cc31af9328
Implement GDB integration for source level debugging of code JITed using
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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
c7d23ddbbb
Expose the ELFObjectFile class directly in the Object/ELF.h header, similarly
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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
1d966ae18e
Object: avoid undefined behavior when bounds-checking
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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
88297ef665
Sink assert-only variables into the asserts
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llvm-svn: 148849
2012-01-24 19:43:30 +00:00
54db64e2e4
Silence warnings in -asserts build
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llvm-svn: 148715
2012-01-23 18:46:04 +00:00
c3c80f0986
Basic runtime dynamic loading capabilities added to ELFObjectFile, implemented
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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
cbe72fc959
Fixed ObjectFile functions:
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- 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
37ab257b88
Revert r145180 as it is causing test failures on all the bots.
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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
2631f93f7d
Fixed ObjectFile functions:
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- 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
7be76590e6
Expand relocation type field to 64 bits. MachO scattered relocations require 33 bits of type info.
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llvm-svn: 143032
2011-10-26 17:08:49 +00:00
1d19f97ea5
Object: Add some types to SymbolRef::Type.
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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
321731539e
Object: Add isSymbolAbsolute and getSymbolSection.
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llvm-svn: 142317
2011-10-17 23:54:46 +00:00
017597540e
Object: Add isSymbolWeak.
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llvm-svn: 142316
2011-10-17 23:54:22 +00:00
4f91c2f2bd
Object: Implement casting for concrete classes.
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llvm-svn: 142314
2011-10-17 23:53:37 +00:00
d39466760a
Object: Fix redundant name.
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llvm-svn: 142238
2011-10-17 20:19:29 +00:00
834bd602e6
ELF: Fix the section that relocations apply to. Add test to verify. Patch by Danil Malyshev!
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llvm-svn: 141901
2011-10-13 22:30:10 +00:00
d3043965b9
Elf_Word is not POD! Stop using it in a DenseMap.
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llvm-svn: 141851
2011-10-13 03:30:21 +00:00
9bfcf77638
lib/Object/ELFObjectFile.cpp: Fix undefined behavior for MC/ELF/many-section.s not to fail (on msvc).
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DenseMap::lookup(k) would return "default constructor value" when k was not met. It would be useless when value type were POD.
llvm-svn: 141774
2011-10-12 10:28:55 +00:00
43f01cae95
Reapply r141605 with fixes for appropriate handling of reserved section numbers
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in st_shndx fields.
llvm-svn: 141639
2011-10-11 03:18:58 +00:00
7adc4370e0
Add support for .symtab_shnidx. Unfortunately, doing this required breaking a
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layer of abstraction around SymbolRef where you can read its private
SymbolPimpl member.
llvm-svn: 141636
2011-10-11 02:57:48 +00:00
35a90c4baf
Revert r141605 as it broke tests for llvm-nm.
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llvm-svn: 141614
2011-10-11 00:38:56 +00:00
fdbb7c51e9
Add support for reading many-section ELF files.
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If you want to tackle adding the testcase, let me know. It's a 4.2MB ELF file
and I'll be happy to mail it to you.
llvm-svn: 141605
2011-10-11 00:15:42 +00:00
7989460a1f
Object: add getSectionAlignment.
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llvm-svn: 141581
2011-10-10 21:55:43 +00:00
cfb6cc7b14
Fix GCC again.
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llvm-svn: 141389
2011-10-07 19:46:12 +00:00
e5fd004719
Change relocation API to be per section. This time without breaking GCC.
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llvm-svn: 141385
2011-10-07 19:25:32 +00:00
Preston Gurd
Eli Bendersky
Dylan Noblesmith
Matt Beaumont-Gay
Danil Malyshev
Chandler Carruth
Owen Anderson
Michael J. Spencer
Nick Lewycky
NAKAMURA Takumi