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llvm-project/lld/test/ELF/ehdr_start.s

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[ELF] Define __ehdr_start symbol This symbol can be used by the program to examine its own headers. Differential Revision: https://reviews.llvm.org/D23750 llvm-svn: 279452
2016-08-23 02:44:04 +08:00
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
# RUN: ld.lld %t.o -o %t
# RUN: llvm-objdump -t %t | FileCheck %s
Fix a few symbols that are not actually ABS. The symbols _end, end, _etext, etext, _edata, edata and __ehdr_start refer to positions in the file and are therefore not absolute. Making them absolute was on unfortunate cargo cult of what bfd was doing. Changing the symbols allows for pc relocations to them to be resolved, which should fix the wine build. llvm-svn: 293385
2017-01-29 01:48:21 +08:00
# CHECK: 0000000000200040 .text 00000000 .hidden __ehdr_start
[ELF] Define __ehdr_start symbol This symbol can be used by the program to examine its own headers. Differential Revision: https://reviews.llvm.org/D23750 llvm-svn: 279452
2016-08-23 02:44:04 +08:00
.text
.global _start, __ehdr_start
_start:
[ELF] - Untabify. NFC. llvm-svn: 286800
2016-11-14 17:33:38 +08:00
.quad __ehdr_start
[ELF] - Do not create reserved symbols in case of relocatable output. This patch stops creating symbols like __ehdr_start, _end/_etext_edata,__tls_get_addr when using -r. This fixes PR30984. Differential revision: https://reviews.llvm.org/D26600 llvm-svn: 286941
2016-11-15 16:19:02 +08:00
# RUN: ld.lld -r %t.o -o %t.r
# RUN: llvm-objdump -t %t.r | FileCheck %s --check-prefix=RELOCATABLE
# RELOCATABLE: 0000000000000000 *UND* 00000000 __ehdr_start