Commit Graph

15 Commits

Author SHA1 Message Date
Chandler Carruth 802d755533 Sort includes for all of the .h files under the 'lib' tree. These were
missed in the first pass because the script didn't yet handle include
guards.

Note that the script is now able to handle all of these headers without
manual edits. =]

llvm-svn: 169224
2012-12-04 07:12:27 +00:00
Andrew Kaylor fb05a50f6b Change resolveRelocation parameters so the relocations can find placeholder values in the original object buffer.
Some ELF relocations require adding the a value to the original contents of the object buffer at the specified location.  In order to properly handle multiple applications of a relocation, the RuntimeDyld code should be grabbing the original value from the object buffer and writing a new value into the loaded section buffer.  This patch changes the parameters passed to resolveRelocations to accommodate this need.

llvm-svn: 167304
2012-11-02 19:45:23 +00:00
Andrew Kaylor adc70568f9 Clean-up of memory buffer and object ownership model in MCJIT
llvm-svn: 165053
2012-10-02 21:18:39 +00:00
Eli Bendersky fc079081b7 RuntimeDyld code cleanup:
- There's no point having a different type for the local and global symbol
  tables.
- Renamed SymbolTable to GlobalSymbolTable to clarify the intention
- Improved const correctness where relevant

llvm-svn: 155898
2012-05-01 06:58:59 +00:00
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
Danil Malyshev 70d22ccb22 Re-factored RuntimeDyLd:
1. The main works will made in the RuntimeDyLdImpl with uses the ObjectFile class. RuntimeDyLdMachO and RuntimeDyLdELF now only parses relocations and resolve it. This is allows to make improvements of the RuntimeDyLd more easily. In addition the support for COFF can be easily added.

2. Added ARM relocations to RuntimeDyLdELF.

3. Added support for stub functions for the ARM, allowing to do a long branch.

4. Added support for external functions that are not loaded from the object files, but can be loaded from external libraries. Now MCJIT can correctly execute the code containing the printf, putc, and etc.

5. The sections emitted instead functions, thanks Jim Grosbach. MemoryManager.startFunctionBody() and MemoryManager.endFunctionBody() have been removed.
6. MCJITMemoryManager.allocateDataSection() and MCJITMemoryManager. allocateCodeSection() used JMM->allocateSpace() instead of JMM->allocateCodeSection() and JMM->allocateDataSection(), because I got an error: "Cannot allocate an allocated block!" with object file contains more than one code or data sections.

llvm-svn: 153754
2012-03-30 16:45:19 +00:00
Bill Wendling 76fdc4b885 Revert r153694. It was causing failures in the buildbots.
llvm-svn: 153701
2012-03-29 23:23:59 +00:00
Danil Malyshev 3548eaf896 Re-factored RuntimeDyld.
Added ExecutionEngine/MCJIT tests.

llvm-svn: 153694
2012-03-29 21:46:18 +00:00
Sean Callanan a375943d82 Made RuntimeDyldMachO support vanilla i386
relocations.  The algorithm is the same as
that for x86_64.  Scattered relocations, a
feature present in i386 but not on x86_64,
are not yet supported.

llvm-svn: 153466
2012-03-26 20:45:52 +00:00
Chandler Carruth e26dafeb79 Revert a series of commits to MCJIT to get the build working in CMake
(and hopefully on Windows). The bots have been down most of the day
because of this, and it's not clear to me what all will be required to
fix it.

The commits started with r153205, then r153207, r153208, and r153221.
The first commit seems to be the real culprit, but I couldn't revert
a smaller number of patches.

When resubmitting, r153207 and r153208 should be folded into r153205,
they were simple build fixes.

llvm-svn: 153241
2012-03-22 05:44:06 +00:00
Danil Malyshev 70186bef8b Re-factored RuntimeDyld.
Added ExecutionEngine/MCJIT tests.

llvm-svn: 153221
2012-03-21 21:06:29 +00:00
Sean Callanan eba3a66055 RuntimeDyldMachO has the ability to keep track of
relocations (i.e., pieces of data whose addresses
are referred to elsewhere in the binary image) and
update the references when the section containing
the relocations moves.  The way this works is that
there is a map from section IDs to lists of
relocations.

Because the relocations are associated with the
section containing the data being referred to, they
are updated only when the target moves.  However,
many data references are relative and also depend
on the location of the referrer.

To solve this problem, I introduced a new data
structure, Referrer, which simply contains the
section being referred to and the index of the
relocation in that section.  These referrers are
associated with the source containing the
reference that needs to be updated, so now
regardless of which end of the relocation moves,
the relocation will now be updated correctly.

llvm-svn: 153147
2012-03-20 22:25:39 +00:00
Sean Callanan ca92a3da7c Improved support in RuntimeDyldMachO for generating
code that will be relocated into another memory space.
Now when relocations are resolved, the address of
the relocation in the host memory (where the JIT is)
is passed separately from the address that the
relocation will be at in the target memory (where
the code will run).

llvm-svn: 152264
2012-03-07 23:05:25 +00:00
Ahmed Charles 8427eda045 Remove duplicate code in this header file which seemed to undergo a copy/paste fiasco.
llvm-svn: 150369
2012-02-13 09:45:36 +00:00
Eli Bendersky 058d647adf Split the lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h header to smaller logical headers.
ELF and MachO implementations of RuntimeDyldImpl go into their own header files now.

Reviewed on llvm-commits

llvm-svn: 148652
2012-01-22 07:05:02 +00:00