Commit Graph

104 Commits

Author SHA1 Message Date
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
Chaoren Lin 0efb51a072 Fix SBFrame::FindValue for when only global variables exist.
Summary:
sc.block->AppendVariables(...) returns 0 if there are no arguments or local
variables, but we still need to check for global variables.

Test Plan:
```
$ cat test.cpp
int i;
int main() {
}
$ lldb test -o 'b main' -o r
(lldb) script
>>> print lldb.frame.FindValue('i', lldb.eValueTypeVariableGlobal)
(int) i = 0 # as opposed to "No value"
```

Reviewers: jingham, ovyalov, vharron, clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D8464

llvm-svn: 232767
2015-03-19 22:00:13 +00:00
Zachary Turner af0f45f1c9 Don't #include ClangPersistentVariables.h from Process.h
Nothing from this header file was even being referenced in
Process.h anyway, so it was a completely unnecessary include.

llvm-svn: 231131
2015-03-03 21:05:17 +00:00
Zachary Turner 51f96eeb24 Revert "Revert "I had recently added a new SBFrame::GetVariables() overload with yet another bool argument""
Reverting this commit led to other failures which I did not see at
first.  This turned out to be an easy problem to fix, so I added
SBVariablesOptions.cpp to the CMakeLists.txt.  In the future please
try to make sure new files are added to CMake.

llvm-svn: 229516
2015-02-17 17:55:50 +00:00
Zachary Turner b3b8922cad Revert "I had recently added a new SBFrame::GetVariables() overload with yet another bool argument"
This reverts commit r228975.  It was causing link errors
on the Windows bots, since last Thursday.

http://lab.llvm.org:8011/builders/lldb-x86-win7-msvc/builds/725

Conflicts:
	lldb.xcodeproj/project.pbxproj

llvm-svn: 229514
2015-02-17 17:42:05 +00:00
Enrico Granata e0d951db44 I had recently added a new SBFrame::GetVariables() overload with yet another bool argument
We talked about it internally - and came to the conclusion that it's time to have an options class

This commit adds an SBVariablesOptions class and goes through all the required dance

llvm-svn: 228975
2015-02-12 23:09:17 +00:00
Enrico Granata 560558eb7c Introduce the notion of "runtime support values"
A runtime support value is a ValueObject whose only purpose is to support some language runtime's operation, but it does not directly provide any user-visible benefit
As such, unless the user is working on the runtime support, it is mostly safe for them not to see such a value when debugging

It is a language runtime's job to check whether a ValueObject is a support value, and that - in conjunction with a target setting - is used by frame variable and target variable
SBFrame::GetVariables gets a new overload with yet another flag to dictate whether to return those support values to the caller - that which defaults to the setting's value

rdar://problem/15539930

llvm-svn: 228791
2015-02-11 02:35:39 +00:00
Jim Ingham 8646d3c164 Rename eExecution*** to eExpression*** to be consistent with the result type.
llvm-svn: 207945
2014-05-05 02:47:44 +00:00
Jim Ingham 1624a2d3c8 Make the Expression Execution result enum available to the SB API layer.
Add a callback that will allow an expression to be cancelled between the
expression evaluation stages (for the ClangUserExpressions.)

<rdar://problem/16790467>, <rdar://problem/16573440>

llvm-svn: 207944
2014-05-05 02:26:40 +00:00
Saleem Abdulrasool 324a103619 sweep up -Wformat warnings from gcc
This is a purely mechanical change explicitly casting any parameters for printf
style conversion.  This cleans up the warnings emitted by gcc 4.8 on Linux.

llvm-svn: 205607
2014-04-04 04:06:10 +00:00
Enrico Granata 8a2a0dfba5 Restore the ability of SBFrame::FindValue() to look for file global variables
This should clean up the new test failures caused by r201614

llvm-svn: 201710
2014-02-19 19:35:13 +00:00
Enrico Granata 08a04327a9 <rdar://problem/15960553>
Fix a bug where calling SBFrame::FindValue() would cause a copy of all variables in the block to be inserted in the frame's variable list, regardless of whether those same variables were there or not - which means one could end up with a frame with lots of duplicate copies of the same variables

llvm-svn: 201614
2014-02-18 23:48:11 +00:00
Greg Clayton fb6621ef4b Add a setting to allow users to enable expressions that crash LLDB to show up in crash logs.
<rdar://problem/11549320> 

llvm-svn: 196613
2013-12-06 21:59:52 +00:00
Jason Molenda b57e4a1bc6 Roll back the changes I made in r193907 which created a new Frame
pure virtual base class and made StackFrame a subclass of that.  As
I started to build on top of that arrangement today, I found that it
wasn't working out like I intended.  Instead I'll try sticking with
the single StackFrame class -- there's too much code duplication to
make a more complicated class hierarchy sensible I think.

llvm-svn: 193983
2013-11-04 09:33:30 +00:00
Jason Molenda f23bf7432c Add a new base class, Frame. It is a pure virtual function which
defines a protocol that all subclasses will implement.  StackFrame
is currently the only subclass and the methods that Frame vends are
nearly identical to StackFrame's old methods.

Update all callers to use Frame*/Frame& instead of pointers to
StackFrames.

This is almost entirely a mechanical change that touches a lot of
the code base so I'm committing it alone.  No new functionality is
added with this patch, no new subclasses of Frame exist yet.

I'll probably need to tweak some of the separation, possibly moving
some of StackFrame's methods up in to Frame, but this is a good
starting point.

<rdar://problem/15314068>

llvm-svn: 193907
2013-11-02 02:23:02 +00:00
Jason Molenda 5d35384292 Fix the logging messages for SBFrame::FindRegister().
llvm-svn: 187264
2013-07-26 22:52:30 +00:00
Jason Molenda ad9a53c510 Add an SBFrame::FindRegister() method to make it a little
easier to retrieve a register value.

llvm-svn: 187184
2013-07-26 02:08:48 +00:00
Jim Ingham 5c42d8a87c Fixed a few obvious errors pointed out by the static analyzer.
llvm-svn: 181911
2013-05-15 18:27:08 +00:00
Greg Clayton 5160ce5c72 <rdar://problem/13521159>
LLDB is crashing when logging is enabled from lldb-perf-clang. This has to do with the global destructor chain as the process and its threads are being torn down.

All logging channels now make one and only one instance that is kept in a global pointer which is never freed. This guarantees that logging can correctly continue as the process tears itself down.

llvm-svn: 178191
2013-03-27 23:08:40 +00:00
Enrico Granata 08ec0b6117 Renaming SBValueList::get() to
opaque_ptr since it returns a void* instead of an usable object.

llvm-svn: 174673
2013-02-07 22:57:46 +00:00
Enrico Granata d96f0682e5 Correct logging for function calls that return SBValueList
llvm-svn: 174670
2013-02-07 22:22:27 +00:00
Enrico Granata 85425d77b8 <rdar://problem/13107151>
SBValueList was backed by a ValueObjectList. This caused us to lose track of the additional metadata in the ValueImpl that backs SBValue.
This checkin fixes that by backing SBValueList with ValueListImpl (that essentially wraps a vector<SBValue>).

llvm-svn: 174638
2013-02-07 18:23:56 +00:00
Daniel Malea d01b2953fa Resolve printf formatting warnings on Linux:
- use macros from inttypes.h for format strings instead of OS-specific types

Patch from Matt Kopec!

llvm-svn: 168945
2012-11-29 21:49:15 +00:00
Jim Ingham 7730b9a47a Tighten up how we acquire the underlying frame in the SBFrame methods. We were getting
the frame and then getting the run lock.  Which means that our frame could have gotten
invalidated by stopping between the time we got the frame and assured the the target was
stopped.  Now we get the run lock first, and THEN resolve the underlying frame object.

<rdar://problem/12621607>

llvm-svn: 168838
2012-11-29 00:26:19 +00:00
Enrico Granata e3e91517ff <rdar://problem/12437442>
Given our implementation of ValueObjects we could have a scenario where a ValueObject has a dynamic type of Foo* at one point, and then its dynamic type changes to Bar*
If Bar* has synthetic children enabled, by the time we figure that out, our public API is already vending SBValues wrapping a DynamicVO, instead of a SyntheticVO and there was
no trivial way for us to change the SP inside an SBValue on the fly
This checkin reimplements SBValue in terms of a wrapper, ValueImpl, that allows this substitutions on-the-fly by overriding GetSP() to do The Right Thing (TM)
As an additional bonus, GetNonSyntheticValue() now works, and we can get rid of the ForceDisableSyntheticChildren idiom in ScriptInterpreterPython
Lastly, this checkin makes sure the synthetic VOs get the correct m_value and m_data from their parents (prevented summaries from working in some cases)

llvm-svn: 166426
2012-10-22 18:18:36 +00:00