Bug 27775 - --gc-sections doesn't work on note sections
Summary: --gc-sections doesn't work on note sections
Status: UNCONFIRMED
Alias: None
Product: binutils
Classification: Unclassified
Component: gold (show other bugs)
Version: 2.35
: P2 normal
Target Milestone: ---
Assignee: Cary Coutant
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-04-24 11:30 UTC by Adam SE
Modified: 2022-06-22 06:29 UTC (History)
2 users (show)

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Description Adam SE 2021-04-24 11:30:14 UTC 
Looks like same issue as https://sourceware.org/bugzilla/show_bug.cgi?id=12851 but for gold.

$ ld.gold --version
GNU gold (GNU Binutils for Ubuntu 2.35.1) 1.16
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.

$ cat foo.s
	.section .note.stapsdt,"?","note"
	.dc.a _.stapsdt.base
	.section .stapsdt.base,"aG","progbits",.stapsdt.base,comdat
_.stapsdt.base: .space 1
	.size _.stapsdt.base,1


$ cat start.s
	.text
	.global start	/* Used by SH targets.  */
start:
	.global _start
_start:
	.global __start
__start:
	.global main	/* Used by HPPA targets.  */
main:
	.dc.a 0

$ make y
ld --gc-sections -o y foo.o start.o

$ make x
ld.gold --gc-sections -o x foo.o start.o
foo.o(.note.stapsdt+0x0): error: relocation refers to local symbol "_.stapsdt.base" [5], which is defined in a discarded section
make: *** [Makefile:4: x] Error 1