Commit Graph

167 Commits

Author SHA1 Message Date
Rafael Espindola
fc699872e3 Add a test for llvm-ar's 'd' operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186082 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 13:24:27 +00:00
Rafael Espindola
86779ee177 Add tests for the 'x' operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186081 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 13:13:09 +00:00
Rafael Espindola
b0d599334f Remove this test for now.
It is not reliable to depend on the output of llvm_unreachable. The original
change will have proper tests when llvm-ar moves to lib/Object (soon).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186043 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-10 22:15:29 +00:00
Rafael Espindola
a739759fca Find the symbol table on archives created on OS X.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186041 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-10 22:07:59 +00:00
Rafael Espindola
6911911e61 Move tests from test/Archive to test/Object.
There is no lib/Archive anymore and some archive tests were in test/Archive and
others in test/Object. Since archive is just one of the formats supported by
lib/Object, test/Object is probably the best location.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186038 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-10 21:47:16 +00:00
Rafael Espindola
5159718095 Don't crash in 'llvm -s' when an archive has no symtab.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186029 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-10 20:14:22 +00:00
Rafael Espindola
61de142984 Don't create an archive if, for example, we are asked to print the index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185697 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-05 13:03:07 +00:00
Rafael Espindola
6d88f9b73a Add support for archives with no symbol table or string table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185664 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-04 19:40:23 +00:00
Rafael Espindola
09a7f6016a Add support for gnu archives with a string table and no symtab.
While there, use early returns to reduce nesting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185547 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-03 15:57:14 +00:00
Rafael Espindola
40d40dd44e Make llvm-nm return 1 on error.
This is a small compatibility improvement with gnu nm and makes llvm-nm more
useful as a testing tool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185546 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-03 15:46:03 +00:00
Sean Silva
068463b714 [yaml2obj][ELF] Make symbol table top-level key.
Although in reality the symbol table in ELF resides in a section, the
standard requires that there be no more than one SHT_SYMTAB. To enforce
this constraint, it is cleaner to group all the symbols under a
top-level `Symbols` key on the object file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184627 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-22 01:38:00 +00:00
Sean Silva
6f0ca0c590 This was a nifty test, but remove it.
It wouldn't really test anything that doesn't already have a more
targeted test:
`yaml2obj-elf-section-basic.yaml`:
  Already tests that section content is correctly passed though.
`yaml2obj-elf-symbol-basic.yaml` (this file):
  Tests that the st_value and st_size attributes of `main` are set
  correctly.
Between those two tests, disassembling the file doesn't really add
anything, so just remove mention of disassembling the file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184607 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 23:17:13 +00:00
Sean Silva
8fa38898ff Revert "Put r184469 disassembler test back on X86"
This reverts commit r184602. In an upcoming commit, I will just remove
the disassembler part of the test; it was mostly just a "nifty" thing
marking a milestone but it doesn't test anything that isn't tested
elsewhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184606 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 23:17:10 +00:00
Renato Golin
b37e50b660 Put r184469 disassembler test back on X86
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184602 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 22:42:20 +00:00
Sean Silva
a622a3f450 [yaml2obj][ELF] Don't do disassembly in this test.
This was causing buildbot failures when build without X86 support.

Is there a way to conditionalize the test on the X86 target being
present?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184597 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 21:51:15 +00:00
Sean Silva
326c193e0a [yaml2obj][ELF] Allow expressing undefined symbols.
Previously we unconditionally enforced that section references in
symbols in the YAML had a name that was a section name present in the
object, and linked the references to that section. Now, permit empty
section names (already the default, if the `Section` key is not
provided) to indicate SHN_UNDEF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184513 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 01:11:48 +00:00
Sean Silva
4235ba32f2 [yaml2obj][ELF] Don't explicitly set Binding with STB_*
Instead, just have 3 sub-lists, one for each of
{STB_LOCAL,STB_GLOBAL,STB_WEAK}.

This allows us to be a lot more explicit w.r.t. the symbol ordering in
the object file, because if we allowed explicitly setting the STB_*
`Binding` key for the symbol, then we might have ended up having to
shuffle STB_LOCAL symbols to the front of the list, which is likely to
cause confusion and potential for error.

Also, this new approach is simpler ;)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184506 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-21 00:27:50 +00:00
Sean Silva
e38f640b22 [yaml2obj][ELF] Add support for st_value and st_size.
After this patch, the ELF file produced by
`yaml2obj-elf-symbol-basic.yaml`, when linked and executed on x86_64
(under SysV ABI, obviously; I tested on Linux), produces a working
executable that goes into an infinite loop!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184469 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 20:59:47 +00:00
Sean Silva
6525e92b32 [yaml2obj][ELF] Allow symbols to reference sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184468 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 20:59:41 +00:00
Rafael Espindola
440dfe9644 Make sure ar is creating a new file instead of updating an existing one.
Should fix the bots that are seeing a corrupted file from a previous run.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184424 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-20 13:44:49 +00:00
Sean Silva
6e6259d105 [yaml2obj][ELF] Beef up this test a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184269 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 00:55:32 +00:00
Sean Silva
ea94e114b4 [yaml2obj][ELF] Support ELFOSABI_* enum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 00:55:28 +00:00
Sean Silva
5ba1225fb0 [yaml2obj][ELF] Support st_info through Binding and Type YAML keys.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184263 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-19 00:11:59 +00:00
Sean Silva
ca0170ffa1 [yaml2obj][ELF] Ensure STN_UNDEF entry is present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184258 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-18 23:19:17 +00:00
Sean Silva
afcf60fe15 [yaml2obj][ELF] Rudimentary symbol table support.
Currently, we only output the name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184255 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-18 23:14:03 +00:00
Alexey Samsonov
9c22f87b13 Basic support for parsing Mach-O universal binaries in LLVMObject library
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184191 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-18 15:03:28 +00:00
Sean Silva
fe57e347a5 [yaml2obj] Add support for sh_link via Link key.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184022 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-15 00:25:26 +00:00
Sean Silva
97d37e8181 [yaml2obj] Add support for sh_addralign via AddressAlign key.
For consistency, change the address in the test case from 0xDEADBEEF to
0xCAFEBABE since 0xCAFEBABE that actually has a 2-byte alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183962 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-14 00:38:02 +00:00
Sean Silva
2a7e79a30f [yaml2obj] Add support for specifying raw section content.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183955 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-13 22:20:01 +00:00
Sean Silva
45b812d1a7 [yaml2obj] Add sh_addr via Address key.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183954 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-13 22:19:54 +00:00
Sean Silva
274264ce2b [yaml2obj] Initial ELF section support.
The current functionality is extremely basic and a bit rough around the
edges, but it will flesh out in future commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183953 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-13 22:19:48 +00:00
Sean Silva
0d3b9ac634 [yaml2obj] Remove fragile test case.
This test case was a "sanity check"/"breathing" test case at first, but
is really fragile, which impairs changes to yaml2obj.

`test/Object/yaml2obj-elf-bits-endian.test` is much more robust and
serves as an adequate sanity check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183811 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-12 00:01:26 +00:00
Sean Silva
457c8ebfd0 Fix dubious type name similar to member name.
Should bring bots back to life.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183715 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-11 00:13:52 +00:00
Sean Silva
5918b7a03d [yaml2obj] Initial ELF support.
Currently, only emitting the ELF header is supported (no sections or
segments).

The ELFYAML code organization is broadly similar to the COFFYAML code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183711 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-10 23:44:15 +00:00
Kevin Enderby
285bd8e6f9 Move the test for the data in code into the ARM directory as it is an ARM
binary that is used for the test.  Caught by Jim Grosbach!

rdar://11791371


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183442 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-06 20:28:28 +00:00
Kevin Enderby
54154f3bf1 Teach llvm-objdump with the -macho parser how to use the data in code table
from the LC_DATA_IN_CODE load command.  And when disassembling print
the data in code formatted for the kind of data it and not disassemble those
bytes.

I added the format specific functionality to the derived class MachOObjectFile
since these tables only appears in Mach-O object files. This is my first
attempt to modify the libObject stuff so if folks have better suggestions
how to fit this in or suggestions on the implementation please let me know.

rdar://11791371


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183424 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-06 17:20:50 +00:00
Rafael Espindola
e3a0e7f29d Print symbol names in relocations when dumping COFF as YAML.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183403 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-06 13:06:17 +00:00
Rafael Espindola
23a22cdedd Don't print default values for NumberOfAuxSymbols and AuxiliaryData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183293 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-05 03:20:13 +00:00
Rafael Espindola
6c1202c459 Handle relocations that don't point to symbols.
In ELF (as in MachO), not all relocations point to symbols. Represent this
properly by using a symbol_iterator instead of a SymbolRef. Update llvm-readobj
ELF's dumper to handle relocatios without symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183284 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-05 01:33:53 +00:00
Rui Ueyama
891c0cd3c1 [Object/COFF] Fix Windows .lib name handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183091 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-03 00:27:03 +00:00
Rafael Espindola
7486d92a6c Change how we iterate over relocations on ELF.
For COFF and MachO, sections semantically have relocations that apply to them.
That is not the case on ELF.

In relocatable objects (.o), a section with relocations in ELF has offsets to
another section where the relocations should be applied.

In dynamic objects and executables, relocations don't have an offset, they have
a virtual address. The section sh_info may or may not point to another section,
but that is not actually used for resolving the relocations.

This patch exposes that in the ObjectFile API. It has the following advantages:

* Most (all?) clients can handle this more efficiently. They will normally walk
all relocations, so doing an effort to iterate in a particular order doesn't
save time.

* llvm-readobj now prints relocations in the same way the native readelf does.

* probably most important, relocations that don't point to any section are now
visible. This is the case of relocations in the rela.dyn section. See the
updated relocation-executable.test for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182908 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-30 03:05:14 +00:00
Ahmed Bougacha
2c94d0faa0 Add MCSymbolizer for symbolic/annotated disassembly.
This is a basic first step towards symbolization of disassembled
instructions. This used to be done using externally provided (C API)
callbacks. This patch introduces:
- the MCSymbolizer class, that mimics the same functions that were used
  in the X86 and ARM disassemblers to symbolize immediate operands and
  to annotate loads based off PC (for things like c string literals).
- the MCExternalSymbolizer class, which implements the old C API.
- the MCRelocationInfo class, which provides a way for targets to
  translate relocations (either object::RelocationRef, or disassembler
  C API VariantKinds) to MCExprs.
- the MCObjectSymbolizer class, which does symbolization using what it
  finds in an object::ObjectFile. This makes simple symbolization (with
  no fancy relocation stuff) work for all object formats!
- x86-64 Mach-O and ELF MCRelocationInfos.
- A basic ARM Mach-O MCRelocationInfo, that provides just enough to
  support the C API VariantKinds.

Most of what works in otool (the only user of the old symbolization API
that I know of) for x86-64 symbolic disassembly (-tvV) works, namely:
- symbol references: call _foo; jmp 15 <_foo+50>
- relocations:       call _foo-_bar; call _foo-4
- __cf?string:       leaq 193(%rip), %rax ## literal pool for "hello"
Stub support is the main missing part (because libObject doesn't know,
among other things, about mach-o indirect symbols).

As for the MCSymbolizer API, instead of relying on the disassemblers
to call the tryAdding* methods, maybe this could be done automagically
using InstrInfo? For instance, even though PC-relative LEAs are used
to get the address of string literals in a typical Mach-O file, a MOV
would be used in an ELF file. And right now, the explicit symbolization
only recognizes PC-relative LEAs. InstrInfo should have already have
most of what is needed to know what to symbolize, so this can
definitely be improved.

I'd also like to remove object::RelocationRef::getValueString (it seems
only used by relocation printing in objdump), as simply printing the
created MCExpr is definitely enough (and cleaner than string concats).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182625 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-24 00:39:57 +00:00
Rafael Espindola
e67c9c341f Use std::list so that we have a stable iterator.
I will try to avoid creating these std::strings, but for now this gets
the tests passing with libc++.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182405 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 18:53:50 +00:00
Bob Wilson
ff9a6b44e0 Temporarily disable this test because it is failing when using libc++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182212 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 14:59:08 +00:00
Rafael Espindola
2bbe378147 Convert obj2yaml to use yamlio.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182169 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-17 22:58:42 +00:00
Ahmed Bougacha
ebb9f17240 Object: Fix Mach-O relocation printing.
There were two problems that made llvm-objdump -r crash:
- for non-scattered relocations, the symbol/section index is actually in the
  (aptly named) symbolnum field.
- sections are 1-indexed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181843 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-14 22:41:29 +00:00
Rafael Espindola
167957fa09 Change getRelocationAdditionalInfo to be ELF only.
It was only implemented for ELF where it collected the Addend, so this
patch also renames it to getRelocationAddend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181502 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-09 03:39:05 +00:00
Rafael Espindola
7098ae2fee Split Alignment out of the Section Characteristics.
The alignment is just a byte in the middle of Characteristics, not an
independent flag. Making it an independent field in the yaml
representation makes it more yamlio friendly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181243 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06 20:11:21 +00:00
Amara Emerson
1aef163a68 Revert r181009.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181079 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03 23:57:17 +00:00
Amara Emerson
3170ad7dd4 Delete test instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181066 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03 22:39:03 +00:00
Amara Emerson
224e114e71 Temporarily disable failing test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181062 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03 22:27:48 +00:00
Amara Emerson
5d446e61d9 Add support for reading ARM ELF build attributes.
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181009 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03 11:36:35 +00:00
Rafael Espindola
140536b936 Add missing ':'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180616 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-26 17:54:46 +00:00
Rafael Espindola
956ca7265c Clarify getRelocationAddress x getRelocationOffset a bit.
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180259 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-25 12:28:45 +00:00
Rafael Espindola
a0840c4b82 Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180137 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-23 19:39:34 +00:00
Rafael Espindola
120cf5743b Write relocations in yaml2obj.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180115 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-23 15:53:02 +00:00
Eric Christopher
4f40fa324c Add .ll as a valid test suffix for Object, this allows .ll -> object
and then dumping as tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180010 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 10:45:06 +00:00
Rafael Espindola
baecbb82d8 Only run the tests in test/Object/ARM if we have ARM support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179850 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19 12:47:53 +00:00
Rafael Espindola
db5f927020 Don't read one command past the end.
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179848 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19 11:36:47 +00:00
Alexey Samsonov
0eaa6f675c llvm-objdump: Don't print contents of BSS sections: it makes no sense and crashes llvm-objdump on relocated objects with large bss
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179589 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16 10:53:11 +00:00
Rafael Espindola
aa2163668d Add a test for obj2yaml in preparation for refactoring it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178829 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-05 02:02:05 +00:00
Rafael Espindola
5152e4fb06 Add back parsing of header charactestics.
It had been dropped during the switch to yaml::IO. Also add a test going
from yaml2obj to llvm-readobj. It can be extended as we add more
fields/formats to yaml2obj.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178786 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-04 20:30:52 +00:00
Rafael Espindola
d787a41b11 Implement the "mips endian" for r_info.
Normally r_info is just a 32 of 64 bit number matching the endian of the rest
of the file. Unfortunately, mips 64 bit little endian is special: The top 32
bits are a little endian number and the following 32 are a big endian one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178694 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 21:02:51 +00:00
Eric Christopher
76e70f340c Implements low-level object file format specific output for COFF and
ELF with support for:

- File headers
- Section headers + data
- Relocations
- Symbols
- Unwind data (only COFF/Win64)

The output format follows a few rules:
- Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses.
- Hex numbers are output in uppercase, prefixed with "0x".
- Flags are sorted alphabetically.
- Lists and groups are always delimited.

Example output:
---------- snip ----------
Sections [
  Section {
    Index: 1
    Name: .text (5)
    Type: SHT_PROGBITS (0x1)
    Flags [ (0x6)
      SHF_ALLOC (0x2)
      SHF_EXECINSTR (0x4)
    ]
    Address: 0x0
    Offset: 0x40
    Size: 33
    Link: 0
    Info: 0
    AddressAlignment: 16
    EntrySize: 0
    Relocations [
      0x6 R_386_32 .rodata.str1.1 0x0
      0xB R_386_PC32 puts 0x0
      0x12 R_386_32 .rodata.str1.1 0x0
      0x17 R_386_PC32 puts 0x0
    ]
    SectionData (
      0000: 83EC04C7 04240000 0000E8FC FFFFFFC7  |.....$..........|
      0010: 04240600 0000E8FC FFFFFF31 C083C404  |.$.........1....|
      0020: C3                                   |.|
    )
  }
]
---------- snip ----------

Relocations and symbols can be output standalone or together with the section header as displayed in the example.
This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated.

Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178679 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 18:31:38 +00:00
Eric Christopher
19d7322170 Implement sectionContainsSymbol for ELF.
Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178677 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 18:31:19 +00:00
Eric Christopher
eac49f668a When dumping clear the arm/thumb flag for now.
Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178676 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 18:31:12 +00:00
Shankar Easwaran
bd1737c846 [tools][llvm-readobj] print the name of the section when iterating the symbol table / dynamic symbol table
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177873 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25 16:06:51 +00:00
Michael J. Spencer
d326d05fb9 [llvm-readobj] Add ELF .dynamic table dumping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175592 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20 02:37:12 +00:00
Michael J. Spencer
def0c1f756 [Object][ELF] Fix crash on no dynamic section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174639 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07 18:26:45 +00:00
Michael J. Spencer
27b2b1b4e5 [llvm-objdump] Emit addresses with the correct number of leading 0's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172130 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10 22:40:50 +00:00
Michael J. Spencer
95abfbe8e9 [Object][ELF] Fix incorrect size of members for the 64 version of Elf_Phdr_Impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171650 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-06 03:57:11 +00:00
Michael J. Spencer
b2c064c695 [objdump] Add --private-headers, -p.
This currently prints the ELF program headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171649 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-06 03:56:49 +00:00
Michael J. Spencer
4d9c5397b4 [Object][ELF] Add a maximum alignment. This is used by createELFObjectFile to create a properly aligned reader.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171520 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04 20:36:28 +00:00
Michael J. Spencer
3fea4ef0b4 [Object] Temporarily disable these tests.
They are failing because archives create unaligned ELF files. The recent
Endian change added a __builtin_unreachable() when this happens. I will be
committing a fix for this soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171438 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-03 01:24:32 +00:00
Rafael Espindola
5b712efd9a Fix bits check in ELFObjectFile::isSectionZeroInit().
Fixes PR14723.

Patch by Sami Liedes!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171309 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 18:20:51 +00:00
Rafael Espindola
fc73847d8f Dump sections. Extracted from a patch by Sami Liedes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171304 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 16:29:44 +00:00
Rafael Espindola
148ee4f224 Print a header above the symbols. Extracted from a patch by Sami Liedes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171302 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 16:05:21 +00:00
Tim Northover
1c2b2f9c56 Teach MachO which sections contain code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-17 17:59:32 +00:00
Shankar Easwaran
a8028e5884 numerically sort the symbols, so that the testcase result is uniform
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167872 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13 21:01:11 +00:00
Daniel Dunbar
ed074e9a1b llvm-nm: Make sort more stable when symbol names are equal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167866 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13 19:39:55 +00:00
Shankar Easwaran
206252cc9f Adding changes to support GNU style archive library reading
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167853 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13 18:38:42 +00:00
Alexey Samsonov
01fa41a106 Fix SymbolRef::getAddress implementation for ELF. The 'value' field in symbol table entry should be treated differently for relocatable and relocated files. This patch fixes symbol addresses printed by llvm-nm for executables and shared objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164365 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-21 07:08:08 +00:00
Nick Lewycky
0c09e76e52 Add missing file for test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163272 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 23:52:20 +00:00
Nick Lewycky
033d182589 Teach libObject about some more ELF relocations. llvm-objdump -r now knows
every relocation in C++ hello world built with debug info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163271 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 23:48:54 +00:00
NAKAMURA Takumi
68990df1f9 Create llvm/test/Object/Mips/lit.local.cfg to check Mips in targets_to_build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162819 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29 01:37:57 +00:00
Jack Carter
f05da8ebd6 Moved input for objdump test from Mips to Inputs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29 00:10:48 +00:00
Jack Carter
fd6d165155 Some of the instructions in the Mips instruction set are revision
delimited. llvm-mc -disassemble access these through the -mattr
option.

llvm-objdump -disassemble had no such way to set the attribute so
some instructions were just not recognized for disassembly.

This patch accepts llvm-mc mechanism for specifying the attributes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162781 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28 19:24:49 +00:00
Matt Beaumont-Gay
923123c370 Move test yaml files under Inputs until they are converted to be the actual
test files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02 21:52:49 +00:00
Michael J. Spencer
a915f247f7 Add yaml2obj. A utility to convert YAML to binaries.
yaml2obj takes a textual description of an object file in YAML format
and outputs the binary equivalent. This greatly simplifies writing
tests that take binary object files as input.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161205 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02 19:16:56 +00:00
Marshall Clow
50b4c52633 Add relocation types for Hexagon processor; patch by Sidney Manning <sidneym@codeaurora.org>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159081 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-23 14:46:18 +00:00
Eli Bendersky
cc85160672 Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu
* Removed test/lib/llvm.exp - it is no longer needed 
* Deleted the dg.exp reading code from test/lit.cfg. There are no dg.exp files
  left in the test suite so this code is no longer required. test/lit.cfg is
  now much shorter and clearer 
* Removed a lot of duplicate code in lit.local.cfg files that need access to
  the root configuration, by adding a "root" attribute to the TestingConfig
  object. This attribute is dynamically computed to provide the same
  information as was previously provided by the custom getRoot functions. 
* Documented the config.root attribute in docs/CommandGuide/lit.pod





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-25 09:02:19 +00:00
David Meyer
2d70e263c2 Support reading GNU symbol versions in ELFObjectFile
* Add enums and structures for GNU version information.
* Implement extraction of that information on a per-symbol basis (ELFObjectFile::getSymbolVersion).
* Implement a generic interface, GetELFSymbolVersion(), for getting the symbol version from the ObjectFile (hides the templating).
* Have llvm-readobj print out the version, when available.
* Add a test for the new feature: readobj-elf-versioning.test



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152436 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-09 20:59:52 +00:00
David Meyer
97f7787bfb [Object]
Add ObjectFile::getLoadName() for retrieving the soname/installname of a shared object.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151845 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01 22:19:54 +00:00
David Meyer
5c2b4ea73c [Object]
* Add begin_dynamic_table() / end_dynamic_table() private interface to ELFObjectFile.
* Add begin_libraries_needed() / end_libraries_needed() interface to ObjectFile, for grabbing the list of needed libraries for a shared object or dynamic executable.
* Implement this new interface completely for ELF, leave stubs for COFF and MachO.
* Add 'llvm-readobj' tool for dumping ObjectFile information.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151785 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01 01:36:50 +00:00
Michael J. Spencer
dfa1896b6b [Object] Add {begin,end}_dynamic_symbols stubs and implementation for ELF.
Add -D option to llvm-nm to dump dynamic symbols.

Patch by David Meyer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151600 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28 00:40:37 +00:00
Eli Bendersky
0f0c411079 Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16 06:28:33 +00:00
Danil Malyshev
b0436a7305 Fixed ObjectFile functions:
- getSymbolOffset() renamed as getSymbolFileOffset()
- getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile.
- added getRelocationOffset()
- fixed MachOObjectFile::getSymbolSize()
- fixed MachOObjectFile::getSymbolSection()
- fixed MachOObjectFile::getSymbolOffset() for symbols without section data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145408 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-29 17:40:10 +00:00
Eli Friedman
dc9414d62f Move x86-specific tests into X86 folder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01 03:21:48 +00:00
Matt Beaumont-Gay
11f9987876 Change the actual tests to match the input directory rename (duh)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31 23:56:52 +00:00
Matt Beaumont-Gay
be7a772a56 Rename "TestObjectFiles" to "Inputs" (like the pattern for Clang tests)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31 23:46:38 +00:00