Replace GCC-specific intrinsic with portable alternative.

Not all supported compilers have GCC intrinsics, so this patch
uses the correct portable alternative.

Additionally, this patch fixes an off

Replace GCC-specific intrinsic with portable alternative.

Not all supported compilers have GCC intrinsics, so this patch
uses the correct portable alternative.

Additionally, this patch fixes an off-by-one error. __builtin_ffs
returns the 1-based index of the least-significant 1-bit, but the
function expects the base 2 logarithm of the number, which is
equivalent to the 0-based index of the least-significant 1-bit.

Reviewed by: Keno Fischer

Differential Revision: http://reviews.llvm.org/D4284

llvm-svn: 211669

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Patch from Keno Fischer to enable JITLoaderGDB with mach-o file support.

The patch is as is with the functionality left disabled for apple vendors because of performance regressions. If this is enab

Patch from Keno Fischer to enable JITLoaderGDB with mach-o file support.

The patch is as is with the functionality left disabled for apple vendors because of performance regressions. If this is enabled it ends up searching for symbols in all shared libraries that are loadeded.

llvm-svn: 211638

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<rdar://problem/14515139>

Add a GetFoundationVersion() to AppleObjCRuntime
This API is used to return and cache the major version of Foundation.framework, which is potentially a useful piece of data

<rdar://problem/14515139>

Add a GetFoundationVersion() to AppleObjCRuntime
This API is used to return and cache the major version of Foundation.framework, which is potentially a useful piece of data to key off of to enable or disable certain ObjC related behaviors (especially in data formatters)

llvm-svn: 204756

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Improve Elf object file UUID calculation performance.

This change makes significant improvements in the performance of
calculating a UUID within ObjectFileELF, and handles both running
processes and

Improve Elf object file UUID calculation performance.

This change makes significant improvements in the performance of
calculating a UUID within ObjectFileELF, and handles both running
processes and core files correctly. This does lazy evaluation of
UUID generation and caches the result when calculated.

Change by Piotr Rak.

llvm-svn: 204749

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Cleanup some dead assignements reported by scan-build

No functionnal change.

llvm-svn: 204545

Add support for JIT debugging on Linux using the GDB JIT interface. Patch written with Keno Fischer.

llvm-svn: 202956

remove dead code + simplify a little

llvm-svn: 201865

Modified ObjectFile::SetLoadAddress() to now be:

ObjectFile::SetLoadAddress (Target &target,
lldb::addr_t value,
bool value_is_offset);

Now "

Modified ObjectFile::SetLoadAddress() to now be:

ObjectFile::SetLoadAddress (Target &target,
lldb::addr_t value,
bool value_is_offset);

Now "value" is a slide if "value_is_offset" is true, and "value" is an image base address otherwise. All previous usage of this API was using slides.

Updated the ObjectFileELF and ObjectFileMachO SetLoadAddress methods to do the right thing.

Also updated the ObjectFileMachO::SetLoadAddress() function to not load __LINKEDIT when it isn't needed and to only load sections that belong to the executable object file.

llvm-svn: 201003

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Factor some methods that were in DynamicLoaderPOSIXDYLD.

Move some code that was in DynamicLoaderPOSIXDLYD into the
base class DynamicLoader. In the case of UpdateLoadedSections(),
the test to see

Factor some methods that were in DynamicLoaderPOSIXDYLD.

Move some code that was in DynamicLoaderPOSIXDLYD into the
base class DynamicLoader. In the case of UpdateLoadedSections(),
the test to see whether a file is loadable (its address is zero)
is not generally applicable so that test is changed to a more
universally applicable check for the SHF_ALLOC flag on the section.

Also make it explicit that the reading of the module_id in
DynamicLoaderPOSIXDYLD::GetThreadLocalData() is using a hardcoded
size (of module_id) of 4, which might not be appropriate on
big-endian 64-bit systems, leaving a FIXME comment in place.

llvm-svn: 200939

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elf: Move elf note parsing to ObjectFileELF.cpp

Separate ELF note implementations were introduced for core files and
GNU build-id. Move the more general one from elf-core to ObjectFileELF
and use i

elf: Move elf note parsing to ObjectFileELF.cpp

Separate ELF note implementations were introduced for core files and
GNU build-id. Move the more general one from elf-core to ObjectFileELF
and use it for build-id as well.

Review: http://llvm-reviews.chandlerc.com/D1902
llvm-svn: 196125

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Simplify indirect rld_map for mips (rework r192408).

Just pass a Target* into ObjectFileELF::GetImageInfoAddress so that
it can do the extra dereference necessary on MIPS, instead of passing
a flag

Simplify indirect rld_map for mips (rework r192408).

Just pass a Target* into ObjectFileELF::GetImageInfoAddress so that
it can do the extra dereference necessary on MIPS, instead of passing
a flag back to the caller.

Review: http://llvm-reviews.chandlerc.com/D1899
llvm-svn: 192469

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Support mips shared object debug info

MIPS's .dyanamic section is read-only. Instead of using DT_DEBUG for
the pointer to dyld information it uses a separate tag DT_MIPS_RLD_MAP
which points to sto

Support mips shared object debug info

MIPS's .dyanamic section is read-only. Instead of using DT_DEBUG for
the pointer to dyld information it uses a separate tag DT_MIPS_RLD_MAP
which points to storage in the read-write .rld_map section, which in
turn points to the dyld information.

Review: http://llvm-reviews.chandlerc.com/D1890
llvm-svn: 192408

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Adds an option to resolve a symbol from an address that can be used
to build out the symbol table as addresses are used, and implements
the mechanism for ELF to add stripped symbols from eh_frame.

U

Adds an option to resolve a symbol from an address that can be used
to build out the symbol table as addresses are used, and implements
the mechanism for ELF to add stripped symbols from eh_frame.

Uses this mechanism to allow disassembly for addresses corresponding
to stripped symbols for ELF, and provide hooks to implement this for
PE COFF.

Also removes eSymbolContextTailCall in favor of an option for
ResolveSymbolContextForAddress for consistency with the documentation
for eSymbolContextEverything. Essentially, this is just an option for
interpreting the so_addr.


llvm-svn: 191307

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Round plt entsize to addralign

llvm-svn: 189066

simple plugin now works with Linux fix assert in SetPluginInfo implement Linux ePathTypeLLDBSystemPlugins and ePathTypeLLDBUserPlugins implement Linux Host::Backtrace and Host::GetEnvironment add .gn

simple plugin now works with Linux fix assert in SetPluginInfo implement Linux ePathTypeLLDBSystemPlugins and ePathTypeLLDBUserPlugins implement Linux Host::Backtrace and Host::GetEnvironment add .gnu_debugdata comment

Differential Revision: http://llvm-reviews.chandlerc.com/D1159

llvm-svn: 186475

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Adds methods to ObjectFileELF to access data in ELF segments
in preparation to add support for ELF core files.

Patch by Samuel Jacob!

llvm-svn: 186114

Cleanup on the unified section list changes. Main changes are:
- ObjectFile::GetSymtab() and ObjectFile::ClearSymtab() no longer takes any flags
- Module coordinates with the object files and contain

Cleanup on the unified section list changes. Main changes are:
- ObjectFile::GetSymtab() and ObjectFile::ClearSymtab() no longer takes any flags
- Module coordinates with the object files and contain a unified section list so that object file and symbol file can share sections when they need to, yet contain their own sections.

Other cleanups:
- Fixed Symbol::GetByteSize() to not have the symbol table compute the byte sizes on the fly
- Modified the ObjectFileMachO class to compute symbol sizes all at once efficiently
- Modified the Symtab class to store a file address lookup table for more efficient lookups
- Removed Section::Finalize() and SectionList::Finalize() as they did nothing
- Improved performance of the detection of symbol files that have debug maps by excluding stripped files and core files, debug files, object files and stubs
- Added the ability to tell if an ObjectFile has been stripped with ObjectFile::IsStripped() (used this for the above performance improvement)

llvm-svn: 185990

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Fix ObjectFileELF crc32 code used when no build id is present.

Differential Revision: http://llvm-reviews.chandlerc.com/D1081

llvm-svn: 185494

Split symbol support for ELF and Linux.

llvm-svn: 185366

Adds PT_TLS and PT_GNU_EH_FRAME names to DumpELFProgramHeaders

llvm-svn: 182619

ObjectFileELF::GetModuleSpecifications on Linux should work now.
Which means "platform process list" should work and list the architecture.
We are now parsing the elf build-id if it exists, which sho

ObjectFileELF::GetModuleSpecifications on Linux should work now.
Which means "platform process list" should work and list the architecture.
We are now parsing the elf build-id if it exists, which should allow us to load stripped symbols (looking at that next).

llvm-svn: 182610

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Comment out ObjectFileELF::GetModuleSpecifications() function until I can debug where it's causing tests to fail.

llvm-svn: 182069

Implement ObjectFileELF::GetModuleSpecifications(), and add PlatformLinux code to deal with unknown arch properties.

CR: Greg Clayton
llvm-svn: 182065

Fix ObjectFileELF to not use the file_offset twice.

llvm-svn: 182061

<rdar://problem/13854277>
<rdar://problem/13594769>

Main changes in this patch include:
- cleanup plug-in interface and use ConstStrings for plug-in names
- Modfiied the BSD Archive plug-in to be ab

<rdar://problem/13854277>
<rdar://problem/13594769>

Main changes in this patch include:
- cleanup plug-in interface and use ConstStrings for plug-in names
- Modfiied the BSD Archive plug-in to be able to pick out the correct .o file when .a files contain multiple .o files with the same name by using the timestamp
- Modified SymbolFileDWARFDebugMap to properly verify the timestamp on .o files it loads to ensure we don't load updated .o files and cause problems when debugging

The plug-in interface changes:

Modified the lldb_private::PluginInterface class that all plug-ins inherit from:

Changed:

virtual const char * GetPluginName() = 0;

To:

virtual ConstString GetPluginName() = 0;

Removed:

virtual const char * GetShortPluginName() = 0;

- Fixed up all plug-in to adhere to the new interface and to return lldb_private::ConstString values for the plug-in names.
- Fixed all plug-ins to return simple names with no prefixes. Some plug-ins had prefixes and most ones didn't, so now they all don't have prefixed names, just simple names like "linux", "gdb-remote", etc.

llvm-svn: 181631

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