Commit Graph

5176 Commits

Author SHA1 Message Date
Rafael Espindola 9d2250ad43 Delete dead code.
The gold plugin doesn't call lseek or read directly any more.

llvm-svn: 214221
2014-07-29 21:09:43 +00:00
Rafael Espindola 6c472e5e14 gold plugin: Fix handling of corrupted bitcode files.
We should still claim them and tell gold about the error.

llvm-svn: 214214
2014-07-29 20:46:19 +00:00
Rafael Espindola 125b9244ca Small gold plugin simplifications.
* Use a range loop.
* Store the extra options as "const char *".

llvm-svn: 214199
2014-07-29 19:17:44 +00:00
Simon Atanasyan b5adb21240 Install the `obj2yaml` and `yaml2obj` utilities together with other LLVM tools.
llvm-svn: 214191
2014-07-29 18:28:16 +00:00
Duncan P. N. Exon Smith 86fdba2f3f llvm-uselistorder: Fix header comments from r214144
llvm-svn: 214187
2014-07-29 17:44:26 +00:00
Duncan P. N. Exon Smith ff3caa5a3e llvm-uselistorder: Add -num-shuffles option
llvm-svn: 214144
2014-07-28 23:25:21 +00:00
Kevin Enderby 49b4f53cad Tweak llvm-nm’s -undefined-only (aka -u) printing for Mach-O files
to just print the symbol name.  So it matches darwin’s nm(1) -u option.

llvm-svn: 214143
2014-07-28 23:17:38 +00:00
Duncan P. N. Exon Smith 3a7fb63c49 llvm-uselistorder: Get it building in configure+make after r214125
Somehow this wasn't being built before (only noticed now since the test
was XFAILed).

llvm-svn: 214128
2014-07-28 21:47:40 +00:00
Duncan P. N. Exon Smith 1f66c856b5 Bitcode: Serialize (and recover) use-list order
Predict and serialize use-list order in bitcode.  This makes the option
`-preserve-bc-use-list-order` work *most* of the time, but this is still
experimental.

  - Builds a full value-table up front in the writer, sets up a list of
    use-list orders to write out, and discards the table.  This is a
    simpler first step than determining the order from the various
    overlapping IDs of values on-the-fly.

  - The shuffles stored in the use-list order list have an unnecessarily
    large memory footprint.

  - `blockaddress` expressions cause functions to be materialized
    out-of-order.  For now I've ignored this problem, so use-list orders
    will be wrong for constants used by functions that have block
    addresses taken.  There are a couple of ways to fix this, but I
    don't have a concrete plan yet.

  - When materializing functions lazily, the use-lists for constants
    will not be correct.  This use case is out of scope: what should the
    use-list order be, if it's incomplete?

This is part of PR5680.

llvm-svn: 214125
2014-07-28 21:19:41 +00:00
Duncan P. N. Exon Smith 2101a7fbcf llvm-uselistorder: Add -save-temps option
This is part of PR5680.

llvm-svn: 214123
2014-07-28 21:12:19 +00:00
Duncan P. N. Exon Smith 75d94849b4 llvm-uselistorder: Check the correct flag for assembly
This is part of PR5680.

llvm-svn: 214122
2014-07-28 21:12:17 +00:00
Alex Lorenz 2b5d03ae94 llvm-cov: move the gcov code into a separate file.
The gcov compatible code is moved to its own file and
llvm-cov is updated to be a wrapper that always calls
the gcov main function.

llvm-svn: 214107
2014-07-28 18:03:51 +00:00
NAKAMURA Takumi c82ee2f1ad llvm-uselistorder: Fix up LINK_COMPONENTS.
llvm-svn: 213974
2014-07-25 21:33:18 +00:00
Duncan P. N. Exon Smith 4b4d8ecde1 Move -verify-use-list-order into llvm-uselistorder
Ugh.  Turns out not even transformation passes link in how to read IR.
I sincerely believe the buildbots will finally agree with my system
after this though.  (I don't really understand why all of this has been
working on my system, but not on all the buildbots.)

Create a new tool called llvm-uselistorder to use for verifying use-list
order.  For now, just dump everything from the (now defunct)
-verify-use-list-order pass into the tool.

This might be a better way to test use-list order anyway.

Part of PR5680.

llvm-svn: 213957
2014-07-25 17:13:03 +00:00
David Majnemer bf32f773cc llvm-vtabledump: use a std::map instead of a StringMap for VBTables
StringMap doesn't guarantee any particular iteration order,
this is suboptimal when comparing llvm-vtabledump's output for two
object files.

llvm-svn: 213921
2014-07-25 04:30:11 +00:00
Kevin Enderby 08e1bbd645 Add an implementation for llvm-nm’s -print-file-name option (aka -o and -A).
The -print-file-name option in llvm-nm is to precede each symbol
with the object file it came from.  While code for the parsing of this
option and its aliases existed there was no code to implement it.

llvm-svn: 213906
2014-07-24 23:31:52 +00:00
David Majnemer 72ab1a5aee llvm-vtabledump: A vtable dumper
This tool's job is to dump the vtables inside object files.  It is
currently limited to MS ABI vf- and vb-tables but it will eventually
support Itanium-style v-tables as well.

Differential Revision: http://reviews.llvm.org/D4584

llvm-svn: 213903
2014-07-24 23:14:40 +00:00
NAKAMURA Takumi 5cc4606378 [CMake] tools/lto: Prune redundant libdep(s).
llvm-svn: 213855
2014-07-24 11:44:44 +00:00
NAKAMURA Takumi 9c3bd7618a Update library dependencies.
llvm-svn: 213832
2014-07-24 02:10:42 +00:00
Reid Kleckner 2de13f620d Add a VS "14" msbuild toolset
This allows people to try clang inside MSBuild with the VS "14" CTP
releases.

Fixes PR20341.

Patch by Marcel Raad!

llvm-svn: 213819
2014-07-23 23:49:16 +00:00
Lang Hames f7acddde5b [MCJIT] Refactor and add stub inspection to the RuntimeDyldChecker framework.
This patch introduces a 'stub_addr' builtin that can be used to find the address
of the stub for a given (<file>, <section>, <symbol>) tuple. This address can be
used both to verify the contents of stubs (by loading from the returned address)
and to verify references to stubs (by comparing against the returned address).

Example (1) - Verifying stub contents:

Load 8 bytes (assuming a 64-bit target) from the stub for 'x' in the __text
section of f.o, and compare that value against the addres of 'x'.

# rtdyld-check: *{8}(stub_addr(f.o, __text, x) = x

Example (2) - Verifying references to stubs:

Decode the immediate of the instruction at label 'l', and verify that it's
equal to the offset from the next instruction's PC to the stub for 'y' in the
__text section of f.o (i.e. it's the correct PC-rel difference).

# rtdyld-check: decode_operand(l, 4) = stub_addr(f.o, __text, y) - next_pc(l)
l:
        movq    y@GOTPCREL(%rip), %rax

Since stub inspection requires cooperation with RuntimeDyldImpl this patch
pimpl-ifies RuntimeDyldChecker. Its implementation is moved in to a new class,
RuntimeDyldCheckerImpl, that has access to the definition of RuntimeDyldImpl.

llvm-svn: 213698
2014-07-22 22:47:39 +00:00
Duncan P. N. Exon Smith 6c99015fe2 Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."
This reverts commit r213474 (and r213475), which causes a miscompile on
a stage2 LTO build.  I'll reply on the list in a moment.

llvm-svn: 213562
2014-07-21 17:06:51 +00:00
David Blaikie 4b9ae52ac1 Correct the ownership passing semantics of object::createBinary and make them explicit in the type system.
createBinary documented that it destroyed the parameter in error cases,
though by observation it does not. By passing the unique_ptr by value
rather than lvalue reference, callers are now explicit about passing
ownership and the function implements the documented contract. Remove
the explicit documentation, since now the behavior cannot be anything
other than what was documented, so it's redundant.

Also drops a unique_ptr::release in llvm-nm that was always run on a
null unique_ptr anyway.

llvm-svn: 213557
2014-07-21 16:26:24 +00:00
Manuel Jacob d11beffef4 [C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges.
Summary: This patch introduces two new iterator ranges and updates existing code to use it.  No functional change intended.

Test Plan: All tests (make check-all) still pass.

Reviewers: dblaikie

Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4481

llvm-svn: 213474
2014-07-20 09:10:11 +00:00
Kevin Enderby be84b295b9 Tweak formating to match what clang-format would be for llvm-nm.cpp .
No functional change.

llvm-svn: 213330
2014-07-17 22:56:27 +00:00
Kevin Enderby 407cc21c32 Add printing of Mach-O stabs in llvm-nm.
llvm-svn: 213327
2014-07-17 22:47:16 +00:00
Kevin Enderby 77b968e1e1 Add the "-x" flag to llvm-nm for Mach-O files that prints the fields of a symbol in hex.
(generally use for debugging the tools).  This is same functionality as darwin’s
nm(1) "-x" flag.

llvm-svn: 213176
2014-07-16 17:38:26 +00:00
NAKAMURA Takumi 04b8b37f56 Prune Redundant libdeps in CMake's target_link_libraries and LLVMBuild.txt.
I checked this with Release+Asserts on x86_64-mingw32. Please restore partially if this were overkill.

llvm-svn: 213064
2014-07-15 11:37:03 +00:00
Justin Bogner 759645ea89 Support: Fix option handling when using cl::Required with aliasopt
Until now, attempting to create an alias of a required option would
complain if the user supplied the alias, because the required option
didn't have a value. Similarly, if you said the alias was required,
then using the base option would complain that the alias wasn't
supplied. Lastly, if you put required on both, *neither* option would
work.

By changning alias to overload addOccurrence and setting cl::Required
on the original option, we can get this to behave in a more useful
way. I've also added a test and updated a user that was getting this
wrong.

llvm-svn: 212986
2014-07-14 20:53:57 +00:00
David Majnemer 8f6b04cb57 llvm-objdump: Handle BSS sections larger than the object file
The size of the uninitialized sections, like BSS, can exceed the size of
the object file.

Do not attempt to grab the contents of such sections.

llvm-svn: 212953
2014-07-14 16:20:14 +00:00
NAKAMURA Takumi 23b702c8de [CMake] Update libdeps.
llvm-svn: 212920
2014-07-14 05:01:53 +00:00
Simon Atanasyan 1cd169f137 [Mips] Support SHT_MIPS_ABIFLAGS section type flag in the llvm-readobj,
obj2yaml and yaml2obj tools.

llvm-svn: 212908
2014-07-13 15:28:54 +00:00
NAKAMURA Takumi c4fc6eec53 [CMake] Add LLVM_LINK_COMPONENTS to loadable modules, LLVMHello and BugpointPasses, on Win32.
llvm-svn: 212904
2014-07-13 13:36:48 +00:00
NAKAMURA Takumi f0e30f6e5b bugpoint/ToolRunner.cpp: ProcessFailure(): Close ErrorFD immediately, or it couldn't be reopened on Win32.
FIXME: We may have an option in openFileForWrite(), not to use ResultFD but to close it.
llvm-svn: 212902
2014-07-13 13:28:18 +00:00
Kevin Enderby fe6ad97ca8 Add the "-s" flag to llvm-nm for Mach-O files that prints symbols only in
the specified section.  This is same functionality as darwin’s nm(1) "-s" flag.

There is one FIXME in the code and I’m all ears to anyone that can help me
with that.  This option takes exactly two strings and should be allowed
anywhere on the command line.  Such that "llvm-nm -s __TEXT __text foo.o"
would work. But that does not as the CommandLine Library does not have a
way to make this work as far as I can tell.  For now the "-s __TEXT __text"
has to be last on the command line.

llvm-svn: 212842
2014-07-11 20:30:00 +00:00
Kevin Enderby 8da4bd60fb Changed the lvm-nm alias "-s" for -print-armap to "-M".
This will allow the "-s" flag to implemented in the future as it
is in darwin’s nm(1) to list symbols only in the specified section.

Given a LGTM by Shankar Easwaran who originally implemented
the support for lvm-nm’s -print-armap and archive map symbols.

llvm-svn: 212576
2014-07-08 23:47:31 +00:00
Rafael Espindola 44cb242dda Use raw_fd_ostream instead of std::ofstream.
llvm-svn: 212483
2014-07-07 20:34:51 +00:00
Rafael Espindola adf21f2a56 Update the MemoryBuffer API to use ErrorOr.
llvm-svn: 212405
2014-07-06 17:43:13 +00:00
Rafael Espindola e54d821671 Declare variable on first use.
llvm-svn: 212403
2014-07-06 14:31:22 +00:00
Rafael Espindola 8026bd0b2a This only needs a StringRef.
llvm-svn: 212401
2014-07-06 14:17:29 +00:00
Alp Toker a55b95b58a SourceMgr: make valid buffer IDs start from one
Use 0 for the invalid buffer instead of -1/~0 and switch to unsigned
representation to enable more idiomatic usage.

Also introduce a trivial SourceMgr::getMainFileID() instead of hard-coding 0/1
to identify the main file.

llvm-svn: 212398
2014-07-06 10:33:31 +00:00
Simon Atanasyan 5a63aa305d [llvm-readobj] Fix output of MIPS GOT without local and global entries.
llvm-svn: 212374
2014-07-05 19:28:49 +00:00
Rafael Espindola d749fb5129 Change LTOModule`s getTargetTriple and setTargetTriple to use c++ types.
llvm-svn: 212343
2014-07-04 14:19:41 +00:00
Tim Northover 07f99fb769 llvm-readobj: fix MachO relocatoin printing a bit.
There were two issues here:
1. At the very least, scattered relocations cannot use the same code to
   determine the corresponding symbol being referred to. For some reason we
   pretend there is no symbol, even when one actually exists in the symtab, so to
   match this behaviour getRelocationSymbol should simply return symbols_end for
   scattered relocations.
2. Printing "-" when we can't get a symbol (including the scattered case, but
   not exclusively), isn't that helpful. In both cases there *is* interesting
   information in that field, so we should print it. As hex will do.

Small part of rdar://problem/17553104

llvm-svn: 212332
2014-07-04 10:57:56 +00:00
Alp Toker ac90380b5e Sink undesirable LTO functions into the old C API
We want to encourage users of the C++ LTO API to reuse memory buffers instead
of repeatedly opening and reading the same file contents.

This reverts commit r212305 and implements a tidier scheme.

llvm-svn: 212308
2014-07-04 00:58:41 +00:00
Peter Collingbourne 1505c0a4be gold plugin: move target initialization to the top of the onload function.
On at least my machine, ar does not register an all symbols read hook (which
previously triggered target initialization), but it does register a claim
files hook, which depends on the targets being initialized.

Differential Revision: http://reviews.llvm.org/D4372

llvm-svn: 212303
2014-07-03 23:28:03 +00:00
Peter Collingbourne 63086fe166 LTO: rename the various makeLTOModule overloads.
This rename makes it easier to identify the specific overload being called
in each particular case and makes future refactorings easier.

Differential Revision: http://reviews.llvm.org/D4370

llvm-svn: 212302
2014-07-03 23:28:00 +00:00
Kevin Enderby 0fd8aac5da Add the -just-symbol-name (aka -j) flag to llvm-nm to just print the
symbol’s name.  On darwin the -j flag is used (often in combinations
with other flags) to produce a complete list of symbol names which
than can then be reorder and used with ld(1)’s -order_file.

llvm-svn: 212294
2014-07-03 21:51:07 +00:00
Rafael Espindola 8e8debc756 Add support for inline asm symbols in llvm-ar.
This should allow llvm-ar to be used instead of gnu ar + plugin in a LTO
build. I will add a release note about it once I finish a LTO bootstrap with it.

llvm-svn: 212287
2014-07-03 19:40:08 +00:00
Rafael Espindola 99a664a84f fix configure+make build
llvm-svn: 212283
2014-07-03 19:09:53 +00:00
Rafael Espindola 13b69d63e6 Add support for inline asm symbols to IRObjectFile.
This also enables it in llvm-nm so that it can be tested.

llvm-svn: 212282
2014-07-03 18:59:23 +00:00
Kevin Enderby acaaf903e8 Add the -U flag to llvm-nm as an alias to -defined-only
as darwin’s nm(1) uses -U for this functionality.

llvm-svn: 212280
2014-07-03 18:18:50 +00:00
Rafael Espindola 97de474a36 Invert the MC -> Object dependency.
Now that we have a lib/MC/MCAnalysis, the dependency was there just because
of two helper classes. Move the two over to MC.

This will allow IRObjectFile to parse inline assembly.

llvm-svn: 212248
2014-07-03 02:01:39 +00:00
Kevin Enderby 25a614bccc Add the -reverse-sort flag (aka -r) to llvm-nm
which exists in other Unix nm(1)’s.

llvm-svn: 212235
2014-07-02 23:23:58 +00:00
Rafael Espindola e1865a8e8c Fix configure+make build.
llvm-svn: 212210
2014-07-02 20:05:48 +00:00
Rafael Espindola cbc5ac7a7e Move CFG building code to a new lib/MC/MCAnalysis library.
The new library is 150KB on a Release+Asserts build, so it is quiet a bit of
code that regular users of MC don't need to link with now.

llvm-svn: 212209
2014-07-02 19:49:34 +00:00
Kevin Enderby 8f6dcf5fe1 Also run clang-format on llvm-nm.cpp to tidy things up. No functional changes.
llvm-svn: 212143
2014-07-01 22:44:51 +00:00
Kevin Enderby 107697470e Run clang-format on llvm-size.cpp to tidy things up. No functional changes.
llvm-svn: 212141
2014-07-01 22:26:31 +00:00
Kevin Enderby afef4c99dc Add the -arch flag support to llvm-size like what was done to llvm-nm
to select the slice out of a Mach-O universal file.  This also includes
support for -arch all, selecting the host architecture by default from
a universal file and checking if -arch is used with a standard Mach-O
it matches that architecture.

llvm-svn: 212108
2014-07-01 17:19:10 +00:00
Benjamin Kramer 0e18484696 Rephrase loop so it doesn't leave unused bools around in Release mode.
llvm-svn: 212102
2014-07-01 14:46:44 +00:00
Kevin Enderby 4c8dfe4d0f Add the -arch flag support to llvm-nm to select the slice out of a Mach-O
universal file.  This also includes support for -arch all, selecting the host
architecture by default from a universal file and checking if -arch is used
with a standard Mach-O it matches that architecture.

llvm-svn: 212054
2014-06-30 18:45:23 +00:00
Tim Northover 8f9590b622 macho-dump: add code to print LC_ID_DYLIB load commands.
I want to check them in lld.

llvm-svn: 212043
2014-06-30 14:40:57 +00:00
Rafael Espindola 75556bc01b Simplify code a bit, no functionality change.
llvm-svn: 211985
2014-06-28 17:46:19 +00:00
Justin Bogner 035fcf7115 llvm-cov: Support specifying multiple source files
Make llvm-cov compatible with gcov for cases where multiple files are
specified on the command line. That is, loop over each one and report
coverage, and report errors on stderr only rather than via return
code.

llvm-svn: 211959
2014-06-27 20:41:25 +00:00
Lang Hames e1c1138a38 [RuntimeDyld] Add a framework for testing relocation logic in RuntimeDyld.
This patch adds a "-verify" mode to the llvm-rtdyld utility. In verify mode,
llvm-rtdyld will test supplied expressions against the linked program images
that it creates in memory. This scheme can be used to verify the correctness
of the relocation logic applied by RuntimeDyld.

The expressions to test will be read out of files passed via the -check option
(there may be more than one of these). Expressions to check are extracted from
lines of the form:
# rtdyld-check: <expression>

This system is designed to fit the llvm-lit regression test workflow. It is
format and target agnostic, and supports verification of images linked for
remote targets. The expression language is defined in
llvm/include/llvm/RuntimeDyldChecker.h . Examples can be found in
test/ExecutionEngine/RuntimeDyld.

llvm-svn: 211956
2014-06-27 20:20:57 +00:00
Saleem Abdulrasool d90f86d53c Support: update DLLCharacteristics enumeration
Add the new AppContainer characteristic which is import for Windows Store
(Metro) compatible applications.  Add the new Control Flow Guard flag to bring
the enumeration up to date with the current values as of Windows 8.1.

llvm-svn: 211855
2014-06-27 03:11:18 +00:00
Rafael Espindola 3ef98ff5f9 Don't force the build of toos/lto as a static lib.
Any uses of tools/lto as a static lib should probably move to lib/LTO.
This was also never implemented in the configure build, so this reduces
the differences among the two.

llvm-svn: 211852
2014-06-27 02:51:21 +00:00
Alp Toker e69170a110 Revert "Introduce a string_ostream string builder facilty"
Temporarily back out commits r211749, r211752 and r211754.

llvm-svn: 211814
2014-06-26 22:52:05 +00:00
Tom Roeder b508119fb6 Fix the new LTOCodeGenerator setup in gold to parse options before using MAttrs.
This fixes a regression that made clang -flto -Wl,--plugin-opt=-mattr=+aes not
pass the "+aes" option to the LTOCodeGenerator attributes.

llvm-svn: 211804
2014-06-26 20:43:27 +00:00
Alp Toker 614717388c Introduce a string_ostream string builder facilty
string_ostream is a safe and efficient string builder that combines opaque
stack storage with a built-in ostream interface.

small_string_ostream<bytes> additionally permits an explicit stack storage size
other than the default 128 bytes to be provided. Beyond that, storage is
transferred to the heap.

This convenient class can be used in most places an
std::string+raw_string_ostream pair or SmallString<>+raw_svector_ostream pair
would previously have been used, in order to guarantee consistent access
without byte truncation.

The patch also converts much of LLVM to use the new facility. These changes
include several probable bug fixes for truncated output, a programming error
that's no longer possible with the new interface.

llvm-svn: 211749
2014-06-26 00:00:48 +00:00
Alexey Volkov 2ecf636073 Fix unresolved symbols when loading gold plugin
Differential Revision: http://reviews.llvm.org/D4275

llvm-svn: 211675
2014-06-25 08:04:58 +00:00
Rafael Espindola 2e60ca964c Pass a unique_ptr<MemoryBuffer> to the constructors in the Binary hierarchy.
Once the objects are constructed, they own the buffer. Passing a unique_ptr
makes that clear.

llvm-svn: 211595
2014-06-24 13:56:32 +00:00
Rafael Espindola 6304e94108 Pass a std::unique_ptr& to the create??? methods is lib/Object.
This makes the buffer ownership on error conditions very natural. The buffer
is only moved out of the argument if an object is constructed that now
owns the buffer.

llvm-svn: 211546
2014-06-23 22:00:37 +00:00
Rafael Espindola c3f9b5a534 Make ObjectFile and BitcodeReader always own the MemoryBuffer.
This allows us to just use a std::unique_ptr to store the pointer to the buffer.
The flip side is that they have to support releasing the buffer back to the
caller.

Overall this looks like a more efficient and less brittle api.

llvm-svn: 211542
2014-06-23 21:53:12 +00:00
Rafael Espindola 62b1344a64 Simplify memory management with std::unique_ptr.
llvm-svn: 211538
2014-06-23 21:15:27 +00:00
Rafael Espindola 4f7932b2fe Convert a few methods to use ErrorOr.
It used to be inconvenient to mix ErrorOr and UniquePtr, but with c++11
they work OK together.

llvm-svn: 211532
2014-06-23 20:41:02 +00:00
Kevin Enderby 4fc2edb023 Change the default input for llvm-nm to be a.out instead of standard input
to match llvm-size and other UNIX systems for their nm(1).

Tweak test cases that used llvm-nm with standard input to add a "-" to
indicate that and add a test case to check the default of a.out for llvm-nm.

llvm-svn: 211529
2014-06-23 20:27:53 +00:00
Kevin Enderby 26646108c9 Fix some double printing of filenames for archives in llvm-nm when
the tool is given multiple files.  Also fix the same issue with Mach-O
universal files. And fix the newline spacing to separate the output
in these cases.

llvm-svn: 211405
2014-06-20 21:29:27 +00:00
Rafael Espindola bfb8b9152b Small clanups:
Use static instead of anonymous namespace.
Delete write only variables.

llvm-svn: 211335
2014-06-20 01:37:35 +00:00
Kevin Enderby 14a96ac343 Added the -m option as an alias for -format=darwin to llvm-nm and llvm-size
which is what the darwin tools use for the Mach-O format output.

llvm-svn: 211326
2014-06-20 00:04:16 +00:00
Rafael Espindola 562e0d8023 The gold plugin doesn't need disassemblers.
Back in r128440 tools/LTO started exporting the disassembler interface. It
was never clear why, but whatever the reason I am pretty sure it doesn't hold
for tools/gold.

llvm-svn: 211325
2014-06-19 23:06:53 +00:00
Rafael Espindola c273aac3a1 Set gold plugin options in a sane order.
This fixes the  processing of --plugin-opt=-jump-table-type=arity.

Nice properties:
 * We call InitTargetOptionsFromCodeGenFlags once.
 * We call parseCodeGenDebugOptions once.
 * It works :-)

llvm-svn: 211322
2014-06-19 22:54:47 +00:00
Kevin Enderby 1e1b992ad7 Fix the output of llvm-nm for Mach-O files to use the characters ‘d’ and ‘b’ for
data and bss symbols instead of the generic ’s’ for a symbol in a section.

llvm-svn: 211321
2014-06-19 22:49:21 +00:00
Rafael Espindola b201bfcbce Simplify. No functionality change.
Thanks to Alp Toker for noticing it.

llvm-svn: 211320
2014-06-19 22:33:23 +00:00
Rafael Espindola a0d30a9977 Reduce indentation. No functionality change.
llvm-svn: 211318
2014-06-19 22:20:07 +00:00
Kevin Enderby 1983fcf86c Change the output of llvm-nm and llvm-size for Mach-O universal files (aka
fat files) to print “ (for architecture XYZ)” for fat files with more than
one architecture to be like what the darwin tools do for fat files.

Also clean up the Mach-O printing of archive membernames in llvm-nm to use
the darwin form of "libx.a(foo.o)".

llvm-svn: 211316
2014-06-19 22:03:18 +00:00
Rafael Espindola 6b244b1348 Use lib/LTO directly in the gold plugin.
The tools/lto API is not the best choice for implementing a gold plugin. Among
other issues:

* It is an stable ABI. Old errors stay and we have to be really careful
  before adding new features.
* It has to support two fairly different linkers: gold and ld64.
* We end up with a plugin that depends on a shared lib, something quiet
  unusual in LLVM land.
* It hides LLVM. For some features in the gold plugin it would be really
  nice to be able to just get a Module or a GlobalValue.

This change is intended to be a very direct translation from the C API. It
will just enable other fixes and cleanups.

Tested with a LTO bootstrap on linux.

llvm-svn: 211315
2014-06-19 21:14:13 +00:00
Rafael Espindola 64a86e5fc2 Remove an incorrect fixme.
dynamic-no-pic is just another output type. If gnu ld gets support for MachO,
it should also add something like LDPO_DYN_NO_PIC to the plugin interface.

llvm-svn: 211305
2014-06-19 19:45:25 +00:00
Alp Toker ec9b42a907 Remove unused includes following r211294
llvm-svn: 211297
2014-06-19 19:25:49 +00:00
Rafael Espindola 77c50d2394 Use the c++ APIs.
No functionality change.

llvm-svn: 211294
2014-06-19 19:11:22 +00:00
Eric Christopher 4c5bff36ad Move -dwarf-version to an MC level command line option so it's
used by all of the MC level tools and codegen. Fix up all uses
in the compiler to use this and set it on the context accordingly.

llvm-svn: 211257
2014-06-19 06:22:08 +00:00
Eric Christopher 23c6d1f41a 80-column fixups.
llvm-svn: 211255
2014-06-19 06:22:01 +00:00
Kevin Enderby 4b8fc281d4 Teach llvm-size to know about Mach-O universal files (aka fat files) and
fat files containing archives.

Also fix a bug in MachOUniversalBinary::ObjectForArch::ObjectForArch()
where it needed a >= when comparing the Index with the number of
objects in a fat file.  As the index starts at 0.

llvm-svn: 211230
2014-06-18 22:04:40 +00:00
Rafael Espindola 1fe2c5ab27 Add a symbols() range and use a range loop.
llvm-svn: 211222
2014-06-18 21:14:57 +00:00
Rafael Espindola 794112a91f Simplify code.
We can delete the objects earlier now that we are copying the names to a buffer.

llvm-svn: 211221
2014-06-18 21:08:17 +00:00
Simon Atanasyan c217c4047a [llvm-readobj] Fix member functions name style.
llvm-svn: 211152
2014-06-18 09:24:01 +00:00
Simon Atanasyan a4ba8ec792 [llvm-readobj] Fix compile error.
llvm-svn: 211151
2014-06-18 09:23:55 +00:00
Simon Atanasyan 80433900cc [llvm-readobj][ELF] New `-mips-plt-got` command line option to output
MIPS GOT section.

Patch reviewed by Rafael Espindola.

llvm-svn: 211150
2014-06-18 08:47:09 +00:00
Kevin Enderby 246a460d1f Add "-format darwin" to llvm-size to be like darwin's size(1) -m output, and
and the -l option for the long format.  Also when the object is a Mach-O
file and the format is berkeley produce output like darwin’s default size(1)
summary berkeley derived output.

Like System V format, there are also some small changes in how and where
the file names and archive member names are printed for darwin and
Mach-O.

Like the changes to llvm-nm these are the first steps in seeing if it is
possible to make llvm-size produce the same output as darwin's size(1).

llvm-svn: 211117
2014-06-17 17:54:13 +00:00
Rafael Espindola ae460027a4 Convert the Archive API to use ErrorOr.
Now that we have c++11, even things like ErrorOr<std::unique_ptr<...>> are
easy to use.

No intended functionality change.

llvm-svn: 211033
2014-06-16 16:08:36 +00:00
Rafael Espindola 2a826e40fa Finishing touch for the std::error_code transition.
While std::error_code itself seems to work OK in all platforms, there
are few annoying differences with regards to the std::errc enumeration.

This patch adds a simple llvm enumeration, which will hopefully avoid build
breakages in other platforms and surprises as we get more uses of
std::error_code.

llvm-svn: 210920
2014-06-13 17:20:48 +00:00
Tobias Grosser 9190e0dd62 opt: Initialize asm printers
Without initializing the assembly printers a shared library build of opt is
linked with these libraries whereas for a static build these libraries are dead
code eliminated. This is unfortunate for plugins in case they want to use them,
as they neither can rely on opt to provide this functionality nor can they link
the printers in themselves as this breaks with a shared object build of opt.

This patch calls InitializeAllAsmPrinters() from opt, which increases the static
binary size from 50MB -> 52MB on my system (all backends compiled) and causes no
measurable increase in the time needed to run 'make check'.

llvm-svn: 210914
2014-06-13 16:12:08 +00:00
Rafael Espindola 54f1997979 Remove unused and odd code.
This code was never being used and any use of it would look fairly strange.
For example, it would try to map a object_error::parse_failed to
std::errc::invalid_argument.

llvm-svn: 210912
2014-06-13 15:36:17 +00:00
Rafael Espindola 4453e42945 Remove 'using std::error_code' from tools.
llvm-svn: 210876
2014-06-13 03:07:50 +00:00
Rafael Espindola bff5d0d16a Remove all uses of 'using std::error_code' from headers.
llvm-svn: 210866
2014-06-13 01:25:41 +00:00
Rafael Espindola 3acea39853 Don't use 'using std::error_code' in include/llvm.
This should make sure that most new uses use the std prefix.

llvm-svn: 210835
2014-06-12 21:46:39 +00:00
Rafael Espindola a6e9c3e43a Remove system_error.h.
This is a minimal change to remove the header. I will remove the occurrences
of "using std::error_code" in a followup patch.

llvm-svn: 210803
2014-06-12 17:38:55 +00:00
Rafael Espindola 0a5f9cf50d Replace llvm::error_code with std::error_code.
llvm-svn: 210783
2014-06-12 14:11:22 +00:00
Rafael Espindola ed6882b835 Don't import make_error_code into the llvm namespace.
llvm-svn: 210772
2014-06-12 11:58:49 +00:00
Rafael Espindola 25188c95de Don't import error_category into the llvm namespace.
llvm-svn: 210733
2014-06-12 01:45:43 +00:00
Rafael Espindola acc5d7c911 Don't import error_condition into the llvm namespace.
llvm-svn: 210731
2014-06-12 01:29:42 +00:00
Jim Grosbach 3fdf7cfba0 llvm-mc: Add option for prefering hex format disassembly.
Previously there was a separate mode entirely (--hdis vs.
--disassemble). It makes a bit more sense for the immediate printing
style to be a flag for --disassmeble rather than an entirely different
thing.

llvm-svn: 210700
2014-06-11 20:26:40 +00:00
Rafael Espindola 5c4f829424 Use std::error_code instead of llvm::error_code.
The idea of this patch is to turn llvm/Support/system_error.h into a
transitional header that just brings in the erorr_code api to the llvm
namespace. I will remove it shortly afterwards.

The cases where the general idea needed some tweaking:

* std::errc is a namespace in msvc, so we cannot use "using std::errc". I could
add an #ifdef, but there were not that many uses, so I just added std:: to
them in this patch.

* Template specialization had to be moved to the std namespace in this
patch set already.

* The msvc implementation of default_error_condition doesn't seem to
provide the same transformations as we need. Not too surprising since
the standard doesn't actually say what "equivalent" means. I fixed the
problem by keeping our old mapping and using it at error_code
construction time.

Despite these shortcomings I think this is still a good thing. Some reasons:

* The different implementations of system_error might improve over time.
* It removes 925 lines of code from llvm already.
* It removes 6313 bytes from the text segment of the clang binary when
it is built with gcc and 2816 bytes when building with clang and
libstdc++.

llvm-svn: 210687
2014-06-11 19:05:50 +00:00
Rafael Espindola 933c9509da Use an enum class.
llvm-svn: 210623
2014-06-11 01:22:20 +00:00
Rafael Espindola 674910d331 Use an enum class.
llvm-svn: 210620
2014-06-11 01:09:09 +00:00
Rafael Espindola f5d07fa586 Mark a few functions noexcept.
This reduces the difference between std::error_code and llvm::error_code.

llvm-svn: 210591
2014-06-10 21:26:47 +00:00
Simon Atanasyan 414736ee24 [llvm-readobj][ELF] Factor out the code retrieve ELF symbol information
(section name, section index, full name) into the separate functions.

No functional changes.

llvm-svn: 210509
2014-06-10 05:59:15 +00:00
Saleem Abdulrasool c86b54c86d tools: add a high level explanation for WoA EH data
Add a brief explanation of the data section layout for the unwind data that the
Windows on ARM EH models.  This is simply to provide a rough idea of the layout
of the code involved in the decoding of the unwinding.  Details on the involved
data structures are available in the associated support header.  The bulk of it
is related to printing out the byte-code to help validate generation of WoA EH.

No functional change.

llvm-svn: 210397
2014-06-07 19:23:07 +00:00
Simon Atanasyan 65e6467e69 [yaml2obj][obj2yaml] Support ELF symbol's visibility flags (default/hidden/protected).
llvm-svn: 210316
2014-06-06 07:41:57 +00:00
Kevin Enderby 980b25840f Add "-format darwin" to llvm-nm to be like darwin's nm(1) -m output.
This is a first step in seeing if it is possible to make llvm-nm produce
the same output as darwin's nm(1).  Darwin's default format is bsd but its
-m output prints the longer Mach-O specific details.  For now I added the
"-format darwin" to do this (whos name may need to change in the future).
As there are other Mach-O specific flags to nm(1) which I'm hoping to add some
how in the future.  But I wanted to see if I could get the correct output for
-m flag using llvm-nm and the libObject interfaces.

I got this working but would love to hear what others think about this approach
to getting object/format specific details printed with llvm-nm.

llvm-svn: 210285
2014-06-05 21:21:57 +00:00
Iain Sandoe 5248f9f0a5 lld (build with configur and make) Enable build
r210177 added Makefiles to the lld project. 
This revision enables the automatic build of lld when the sources are found in tools/lld.

llvm-svn: 210245
2014-06-05 08:49:55 +00:00
Saleem Abdulrasool 72e9a25c76 tools: fix parenthesis warning from GCC
Add parenthesis as suggested by GCC.

llvm-svn: 210194
2014-06-04 16:03:20 +00:00
Saleem Abdulrasool 8c49170879 tools: fix silly typo in llvm-readobj
Case insensitive case preserving file systems are not a good choice for
development.

llvm-svn: 210193
2014-06-04 16:03:18 +00:00
Saleem Abdulrasool e6971cab30 tools: initial implementation of WoA EH decoding
Add support to llvm-readobj to decode Windows ARM Exception Handling data.  This
uses the previously added datastructures to decode the information into a format
that can be used by tests.  This is a necessary step to add support for emitting
Windows on ARM exception handling information.

A fair amount of formatting inspiration is drawn from the Win64 EH printer as
well as the ARM EHABI printer.  This allows for a reasonably thorough look into
the encoded data.

llvm-svn: 210192
2014-06-04 15:47:15 +00:00
Saleem Abdulrasool 6ba36dc132 tools: introduce StreamWriter::printBoolean
Add a helper print method to print a boolean value as "Yes" or "No".  This is
intended to be used by the Windows ARM EH printer.

llvm-svn: 210191
2014-06-04 15:47:11 +00:00
Simon Atanasyan 28a1160bc6 [Object][ELF] Range-based loop simplification.
No functional changes.

llvm-svn: 210164
2014-06-04 05:51:44 +00:00
Rafael Espindola 64c1e18033 Allow alias to point to an arbitrary ConstantExpr.
This  patch changes GlobalAlias to point to an arbitrary ConstantExpr and it is
up to MC (or the system assembler) to decide if that expression is valid or not.

This reduces our ability to diagnose invalid uses and how early we can spot
them, but it also lets us do things like

@test5 = alias inttoptr(i32 sub (i32 ptrtoint (i32* @test2 to i32),
                                 i32 ptrtoint (i32* @bar to i32)) to i32*)

An important implication of this patch is that the notion of aliased global
doesn't exist any more. The alias has to encode the information needed to
access it in its metadata (linkage, visibility, type, etc).

Another consequence to notice is that getSection has to return a "const char *".
It could return a NullTerminatedStringRef if there was such a thing, but when
that was proposed the decision was to just uses "const char*" for that.

llvm-svn: 210062
2014-06-03 02:41:57 +00:00
Simon Atanasyan f97af8a084 [yaml2obj] Add new command line option `-docnum`.
Input YAML file might contain multiple object file definitions.
New option `-docnum` allows to specify an ordinal number (starting from 1)
of definition used for an object file generation.

Patch reviewed by Sean Silva.

llvm-svn: 209967
2014-05-31 04:51:07 +00:00
Rafael Espindola a3f2e3f01e There is no std::errc::success, remove the llvm one.
llvm-svn: 209960
2014-05-31 03:21:04 +00:00
Rafael Espindola 882ce87b2e Turn errc and windows_error into enum classes.
llvm-svn: 209957
2014-05-31 02:29:28 +00:00
Tim Northover eaef074d45 MachO: support N_INDR aliases in assembly files.
This makes LLVM create N_INDR aliases (to be resolved by the linker) when
appropriate.

rdar://problem/15125513

llvm-svn: 209894
2014-05-30 13:22:59 +00:00
Simon Atanasyan 8745993ec4 [elf2yaml][ELF] Move Info field to the RelocationSection structure. This
field represents ELF section header sh_info field and does not have any
sense for regular sections. Its interpretation depends on section type.

llvm-svn: 209801
2014-05-29 11:05:31 +00:00
Saleem Abdulrasool 65dbbb5dd6 tools: avoid use of std::function
Remove the use of the std::function and replace the capturing lambda with a
non-capturing one, opting to pass the user data down to the context.  This is
needed as std::function is not yet available on all hosted platforms (it
requires RTTI, which breaks on Windows).

Thanks to Nico Rieck for pointing this out!

llvm-svn: 209607
2014-05-25 21:37:59 +00:00
Saleem Abdulrasool e8839a755a tools: split out Win64EHDumper from COFFDumper
Move the implementation of the Win64 EH printer from the COFFDumper into its own
class.  This is in preparation for adding support to print ARM EH information.
The only real change here is in printUnwindInfo where we now lambda lift the
implicit this parameter for the resolveFunction.  Also setup the printing to
handle ARM.  This now has set the stage to introduce ARM EH printing.

llvm-svn: 209606
2014-05-25 20:26:45 +00:00
Saleem Abdulrasool 4e08f62775 tools: inline simple single-use function
This inlines the single use function in preparation for splitting the Win64EH
printing out of the COFFDumper into its own entity.

llvm-svn: 209605
2014-05-25 20:26:40 +00:00
Saleem Abdulrasool 5dd27f42f9 tools: refactor COFFDumper symbol resolution logic
Make the use of the cache more transparent to the users.  There is no reason
that the cached entries really need to be passed along.  The overhead for doing
so is minimal: a single extra parameter.  This requires that some standalone
functions be brought into the COFFDumper class so that they may access the
cache.

llvm-svn: 209604
2014-05-25 20:26:37 +00:00
Saleem Abdulrasool 3617c96d46 tools: use references rather than out pointers in COFFDumper
Switch to use references for parameters that are guaranteed to be non-null.
Simplifies the code a slight bit in preparation for another change.

llvm-svn: 209603
2014-05-25 20:26:33 +00:00
Saleem Abdulrasool 443264c51f build: sort llvm-readobj sources
Sort the source files.  NFC.

llvm-svn: 209587
2014-05-24 20:04:21 +00:00
Saleem Abdulrasool 12688f40c1 llvm-readobj: remove some dead code
llvm-svn: 209586
2014-05-24 19:54:28 +00:00
Filipe Cabecinhas b498859228 llvm-ar: Output the file we errored on.
llvm-svn: 209500
2014-05-23 05:52:12 +00:00
Eric Christopher 472cee3080 Move MCOptions that aren't shared between programs into their specific
program and have them initialize the MCOptions struct explicitly.

llvm-svn: 209321
2014-05-21 21:05:09 +00:00
Eric Christopher 473ec184a2 Make a couple of command lines static and remove an unnecessary
initialization.

llvm-svn: 209320
2014-05-21 21:05:05 +00:00
Eric Christopher dc3e9c75fe This command line option is only used in one place. Move it there and
rename it to something more descriptive.

llvm-svn: 209263
2014-05-21 00:20:01 +00:00
Eric Christopher eb71972887 Move the verbose asm option to be part of the options struct and
set appropriately.

llvm-svn: 209258
2014-05-20 23:59:50 +00:00
Simon Atanasyan 9cb4090867 [Mips] Add more relocation types and MIPS specific e_flags constants.
llvm-svn: 209201
2014-05-20 09:27:49 +00:00
Saleem Abdulrasool 4a6f58380a llvm-readobj: use range-based for loop
Convert an additional site to a range based for loop.  NFC.

llvm-svn: 209194
2014-05-20 05:18:06 +00:00
Alexey Samsonov e321879709 Kill symbolization functionality in llvm-dwarfdump. We have llvm-symbolizer for that.
llvm-svn: 209152
2014-05-19 18:45:32 +00:00
Alexey Samsonov cd01472a9b [DWARF parser] Teach DIContext to fetch short (non-linkage) function names for a given address.
Change --functions option in llvm-symbolizer tool to accept
values "none", "short" or "linkage". Update the tests and docs
accordingly.

llvm-svn: 209050
2014-05-17 00:07:48 +00:00
Rafael Espindola e0098928c9 Delete getAliasedGlobal.
llvm-svn: 209040
2014-05-16 22:37:03 +00:00
Simon Atanasyan b83f380ae4 [yaml2obj][ELF] Add an optional `Size` field to the YAML section declaration.
Now the only method to configure ELF section's content and size is to assign
a hexadecimal string to the `Content` field. Unfortunately this way is
completely useless when you need to declare a really large section.

To solve this problem this patch adds one more optional field `Size`
to the `RawContentSection` structure. When yaml2obj generates an ELF file
it uses the following algorithm:
1. If both `Content` and `Size` fields are missed create an empty section.
2. If only `Content` field is missed take section length from the `Size`
   field and fill the section by zero.
3. If only `Size` field is missed create a section using data from
   the `Content` field.
4. If both `Content` and `Size` fields are provided validate that the `Size`
   value is not less than size of `Content` data. Than take section length
   from the `Size`, fill beginning of the section by `Content` and the rest
   by zero.

Examples
--------
* Create a section 0x10000 bytes long filled by zero
  Name: .data
  Type: SHT_PROGBITS
  Flags: [ SHF_ALLOC ]
  Size: 0x10000

* Create a section 0x10000 bytes long starting from 'CA' 'FE' 'BA' 'BE'
  Name: .data
  Type: SHT_PROGBITS
  Flags: [ SHF_ALLOC ]
  Content: CAFEBABE
  Size: 0x10000

The patch reviewed by Michael Spencer.

llvm-svn: 208995
2014-05-16 16:01:00 +00:00
Alexey Samsonov dce67348a8 [DWARF parser] Use enums instead of bitfields in DILineInfoSpecifier.
It is more appropriate than the current situation, when one flag
(AbsoluteFilePath) is relevant only if another flag is set.

This refactoring would also simplify fetching the short function name
(stored in DW_AT_name) instead of a linkage name returned currently.

No functionality change.

llvm-svn: 208921
2014-05-15 21:24:32 +00:00
Simon Atanasyan 73e047e54c [yaml2obj] Add "-o" command line option to specify an output file name.
llvm-svn: 208900
2014-05-15 16:14:02 +00:00
Eric Christopher e6ece1a0c2 Unify command line handling of MCTargetOptions and remove extra
options and code. No functional change.

llvm-svn: 208833
2014-05-15 01:10:50 +00:00
Kevin Enderby e858a65323 Teach llvm-nm to know about fat archives (aka MachOUniversal files
containing archives).  First step as other tools will be updated next.

llvm-svn: 208812
2014-05-14 21:18:50 +00:00
Simon Atanasyan ae6bb33ac2 [obj2yaml] Support ELF input format in the obj2yaml tool.
The ELF header e_flags field in the MIPS related test cases handled
incorrectly. The obj2yaml prints too many flags. I will fix that in the
next patches.

The patch reviewed by Michael Spencer and Sean Silva.

llvm-svn: 208752
2014-05-14 05:07:47 +00:00
Lang Hames d311c0ea46 [tools][llvm-rtdyld] Add a '-dylib <file>' option to llvm-rtdyld to load shared
libraries before linking and executing the target objects.

This allows programs that use external calls (e.g. to libc) to be run under
llvm-rtdyld.

llvm-svn: 208739
2014-05-13 22:37:41 +00:00
Tom Stellard 9541307c27 autoconf: Fix soname for libLLVM-Major.Minor.so (2nd try)
We were using libLLVM-Major.Minor.Patch.so for the soname, but we
need the soname to stay consistent for all Major.Minor.* releases
otherwise operating system distributors  will need to rebuild all
packages that link with LLVM every time there is a new point release.

This patch also reverses the compatibility symlink, so
libLLVM-Major.Minor.Patch.so is now a symlink that points
to libLLVM-Major-Minor.so.

llvm-svn: 208721
2014-05-13 19:37:03 +00:00
Tom Stellard daeafc5e7f Revert "autoconf: Fix soname for libLLVM-Major.Minor.so"
This reverts commit r208708.

I forgot to run make clean before testing this and it broke tools
linking.

llvm-svn: 208709
2014-05-13 16:35:56 +00:00
Tom Stellard e10c886248 autoconf: Fix soname for libLLVM-Major.Minor.so
We were using libLLVM-Major.Minor.Patch.so for the soname, but we
need the soname to stay consistent for all Major.Minor.* releases
otherwise operating system distributors  will need to rebuild all
packages that link with LLVM every time there is a new point release.

This patch also reverses the compatibility symlink, so
libLLVM-Major.Minor.Patch.so is now a symlink that points
to libLLVM-Major-Minor.so.

llvm-svn: 208708
2014-05-13 16:18:55 +00:00
Kevin Enderby 15e247100a Suggested improvement by Rafael Espindola to use isa<> in a few places
instead of dyn_cast<>.

llvm-svn: 208628
2014-05-12 20:45:00 +00:00
Simon Atanasyan ca8b562709 [llvm-readobj] Print values of FLAGS and MIPS_FLAGS dynamic table tags
in a human readable form.

llvm-svn: 208489
2014-05-11 08:48:09 +00:00
Kevin Enderby 6abc2e58ac Fix llvm-nm to print the full 64-bit address for symbols in 64-bit object files.
The implementation might be better to have a method is64Bit() in the class
SymbolicFile instead of having the static routine isSymbolList64Bit() in
llvm-nm.cpp .  But this is very much in the sprit of isObject() and
getNMTypeChar() in llvm-nm.cpp that has a series of if else statements
based on the specific class of the SymbolicFile.  I can update this if
folks would like.

Also the tests were updated to be explicit about checking the address for
64-bits or 32-bits from object files.

llvm-svn: 208463
2014-05-09 23:57:49 +00:00
Rafael Espindola bfe44e1dc6 Use range loops.
llvm-svn: 208353
2014-05-08 19:30:17 +00:00
Rafael Espindola 566fcfe69b Remove the UseCFI option from createAsmStreamer.
We were already always passing true, this just removes the option.

llvm-svn: 208205
2014-05-07 13:00:43 +00:00
Simon Atanasyan ba5929771a [obj2yaml] Recognize input file format using llvm::object::ObjectFile
interface methods isCOFF().

The '-coff' command line option has been removed. It was not used in any
test cases.

The patch reviewed by Michael Spencer.

llvm-svn: 208157
2014-05-07 05:18:51 +00:00
Justin Bogner 1a18d7caa3 llvm-cov: Implement --no-output
In gcov, there's a -n/--no-output option, which disables the writing
of any .gcov files, so that it emits only the summary info on stdout.
This implements the same behaviour in llvm-cov.

llvm-svn: 208148
2014-05-07 02:11:18 +00:00
Eric Christopher a9f3a5cb37 Have the SubtargetFeature help routine just not return a number and
fall back to the normal path without a cpu. While doing this fix
llc to just exit when we don't have a module to process instead of
asserting.

llvm-svn: 208102
2014-05-06 16:29:50 +00:00
Rafael Espindola 595f54205c Remove the -disable-cfi option.
This also add a release note about it. If this stays I will cleanup MC
next week.

llvm-svn: 207977
2014-05-05 17:33:26 +00:00
Patrik Hagglund 9be9d8725b Fix gcc -pedantic warning in lto.cpp.
llvm-svn: 207959
2014-05-05 12:24:08 +00:00
Rafael Espindola 83ceb8edfb Move LTOModule and LTOCodeGenerator to the llvm namespace.
llvm-svn: 207911
2014-05-03 14:59:52 +00:00
Rafael Espindola b62e6b4535 Style update: don't duplicate comments, they were getting out of sync.
llvm-svn: 207909
2014-05-03 14:34:48 +00:00
Simon Atanasyan 80070b5598 [llvm-readobj] Transform 'switch' with the only 'case' statement
to 'if' statement.

No functional changes,

llvm-svn: 207748
2014-05-01 11:57:40 +00:00
Simon Atanasyan c48c58437d [llvm-readobj] Add support for Mips specific ELF header e_flags.
llvm-svn: 207744
2014-05-01 11:07:19 +00:00
Oliver Stannard 7eacbd5a71 Record the DWARF version in MCContext
Record the DWARF version in MCContext, and use it when
emitting the dwarf version into the debug info.

llvm-svn: 207739
2014-05-01 08:46:02 +00:00
Hans Wennborg 59f0cba30f Use the new StringTableBuilder in yaml2elf
http://reviews.llvm.org/D3574

llvm-svn: 207694
2014-04-30 19:38:09 +00:00
Hans Wennborg 83e6e1e926 ELFObjectWriter: deduplicate suffices in strtab
We already do this for shstrtab, so might as well do it for strtab. This
extracts the string table building code into a separate class. The idea
is to use it for other object formats too.

I mostly wanted to do this for the general principle, but it does save a
little bit on object file size. I tried this on a clang bootstrap and
saved 0.54% on the sum of object file sizes (1.14 MB out of 212 MB for
a release build).

Differential Revision: http://reviews.llvm.org/D3533

llvm-svn: 207670
2014-04-30 16:25:02 +00:00
Benjamin Kramer d59664f4f7 raw_ostream: Forward declare OpenFlags and include FileSystem.h only where necessary.
llvm-svn: 207593
2014-04-29 23:26:49 +00:00
David Blaikie 7a1e775a7e PR19553: Memory leak in RuntimeDyldELF::createObjectImageFromFile
This starts in MCJIT::getSymbolAddress where the
unique_ptr<object::Binary> is release()d and (after a cast) passed to a
single caller, MCJIT::addObjectFile.

addObjectFile calls RuntimeDyld::loadObject.
RuntimeDld::loadObject calls RuntimeDyldELF::createObjectFromFile

And the pointer is never owned at this point. I say this point, because
the alternative codepath, RuntimeDyldMachO::createObjectFile certainly
does take ownership, so this seemed like a good hint that this was a/the
right place to take ownership.

llvm-svn: 207580
2014-04-29 21:52:46 +00:00
Craig Topper e73658ddbb [C++] Use 'nullptr'.
llvm-svn: 207394
2014-04-28 04:05:08 +00:00
Tom Roeder fd1bc602b3 Add an -mattr option to the gold plugin to support subtarget features in LTO
This adds support for an -mattr option to the gold plugin and to llvm-lto. This
allows the caller to specify details of the subtarget architecture, like +aes,
or +ssse3 on x86.  Note that this requires a change to the include/llvm-c/lto.h
interface: it adds a function lto_codegen_set_attr and it increments the
version of the interface.

llvm-svn: 207279
2014-04-25 21:46:51 +00:00
David Blaikie 37436ed485 BugPoint: Fix some memory leaks.
Patch by Kostya Serebryany.

unique_ptr would be nice, but it's a bit too much work for an area I'm
not familiar with, nor invested in, unfortunately.

llvm-svn: 207265
2014-04-25 20:15:16 +00:00
Duncan P. N. Exon Smith d2b2facb07 SCC: Change clients to use const, NFC
It's fishy to be changing the `std::vector<>` owned by the iterator, and
no one actual does it, so I'm going to remove the ability in a
subsequent commit.  First, update the users.

<rdar://problem/14292693>

llvm-svn: 207252
2014-04-25 18:24:50 +00:00
Craig Topper e6cb63e471 [C++] Use 'nullptr'. Tools edition.
llvm-svn: 207176
2014-04-25 04:24:47 +00:00
Justin Bogner b59d7c73b0 ProfileData: Treat missing function counts as malformed
llvm-svn: 207172
2014-04-25 02:45:33 +00:00
Reid Kleckner 65fc0e2c00 Change llvm-config --ldflags to report ${CMAKE_CXX_LINK_FLAGS}
Should fix PR19526.

When Oscar added this code in the intial CMake build system port, he had
a TODO saying that ${CMAKE_SHARED_LINKER_FLAGS} was probably wrong.  I
agree.  I'm using ${CMAKE_CXX_LINK_FLAGS} to point LLVM at my custom
installation of gcc 4.recent, so that seems more correct.  With this
change, I can build creduce against an installed clang, and it picks up
the write flags from --ldflags.

llvm-svn: 207171
2014-04-25 01:44:20 +00:00
Justin Bogner c67f0250ef llvm-cov: Add support for gcov's --long-file-names option
GCOV provides an option to prepend output file names with the source
file name, to disambiguate between covered data that's included from
multiple sources. Add a flag to llvm-cov that does the same.

llvm-svn: 207035
2014-04-23 21:44:55 +00:00
Justin Bogner bac905c684 llvm-cov: Allow short options to be grouped
llvm-svn: 207034
2014-04-23 21:44:48 +00:00
Evgeniy Stepanov 0a951b775e Create MCTargetOptions.
For now it contains a single flag, SanitizeAddress, which enables
AddressSanitizer instrumentation of inline assembly.

Patch by Yuri Gorshenin.

llvm-svn: 206971
2014-04-23 11:16:03 +00:00
David Blaikie 2f2021ad31 Use unique_ptr to manage ParsedBinariesAndObjects in LLVMSymbolizer
llvm-svn: 206866
2014-04-22 05:26:14 +00:00
Chandler Carruth f98597a163 [Modules] Fix potential ODR violations by sinking the DEBUG_TYPE
definition below all of the header #include lines, tools edition.

llvm-svn: 206848
2014-04-22 03:10:36 +00:00
Chandler Carruth e96dd8975f [Modules] Make Support/Debug.h modular. This requires it to not change
behavior based on other files defining DEBUG_TYPE, which means it cannot
define DEBUG_TYPE at all. This is actually better IMO as it forces folks
to define relevant DEBUG_TYPEs for their files. However, it requires all
files that currently use DEBUG(...) to define a DEBUG_TYPE if they don't
already. I've updated all such files in LLVM and will do the same for
other upstream projects.

This still leaves one important change in how LLVM uses the DEBUG_TYPE
macro going forward: we need to only define the macro *after* header
files have been #include-ed. Previously, this wasn't possible because
Debug.h required the macro to be pre-defined. This commit removes that.
By defining DEBUG_TYPE after the includes two things are fixed:

- Header files that need to provide a DEBUG_TYPE for some inline code
  can do so by defining the macro before their inline code and undef-ing
  it afterward so the macro does not escape.

- We no longer have rampant ODR violations due to including headers with
  different DEBUG_TYPE definitions. This may be mostly an academic
  violation today, but with modules these types of violations are easy
  to check for and potentially very relevant.

Where necessary to suppor headers with DEBUG_TYPE, I have moved the
definitions below the includes in this commit. I plan to move the rest
of the DEBUG_TYPE macros in LLVM in subsequent commits; this one is big
enough.

The comments in Debug.h, which were hilariously out of date already,
have been updated to reflect the recommended practice going forward.

llvm-svn: 206822
2014-04-21 22:55:11 +00:00
Rafael Espindola 6956b1a517 Convert getFileOffset to getOffset and move it to its only user.
We normally don't drop functions from the C API's, but in this case I think we
can:

* The old implementation of getFileOffset was fairly broken
* The introduction of LLVMGetSymbolFileOffset was itself a C api breaking
  change as it removed LLVMGetSymbolOffset.
* It is an incredibly specialized use case. The only reason MCJIT needs it is
  because of its odd position of being a dynamic linker of .o files.

llvm-svn: 206750
2014-04-21 13:45:32 +00:00
Chandler Carruth 572e3407c3 [PM] Add a new-PM-style CGSCC pass manager using the newly added
LazyCallGraph analysis framework. Wire it up all the way through the opt
driver and add some very basic testing that we can build pass pipelines
including these components. Still a lot more to do in terms of testing
that all of this works, but the basic pieces are here.

There is a *lot* of boiler plate here. It's something I'm going to
actively look at reducing, but I don't have any immediate ideas that
don't end up making the code terribly complex in order to fold away the
boilerplate. Until I figure out something to minimize the boilerplate,
almost all of this is based on the code for the existing pass managers,
copied and heavily adjusted to suit the needs of the CGSCC pass
management layer.

The actual CG management still has a bunch of FIXMEs in it. Notably, we
don't do *any* updating of the CG as it is potentially invalidated.
I wanted to get this in place to motivate the new analysis, and add
update APIs to the analysis and the pass management layers in concert to
make sure that the *right* APIs are present.

llvm-svn: 206745
2014-04-21 11:12:00 +00:00
Chandler Carruth 43173421e5 [PM] Wire the analysis passes (such as they are) into the registry, and
teach the opt driver to use it rather than a manual list.

llvm-svn: 206739
2014-04-21 08:20:10 +00:00
Chandler Carruth 589441820e [PM] Add a nice low-tech registry of passes as a boring macro expansion
file. This will make it easy to scale up the number of passes supported.
Currently, it just supports the function and module transformation
passes that were already supported in the opt tool explicitly.

llvm-svn: 206737
2014-04-21 08:08:50 +00:00
Simon Atanasyan 883b44e7d0 [C++11] Range-based loop simplification.
llvm-svn: 206715
2014-04-20 21:05:30 +00:00
Justin Bogner b7aa26303b ProfileData: Add support for the indexed instrprof format
This adds support for an indexed instrumentation based profiling
format, which is just a small header and an on disk hash table.  This
format will be used by clang's -fprofile-instr-use= for PGO.

llvm-svn: 206656
2014-04-18 21:48:40 +00:00
Alexey Samsonov d010999abe [DWARF parser] Turn DILineInfo into a struct.
Immutable DILineInfo doesn't bring any benefits and complicates
code. Also, use std::string instead of SmallString<16> for file
and function names - their length can vary significantly.

No functionality change.

llvm-svn: 206654
2014-04-18 21:36:39 +00:00
Tim Northover 037f26f212 Atomics: promote ARM's IR-based atomics pass to CodeGen.
Still only 32-bit ARM using it at this stage, but the promotion allows
direct testing via opt and is a reasonably self-contained patch on the
way to switching ARM64.

At this point, other targets should be able to make use of it without
too much difficulty if they want. (See ARM64 commit coming soon for an
example).

llvm-svn: 206485
2014-04-17 18:22:47 +00:00
Saleem Abdulrasool 98938f1e0a objdump: identify WoA WinCOFF/ARM correctly
Since LLVM currently only supports WinCOFF, assume that the input is WinCOFF
rather than another type of COFF file (ECOFF/XCOFF).  If the architecture is
detected as thumb (e.g. the file has a IMAGE_FILE_MACHINE_ARMNT magic) then use
a triple of thumbv7-windows.

This allows for objdump to properly handle WoA object files without having to
specify the target triple manually.

llvm-svn: 206446
2014-04-17 06:17:23 +00:00
Saleem Abdulrasool 3b5e00130e tools: fix invalid printing, buffer overrun in llvm-readobj
All auxiliary records are consumed when accessing a File record.

llvm-svn: 206354
2014-04-16 04:15:29 +00:00
Duncan P. N. Exon Smith 6ef5f284d6 verify-di: Implement DebugInfoVerifier
Implement DebugInfoVerifier, which steals verification relying on
DebugInfoFinder from Verifier.

  - Adds LegacyDebugInfoVerifierPassPass, a ModulePass which wraps
    DebugInfoVerifier.  Uses -verify-di command-line flag.

  - Change verifyModule() to invoke DebugInfoVerifier as well as
    Verifier.

  - Add a call to createDebugInfoVerifierPass() wherever there was a
    call to createVerifierPass().

This implementation as a module pass should sidestep efficiency issues,
allowing us to turn debug info verification back on.

<rdar://problem/15500563>

llvm-svn: 206300
2014-04-15 16:27:38 +00:00
Lang Hames a1bc0f5662 [MC] Require an MCContext when constructing an MCDisassembler.
This patch re-introduces the MCContext member that was removed from
MCDisassembler in r206063, and requires that an MCContext be passed in at
MCDisassembler construction time. (Previously the MCContext member had been
initialized in an ad-hoc fashion after construction). The MCCContext member
can be used by MCDisassembler sub-classes to construct constant or
target-specific MCExprs.

This patch updates disassemblers for in-tree targets, and provides the
MCRegisterInfo instance that some disassemblers were using through the
MCContext (previously those backends were constructing their own
MCRegisterInfo instances).

llvm-svn: 206241
2014-04-15 04:40:56 +00:00
Saleem Abdulrasool 13a3f6914b tools: fix heap-buffer-overrun detected via ASAN
Once the auxiliary fields relating to the filename have been inspected, any
following auxiliary fields need not be visited as they have been consumed (the
following fields comprise the filepath as a single unit).

Adjust the test to catch this even if ASAN is not enabled.

llvm-svn: 206190
2014-04-14 16:38:25 +00:00
James Molloy 951e529f66 Teach llvm-lto to respect the given RelocModel.
Patch by Nick Tomlinson!

llvm-svn: 206177
2014-04-14 13:54:16 +00:00
Saleem Abdulrasool 7050eedb61 tools: simplify symbol handling in objdump
Rather than switching behaviour on whether a previous symbol has an auxiliary
symbol record for the next count of elements, simply iterate over the auxiliary
symbols right after processing the current symbol entry.  This makes the
behaviour much simpler to follow and similar to llvm-readobj and yaml2obj.

llvm-svn: 206146
2014-04-14 02:37:28 +00:00
Saleem Abdulrasool d38c6b1e4b tools: address possible non-null terminated filenames
If a filename is a multiple of 18 characters, there will be no null-terminator.
This will result in an invalid access by the constructed StringRef.  Add a test
case to exercise this and fix that handling.  Address this same vulnerability in
llvm-readobj as well.

llvm-svn: 206145
2014-04-14 02:37:23 +00:00
Saleem Abdulrasool 381037066e tools: remove duplication of coff_aux_file
Now that COFF::coff_aux_file is defined, use that rather than redefining the
type locally.

llvm-svn: 206140
2014-04-13 22:54:15 +00:00
Saleem Abdulrasool 63a0dd6540 tools: avoid a string duplication
The auxiliary file records are contiguous and only contain the filename.
Construct a StringRef directly rather than copying to a temporary buffer.

Suggested by majnemer on IRC!

llvm-svn: 206139
2014-04-13 22:54:11 +00:00
Saleem Abdulrasool 9ede5c7dd0 tools: teach objdump about FILE aux records
Add support for file auxiliary symbol entries in COFF symbol tables.  A COFF
symbol table with a FILE entry is followed by sizeof(__FILE__) / 18 auxiliary
symbol records which contain the filename.  Read them and form the original
filename that the record contains.  Then display the name in the output.

llvm-svn: 206126
2014-04-13 03:11:08 +00:00
Saleem Abdulrasool 8cdb9df6a5 tools: remove unnecessary copy of array_lengthof
llvm-svn: 206115
2014-04-12 18:04:27 +00:00
Jim Grosbach dad17727ae llc: Add support for -mcpu=native.
When -mcpu=native is passed, autodetect the host CPU and pass that
as the CPU name to the TargetMachine factory method.

llvm-svn: 206095
2014-04-12 01:34:31 +00:00
Simon Atanasyan 42ac0dd3c3 [yaml2obj][ELF] ELF Relocations Support.
The patch implements support for both relocation record formats: Elf_Rel
and Elf_Rela. It is possible to define relocation against symbol only.
Relocations against sections will be implemented later. Now yaml2obj
recognizes X86_64, MIPS and Hexagon relocation types.

Example of relocation section specification:
Sections:
- Name: .text
  Type: SHT_PROGBITS
  Content: "0000000000000000"
  AddressAlign: 16
  Flags: [SHF_ALLOC]

- Name: .rel.text
  Type: SHT_REL
  Info: .text
  AddressAlign: 4
  Relocations:
    - Offset: 0x1
      Symbol: glob1
      Type: R_MIPS_32
    - Offset: 0x2
      Symbol: glob2
      Type: R_MIPS_CALL16

The patch reviewed by Michael Spencer, Sean Silva, Shankar Easwaran.

llvm-svn: 206017
2014-04-11 04:13:39 +00:00
Simon Atanasyan 35babf9c66 [yaml2obj][ELF] Rename class SectionNameToIdxMap => NameToIdxMap. It can
be used for indexing not only section's names.

No functional changes.

llvm-svn: 205687
2014-04-06 09:02:55 +00:00
Rafael Espindola b4865d698b Revert "Fix a nomenclature error in llvm-nm."
This reverts commit r205479.

It turns out that nm does use addresses, it is just that every reasonable
relocatable ELF object has sections with address 0. I have no idea if those
exist in reality, but it at least it shows that llvm-nm should use the name
address.

The added test was includes an unusual .o file with non 0 section addresses. I
created it by hacking ELFObjectWriter.cpp.

Really sorry for the churn.

llvm-svn: 205493
2014-04-03 00:19:35 +00:00
Rafael Espindola af9129468e Fix a nomenclature error in llvm-nm.
What llvm-nm prints depends on the file format. On ELF for example, if the
file is relocatable, it prints offsets. If it is not, it prints addresses.
Since it doesn't really need to care what it is that it is printing, use the
generic term value.

Fix or implement getSymbolValue to keep llvm-nm working.

llvm-svn: 205479
2014-04-02 22:52:46 +00:00
Duncan P. N. Exon Smith 4680f40d28 Revert "Reapply "LTO: add API to set strategy for -internalize""
This reverts commit r199244.

Conflicts:
	include/llvm-c/lto.h
	include/llvm/LTO/LTOCodeGenerator.h
	lib/LTO/LTOCodeGenerator.cpp

llvm-svn: 205471
2014-04-02 22:05:57 +00:00
Simon Atanasyan 3ee21b014b [yaml2obj][ELF] Convert some static functions into class members to
reduce number of arguments.

No functional changes.

llvm-svn: 205434
2014-04-02 16:34:54 +00:00
Simon Atanasyan ee7776d681 [yaml2obj][ELF] Remove unused typedef.
No functional changes.

llvm-svn: 205433
2014-04-02 16:34:48 +00:00
Simon Atanasyan 220c54a0e3 [yaml2obj][ELF] Move section index to the ELFState class.
No functional changes.

llvm-svn: 205432
2014-04-02 16:34:40 +00:00
Simon Atanasyan ee882239cb [yaml2obj][ELF] Remove relationship between ELFState
and ContiguousBlobAccumulator classes. Pass ContiguousBlobAccumulator to
the handleSymtabSectionHeader function directly.

No functional changes.

llvm-svn: 205431
2014-04-02 16:34:34 +00:00
Daniel Sanders 9cf3d3b764 [yaml2obj] Add support for ELF e_flags.
Summary:
The FileHeader mapping now accepts an optional Flags sequence that accepts
the EF_<arch>_<flag> constants. When not given, Flags defaults to zero.

Reviewers: atanasyan

Reviewed By: atanasyan

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3213

llvm-svn: 205173
2014-03-31 09:44:05 +00:00
Saleem Abdulrasool 37511ecea8 Windows: canonicalise the default windows triple
Canonicalise the default triple that is used on Windows.  This should hopefully
fix the MSVC buildbots.

llvm-svn: 205070
2014-03-29 01:08:53 +00:00
David Blaikie 9c3857cb5e Add missing include (for r205050)
llvm-svn: 205053
2014-03-28 21:00:25 +00:00
David Blaikie 9b620b451a llvm-mc: error when -compress-debug-sections is requested and zlib is not linked
This is a bit of a stab in the dark, since I have zlib on my machine.
Just going to bounce it off the bots & see if it sticks.

Do we have some convention for negative REQUIRES: checks? Or do I just
need to add a feature like I've done here?

llvm-svn: 205050
2014-03-28 20:45:24 +00:00
David Blaikie 7400a97952 DebugInfo: Support for compressed debug info sections
1) When creating a .debug_* section and instead create a .zdebug_
   section.
2) When creating a fragment in a .zdebug_* section, make it a compressed
   fragment.
3) When computing the size of a compressed section, compress the data
   and use the size of the compressed data.
4) Emit the compressed bytes.

Also, check that only if a section has a compressed fragment, then that
is the only fragment in the section.

Assert-fail if the fragment's data is modified after it is compressed.

Initial review on llvm-commits by Eric Christopher and Rafael Espindola.

llvm-svn: 204958
2014-03-27 20:45:58 +00:00
Lang Hames eb37092342 Update MCSymbolizer and its subclasses' constructors to reflect the fact that
they take ownership of the RelocationInfo they're constructed with.

llvm-svn: 204891
2014-03-27 02:39:01 +00:00
Rafael Espindola 10be0837ac Create .symtab_shndxr only when needed.
We need .symtab_shndxr if and only if a symbol references a section with an
index >= 0xff00.

The old code was trying to figure out if the section was needed ahead of time,
making it a fairly dependent on the code actually writing the table. It was
also somewhat conservative and would create the section in cases where it was
not needed.

If I remember correctly, the old structure was there so that the sections were
created in the same order gas creates them. That was valuable when MC's support
for ELF was new and we tested with elf-dump.py.

This patch refactors the symbol table creation to another class and makes it
obvious that .symtab_shndxr is really only created when we are about to output
a reference to a section index >= 0xff00.

While here, also improve the tests to use macros. One file is one section
short of needing .symtab_shndxr, the second one has just the right number.

llvm-svn: 204769
2014-03-25 23:44:25 +00:00
David Blaikie 9c550ac4e7 DebugInfo: Support debug_loc under fission
Implement debug_loc.dwo, as well as llvm-dwarfdump support for dumping
this section.

Outlined in the DWARF5 spec and http://gcc.gnu.org/wiki/DebugFission the
debug_loc.dwo section has more variation than the standard debug_loc,
allowing 3 different forms of entry (plus the end of list entry). GCC
seems to, and Clang certainly, only use one form, so I've just
implemented dumping support for that for now.

It wasn't immediately obvious that there was a good refactoring to share
the implementation of dumping support between debug_loc and
debug_loc.dwo, so they're separate for now - ideas welcome or I may come
back to it at some point.

As per a comment in the code, we could choose different forms that may
reduce the number of debug_addr entries we emit, but that will require
further study.

llvm-svn: 204697
2014-03-25 01:44:02 +00:00
Hans Wennborg 9c8f1a7b11 VS integration installer: set SUCCESS=1 if we find VS 2013
Previously we would print an error message on machines where the only VS
version we find is 2013, even though we successfully install the integration
files for it.

Also, we shouldn't have two END labels.

llvm-svn: 204629
2014-03-24 17:33:22 +00:00
Rafael Espindola cfee7efde9 Teach llvm-readobj to print human friendly description of reserved sections.
llvm-svn: 204584
2014-03-24 05:00:34 +00:00
Justin Bogner db1225d061 llvm-profdata: Check for bad data in the show command
llvm-svn: 204573
2014-03-23 20:55:53 +00:00
Justin Bogner 423380f9a2 llvm-profdata: Use Format.h instead of handrolling a formatter
llvm-svn: 204571
2014-03-23 20:43:50 +00:00
NAKAMURA Takumi 8971fcae25 llvm-profdata doesn't require LLVMCore.
llvm-svn: 204552
2014-03-23 01:23:26 +00:00
NAKAMURA Takumi 4baaa6a599 llvm-profdata: Avoid F_Text in "merge" for now, since "llvm-profdata show" is confused with CRLF.
FIXME: line_iterator should be tolerant of CR.
llvm-svn: 204540
2014-03-22 05:38:22 +00:00
Justin Bogner b9bd7f85a7 ProfileData: Introduce InstrProfWriter using the naive text format
This isn't a format we'll want to write out in practice, but moving it
to the writer library simplifies llvm-profdata and isolates it from
further changes to the format.

This also allows us to update the tests to not rely on the text output
format.

llvm-svn: 204489
2014-03-21 17:46:22 +00:00
Justin Bogner 9af28ef921 llvm-profdata: Implement show command
The `llvm-profdata show` command summarizes a profdata file's contents
in a human readable format.

llvm-svn: 204485
2014-03-21 17:29:44 +00:00
Justin Bogner f8d791983c ProfileData: Introduce the InstrProfReader interface and a text reader
This introduces the ProfileData library and updates llvm-profdata to
use this library for reading profiles. InstrProfReader is an abstract
base class that will be subclassed for both the raw instrprof data
from compiler-rt and the efficient instrprof format that will be used
for PGO.

llvm-svn: 204482
2014-03-21 17:24:48 +00:00
Greg Fitzgerald 1843227551 llvm-objdump output hex to match binutils' objdump
Patch by Ted Woodward

llvm-svn: 204409
2014-03-20 22:55:15 +00:00
Rafael Espindola 52845cfd16 Remove llvm-mc's disable-cfi option.
It was dead.

llvm-svn: 204404
2014-03-20 21:48:20 +00:00
Justin Bogner f208d32355 llvm-profdata: Remove an empty comment
llvm-svn: 204370
2014-03-20 18:37:27 +00:00
David Majnemer 798e548955 Object: Output .file symbols properly
obj2yaml would emit the NUL bytes padding the auxiliary file symbol
records.  Trimming them looks nicer.

llvm-svn: 204314
2014-03-20 06:29:02 +00:00
David Majnemer ed98b68ed8 Object: Abstract out the determination of function line symbols
No functionality change.

llvm-svn: 204313
2014-03-20 06:28:55 +00:00
David Majnemer ddf28f2b79 Object: Provide a richer means of describing auxiliary symbols
The current state of affairs has auxiliary symbols described as a big
bag of bytes. This is less than satisfying, it detracts from the YAML
file as being human readable.

Instead, allow for symbols to optionally contain their auxiliary data.
This allows us to have a much higher level way of describing things like
weak symbols, function definitions and section definitions.

This depends on D3105.

Differential Revision: http://llvm-reviews.chandlerc.com/D3092

llvm-svn: 204214
2014-03-19 04:47:47 +00:00
David Majnemer f3a2af5371 Object: Move auxiliary symbol definitions from llvm-readobj
Summary: These definitions are useful to other aspects of LLVM, move them out.

Reviewers: rafael, nrieck, ruiu

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3105

llvm-svn: 204213
2014-03-19 04:33:27 +00:00
Justin Bogner 618bcea714 llvm-profdata: Make "merge" into a subcommand.
We'll be adding a few more subcommands in the near future.

llvm-svn: 204211
2014-03-19 02:20:46 +00:00
Justin Bogner 38fff8682b llvm-profdata: Update to use the naive text format with function hash
This also uses line_iterator to simplify the parsing logic.

llvm-svn: 204210
2014-03-19 02:20:42 +00:00
Rui Ueyama f078eff39c Object/COFF: Add function to check if section number is reserved one.
Differential Revision: http://llvm-reviews.chandlerc.com/D3103

llvm-svn: 204199
2014-03-18 23:37:53 +00:00
Jim Grosbach 448334a738 Darwin: Add assembler directives to create version-min load commands.
Allow object files to be tagged with a version-min load command for iOS
or MacOSX.

Teach macho-dump to understand the version-min load commands for
testcases.

rdar://11337778

llvm-svn: 204190
2014-03-18 22:09:05 +00:00
Rui Ueyama 4e39f717ff Use early returns to reduce nesting.
llvm-svn: 204171
2014-03-18 18:58:51 +00:00