Commit Graph

185 Commits

Author SHA1 Message Date
Zachary Turner 7d86ee5ab0 Resubmit FileSystem changes.
This was originall reverted due to some test failures in
ModuleCache and TestCompDirSymlink.  These issues have all
been resolved and the code now passes all tests.

Differential Revision: https://reviews.llvm.org/D30698

llvm-svn: 297300
2017-03-08 17:56:08 +00:00
Pavel Labath 30e6cbfcfc Revert "Use LLVM for all stat-related functionality."
this reverts r297116 because it breaks the unittests and
TestCompDirSymlink. The ModuleCache unit test is trivially fixable, but
the CompDirSymlink failure is a symptom of a deeper problem: llvm's stat
functionality is not a drop-in replacement for lldb's. The former is
based on stat(2) (which does symlink resolution), while the latter is
based on lstat(2) (which does not).

This also reverts subsequent build fixes (r297128, r297120, 297117) and
r297119 (Remove FileSpec dependency on FileSystem) which builds on top
of this.

llvm-svn: 297139
2017-03-07 13:19:15 +00:00
Zachary Turner 990e3cd8e2 Use LLVM for all stat-related functionality.
This deletes LLDB's FileType enumeration and replaces all
users, and all calls to functions that check whether a file
exists etc with corresponding calls to LLVM.

Differential Revision: https://reviews.llvm.org/D30624

llvm-svn: 297116
2017-03-07 03:43:17 +00:00
Zachary Turner 666cc0b291 Move DataBuffer / DataExtractor and friends from Core -> Utility.
llvm-svn: 296943
2017-03-04 01:30:05 +00:00
Zachary Turner 6f9e690199 Move Log from Core -> Utility.
All references to Host and Core have been removed, so this
class can now safely be lowered into Utility.

Differential Revision: https://reviews.llvm.org/D30559

llvm-svn: 296909
2017-03-03 20:56:28 +00:00
Greg Clayton 5d0c114630 FindFunctions now works again with mangled names.
<rdar://problem/28147057> 

llvm-svn: 294990
2017-02-13 21:34:58 +00:00
Zachary Turner bf9a77305f Move classes from Core -> Utility.
This moves the following classes from Core -> Utility.

ConstString
Error
RegularExpression
Stream
StreamString

The goal here is to get lldbUtility into a state where it has
no dependendencies except on itself and LLVM, so it can be the
starting point at which to start untangling LLDB's dependencies.
These are all low level and very widely used classes, and
previously lldbUtility had dependencies up to lldbCore in order
to use these classes.  So moving then down to lldbUtility makes
sense from both the short term and long term perspective in
solving this problem.

Differential Revision: https://reviews.llvm.org/D29427

llvm-svn: 293941
2017-02-02 21:39:50 +00:00
Hafiz Abid Qadeer b10fb96541 Provide option to set pc of the file loaded in memory.
Summary: This commit adds an option to set PC to the entry point of the file loaded using "target module load" command. In D28804, Greg asked me to separate this part under a different option.

Reviewers: clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D28944

llvm-svn: 292989
2017-01-24 23:07:27 +00:00
Hafiz Abid Qadeer 4687db0e09 Provide a substitute to load command of gdb.
For bare-metal targets, lldb was missing a command like 'load' in gdb
which can be used to create executable image on the target. This was
discussed in
http://lists.llvm.org/pipermail/lldb-dev/2016-December/011752.html

This commits adds an option to "target module load" command to provide
that functionality. It does not set the PC to entry address which will
be done separately.

Reviewed in https://reviews.llvm.org/D28804

llvm-svn: 292499
2017-01-19 17:32:50 +00:00
Tamas Berghammer 556b1611cd Improve Type::GetTypeScopeAndBasenameHelper and add unit tests
Previously it failed to handle nested types inside templated classes
making it impossible to look up these types using the fully qualified
name.

Differential revision: https://reviews.llvm.org/D28466

llvm-svn: 291559
2017-01-10 11:13:59 +00:00
Zachary Turner c156427ded Don't allow direct access to StreamString's internal buffer.
This is a large API change that removes the two functions from
StreamString that return a std::string& and a const std::string&,
and instead provide one function which returns a StringRef.

Direct access to the underlying buffer violates the concept of
a "stream" which is intended to provide forward only access,
and makes porting to llvm::raw_ostream more difficult in the
future.

Differential Revision: https://reviews.llvm.org/D26698

llvm-svn: 287152
2016-11-16 21:15:24 +00:00
Pavel Labath 7e2cfbf0b7 Remove TimeValue usage from Core/Module
Summary:
The only interesting part here is that TimePoint and TimeValue have different
natural string representations, which affects "target modules list" output. It
is now "2016-07-09 04:02:21.000000000", whereas previously in was
"Sat Jul  9 04:02:21 2016". I wanted to check if we're OK with that.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D26275

llvm-svn: 286349
2016-11-09 09:59:18 +00:00
Malcolm Parsons 771ef6d4f1 Fix Clang-tidy readability-redundant-string-cstr warnings
Reviewers: zturner, labath

Subscribers: tberghammer, danalbert, lldb-commits
    
Differential Revision: https://reviews.llvm.org/D26233

llvm-svn: 285855
2016-11-02 20:34:10 +00:00
Pavel Labath 1408bf7231 Remove TimeValue usage from FileSpec.h
Summary:
The only usage there was in GetModificationTime(). I also took the opportunity
to move this function from FileSpec to the FileSystem class - since we are
using FileSpecs to also represent remote files for which we cannot (easily)
retrieve modification time, it makes sense to make the decision to get the
modification time more explicit.

The new function returns a llvm::sys::TimePoint<>. To aid the transition
from TimeValue, I have added a constructor to it which enables implicit
conversion from a time_point.

Reviewers: zturner, clayborg

Subscribers: mehdi_amini, tberghammer, danalbert, beanz, mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D25392

llvm-svn: 285702
2016-11-01 16:11:14 +00:00
Zachary Turner a498f0ec93 Change Module::RemapPath to use StringRef.
llvm-svn: 282277
2016-09-23 18:42:38 +00:00
Zachary Turner 95eae4235d Make lldb::Regex use StringRef.
This updates getters and setters to use StringRef instead of
const char *.  I tested the build on Linux, Windows, and OSX
and saw no build or test failures.  I cannot test any BSD
or Android variants, however I expect the required changes
to be minimal or non-existant.

llvm-svn: 282079
2016-09-21 16:01:28 +00:00
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00
Zachary Turner f343968f5d Delete Host/windows/win32.h
It's always hard to remember when to include this file, and
when you do include it it's hard to remember what preprocessor
check it needs to be behind, and then you further have to remember
whether it's windows.h or win32.h which you need to include.

This patch changes the name to PosixApi.h, which is more appropriately
named, and makes it independent of any preprocessor setting.

There's still the issue of people not knowing when to include this,
because there's not a well-defined set of things it exposes other
than "whatever is missing on Windows", but at least this should
make it less painful to fix when problems arise.

This patch depends on LLVM revision r278170.

llvm-svn: 278177
2016-08-09 23:06:08 +00:00
Greg Clayton 6234a5c863 Centralize the way symbol and functions are looked up by making a Module::LookupInfo class that does all of the heavy lifting.
Background: symbols and functions can be looked up by full mangled name and by basename. SymbolFile and ObjectFile are expected to be able to do the lookups based on full mangled name or by basename, so when the user types something that is incomplete, we must be able to look it up efficiently. For example the user types "a::b::c" as a symbol to set a breakpoint on, we will break this down into a 'lookup "c"' and then weed out N matches down to just the ones that match "a::b::c". Previously this was done manaully in many functions by calling Module::PrepareForFunctionNameLookup(...) and then doing the lookup and manually pruning the results down afterward with duplicated code. Now all places use Module::LookupInfo to do the work in one place.

This allowed me to fix the name lookups to look for "func" with eFunctionNameTypeFull as the "name_type_mask", and correctly weed the results:

"func", "func()", "func(int)", "a::func()", "b::func()", and "a::b::func()" down to just "func", "func()", "func(int)". Previously we would have set 6 breakpoints, now we correctly set just 3. This also extends to the expression parser when it looks up names for functions it needs to not get multiple results so we can call the correct function.

<rdar://problem/24599697> 

llvm-svn: 275281
2016-07-13 17:12:24 +00:00
Greg Clayton 4c8e782806 Fix the use of lldb::eSymbolContextVariable.
In Address.cpp, we were asking for the lldb::eSymbolContextVariable to be resolved, yet we weren't using the variable. This code gets called when disassembling and can cause the manual creation of all global variables variables which can take minutes. Removing eSymbolContextVariable allows disassembly to not create these long pauses.

In Module.cpp, if someone only specified the lldb::eSymbolContextVariable flag, we would not look into a module's debug info, now we will.

<rdar://problem/26907449>

llvm-svn: 273307
2016-06-21 20:00:36 +00:00
Saleem Abdulrasool 16ff860469 remove use of Mutex in favour of std::{,recursive_}mutex
This is a pretty straightforward first pass over removing a number of uses of
Mutex in favor of std::mutex or std::recursive_mutex. The problem is that there
are interfaces which take Mutex::Locker & to lock internal locks. This patch
cleans up most of the easy cases. The only non-trivial change is in
CommandObjectTarget.cpp where a Mutex::Locker was split into two.

llvm-svn: 269877
2016-05-18 01:59:10 +00:00
Eugene Zelenko c5dac77ad8 Fix Clang-tidy modernize-use-nullptr warnings in some files in source/Core; other minor fixes.
llvm-svn: 263289
2016-03-11 20:20:38 +00:00
Greg Clayton ae088e52f3 Now that SymbolFileDWARF supports having types in completely separate .pcm file with "-fmodules -gmodules", each SymbolFileDWARF can reference module DWARF info by looking in other DWARF files. Then if you have 1000 .o files that each reference one or more .pcm files in their debug info, a simple Module::FindTypes(...) call can end up searching the same .pcm file over and over and over. Now all internal FindTypes methods in classes (ModuleList, Module, SymbolFile) now take an extra argument:
llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files
    
Each time a SymbolFile::FindTypes() is called, it needs to check the searched_symbol_files list to make sure it hasn't already been asked to find the type and return immediately if it has been checked. This will stop circular dependencies from also crashing LLDB during type queries. 

This has proven to be an issue when debugging large applications on MacOSX that use DWARF in .o files. 

<rdar://problem/24581488>

llvm-svn: 260434
2016-02-10 21:28:13 +00:00
Adrian McCarthy c35b91cee2 Set symbol types for function symbols loaded from PE/COFF
This fixes the regression of several tests on Windows after rL258621.

The root problem is that ObjectFilePECOFF was not setting type information for the symbols, and the new CL rejects symbols without type information, breaking functionality like thread step-over.

The fix sets the type information for functions (and creates a TODO for other types).

Along the way, I fixed some typos and formatting that made the code I was debugging harder to understand.

In the long run, we should consider replacing most of ObjectFilePECOFF with the COFF parsing code from LLVM.

Differential Revision: http://reviews.llvm.org/D16563

llvm-svn: 258758
2016-01-26 00:58:09 +00:00
Mohit K. Bhakkad 0d9dd7df60 [LLDB] Consider only valid symbols while resolving by address
Reviewers: clayborg.
Subscribers: jaydeep, bhushan, sagar, nitesh.jain, lldb-commits.
Differential Revision: http://reviews.llvm.org/D16397

llvm-svn: 258621
2016-01-23 10:36:06 +00:00