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* [NFC] Remove ASCII lines from commentsJonas Devlieghere2019-04-101-4/+0
| | | | | | | | | | | | | | | | | | | | | | | 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
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | 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
* *** This commit represents a complete reformatting of the LLDB source codeKate Stone2016-09-061-61/+40
| | | | | | | | | | | | | | | | | | | | | | | *** 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
* Roll back the changes I made in r193907 which created a new FrameJason Molenda2013-11-041-1/+1
| | | | | | | | | | 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
* Add a new base class, Frame. It is a pure virtual function whichJason Molenda2013-11-021-1/+1
| | | | | | | | | | | | | | | | | | | | | 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
* Changed the formerly pure virtual function:Greg Clayton2013-05-091-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | namespace lldb_private { class Thread { virtual lldb::StopInfoSP GetPrivateStopReason() = 0; }; } To not be virtual. The lldb_private::Thread now handles the correct caching and will call a new pure virtual function: namespace lldb_private { class Thread { virtual bool CalculateStopInfo() = 0; } } This function must be overridden by thead lldb_private::Thread subclass and the only thing it needs to do is to set the Thread::StopInfo() with the current stop reason and return true, or return false if there is no stop reason. The lldb_private::Thread class will take care of calling this function only when it is required. This allows lldb_private::Thread subclasses to be a bit simpler and not all need to duplicate the cache and invalidation settings. Also renamed: lldb::StopInfoSP lldb_private::Thread::GetPrivateStopReason(); To: lldb::StopInfoSP lldb_private::Thread::GetPrivateStopInfo(); Also cleaned up a case where the ThreadPlanStepOverBreakpoint might not re-set its breakpoint if the thread disappears (which was happening due to a bug when using the OperatingSystem plug-ins with memory threads and real threads). llvm-svn: 181501
* <rdar://problem/13700260>Greg Clayton2013-05-011-6/+0
| | | | | | | | | | | | | | <rdar://problem/13723772> Modified the lldb_private::Thread to work much better with the OperatingSystem plug-ins. Operating system plug-ins can now return have a "core" key/value pair in each thread dictionary for the OperatingSystemPython plug-ins which allows the core threads to be contained with memory threads. It also allows these memory threads to be stepped, resumed, and controlled just as if they were the actual backing threads themselves. A few things are introduced: - lldb_private::Thread now has a GetProtocolID() method which returns the thread protocol ID for a given thread. The protocol ID (Thread::GetProtocolID()) is usually the same as the thread id (Thread::GetID()), but it can differ when a memory thread has its own id, but is backed by an actual API thread. - Cleaned up the Thread::WillResume() code to do the mandatory parts in Thread::ShouldResume(), and let the thread subclasses override the Thread::WillResume() which is now just a notification. - Cleaned up ClearStackFrames() implementations so that fewer thread subclasses needed to override them - Changed the POSIXThread class a bit since it overrode Thread::WillResume(). It is doing the wrong thing by calling "Thread::SetResumeState()" on its own, this shouldn't be done by thread subclasses, but the current code might rely on it so I left it in with a TODO comment with an explanation. llvm-svn: 180886
* Change the Thread constructor over to take a Process& rather than a ↵Jim Ingham2012-10-101-1/+1
| | | | | | | | | | | | | ProcessSP. We can't create Threads with a NULL ProcessSP, so it makes no sense to use the SP. Then make the Thread a Broadcaster, and get it to broadcast when the selected frame is changed (but only from the Command Line) and when Thread::ReturnFromFrame changes the stack. Made the Driver use this notification to print the new thread status rather than doing it in the command. Fixed a few places where people were setting their broadcaster class by hand rather than using the static broadcaster class call. <rdar://problem/12383087> llvm-svn: 165640
* <rdar://problem/9959501>Greg Clayton2012-09-251-0/+4
| | | | | | More KDP debugging process. We can not set breakpoints, hit them, resume, step and detach while running. llvm-svn: 164584
* Thread hardening part 3. Now lldb_private::Thread objects have std::weak_ptrGreg Clayton2012-02-211-7/+1
| | | | | | | | | | | | | | | | | 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
* Added a new plug-in type: lldb_private::OperatingSystem. The operating system Greg Clayton2011-08-221-6/+0
| | | | | | | | | | | | | | | | | | | | plug-ins are add on plug-ins for the lldb_private::Process class that can add thread contexts that are read from memory. It is common in kernels to have a lot of threads that are not currently executing on any cores (JTAG debugging also follows this sort of thing) and are context switched out whose state is stored in memory data structures. Clients can now subclass the OperatingSystem plug-ins and then make sure their Create functions correcltly only enable themselves when the right binary/target triple are being debugged. The operating system plug-ins get a chance to attach themselves to processes just after launching or attaching and are given a lldb_private::Process object pointer which can be inspected to see if the main executable, target triple, or any shared libraries match a case where the OS plug-in should be used. Currently the OS plug-ins can create new threads, define the register contexts for these threads (which can all be different if desired), and populate and manage the thread info (stop reason, registers in the register context) as the debug session goes on. llvm-svn: 138228
* Modified the LocateMacOSXFilesUsingDebugSymbols(...) function to locateGreg Clayton2011-07-191-0/+115
an executable file if it is right next to a dSYM file that is found using DebugSymbols. The code also looks into a bundle if the dSYM file is right next to a bundle. Modified the MacOSX kernel dynamic loader plug-in to correctly set the load address for kext sections. This is a tad tricky because of how LLDB chooses to treat mach-o segments with no name. Also modified the loader to properly handle the older version 1 kext summary info. Fixed a crasher in the Mach-o object file parser when it is trying to set the section size correctly for dSYM sections. Added packet dumpers to the CommunicationKDP class. We now also properly detect address byte sizes based on the cpu type and subtype that is provided. Added a read memory and read register support to CommunicationKDP. Added a ThreadKDP class that now uses subclasses of the RegisterContextDarwin_XXX for arm, i386 and x86_64. Fixed some register numbering issues in the RegisterContextDarwin_arm class and added ARM GDB numbers to the ARM_GCC_Registers.h file. Change the RegisterContextMach_XXX classes over to subclassing their RegisterContextDarwin_XXX counterparts so we can share the mach register contexts between the user and kernel plug-ins. llvm-svn: 135466
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