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llvm-project/lld/test/ELF/writable-sec-plt-reloc.s

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Allow relocations in rw sections to create plt entries. If a relocation cannot be implemented by the dynamic linker and the section is rw, allow creating a plt entry to use as the function address as if the section was ro. This matches bfd and gold. It also matches our behavior with -z notext. llvm-svn: 321430
2017-12-25 03:02:10 +08:00
# REQUIRES: x86
# RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
# RUN: llvm-mc %p/Inputs/writable-sec-plt-reloc.s -o %t2.o -filetype=obj -triple=x86_64-pc-linux
# RUN: ld.lld %t2.o -o %t2.so -shared
# RUN: ld.lld %t.o %t2.so -o %t
# RUN: llvm-readelf --symbols -r %t | FileCheck %s
# CHECK: R_X86_64_JUMP_SLOT {{.*}} foo + 0
[ELF][test] Improve tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete weak-undef-val.s - covered by relocation-undefined-weak.s Delete weak-undef-export.s - covered by additional test added to weak-undef.s Delete version-undef-sym.s - covered by undefined-versioned-symbol.s => version-symbol-undef.s Delete symbol-ordering-file2.s - covered by symbol-ordering-file.s Delete gotpcrelx.s - covered by gotpc-relax-und-dso.s => x86-64-gotpc-relax-und-dso.s llvm-svn: 371299
2019-09-07 18:42:11 +08:00
# CHECK: 0 FUNC GLOBAL DEFAULT UND foo
Allow relocations in rw sections to create plt entries. If a relocation cannot be implemented by the dynamic linker and the section is rw, allow creating a plt entry to use as the function address as if the section was ro. This matches bfd and gold. It also matches our behavior with -z notext. llvm-svn: 321430
2017-12-25 03:02:10 +08:00
.section .bar,"awx"
.global _start
_start:
Don't depend on "call foo" producing a X86_64_PC32. Newer versions of the gnu assembler produce a X86_64_PLT32 for calls. There is a change under review in llvm to do the same, so update the tests to not depend on it. We can still produce a R_X86_64_PC32 with ".long foo - .". llvm-svn: 325379
2018-02-17 04:05:58 +08:00
.long foo - .