llvm-mirror/section-linkorder.s at 548daf04b5eb9d78a5d95d3b365b4e356176fe93 - llvm-mirror - Git.je (Gitea)

RPCS3/llvm-mirror

mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-22 18:54:02 +01:00

Fangrui Song 6fcac4f990 [MC] Set sh_link to 0 if the associated symbol is undefined

Part of https://bugs.llvm.org/show_bug.cgi?id=41734

LTO can drop externally available definitions. Such AssociatedSymbol is
not associated with a symbol. ELFWriter::writeSection() will assert.

Allow a SHF_LINK_ORDER section to have sh_link=0.

We need to give sh_link a syntax, a literal zero in the linked-to symbol
position, e.g. `.section name,"ao",@progbits,0`

Reviewed By: pcc

Differential Revision: https://reviews.llvm.org/D72899

2020-08-03 13:43:48 -07:00

9 lines

331 B

ArmAsm

Raw Blame History

 # RUN: llvm-mc -triple x86_64 %s | FileCheck %s --check-prefix=ASM
 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t
 # RUN: llvm-readelf -S %t | FileCheck %s
 # ASM:   .section .linkorder,"ao",@progbits,0
 # CHECK: Name       Type     {{.*}} Flg Lk
 # CHECK: .linkorder PROGBITS {{.*}}  AL  0
 .section .linkorder,"ao",@progbits,0