llvm-svn: 181096

llvm-svn: 181095

llvm-svn: 181079

Build attribute sections can now be read if they exist via ELFObjectFile, and
the llvm-readobj tool has been extended with an option to dump this information
if requested. Regression tests are also included which exercise these features.

Also update the docs with a fixed ARM ABI link and a new link to the Addenda
which provides the build attributes specification.

llvm-svn: 181009

llvm-svn: 180967

llvm-svn: 180949

For Mach-O there were 2 implementations for parsing object files. A
standalone llvm/Object/MachOObject.h and llvm/Object/MachO.h which
implements the generic interface in llvm/Object/ObjectFile.h.

This patch adds the missing features to MachO.h, moves macho-dump to
use MachO.h and removes ObjectFile.h.

In addition to making sure that check-all is clean, I checked that the
new version produces exactly the same output in all Mach-O files in a
llvm+clang build directory (including executables and shared
libraries).

To test the performance, I ran macho-dump over all the files in a
llvm+clang build directory again, but this time redirecting the output
to /dev/null. Both the old and new versions take about 4.6 seconds
(2.5 user) to finish.

llvm-svn: 180624

getRelocationAddress is for dynamic libraries and executables,
getRelocationOffset for relocatable objects.

Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a
test of ELF's. llvm-readobj -r now prints the same values as readelf -r.

llvm-svn: 180259

llvm-svn: 180247

While here, don't report a dummy symbol for relocations that don't have symbols.
We used to says such relocations were for the first defined symbol, but now we
return end_symbols(). The llvm-readobj output change agrees with otool.

llvm-svn: 180214

LTO was always creating an empty llvm.compiler.used. With this patch we
now first check if there is anything to be added first.

Unfortunately, there is no good way to test libLTO in isolation as it needs gold
or ld64, but there are bots doing LTO builds that found this problem.

llvm-svn: 180202

llvm-svn: 180137

The COFFParser now contains only a COFFYAML::Object and the string table
(which is recomputed, not serialized).

The structs in COFFParser now all begin with a Header field with what is
actually on the COFF object. The other fields are things that are semantically
part of the struct (relocations in a section for exmaple), but are not actually
represented that way in the object file.

llvm-svn: 180134

llvm-svn: 180115

llvm-svn: 180007

llvm-svn: 180006

llvm-svn: 180005

This is part of a future patch to use yamlio that incorrectly ended up in a
cleanup patch.

Thanks to Benjamin Kramer for reporting it.

llvm-svn: 179938

llvm-svn: 179923

llvm-svn: 179922

llvm-svn: 179921

* using namespace llvm.
* whitespace.
* early return.

llvm-svn: 179920

Instead, use MappingNormalization to directly parse COFF::header. Also change
the naming convention of the helper classes to be a bit shorter.

llvm-svn: 179917

Use MappingNormalization to read a COFF::relocation directly.

No functionality change.

llvm-svn: 179891

Thanks to Evgeniy Stepanov for reporting this.

It might be a good idea to add a command iterator abstraction to MachO.h, but
this fixes the bug for now.

llvm-svn: 179848

We are still able to handle mixed endian objects by swapping one struct at a
time.

llvm-svn: 179778

Differential Revision: http://llvm-reviews.chandlerc.com/D598

llvm-svn: 179725

llvm-objdump: Don't print contents of BSS sections: it makes no sense and crashes llvm-objdump on relocated objects with large bss

llvm-svn: 179589

llvm-svn: 179534

This is a rework of the broken parts in r179373 which were subsequently reverted in r179374 due to incompatibility with C++98 compilers.  This version should be ok under C++98.

llvm-svn: 179520

I can fix the testcases here:

http://lab.llvm.org:8011/builders/clang-native-arm-cortex-a9/builds/6952

This reverts commit r179512 due to testcases specifying triples
that they didn't actually mean and causing failures on other platforms.

llvm-svn: 179513

llvm-svn: 179512

This reverts commit r179497 and the accompanying commit as it broke random platforms that aren't osx.

llvm-svn: 179499

and use that as the default triple for the module and target
data layout.

llvm-svn: 179497

We are now able to handle big endian macho files in llvm-readobject. Thanks to
David Fang for providing the object files.

llvm-svn: 179440

You can't copy an OwningPtr, and move semantics aren't available in C++98.

llvm-svn: 179374

llvm-svn: 179373

llvm-svn: 179363

This option expands shown relocations from single line to a dictionary
format:

  Relocation {
    Offset: 0x4
    Type: R_386_32 (1)
    Symbol: sym
    Info: 0x0
  }

llvm-svn: 179359

Original message:

Print more information about relocations.

With this patch llvm-readobj now prints if a relocation is pcrel, its length,
if it is extern and if it is scattered.

It also refactors the code a bit to use bit fields instead of shifts and
masks all over the place.

llvm-svn: 179345