Commit Graph

2328 Commits

Author SHA1 Message Date
Fangrui Song 8048fe2b8c [ELF][MachO][wasm] Simplify range-style std::find{,_if} with STLExtras.h utilities. NFC
llvm-svn: 357269
2019-03-29 16:21:16 +00:00
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
Reid Kleckner 4dc0b1ac60 Fix clang -Wimplicit-fallthrough warnings across llvm, NFC
This patch should not introduce any behavior changes. It consists of
mostly one of two changes:
1. Replacing fall through comments with the LLVM_FALLTHROUGH macro
2. Inserting 'break' before falling through into a case block consisting
   of only 'break'.

We were already using this warning with GCC, but its warning behaves
slightly differently. In this patch, the following differences are
relevant:
1. GCC recognizes comments that say "fall through" as annotations, clang
   doesn't
2. GCC doesn't warn on "case N: foo(); default: break;", clang does
3. GCC doesn't warn when the case contains a switch, but falls through
   the outer case.

I will enable the warning separately in a follow-up patch so that it can
be cleanly reverted if necessary.

Reviewers: alexfh, rsmith, lattner, rtrieu, EricWF, bollu

Differential Revision: https://reviews.llvm.org/D53950

llvm-svn: 345882
2018-11-01 19:54:45 +00:00
Tom Stellard a6749135df MachO: Change getString16() back to inline function
This was accidentally changed in r341670.

llvm-svn: 341672
2018-09-07 15:51:52 +00:00
Tom Stellard 493f3bad3c MachO: Fix out-of-bounds memory access in getString16
Summary:
This fixes the following tests when gcc is compiled with gcc8:

lld :: mach-o/do-not-emit-unwind-fde-arm64.yaml
lld :: mach-o/eh-frame-relocs-arm64.yaml

llvm.org/PR38096

Reviewers: lhames, kledzik, javed.absar

Subscribers: kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D51547

llvm-svn: 341670
2018-09-07 15:42:01 +00:00
Sam Clegg 724c217393 Fix -DBUILD_SHARED_LIBS=1 build
This was broken in rL334466

llvm-svn: 334507
2018-06-12 14:51:18 +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
Fangrui Song c505e06134 Remove \brief commands from doxygen comments.
Summary: This is similar to D46290 D46320.

Reviewers: ruiu, grimar

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D46861

llvm-svn: 332372
2018-05-15 16:40:54 +00:00
Nicola Zaghen e7245b429b [lld] Update uses of DEBUG macro to LLVM_DEBUG.
The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM

Differential Revision: https://reviews.llvm.org/D44977

llvm-svn: 332351
2018-05-15 13:36:20 +00:00
Pavel Labath fe9922f8af Fix build broken by llvm r327486
llvm::DWARFFormParams moved to llvm::dwarf::FormParams.

llvm-svn: 327489
2018-03-14 09:57:52 +00:00
Fangrui Song ffac3ed341 [ELF] Fix IsPreemptible comment and typo. NFC
llvm-svn: 325963
2018-02-23 21:57:49 +00:00
Francis Visoiu Mistrih 5486d2472c [YAML] Fix mustQuote return type changed in r320996
llvm-svn: 320997
2017-12-18 17:49:27 +00:00
David Blaikie fd872e9637 MachONormalizedFile.h: Remove unimplemented function
dump had no definition, so op<< was never usable anyway - remove the
definition of the latter and the declaration of the former.

llvm-svn: 318880
2017-11-22 21:10:19 +00:00
David Blaikie c3d72c3cc5 Make some headers modular by adding missing includes/forward decls.
llvm-svn: 318718
2017-11-21 01:09:10 +00:00
Rafael Espindola 5f903f3848 Update for llvm change.
llvm-svn: 317657
2017-11-08 01:50:34 +00:00
Rafael Espindola f7a57294d7 Update for llvm change.
llvm-svn: 317650
2017-11-08 01:05:52 +00:00
NAKAMURA Takumi b6d3452243 lld: Prune unused libdeps.
llvm-svn: 315537
2017-10-12 00:04:24 +00:00
NAKAMURA Takumi d791eaa559 lld: Reorder libdeps.
Differential Revision: https://reviews.llvm.org/D38828

llvm-svn: 315529
2017-10-11 23:18:43 +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
Rui Ueyama ea65b5aa49 [MACH-O] Fix the ASM code generated for __stub_helpers section
Patch by Patricio Villalobos.

I discovered that lld for darwin is generating the wrong code for lazy
bindings in the __stub_helper section (at least for osx 10.12). This is
the way i can reproduce this problem, using this program:

  #include <stdio.h>

  int main(int argc, char **argv) {
      printf("C: printf!\n");
      puts("C: puts!\n");
      return 0;
  }

Then I link it using i have tested it in 3.9, 4.0 and 4.1 versions:

  $ clang -c hello.c
  $ lld -flavor darwin hello.o -o h1  -lc

When i execute the binary h1 the system gives me the following error:

  C: printf!
  dyld: lazy symbol binding failed:
  BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB
  has segment 4 which is too large (0..3)
  dyld: BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB has segment 4 which is too
  large (0..3)
  Trace/BPT trap: 5

Investigating the code, it seems that the problem is that the asm code
generated in the file StubPass.cpp, specifically in the line 323,when it
adds, what it seems an arbitrary number (12) to the offset into the lazy
bind opcodes section, but it should be calculated depending on the
MachONormalizedFileBinaryWrite::lazyBindingInfo result.

I confirmed this bug by patching the code manually in the binary and
writing the right offset in the asm code (__stub_helper).

This patch fixes the content of the atom that contains the assembly code
when the offset is known.

Differential Revision: https://reviews.llvm.org/D35387

llvm-svn: 311734
2017-08-24 23:51:40 +00:00
Tom Stellard 1d70d75f46 Fix ObjCPass on big-endian host
Summary:
This fixes test/mach-o/objc-image-info-pass-output.yaml on
big-endian hosts.

Reviewers: lhames, kledzik, ruiu

Reviewed By: ruiu

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D35052

llvm-svn: 308935
2017-07-24 23:13:31 +00:00
Kevin Enderby b4c351dfd1 lld matching change for llvm change r308690 to add error handling to
the dyld compact export entries in libObject.

llvm-svn: 308691
2017-07-20 23:09:19 +00:00
Tom Stellard a6b7efc7e3 [MachO] Add missing byte-swaps when reading dyld_info
Summary:
This fixes the following tests on big-endian hosts:

lld :: mach-o/dylib-install-names.yaml
lld :: mach-o/force_load-dylib.yaml
lld :: mach-o/lib-search-paths.yaml
lld :: mach-o/upward-dylib-load-command.yaml

Reviewers: lhames, kledzik, ruiu

Reviewed By: ruiu

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D35022

llvm-svn: 307405
2017-07-07 15:20:17 +00:00
Richard Smith 4451cb63fb Fix ODR violations due to abuse of LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR
This is a short-term fix for PR33650 aimed to get the modules build bots green again.

Remove all the places where we use the LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR
macros to try to locally specialize a global template for a global type. That's
not how C++ works.

Instead, we now centrally define how to format vectors of fundamental types and
of string (std::string and StringRef). We use flow formatting for the former
cases, since that's the obvious right thing to do; in the latter case, it's
less clear what the right choice is, but flow formatting is really bad for some
cases (due to very long strings), so we pick block formatting. (Many of the
cases that were using flow formatting for strings are improved by this change.)

Other than the flow -> block formatting change for some vectors of strings,
this should result in no functionality change.

Differential Revision: https://reviews.llvm.org/D34907

Corresponding LLVM change is r306878.

llvm-svn: 306880
2017-06-30 20:57:21 +00:00
Paul Robinson a22c98c030 Tweak to match change in LLVM API, in r306315.
llvm-svn: 306316
2017-06-26 18:43:26 +00:00
Galina Kistanova 0c10465a57 Added LLVM_FALLTHROUGH to address warning: this statement may fall through. NFC.
llvm-svn: 305145
2017-06-10 08:06:17 +00:00
Zachary Turner 264b5d9e88 Move Object format code to lib/BinaryFormat.
This creates a new library called BinaryFormat that has all of
the headers from llvm/Support containing structure and layout
definitions for various types of binary formats like dwarf, coff,
elf, etc as well as the code for identifying a file from its
magic.

Differential Revision: https://reviews.llvm.org/D33843

llvm-svn: 304864
2017-06-07 03:48:56 +00:00
Zachary Turner 3a57fbd6db [Support] Move Parallel algorithms from LLD to LLVM.
Differential Revision: https://reviews.llvm.org/D33024

llvm-svn: 302748
2017-05-11 00:03:52 +00:00
Zachary Turner 092c767745 [Core] Make parallel algorithms match C++ Parallelism TS.
Differential Revision: https://reviews.llvm.org/D33016

llvm-svn: 302613
2017-05-10 01:16:22 +00:00
Davide Italiano 0eb8030369 [MachO/X86_64] Simplify isDataInCodeTransition().
llvm-svn: 300385
2017-04-15 01:50:51 +00:00
Davide Italiano 2a34b6395f [MachO/AArch64] Merge multiple switch cases into one. NFCI.
llvm-svn: 300384
2017-04-15 01:42:55 +00:00
Eric Fiselier 87c87f4c30 [CMake] Fix pthread handling for out-of-tree builds
LLVM defines `PTHREAD_LIB` which is used by AddLLVM.cmake and various projects
to correctly link the threading library when needed. Unfortunately
`PTHREAD_LIB` is defined by LLVM's `config-ix.cmake` file which isn't installed
and therefore can't be used when configuring out-of-tree builds. This causes
such builds to fail since `pthread` isn't being correctly linked.

This patch attempts to fix that problem by renaming and exporting
`LLVM_PTHREAD_LIB` as part of`LLVMConfig.cmake`. I renamed `PTHREAD_LIB`
because It seemed likely to cause collisions with downstream users of
`LLVMConfig.cmake`.

llvm-svn: 294690
2017-02-10 01:59:20 +00:00
Pavel Labath c9fa114b28 [lld][cmake] Fix LLVM_LINK_LLVM_DYLIB build
Summary:
Lld's build had a couple of issues which prevented a successfull
LLVM_LINK_LLVM_DYLIB compilation.

- add_llvm_library vs llvm_add_library: One adds a library to libLLVM.so, other
  one doesn't. Lld was using the wrong one, causing symbols to be mupltiply
  defined in things linking to libLLVM.
- confusion when to use LINK_LIBS vs LINK_COMPONENTS in llvm_add_library
- not using LLVM_LINK_COMPONENTS for add_lld_tool

With these fixes lld compiles and it's test suite passes both in
LLVM_LINK_LLVM_DYLIB mode and without it.

Reviewers: ruiu, beanz

Subscribers: llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D28397

llvm-svn: 291432
2017-01-09 09:57:08 +00:00
Michal Gorny 906534fe4e Remove unnecessary llvm/Config/config.h includes
Remove the includes of <llvm/Config/config.h> private LLVM header.
The relevant files seem not to use any definitions from that file,
and it is not available when building against installed LLVM.

The use in lib/ReaderWriter/MachO/MachOLinkingContext.cpp originates
from rL218718, and the use in ELF/Strings.cpp from rL274804 (where it
was moved from Symbols.cpp). In both cases, they were added as a part of
demangling support, and they provided HAVE_CXXABI_H.

Since we are now using the LLVM demangler library instead, the code was
removed and the includes and no longer necessary.

Differential Revision: https://reviews.llvm.org/D27757

llvm-svn: 289707
2016-12-14 20:53:57 +00:00
Mehdi Amini 16e25c8d4c Fix wrong formatting in lld introduced in r286561 (NFC)
Pointed out by Davide.

llvm-svn: 286649
2016-11-11 22:28:19 +00:00
Greg Clayton a6ccd19035 Fix code to deal with recent LLVM changes.
https://reviews.llvm.org/D26526

llvm-svn: 286598
2016-11-11 16:23:47 +00:00
Mehdi Amini c1edf566b9 Prevent at compile time converting from Error::success() to Expected<T>
This would trigger an assertion at runtime otherwise.

Differential Revision: https://reviews.llvm.org/D26482

llvm-svn: 286562
2016-11-11 04:29:25 +00:00
Greg Clayton 9a134fc917 Fix build breakage on buildbots that was due to 285309.
llvm-svn: 285321
2016-10-27 17:43:39 +00:00
Eugene Zelenko 8329bfc63a Fix Clang-tidy readability-redundant-member-init warnings; other minor fixes
Differential revision: https://reviews.llvm.org/D25931

llvm-svn: 285086
2016-10-25 16:57:35 +00:00
Pavel Labath 407fd070b7 Adjust for TimePoint interface change in llvm: D25730. NFC
llvm-svn: 284965
2016-10-24 10:59:14 +00:00
Benjamin Kramer 3ad3f5033d Retire llvm::alignOf in favor of C++11 alignof.
No functionality change intended.

llvm-svn: 284734
2016-10-20 15:30:02 +00:00
Davide Italiano f6c1d2c158 [MachO] Factor out a fair amount of duplicated code. NFCI.
llvm-svn: 281260
2016-09-12 21:07:26 +00:00
Davide Italiano 35065193f1 [MachO] Remove code accidentally cut'n'pasted 3 times.
It wasn't harmful, just goofy. It's weird to see how this has
fallen through the crack without anybody noticing for so long.

llvm-svn: 281148
2016-09-10 20:41:26 +00:00
Rafael Espindola 5b0fb8f4d5 Fix shared library build.
llvm-svn: 280753
2016-09-06 21:06:55 +00:00
Rafael Espindola d1942133e8 Use the demangler in llvm.
llvm-svn: 280733
2016-09-06 19:17:14 +00:00
Duncan P. N. Exon Smith 9f71057d69 ReaderWriter: Use ilist_noalloc_traits for TrieEdge, NFC
Adopt r280128 in lld, specializing ilist_alloc_traits rather than
reinventing the wheel.

llvm-svn: 280566
2016-09-03 01:29:36 +00:00
Duncan P. N. Exon Smith c9e8bc191c ADT: Remove uses of ilist_*sentinel_traits, NFC
llvm-svn: 279458
2016-08-22 18:59:33 +00:00
Duncan P. N. Exon Smith 623c4c1572 MachO: Use ilist_half_embedded_sentinel_traits, NFC
Use ilist_half_embedded_sentinel_traits for the list of
lld::mach_o::normalized::TrieEdge, rather than duplicating the code.

llvm-svn: 278523
2016-08-12 16:25:04 +00:00
Pete Cooper ef5bea9dca Dead strip DESC bits should only be set on object files.
It only makes sense to set on N_NO_DEAD_STRIP on a relocatable object file.  Otherwise the bits aren't useful for anything.  Matches the ld64 behaviour.

llvm-svn: 278419
2016-08-11 21:27:18 +00:00
Pete Cooper 1ed8f1f6e5 Better compress lazy binding info to match ld64.
We should be using one of BIND_OPCODE_SET_DYLIB_SPECIAL_IMM, BIND_OPCODE_SET_DYLIB_ORDINAL_IMM,
and BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB depending on whether ordinals are <= 0, <= 15, > 15.

This matches the behaviour of ld64.

llvm-svn: 278407
2016-08-11 20:59:27 +00:00