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
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
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
Based on the POSIX x86_64 register context. This is sufficient for opening
a mips64 (big endian) core file. Subsequent changes will connect the
disassembler, dynamic loader support, ABI, etc.
Review: http://llvm-reviews.chandlerc.com/D1873
(Missed "svn add" on this file in r192335)
llvm-svn: 192336
Based on the POSIX x86_64 register context. This is sufficient for opening
a mips64 (big endian) core file. Subsequent changes will connect the
disassembler, dynamic loader support, ABI, etc.
Review: http://llvm-reviews.chandlerc.com/D1873
llvm-svn: 192335
Use 32-bit register enums without gaps on 64-bit hosts.
Don't show 64-bit registers when debugging 32-bit targets.
Add psuedo gpr registers (ax, ah, al, etc.)
Add mmx registers.
Fix TestRegisters.py to not read ymm15 register on 32-bit targets.
Fill out and move gcc/dwarf/gdb register enums to RegisterContext_x86.h
llvm-svn: 192263
This change removes the final instances of compile-time #ifdef magic
from the elf core plugin. Also rename the classes to ELFLinux... as
they're specific to Linux.
llvm-svn: 186977
Extracting thread data at parse time simplifies multi-platform support.
This change adds FreeBSD thread names and auxv info.
Thanks to Samuel Jacob for review, testing, and improvements.
llvm-svn: 186975
ELF notes contain a 'name' field, which specifies a vendor who defines
the format of the note. Examples are 'FreeBSD' or 'GNU', or it may be
empty for generic notes.
Add a case for FreeBSD-specific notes, leaving Linux and GNU notes,
other vendor-specific notes, and generic notes to be handled by the
existing code for now.
Thanks to Samuel Jacob for reviewing and suggesting improvements.
llvm-svn: 186973
Instantiate RegisterContextCore... based on getOS() instead of with
compile-time #ifdef-ery.
The assert()s here are unfortunate, but better than crashing with no
explanation. (This would previously happen for an unsupported
architecture, anyhow.)
We should add an equivalent OS and architecture test to
ProcessElfCore::DoLoadCore() and cleanly report the error to the user.
llvm-svn: 186865
On FreeBSD I see that Arch, Vendor, OS, and Environment are unchanged
after this call (for x86_64, at least), and core debugging works without
it.
If we need to restore it we should be able to switch on
arch.GetTriple.getOS() instead of a compile-time #ifdef.
Thanks to Daniel Malea for testing on Linux.
llvm-svn: 186862
On FreeBSD we have only one NT_PRPSINFO in a core file, regardless of the
number of threads. Consider a new thread to start whenever we see another
instance of either NT_PRPSINFO or NT_PRSTATUS.
Thanks to Samuel Jacob for testing this patch on Linux cores.
llvm-svn: 186633
Compile-time #ifdef-ery isn't right, but this makes core debugging work on
FreeBSD and highlights the parts that will need to be changed for runtime
arch support.
llvm-svn: 186534
Usage: 'lldb a.out -c core'.
TODO: FreeBSD support.
TODO: Support for AVX registers.
TODO: Refactor so that RegisterContextCore* don't inherit from classes that use ProcessMonitor
to fix the build on OS/X.
llvm-svn: 186516
RegisterContextCoreLinux_x86_64 inherits from RegisterContextLinux_x86_64 which inherits from RegisterContext_x86_64 which uses has:
ProcessMonitor &GetMonitor();
This register context used by the core file can't use this since the process plug-in will be ProcessElfCore and the implementation of GetMonitor() does:
ProcessMonitor &
RegisterContext_x86_64::GetMonitor()
{
ProcessSP base = CalculateProcess();
ProcessPOSIX *process = static_cast<ProcessPOSIX*>(base.get());
return process->GetMonitor();
}
ProcessELFCore doesn't, nor should it inherit from ProcessPOSIX and any call to GetMonitor() will fail for ELF core files.
Suggested cleanups:
- Make a register context class that is a base class that doesn't have any reading smarts, then make one that uses ProcessPOSIX and the has the GetMonitor() call, and one that gets its data straight from the core file.
llvm-svn: 186223
Ed Maste