45 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
Brian Gesiak b9f7f4b87c [Darwin] Use errorHandler from liblldCommon
Summary:
Error handling in liblldCore and the Darwin toolchain prints to an
output stream. A TODO in the project explained that a diagnostics
interface resembling Clang's should be added.

For now, the simple diagnostics interface defined in liblldCommon seems
like an improvement. It prints colors when they're available, uses locks
for thread-safety, and abstracts away the `"error: "` and newline
literal strings that litter the Darwin toolchain code.

To use the liblldCommon error handler, a link dependency is added to
the liblldDriver library.

Test Plan:
1. check-lld
2. Invoke `ld64.lld -r` in a terminal that supports color output.
   Confirm that "ld64.lld: error: -arch not specified and could not be inferred"
   is output, and that the "error:" is colored red!

Reviewers: ruiu, smeenai

Reviewed By: ruiu

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D47998

llvm-svn: 334466
2018-06-12 02:34:04 +00:00
Eugene Zelenko e568b91510 Fix some Clang-tidy modernize-use-default and Include What You Use warnings; other minor fixes.
Differential revision: https://reviews.llvm.org/D26293

llvm-svn: 286000
2016-11-04 17:39:46 +00:00
Pete Cooper fefbd22814 Convert lld file writing to llvm::Error. NFC.
This converts the writeFile method, as well as some of the ones it calls
in the normalized binary file writer and yaml writer.

llvm-svn: 264961
2016-03-30 23:10:39 +00:00
Rui Ueyama 52968b58f5 Use C++11 initializers for data members.
llvm-svn: 262447
2016-03-02 01:49:27 +00:00
Rui Ueyama 0c8fad7dba Remove more dead code.
llvm-svn: 262445
2016-03-02 01:34:36 +00:00
Rui Ueyama 0c23bcb252 Remove default implementations that are always overridden by subclasses.
llvm-svn: 262444
2016-03-02 01:34:34 +00:00
Rui Ueyama be5e0b07ca Remove dead code for ELF.
llvm-svn: 262195
2016-02-28 21:59:02 +00:00
Rui Ueyama 701c3250e5 Remove remaining code for COFF.
llvm-svn: 262193
2016-02-28 21:22:40 +00:00
Pete Cooper f0c0f3c477 Add File::kind's for all subclasses of File.
This is to enable isa<> support for any files which need it.

It will be used in an upcoming patch to differentiate MachOFile from other implicitly generated files.

Reviewed by Lang Hames.

Differential Revision: http://reviews.llvm.org/D16103

llvm-svn: 257830
2016-01-14 22:55:38 +00:00
Davide Italiano b63c9c32dc Reapply r234378, with test fixed (by emaste).
Hopefully this time the build won't be broken.

llvm-svn: 234553
2015-04-10 01:40:25 +00:00
Rui Ueyama e3efa415de Revert "Allow undefined symbols in shared library by default."
This reverts commit r234378 because it broke buildbots.

llvm-svn: 234414
2015-04-08 16:55:03 +00:00
Davide Italiano 0e6a264673 Allow undefined symbols in shared library by default.
It's not our business to resolve those undefined symbols.
We just trust the linker will load the library and its dependencies
correctly, which is actually what happens, modulo bugs in the dynamic
linker itself.

PR:		23035
Differential Revision:	http://reviews.llvm.org/D8886

llvm-svn: 234378
2015-04-08 01:00:19 +00:00
Simon Atanasyan c437888f5a Replace the createImplicitFiles method return type with void
All instances of the `createImplicitFiles` always return `true` and this
return value is used nowhere.

llvm-svn: 234205
2015-04-06 20:43:35 +00:00
Shankar Easwaran 8f1b2d0930 [Core] Remove roundTripPass() function.
Use the environment variable "LLD_RUN_ROUNDTRIP_TEST" in the test that you want
to disable, as

RUN: env LLD_RUN_ROUNDTRIP_TEST= <run>

This was a patch that I made, but I find this a better way to accomplish what we
want to do.

llvm-svn: 228376
2015-02-06 04:15:02 +00:00
Greg Fitzgerald 4b6a7e355b Fix five of the shared library build targets
Before this patch there was a cyclic dependency between lldCore and
lldReaderWriter.  Only lldConfig could be built as a shared library.

* Moved Reader and Writer base classes into lldCore.
* The following shared libraries can now be built:
     lldCore
     lldYAML
     lldNative
     lldPasses
     lldReaderWriter

Differential Revision: http://reviews.llvm.org/D7105

From: Greg Fitzgerald <garious@gmail.com>
llvm-svn: 226732
2015-01-21 22:54:56 +00:00
Shankar Easwaran 7a64ec24d6 [Core] Remove function to not override RoundTripPasses.
RoundTripPasses should always be called in DEBUG mode if the environment
variable "LLD_RUN_ROUNDTRIP_TEST" is set.

Flavors should not be able to override this behavior.

llvm-svn: 223073
2014-12-01 20:28:54 +00:00
Shankar Easwaran 2895527ec2 [Core] Add flag to check if RoundTripPasses need to be run.
This would allow other flavor specific contexts to override the default value,
if they want to optionally run the round trip passes.

There is some information lost like the original file owner of the atom with
RoundTripPasses. The Gnu flavor needs this information inorder to implement
LinkerScript matching and for other diagnostic outputs such as Map files.

The flag also can be used to record information in the Atom if the information
to the Writer needs to be conveyed through References too.

llvm-svn: 222983
2014-12-01 01:04:11 +00:00
Nick Kledzik 22c9073ada Add MachOLinkingContext parameter to MachOFileNode constructor.
No functionality change.  This removes a down-cast from LinkingContext to
MachOLinkingContext.

Also, remove const from LinkingContext::createImplicitFiles() to remove
the need for another const cast.  Seems reasonable for createImplicitFiles()
to need to modify the context (MachOLinkingContext does).

llvm-svn: 218796
2014-10-01 20:24:30 +00:00
Rafael Espindola b1a4d3a26c Don't import error_code into the lld namespace.
llvm-svn: 210785
2014-06-12 14:53:47 +00:00
Rui Ueyama e05d380486 Move Simple.h and Alias.h to include/Core.
Because the files in Core actually depend on these files.

Differential Revision: http://reviews.llvm.org/D4000

llvm-svn: 210710
2014-06-11 21:47:51 +00:00
Rui Ueyama ba46cdb21f Move alias symbols from ELFLinkingContext to LinkingContext.
Alias symbols are SimpleDefinedAtoms and are platform neutral. They
don't have to belong ELF. This patch is to make it available to all
platforms. No functionality change intended.

Differential Revision: http://reviews.llvm.org/D3862

llvm-svn: 209475
2014-05-22 21:37:56 +00:00
Rui Ueyama 328da5527e Simplify nullptr check.
llvm-svn: 209357
2014-05-22 00:36:36 +00:00
Rui Ueyama 19173a39d3 Don't use "auto" where the actual type is not obvious.
llvm-svn: 207875
2014-05-02 21:48:01 +00:00
Rui Ueyama eb4b54349d Move nextFile() from LinkingContext to InputGraph.
LinkingContext and InputGraph are unnecessarily entangled. Most linker
input file data, e.g. the vector containing input files, the next index
of the input file, etc. are managed by InputGraph, but only the current
input file is for no obvious reason managed by LinkingContext.

This patch is to move code from LinkingContext to InputGraph to fix it.
It's now clear who's reponsible for managing input file state, which is
InputGraph, and LinkingContext is now free from that responsibility.
It improves the readability as we now have fewer dependencies between
classes. No functionality change.

Differential Revision: http://llvm-reviews.chandlerc.com/D3259

llvm-svn: 205394
2014-04-02 05:03:40 +00:00