https://sourceware.org/bugzilla/show_bug.cgi?id=28139
Bug ID: 28139
Summary: ld.gold fails while ld.bfd succeeds: error: relocation
refers to local symbol "" [2], which is defined in a
discarded section
Product: binutils
Version: 2.37
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gold
Assignee: ccoutant at gmail dot com
Reporter: slyfox at inbox dot ru
CC: ian at airs dot com
Target Milestone: ---
Initially reported by Dennis Schridde in https://bugs.gentoo.org/803173 as a
systemd-249.1 build failure when linked with ld.gold.
Here is ane xtracted example (needs systemtap header) that illustrates the
failure on x86_64:
$ cat bug.c
#include <sys/sdt.h>
void f(void *dev) {
STAP_PROBE("foo", "foo");
}
int main(){}
ld.gold fails:
$ x86_64-pc-linux-gnu-gcc -O2 -fno-PIE -fno-stack-protector -o b.o -c bug.c
$ x86_64-pc-linux-gnu-gcc -O2 -fno-PIE -fno-stack-protector -Wl,--gc-sections
-Wl,-O1 -fuse-ld=gold b.o -o bug
b.o(.note.stapsdt+0x14): error: relocation refers to local symbol "" [2], which
is defined in a discarded section
collect2: error: ld returned 1 exit status
ld.bfd succeeds:
$ x86_64-pc-linux-gnu-gcc -O2 -fno-PIE -fno-stack-protector -Wl,--gc-sections
-Wl,-O1 -fuse-ld=bfd b.o -o bug
Looks like -Wl,--gc-sections does too much for ld.gols. Which one is wrong
here?
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