Commit Graph

59 Commits

Author SHA1 Message Date
Jonas Devlieghere 8b3af63b89 [NFC] Remove ASCII lines from comments
A lot of comments in LLDB are surrounded by an ASCII line to delimit the
begging and end of the comment.

Its use is not really consistent across the code base, sometimes the
lines are longer, sometimes they are shorter and sometimes they are
omitted. Furthermore, it looks kind of weird with the 80 column limit,
where the comment actually extends past the line, but not by much.
Furthermore, when /// is used for Doxygen comments, it looks
particularly odd. And when // is used, it incorrectly gives the
impression that it's actually a Doxygen comment.

I assume these lines were added to improve distinguishing between
comments and code. However, given that todays editors and IDEs do a
great job at highlighting comments, I think it's worth to drop this for
the sake of consistency. The alternative is fixing all the
inconsistencies, which would create a lot more churn.

Differential revision: https://reviews.llvm.org/D60508

llvm-svn: 358135
2019-04-10 20:48:55 +00:00
Davide Italiano 9a8e777f8c [Python] Unbreak the recently modified tests for python 2.
llvm-svn: 355566
2019-03-06 23:50:36 +00:00
Davide Italiano a658ab9f55 [testsuite] Port crashlog to python 3, second attempt.
llvm-svn: 355562
2019-03-06 22:54:11 +00:00
Davide Italiano 814ad73452 Revert "[testsuite] Port crashlog and dependencies to Python 3."
This revert the commit because it broke the bots. I need to find
a way that works with both versions.

llvm-svn: 355364
2019-03-05 01:34:47 +00:00
Davide Italiano fc188448fa [testsuite] Port crashlog and dependencies to Python 3.
Fixes three tests in the testsuite.

llvm-svn: 355359
2019-03-05 00:53:38 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Davide Italiano e1f760d5de Fix lldb's macosx/heap.py cstr command.
<rdar://problem/44432167>

llvm-svn: 349372
2018-12-17 18:21:51 +00:00
Adrian Prantl 4e8be2c98e Fix/unify the spelling of Objective-C.
llvm-svn: 334614
2018-06-13 16:21:24 +00:00
Jim Ingham f539174f9a Work around a bug in the C++ expression parser.
When the expression parser does name resolution for local
variables in C++ closures it doesn't give the local name
priority over other global symbols of the same name.  heap.py
uses "info" which is a fairly common name, and so the commands
in it fail.  This is a workaround, just use lldb_info not info.

<rdar://problem/34026140>

llvm-svn: 314959
2017-10-05 01:00:29 +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
Bruce Mitchener e171da5cb7 Fix typos.
Summary: Fix a bunch of typos.

Reviewers: clayborg

Subscribers: lldb-commits

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

llvm-svn: 242856
2015-07-22 00:16:02 +00:00
Bruce Mitchener 58ef391f3e Fix a variety of typos.
No functional change.

llvm-svn: 239995
2015-06-18 05:27:05 +00:00
Greg Clayton 424a5dbc73 Added a new API to SBFrame:
lldb::addr_t SBFrame::GetCFA();

This gets the CFA (call frame address) of the frame so it allows us to take an address that is on the stack and figure out which thread it comes from.

Also modified the heap.py module to be able to find out which variable in a frame's stack frame contains an address. This way when ptr_refs finds a match on the stack, it get then report which variable contains the pointer.

llvm-svn: 238393
2015-05-28 03:27:22 +00:00
Greg Clayton 4e1042e1bf Allow expresions to have unique expression prefixes:
expr_options = lldb.SBExpressionOptions()
expr_options.SetPrefix('''
struct Foo {
   int a;
   int b;
   int c;
}
'''
expr_result = frame.EvaluateExpression ("Foo foo = { 1, 2, 3}; foo", expr_options)

This fixed a current issue with ptr_refs, cstr_refs and malloc_info so that they can work. If expressions define their own types and then return expression results that use those types, those types get copied into the target's AST context so they persist and the expression results can be still printed and used in future expressions. Code was added to the expression parser to copy the context in which types are defined if they are used as the expression results. So in the case of types defined by expressions, they get defined in a lldb_expr function and that function and _all_ of its statements get copied. Many types of statements are not supported in this copy (array subscript, lambdas, etc) so this causes expressions to fail as they can't copy the result types. To work around this issue I have added code that allows expressions to specify an expression specific prefix. Then when you evaluate the expression you can pass the "expr_options" and have types that can be correctly copied out into the target. I added this as a way to work around an issue, but I also think it is nice to be allowed to specify an expression prefix that can be reused by many expressions, so this feature is very useful.

<rdar://problem/21130675>

llvm-svn: 238365
2015-05-27 22:32:39 +00:00
Greg Clayton 6e7ab02cff Specify ObjC++ when running heap commands in case we are stopped in a frame with another language.
This ensures the expression gets runs with the correct language.

<rdar://problem/18816647>

llvm-svn: 226041
2015-01-14 21:37:19 +00:00
Greg Clayton 966c6f6ddf Fixed issues with ptr_refs:
- If there is only 1 frame ptr_refs now works (fixed issue with stack detection)
- Fixed test for result now that it isn't a pointer anymore

llvm-svn: 198712
2014-01-07 21:55:00 +00:00
Sean Callanan f09a3dbf92 Fixed a crash in objc_refs caused by improper
resolution of class_getSuperclass.

<rdar://problem/14662686>

llvm-svn: 188240
2013-08-13 00:53:33 +00:00
Greg Clayton 927fa01e8c <rdar://problem/13416800>
ptr_refs command frequently doesn't work when run in large applicaton. This was due to the default timeout of 500ms. The timeouts have now been increased and all expression evaluations have been modified.

llvm-svn: 178628
2013-04-03 07:25:30 +00:00
Enrico Granata cd4218f5c1 Using __package__ and __name__ seems redundant - __name__ should always contain the fully qualified module name
llvm-svn: 175856
2013-02-22 02:21:10 +00:00
Greg Clayton 13fbb99107 Allow the target to give out the size of the red zone for given ABIs.
A bit of cleanup in the heap module. 

llvm-svn: 174129
2013-02-01 00:47:49 +00:00
Greg Clayton e7fc9ccf2e Added the ability to search segments for data. Currently __TEXT, __LINKEDIT and __PAGEZERO are excluded.
Added many more cleanups to the output.

llvm-svn: 174045
2013-01-31 06:38:09 +00:00
Greg Clayton 85e62eca66 expressions + C++11 lambdas == cooooool!!!
C++11 lambdas that don't capture anything can be used as static callback functions!

Heavily modified this python module to be able to not require a dylib in order to traverse the heap allocations.

Re-implemented the ptr_refs, objc_refs, malloc_info and cstr_refs to use complex expressions that use lambdas to do all static callback function work.

llvm-svn: 173989
2013-01-30 22:57:34 +00:00
Greg Clayton 746a28bb55 <rdar://problem/13011717>
Fixed a compilation error that occurs when "lldb.macosx.heap" is imported and "ptr_refs" is used.

llvm-svn: 172876
2013-01-19 00:35:24 +00:00
Greg Clayton 215dced2f6 <rdar://problem/13011717>
Fixed a compilation error where NULL was being assigned to a uint.

llvm-svn: 172566
2013-01-15 22:13:13 +00:00
Greg Clayton ae23ed336b Checking in fixes that I used to track down a leaking module. The heap module can now search the vm regions with the --vm-regions options to any of the heap functions. This is currently slow and often will time out when run on a large program since our user expression timeout is set to 500000 usec. We need to add an API to LLDB where we can specify the timeout for an expression.
llvm-svn: 165437
2012-10-08 22:39:38 +00:00
Greg Clayton a3606adf90 Don't allow an extra entry to slip into the heap results and also add a better output format
llvm-svn: 163675
2012-09-12 02:02:32 +00:00
Greg Clayton 4b963415c2 Added "heap" command to get info on all allocations on the heap. Currently only objective C objects are supported since they are easy to detect.
llvm-svn: 163637
2012-09-11 18:10:27 +00:00
Greg Clayton bded106120 Playing around with "objc_refs" over the weekend and improved it to work on a large ObjC program without running into expression timeouts. Now we get a full list of ObjC classes using a runtime function and then qsort the result. Also added code that can count all instances of each ObjC on the heap and also the total byte sizes for the object allocations.
llvm-svn: 163520
2012-09-10 17:22:45 +00:00
Greg Clayton 88344b7133 Don't allocate memory when enumerting stack. We now have fixed size buffers to avoid this issue.
llvm-svn: 163441
2012-09-08 01:16:16 +00:00
Greg Clayton 7143f00ae9 Improved "objc_refs" a bit to be able to find all instances of a class'
superclasses on top of finding the exact class. The current attempt is still
too slow, but it lays the groundwork.

llvm-svn: 163135
2012-09-04 14:09:21 +00:00
Greg Clayton c373ca5c74 <rdar://problem/12069589>
Fixed an issue where not all text would always be seen when running any of the functions in heap.py in Xcode. Now we put the text directly into the command result object and skip STDIO since we have issues with STDIO right now in python scripts.

Also fixed an issue with the "--stack-history" option where MallocStackLoggingNoCompact was assumed to have to be enabled... It doesn't, just MallocStackLogging.

llvm-svn: 163042
2012-09-01 00:34:35 +00:00
Greg Clayton 774ebdfcd1 Added a new "objc_refs" command that will track down all allocations on the heap that have the "isa" for the objective C class at offset zero. This will need to be improved to deal with KVO classes, but it is a start. It also disallows looking up a pointer value of zero since that would return way too many matches.
llvm-svn: 161724
2012-08-11 02:26:26 +00:00
Greg Clayton e04cfd2180 Added the ability to search through sections for pointer data.
llvm-svn: 160083
2012-07-11 22:13:18 +00:00
Greg Clayton 9407302d37 Make const result value objects able to return dynamic types.
Modified the heap.py to be able to correctly indentify the exact ivar for the "ptr_refs" command no matter how deep the ivar is in a class hierarchy. Also fixed the ability for the heap command to symbolicate the stack backtrace when MallocStackLogging is set in the environment and the "--stack" option was specified.

llvm-svn: 159883
2012-07-07 01:22:45 +00:00
Greg Clayton 89d4f338a7 Check the return status of the make command.
llvm-svn: 159284
2012-06-27 19:57:59 +00:00
Greg Clayton 5b889eec4a Remove dependency on internal header file.
llvm-svn: 159283
2012-06-27 19:57:13 +00:00
Greg Clayton 0021bd2fe3 Remove comments and an extra print statement.
llvm-svn: 156651
2012-05-11 21:57:50 +00:00
Greg Clayton 341039faca More fixes to "malloc_history".
llvm-svn: 156605
2012-05-11 02:42:36 +00:00
Greg Clayton 7200ed1b94 "--stack-history" now works if you have MallocStackLogggingNoCompact defined in your app's environment.
llvm-svn: 156588
2012-05-10 23:37:52 +00:00
Greg Clayton 370f5fd20a Fixed a build error.
llvm-svn: 156586
2012-05-10 23:20:50 +00:00
Greg Clayton d9fc53509e Added the ability to get the stack history for a malloc block. This is a work in progress. Checking this in so I can work on it some more.
llvm-svn: 156584
2012-05-10 23:17:28 +00:00
Greg Clayton 4f76fef267 Make the libheap.dylib build into a consistent temp directory so it can be reused between lldb invocations. Also add the module name into the directory path that is used to store the target triple specific build of libheap.dylib.
Also added code that will rebuild libheap.dylib if heap_find.cpp is newer that libheap.dylib.

llvm-svn: 155590
2012-04-25 21:23:07 +00:00
Greg Clayton d712ef0fd7 Remove the "-x" from the finish-swig-Python-LLDB.sh shell options so it doesn't print out all of the commands when executing the shell script.
Cleaned up the lldb.utils.symbolication, lldb.macosx.heap and lldb.macosx.crashlog. The lldb.macosx.heap can now build a dylib for the current triple into a temp directory and use it from there.

llvm-svn: 155577
2012-04-25 18:40:20 +00:00
Greg Clayton ed3eee6e55 Now that we have an LLDB package, make the "lldb.macosx.crashlog" module work with all of the new module paths.
llvm-svn: 155528
2012-04-25 01:49:50 +00:00
Greg Clayton 938aa00795 Remove unneeded files.
llvm-svn: 155524
2012-04-25 01:25:22 +00:00
Greg Clayton 81e9ebf798 Move the source and Makefile into a directory so it will be easier to install.
llvm-svn: 155523
2012-04-25 01:25:04 +00:00
Greg Clayton b1ba1bb194 Make the Makefile stand alone.
llvm-svn: 155520
2012-04-25 01:19:20 +00:00
Greg Clayton b403a15ded Added code to automatically load the libheap.dylib when ptr_refs, cstr_refs or malloc_info are called. If MallocStackLogging is enabled, then you can now use --stack to dump the backtrace of the code that allocated each malloc block.
llvm-svn: 155262
2012-04-21 00:11:26 +00:00
Greg Clayton d84bb48582 Added a --memory option to allow dumping the matching malloc block memory with a default format that makes sense, or that format can be overridden with the --format option.
llvm-svn: 154671
2012-04-13 16:24:09 +00:00
Greg Clayton 1bcb26c672 Fixed some expression issues after switching to void * args.
llvm-svn: 154615
2012-04-12 21:06:22 +00:00