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llvm-project/lld/test/ELF/sht-group-gold-r.test

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Allow the GNU gold-style nonstandard SHT_GROUP section. The ELF standard defines that the SHT_GROUP section as follows: - its sh_link has the symbol index, and - the symbol name is used to uniquify section groups. Object files created by GNU gold does not seem to comply with the standard. They have this additional rule: - if the symbol has no name and a STT_SECTION symbol, a section name is used instead of a symbol name. If we don't do anything for this, the linker fails with a mysterious error message if input files are generated by gas. It is unfortunate but I think we need to support it. Differential Revision: https://reviews.llvm.org/D34064 llvm-svn: 305218
2017-06-13 02:46:33 +08:00
# GNU gold 1.14 (the newest version as of July 2017) seems to create
# non-standard-compliant SHT_GROUP sections when the -r option is given.
#
# Such SHT_GROUP sections use section names as their signatures
# instead of symbols pointed by sh_link field. Since it is prevalent,
# we accept such nonstandard sections.
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
# RUN: ld.lld %p/Inputs/sht-group-gold-r.elf %t.o -o %t.exe
# RUN: llvm-objdump -t %t.exe | FileCheck %s
# CHECK: .text 00000000 bar
# CHECK: .text 00000000 foo
.globl _start
_start:
ret