Commit Graph

13 Commits

Author SHA1 Message Date
Siva Chandra 02f593f0b8 [JITLoaderGDB] Read jit entry struct manually.
Summary:
Though r264012 was fancy enough to make reading the jit entry struct
work with templates, the packing and alignment attributes do not work on
Windows. So, this change makes it plain and simple with manual reading
of the jit entry struct.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D18379

llvm-svn: 264217
2016-03-23 23:27:23 +00:00
Siva Chandra f027e130d8 [JITLoaderGDB] Pack the jit entry struct according to the target arch.
Reviewers: clayborg

Subscribers: tberghammer, dsrbecky, lldb-commits

Differential Revision: http://reviews.llvm.org/D18334

llvm-svn: 264012
2016-03-22 00:35:31 +00:00
Tamas Berghammer 31a2f8f9f5 Add support for handling absolute symbols in ELF
Most address represented in lldb as section plus offset and handling of
absolute addresses is problematic in several location because of lack
of necessary information (e.g. Target) or because of performance issues.

This CL change the way ObjectFileELF handle the absolute symbols with
creating a pseudo section for each symbol. With this change all existing
code designed to work with addresses in the form of section plus offset
will work with absolute symbols as well.

Differential revision: http://reviews.llvm.org/D17450

llvm-svn: 261859
2016-02-25 12:23:43 +00:00
Tamas Berghammer cfcdbde3ce Don't pack the structs of the jit debug interface
None of the documentation mentions that the entries are packed structs
and also none of the other implementation I found pack them.

Differential revision: http://reviews.llvm.org/D15715

llvm-svn: 256244
2015-12-22 15:23:33 +00:00
Oleksiy Vyalov eff9ad2e6e Add plugin.jit-loader.gdb.enable-jit-breakpoint property to make JIT loader breakpoint optional.
http://reviews.llvm.org/D12890

llvm-svn: 247821
2015-09-16 17:38:36 +00:00
Greg Clayton 358cf1ea30 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
2015-06-25 21:46:34 +00:00
Zachary Turner 32abc6edac Reduce header footprint of Target.h
This continues the effort to reduce header footprint and improve
build speed by removing clang and other unnecessary headers
from Target.h.  In one case, some headers were included solely
for the purpose of declaring a nested class in Target, which was
not needed by anybody outside the class.  In this case the
definition and implementation of the nested class were isolated
in the .cpp file so the header could be removed.

llvm-svn: 231107
2015-03-03 19:23:09 +00:00
Todd Fiala 49bc2d9dd3 Fix JITLoaderGDB for 64-bit host and 32-bit target
There are target pointer members in struct jit_code_entry and jit_descriptor.

Data layout of those structures should be decided by target, not host.

This fixes JITLoaderGDB for 64-bit host and 32-bit target.

See http://reviews.llvm.org/D5339 for more details.

Change by Tong Shen.

llvm-svn: 217816
2014-09-15 19:55:27 +00:00
Greg Clayton 48672afb66 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
2014-06-24 22:22:43 +00:00
Greg Clayton 521c2278ab Disable JITLoaderGDB on "vendor == apple" for now due to performance slowdowns for every first run process as a global name lookup in all shared libraries if performed.
<rdar://problem/16542894>

llvm-svn: 205734
2014-04-07 20:13:57 +00:00
Andrew MacPherson eb4d0607bf Create a Process::ModulesDidLoad() method to handle process-related tasks, as suggested by Jim Ingham. Make JITLoader instances use this to probe only new modules for relevant JIT symbols. Also re-enable the JITLoader hooks in Process.
llvm-svn: 203774
2014-03-13 09:37:02 +00:00
Jason Molenda b509a414f0 Add the new JITLoader plugin files to the lldb xcode project file.
Add a cast for a size_t / PRIu64 printf formatter.

llvm-svn: 203030
2014-03-05 23:48:15 +00:00
Andrew MacPherson 17220c1886 Add support for JIT debugging on Linux using the GDB JIT interface. Patch written with Keno Fischer.
llvm-svn: 202956
2014-03-05 10:12:43 +00:00