maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/lld/test/COFF/entry-mangled.test

37 lines
1.1 KiB
Plaintext
Raw Normal View History

[LLD] Mark a number of x86 only tests to require x86 Noticed while testing for an out of tree target. There are probably more tests that should be so marked. I'm not sure who owns these tests so I've added a few names I recognise from the recent history. With advice from probinson, ruiu, rafael and dramatically improved by davidb. Thank you all! Differential Revision: https://reviews.llvm.org/D34685 llvm-svn: 308335
2017-07-19 02:40:50 +08:00
# REQUIRES: x86
COFF: Handle mangled entry symbol name. Compilers recognize "main" function and don't mangle its name. But if you use a different function as a user-defined entry name, and if you didn't define that function with extern C, your entry point function name is mangled. And the linker has to be able to find that. This is relatively rare but can happen. llvm-svn: 240953
2015-06-29 22:43:07 +08:00
# RUN: yaml2obj < %s > %t.obj
COFF: Make test commands shorter. NFC. llvm-svn: 244227
2015-08-07 00:47:46 +08:00
# RUN: lld-link /out:%t.exe /entry:main %t.obj
COFF: Numerous fixes for interaction between LTO and weak externals. We were previously hitting assertion failures in the writer in cases where a regular object file defined a weak external symbol that was defined by a bitcode file. Because /export and /entry name mangling were implemented using weak externals, the same problem affected mangled symbol names in bitcode files. The underlying cause of the problem was that weak external symbols were being resolved before doing LTO, so the symbol table may have contained stale references to bitcode symbols. The fix here is to defer weak external symbol resolution until after LTO. Also implement support for weak external symbols in bitcode files by modelling them as replaceable DefinedBitcode symbols. Differential Revision: http://reviews.llvm.org/D10940 llvm-svn: 241391
2015-07-04 13:28:41 +08:00
# RUN: llvm-as -o %t.lto.obj %S/Inputs/entry-mangled.ll
COFF: Make test commands shorter. NFC. llvm-svn: 244227
2015-08-07 00:47:46 +08:00
# RUN: lld-link /out:%t.exe /entry:main %t.lto.obj
COFF: Handle mangled entry symbol name. Compilers recognize "main" function and don't mangle its name. But if you use a different function as a user-defined entry name, and if you didn't define that function with extern C, your entry point function name is mangled. And the linker has to be able to find that. This is relatively rare but can happen. llvm-svn: 240953
2015-06-29 22:43:07 +08:00
[yaml2obj] Updating LLD tests to account for LLVM r273915 This removed the -format flag from yaml2obj in favor of YAML tags. llvm-svn: 273920
2016-06-28 04:17:08 +08:00
--- !COFF
COFF: Handle mangled entry symbol name. Compilers recognize "main" function and don't mangle its name. But if you use a different function as a user-defined entry name, and if you didn't define that function with extern C, your entry point function name is mangled. And the linker has to be able to find that. This is relatively rare but can happen. llvm-svn: 240953
2015-06-29 22:43:07 +08:00
header:
Machine: IMAGE_FILE_MACHINE_AMD64
Characteristics: []
sections:
- Name: .text
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 4
SectionData: 000000000000
symbols:
- Name: .text
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 6
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 0
Number: 0
Selection: IMAGE_COMDAT_SELECT_ANY
- Name: '?main@@YAHXZ'
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_FUNCTION
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
...