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llvm-project/lld/test/ELF/gc-sections-no-undef-error.s

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Add test for interaction of --gc-sections and undefined references It is possible for a link to fail with an undefined reference, unless --gc-sections is specified, removing the reference in the process. This doesn't look to be tested anywhere explicitly, so I thought it useful to add a test for it to ensure the behaviour is maintained. Reviewers: ruiu Differential Revision: https://reviews.llvm.org/D42299 llvm-svn: 323099
2018-01-22 18:58:06 +08:00
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# Sanity check that the link will fail with the undefined error without
# gc-sections.
[ELF][test] Change -o %t to -o /dev/null if the output is not needed
2020-02-13 13:48:45 +08:00
# RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s
Add test for interaction of --gc-sections and undefined references It is possible for a link to fail with an undefined reference, unless --gc-sections is specified, removing the reference in the process. This doesn't look to be tested anywhere explicitly, so I thought it useful to add a test for it to ensure the behaviour is maintained. Reviewers: ruiu Differential Revision: https://reviews.llvm.org/D42299 llvm-svn: 323099
2018-01-22 18:58:06 +08:00
# CHECK: error: undefined symbol: undefined
# RUN: ld.lld %t.o --gc-sections -o %t
.section .text.unused,"ax",@progbits
unused:
callq undefined
.text
.global _start
_start:
nop