Add support for .ARM.exidx unwind information

.ARM.exidx/.ARM.extab sections contain unwind information used on ARM
architecture from unwinding from an exception.

Differential revision: http://revi

Add support for .ARM.exidx unwind information

.ARM.exidx/.ARM.extab sections contain unwind information used on ARM
architecture from unwinding from an exception.

Differential revision: http://reviews.llvm.org/D13245

llvm-svn: 248903

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[LLDB][MIPS] microMIPS breakpoints, disassembly and compressed addresses
SUMMARY:
This patch detects microMIPS symbols, sets breakpoints using un-compressed address and
display disassemb

[LLDB][MIPS] microMIPS breakpoints, disassembly and compressed addresses
SUMMARY:
This patch detects microMIPS symbols, sets breakpoints using un-compressed address and
display disassembly in mixed mode for microMIPS applications (running on bare-iron targets).

Reviewers: clayborg
Subscribers: nitesh.jain, mohit.bhakkad, sagar, bhushan and lldb-commits
Differential Revision: http://reviews.llvm.org/D12079

llvm-svn: 248248

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Add an OperatingSystem plugin to support goroutines

The Go runtime schedules user level threads (goroutines) across real threads.
This adds an OS plugin to create memory threads for goroutines.
It s

Add an OperatingSystem plugin to support goroutines

The Go runtime schedules user level threads (goroutines) across real threads.
This adds an OS plugin to create memory threads for goroutines.
It supports the 1.4 and 1.5 go runtime.

Differential Revision: http://reviews.llvm.org/D5871

llvm-svn: 247852

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[LLDB][MIPS] Add support for DT_MIPS_RLD_MAP_REL

SUMMARY:
This patch provides support for MIPS specific DT_MIPS_RLD_MAP_REL tag in LLDB.
This tag allows debugging of MIPS position in

[LLDB][MIPS] Add support for DT_MIPS_RLD_MAP_REL

SUMMARY:
This patch provides support for MIPS specific DT_MIPS_RLD_MAP_REL tag in LLDB.
This tag allows debugging of MIPS position independent executables and provides access to shared library information.

Reviewers: clayborg
Subscribers: mohit.bhakkad, sagar, jaydeep, lldb-commits
Differential Revision: http://reviews.llvm.org/D12794

llvm-svn: 247666

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Fix a small typo in ObjectFileELF.cpp.

llvm-svn: 247452

Improve the arm/aarch64 mapping symbol handling

Change the mapping symbol handling to handle the case when the mapping
symbols are prefixed with an arbitrary prefix. This isn't strictly standard
com

Improve the arm/aarch64 mapping symbol handling

Change the mapping symbol handling to handle the case when the mapping
symbols are prefixed with an arbitrary prefix. This isn't strictly standard
compliance, but if all symbols in an object file is prefixed with objcopy
then the prefix will be added to the mapping symbol also. We still want to
treat these symbols as mapping symbols to get the correct address class data.

Differential revision: http://reviews.llvm.org/D12755

llvm-svn: 247400

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[LLDB][MIPS] Added support for the debugging of N32/O32 applications on MIPS64 target.
Patch by Nitesh Jain

Reviewers: clayborg, ovyalov.
Subscribers: jaydeep, bhushan, mohit.bhakkad, sagar, nitesh.

[LLDB][MIPS] Added support for the debugging of N32/O32 applications on MIPS64 target.
Patch by Nitesh Jain

Reviewers: clayborg, ovyalov.
Subscribers: jaydeep, bhushan, mohit.bhakkad, sagar, nitesh.jain, lldb-commits.
Differential Revision: http://reviews.llvm.org/D12671

llvm-svn: 247134

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Add basic fission support to SymbolFileDWARF

* Create new dwo symbol file class
* Add handling for .dwo sections
* Change indexes in SymbolFileDWARF to store compile unit offset next to
DIE offset

Add basic fission support to SymbolFileDWARF

* Create new dwo symbol file class
* Add handling for .dwo sections
* Change indexes in SymbolFileDWARF to store compile unit offset next to
DIE offset
* Propagate queries from dwarf compile unit to the dwo compile unit
where applicable

Differential revision: http://reviews.llvm.org/D12291

llvm-svn: 247132

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Add support for DW_FORM_GNU_[addr,str]_index

These are 2 new value currently in experimental status used when split
debug info is enabled.

Differential revision: http://reviews.llvm.org/D12238

llv

Add support for DW_FORM_GNU_[addr,str]_index

These are 2 new value currently in experimental status used when split
debug info is enabled.

Differential revision: http://reviews.llvm.org/D12238

llvm-svn: 245931

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Add absolute load address support for the DynamicLoader plugins

The POSIX linker generally reports the load bias for the loaded
libraries but in some case it is useful to handle a library based on
a

Add absolute load address support for the DynamicLoader plugins

The POSIX linker generally reports the load bias for the loaded
libraries but in some case it is useful to handle a library based on
absolute load address. Example usecases:
* Windows linker uses absolute addresses
* Library list came from different source (e.g. /proc/<pid>/maps)

Differential revision: http://reviews.llvm.org/D12233

llvm-svn: 245834

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Fix issues with separate symbolfile handling

Differential revision: http://reviews.llvm.org/D11595

llvm-svn: 243637

Fix typos.

Summary: Fix a bunch of typos.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D11386

llvm-svn: 242856

[LLDB][MIPS] Detect MIPS application specific extensions like micromips
SUMMARY:
The patch detects MIPS application specific extensions (ASE) like micromips by reading
ELF header.e_flags

[LLDB][MIPS] Detect MIPS application specific extensions like micromips
SUMMARY:
The patch detects MIPS application specific extensions (ASE) like micromips by reading
ELF header.e_flags and SHT_MIPS_ABIFLAGS section. MIPS triple does not contain ASE
information like micromips, mips16, DSP, MSA etc. These can be read from header.e_flags
or SHT_MIPS_ABIFLAGS section.

Reviewers: clayborg
Subscribers: mohit.bhakkad, sagar, lldb-commits
Differential Revision: http://reviews.llvm.org/D11133

llvm-svn: 242381

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Skip oatdata and oatexec symbols in system@[email protected]

On Android the oatdata and the oatexec symbols in
system@[email protected] covers the full .text section what causes
issues with displa

Skip oatdata and oatexec symbols in system@[email protected]

On Android the oatdata and the oatexec symbols in
system@[email protected] covers the full .text section what causes
issues with displaying unusable symbol name to the user and very slow
unwinding speed because the instruction emulation based unwind plans
try to emulate all instructions in these symbols. Don't add these
symbols to the symbol list as they have no use for the debugger and
they are causing a lot of trouble.

Differential revision: http://reviews.llvm.org/D11065

llvm-svn: 242017

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Make many mangled functions that might demangle a name be allowed to specify a language to use in order to soon support Pascal and Java demangling. Dawn Perchik will take care of making this so.

llv

Make many mangled functions that might demangle a name be allowed to specify a language to use in order to soon support Pascal and Java demangling. Dawn Perchik will take care of making this so.

llvm-svn: 241751

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Use string::find(char) for single character strings.

Summary: Use string::find(char) for single character strings.

Reviewers: abidh, ki.stfu, clayborg

Subscribers: lldb-commits

Differential Revis

Use string::find(char) for single character strings.

Summary: Use string::find(char) for single character strings.

Reviewers: abidh, ki.stfu, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D10943

llvm-svn: 241390

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Fix [vdso] handling on Android (x86 and aarch64)

* Add in-memory object file handling to the core dynamic loader
* Fix in memory object file handling in ObjectFileELF (previously
only part of the

Fix [vdso] handling on Android (x86 and aarch64)

* Add in-memory object file handling to the core dynamic loader
* Fix in memory object file handling in ObjectFileELF (previously
only part of the file was loaded before parsing)
* Fix load address setting in ObjectFileELF for 32-bit targets
when the load bias is negative
* Change hack in DYLDRendezvous.cpp to be more specific and not to
interfere with object files with fixed load address

Differential revision: http://reviews.llvm.org/D10800

llvm-svn: 241057

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Resubmitting 240466 after fixing the linux test suite failures.

A few extras were fixed

- Symbol::GetAddress() now returns an Address object, not a reference. There were places where people were ac

Resubmitting 240466 after fixing the linux test suite failures.

A few extras were fixed

- Symbol::GetAddress() now returns an Address object, not a reference. There were places where people were accessing the address of a symbol when the symbol's value wasn't an address symbol. On MacOSX, undefined symbols have a value zero and some places where using the symbol's address and getting an absolute address of zero (since an Address object with no section and an m_offset whose value isn't LLDB_INVALID_ADDRESS is considered an absolute address). So fixing this required some changes to make sure people were getting what they expected.
- Since some places want to access the address as a reference, I added a few new functions to symbol:
Address &Symbol::GetAddressRef();
const Address &Symbol::GetAddressRef() const;

Linux test suite passes just fine now.

<rdar://problem/21494354>

llvm-svn: 240702

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Fix location of symbol size calculation in ObjectFileELF

Bug introduced by r240533

llvm-svn: 240537

Improve instruction emulation based stack unwinding on ARM

* Add and fix the emulation of several instruction.
* Disable frame pointer usage on Android.
* Specify return address register for the unw

Improve instruction emulation based stack unwinding on ARM

* Add and fix the emulation of several instruction.
* Disable frame pointer usage on Android.
* Specify return address register for the unwind plan instead of explict
tracking the value of RA.
* Replace prologue detection heuristics (unreliable in several cases)
with a logic to follow the branch instructions and restore the CFI
value based on them. The target address for a branch should have the
same CFI as the source address (if they are in the same function).
* Handle symbols in ELF files where the symbol size is not specified
with calcualting their size based on the next symbol (already done
in MachO files).
* Fix architecture in FuncUnwinders with filling up the inforamtion
missing from the object file with the architecture of the target.
* Add code to read register wehn the value is set to "IsSame" as it
meanse the value of a register in the parent frame is the same as the
value in the current frame.

Differential revision: http://reviews.llvm.org/D10447

llvm-svn: 240533

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Improve OSType initialization in elf object file's arch_spec

Setting the OSType in the ArchSpec triple is needed to correctly setup
up the register context plugin. ArchSpec::SetArchitecture, for Mac

Improve OSType initialization in elf object file's arch_spec

Setting the OSType in the ArchSpec triple is needed to correctly setup
up the register context plugin. ArchSpec::SetArchitecture, for Mach-O
only, sets the OSType. For ELF it was left to the ObjectFileELF to fill
in the missing OSType.

This change moves the ObjectFileELF logic into ArchSpec.

A new optional 'os' parameter has been added to SetArchitecture.
For ELF, this value is the from the ELF header.e_ident[EI_OSABI].
The default value is 0 or ELFOSABI_NONE.

The real work of determining the OSType was done by the ObjectFileELF
helper function GetOsFromOSABI. This logic has been moved
SetArchitecture.

GetOsFromOSABI has been commented as being deprectated. It is left in
to support asserts.

For ELF the vendor value returned from SetArchitecture should be
UnknownVendor. An unneeded resetting in ObjectFileELF has been removed
and replaced with an assert.

This fixes a problem reading a core file on FreeBSD/ARM because the spec
triple was arm-unknown-unknown.

Patch by Tom Rix.

Differential Revision: http://reviews.llvm.org/D9292

llvm-svn: 239148

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Fix THUMB function detection when function name is not prefixed.

Differential Revision: http://reviews.llvm.org/D10062

llvm-svn: 238433

Fix parsing of the plt section for android-arm

The ELF data contains two different errors in some ELF files on android.
* The link field of the symbol table don't point to the plt section or
to th

Fix parsing of the plt section for android-arm

The ELF data contains two different errors in some ELF files on android.
* The link field of the symbol table don't point to the plt section or
to the dynsym section even when it is present in the ELF files.
* The size of the plt entries aren't specified in the section header of
the plt section.

This CL adds some workarounds for these two issue with finding the
sections by name if the link field is empty and by using a heuristic to
calculate the size and offset of the plt entries.

Differential revision: http://reviews.llvm.org/D9560

llvm-svn: 236818

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[LLDB][MIPS] Add MIPS32 and MIPS64 core revisions
Patch by Jaydeep Patil

Added MIPS32 and MIPS64 core revisions. This would be followed by register context and emulate-instruction for MIPS32.

DYLDR

[LLDB][MIPS] Add MIPS32 and MIPS64 core revisions
Patch by Jaydeep Patil

Added MIPS32 and MIPS64 core revisions. This would be followed by register context and emulate-instruction for MIPS32.

DYLDRendezvous.cpp:
On Linux link map struct does not contain extra load offset field.

Reviewers: clayborg
Subscribers: bhushan, mohit.bhakkad, sagar, lldb-commits.
Differential Revision: http://reviews.llvm.org/D9190

llvm-svn: 235574

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Remove usages of host architecture within ELF object file for unknown parts of ArchSpec.

http://reviews.llvm.org/D9078

llvm-svn: 235255