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llvm-project/lld/test/ELF/symbol-override.s

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[lld] Add REQUIRES: x86 where needed to tests If building lld without x86 support, tests that require that support should be treated as unsupported, not errors. Tested using: 1. cmake '-DLLVM_TARGETS_TO_BUILD=AArch64;X86' make check-lld => Expected Passes : 1406 Unsupported Tests : 287 2. cmake '-DLLVM_TARGETS_TO_BUILD=AArch64' make check-lld => Expected Passes : 410 Unsupported Tests : 1283 Patch by Joel Jones Differential Revision: https://reviews.llvm.org/D47748 llvm-svn: 334095
2018-06-06 21:56:51 +08:00
// REQUIRES: x86
[ELF] - Symbols from object files that override symbols in DSO are added to .dynsym table. Main executable did not export symbols that exist both in the main executable and in DSOs before this patch. Symbols from object files that override symbols in DSO should be added to .dynsym table. Differential revision: http://reviews.llvm.org/D16405 llvm-svn: 258672
2016-01-25 16:44:38 +08:00
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/symbol-override.s -o %t2.o
// RUN: ld.lld -shared %t2.o -o %t2.so
// RUN: ld.lld %t1.o %t2.so -o %t
[ELF][test] Simplify and reorganize tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete simple Inputs/*.s files Delete version-script-copy-rel.s - covered by verdef-defaultver.s Delete version-wildcard.test - covered by version-script-glob.s llvm-svn: 371213
2019-09-06 23:10:31 +08:00
// RUN: nm -D %t | FileCheck %s
[ELF] - Symbols from object files that override symbols in DSO are added to .dynsym table. Main executable did not export symbols that exist both in the main executable and in DSOs before this patch. Symbols from object files that override symbols in DSO should be added to .dynsym table. Differential revision: http://reviews.llvm.org/D16405 llvm-svn: 258672
2016-01-25 16:44:38 +08:00
[ELF][test] Simplify and reorganize tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete simple Inputs/*.s files Delete version-script-copy-rel.s - covered by verdef-defaultver.s Delete version-wildcard.test - covered by version-script-glob.s llvm-svn: 371213
2019-09-06 23:10:31 +08:00
// CHECK: do
// CHECK-NEXT: foo
// CHECK-NOT: {{.}}
[ELF] - Symbols from object files that override symbols in DSO are added to .dynsym table. Main executable did not export symbols that exist both in the main executable and in DSOs before this patch. Symbols from object files that override symbols in DSO should be added to .dynsym table. Differential revision: http://reviews.llvm.org/D16405 llvm-svn: 258672
2016-01-25 16:44:38 +08:00
.text
.globl foo
.type foo,@function
Remove trailing whitespaces. llvm-svn: 276649
2016-07-26 00:51:52 +08:00
foo:
[ELF] - Symbols from object files that override symbols in DSO are added to .dynsym table. Main executable did not export symbols that exist both in the main executable and in DSOs before this patch. Symbols from object files that override symbols in DSO should be added to .dynsym table. Differential revision: http://reviews.llvm.org/D16405 llvm-svn: 258672
2016-01-25 16:44:38 +08:00
nop
.text
.globl _start
_start:
Use the plt entry as the address of some symbols. This is the function equivalent of a copy relocation. Since functions are expected to change sizes, we cannot use copy relocations. In situations where one would be needed, what is done instead is: * Create a plt entry * Output an undefined symbol whose addr is the plt entry. The dynamic linker makes sure any shared library uses the plt entry as the function address. llvm-svn: 260224
2016-02-09 23:11:01 +08:00
callq do@plt