llvm-project/llvm
Reid Kleckner 13c9ee684c [mingw] Fix GCC ABI compatibility for comdat things
Summary:
GCC and the binutils COFF linker do comdats differently from MSVC.
If we want to be ABI compatible, we have to do what they do, which is to
emit unique section names like ".text$_Z3foov" instead of short section
names like ".text". Otherwise, the binutils linker gets confused and
reports multiple definition errors when two object files from GCC and
Clang containing the same inline function are linked together.

The best description of the issue is probably at
https://github.com/Alexpux/MINGW-packages/issues/1677, we don't seem to
have a good one in our tracker.

I fixed up the .pdata and .xdata sections needed everywhere other than
32-bit x86. GCC doesn't use associative comdats for those, it appears to
rely on the section name.

Reviewers: smeenai, compnerd, mstorsjo, martell, mati865

Subscribers: llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D48402

llvm-svn: 335286
2018-06-21 20:27:38 +00:00
..
bindings [LLVM-C] [OCaml] Remove LLVMAddBBVectorizePass 2018-05-28 16:58:10 +00:00
cmake [cmake] Change ON/OFF to YES/NO. NFC 2018-06-14 23:40:04 +00:00
docs [AMDGPU] Update assembler for HSA Code Object v3 2018-06-21 19:38:56 +00:00
examples [ORC] Update JITCompileCallbackManager to support multi-threaded code. 2018-05-30 01:57:45 +00:00
include [mingw] Fix GCC ABI compatibility for comdat things 2018-06-21 20:27:38 +00:00
lib [mingw] Fix GCC ABI compatibility for comdat things 2018-06-21 20:27:38 +00:00
projects
resources
runtimes [CMake] Pass additional CMake tools to external projects 2018-06-06 21:43:37 +00:00
test [mingw] Fix GCC ABI compatibility for comdat things 2018-06-21 20:27:38 +00:00
tools [llvm-exegesis][NFC] Simplify BenchmarkRunner. 2018-06-21 14:49:04 +00:00
unittests [llvm-exegesis] Add mechanism to add target-specific passes. 2018-06-20 11:54:35 +00:00
utils TableGen/SearchableTables: Support more generic enums and tables 2018-06-21 13:36:22 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore
CMakeLists.txt [CMake] Handle 'libtool' being at a path with spaces in it. 2018-06-13 18:21:47 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of the MIPS backend 2018-06-21 09:59:44 +00:00
CREDITS.TXT Update my information in the CREDITS file. 2018-06-15 20:02:11 +00:00
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
LLVMBuild.txt
README.txt Test commit: remove a blank line 2018-06-08 21:21:55 +00:00
RELEASE_TESTERS.TXT Remove myself from the release testers list. (NFC) 2018-06-20 21:25:50 +00:00
configure
llvm.spec.in

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