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154 Commits

Author SHA1 Message Date
Preston Gurd cc31af9328 Implement GDB integration for source level debugging of code JITed using 
the MCJIT execution engine.

The GDB JIT debugging integration support works by registering a loaded
object image with a pre-defined function that GDB will monitor if GDB
is attached. GDB integration support is implemented for ELF only at this
time. This integration requires GDB version 7.0 or newer.

Patch by Andy Kaylor!

 

llvm-svn: 154868
 2012-04-16 22:12:58 +00:00
Benjamin Kramer a737f7de2b Remove unused variable. 
llvm-svn: 154661
 2012-04-13 08:09:12 +00:00
Preston Gurd 2138ef6d3d This patch improves the MCJIT runtime dynamic loader by adding new handling 
of zero-initialized sections, virtual sections and common symbols
and preventing the loading of sections which are not required for
execution such as debug information.

Patch by Andy Kaylor!

llvm-svn: 154610
 2012-04-12 20:13:57 +00:00
Danil Malyshev 549515e128 Add a constructor for DataRefImpl and remove excess initialization. 
llvm-svn: 154371
 2012-04-10 01:54:44 +00:00
Dylan Noblesmith 6338485d59 Object: drop bogus VMCore dependency 
llvm-svn: 153956
 2012-04-03 15:48:10 +00:00
Michael J. Spencer 9da9e6937f [Object/COFF]: Expose getSectionContents. 
llvm-svn: 153051
 2012-03-19 20:27:37 +00:00
Michael J. Spencer 53c2d5477a [Object/COFF]: Expose getSectionName. 
Also add some documentation.

llvm-svn: 153050
 2012-03-19 20:27:15 +00:00
Michael J. Spencer 7a89e0cc01 Fix bug found by warning. 
llvm-svn: 152812
 2012-03-15 17:49:29 +00:00
David Meyer d53422d1a7 [Object] 
Make Binary::TypeID more granular, to distinguish between ELF 32/64 little/big

llvm-svn: 152435
 2012-03-09 20:41:57 +00:00
David Meyer c429b80da1 [Object] 
Add ObjectFile::getLoadName() for retrieving the soname/installname of a shared object.

llvm-svn: 151845
 2012-03-01 22:19:54 +00:00
David Meyer 2fc34c5f84 [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.

llvm-svn: 151785
 2012-03-01 01:36:50 +00:00
David Meyer 7e4b976c36 [Object] Add symbol attribute flags: ST_ThreadLocal, ST_Common, and ST_Undefined. Implement these completely for ELF. 
Rename ST_External to ST_Unknown, and slightly change its semantics. It now only indicates that the symbol's type
is unknown, not that the symbol is undefined. (For that, use ST_Undefined).

llvm-svn: 151696
 2012-02-29 02:11:55 +00:00
David Meyer 1df4b84db4 In the ObjectFile interface, replace isInternal(), isAbsolute(), isGlobal(), and isWeak(), with a bitset of flags. 
llvm-svn: 151670
 2012-02-28 23:47:53 +00:00
Michael J. Spencer 8c4729fd44 [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
Benjamin Kramer 453173f09a Remove static ctor. 
llvm-svn: 151160
 2012-02-22 13:42:11 +00:00
Eli Bendersky c7d23ddbbb 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
Dylan Noblesmith 1d966ae18e Object: avoid undefined behavior when bounds-checking 
Don't form an out of bounds pointer just to test if it
would be out of bounds.

Also perform the same bounds checking for all the previous
mapped structures.

llvm-svn: 149750
 2012-02-04 02:41:39 +00:00
Matt Beaumont-Gay 88297ef665 Sink assert-only variables into the asserts 
llvm-svn: 148849
 2012-01-24 19:43:30 +00:00
Matt Beaumont-Gay 54db64e2e4 Silence warnings in -asserts build 
llvm-svn: 148715
 2012-01-23 18:46:04 +00:00
Eli Bendersky bff72ba77e Remove trailing spaces 
llvm-svn: 148654
 2012-01-22 09:02:48 +00:00
Eli Bendersky c3c80f0986 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
Rafael Espindola 2d3dac3e87 Remove unused variables. 
llvm-svn: 147261
 2011-12-25 01:20:19 +00:00
David Blaikie a379b18173 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch 
llvm-svn: 146960
 2011-12-20 02:50:00 +00:00
Daniel Dunbar 27a7489a03 LLVMBuild: Remove trailing newline, which irked me. 
llvm-svn: 146409
 2011-12-12 19:48:00 +00:00
Daniel Dunbar 539d0a8a09 build/CMake: Finish removal of add_llvm_library_dependencies. 
llvm-svn: 145420
 2011-11-29 19:25:30 +00:00
Danil Malyshev cbe72fc959 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
Daniel Dunbar 9339d4556e Fix some possible gcc-4.2 may be used uninitialized warnings. 
llvm-svn: 145292
 2011-11-28 22:19:32 +00:00
Chandler Carruth 37ab257b88 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 2631f93f7d 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 d27d51fbaf Object/COFF: Support common symbols. 
llvm-svn: 144861
 2011-11-16 23:36:12 +00:00
Daniel Dunbar 52823cc91c build: Attempt to rectify inconsistencies between CMake and LLVMBuild versions of explicit dependencies. 
- The hope is that we have a tool/test to verify these are accurate (and tight) soon.

llvm-svn: 144444
 2011-11-12 02:10:57 +00:00
Michael J. Spencer d5930ca99d Object/COFF: Fix PE reading. 
llvm-svn: 144148
 2011-11-08 23:34:07 +00:00
Benjamin Kramer c1cb1be9b4 MachOObject: Use DataExtractor's uleb parser instead of rolling our own. 
llvm-svn: 143810
 2011-11-05 12:13:21 +00:00
Benjamin Kramer 4246ca4021 Simplify code. 
llvm-svn: 143695
 2011-11-04 13:52:17 +00:00
Daniel Dunbar bf9bba47a1 build: Add initial cut at LLVMBuild.txt files. 
llvm-svn: 143634
 2011-11-03 18:53:17 +00:00
Chad Rosier d294af104a Removed unused variable. 
llvm-svn: 143591
 2011-11-02 23:21:55 +00:00
Michael J. Spencer d0f5b0e194 object/COFF: Properly initalize uses of DataRefImpl. 
llvm-svn: 143562
 2011-11-02 19:33:26 +00:00
Michael J. Spencer e03ea9cd71 Object/Archive: Add symbol table iteration. 
llvm-svn: 143561
 2011-11-02 19:33:12 +00:00
Owen Anderson debe01c660 If we're searching for a symbol reference to pretty-print a scattered relocation address, and we don't find a symbol table entry, try section begin addresses as well. 
llvm-svn: 143151
 2011-10-27 21:53:50 +00:00
Owen Anderson 62972f5cd3 Fix pretty printing of i386 local sect diff relocations, TLV relocations, and x86_64 TLV relocations in MachO. 
llvm-svn: 143140
 2011-10-27 20:46:09 +00:00
Owen Anderson f7a89d06ec Expose relocation accessors through the libObject C API. 
llvm-svn: 143109
 2011-10-27 17:32:36 +00:00
Owen Anderson e245af65fa Add relocation iterators to the libObject C API. 
llvm-svn: 143107
 2011-10-27 17:15:47 +00:00
Owen Anderson bc14bd3bfb Add support for scattered relocations to the MachO relocatation pretty printer. 
llvm-svn: 143051
 2011-10-26 20:42:54 +00:00
Owen Anderson 90c49c037e The order of the two symbol listings in a Macho x86_64 subtractor relocation is reversed from what seems intuitive to me. 
llvm-svn: 143035
 2011-10-26 17:28:49 +00:00
Owen Anderson 04e46b6ae4 Include the full 64 bits of relocation data in the type info for MachO relocations, so that we can recognize scattered relocations. 
llvm-svn: 143033
 2011-10-26 17:10:22 +00:00
Owen Anderson 7be76590e6 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 b92de2de71 Improve pretty printing of GOT relocations in MachO on x86_64. 
llvm-svn: 143031
 2011-10-26 17:05:20 +00:00
Eric Christopher ff37313f12 Remove unused variable. 
llvm-svn: 143011
 2011-10-26 03:47:16 +00:00
Michael J. Spencer 6e080ddb31 Object/Archive: Cleanup anon namespace. 
llvm-svn: 142983
 2011-10-25 22:31:11 +00:00
Michael J. Spencer 9aaa852336 Object/Archive: Add BSD style long file name support and skip internal members. 
llvm-svn: 142981
 2011-10-25 22:30:42 +00:00