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772 Commits

Author SHA1 Message Date
Rui Ueyama b33e8bcef8 [WinLink][Driver] Handle file extensions and defualt output file name. 
llvm-svn: 182912
 2013-05-30 06:00:10 +00:00
Shankar Easwaran a5008e3a63 [lld][elf] Add --dynamic-linker option to the ELF linker. 
Users can override the default value of the dynamic linker to be set to the
one that appears in the command line. The path can even be empty!. 

Added a test for the option.

llvm-svn: 182889
 2013-05-29 22:51:01 +00:00
Rui Ueyama 81247063bf [WinLink] Add -subsystem and -out command line option parsing. 
The code to actually consume these flags will be added soon.

llvm-svn: 182824
 2013-05-29 05:07:49 +00:00
Michael J. Spencer 20cd8b6114 Parallel write. 
llvm-svn: 182795
 2013-05-28 19:09:56 +00:00
Michael J. Spencer 5b904eccad [Core] Add parallel_for_each. 
llvm-svn: 182794
 2013-05-28 19:09:39 +00:00
Michael J. Spencer 9ae1408556 [ELF] Make addressOfAtom thread safe. 
The expression _atomToAddressMap[atom] may modify _atomToAddressMap.

llvm-svn: 182793
 2013-05-28 19:09:25 +00:00
Michael J. Spencer 0d9d3110c7 [Passes] Parallelize the layout pass sort. 
llvm-svn: 182792
 2013-05-28 19:03:29 +00:00
Michael J. Spencer bd66d04f34 Instrument things. 
llvm-svn: 182789
 2013-05-28 18:55:39 +00:00
Michael J. Spencer 427354ee21 [ELF][Reader] Kind in this context refers to File::Kind. Qualify with Reference::Kind. 
llvm-svn: 182787
 2013-05-28 18:43:17 +00:00
Michael J. Spencer e5b8fe1274 [Driver] Parallelize reading initial object files. 
llvm-svn: 182786
 2013-05-28 18:37:39 +00:00
Rui Ueyama 9e56839a83 [lld][PECOFF] Add WinLinkDriver and PECOFFTargetInfo. 
Add WinLinkDriver and connect it to the existing COFF reader. Remaining
parts are still stubs, so while it can now read a COFF file, it still
cannot link or output PE/COFF files yet.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D865

llvm-svn: 182784
 2013-05-28 18:13:31 +00:00
Rui Ueyama 4cf437a1e9 [PECOFF] Skip section names in the symbol table because they are not atoms. 
llvm-svn: 182721
 2013-05-26 23:09:01 +00:00
Rui Ueyama 37645e5953 Remove unreachable statement. 
llvm-svn: 182714
 2013-05-26 01:25:39 +00:00
Rui Ueyama f52a930cfb Fix indentation. 
llvm-svn: 182709
 2013-05-25 04:59:32 +00:00
Michael J. Spencer e24b872188 Use new version of countLeadingZeros. 
llvm-svn: 182697
 2013-05-25 00:25:21 +00:00
Rui Ueyama 25c208c020 [lld][LayoutPass] Add comment on _followOn{Nexts,Roots}. 
Reviewers: shankarke

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D847

llvm-svn: 182595
 2013-05-23 17:43:39 +00:00
Rui Ueyama 9c4f89ad2d [lld][LayoutPass] Consolidate debug flags, removing "layout" flag. 
DEBUG_TYPE is already defined at the beginning of this file. We don't
want to have two different debug flags for a single pass.

Reviewers: shankarke

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D845

llvm-svn: 182543
 2013-05-23 01:31:25 +00:00
Rui Ueyama 972b0d3b0c [lld] Fix wrong content permission bit. 
Summary: "W" bit value was not consistent in ContentPermissions enum. It should always be 2.

Reviewers: kledzik

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D810

llvm-svn: 182515
 2013-05-22 21:13:21 +00:00
Shankar Easwaran d8da989e78 [lld][LayoutPass] An earlier commit moved the functionality so that Atoms would 
be laid out by their ordinal overrides first, there was a bug that two atoms may 
get the same override index due to which atoms were not ordered properly. This
commit fixes the problem.

Now the atoms are ordered by 

- Section Position hints
- Atom override (Using layout-after/layout-before/in-group)
- Content Permissions
- Content Type
- File Ordinal

This also fixes the problem of running c++ static executables that 
was broken by an earlier patch.

llvm-svn: 182494
 2013-05-22 17:41:04 +00:00
Shankar Easwaran 4df05caadb [lld][ELF] Inline header files into the one file using it 
llvm-svn: 182427
 2013-05-21 21:47:33 +00:00
Rui Ueyama 0e171fe3c4 [lld] Update a test file for r180209. 
This binary file is created from shared.c.

llvm-svn: 182410
 2013-05-21 20:05:55 +00:00
Shankar Easwaran 87a594835f [lld][ELF][x86_64,hexagon] Changed dynamic atoms to live in anonymous namespace 
so that their names are hidden.

This addresses comments raised by Sean/Rafael.

llvm-svn: 182230
 2013-05-20 03:57:01 +00:00
Shankar Easwaran 9af77a2cab [lld][ELF][All Archs] Addend is used by dynamic relocations 
only if they are relative. This removes the FIXME when the
relocations are being emitted and checks if the relocation
is relative and only then populates the addend information.

I couldnt add a testcase for this as llvm-readobj lacks     
functionality of printing dynamic relocations.              

When the functionality is added, remove the commented lines
from elf/ifunc.test to test functionality.

llvm-svn: 182077
 2013-05-17 05:10:30 +00:00
Shankar Easwaran f9a7933d90 [lld][ELF][X86_64] Reorganize X86_64 Target specific code 
This patch splits X86_64Target specific code so that 
the dynamic atoms and the Relocation handlers are in seperate 
files for easier maintenace. The files are sure to grow and this 
makes it easier to work with.

* There is no change in functionality *

llvm-svn: 182076
 2013-05-17 04:19:53 +00:00
Rui Ueyama d819aa5c54 [lld] Do not create a temporary pair. 
llvm-svn: 182033
 2013-05-16 17:58:14 +00:00
Rui Ueyama bd314482e1 [lld] Fix inconsistent style and do cleanup. 
llvm-svn: 182031
 2013-05-16 17:53:34 +00:00
Rui Ueyama 5f689e24de [lld] Fix compiler warning that shift count is too big on P64. 
llvm-svn: 181852
 2013-05-14 23:51:50 +00:00
Rui Ueyama fe81cf8f91 [lld] Allow flags other than -std= in CMAKE_CXX_FLAGS. Also simplify the IF conditions. 
llvm-svn: 181822
 2013-05-14 19:53:41 +00:00
Rui Ueyama 0196d1062f [lld][LayoutPass] Cleanup: replace (*atom).size() with atom->size(). 
llvm-svn: 181804
 2013-05-14 16:53:59 +00:00
Rui Ueyama 5ec6d1a9cd [lld][LayoutPass] Fix a bug that caused buildbot to fail on some platforms. 
llvm-svn: 181752
 2013-05-14 01:51:56 +00:00
Rui Ueyama ca8ca55b52 [lld][LayoutPass] Split buildFollowOnTable for readability. 
Summary:
Split buildFollowOnTable to small functions to improve
code readability and remove code duplication. No change
in functionality.

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D790

llvm-svn: 181749
 2013-05-14 00:41:52 +00:00
Rui Ueyama deb979bf7a [lld] Add help text for -flavor option. 
llvm-svn: 181655
 2013-05-11 01:24:38 +00:00
Rui Ueyama 0227be6b0e [lld] Fix typo in document. 
llvm-svn: 181652
 2013-05-11 00:26:26 +00:00
Rui Ueyama eaadec3a39 [lld] Document about how to enable debug output. 
llvm-svn: 181640
 2013-05-10 22:19:28 +00:00
Shankar Easwaran bd525a3f63 [lld][ELF] set ordinals for mergeAtoms and fix testcase 
llvm-svn: 181622
 2013-05-10 18:52:29 +00:00
Shankar Easwaran 3c5d2c8a24 [lld][LayoutPass] This commit fixes a problem in the 
Layoutpass by ordering atoms if they appear in the override
list first and then looking at the way of ordering atoms in
the default way.

The fix also fixes issues with the sizes of the sections,
that appear in the output properly too.

The commit also adds a testcase(orderatoms-by-override.test)
to test it and fixes all the other relevant testcases.

llvm-svn: 181605
 2013-05-10 16:44:02 +00:00
Rui Ueyama eb6b6e4857 [lld] Fix broken test. -layout-pass option does not exist. 
Also shuffle the atoms so that it can verify the layout pass
actually changed the layout.

llvm-svn: 181573
 2013-05-10 00:50:33 +00:00
Rui Ueyama 4689326d4c [lld] Fix wrong comment. 
llvm-svn: 181547
 2013-05-09 21:14:02 +00:00
Rui Ueyama 90b3b92a8b [lld] Use range based for loop instead of explicit iterators (no functionality change) 
llvm-svn: 181503
 2013-05-09 04:00:44 +00:00
Rui Ueyama 60f5f30687 [lld] Add comments to InputFiles::searchLibraries() arguments. 
llvm-svn: 181492
 2013-05-08 23:54:10 +00:00
Rui Ueyama 980e52d7ae [lld][Core] Fix latch synchronization bug. 
We need to acquire a lock before signal a condition.
Otherwise threads waiting on a condition variable can
miss a signal.

Consider two threads: Thread A executing dec() and thread
B executing sync(). The initial value of _count is 1. If
these two threads are interleaved in the following order,
thread B misses the signal sent by thread A, because at the
time thread A sends a signal, B is not waiting for it.

  Thread A                 |   Thread B
                           |   std::unique_lock<std::mutex> lock(_condMut);
                           |   while (!(_count == 0)) {
  if (--_count == 0)       |
    _cond_notify_all()     |
                           |     _cond.wait();
                           |   }

Note that "wait(lock, pred)" is equivalent to "while(!pred())
wait(lock)", so I expanded it in the above example.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D764

llvm-svn: 181484
 2013-05-08 23:29:24 +00:00
Rui Ueyama ec504cfffd [lld] Add "explicit" to constructors where appropriate. 
Summary:
Add the explicit keyword to one-parameter
constructors to prevent unintended type conversions.

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D765

llvm-svn: 181483
 2013-05-08 23:20:53 +00:00
Nick Kledzik 80d8308b57 Use anonymous namespace for local classes. Patch by Rui Ueyama 
llvm-svn: 181473
 2013-05-08 21:34:11 +00:00
Shankar Easwaran e796006333 [lld][ELF] fix build failure 
llvm-svn: 181325
 2013-05-07 15:27:02 +00:00
Shankar Easwaran 790ede43de [lld][ELF] split ELF reader into multiple functions for readability (no change in functionality) 
llvm-svn: 181288
 2013-05-07 04:58:09 +00:00
Michael J. Spencer 75ed350132 [ELF] Initialize readers and writers on creation. 
This makes the target handler a constructor argument because the constructor of
OutputELFWriter relies on it being initialized.

llvm-svn: 181280
 2013-05-07 00:28:07 +00:00
Michael J. Spencer b5fb0dee0c [Core] Properly stop the ThreadPoolExecutor and use the ConcRT memory allocator. 
llvm-svn: 181279
 2013-05-07 00:27:40 +00:00
Shankar Easwaran c8858b3469 [lld]remove lld-core 
llvm-svn: 181244
 2013-05-06 20:24:39 +00:00
Tim Northover d11e5bc03c [lld][ELF] fix header comment typos 
llvm-svn: 181188
 2013-05-06 08:31:58 +00:00
Shankar Easwaran 6e1f5b7d1a [lld][ELF] reduce the number of symbols emitted in the symbol table 
llvm-svn: 180872
 2013-05-01 19:36:38 +00:00
Shankar Easwaran 02078464e1 [lld][ELF] continue on finding a section with no symbols, tests already present 
llvm-svn: 180769
 2013-04-30 03:14:01 +00:00
Shankar Easwaran cc06891c42 [lld][ELF] (no testable functionality change) resize the number of entries in the string table for static linking 
llvm-svn: 180692
 2013-04-29 04:10:42 +00:00
Shankar Easwaran d846d9852e [lld][ELF] (no testable functionality change) resize the number of entries in the string table for static linking 
llvm-svn: 180691
 2013-04-29 04:10:11 +00:00
Shankar Easwaran 45a5f93517 [lld][LayoutPass] initialize the number of entries for the densehash (no functionality change) 
llvm-svn: 180690
 2013-04-29 03:27:57 +00:00
Michael J. Spencer 9d70cef481 [Core] Allow weak symbols in shared library when linking. 
Patch by Rui Ueyama.

llvm-svn: 180209
 2013-04-24 19:00:26 +00:00
Andy Gibbs 93383381d7 Distinguish between unsupported and unrecognised flavours. 
Suggested by Nick Kledzik in reference to r179590.

llvm-svn: 179617
 2013-04-16 19:24:13 +00:00
Andy Gibbs bab932b850 Moved llvm_unreachable out of switch blocks to avoid the "control reaches end of non-void function" warning. 
llvm-svn: 179590
 2013-04-16 11:52:34 +00:00
Michael J. Spencer 1eb3b89d92 [Core] Add parallel infrastructure to lld. 
Uses ConcRT and PPL on Windows.

llvm-svn: 179397
 2013-04-12 18:40:39 +00:00
Nico Rieck bdfd4eb223 Replace elf-dump with llvm-readobj in lld tests 
llvm-svn: 179364
 2013-04-12 04:29:01 +00:00
Shankar Easwaran bba9fe8495 [test] missing underscore while checking for test output 
llvm-svn: 179264
 2013-04-11 04:20:21 +00:00
Shankar Easwaran 4cb24b38f6 [test] fix failing test, the test was not accounting for - in the path 
llvm-svn: 179260
 2013-04-11 04:08:11 +00:00
Shankar Easwaran eeee23e60a This adds functionality for undefined atoms from dynamic libraries to be added 
to the list of undefined atoms. 

The processing of undefined atoms from dynamic libraries is controlled by
use-shlib-undefines command line option. 

This patch also adds additional command line arguments to allow/disallow
unresolved symbols from shared libraries and mimics GNU ld behavior.

llvm-svn: 179257
 2013-04-11 02:56:30 +00:00
Michael J. Spencer d4eb47c110 Add VTune as an optional external dependency and add task tracking. 
llvm-svn: 178940
 2013-04-06 00:56:40 +00:00
Michael J. Spencer e6d5609de4 Revert "Correctly pass ownership of MemoryBuffers." 
llvm-svn: 178918
 2013-04-05 22:04:44 +00:00
Michael J. Spencer ce1e53e19c Correctly pass ownership of MemoryBuffers. 
llvm-svn: 178914
 2013-04-05 21:08:30 +00:00
Michael J. Spencer 096ea03f31 Fix uninitialized variables. Found by ubsan. 
llvm-svn: 178913
 2013-04-05 21:07:44 +00:00
Shankar Easwaran f4a5e2f439 [ELF][test] add dynamic library search 
llvm-svn: 178840
 2013-04-05 04:34:57 +00:00
Shankar Easwaran a4323a5cca This fixes a SIGSEGV failure in ReaderArchive while trying to trace what 
InputFile is being pulled from the Archive library to resolve a symbol. 

The buffer which was being used was already being handed over to the
MemoryBuffer object and was being accessed after the hand over. 

Moving it before the buffer is handed over.

llvm-svn: 178838
 2013-04-05 03:50:15 +00:00
Shankar Easwaran 831b4a0503 [test] remove printing the file to stdout 
llvm-svn: 178817
 2013-04-04 23:53:46 +00:00
Shankar Easwaran d953d66ee9 [ELF] fix atom order 
llvm-svn: 178815
 2013-04-04 23:51:36 +00:00
Michael J. Spencer dfe85483d5 [Driver] Fix symlinked universal driver behavior and add a test. 
llvm-svn: 178798
 2013-04-04 22:04:16 +00:00
Nick Kledzik 563d9dc1b2 temp change to test case to debug buildbot failure 
llvm-svn: 178788
 2013-04-04 20:34:37 +00:00
Nick Kledzik f4fa8c0a75 fix DEBUG_WITH_TYPE to build without warnings in non-debug builds 
llvm-svn: 178787
 2013-04-04 20:32:18 +00:00
Michael J. Spencer 3ab4db67f7 Fix MSVC build. 
llvm-svn: 178781
 2013-04-04 19:45:34 +00:00
Nick Kledzik be7b005d83 fix darwin driver to validate command line options 
llvm-svn: 178778
 2013-04-04 19:26:14 +00:00
Nick Kledzik 9a632dbe0c fix command line option to use -o 
llvm-svn: 178777
 2013-04-04 19:17:58 +00:00
Nick Kledzik c314b46e71 This is my Driver refactoring patch. 
The major changes are:
1) LinkerOptions has been merged into TargetInfo
2) LinkerInvocation has been merged into Driver
3) Drivers no longer convert arguments into an intermediate (core) argument 
   list, but instead create a TargetInfo object and call setter methods on 
   it. This is only how in-process linking would work. That is, you can 
   programmatically set up a TargetInfo object which controls the linking.
4) Lots of tweaks to test suite to work with driver changes
5) Add the DarwinDriver
6) I heavily doxygen commented TargetInfo.h

Things to do after this patch is committed:
a) Consider renaming TargetInfo, given its new roll. 
b) Consider pulling the list of input files out of TargetInfo. This will 
   enable in-process clients to create one TargetInfo the re-use it with 
   different input file lists.
c) Work out a way for Drivers to format the warnings and error done in 
   core linking.

llvm-svn: 178776
 2013-04-04 18:59:24 +00:00
Rafael Espindola 26cf0b5130 Update for API change for handling mips64el. 
llvm-svn: 178695
 2013-04-03 21:03:19 +00:00
Rafael Espindola 13de1566d0 Update the lld testsuite for the llvm-readobj format change. 
llvm-svn: 178693
 2013-04-03 20:53:45 +00:00
Shankar Easwaran 34353270a0 [ELF][Hexagon] fix few relocations and add test 
llvm-svn: 178495
 2013-04-01 20:20:11 +00:00
Shankar Easwaran 1d9e531856 [ELF][Hexagon] Create .got.plt entries with the appropriate alignment 
llvm-svn: 178467
 2013-04-01 15:14:34 +00:00
Shankar Easwaran cbe06ca340 [ELF] Set the symbol type for undefined atoms properly 
llvm-svn: 178466
 2013-04-01 15:12:54 +00:00
Shankar Easwaran bb9d4a5ca0 [ELF] Add dynamic hash table and get simple dynamic libraries working with Hexagon 
llvm-svn: 178323
 2013-03-29 00:53:25 +00:00
Michael J. Spencer 8759beb424 [ELF] Cache contentType and permissions. 
llvm-svn: 178269
 2013-03-28 18:58:50 +00:00
Michael J. Spencer 1067ff61e6 [Driver] Don't open files multiple times. 
llvm-svn: 178268
 2013-03-28 18:58:35 +00:00
Shankar Easwaran c3048de5ac [ELF][Hexagon] remove duplicated code 
llvm-svn: 178027
 2013-03-26 15:06:52 +00:00
Shankar Easwaran 7404004a4c [ELF][Hexagon] Fixing failing test on Bots, few symbol names are available only in debug builds, dont check the symbol names 
llvm-svn: 177991
 2013-03-26 04:01:26 +00:00
Shankar Easwaran 14bfcd3e0f [ELF] no change in functionality, add functions to symbol table so that they can be overridden by derived classes 
llvm-svn: 177990
 2013-03-26 03:53:33 +00:00
Shankar Easwaran 499aa9e028 [ELF][Hexagon] add GOTREL/GOT relocations 
llvm-svn: 177970
 2013-03-26 02:20:56 +00:00
Shankar Easwaran 1af701ec6a [ELF] order rela.dyn/rela.plt properly 
llvm-svn: 177969
 2013-03-26 02:20:08 +00:00
Shankar Easwaran aec2165123 [ELF] fix dynamic symbol table entries and update tests 
llvm-svn: 177875
 2013-03-25 16:41:14 +00:00
Shankar Easwaran 71738cafe6 [ELF][Hexagon][test] check .got.plt order 
llvm-svn: 177604
 2013-03-20 23:39:43 +00:00
Shankar Easwaran 0fa1b3c86a [X86_64][test] check that interp section is not emitted when building dynamic libraries 
llvm-svn: 177603
 2013-03-20 23:34:36 +00:00
Michael J. Spencer 67f25272f1 [SymbolTable][Perf] Use hash_combine instead of a custom hash, also use memcmp. 
ArrayRef<uint8_t>::equals(); lowers to a byte compare loop :(.

TODO: Figure out if we are getting hash collisions, or just have a lot of equal
content. Also test if crypto hashing the content instead of full compare is
better.

llvm-svn: 177588
 2013-03-20 22:18:22 +00:00
Michael J. Spencer 417c19923b [ELF][Reader] Add debug message to print all inputs the linker actually read. 
llvm-svn: 177564
 2013-03-20 19:26:10 +00:00
Michael J. Spencer da384eebe5 [ELF][Reader][Perf] Only do loookup once. 
llvm-svn: 177563
 2013-03-20 19:25:58 +00:00
Michael J. Spencer 602ffc13b8 [ELF][Reader] Refactor how relocations are read. Improves performance. 
This changes from reading each relocation individually for each section to just
storing the range of relocations. It also counts the relocations to preallocate
the _references array.

llvm-svn: 177562
 2013-03-20 19:25:47 +00:00
Michael J. Spencer 55a7070bea [ELF][Reader] Remove static ordinal. 
llvm-svn: 177561
 2013-03-20 19:25:34 +00:00
Michael J. Spencer 9dc5489441 memcpy instead of copy_n. Faster than copy_n on MSVC :(. 
llvm-svn: 177557
 2013-03-20 18:58:07 +00:00
Michael J. Spencer fa405277cb Devirtualize Reference::kind. 
Improves performance.

llvm-svn: 177556
 2013-03-20 18:57:52 +00:00
Michael J. Spencer 0f3dd616bd Devirtualize File::kind. 
This is the standard way of implementing LLVM RTTI.

llvm-svn: 177555
 2013-03-20 18:57:27 +00:00
Michael J. Spencer 6580d1f226 Set ordinals correctly. 
This actually doesn't change behavior with the current LinkerInvocation, but
it's needed when you make reading parallel.

llvm-svn: 177554
 2013-03-20 18:56:57 +00:00
Shankar Easwaran 452ba13271 [ELF][Hexagon] Add Hexagon dynamic relocations 
llvm-svn: 177484
 2013-03-20 05:10:02 +00:00
Shankar Easwaran 06a4039572 [ELF] Interp section is only needed in dynamic executables 
llvm-svn: 177483
 2013-03-20 05:06:40 +00:00
Shankar Easwaran 1e848e0edf [ELF] Order .got.plt properly 
llvm-svn: 177482
 2013-03-20 04:52:08 +00:00
Andy Gibbs 1fb8ce4002 Fix "control reaches end of non-void function" compiling lld on gcc. 
llvm-svn: 177424
 2013-03-19 19:13:36 +00:00
Alexey Samsonov 2712b064d8 Add virtual destructors to fix -Wnon-virtual-dtor warnings 
llvm-svn: 177392
 2013-03-19 11:41:16 +00:00
Shankar Easwaran 8962feb915 [lld] remove trailing whitespace 
llvm-svn: 177079
 2013-03-14 16:09:49 +00:00
Shankar Easwaran 74fc23fa5d [ELF][X86_64][Hexagon] order plt/got entries properly and fix test 
llvm-svn: 176970
 2013-03-13 20:30:11 +00:00
Shankar Easwaran 8c25685be7 [Pass][Layout] Add extra debugging information 
llvm-svn: 176925
 2013-03-13 04:05:38 +00:00
Michael J. Spencer c4e45f855c [ELF][Writer] Let std::vector handle allocating space instead of reserving tiny portions. 
llvm-svn: 176916
 2013-03-13 00:30:08 +00:00
Michael J. Spencer 1ecf890215 [Pass][Layout] Make algorithm not n^2. 
This reduces the time spent in this function while linking ASTMatchersTests
from %43 to %2.4 of total link time.

llvm-svn: 176842
 2013-03-12 00:10:00 +00:00
Shankar Easwaran fc9d0a7d9b [ELF] Set values for bss_start and end symbols properly, If there are two load segments with RW permissions, bss_start and end may get set inappropriate 
llvm-svn: 176795
 2013-03-11 01:38:22 +00:00
Michael J. Spencer 9b5e8da3b4 [Driver][GNU] Accept and ignore more options. 
llvm-svn: 176749
 2013-03-09 01:41:37 +00:00
Michael J. Spencer 52fdb8bf13 Fix (possible) MSVC miscompile in debug mode. 
llvm-svn: 176748
 2013-03-09 01:41:27 +00:00
Michael J. Spencer 2d224509af [Writer][ELF] Use correct data types for sizes. Fixes integer overflow bug. 
This only happens when the section header count is > 1024.

llvm-svn: 176747
 2013-03-09 01:41:16 +00:00
Shankar Easwaran b327810215 [ELF] Create baseclass for all ELF writers 
llvm-svn: 176724
 2013-03-08 21:42:51 +00:00
Shankar Easwaran c44bc347cb [ELF] Order weak symbols properly 
llvm-svn: 176583
 2013-03-06 21:59:27 +00:00
Shankar Easwaran 7d89b2b6a7 [ELF][Hexagon] fixing dynlib test 
llvm-svn: 176503
 2013-03-05 19:00:21 +00:00
Shankar Easwaran b6ef6c5a52 [ELF][Hexagon] fixing test failure 
llvm-svn: 176497
 2013-03-05 18:39:16 +00:00
Dmitri Gribenko e16bc92063 Fix -Wdocumentation warning: use a correct Doxygen comment marker 
llvm-svn: 176494
 2013-03-05 18:11:01 +00:00
Shankar Easwaran 49ae019997 [ELF] Set symbol type to STT_SECTION, so that objdump.bfd doesnot get confused when disassembling output 
llvm-svn: 176489
 2013-03-05 16:09:32 +00:00
Shankar Easwaran 3ff62ade38 [ELF] add dynamic library support 
llvm-svn: 176483
 2013-03-05 14:52:48 +00:00
Shankar Easwaran bcb722a452 [ELF] Remove comment 
llvm-svn: 176482
 2013-03-05 14:45:59 +00:00
Shankar Easwaran 7b0ae11c82 [ELF] no functionality change, update dynamicTable functionality 
llvm-svn: 176430
 2013-03-04 02:21:16 +00:00
Shankar Easwaran 03a525d6fd [lld][ELF] Add modified writer 
llvm-svn: 176425
 2013-03-03 22:10:57 +00:00
Shankar Easwaran 1993b0000c [lld][ELF] rename to add new support in the ELF Writer 
llvm-svn: 176424
 2013-03-03 22:09:22 +00:00
Shankar Easwaran 62bba5ddfb [ELF] rename Writer to ExecutableWriter 
llvm-svn: 176416
 2013-03-03 07:37:17 +00:00
Shankar Easwaran 1729e12358 [ELF][Hexagon] add initial changes to add GOT/PLT 
llvm-svn: 176415
 2013-03-03 07:34:56 +00:00
Shankar Easwaran b0e356e223 move dynamic linking atoms to Atoms.h 
llvm-svn: 176370
 2013-03-01 19:33:42 +00:00
Michael J. Spencer 8c0526593a [Writer][ELF][x86-64] Handle GOTPCREL relocations to SharedLibraryAtoms. 
llvm-svn: 176324
 2013-03-01 01:09:46 +00:00
Michael J. Spencer 3e00c5015f [ELF][x86-64] Only emit a PLT entry for a PLT relocation if the target atom is a SharedLibraryAtom. 
This seems to be what ld does, but I'm not sure how it works with symbol interposition.

With this hello-world with glibc dynamically linked works.

llvm-svn: 176310
 2013-03-01 00:03:56 +00:00
Michael J. Spencer a55e37f477 Add basic linker script parsing. 
llvm-svn: 176309
 2013-03-01 00:03:36 +00:00
Shankar Easwaran da28895597 [ELF][Hexagon] add quickdata relocations 
llvm-svn: 176298
 2013-02-28 20:54:03 +00:00
Michael J. Spencer a26f71c9ed [ELF][x86-64] Separate static and dynamic GOT/PLT generation. 
llvm-svn: 176294
 2013-02-28 20:04:32 +00:00
Shankar Easwaran 4685069152 [ELF][tests] changes for test cases 
llvm-svn: 176280
 2013-02-28 18:38:20 +00:00
Shankar Easwaran 937aa19a4b [ELF] Set header flags to 0 by default 
llvm-svn: 176279
 2013-02-28 18:36:34 +00:00
Shankar Easwaran dac3873442 [ELF][Hexagon] change Header flags 
llvm-svn: 176278
 2013-02-28 18:35:27 +00:00
Shankar Easwaran 8a2d1990d8 [lld][ELF][Hexagon] add more relocations 
llvm-svn: 176277
 2013-02-28 18:29:23 +00:00
Shankar Easwaran d4ac74ffcc [lld][ELF] Order segments 
llvm-svn: 176207
 2013-02-27 20:24:47 +00:00
Michael J. Spencer 2e41976893 [test] Don't start elf-dump until lld-core is done writing the output. 
llvm-svn: 176205
 2013-02-27 20:01:43 +00:00
Shankar Easwaran c5eda3ad2b fixing build error properly according to comment from David 
llvm-svn: 176169
 2013-02-27 05:53:38 +00:00
Shankar Easwaran 4f4ed0acdf adding a return to fix compilation error from buildbot, build #75 
llvm-svn: 176167
 2013-02-27 05:33:27 +00:00
Shankar Easwaran 2ce6b43f40 fixing typo in header file 
llvm-svn: 176162
 2013-02-27 04:02:30 +00:00
Michael J. Spencer 2063679ec4 [ELF][Writer] Add dynamic relocation tables. 
This adds separate PLT and dynamic relocation tables. It also fills in the dynamic table
entries for them.

llvm-svn: 176150
 2013-02-27 01:30:27 +00:00
Michael J. Spencer 7f09a3d54e [Pass][Layout] Fix bug and add debug printing. 
Fix a bug where if two atoms had the same index in the override map,
the compare would return false. It now goes to the next check when
they are equal.

No test because it currently can't be tested. An upcomming patch will test it.

llvm-svn: 176073
 2013-02-26 01:35:30 +00:00
Michael J. Spencer f10c0a3aa0 [ELF][Writer] Fill in dynamic table entries. 
llvm-svn: 176045
 2013-02-25 20:03:09 +00:00
Shankar Easwaran 596b40871a [ELF][Hexagon] add _SDA_BASE_(absolute symbol pointing to start of quickdata) 
llvm-svn: 175997
 2013-02-24 16:02:24 +00:00
Shankar Easwaran 1b095842ec [ELF] Change functions to virtual, in ExecutableAtoms 
llvm-svn: 175993
 2013-02-24 15:11:55 +00:00
Shankar Easwaran 5f0afe84f5 [ELF]Change name of runtime files, so that targets can change runtime files that they own 
llvm-svn: 175992
 2013-02-24 14:54:02 +00:00
Shankar Easwaran db74ffbe72 [ELF][Hexagon]add typeZeroFillFast 
llvm-svn: 175983
 2013-02-24 03:09:10 +00:00
Michael J. Spencer 3407211b2f [ELF][Writer] Add hash table. 
llvm-svn: 175972
 2013-02-23 19:46:18 +00:00
Michael J. Spencer 13db19d64e [ELF][Writer] Add a PHDR program table entry for dynamic files. 
llvm-svn: 175951
 2013-02-23 03:58:06 +00:00
Michael J. Spencer 942dbcc209 [ELF][Writer] Add dynamic string and symbol table. 
llvm-svn: 175941
 2013-02-23 01:02:31 +00:00
Shankar Easwaran 8c55c01d2a sort quickdata for the hexagon target 
llvm-svn: 175904
 2013-02-22 18:01:08 +00:00
Shankar Easwaran 873c9ffba0 add changes for typeDataFast 
llvm-svn: 175901
 2013-02-22 17:18:53 +00:00
Michael J. Spencer e4c0e3712f [ELF][Writer] Add .interp section. 
llvm-svn: 175657
 2013-02-20 20:13:47 +00:00
Michael J. Spencer b71ce655a8 [ELF][Writer] Add dynamic table. 
llvm-svn: 175654
 2013-02-20 19:46:12 +00:00
Shankar Easwaran 8a1a4e7cf7 rename fixupAddend to relocAddend 
llvm-svn: 175638
 2013-02-20 17:42:00 +00:00
Shankar Easwaran 25832ede03 functionality to handle global atoms in Merge sections 
llvm-svn: 175636
 2013-02-20 17:38:37 +00:00
Michael J. Spencer 2139795dfa [Driver][GNULD] Lookup .so files and default to dynamic output. 
llvm-svn: 175572
 2013-02-19 23:05:36 +00:00
Michael J. Spencer cadb082e5a [ELF] Fix memory leak by deleting BumpPtr allocated objects. 
llvm-svn: 175558
 2013-02-19 21:04:30 +00:00
Chandler Carruth 21aaf2534d Switch a vector<pair<const T &, const U &>> to a vector<pair<const T *, 
const U *>>. Even in C++11 it doesn't seem this is valid as vector's
emplace support requires move assignment, and there is no way to move
assign a reference.

The real motivation however is that this fixes the build of lld with
libstdc++ 4.6.

llvm-svn: 175481
 2013-02-19 01:58:11 +00:00
Michael J. Spencer be03e2a861 [Core,Driver,ELF] Differentiate static and dynamic executables. 
This also adds a simple relocation change for dynamic executables to
x86-64 ELF.

llvm-svn: 175208
 2013-02-14 20:32:00 +00:00
Michael J. Spencer db18847b01 [ELF][Writer] Refactor Section to not have atoms. Move atoms into AtomSection. 
The purpose of this change is to simplify creating non-atom sections.
Previously _contentType, _sectionKind and _order were used for multiple
purposes and collided in places. This moves all of the Atom specific logic down
into AtomSection and makes Section just have raw Elf_Shdr flags.

llvm-svn: 175207
 2013-02-14 20:24:38 +00:00
Shankar Easwaran 4b9cea7317 fix the mergeable string atom, when the target points to a symbol which is at a relative offset from the start of the .rodata section 
llvm-svn: 175039
 2013-02-13 06:35:33 +00:00
Shankar Easwaran 96d594b14e add merge strings option, this temporarily fixes the problem bringing up helloworld with glibc on x86_64 
llvm-svn: 175038
 2013-02-13 06:12:52 +00:00
Shankar Easwaran 0da6d71b54 add support for merging common strings 
llvm-svn: 174990
 2013-02-12 18:46:53 +00:00
Michael J. Spencer c3c8bc1e5c [ELF] Add support for reading dynamic libraries. 
llvm-svn: 174916
 2013-02-11 23:03:35 +00:00
Shankar Easwaran 710b4c8fa2 fix segment ordering of elf segments 
llvm-svn: 174659
 2013-02-07 20:33:55 +00:00
Shankar Easwaran 34ab70f1e6 add changes for layoutafter/layoutbefore/ingroup/layoutpass and test cases 
llvm-svn: 174658
 2013-02-07 20:16:12 +00:00
Michael J. Spencer ac4f444e39 [docs] lld self hosts. 
llvm-svn: 174592
 2013-02-07 07:26:45 +00:00
Michael J. Spencer 7799d15f6e [Driver] Add -L and -l support. 
llvm-svn: 174590
 2013-02-07 06:47:17 +00:00
Michael J. Spencer cfe59fd0d3 [Driver] Replace Target with TargetInfo. Simplify LinkerInput. 
This removes Target and moves the functionality it had over to TargetInfo.

This also simplifies LinkerInput by removing the InputKind. This will be handled elsewhere.

llvm-svn: 174589
 2013-02-07 06:46:48 +00:00
Michael J. Spencer 7a0e212f6f [ELF][x86-64] Handle PLT32 relocations to IFUNC. 
llvm-svn: 174428
 2013-02-05 19:15:03 +00:00
Michael J. Spencer 7fec00b20e [ELF][Layout] Provide a proper way to get the TLS segment size. 
llvm-svn: 174427
 2013-02-05 19:14:43 +00:00
Michael J. Spencer 359b6ff6bb [ELF] Implement GOTPCREL for defined atoms. 
llvm-svn: 174426
 2013-02-05 19:14:28 +00:00
Michael J. Spencer e6ab9f80a7 [ELF] Replace local dynamic tls access with direct access. 
llvm-svn: 174425
 2013-02-05 19:14:07 +00:00
Michael J. Spencer be1100e192 [Resolver] Improve undefined symbol error. 
llvm-svn: 174277
 2013-02-03 10:50:06 +00:00
Michael J. Spencer 7b7e8edb86 [ELF] Use LLVM_IS_UNALIGNED_ACCESS_FAST. 
llvm-svn: 174276
 2013-02-03 10:49:57 +00:00
Michael J. Spencer 7e813242af [ELF][Reader] Improve performance by removing calls to malloc. 
llvm-svn: 174275
 2013-02-03 10:49:47 +00:00
Michael J. Spencer 9a1da075b2 [ELF] Fix uninitialized variable. 
llvm-svn: 174274
 2013-02-03 10:49:37 +00:00
Michael J. Spencer 4673da27ef [Archive] Update to LLVM change. 
llvm-svn: 174273
 2013-02-03 10:49:26 +00:00
Alex Rosenberg b65e88863e Spelling and grammar corrections. 
llvm-svn: 174268
 2013-02-03 07:05:26 +00:00
Shankar Easwaran a47495898c remove duplicate strings from the string table 
llvm-svn: 174200
 2013-02-01 18:06:15 +00:00
Shankar Easwaran d476528e3d add alignment to .got/.got.plt/.plt sections & fix tests 
llvm-svn: 174199
 2013-02-01 18:03:32 +00:00
Shankar Easwaran f23fc86ca8 add proper copyright header 
llvm-svn: 174178
 2013-02-01 15:05:11 +00:00
Michael J. Spencer 18950a174e [Docs] Update status :) 
llvm-svn: 174162
 2013-02-01 09:20:24 +00:00
Michael J. Spencer 08b49bf27e [ELF][x86-64] Fix ifunc and add test. 
In an previous commit I managed to completely disable the IRELATIVE relocation
writing code. I also used the wrong addend for the static relocation. Fix both
these issues and add a test. This test is quite brittle because there's no way
to do arithmetic on variables in FileCheck.

llvm-svn: 174161
 2013-02-01 09:14:21 +00:00
Michael J. Spencer b5d6f5e988 [ELF][x86-64] Implement static relocation model for TLS. 
This implements the static relocation model for GOT accesses to TLS.

llvm-svn: 174155
 2013-02-01 07:14:14 +00:00
Michael J. Spencer b0ed8e80d8 [ELF][x86-84] Add static TLS support. 
llvm-svn: 174154
 2013-02-01 07:13:49 +00:00
Michael J. Spencer 3c75665fdd [ELF][x86-64] Add the _GLOBAL_OFFSET_TABLE_ Atom in the correct location. 
Now we link against glibc without --noinhibit-exec.

llvm-svn: 174150
 2013-02-01 05:36:14 +00:00
Michael J. Spencer c8803d27aa [ELF] Add more absolute atoms. Simplify how they are resolved. 
llvm-svn: 174149
 2013-02-01 05:36:00 +00:00
Shankar Easwaran 73ef70b50f add hexagon scatter bits and split hexgontargethandler to hexagonrelocationhander 
llvm-svn: 174148
 2013-02-01 05:26:02 +00:00
Michael J. Spencer 280dadbbaf [Core] Only complain about undefined symbols if they are marked as canBeNullNever. 
llvm-svn: 174107
 2013-01-31 22:56:13 +00:00
Michael J. Spencer 461d33648b [ELF][x86-64] Improve unknown relocation message. 
llvm-svn: 174092
 2013-01-31 21:00:57 +00:00
Michael J. Spencer 3830d2c49f [ELF] Create atoms for progbits sections with no symbols but still have content. 
llvm-svn: 174091
 2013-01-31 21:00:42 +00:00
Shankar Easwaran fb8565a9c6 add support for assigning virtual addresses to TDATA/TBSS sections 
llvm-svn: 174065
 2013-01-31 16:04:47 +00:00
Michael J. Spencer b3c04d28c8 [ELF] Fix circular initialization bug. 
llvm-svn: 173968
 2013-01-30 20:36:56 +00:00
Michael J. Spencer 901fd6a4c8 [ELF] Use the target's LayoutHandler. 
llvm-svn: 173966
 2013-01-30 20:05:27 +00:00
Shankar Easwaran e07245cdfc hexagon targetinfo changes for getting the relocation kind from string and vice versa 
llvm-svn: 173942
 2013-01-30 16:05:43 +00:00
Shankar Easwaran ddb122811b simplify hexagon relocations handling 
llvm-svn: 173938
 2013-01-30 15:38:41 +00:00
Michael J. Spencer 23d23953b3 [ELF][x86-64] Add TargetLayout. 
llvm-svn: 173922
 2013-01-30 10:43:25 +00:00
Michael J. Spencer 8254185eea Whitespace. 
llvm-svn: 173921
 2013-01-30 10:43:10 +00:00
Michael J. Spencer d21b72730f [ELF] Remove ReferenceKinds. 
llvm-svn: 173912
 2013-01-30 07:46:54 +00:00
Michael J. Spencer f35c3e434a [ELF] Use TargetRelocationHandler to apply relocations. 
llvm-svn: 173911
 2013-01-30 07:46:31 +00:00
Michael J. Spencer 409a737f36 [ELF] Add {Hexagon,PPC,X86}TargetHandler. 
llvm-svn: 173909
 2013-01-30 07:36:45 +00:00
Shankar Easwaran 072031a265 change the function names in RelocationHelper to adhere to convention 
llvm-svn: 173908
 2013-01-30 07:36:09 +00:00
Shankar Easwaran 396e4c0b13 change DefaultLayout to TargetLayout inside member variables 
llvm-svn: 173906
 2013-01-30 07:19:57 +00:00
Shankar Easwaran a6f00fe083 add targethandler hooks from Writer and cleanup 
llvm-svn: 173904
 2013-01-30 07:11:43 +00:00
Michael J. Spencer 457a77739b [ELF][x86-64] Add X86_64TargetRelocationHandler and friends. 
llvm-svn: 173897
 2013-01-30 05:26:03 +00:00
Michael J. Spencer 4e9d9cd23b [ELF] Add ELFTargetRelocationHandler. 
llvm-svn: 173896
 2013-01-30 05:25:44 +00:00
Shankar Easwaran a51870b143 add Relocation helper functions 
llvm-svn: 173895
 2013-01-30 04:49:54 +00:00
Michael J. Spencer 4260657fab [ELF] Make AtomLayout more accessible. 
This is needed to allow constant time access to the final layout of atoms.

llvm-svn: 173874
 2013-01-30 01:25:06 +00:00
Michael J. Spencer e68f90355c [ELF] Chop the ELF prefix off of most things. 
llvm-svn: 173838
 2013-01-29 22:03:39 +00:00
Shankar Easwaran 185e8a076d remove targetInfo and layout from ELFTargetLayout 
llvm-svn: 173824
 2013-01-29 20:13:16 +00:00
Michael J. Spencer 43ecac5a2c [ELF] Fix header sort order. 
llvm-svn: 173822
 2013-01-29 19:53:41 +00:00
Michael J. Spencer 289dcedea5 [ELF] Add support for IFUNC. 
This sadly doesn't have a test for the final
output because llvm-objdump can't dump relocations
that don't belong to a section :(

llvm-svn: 173808
 2013-01-29 16:38:03 +00:00
Michael J. Spencer bf77be3ba5 [ELF] Give Chunk a ELFTargetInfo. 
llvm-svn: 173743
 2013-01-29 01:07:47 +00:00
Michael J. Spencer adfb7eb211 [ELF] Remove OwningPtr from the Chunk::write interface. 
llvm-svn: 173741
 2013-01-29 01:00:21 +00:00
Michael J. Spencer bdf8bc8315 [ELF] Clean up doxygen comments. 
llvm-svn: 173740
 2013-01-29 01:00:04 +00:00
Shankar Easwaran 072fb1a403 add register section, remove contentType from sectionKey 
llvm-svn: 173709
 2013-01-28 19:21:04 +00:00
Michael J. Spencer d269a3e281 [ELF] Use correct regex in test. 
llvm-svn: 173665
 2013-01-28 06:11:39 +00:00
Michael J. Spencer 990ec2b223 [ELF] Use entry point from LinkerOptions. 
Patch by Ahmed Bougacha!

llvm-svn: 173655
 2013-01-28 04:15:44 +00:00
Benjamin Kramer ac49d37a63 lldX86_64ELFTarget depends on lldCore. 
llvm-svn: 173573
 2013-01-26 13:49:19 +00:00
Michael J. Spencer 20231f1275 Use proper delete. 
llvm-svn: 173570
 2013-01-26 12:26:56 +00:00
Michael J. Spencer 5ba1a96a10 [ELF][x86-64] Add relocation string<->kind. 
llvm-svn: 173533
 2013-01-25 23:48:58 +00:00
Michael J. Spencer 866e0f8a8c [ELF][X86-64] Use the correct base address. 
llvm-svn: 173527
 2013-01-25 23:23:24 +00:00
Michael J. Spencer 385f312686 [CMake] Setup include dirs properly. 
llvm-svn: 173488
 2013-01-25 20:50:01 +00:00
Shankar Easwaran 4277c2d6bf change all occurences of File to FileELF 
llvm-svn: 173449
 2013-01-25 15:19:02 +00:00
Shankar Easwaran 3256d4ff62 add elf targethandler 
llvm-svn: 173430
 2013-01-25 07:39:18 +00:00
Michael J. Spencer 88f4d24e4a [Driver] Run the pass manager. 
llvm-svn: 173381
 2013-01-24 22:52:42 +00:00
Michael J. Spencer 19c4756ff2 Move SimpleAtoms.h to ReaderWriter. 
llvm-svn: 173380
 2013-01-24 22:52:25 +00:00
Nick Kledzik 36293f6512 Add SectionPosition and OrderPass 
llvm-svn: 173300
 2013-01-23 22:32:56 +00:00
Michael J. Spencer 563d33a6f1 [ELF] Read IFUNC symbols correctly as typeResolver. 
llvm-svn: 173299
 2013-01-23 22:08:46 +00:00
Michael J. Spencer c0d3c4efe6 Add PassManager. 
It owns and manages passes.

llvm-svn: 173287
 2013-01-23 20:03:10 +00:00
Shankar Easwaran c142874c9c change from using 2 bits to 4 bits, as 2 bits arent enough to hold the enumeration OutputKind 
llvm-svn: 173266
 2013-01-23 15:11:22 +00:00
Michael J. Spencer 64afcb4c6b Move everything over to TargetInfo. 
I really would have liked to split this patch up, but it would greatly
complicate the lld-core and lld drivers having to deal with both
{Reader,Writer}Option and TargetInfo.

llvm-svn: 173217
 2013-01-23 01:18:43 +00:00
Michael J. Spencer 4586fbcbad [Core] Move Resolver and SymbolTable over to TargetInfo. 
No functionality change.

llvm-svn: 173192
 2013-01-22 20:49:42 +00:00
Shankar Easwaran 58ad41b563 change enum class to enum, as g++ doesnot support bitfields with enumerated classes with c++11 flag set 
llvm-svn: 173166
 2013-01-22 14:58:51 +00:00
Shankar Easwaran c7176430dc it looks like g++ 4.7.2 doesnot like bit fields when the type is a enumeration (Throws an error as bit-field with non integral type) 
llvm-svn: 173125
 2013-01-22 04:12:03 +00:00
Michael J. Spencer d68d6196af Add {,ELF,MachO}TargetInfo. 
llvm-svn: 173117
 2013-01-22 02:15:30 +00:00
Shankar Easwaran 6d9921fc53 no functionality changes(split WriterELF into multiple files) 
llvm-svn: 173082
 2013-01-21 20:09:55 +00:00
Michael J. Spencer 8af48f3864 [Core] Use LLVM's ErrorOr<T>. 
llvm-svn: 172993
 2013-01-20 21:27:05 +00:00
Michael J. Spencer 359e09d4f5 [docs] Document lld's usage of C++11 features. 
llvm-svn: 172972
 2013-01-20 10:39:17 +00:00
Chandler Carruth b5f3bd956c Replace the 'final' keyword with 'LLVM_FINAL' as GCC 4.6 doesn't support 
the keyword.

If anyone cares deeply about the final optimizations with GCC, we might
want to add a version test to the LLVM definition, but I'm perfectly
happy with this just only firing under Clang and modern MSVC builds.

llvm-svn: 172898
 2013-01-19 09:57:51 +00:00
Chandler Carruth 8b95c03fca Allow the LLD CMake build to work with -std=gnu++0x and -std=gnu++11 as 
well as c++0x and c++11. This can be especially useful when building
with GCC in C++11 mode.

llvm-svn: 172897
 2013-01-19 09:41:42 +00:00
Chandler Carruth 058761266d Fix the build with libstdc++ v4.6 on Linux by supplying an explicit move 
assignment operator. There is an issue where classes with deleted copy
constructors and user defined move constructors end up with an
implicitly deleted copy constructor that is selected instead of the
implicit move constructor. This is a bit of a hack, but it allows me to
build LLD in a bootstrap with libstdc++ which is my primary goal.

llvm-svn: 172896
 2013-01-19 09:38:14 +00:00
Michael J. Spencer a17b72e7cf [Core] Fix passing an rvalue reference of ErrorOr. 
llvm-svn: 172850
 2013-01-18 21:42:01 +00:00
Michael J. Spencer 71c00f42bd [ELF] Use operator new(std::size_t, BumpPtrAllocator). 
llvm-svn: 172675
 2013-01-16 23:34:45 +00:00
Michael J. Spencer 84d3b01fb5 [ELF] clang-format ReaderELF.cpp 
llvm-svn: 172674
 2013-01-16 23:34:32 +00:00
Michael J. Spencer fe71a50494 Trailing whitespace. 
llvm-svn: 172554
 2013-01-15 21:13:14 +00:00
Michael J. Spencer 8b3898af26 [ELF] Never allocate content to weak symbols as they may be merged away. 
This is done by creating a new non-weak anonymous symbol and creating
an atom with content for that symbol. This is added after the weak symbol
so that they have the same address.

llvm-svn: 172553
 2013-01-15 21:13:02 +00:00
Michael J. Spencer 842885e06e [ELF] Refactoring and style cleanup. No functionality change. 
llvm-svn: 172552
 2013-01-15 21:12:45 +00:00
Michael J. Spencer b03f6c489a [ELF] Update for LLVM Object/ELF changes. 
llvm-svn: 172516
 2013-01-15 07:53:22 +00:00
Michael J. Spencer bb78a04088 [ELF] Replace [...] x_{begin,end}() with range<[...]> x(). 
llvm-svn: 172513
 2013-01-15 06:55:37 +00:00
Michael J. Spencer aa3aa570dc [Core] Add iterator ranges. 
This is based on code by Jeffrey Yasskin. It has been modified to compile
with MSVC and reformated to LLVM style.

llvm-svn: 172512
 2013-01-15 06:55:25 +00:00
Michael J. Spencer 7fe77f8c61 [ELF] Fix use of LLVM RTTI. 
llvm-svn: 172511
 2013-01-15 06:55:11 +00:00
Shankar Easwaran f6dc082f91 remove const from FindByName 
llvm-svn: 172507
 2013-01-15 03:02:33 +00:00
Michael J. Spencer ed1950719b [docs] Add driver documentation. 
This gives an overview of the driver and explains how to add options and driver flavors.

llvm-svn: 172502
 2013-01-15 02:00:59 +00:00
Michael J. Spencer 31dffbb659 [docs] Update status. 
llvm-svn: 172501
 2013-01-15 02:00:48 +00:00
Nick Kledzik 233f537799 Add new merge-by-content Merge attribute for use by anonymous 
constants and string literals which the linker should coalesce.

llvm-svn: 172495
 2013-01-15 00:17:57 +00:00
Nick Kledzik 343ecbd6ba Fix shadowed variable warning 
llvm-svn: 172482
 2013-01-14 22:10:22 +00:00
Michael J. Spencer ca20ffbab2 [test] Fix tests on Windows. 
llvm-svn: 172339
 2013-01-13 01:09:51 +00:00
Michael J. Spencer 74ba722be1 [YAML] Fix undefined behavior. 
llvm-svn: 172338
 2013-01-13 01:09:39 +00:00
Michael J. Spencer 57752dc56e Factor File::addAtom out to MutableFile::addAtom. 
This removes a bunch of llvm_unreachables and makes a File's mutability part of the type system.

llvm-svn: 172297
 2013-01-12 02:45:54 +00:00
Michael J. Spencer 3756852d62 [ELF] Fix comment. 
llvm-svn: 172266
 2013-01-11 22:39:56 +00:00
Michael J. Spencer 4ffbd608cd [ELF] Add AtomLayout instead of using pair<Atom, pair<uint64_t, uint64_t>>. 
llvm-svn: 172265
 2013-01-11 22:39:44 +00:00
Michael J. Spencer 2a5763cd86 [ELF] Use the correct cast. 
llvm-svn: 172264
 2013-01-11 22:39:31 +00:00
Michael J. Spencer bbe4b9812b [ELF] Simplify assert. 
llvm-svn: 172255
 2013-01-11 21:38:36 +00:00
Shankar Easwaran b1d09c07f1 better implementation for findOutputSection 
llvm-svn: 172236
 2013-01-11 18:56:11 +00:00
Shankar Easwaran 7381db059a add noinhibit exec option 
llvm-svn: 172204
 2013-01-11 15:11:47 +00:00
Shankar Easwaran d127d8169a add hexagon target to lld 
llvm-svn: 172202
 2013-01-11 15:01:04 +00:00
Michael J. Spencer ecd5f4062f [ELF] Add support for __init_array_{start,end}. 
With this change c++ global constructors and destructors work.

llvm-svn: 172133
 2013-01-10 22:41:42 +00:00
Michael J. Spencer 36b9b8f945 [ELF] Fix leading 0 count. Matches change in llvm. 
llvm-svn: 172132
 2013-01-10 22:41:19 +00:00
Michael J. Spencer aa8a5a2ab2 [ELF] Fixed -Wunused in -asserts mode. 
llvm-svn: 172131
 2013-01-10 22:41:05 +00:00
Shankar Easwaran 37c528259a style changes 
llvm-svn: 172080
 2013-01-10 18:16:10 +00:00
Shankar Easwaran 2ca8e7d733 support for adding linker defined symbols 
llvm-svn: 172040
 2013-01-10 03:16:27 +00:00
Michael J. Spencer ad5f00ea2d [Archive] Use a hash map to lookup symbols in archives. Increases performance of linking lua by ~6x. 
llvm-svn: 172028
 2013-01-10 01:27:45 +00:00
Michael J. Spencer 41d9dc56d3 Style fixes. 
llvm-svn: 171997
 2013-01-09 20:39:07 +00:00
Michael J. Spencer cf2306fe2b Fix the elf/rodata.objtext test to work when first run. 
llvm-svn: 171992
 2013-01-09 20:10:30 +00:00
Nick Kledzik cc3d2dca60 Better tie together ContentType and Permissions. 
Since most content types (e.g. typeCode) have a 
preferred Permission, add a function to do that mapping.
Then hook up to YAML Reader and Writer such that
the 'permissions:' key does not need to be specified unless
overriding what the content type prefers.

llvm-svn: 171929
 2013-01-09 01:17:12 +00:00
Nick Kledzik bd49198409 add extra namespace for gcc-4.7 compatibility 
llvm-svn: 171918
 2013-01-08 23:51:03 +00:00
Nick Kledzik 80fe907903 fix typo 
llvm-svn: 171916
 2013-01-08 23:43:11 +00:00
Michael J. Spencer 6047163a24 [lld] Add support for -mllvm. 
There is no way to test this at the moment because the options are not
processed until the link starts, and we can't pass an empty file.

llvm-svn: 171910
 2013-01-08 22:59:27 +00:00
Michael J. Spencer 79fafccb5e [Driver] Fix indentation. 
llvm-svn: 171909
 2013-01-08 22:59:01 +00:00
Nick Kledzik 8a3052eab0 Rename YAML key 'fixups:' to 'references:' 
llvm-svn: 171898
 2013-01-08 21:12:13 +00:00
Nick Kledzik 809b9955e8 Fix to work with style of new YAML writer 
llvm-svn: 171897
 2013-01-08 21:05:47 +00:00
Michael J. Spencer d2a4ccf8f9 [ELF] Add R_X86_64_64 relocation. 
llvm-svn: 171836
 2013-01-08 02:12:15 +00:00
Michael J. Spencer 8f80cd92d9 [lld] Add and ignore some flags for ld compat. 
llvm-svn: 171835
 2013-01-08 02:12:01 +00:00
Michael J. Spencer 8de8364753 [ELF] Properly handle constant data. 
With this hello world works with dietlibc on x86-64 Linux.

llvm-svn: 171711
 2013-01-07 08:00:42 +00:00
Michael J. Spencer 956b03618c [lld] Add -emit-yaml option. This outputs yaml instead of a binary. 
llvm-svn: 171710
 2013-01-07 08:00:25 +00:00
Michael J. Spencer 1ac382f0c5 [ELF] Emit the file header and program headers at the beginning of the first segment. 
This is required for the loader to correctly set AT_PHDR.

With this lld can correctly link against dietlibc and get to main.

llvm-svn: 171709
 2013-01-07 08:00:04 +00:00
Michael J. Spencer 00b702c95c [ELF] Change Segment to hold Chunks instead of Sections. No functionality change. 
llvm-svn: 171708
 2013-01-07 07:59:46 +00:00
Michael J. Spencer c8a12cce98 [ELF] Remove dead variable. 
llvm-svn: 171707
 2013-01-07 07:59:34 +00:00
Michael J. Spencer 28c6594c71 [ELF] Emit zeroFill as STT_OBJECT in the final executable. ld does this. 
llvm-svn: 171704
 2013-01-07 07:05:52 +00:00
Michael J. Spencer cdb892488e [ELF] Add common x86_64 relocation types. 
llvm-svn: 171703
 2013-01-07 06:58:53 +00:00
Michael J. Spencer 0c3f25ead9 [Driver] x86-64 should use ELF 64. 
llvm-svn: 171693
 2013-01-07 04:51:32 +00:00
Michael J. Spencer c41d48fdee [ELF] Give a slightly better message for unknown relocation types. 
llvm-svn: 171692
 2013-01-07 04:51:17 +00:00
Michael J. Spencer fd3981d6db [ELF] Update to llvm change. 
llvm-svn: 171652
 2013-01-06 05:40:27 +00:00
Michael J. Spencer 00744bf495 [YAML] Fix -Wcovered-switch-default 
llvm-svn: 171645
 2013-01-06 00:45:22 +00:00
Michael J. Spencer c4048062e5 [CMake] Don't add flags this late and don't force libc++. Error if we know the compiler doesn't support c++11. 
llvm-svn: 171596
 2013-01-05 04:16:52 +00:00
Nick Kledzik 6b079f5e2f Removes files for separate ReaderYAML.cpp and WriterYAML.cpp 
and adds a new file ReaderWriterYAML.cpp that uses YAML I/O.

Lots of tweaks to test suite for slightly different YAML encoding.

llvm-svn: 171592
 2013-01-05 02:22:35 +00:00
Reid Kleckner e974bd1be9 Avoid MSVCRT assertion on comparing phdr iterators 
llvm-svn: 171591
 2013-01-05 02:21:42 +00:00
Michael J. Spencer 3a772ebbe4 [CMake] Add lld to the list of test dependencies. 
llvm-svn: 171580
 2013-01-05 00:51:04 +00:00
Michael J. Spencer 70d0e10c5f Target test fix. 
llvm-svn: 171579
 2013-01-05 00:47:15 +00:00
Michael J. Spencer 3124422a8b [ELF] Add skeleton for X86-64 relocations. 
llvm-svn: 171578
 2013-01-05 00:47:04 +00:00
Michael J. Spencer 18225e7be1 [Driver] Add -flavor core support. This will be tested by other tests using -flavor core. 
llvm-svn: 171577
 2013-01-05 00:46:45 +00:00
Michael J. Spencer 5adebbd6a6 [ELF][Writer] Don't infinite loop. 
This will be tested by a following committ that runs the linker
with no inputs.

llvm-svn: 171576
 2013-01-05 00:46:23 +00:00
Michael J. Spencer b14ac9b1fe Style 
llvm-svn: 171575
 2013-01-05 00:46:10 +00:00
Michael J. Spencer bc7f2a7359 [Driver] Add x86-64 target. 
llvm-svn: 171557
 2013-01-04 23:34:29 +00:00
Michael J. Spencer 65f6113d21 [ELF] STT_GNU_IFUNC is a known symbol type, so accept it. We do not yet implement its semantics. 
llvm-svn: 171533
 2013-01-04 21:25:25 +00:00
Michael J. Spencer 552074f18e Style fixes. 
llvm-svn: 171531
 2013-01-04 21:18:34 +00:00
Michael J. Spencer b8c853e5eb [Passes][GOT] Fix style. 
llvm-svn: 171530
 2013-01-04 21:18:13 +00:00
Michael J. Spencer 85d998a109 [Driver] Error on undefined. 
llvm-svn: 171529
 2013-01-04 21:18:02 +00:00
Michael J. Spencer 7f693c50db Slightly better diagnostics on duplicate symbols. 
llvm-svn: 171528
 2013-01-04 21:17:51 +00:00
Michael J. Spencer a2c9727810 [ELF] Handle misaligned ELF files properly. 
llvm-svn: 171526
 2013-01-04 21:09:21 +00:00
Alex Rosenberg 59095f1cf9 Add .arcconfig for Phabricator command-line support 
llvm-svn: 171451
 2013-01-03 02:15:37 +00:00
NAKAMURA Takumi 43632a26a5 Update the copyright coredits -- Happy new year 2013! 
llvm-svn: 171342
 2013-01-01 10:00:19 +00:00
Shankar Easwaran 495d38bf46 add Changes to ELF Writer to layout sections/segments in the output executable 
llvm-svn: 171135
 2012-12-27 02:26:30 +00:00
Shankar Easwaran bbf9ddda04 changes for the ELF Reader : split up into AtomsELF.h/Adding new permissions permRWX 
llvm-svn: 171127
 2012-12-27 01:40:08 +00:00
Shankar Easwaran b3cb257b8b changes to fix Hexagon Relocation so that it accounts for the bitmask properly as documented in the ABI 
llvm-svn: 171125
 2012-12-27 01:04:00 +00:00
Andy Gibbs d02bf1d232 Fix build issue when building lld against libstdc++ 4.7 
llvm-svn: 170983
 2012-12-22 09:46:10 +00:00
Michael J. Spencer 8ac9150556 [ELF][Reader] Ignore SHF_GROUP when switching on flags. 
llvm-svn: 170624
 2012-12-20 00:37:24 +00:00
Michael J. Spencer 6344b322e2 Style fixes. 
llvm-svn: 170623
 2012-12-20 00:37:10 +00:00
Michael J. Spencer 800de03813 [Core][ErrorOr] Add support for user error data. 
llvm-svn: 170483
 2012-12-19 00:51:07 +00:00
Michael J. Spencer db1450800a [CMake] Fix external llvm build. It needs to know where llvm-tblgen is. 
llvm-svn: 169794
 2012-12-10 23:52:34 +00:00
Michael J. Spencer 74f29afd58 [Driver] Add test. 
llvm-svn: 169721
 2012-12-10 02:53:10 +00:00
Michael J. Spencer 99b99d26bb [Driver] Properly handle -entry for X86 Linux. 
llvm-svn: 169718
 2012-12-09 23:56:37 +00:00
Michael J. Spencer 3825760550 [Driver] Add -### support for printing out the core command line. 
llvm-svn: 169717
 2012-12-09 23:56:26 +00:00
Michael J. Spencer 48ed572710 Remove left over debugging output. 
llvm-svn: 169716
 2012-12-09 23:56:03 +00:00
Michael J. Spencer c8b60a70be [Driver] Make the X86Linux target use X86 (not x64) and properly initalize WriterOptions. 
llvm-svn: 169715
 2012-12-09 23:55:52 +00:00
Michael J. Spencer 9ff4be240a Add the core architecture for the lld driver. 
This includes selecting which driver to emulate, option parsing, invocation
building, and running the link. This currently only supports a very basic
subset of ld for x86_64-linux.

lld -flavor ld obj.o -o obj

or symlink lld as (ld , link, ld64, core) to get the desired behavior without
-flavor.

llvm-svn: 169659
 2012-12-08 00:47:36 +00:00
Benjamin Kramer f7798e34c9 Add library dependencies to the lld cmake build. 
llvm-svn: 169306
 2012-12-04 21:09:04 +00:00
Hemant Kulkarni 736f7fbee2 Populate entry point into ELF executable. 
llvm-svn: 168461
 2012-11-21 21:07:36 +00:00
Hemant Kulkarni 87dbac00a9 Add program header emission to ELF writer. This patch also rearranges sections for efficient memory utilization 
llvm-svn: 167874
 2012-11-13 21:34:45 +00:00
Shankar Easwaran 85bb045106 changes after mspencer reviews in phabricator 
llvm-svn: 167871
 2012-11-13 20:34:55 +00:00
Michael J. Spencer a5d22811af Fix style violations. 
llvm-svn: 167869
 2012-11-13 19:58:58 +00:00
Shankar Easwaran 70b4dcfbcd Adding support to resolve symbols with archive libraries in lld 
llvm-svn: 167854
 2012-11-13 18:39:10 +00:00
Hemant Kulkarni f828613945 Add absolute symbol scope recognition in lld/Core 
llvm-svn: 167394
 2012-11-05 19:13:54 +00:00
Nick Kledzik 8cf031e4cc rename dylibNamesToOrdinal now that it is an ivar 
llvm-svn: 167254
 2012-11-01 21:44:45 +00:00
Michael J. Spencer a1913fbda9 [ELF] Fix -Woverloaded-virtual 
llvm-svn: 167246
 2012-11-01 19:46:19 +00:00
Michael J. Spencer d91bc3c8bb [MachO] Fix use after free. 
llvm-svn: 167245
 2012-11-01 19:46:06 +00:00
Michael J. Spencer c1d704550a [MachO] Fix uninitialized variables. 
llvm-svn: 167244
 2012-11-01 19:45:53 +00:00
Michael J. Spencer e337e60552 Fix cl brokeness. 
cl is not attempting to complete a templated class when used in this
context. The conversion forces this to happen.

Thanks to Richard Smith for figuring this out.

llvm-svn: 167166
 2012-10-31 20:47:30 +00:00
Michael J. Spencer d2f7e50867 Add missing include. 
llvm-svn: 167165
 2012-10-31 20:47:11 +00:00
Sid Manning 823e8bb7be This patch changes the following: 
* Use conventional naming for KindHandlers.
  * Add X86 relocation routines.
  * Use std::function instead of function pointers in _fixupHandler map.
  * Change _fixupHandler map from std::map to llvm::DenseMap.
  * Add simple testcase for x86 relocations.

llvm-svn: 166700
 2012-10-25 17:53:04 +00:00
Sid Manning 2a59024ff8 This update does the following: 
* Moves enum Scope from DefinedAtom.h to Atom.h
  * Adds scope method to AbsoluteAtom class
  * Updates YAML to print scope of AbsoluteAtoms
  * Update Native Reader/Writer to handle this new, "attribute"
  * Adds testcase 
Reviewed and approved by Nick Kledzik

llvm-svn: 166189
 2012-10-18 17:16:19 +00:00
Sid Manning 42064e5b60 * Add relocation reference support for Hexagon and PowerPC. 
- Hexagon has many relocation types, this patch covers just
      a subset, more will be added.
    - PowerPC support was added so that we can verify mixed endian
      environments.
  * Add some basic test cases
  * Update ldd-core to accept -endian flag

llvm-svn: 165477
 2012-10-09 02:20:47 +00:00
Sid Manning e3612f0f21 Fix incorrect setting of EI_DATA 
llvm-svn: 165310
 2012-10-05 14:06:24 +00:00