Commit Graph

123 Commits

Author SHA1 Message Date
NAKAMURA Takumi
6ebd77a6c3 llvm/test/Object/archive-toc.test: Use env(1) to satisfy win32 hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186143 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-12 02:34:45 +00:00
Rafael Espindola
1051934164 Add tests for the before and after modifiers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186118 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 21:11:55 +00:00
Rafael Espindola
3a942ac858 Add a test for llvm-ar's m operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186110 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 19:09:04 +00:00
Rafael Espindola
71857ccdb8 Fix a FIXME about the format and add a test.
While at it, use strftime on Unix too and use the thread safe versions
of localtime.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186090 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 15:35:23 +00:00
Rafael Espindola
12fa02841c Merge these tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186084 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 13:44:10 +00:00
Rafael Espindola
aad52dfef9 Use a more unique name to avoid conflicting with directory.ll tests when running
in parallel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186083 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-11 13:31:38 +00:00
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