emits relocations for hidden symbols
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gold
Assignee: ccoutant at gmail dot com
Reporter: mh-sourceware at glandium dot org
CC: ian at airs dot com
Target Milestone: ---
$ cat test.c
__attribute__((weak, visibility("hidden"))) extern void foo();
int main() {
if (foo)
foo();
return 0;
}
$ gcc -o test test.c -pie -O3 -fuse-ld=gold
$ objdump -t test | grep foo
0000000000000000 w *UND* 0000000000000000 .hidden foo
$ readelf -r test | grep foo
000000001fe0 000200000006 R_X86_64_GLOB_DAT 0000000000000000 foo + 0
000000002008 000200000007 R_X86_64_JUMP_SLO 0000000000000000 foo + 0
Compare with BFD ld:
$ gcc -o test test.c -pie -O3
$ objdump -t test | grep foo
$ readelf -r test | grep foo
This causes subtle problems, such as
https://bugzilla.mozilla.org/show_bug.cgi?id=1490845#c3
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