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34 Commits

Author SHA1 Message Date
Michael J. Spencer
0aef1b9f18 [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.

llvm-svn: 151600
 2012-02-28 00:40:37 +00:00
Eli Bendersky
ff2a79674c Expose the ELFObjectFile class directly in the Object/ELF.h header, similarly 
to what's done for MachO and COFF. This allows advanced uses of the class to
be implemented outside the Object library. In particular, the DyldELFObject
subclass is now moved into its logical home - ExecutionEngine/RuntimeDyld.

This patch was reviewed by Michael Spencer.

llvm-svn: 150327
 2012-02-12 06:12:10 +00:00
Eli Bendersky
d2042f3698 Basic runtime dynamic loading capabilities added to ELFObjectFile, implemented 
in a subclass named DyldELFObject. This class supports rebasing the object file
it represents by re-mapping section addresses to the actual memory addresses
the object was placed in. This is required for MC-JIT implementation on ELF with
debugging support.

Patch reviewed on llvm-commits.

Developed together with Ashok Thirumurthi and Andrew Kaylor.

llvm-svn: 148653
 2012-01-22 09:01:03 +00:00
David Blaikie
576aba04f1 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch 
llvm-svn: 146960
 2011-12-20 02:50:00 +00:00
Danil Malyshev
5ce4e1a9d3 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.

llvm-svn: 145408
 2011-11-29 17:40:10 +00:00
Chandler Carruth
e5e455c97f Revert r145180 as it is causing test failures on all the bots. 
Original commit message:
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.

llvm-svn: 145182
 2011-11-27 10:37:47 +00:00
Danil Malyshev
3bbe062799 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.

llvm-svn: 145180
 2011-11-27 10:12:52 +00:00
Michael J. Spencer
2619be7610 object: Add operator < for SymbolRef and SectionRef. 
llvm-svn: 143563
 2011-11-02 19:33:41 +00:00
Owen Anderson
7a9bb4d47f Expand relocation type field to 64 bits. MachO scattered relocations require 33 bits of type info. 
llvm-svn: 143032
 2011-10-26 17:08:49 +00:00
Owen Anderson
69d98376b9 Add support for the notion of "hidden" relocations. On MachO, these are relocation entries that are used as additional information for other, real relocations, rather than being relocations themselves. 
I'm not familiar enough with ELF or COFF to know if they should have any relocations marked hidden.

llvm-svn: 142961
 2011-10-25 20:35:53 +00:00
Michael J. Spencer
adc33b805a Object: Add some types to SymbolRef::Type. 
Some of these can be true at the same time and there are a lot to add,
so this should be turned into a bitfield. Some of the other accessors
should probably be folded into this.

llvm-svn: 142318
 2011-10-17 23:55:06 +00:00
Michael J. Spencer
25b0873d7f Object: Add isSymbolAbsolute and getSymbolSection. 
llvm-svn: 142317
 2011-10-17 23:54:46 +00:00
Michael J. Spencer
3f458c5498 Object: Add isSymbolWeak. 
llvm-svn: 142316
 2011-10-17 23:54:22 +00:00
Michael J. Spencer
b1efc242ea 80-col. 
llvm-svn: 142309
 2011-10-17 23:37:43 +00:00
Michael J. Spencer
c787cb4441 Object: Fix redundant name. 
llvm-svn: 142238
 2011-10-17 20:19:29 +00:00
Nick Lewycky
c8160ebc71 Add support for .symtab_shnidx. Unfortunately, doing this required breaking a 
layer of abstraction around SymbolRef where you can read its private
SymbolPimpl member.

llvm-svn: 141636
 2011-10-11 02:57:48 +00:00
Michael J. Spencer
ebd507f958 Object: add getSectionAlignment. 
llvm-svn: 141581
 2011-10-10 21:55:43 +00:00
Michael J. Spencer
34d76cf95b Change relocation API to be per section. This time without breaking GCC. 
llvm-svn: 141385
 2011-10-07 19:25:32 +00:00
Bill Wendling
ecbddb2b9e Revert 141376 and 141377 due to breaking the build. 
--- Reverse-merging r141377 into '.':
U    tools/llvm-objdump/MachODump.cpp
--- Reverse-merging r141376 into '.':
U    include/llvm/Object/COFF.h
U    include/llvm/Object/ObjectFile.h
U    include/llvm-c/Object.h
U    tools/llvm-objdump/llvm-objdump.cpp
U    lib/Object/MachOObjectFile.cpp
U    lib/Object/COFFObjectFile.cpp
U    lib/Object/Object.cpp
U    lib/Object/ELFObjectFile.cpp

llvm-svn: 141379
 2011-10-07 18:25:37 +00:00
Michael J. Spencer
14925a859b Change relocation API to be per section. 
llvm-svn: 141376
 2011-10-07 18:15:25 +00:00
Michael J. Spencer
5948c3822e Object: Add isSection{Data,BSS}. 
llvm-svn: 140721
 2011-09-28 20:57:30 +00:00
Benjamin Kramer
52607b3842 Object: make the following changes into SymbolRef 
- Add enum SymbolType and function getSymbolType()
- Add function isGlobal() - it's returns true for symbols that can be used in another objects, such as library functions.
- Rename function getAddress() to getOffset() and add new function getAddress(), because currently getAddress() returns section offset of symbol first byte. new getAddress() return symbol address.
- Change usage SymbolRef::getAddress() to getOffset() in tools/llvm-nm and tools/llvm-objdump.

Patch by Danil Malyshev!

llvm-svn: 139683
 2011-09-14 01:22:52 +00:00
Benjamin Kramer
3c40c2100b Add support for relocations to ObjectFile. 
Patch by Danil Malyshev!

llvm-svn: 139314
 2011-09-08 20:52:17 +00:00
Benjamin Kramer
5836701780 Teach llvm-objdump to disassemble sections symbol by symbol. 
llvm-svn: 135289
 2011-07-15 18:39:24 +00:00
Benjamin Kramer
5936e08079 ObjectFile: Add a method to check whether a section contains a symbol. 
- No ELF or COFF implementation yet, I don't have a way to test that.
  Should be straightforward to add though.

llvm-svn: 135288
 2011-07-15 18:39:21 +00:00
Michael J. Spencer
4b7808fe50 Fix 80-col. 
llvm-svn: 134409
 2011-07-05 14:49:08 +00:00
Michael J. Spencer
83e956656a Object: Add proper error handling. 
llvm-svn: 133872
 2011-06-25 17:55:23 +00:00
Michael J. Spencer
d5934fefee Make Binary the parent of ObjectFile and update children to new interface. 
llvm-svn: 133870
 2011-06-25 17:54:50 +00:00
Michael J. Spencer
8288453980 Revert the last two commits in the series. r132911, r132912. 
llvm-svn: 132913
 2011-06-13 11:53:31 +00:00
Michael J. Spencer
642af05937 Make Binary the parent of ObjectFile and update children to new interface. 
llvm-svn: 132911
 2011-06-13 11:12:33 +00:00
Michael J. Spencer
e4fe76fa22 Object: Fix type punned pointer issues by making DataRefImpl a union and using intptr_t. 
llvm-svn: 123962
 2011-01-21 02:27:02 +00:00
Michael J. Spencer
d5ec932c3a Merge System into Support. 
llvm-svn: 120298
 2010-11-29 18:16:10 +00:00
Michael J. Spencer
5c5cfac314 Object: Get rid of sys::Path, Triple, and cleanup namespace. 
llvm-svn: 119309
 2010-11-16 01:06:51 +00:00
Michael J. Spencer
23f31df887 Add LLVMObject Library. 
llvm-svn: 119107
 2010-11-15 03:21:41 +00:00