Commit Graph

22 Commits

Author SHA1 Message Date
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Martin Storsjo 509f1668e5 [COFF] Use symbolic constants instead of hardcoded numbers. NFCI.
Patch by Martell Malone.

llvm-svn: 337614
2018-07-20 20:48:33 +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
Martin Storsjo f641d0d4f2 [COFF] Keep the underscore on exported decorated stdcall functions in MSVC mode
This (together with the corresponding LLD commit, that contains the
testcase updates) fixes PR35733.

Differential Revision: https://reviews.llvm.org/D41631

llvm-svn: 323035
2018-01-20 11:44:32 +00:00
Galina Kistanova 6532b3b9d2 Fixed the gcc 'enumeral and non-enumeral type in conditional expression [-Werror=extra]' warning introduced by r320750
llvm-svn: 320868
2017-12-15 22:15:29 +00:00
Michael Zolotukhin fdfbab2baf Remove redundant includes from lib/Object.
llvm-svn: 320625
2017-12-13 21:30:55 +00:00
Rafael Espindola 25cbdf25a6 Convert the archive writer to use Error.
This found one place in lld that was not checking the error.

llvm-svn: 313937
2017-09-21 23:13:36 +00:00
Rui Ueyama 01d0265106 Simplify writeArchive return type.
writeArchive returned a pair, but the first element of the pair is always
its first argument on failure, so it doesn't make sense to return it from
the function. This patch change the return type so that it does't return it.

Differential Revision: https://reviews.llvm.org/D37313

llvm-svn: 312177
2017-08-30 22:11:03 +00:00
Martin Storsjo e1f120bbcb [COFF] Make the weak aliases optional
When creating an import library from lld, the cases with
Name != ExtName shouldn't end up as a weak alias, but as a real
export of the new name, which is what actually is exported from
the DLL.

This restores the behaviour of renamed exports to what it was in
4.0.

The other half of this commit, including test, goes into lld.

Differential Revision: https://reviews.llvm.org/D36633

llvm-svn: 310991
2017-08-16 05:22:49 +00:00
Martin Storsjo a238b20e23 [COFF] Add SymbolName as a distinct field in COFFImportFile
The previous Name and ExtName aren't enough to convey all the nuances
between weak aliases and stdcall decorated function names.

A test for this will be added in LLD.

Differential Revision: https://reviews.llvm.org/D36544

llvm-svn: 310988
2017-08-16 05:13:16 +00:00
Martin Storsjo 4a5764e3ca [llvm-dlltool] Write correct weak externals
Previously, the created object files for the import library were broken.
Write the symbol table before the string table. Simplify the code by
using a separate variable Prefix instead of duplicating a few lines.

Also update the coff-weak-exports to actually check that the generated
weak symbols can be found as intended.

Differential Revision: https://reviews.llvm.org/D36065

llvm-svn: 309555
2017-07-31 11:18:41 +00:00
Martin Storsjo b9ff4191a1 [COFF] ARM64 support for COFFImportFile
A test will be committed separately in the lld repo.

Differential Revision: https://reviews.llvm.org/D35766

llvm-svn: 308951
2017-07-25 06:05:49 +00:00
Saleem Abdulrasool 0f83a89414 Object: rename parameter from DLLName to ImportName
When I originally wrote this code, I neglected the fact that the import
library may be created for executables.  This name is not the name of
the DLL, but rather the name for the imported module.  It will be
embedded into the IAT/ILT reference.  Rename it to make it more obvious.
NFC.

llvm-svn: 308384
2017-07-18 22:11:01 +00:00
Martell Malone 1079ef8dfe llvm: add llvm-dlltool support to the archiver
A PE COFF spec compliant import library generator.
Intended to be used with mingw-w64.

Supports:
PE COFF spec (section 8, Import Library Format)
PE COFF spec (Aux Format 3: Weak Externals)

Reviewed By: ruiu
Differential Revision: https://reviews.llvm.org/D29892

This reapplies rL308329, which was reverted in rL308374

llvm-svn: 308379
2017-07-18 21:26:38 +00:00
Rui Ueyama 6db83a3af3 Revert r308329: llvm: add llvm-dlltool support to the archiver
This reverts commit r308329 because it broke buildbots.

llvm-svn: 308374
2017-07-18 21:07:13 +00:00
Martell Malone 9b6e9899f2 llvm: fix -Wcast gcc warn error from rL308329
llvm-svn: 308360
2017-07-18 20:58:21 +00:00
Martell Malone afe8549269 llvm: add llvm-dlltool support to the archiver
A PE COFF spec compliant import library generator.
Intended to be used with mingw-w64.

Supports:
PE COFF spec (section 8, Import Library Format)
PE COFF spec (Aux Format 3: Weak Externals)

Reviewed By: ruiu

Differential Revision: https://reviews.llvm.org/D29892

llvm-svn: 308329
2017-07-18 17:39:11 +00:00
Galina Kistanova 415ec9260f Fixed warning: dereferencing type-punned pointer will break strict-aliasing rules.
No need in reinterpret_cast<StringTableOffset &> here, as struct coff_symbol Name is a unin
with the member StringTableOffset Offset. This union member could be accessed directly.

llvm-svn: 305029
2017-06-08 23:35:52 +00:00
Reid Kleckner 146eb7a65f Re-land "COFF: migrate def parser from LLD to LLVM"
This reverts commit r304561 and re-lands r303490 & co.

The fix was to use "SymbolName" when translating LLD's internal export
list to lib/Object's short export struct. The SymbolName reflects the
actual symbol name, which may include fastcall and stdcall mangling bits
not included in the /EXPORT or .def file EXPORTS name:

@@ -434,8 +434,7 @@ std::vector<COFFShortExport> createCOFFShortExportFromConfig() {
   std::vector<COFFShortExport> Exports;
   for (Export &E1 : Config->Exports) {
     COFFShortExport E2;
-    E2.Name = E1.Name;
+    // Use SymbolName, which will have any stdcall or fastcall qualifiers.
+    E2.Name = E1.SymbolName;
     E2.ExtName = E1.ExtName;
     E2.Ordinal = E1.Ordinal;
     E2.Noname = E1.Noname;

llvm-svn: 304573
2017-06-02 17:53:06 +00:00
Reid Kleckner d249e4a188 Revert "COFF: migrate def parser from LLD to LLVM"
This reverts commits r303490, r303491, r303493, and r303494.

This caused http://crbug.com/728726. Essentially, exporting stdcall
functions doesn't appear to work after this change. Reduced test case
soon.

llvm-svn: 304561
2017-06-02 16:26:24 +00:00
Martell Malone d1a5d9eee5 COFF: Fix single StringRef return error
This should appease the lld build bot regression
Intrroduced by rL303490

llvm-svn: 303493
2017-05-20 21:00:36 +00:00
Martell Malone 375dc90ebf COFF: migrate def parser from LLD to LLVM [1/2]
This is split up into two commits.
The will create the DEF parser in LLVM.
Check the following commit to see the removal from LLD

Reviewers: ruiu

Differential Revision: https://reviews.llvm.org/D32689

llvm-svn: 303490
2017-05-20 19:56:29 +00:00