Commit Graph

92 Commits

Author SHA1 Message Date
Saleem Abdulrasool 9fd41316ad llvm-readobj: add a test case for ARM_MOV32(T) base relocation
Add a trivial binary (int main() { return 0; }) built for Windows on ARM to
ensure that we can correctly identify ARM_MOV32(T) base relocations.  Addresses
post-commit review comments.

llvm-svn: 227673
2015-01-31 04:46:50 +00:00
Charlie Turner 8b2caa458f Emit the build attribute Tag_conformance.
Claim conformance to version 2.09 of the ARM ABI.

This build attribute must be emitted first amongst the build attributes when
written to an object file. This is to simplify conformance detection by
consumers.

Change-Id: If9eddcfc416bc9ad6e5cc8cdcb05d0031af7657e
llvm-svn: 225166
2015-01-05 13:12:17 +00:00
Saleem Abdulrasool ddd926441e llvm-readobj: add support to dump COFF export tables
This enhances llvm-readobj to print out the COFF export table, similar to the
-coff-import option.  This is useful for testing in lld.

llvm-svn: 225120
2015-01-03 21:35:09 +00:00
Charlie Turner ab9524ecdb Test all <build attribute, value> pairs.
Add more tests to make sure the encoding/decoding of build attributes works
correctly for all permissible values of build attributes. For cases where there
are an infinite number of such values, a representative subset has been settled
for.

Change-Id: I2643c9624c211b2d56405306e16eec2d487bc5d6
llvm-svn: 222917
2014-11-28 11:14:47 +00:00
Charlie Turner 8d43369163 Stop uppercasing build attribute data.
The string data for string-valued build attributes were being unconditionally
uppercased. There is no mention in the ARM ABI addenda about case conventions,
so it's technically implementation defined as to whether the data are
capitialised in some way or not. However, there are good reasons not to
captialise the data.

  * It's less work.
  * Some vendors may legitimately have case-sensitive checks for these
    attributes which would fail on LLVM generated object files.
  * There could be locale issues with uppercasing.

The original reasons for uppercasing appear to have stemmed from an
old codesourcery toolchain behaviour, see

http://comments.gmane.org/gmane.comp.compilers.llvm.cvs/87133

This patch makes the object file emitted no longer captialise string
data, it encodes as seen in the assembly source.

Change-Id: Ibe20dd6e60d2773d57ff72a78470839033aa5538
llvm-svn: 222882
2014-11-27 12:13:56 +00:00
Will Newton 40f08faa70 Update AArch64 ELF relocations to ABI 1.0
This mostly entails adding relocations, however there are a couple of
changes to existing relocations:

1. R_AARCH64_NONE is defined to be zero rather than 256

R_AARCH64_NONE has been defined to be zero for a long time elsewhere
e.g. binutils and glibc since the submission of the AArch64 port in
2012 so this is required for compatibility.

2. R_AARCH64_TLSDESC_ADR_PAGE renamed to R_AARCH64_TLSDESC_ADR_PAGE21

I don't think there is any way for relocation names to leak out of LLVM
so this should not break anything.

Tested with check-all with no regressions.

llvm-svn: 222821
2014-11-26 10:49:18 +00:00
Will Newton 7ad0ddc7e6 Update ARM ELF relocations to ABI 2.09
Add R_ARM_IRELATIVE.

llvm-svn: 222817
2014-11-26 10:36:03 +00:00
David Majnemer 8cf0dbb015 Forgot to add a file for r222734
llvm-svn: 222736
2014-11-25 07:45:56 +00:00
David Majnemer 0349a019ca COFF: Add another test for r222124
llvm-svn: 222734
2014-11-25 07:42:36 +00:00
Jyoti Allur 5b9f35220e [ELF] Prevent ARM ELF object writer from generating deprecated relocation code R_ARM_PLT32
llvm-svn: 222414
2014-11-20 05:58:11 +00:00
David Majnemer ccce9ae4c7 Add a test for r221870
bad-relocs.obj.coff-i386 has a relocation whose symbol index is outside
the symbol table.

llvm-svn: 222413
2014-11-20 05:32:10 +00:00
Rui Ueyama 970dda295e llvm-readobj: fix off-by-one error in COFFDumper
It printed out base relocation table header as table entry.
This patch also makes llvm-readobj to not skip ABSOLUTE entries
becuase it was confusing.

llvm-svn: 222299
2014-11-19 02:07:10 +00:00
Rui Ueyama 74e85130a0 llvm-readobj: teach it how to dump COFF base relocation table
llvm-svn: 222289
2014-11-19 00:18:07 +00:00
David Majnemer 774aadf144 llvm-readobj: Don't print the Characteristics field as the Subsystem
We claimed that we were printing the Subystem field when we were
actually printing the Characteristics field.

llvm-svn: 222216
2014-11-18 02:45:28 +00:00
David Majnemer 236b0ca790 Object, COFF: Tighten the object file parser
We were a little lax in a few areas:
- We pretended that import libraries were like any old COFF file, they
  are not.  In fact, they aren't really COFF files at all, we should
  probably grow some specialized functionality to handle them smarter.
- Our symbol iterators were more than happy to attempt to go past the
  end of the symbol table if you had a symbol with a bad list of
  auxiliary symbols.

llvm-svn: 222124
2014-11-17 11:17:17 +00:00
Frederic Riss d431932d38 Implement MachODumper::printFileHeaders
Patch by Chilledheart.

Differential Revision: http://reviews.llvm.org/D6163

llvm-svn: 222115
2014-11-17 01:34:15 +00:00
Rui Ueyama ffa4cebe91 llvm-readobj: Print out address table when dumping COFF delay-import table
llvm-svn: 221855
2014-11-13 03:22:54 +00:00
Timur Iskhodzhanov a11b32b7e5 [COFF] Make it clearer that the symbols subsection holds function display name rather than just name
llvm-svn: 221812
2014-11-12 20:10:09 +00:00
David Majnemer 5026722287 llvm-readobj: Add support for dumping the DOS header in PE files
llvm-svn: 221333
2014-11-05 06:24:35 +00:00
Timur Iskhodzhanov 56af52f852 PR21189: Teach llvm-readobj to dump bits of COFF symbol subsections required to debug using VS2012+
Reviewed at http://reviews.llvm.org/D5755
Thanks to Andrey Guskov for his help investigating this!

llvm-svn: 220526
2014-10-23 22:25:31 +00:00
Timur Iskhodzhanov 1ee5ac87e2 Add VS2012-generated test inputs for test/tools/llvm-readobj/codeview-linetables.test
llvm-svn: 219621
2014-10-13 17:03:13 +00:00
Rui Ueyama b67154d01b llvm-readobj: add test for r219228
llvm-svn: 219274
2014-10-08 02:06:11 +00:00
Timur Iskhodzhanov 116033303b Fix dumping codeview line tables when there are multiple debug sections
Codeview line tables for functions in different sections refer to a common
STRING_TABLE_SUBSECTION for filenames.
This happens when building with -Gy or with inline functions with MSVC.

Original patch by Jeff Muizelaar!

llvm-svn: 219125
2014-10-06 16:59:44 +00:00
Rui Ueyama 1af0865871 llvm-readobj: print out the fields of the COFF delay-import table
llvm-svn: 218996
2014-10-03 18:07:18 +00:00
Rui Ueyama 15d993591c llvm-readobj: print COFF delay-load import table
This patch adds another iterator to access the delay-load import table
and use it from llvm-readobj.

http://reviews.llvm.org/D5594

llvm-svn: 218933
2014-10-03 00:41:58 +00:00
Rui Ueyama a3f58694b5 llvm-readobj: add a test for COFF import-by-ordinal symbols
llvm-svn: 218924
2014-10-02 22:40:55 +00:00
Rui Ueyama 861021f986 llvm-readobj: print COFF imported symbols
This patch defines a new iterator for the imported symbols.
Make a change to COFFDumper to use that iterator to print
out imported symbols and its ordinals.

llvm-svn: 218915
2014-10-02 22:05:29 +00:00
Rui Ueyama 1e152d5eec This patch adds a new flag "-coff-imports" to llvm-readobj.
When the flag is given, the command prints out the COFF import table.

Currently only the import table directory will be printed.
I'm going to make another patch to print out the imported symbols.

The implementation of import directory entry iterator in
COFFObjectFile.cpp was buggy. This patch fixes that too.

http://reviews.llvm.org/D5569

llvm-svn: 218891
2014-10-02 17:02:18 +00:00
Timur Iskhodzhanov d171153f81 Rebuild the inputs for the codeview-linetables.test with VS2013
Also provide reproducible instructions

llvm-svn: 218303
2014-09-23 13:49:51 +00:00
David Majnemer f4dc456eef llvm-readobj: pretty-print special COFF section names
Print IMAGE_SYM_DEBUG and the like instead of (-2).

llvm-svn: 218172
2014-09-20 00:25:06 +00:00
David Majnemer 2cbc13878f yaml2obj: Support bigobj
Teach yaml2obj how to make a bigobj COFF file.  Like the rest of LLVM,
we automatically decide whether or not to use regular COFF or bigobj
COFF on the fly depending on how many sections the resulting object
would have.

This ends the task of adding bigobj support to LLVM.

N.B. This was tested by forcing yaml2obj to be used in bigobj mode
regardless of the number of sections.  While a dedicated test was
written, the smallest I could make it was 36 MB (!) of yaml and it still
took a significant amount of time to execute on a powerful machine.

llvm-svn: 217858
2014-09-16 03:52:46 +00:00
David Majnemer 44f51e5113 Object: Add support for bigobj
This adds support for reading the "bigobj" variant of COFF produced by
cl's /bigobj and mingw's -mbig-obj.

The most significant difference that bigobj brings is more than 2**16
sections to COFF.

bigobj brings a few interesting differences with it:
- It doesn't have a Characteristics field in the file header.
- It doesn't have a SizeOfOptionalHeader field in the file header (it's
  only used in executable files).
- Auxiliary symbol records have the same width as a symbol table entry.
  Since symbol table entries are bigger, so are auxiliary symbol
  records.

Write support will come soon.

Differential Revision: http://reviews.llvm.org/D5259

llvm-svn: 217496
2014-09-10 12:51:52 +00:00
Tim Northover c532bbd647 AArch64: add support for dynamic-loader relocations
LLD needs them, and it's good to be able to print them properly when
our object dumpers encounter them.

Patch by Daniel Stewart.

llvm-svn: 215352
2014-08-11 10:10:27 +00:00
Tim Northover bb9c88fa73 llvm-readobj: zero out timestamp in COFF auto-generated test files.
The timestamp meant these files changed with each invocation of
relocs.py, confusing matters when we add relocations and need to
update the tests.

llvm-svn: 215350
2014-08-11 09:53:07 +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
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
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
Simon Atanasyan 24199883e5 [ELF][Mips] Fix recognition of MIPS 64-bit arch in the ELFObjectFile:getArch() method.
llvm-svn: 211891
2014-06-27 11:36:45 +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
Alp Toker d3d017cf00 Reduce verbiage of lit.local.cfg files
We can just split targets_to_build in one place and make it immutable.

llvm-svn: 210496
2014-06-09 22:42:55 +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
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
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
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
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
Nico Rieck 8678acd5ed llvm-readobj: Print referred symbol name for CLR token definition
llvm-svn: 204024
2014-03-17 01:46:52 +00:00
Nico Rieck effcd4ba7a llvm-readobj: Add test for COFF auxiliary symbols as used by C++/CLI
llvm-svn: 204023
2014-03-17 01:46:28 +00:00
Saleem Abdulrasool 9b7c0af292 Support: add support to identify WinCOFF/ARM objects
Add the Windows COFF ARM object file magic.  This enables the LLVM tools to
interact with COFF object files for Windows on ARM.

llvm-svn: 203761
2014-03-13 07:02:35 +00:00
Rafael Espindola 1194e69fe6 Fix the printing of n_type.
Despite the name, n_type contains the type of the symbol, but also if it is
extern or private extern.

llvm-svn: 203154
2014-03-06 20:13:41 +00:00
Nico Rieck 773a57958c Relax COFF string table check
COFF object files with 0 as string table size are currently rejected. This
prevents us from reading object files written by tools like cvtres that
violate the PECOFF spec and write 0 instead of 4 for the size of an empty
string table.

llvm-svn: 202292
2014-02-26 19:51:44 +00:00