https://sourceware.org/bugzilla/show_bug.cgi?id=20882
Bug ID: 20882
Summary: GNU ld discards sections required by relocations in
.debug_info with --gc-sections
Product: binutils
Version: 2.27
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: rguenth at gcc dot gnu.org
Target Milestone: ---
> cat t1.s
.text
.globl main
.type main, @function
main:
ret
.section .debug_info,"",@progbits
.long t.c.4903c230+2
> cat t2.s
.section .debug_info,"",@progbits
.hidden t.c.4903c230
.globl t.c.4903c230
t.c.4903c230:
.long 0x28
> as -o t1.o t1.s
> as -o t2.o t2.s
> ld -o t.o t1.o t2.o --gc-sections --entry=main
> readelf -S t.o | grep debug_info
[ 2] .debug_info PROGBITS 0000000000000000 00000079
> readelf -x 2 t.o
Hex dump of section '.debug_info':
0x00000000 00000000 ....
while gold is fine:
> gold -o t.o t1.o t2.o --gc-sections --entry=main
> readelf -S t.o | grep debug_info
[ 2] .debug_info PROGBITS 0000000000000000 00000079
> readelf -x 2 t.o
Hex dump of section '.debug_info':
0x00000000 06000000 28000000 ....(...
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