Commit Graph

39 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
Fangrui Song ccfc8415c2 Set MAttrs in LTO mode
Summary: Without this patch, MAttrs are not set.

Patch by Yin Ma

Reviewers: espindola, MaskRay, ruiu, pcc

Reviewed By: MaskRay, pcc

Subscribers: pcc, emaste, sbc100, inglorion, arichardson, aheejin, steven_wu, llvm-commits

Differential Revision: https://reviews.llvm.org/D53446

llvm-svn: 345884
2018-11-01 20:02:49 +00:00
Ryan Prichard ed5bb932a2 Allow later -z name=<int> args to override earlier args
Summary:
lld already gives later -z options precedence in getZFlag().

This matches the behavior of ld.bfd and ld.gold, where later options
override earlier ones. (I tested with -z max-page-size and -z stack-size.)

Reviewers: ruiu, espindola, grimar

Reviewed By: ruiu, grimar

Subscribers: grimar, emaste, arichardson, llvm-commits

Differential Revision: https://reviews.llvm.org/D52526

llvm-svn: 343145
2018-09-26 20:50:39 +00:00
Nico Weber 5ffd8cedf4 lld-link: Also demangle undefined dllimported symbols.
dllimported symbols go through an import stub that's called __imp_ followed by
the name the stub points to. Make that work.

Differential Revision: https://reviews.llvm.org/D52145

llvm-svn: 342401
2018-09-17 16:31:20 +00:00
Nico Weber da15acbd68 lld-link: print demangled symbol names for "undefined symbol" diagnostics
For this, add a few toString() calls when printing the "undefined symbol"
diagnostics; toString() already does demangling on Windows hosts.

Also make lld::demangleMSVC() (called by toString(Symbol*)) call LLVM's
microsoftDemangle() instead of UnDecorateSymbolName() so that it works on
non-Windows hosts – this makes both updating tests easier and provides a better
user experience for people doing cross-links.

This doesn't yet do the right thing for symbols starting with __imp_, but that
can be improved in a follow-up.

Differential Revision: https://reviews.llvm.org/D52104

llvm-svn: 342332
2018-09-15 18:27:09 +00:00
Rui Ueyama 41831204c7 Rename a function to follow the LLVM coding style.
llvm-svn: 340716
2018-08-27 06:18:10 +00:00
Martin Storsjo 0f3d8e2360 [Common] Discard the temp file while keeping the memory mapping open, on errors
Differential Revision: https://reviews.llvm.org/D51095

llvm-svn: 340635
2018-08-24 18:36:42 +00:00
Nico Weber 386bf1216e win: Omit ".exe" from lld warning and error messages.
This is a minor follow-up to https://reviews.llvm.org/D49189. On Windows, lld
used to print "lld-link.exe: error: ...". Now it just prints "lld-link: error:
...". This matches what link.exe does (it prints "LINK : ...") and makes lld's
output less dependent on the host system.

https://reviews.llvm.org/D51133

llvm-svn: 340487
2018-08-22 23:52:13 +00:00
Sam Clegg b2144058a6 [LTO] Errors in LLVM backend should manifest as lld errors
Differential Revision: https://reviews.llvm.org/D48812

llvm-svn: 336143
2018-07-02 21:01:43 +00:00
Sam Clegg 3ad27e92bc Code cleanup in preparation for adding LTO for wasm. NFC.
- Move some common code into Common/rrorHandler.cpp and
  Common/Strings.h.
- Don't use `fatal` when incompatible bitcode files are
  encountered.
- Rename NameRef variable to just Name

See D47162

Differential Revision: https://reviews.llvm.org/D47206

llvm-svn: 333021
2018-05-22 20:20:25 +00:00
Fangrui Song 8d3fcb45e6 CommandFlags.def -> CommandFlags.inc, leftover after r329840
llvm-svn: 332951
2018-05-22 06:12:23 +00:00
Rui Ueyama 0dd56dcdd4 Handle --plugin-opt= options as alias options.
Previously, we had a loop to iterate over options starting with
`--plugin-opt=` and parse them by hand. But we can make OptTable
do that job for us.

Differential Revision: https://reviews.llvm.org/D47167

llvm-svn: 332935
2018-05-22 02:53:11 +00:00
David Blaikie ad191189f0 Rename to match an LLVM change
llvm-svn: 329841
2018-04-11 18:49:41 +00:00
Rui Ueyama 3fffe1f02d Make sure that clang-format doesn't reorder include files.
clang-format won't reorder include files if there is a blank line.
Thanks to Nico for the tips.

llvm-svn: 326371
2018-02-28 21:32:24 +00:00
Rui Ueyama 7440135e62 Attempt to build breakage caused by r326339.
clang-format automatically sorted the #include lines, but I believe
Windows.h needs to be included before Dbghelp.h.

llvm-svn: 326360
2018-02-28 20:11:33 +00:00
Rui Ueyama ee17371897 Merge {COFF,ELF}/Strings.cpp to Common/Strings.cpp.
This should resolve the issue that lld build fails in some hosts
that uses case-insensitive file system.

Differential Revision: https://reviews.llvm.org/D43788

llvm-svn: 326339
2018-02-28 17:38:19 +00:00
Rafael Espindola 3a730d8582 Pass CPU string to LTO pipeline.
Previously an empty CPU string was passed to the LTO engine which
resulted in a generic CPU for which certain features like NOPL were
disabled. This fixes that.

Patch by Pratik Bhatu!

llvm-svn: 323801
2018-01-30 18:18:59 +00:00
Rui Ueyama 4b7cf1601a Add a missing file header.
llvm-svn: 322909
2018-01-18 23:46:28 +00:00
Zachary Turner 727f153b6f [coff] Print detailed timing information with /TIME.
The classes used to print and update time information are in
common, so other linkers could use this as well if desired.

Differential Revision: https://reviews.llvm.org/D41915

llvm-svn: 322736
2018-01-17 19:16:26 +00:00
Rui Ueyama ab163a8e9b Add a missing build dependency.
Patch by Chen-Pang He.

llvm-svn: 320754
2017-12-14 22:31:29 +00:00
Sam Clegg 77c1def71a Use ErrorOS for log messages as well as error
log are also diagnostics so it seems like they should to
the same place as errors and debug messages.

Without this change when I enable --verbose those messages
go to stdout, but when I enable "-mllvm -debug" those messages
go to stderr (because dbgs() goes to stderr by default).

So I end up having to do this a lot:
 lld <args> > output_message 2>&1

Differential Revision: https://reviews.llvm.org/D41033

llvm-svn: 320427
2017-12-11 21:57:31 +00:00
Sam Clegg 7e7566323d toString function take a const refs where possible
Differential Revision: https://reviews.llvm.org/D40824

llvm-svn: 319787
2017-12-05 16:50:46 +00:00
Rui Ueyama 2017d52b54 Move Memory.{h,cpp} to Common.
Differential Revision: https://reviews.llvm.org/D40571

llvm-svn: 319221
2017-11-28 20:39:17 +00:00
Rui Ueyama 28c65bc20b Fix formatting.
llvm-svn: 319212
2017-11-28 20:01:30 +00:00
Rui Ueyama 3e03944f02 Factor out more code to Common/Args.cpp.
Differential Revision: https://reviews.llvm.org/D40540

llvm-svn: 319211
2017-11-28 19:58:45 +00:00
Martin Storsjo 2d614ced55 Fix shared library builds of lld, broken in SVN r319138
llvm-svn: 319152
2017-11-28 08:12:03 +00:00
Rui Ueyama 53fe469162 Factor out common code to Common/Strings.cpp.
Differential Revision: https://reviews.llvm.org/D40530

llvm-svn: 319138
2017-11-28 02:15:26 +00:00
David Blaikie 265a03775e Fix for file renaming in LLVM (CommandFlags.h -> CommandFlags.def)
llvm-svn: 319084
2017-11-27 19:54:06 +00:00
Rafael Espindola a4884cc38f Try harder to delete the temporary file.
It is really hard to cover restarts in a debugger, SIGKILL or power
failures. I will try to handle them in a followup patch, but it will
not support all the systems lld has to run on.

RemoveFileOnSignal takes care of crashes.

So what is left is making sure all regular exits delete the file. This
patch does that by moving the buffer to error handling. That is a bit
of a hack, but seemed better than to generalize it to take a callback on
construction.

I will implement this on COFF on the next patch.

llvm-svn: 318060
2017-11-13 18:06:43 +00:00
Rafael Espindola 37a575f8b6 Delete dead code.
llvm-svn: 317633
2017-11-07 23:12:41 +00:00
Rui Ueyama 3fa55c5026 Instead of enclosing an entire file, add lld:: specifier for public functions.
llvm-svn: 316776
2017-10-27 18:04:49 +00:00
Bob Haarman b8a59c8aa5 [lld] unified COFF and ELF error handling on new Common/ErrorHandler
Summary:
The COFF linker and the ELF linker have long had similar but separate
Error.h and Error.cpp files to implement error handling. This change
introduces new error handling code in Common/ErrorHandler.h, changes the
COFF and ELF linkers to use it, and removes the old, separate
implementations.

Reviewers: ruiu

Reviewed By: ruiu

Subscribers: smeenai, jyknight, emaste, sdardis, nemanjai, nhaehnle, mgorny, javed.absar, kbarton, fedor.sergeev, llvm-commits

Differential Revision: https://reviews.llvm.org/D39259

llvm-svn: 316624
2017-10-25 22:28:38 +00:00
Alexander Richardson c95c2be081 Fix shared build of liblldCommon.so on Linux
llvm-svn: 315988
2017-10-17 10:39:27 +00:00
Rafael Espindola 30ae556319 Fix build.
llvm-svn: 315732
2017-10-13 18:57:30 +00:00
Bob Haarman 4f5c8c29ac [lld] Move Threads to Common
Summary:
This will allow using the functionality from other linkers. It is also
a prerequisite for sharing the error logging code.

Reviewers: ruiu

Reviewed By: ruiu

Subscribers: emaste, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D38822

llvm-svn: 315725
2017-10-13 18:22:55 +00:00
NAKAMURA Takumi 60ee7e302a lldCommon depends on intrinsics_gen, due to llvm/CodeGen/CommandFlags.h
llvm-svn: 314759
2017-10-03 04:18:46 +00:00
Rui Ueyama 33b31a7cbb Fix the shared library build.
llvm-svn: 314725
2017-10-02 21:32:51 +00:00
Rui Ueyama a37b587f4a Attempt to fix buildbots.
llvm-svn: 314724
2017-10-02 21:21:36 +00:00
Rui Ueyama 3f851704c1 Move new lld's code to Common subdirectory.
New lld's files are spread under lib subdirectory, and it isn't easy
to find which files are actually maintained. This patch moves maintained
files to Common subdirectory.

Differential Revision: https://reviews.llvm.org/D37645

llvm-svn: 314719
2017-10-02 21:00:41 +00:00