Commit Graph

7 Commits

Author SHA1 Message Date
Martin Storsjo de6038b265 [llvm-dlltool] Respect NONAME keyword
This adds proper handling of the NONAME-keyword, which makes llvm-dlltool
generate an import using the ordinal instead of the name.

Patch by by Jannik Vogel, test added by Stefan Schmidt.

Differential Revision: https://reviews.llvm.org/D62175

llvm-svn: 361367
2019-05-22 09:49:54 +00:00
Fangrui Song e29e30b139 [llvm-readobj] Change -long-option to --long-option in tests. NFC
We use both -long-option and --long-option in tests. Switch to --long-option for consistency.

In the "llvm-readelf" mode, -long-option is discouraged as it conflicts with grouped short options and it is not accepted by GNU readelf.

While updating the tests, change llvm-readobj -s to llvm-readobj -S to reduce confusion ("s" is --section-headers in llvm-readobj but --symbols in llvm-readelf).

llvm-svn: 359649
2019-05-01 05:27:20 +00:00
Martin Storsjo 146db4405c [llvm-dlltool] Set a proper machine type for weak symbol object files
This makes GNU binutils not reject the libraries outright.

GNU ld handles weak externals slightly differently though, so it
can't use them for aliases in import libraries, but this makes GNU
ld able to use the rest of the import libraries.

LLD accepted object files with machine type 0 aka
IMAGE_FILE_MACHINE_UNKNOWN.

Differential Revision: https://reviews.llvm.org/D59742

llvm-svn: 356982
2019-03-26 09:02:44 +00:00
Martin Storsjo a6ffc9c8df [COFF] Adjust how we flag weak externals
This fixes PR36096.

Originally based on a patch by Martell Malone.

Differential Revision: https://reviews.llvm.org/D44357

llvm-svn: 337613
2018-07-20 20:48:29 +00:00
Martin Storsjo 284ab80f8d [COFF] Improve correctness of def parsing for GNU features
The operator == used for exporting a function with a different
name in the DLL compared to the name in the import library
(which is useful for adding linker level aliases for function
in the import library) is a feature distinct and different from
the operator = used for exporting a function with a different
name (both in import library and DLL) than in the implementation
producing the DLL.

When creating an import library using dlltool, from a def file that
contains forwards (Func = OtherDll.Func), this shouldn't affect the
produced import library, which should still behave just as if it
was a normal exported function.

This clears a lot of confusion and subtle misunderstandings, and
avoids a parameter that was used to avoid creating weak aliases
when invoked from lld. (This parameter was added previously due to
the existing conflation of the two features.)

Differential Revision: https://reviews.llvm.org/D46245

llvm-svn: 331859
2018-05-09 09:21:53 +00:00
Rui Ueyama efb5024e57 [COFF] Ignore semicolons in module definition identifiers
Patch by David Major.

The NSS project's .def files make heavy use of semicolons in a
frightening attempt at portability:
https://hg.mozilla.org/projects/nss/raw-file/tip/lib/ckfw/capi/nsscapi.def

lld-link was treating the semicolon as part of the export name,
resulting in unresolved symbols. This patch includes ';' in the list of
characters to split on.

Differential Revision: https://reviews.llvm.org/D39968

llvm-svn: 319933
2017-12-06 19:18:24 +00:00
Martin Storsjo 53d7ba76e4 [test] Move llvm-dlltool tests into tools/llvm-dlltool. NFC.
A toplevel test directory DllTool isn't consistent with other
similar tools.

Differential Revision: https://reviews.llvm.org/D39513

llvm-svn: 317189
2017-11-02 07:57:32 +00:00