667 Commits

Author SHA1 Message Date
Jason Molenda 836534f997 Add more detailed symbol type categorization, based on a swift patch by
Greg Clayton a few years ago.

My patch to augment the symbol table in Mach-O files with the
dyld trie exports data structure only categorized symbols as code
or data, but Greg Clayton had a patch to do something similar to
swift a few years ago that had a more extensive categorization of
symbols, as well as extracting some objc class/ivar names from the
entries. This patch is basically just Greg's, updated a bit and
with a test case added to it.

<rdar://problem/50791451>

Differential Revision: https://reviews.llvm.org/D77369
2020-04-06 14:05:33 -07:00
Kazuaki Ishizaki e9264b746b [lldb] NFC: Fix trivial typo in comments, documents, and messages
Differential Revision: https://reviews.llvm.org/D77460
2020-04-07 01:06:16 +09:00
Martin Storsjö aa786b881f [lldb] [PECOFF] Only use PECallFrameInfo on the one supported architecture
The RuntimeFunction struct, which PECallFrameInfo interprets, has a
different layout and differnet semantics on all architectures.

Differential Revision: https://reviews.llvm.org/D77000
2020-04-01 12:39:21 +03:00
Benjamin Kramer e8f13f4f62 Replace std::string::find == 0 with StringRef::startswith
This is both more readable and faster. Found by clang-tidy's
abseil-string-find-startswith.
2020-03-31 21:01:09 +02:00
Kai Wang 581ba35291 [RISCV] ELF attribute section for RISC-V.
Leverage ARM ELF build attribute section to create ELF attribute section
for RISC-V. Extract the common part of parsing logic for this section
into ELFAttributeParser.[cpp|h] and ELFAttributes.[cpp|h].

Differential Revision: https://reviews.llvm.org/D74023
2020-03-31 16:16:19 +08:00
Jason Molenda f0a5af906b Merge in symbols from Mach-O dyld trie to the symbol table
In ObjectFileMachO we construct the symbol table from multiple
sources -- primarily the binary's nlist records, but when the nlist
symbols have been stripped, we would augment those with function
start address from the LC_FUNCTION_STARTS or eh_frame.  This patch
adds another source of symbols - the exported symbols that the
dynamic linker, dyld, uses at runtime from its trie structure.  This
provides us names and addresses for these functions/data.

This patch removes the code from ParseSymtab that would reject an
empty symbol table / nlist source.  It adds a new symbols_added
set which tracks the address of every symbol we've added to the
symtab.  We add symbols in most-information-ful order, and before
adding a symbol from less-informational-ful source (e.g.
LC_FUNCTION_STARTS with no function name), we check if that symbol
has already been added.

On targets with thumb code generation, instead of using the 0th bit
in these addresses in FunctionStarts (or now the trie entries), we
use the data field of FunctionStarts (formerly used to track if the
func_start should be added) and a flag for the trie entries to
encode this, and only store the actual addresses in the symbols_seen
and these vectors.

<rdar://problem/50791451>

Differential revision: https://reviews.llvm.org/D76758
2020-03-27 22:53:15 -07:00
Davide Italiano 34ee941f6d [ObjectFileMachO] Fix a build error on embedded. 2020-02-26 14:31:48 -08:00
Pavel Labath 7b59ff2fa0 [lldb] Add boilerplate to recognize the .debug_tu_index section
It's just like debug_cu_index, only for type units.
2020-02-20 13:44:21 +01:00
Pavel Labath b807a28787 [lldb] Merge RangeArray and RangeVector
The two classes are equivalent, except:
- the former uses a llvm::SmallVector (with a configurable size), while
  the latter uses std::vector.
- the former has a typo in one of the functions name

This patch just leaves one class, using llvm::SmallVector, and defaults
the small size to zero. This is the same thing we did with the
RangeDataVector class in D56170.
2020-02-18 15:22:55 +01:00
Jonas Devlieghere cdc514e4c6 [lldb] Update header guards to be consistent and compliant with LLVM (NFC)
LLDB has a few different styles of header guards and they're not very
consistent because things get moved around or copy/pasted. This patch
unifies the header guards across LLDB and converts everything to match
LLVM's style.

Differential revision: https://reviews.llvm.org/D74743
2020-02-17 23:15:40 -08:00
Jonas Devlieghere aa2ae6af81 [lldb/Plugins] Add missing initialize/terminate calls
Add missing initialize and terminate calls for DynamicLoaderHexagonDYLD
and ObjectFileJIT.
2020-02-17 21:28:16 -08:00
Jonas Devlieghere 50c9cd9526 Revert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
This is still failing spectacularly on the Windows bot and I still have
no clue what's going on.
2020-02-17 19:04:50 -08:00
Jonas Devlieghere 9b12dc98fd Re-land "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
This patch changes the way we initialize and terminate the plugins in
the system initializer. It uses an approach similar to LLVM's
TARGETS_TO_BUILD with a def file that enumerates the plugins.

The previously landed patch got reverted because it was lacking:

 (1) A plugin definition for the Objective-C language runtime,
 (2) The dependency between the Static and WASM dynamic loader,
 (3) Explicit initialization of ScriptInterpreterNone for lldb-test.

All issues have been addressed in this patch.

Differential revision: https://reviews.llvm.org/D73067
2020-02-17 14:43:05 -08:00
Jonas Devlieghere 058cb1b47f Revert "[lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin"
This temporarily reverts commit 7d6da329de
because it's causing test failures on the bots.
2020-02-17 12:34:21 -08:00
Jonas Devlieghere 7d6da329de [lldb/CMake] Auto-generate the Initialize and Terminate calls for plugin
This patch changes the way we initialize and terminate the plugins in
the system initializer. It uses an approach similar to LLVM's
TARGETS_TO_BUILD with a def file that enumerates the plugins.

Differential revision: https://reviews.llvm.org/D73067
2020-02-17 09:07:00 -08:00
Paolo Severini c1121908aa [LLDB] Add DynamicLoaderWasmDYLD plugin for WebAssembly debugging
Add a dynamic loader plug-in class for WebAssembly modules.

Differential Revision: https://reviews.llvm.org/D72751
2020-02-17 12:42:23 +01:00
Jonas Devlieghere bba9ba8d95 [lldb/Plugin] s/LLDB_PLUGIN/LLDB_PLUGIN_DEFINE/ (NFC)
Rename LLDB_PLUGIN to LLDB_PLUGIN_DEFINE as Pavel suggested in D73067 to
avoid name conflict.
2020-02-14 09:58:24 -08:00
Jan Kratochvil 98c940bf51 [NFC] [lldb] Remove unused declaration
ObjectFileELF::GetSectionIndexByType declaration without definition was
added by commit 17220c1886.
2020-02-11 14:59:52 +01:00
Martin Storsjö 6115bd9ba2 [LLDB] Fix GCC warnings about extra semicolons. NFC. 2020-02-10 11:20:44 +02:00
Jonas Devlieghere fbb4d1e43d [lldb/Plugins] Use external functions to (de)initialize plugins
This is a step towards making the initialize and terminate calls be
generated by CMake, which in turn is towards making it possible to
disable plugins at configuration time.

Differential revision: https://reviews.llvm.org/D74245
2020-02-07 15:28:27 -08:00
Pavel Labath 40efa65de8 Revert "[LLDB] Add DynamicLoaderWasmDYLD plugin for WebAssembly debugging"
This patch has a couple of outstanding issues. The test is not python3
compatible, and it also seems to fail with python2 (at least under some
circumstances) due to an overambitious assertion.

This reverts the patch as well as subsequent fixup attempts:
014ea93376,
f5f70d1c8f.
4697e701b8.
5c15e8e682.
3ec28da6d6.
2020-02-05 16:22:19 -08:00
Paolo Severini 3ec28da6d6 [LLDB] Add DynamicLoaderWasmDYLD plugin for WebAssembly debugging
Add a dynamic loader plug-in class for WebAssembly modules.

Differential Revision: https://reviews.llvm.org/D72751
2020-02-05 14:49:36 -08:00
Michał Górny 98594a44aa [lldb] [ObjectFile/ELF] Fix negated seg ids on 32-bit arches
Scale segment identifier up to user_id_t before negating it.  This fixes
the identifers being wrongly e.g. 0x00000000fffffffe instead of
0xfffffffffffffffe.  Fix suggested by Pavel Labath.

This fixes 5 tests failing on i386 (PR #44748):

  lldb-shell :: ObjectFile/ELF/PT_LOAD-overlap-PT_INTERP.yaml
  lldb-shell :: ObjectFile/ELF/PT_LOAD-overlap-PT_TLS.yaml
  lldb-shell :: ObjectFile/ELF/PT_LOAD-overlap-section.yaml
  lldb-shell :: ObjectFile/ELF/PT_LOAD.yaml
  lldb-shell :: ObjectFile/ELF/PT_TLS-overlap-PT_LOAD.yaml

Differential Revision: https://reviews.llvm.org/D73914
2020-02-04 05:50:56 +01:00
Alex Langford 22b044877d [lldb][NFCI] Remove unused LanguageType parameters
These parameters are unused in these methods, and some of them only had a
LanguageType parameter to pipe to other methods that don't use it
either.
2020-01-30 21:57:23 -08:00
Benjamin Kramer adcd026838 Make llvm::StringRef to std::string conversions explicit.
This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.

This doesn't actually modify StringRef yet, I'll do that in a follow-up.
2020-01-28 23:25:25 +01:00