Commit Graph

37 Commits

Author SHA1 Message Date
Jim Ingham 5e09c8c32c Add the ability to tag one or more breakpoints with a name. These
names can then be used in place of breakpoint id's or breakpoint id 
ranges in all the commands that operate on breakpoints.

<rdar://problem/10103959>

llvm-svn: 224392
2014-12-16 23:40:14 +00:00
Jim Ingham e029fa5781 If a breakpoint gets deleted, any SBBreakpoints representing that
breakpoint should return false from IsValid.

llvm-svn: 212206
2014-07-02 18:44:43 +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
Jim Ingham d80102e420 Add the ability to set python breakpoint commands from the SBBreakpoint & SBBreakpointLocation API's.
You can either provide the function name, or function body text.
Also propagate the compilation error up from where it is checked so we can report compilation errors.

<rdar://problem/9898371>

llvm-svn: 205380
2014-04-02 01:04:55 +00:00
Greg Clayton d5944cd118 For logical backtrace work, lldb needs to track Module unloads etc & symoblicate an address based on a point in time
<rdar://problem/15314403> 

This patch adds a new lldb_private::SectionLoadHistory class that tracks what shared libraries were loaded given a process stop ID. This allows us to keep a history of the sections that were loaded for a time T. Many items in history objects will rely upon the process stop ID in the future.

llvm-svn: 196557
2013-12-06 01:12:00 +00:00
Enrico Granata c3387333ce <rdar://problem/11742979>
SWIG is smart enough to recognize that C++ operators == and != mean __eq__ and __ne__ in Python and do the appropriate translation
But it is not smart enough to recognize that mySBObject == None should return False instead of erroring out
The %pythoncode blocks are meant to provide those extra smarts (and they play some SWIG&Python magic to find the right function to call behind the scenes with no risk of typos :-)
Lastly, SBBreakpoint provides an == but never provided a != operator - common courtesy is to provide both

llvm-svn: 180987
2013-05-03 01:29:27 +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
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 ca36cd16e4 Add one-shot breakpoints (-o option to "break set") and a tbreak alias for our gdb friends.
llvm-svn: 165328
2012-10-05 19:16:31 +00:00
Jim Ingham 11c8108d57 Add an API to figure out whether a breakpoint is internal or not.
llvm-svn: 164648
2012-09-25 23:55:19 +00:00
Greg Clayton 43e0af06b4 Stop using the "%z" size_t modifier and cast all size_t values to uint64_t. Some platforms don't support this modification.
llvm-svn: 164148
2012-09-18 18:04:04 +00:00
Jim Ingham f94e179172 Add explicit casts to bool in "shared pointer is valid" constructs that return bool.
llvm-svn: 161719
2012-08-11 00:35:26 +00:00
Greg Clayton e72dfb321c <rdar://problem/10103468>
I started work on being able to add symbol files after a debug session
had started with a new "target symfile add" command and quickly ran into
problems with stale Address objects in breakpoint locations that had 
lldb_private::Section pointers into modules that had been removed or 
replaced. This also let to grabbing stale modules from those sections. 
So I needed to thread harded the Address, Section and related objects.

To do this I modified the ModuleChild class to now require a ModuleSP
on initialization so that a weak reference can created. I also changed
all places that were handing out "Section *" to have them hand out SectionSP.
All ObjectFile, SymbolFile and SymbolVendors were inheriting from ModuleChild
so all of the find plug-in, static creation function and constructors now
require ModuleSP references instead of Module *. 

Address objects now have weak references to their sections which can
safely go stale when a module gets destructed. 

This checkin doesn't complete the "target symfile add" command, but it
does get us a lot clioser to being able to do such things without a high
risk of crashing or memory corruption.

llvm-svn: 151336
2012-02-24 01:59:29 +00:00
Greg Clayton 1ac04c3088 Thread hardening part 3. Now lldb_private::Thread objects have std::weak_ptr
objects for the backlink to the lldb_private::Process. The issues we were
running into before was someone was holding onto a shared pointer to a 
lldb_private::Thread for too long, and the lldb_private::Process parent object
would get destroyed and the lldb_private::Thread had a "Process &m_process"
member which would just treat whatever memory that used to be a Process as a
valid Process. This was mostly happening for lldb_private::StackFrame objects
that had a member like "Thread &m_thread". So this completes the internal
strong/weak changes.

Documented the ExecutionContext and ExecutionContextRef classes so that our
LLDB developers can understand when and where to use ExecutionContext and 
ExecutionContextRef objects.

llvm-svn: 151009
2012-02-21 00:09:25 +00:00
Jim Ingham e6bc6cb96f Send Breakpoint Changed events for all the relevant changes to breakpoints.
Also, provide and use accessors for the thread options on breakpoints so we
can control sending the appropriate events.

llvm-svn: 150057
2012-02-08 05:23:15 +00:00
Greg Clayton e1cd1be6d6 Switching back to using std::tr1::shared_ptr. We originally switched away
due to RTTI worries since llvm and clang don't use RTTI, but I was able to 
switch back with no issues as far as I can tell. Once the RTTI issue wasn't
an issue, we were looking for a way to properly track weak pointers to objects
to solve some of the threading issues we have been running into which naturally
led us back to std::tr1::weak_ptr. We also wanted the ability to make a shared 
pointer from just a pointer, which is also easily solved using the 
std::tr1::enable_shared_from_this class. 

The main reason for this move back is so we can start properly having weak
references to objects. Currently a lldb_private::Thread class has a refrence
to its parent lldb_private::Process. This doesn't work well when we now hand
out a SBThread object that contains a shared pointer to a lldb_private::Thread
as this SBThread can be held onto by external clients and if they end up
using one of these objects we can easily crash.

So the next task is to start adopting std::tr1::weak_ptr where ever it makes
sense which we can do with lldb_private::Debugger, lldb_private::Target,
lldb_private::Process, lldb_private::Thread, lldb_private::StackFrame, and
many more objects now that they are no longer using intrusive ref counted
pointer objects (you can't do std::tr1::weak_ptr functionality with intrusive
pointers).

llvm-svn: 149207
2012-01-29 20:56:30 +00:00
Greg Clayton 61e7a58c0c Process IDs (lldb::pid_t) and thread IDs (lldb::tid_t) are now 64 bit. This
will allow us to represent a process/thread ID using a pointer for the OS
plug-ins where they might want to represent the process or thread ID using
the address of the process or thread structure.

llvm-svn: 145644
2011-12-01 23:28:38 +00:00
Greg Clayton c14ee32db5 Converted the lldb_private::Process over to use the intrusive
shared pointers.

Changed the ExecutionContext over to use shared pointers for
the target, process, thread and frame since these objects can
easily go away at any time and any object that was holding onto
an ExecutionContext was running the risk of using a bad object.

Now that the shared pointers for target, process, thread and
frame are just a single pointer (they all use the instrusive
shared pointers) the execution context is much safer and still
the same size. 

Made the shared pointers in the the ExecutionContext class protected
and made accessors for all of the various ways to get at the pointers,
references, and shared pointers.

llvm-svn: 140298
2011-09-22 04:58:26 +00:00
Greg Clayton af67cecd47 The LLDB API (lldb::SB*) is now thread safe!
llvm-svn: 122262
2010-12-20 20:49:23 +00:00
Johnny Chen 763d1a17a1 Fix typos in SBBreakpoint::GetThreadIndex()/GetThreadName(), and test sequences
for the two API calls.

llvm-svn: 121898
2010-12-15 21:39:37 +00:00
Greg Clayton bdf4c6ac4f Fixed an error where the thread index was being returned as zero in "uint32_t SBBreakpoint::GetThreadIndex() const" even when it isn't specified. It should be UINT32_MAX to indicate there is no thread index set for the breakpoint (the breakpoint isn't thread specific). Also fixed the ThreadSpec.cpp to use UINT32_MAX instead of -1. Fixed the logging Printf statement in "uint32_t SBBreakpoint::GetThreadIndex() const" to not print the address of the "index" function from <string.h>!
llvm-svn: 121896
2010-12-15 20:50:06 +00:00
Greg Clayton ac2eb9b1ec Added the ability for SBTarget to resolve load addresses (convert lldb::addr_t values into resolved SBAddress objects). These SBAddress objects can then be used to resolve a symbol context using "lldb::SBSymbolContext ResolveSymbolContextForAddress (const lldb::SBAddress& addr, uint32_t resolve_scope);".
llvm-svn: 121638
2010-12-12 19:25:26 +00:00
Greg Clayton 2d4edfbc6a Modified all logging calls to hand out shared pointers to make sure we
don't crash if we disable logging when some code already has a copy of the
logger. Prior to this fix, logs were handed out as pointers and if they were
held onto while a log got disabled, then it could cause a crash. Now all logs
are handed out as shared pointers so this problem shouldn't happen anymore.
We are also using our new shared pointers that put the shared pointer count
and the object into the same allocation for a tad better performance.

llvm-svn: 118319
2010-11-06 01:53:30 +00:00
Greg Clayton 4838131baf Improved API logging.
llvm-svn: 117772
2010-10-30 04:51:46 +00:00
Caroline Tice 750cd1755d Clean up the API logging code:
- Try to reduce logging to one line per function call instead of tw
      - Put all arguments & their values into log for calls
      - Add 'this' parameter information to function call logging, making it show the appropriate
        internal pointer (this.obj, this.sp, this.ap...)
      - Clean up some return values
      - Remove logging of constructors that construct empty objects
      - Change '==>' to '=>'  for showing result values...
      - Fix various minor bugs
      - Add some protected 'get' functions to help getting the internal pointers for the 'this' arguments...      

llvm-svn: 117417
2010-10-26 23:49:36 +00:00