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8 Commits

Author SHA1 Message Date
Chris Jackson 1a721eb3a2 [lld] Make tests calling llvm-ar more robust 
Some lit tests that call llvm-ar use the 'r' flag. If the target archive
already exists and is in a corrupt state, this can cause the test to fail. We
have added 'rm -f' calls before the llvm-ar calls to increase the
robustness of the tests.

Differential revision: https://reviews.llvm.org/D49184

llvm-svn: 338705
 2018-08-02 11:33:54 +00:00
Joel Jones a5752e199c [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 13:56:51 +00:00
Martin Storsjo 0010707e1c [COFF] Don't export symbols that have corresponding __imp_ symbols 
GNU ld has got an exception for such symbols, and mingw-w64
occasionally uses that exception to avoid exporting symbols in cases
where they otherwise aren't caught by the other exclusion mechanisms.

Differential Revision: https://reviews.llvm.org/D40553

llvm-svn: 319291
 2017-11-29 05:50:49 +00:00
Martin Storsjo fe3eda9137 [COFF] Improve the autoexport check for symbols from import libraries with -opt:noref 
If -opt:noref is specified, they can end up with isLive() == 1
when the autoexport check is run.

To reduce the risk of potential issues, only consider exporting
DefinedRegular and DefinedCommon, nothing else.

Differential Revision: https://reviews.llvm.org/D40014

llvm-svn: 318384
 2017-11-16 07:22:44 +00:00
Martin Storsjo dc95dbfcab [COFF] Autoexport symbols as data if they don't point to an executable section 
This was already taken care of for the output def file.

Differential Revision: https://reviews.llvm.org/D39573

llvm-svn: 317367
 2017-11-03 20:58:20 +00:00
Martin Storsjo b40ccc1c58 [COFF] Exclude certain static libraries and object files when exporting all symbols 
This more or less matches what GNU ld does.

Differential Revision: https://reviews.llvm.org/D38937

llvm-svn: 316148
 2017-10-19 06:56:04 +00:00
Martin Storsjo cbf43f0b7b [COFF] Fix a typo in a comment in a test. NFC. 
These chars are accidentally included vim commands.

llvm-svn: 315880
 2017-10-15 21:09:50 +00:00
Martin Storsjo 7f71acdcd7 [COFF] Add support for automatically exporting all symbols 
GNU ld automatically exports all symbols if no symbols have
been chosen to export via either def files or dllexport attributes.
The same behaviour can also be enabled via the GNU ld option
--export-all-symbols, in case some symbols are marked for export
via a def file or dllexport attribute.

The list of excluded symbols is from GNU ld, minus the
cygwin specific symbols.

Also add support for outputting the actual list of exported
symbols in a def file, as in the GNU ld option --output-def.

These options in GNU ld are documented in
https://sourceware.org/binutils/docs/ld/WIN32.html.

This currently exports all symbols from object files pulled in
from libmingw32 and libmingwex and other static libraries
that are linked in.

Differential Revision: https://reviews.llvm.org/D38760

llvm-svn: 315562
 2017-10-12 05:37:13 +00:00