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[Bug ld/28124] ld: Make special sections in a section group GCable
From: |
i at maskray dot me |
Subject: |
[Bug ld/28124] ld: Make special sections in a section group GCable |
Date: |
Fri, 23 Jul 2021 23:46:17 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=28124
--- Comment #1 from Fangrui Song <i at maskray dot me> ---
For SHF_LINK_ORDER:
% cat a.s
.globl _start; _start: nop
.section .text.a,"ax",@progbits; ret
.section .init_array.a,"awo",@init_array,.text.a; ret
% gcc -fuse-ld=bfd a.s -nostdlib -Wl,--gc-sections
/usr/bin/ld.bfd: a.out: sh_link of section `.init_array' points to discarded
section `.text.a' of `/tmp/cceqfqVM.o'
/usr/bin/ld.bfd: final link failed: bad value
collect2: error: ld returned 1 exit status
(Trunk GNU ld is the same.)
If we allow GCable .init_array, we should discard .init_array.a and this should
link without an error.
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