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* Implemented a major overhaul of the way variables are handledSean Callanan2011-01-131-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | by LLDB. Instead of being materialized into the input structure passed to the expression, variables are left in place and pointers to them are materialzied into the structure. Variables not resident in memory (notably, registers) get temporary memory regions allocated for them. Persistent variables are the most complex part of this, because they are made in various ways and there are different expectations about their lifetime. Persistent variables now have flags indicating their status and what the expectations for longevity are. They can be marked as residing in target memory permanently -- this is the default for result variables from expressions entered on the command line and for explicitly declared persistent variables (but more on that below). Other result variables have their memory freed. Some major improvements resulting from this include being able to properly take the address of variables, better and cleaner support for functions that return references, and cleaner C++ support in general. One problem that remains is the problem of explicitly declared persistent variables; I have not yet implemented the code that makes references to them into indirect references, so currently materialization and dematerialization of these variables is broken. llvm-svn: 123371
* Log diagnostic when setting software breakpoints only on failure.Stephen Wilson2011-01-121-2/+3
| | | | | | | | | | Previously we would be posting a "FAILED" message to the log channel even when the operation succeeded. Also, take this opportunity to add braces thus eliminating an "ambiguous else" compiler warning. llvm-svn: 123306
* Put more smarts into the RegisterContext base class. Now the base class hasGreg Clayton2011-01-091-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a method: void RegisterContext::InvalidateIfNeeded (bool force); Each time this function is called, when "force" is false, it will only call the pure virtual "virtual void RegisterContext::InvalideAllRegisters()" if the register context's stop ID doesn't match that of the process. When the stop ID doesn't match, or "force" is true, the base class will clear its cached registers and the RegisterContext will update its stop ID to match that of the process. This helps make it easier to correctly flush the register context (possibly from multiple locations depending on when and where new registers are availabe) without inadvertently clearing the register cache when it doesn't need to be. Modified the ProcessGDBRemote plug-in to be much more efficient when it comes to: - caching the expedited registers in the stop reply packets (we were ignoring these before and it was causing us to read at least three registers every time we stopped that were already supplied in the stop reply packet). - When a thread has no stop reason, don't keep asking for the thread stopped info. Prior to this fix we would continually send a qThreadStopInfo packet over and over when any thread stop info was requested. We now note the stop ID that the stop info was requested for and avoid multiple requests. Cleaned up some of the expression code to not look for ClangExpressionVariable objects up by name since they are now shared pointers and we can just look for the exact pointer match and avoid possible errors. Fixed an bug in the ValueObject code that would cause children to not be displayed. llvm-svn: 123127
* Added memory caching to lldb_private::Process. All lldb_private::ProcessGreg Clayton2011-01-071-1/+204
| | | | | | | | | | | | | | | | | | subclasses will automatically be able to take advantage of caching. The cache line size is set to 512 by default. This greatly speeds up stack backtraces on MacOSX when using the ProcessGDBRemote process plug-in since only about 6300 packets per second can be sent. Initial speedups show: Prior to caching: 10,000 stack frames took 5.2 seconds After caching: 10,000 stack frames in 240 ms! About a 20x speedup! llvm-svn: 122996
* Fixed issues with RegisterContext classes and the subclasses. There wasGreg Clayton2011-01-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | an issue with the way the UnwindLLDB was handing out RegisterContexts: it was making shared pointers to register contexts and then handing out just the pointers (which would get put into shared pointers in the thread and stack frame classes) and cause double free issues. MallocScribble helped to find these issues after I did some other cleanup. To help avoid any RegisterContext issue in the future, all code that deals with them now returns shared pointers to the register contexts so we don't end up with multiple deletions. Also now that the RegisterContext class doesn't require a stack frame, we patched a memory leak where a StackFrame object was being created and leaked. Made the RegisterContext class not have a pointer to a StackFrame object as one register context class can be used for N inlined stack frames so there is not a 1 - 1 mapping. Updates the ExecutionContextScope part of the RegisterContext class to never return a stack frame to indicate this when it is asked to recreate the execution context. Now register contexts point to the concrete frame using a concrete frame index. Concrete frames are all of the frames that are actually formed on the stack of a thread. These concrete frames can be turned into one or more user visible frames due to inlining. Each inlined stack frame has the exact same register context (shared via shared pointers) as any parent inlined stack frames all the way up to the concrete frame itself. So now the stack frames and the register contexts should behave much better. llvm-svn: 122976
* Added the ability to read unsigned integers from the Process:Greg Clayton2010-12-161-0/+23
| | | | | | uint64_t Process::ReadUnsignedInteger (addr_t addr, size_t int_byte_size, Error &error); llvm-svn: 121996
* Fix invalid conversion from "const char *" to "char *" for linux systems. ↵Greg Clayton2010-12-151-1/+1
| | | | | | strchr() on darwin returns "char *" so we weren't seeing this issue on MacOSX. llvm-svn: 121897
* Modified LLDB expressions to not have to JIT and run code just to see variableGreg Clayton2010-12-141-19/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | values or persistent expression variables. Now if an expression consists of a value that is a child of a variable, or of a persistent variable only, we will create a value object for it and make a ValueObjectConstResult from it to freeze the value (for program variables only, not persistent variables) and avoid running JITed code. For everything else we still parse up and JIT code and run it in the inferior. There was also a lot of clean up in the expression code. I made the ClangExpressionVariables be stored in collections of shared pointers instead of in collections of objects. This will help stop a lot of copy constructors on these large objects and also cleans up the code considerably. The persistent clang expression variables were moved over to the Target to ensure they persist across process executions. Added the ability for lldb_private::Target objects to evaluate expressions. We want to evaluate expressions at the target level in case we aren't running yet, or we have just completed running. We still want to be able to access the persistent expression variables between runs, and also evaluate constant expressions. Added extra logging to the dynamic loader plug-in for MacOSX. ModuleList objects can now dump their contents with the UUID, arch and full paths being logged with appropriate prefix values. Thread hardened the Communication class a bit by making the connection auto_ptr member into a shared pointer member and then making a local copy of the shared pointer in each method that uses it to make sure another thread can't nuke the connection object while it is being used by another thread. Added a new file to the lldb/test/load_unload test that causes the test a.out file to link to the libd.dylib file all the time. This will allow us to test using the DYLD_LIBRARY_PATH environment variable after moving libd.dylib somewhere else. llvm-svn: 121745
* Added the ability to dump sections to a certain depth (for when sectionsGreg Clayton2010-12-081-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | have children sections). Modified SectionLoadList to do it's own multi-threaded protected on its map. The ThreadSafeSTLMap class was difficult to deal with and wasn't providing much utility, it was only getting in the way. Make sure when the communication read thread is about to exit, it clears the thread in the main class. Fixed the ModuleList to correctly ignore architectures and UUIDs if they aren't valid when searching for a matching module. If we specified a file with no arch, and then modified the file and loaded it again, it would not match on subsequent searches if the arch was invalid since it would compare an invalid architecture to the one that was found or selected within the shared library or executable. This was causing stale modules to stay around in the global module list when they should have been removed. Removed deprecated functions from the DynamicLoaderMacOSXDYLD class. Modified "ProcessGDBRemote::IsAlive" to check if we are connected to a gdb server and also make sure our process hasn't exited. llvm-svn: 121236
* Make sure that STDOUT and STDERR events in lldb_private::Process carry alongGreg Clayton2010-12-051-1/+1
| | | | | | a ProcessEventData so clients can get the process from these events. llvm-svn: 120947
* More reverting of the EOF stuff as the API was changed which we don't want toGreg Clayton2010-12-041-1/+1
| | | | | | | | | | do. Closing on EOF is an option that can be set on the lldb_private::Communication or the lldb::SBCommunication objects after they are created. Of course the EOF support isn't hooked up, so they don't do anything at the moment, but they are left in so when the code is fixed, it will be easy to get working again. llvm-svn: 120885
* Added the ability to display the new "target.process.inherit-env" setting.Greg Clayton2010-12-041-0/+7
| | | | llvm-svn: 120863
* Added the ability for a process to inherit the current host environment. ThisGreg Clayton2010-12-041-15/+84
| | | | | | | | | | was done as an settings variable in the process for now. We will eventually move all environment stuff over to the target, but we will leave it with the process for now. The default setting is for a process to inherit the host environment. This can be disabled by setting the "inherit-env" setting to false in the process. llvm-svn: 120862
* Add '-no-stdio' option to 'process launch' command, which causes theCaroline Tice2010-12-031-4/+25
| | | | | | | | | | inferior to be launched without setting up terminal stdin/stdout for it (leaving the lldb command line accessible while the program is executing). Also add a user settings variable, 'target.process.disable-stdio' to allow the user to set this globally rather than having to use the command option each time the process is launched. llvm-svn: 120825
* Fixed a typo in comment.Johnny Chen2010-12-021-1/+1
| | | | llvm-svn: 120733
* Add proper EOF handling to Communication & Connection classes:Caroline Tice2010-12-021-1/+1
| | | | | | | | | | Add bool member to Communication class indicating whether the Connection should be closed on receiving an EOF or not. Update the Connection read to return an EOF status when appropriate. Modify the Communication class to pass the EOF along or not, and to close the Connection or not, as appropriate. llvm-svn: 120723
* Moved the code in ClangUserExpression that set up & ran the thread plan with ↵Jim Ingham2010-11-301-3/+284
| | | | | | | | | | timeouts, and restarting with all threads into a utility function in Process. This required a bunch of renaming. Added a ThreadPlanCallUserExpression that differs from ThreadPlanCallFunction in that it holds onto a shared pointer to its ClangUserExpression so that can't go away before the thread plan is done using it. Fixed the stop message when you hit a breakpoint while running a user expression so it is more obvious what has happened. llvm-svn: 120386
* Add the ability to catch and do the right thing with Interrupts (often ↵Caroline Tice2010-11-191-5/+9
| | | | | | | | control-c) and end-of-file (often control-d). llvm-svn: 119837
* Fixed an issue where the UserSettingsControllers were being created out ofGreg Clayton2010-11-191-5/+6
| | | | | | | order and this was causing the target, process and thread trees to not be available. llvm-svn: 119784
* Cleaned up code that wasn't using the Initialize and Terminate paradigm byGreg Clayton2010-11-181-17/+20
| | | | | | | | | | | | | | | | | | changing it to use it. There was an extra parameter added to the static accessor global user settings controllers that wasn't needed. A bool was being used as a parameter to the accessor just so it could be used to clean up the global user settings controller which is now fixed by splitting up the initialization into the "static void Class::Initialize()", access into the "static UserSettingsControllerSP & Class::GetSettingsController()", and cleanup into "static void Class::Terminate()". Also added initialize and terminate calls to the logging code to avoid issues when LLDB is shutting down. There were cases after the logging was switched over to use shared pointers where we could crash if the global destructor chain was being run and it causes the log to be destroyed and any any logging occurred. llvm-svn: 119757
* Fixed Process::Halt() as it was broken for "process halt" after recent changesGreg Clayton2010-11-181-13/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | to the DoHalt down in ProcessGDBRemote. I also moved the functionality that was in ProcessGDBRemote::DoHalt up into Process::Halt so not every class has to implement a tricky halt/resume on the internal state thread. The functionality is the same as it was before with two changes: - when we eat the event we now just reuse the event we consume when the private state thread is paused and set the interrupted bool on the event if needed - we also properly update the Process::m_public_state with the state of the event we consume. Prior to this, if you issued a "process halt" it would eat the event, not update the process state, and then produce a new event with the interrupted bit set and send it. Anyone listening to the event would get the stopped event with a process that whose state was set to "running". Fixed debugserver to not have to be spawned with the architecture of the inferior process. This worked fine for launching processes, but when attaching to processes by name or pid without a file in lldb, it would fail. Now debugserver can support multiple architectures for a native debug session on the current host. This currently means i386 and x86_64 are supported in the same binary and a x86_64 debugserver can attach to a i386 executable. This change involved a lot of changes to make sure we dynamically detect the correct registers for the inferior process. llvm-svn: 119680
* Added an "Interrupted" bit to the ProcessEventData. Halt now generates an eventJim Ingham2010-11-171-36/+53
| | | | | | | | | with the Interrupted bit set. Process::HandlePrivateEvent ignores Interrupted events. DoHalt is changed to ensure that the stop even is processed, and an event with the Interrupted event is posted. Finally ClangFunction is rationalized to use this facility so the that Halt is handled more deterministically. llvm-svn: 119453
* Make processes use InputReaders for their input. Move the processCaroline Tice2010-11-161-1/+125
| | | | | | | | | ReadThread stuff into the main Process class (out of the Process Plugins). This has the (intended) side effect of disabling the command line tool from reading input/commands while the process is running (the input is directed to the running process rather than to the command interpreter). llvm-svn: 119329
* Add ThreadPlanTracer class to allow instruction step tracing of execution.Jim Ingham2010-11-111-1/+1
| | | | | | Also changed eSetVarTypeBool to eSetVarTypeBoolean to make it consistent with eArgTypeBoolean. llvm-svn: 118824
* Modified all logging calls to hand out shared pointers to make sure weGreg Clayton2010-11-061-16/+16
| | | | | | | | | | | 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
* Added the equivalent of gdb's "unwind-on-signal" to the expression command, ↵Jim Ingham2010-11-051-4/+4
| | | | | | and a parameter to control it in ClangUserExpression, and on down to ClangFunction. llvm-svn: 118290
* Added support for loading and unloading shared libraries. This was done byGreg Clayton2010-11-041-0/+136
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | adding support into lldb_private::Process: virtual uint32_t lldb_private::Process::LoadImage (const FileSpec &image_spec, Error &error); virtual Error lldb_private::Process::UnloadImage (uint32_t image_token); There is a default implementation that should work for both linux and MacOSX. This ability has also been exported through the SBProcess API: uint32_t lldb::SBProcess::LoadImage (lldb::SBFileSpec &image_spec, lldb::SBError &error); lldb::SBError lldb::SBProcess::UnloadImage (uint32_t image_token); Modified the DynamicLoader plug-in interface to require it to be able to tell us if it is currently possible to load/unload a shared library: virtual lldb_private::Error DynamicLoader::CanLoadImage () = 0; This way the dynamic loader plug-ins are allows to veto whether we can currently load a shared library since the dynamic loader might know if it is currenlty loading/unloading shared libraries. It might also know about the current host system and know where to check to make sure runtime or malloc locks are currently being held. Modified the expression parser to have ClangUserExpression::Evaluate() be the one that causes the dynamic checkers to be loaded instead of other code that shouldn't have to worry about it. llvm-svn: 118227
* Cleaned up the API logging a lot more to reduce redundant information and Greg Clayton2010-10-311-1/+6
| | | | | | | | | keep the file size a bit smaller. Exposed SBValue::GetExpressionPath() so SBValue users can get an expression path for their values. llvm-svn: 117851
* Add the ability to disable individual log categories, ratherCaroline Tice2010-10-291-0/+4
| | | | | | | | | than just the entire log channel. Add checks, where appropriate, to make sure a log channel/category has not been disabled before attempting to write to it. llvm-svn: 117715
* Don't cache the public stop reason, since it can change as plan completion ↵Jim Ingham2010-10-201-3/+3
| | | | | | gets processed. That means GetStopReason needs to return a shared pointer, not a pointer to the thread's cached version. Also allow the thread plans to get and set the thread private stop reason - that is usually more appropriate for the logic the thread plans need to do. llvm-svn: 116892
* Stop the driver from handling SIGPIPE in case we communicate with stale Greg Clayton2010-10-191-6/+6
| | | | | | | | | | | | | | | | | | | | sockets so the driver doesn't just crash. Added support for connecting to named sockets (unix IPC sockets) in ConnectionFileDescriptor. Modified the Host::LaunchInNewTerminal() for MacOSX to return the process ID of the inferior process instead of the process ID of the Terminal.app. This was done by modifying the "darwin-debug" executable to connect to lldb through a named unix socket which is passed down as an argument. This allows a quick handshake between "lldb" and "darwin-debug" so we can get the process ID of the inferior and then attach by process ID and avoid attaching to the inferior by process name since there could be more than one process with that name. This still has possible race conditions, those will be fixed in the near future. This fixes the SIGPIPE issues that were sometimes being seen when task_for_pid was failing. llvm-svn: 116792
* Still trying to get detach to work with debugserver. Got a bit closer,Greg Clayton2010-10-181-2/+3
| | | | | | | | | | | but something is still killing our inferior. Fixed an issue with darwin-debug where it wasn't passing all needed arguments to the inferior. Fixed a race condition with the attach to named process code. llvm-svn: 116697
* Fixed debugserver to properly attach to a process by name with the Greg Clayton2010-10-181-1/+7
| | | | | | | | | | | | | | | | | | | "vAttachName;<PROCNAME>" packet, and wait for a new process by name to launch with the "vAttachWait;<PROCNAME>". Fixed a few issues with attaching where if DoAttach() returned no error, yet there was no valid process ID, we would deadlock waiting for an event that would never happen. Added a new "process launch" option "--tty" that will launch the process in a new terminal if the Host layer supports the "Host::LaunchInNewTerminal(...)" function. This currently works on MacOSX and will allow the debugging of terminal applications that do complex operations with the terminal. Cleaned up the output when the process resumes, stops and halts to be consistent with the output format. llvm-svn: 116693
* Added support for breakpoint conditions. I also had to separate the "run ↵Jim Ingham2010-10-141-2/+2
| | | | | | | | the expression" part of ClangFunction::Execute from the "Gather the expression result" so that in the case of the Breakpoint condition I can move the condition evaluation into the normal thread plan processing. Also added support for remembering the "last set breakpoint" so that "break modify" will act on the last set breakpoint. llvm-svn: 116542
* Fix a regression introduced in r116430 with the added 'break' statement,Johnny Chen2010-10-141-1/+1
| | | | | | | | which broke test/breakpoint_locations. Add a comment about intentional fall-through in the case statement. llvm-svn: 116463
* Add new argument type, eArgSignalName,Caroline Tice2010-10-131-0/+1
| | | | | | | | | | | Add missing break statment to case statement in Process::ShouldBroadcastEvent. Add new command, "process handle" to allow users to control process behavior on the receipt of various Unix signals (whether the process should stop; whether the process should be passed the signal; whether the debugger user should be notified that the signal came in). llvm-svn: 116430
* Add a way to temporarily divert events from a broadcaster to a private listener.Jim Ingham2010-10-111-0/+17
| | | | llvm-svn: 116271
* Cleaned up the SWIG stuff so all includes happen as they should, no pullingGreg Clayton2010-10-071-1/+10
| | | | | | | | | | | | | | | | | | tricks to get types to resolve. I did this by correctly including the correct files: stdint.h and all lldb-*.h files first before including the API files. This allowed me to remove all of the hacks that were in the lldb.swig file and it also allows all of the #defines in lldb-defines.h and enumerations in lldb-enumerations.h to appear in the lldb.py module. This will make the python script code a lot more readable. Cleaned up the "process launch" command to not execute a "process continue" command, it now just does what it should have with the internal API calls instead of executing another command line command. Made the lldb_private::Process set the state to launching and attaching if WillLaunch/WillAttach return no error respectively. llvm-svn: 115902
* There are now to new "settings set" variables that live in each debuggerGreg Clayton2010-10-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | instance: settings set frame-format <string> settings set thread-format <string> This allows users to control the information that is seen when dumping threads and frames. The default values are set such that they do what they used to do prior to changing over the the user defined formats. This allows users with terminals that can display color to make different items different colors using the escape control codes. A few alias examples that will colorize your thread and frame prompts are: settings set frame-format 'frame #${frame.index}: \033[0;33m${frame.pc}\033[0m{ \033[1;4;36m${module.file.basename}\033[0;36m ${function.name}{${function.pc-offset}}\033[0m}{ \033[0;35mat \033[1;35m${line.file.basename}:${line.number}}\033[0m\n' settings set thread-format 'thread #${thread.index}: \033[1;33mtid\033[0;33m = ${thread.id}\033[0m{, \033[0;33m${frame.pc}\033[0m}{ \033[1;4;36m${module.file.basename}\033[0;36m ${function.name}{${function.pc-offset}}\033[0m}{, \033[1;35mstop reason\033[0;35m = ${thread.stop-reason}\033[0m}{, \033[1;36mname = \033[0;36m${thread.name}\033[0m}{, \033[1;32mqueue = \033[0;32m${thread.queue}}\033[0m\n' A quick web search for "colorize terminal output" should allow you to see what you can do to make your output look like you want it. The "settings set" commands above can of course be added to your ~/.lldbinit file for permanent use. Changed the pure virtual void ExecutionContextScope::Calculate (ExecutionContext&); To: void ExecutionContextScope::CalculateExecutionContext (ExecutionContext&); I did this because this is a class that anything in the execution context heirarchy inherits from and "target->Calculate (exe_ctx)" didn't always tell you what it was really trying to do unless you look at the parameter. llvm-svn: 115485
* Replace the vestigial Value::GetOpaqueCLangQualType with the more correct ↵Jim Ingham2010-09-281-7/+0
| | | | | | | | Value::GetValueOpaqueClangQualType. But mostly, move the ObjC Trampoline handling code from the MacOSX dyld plugin to the AppleObjCRuntime classes. llvm-svn: 114935
* Create more useful instance names for target, process and thread instances.Caroline Tice2010-09-271-0/+16
| | | | | | | Change default 'set' behavior so that all instance settings for the specified variable will be updated, unless the "-n" ("--no_override") command options is specified. llvm-svn: 114808
* Committing the skeleton of Language runtime plugin classes.Jim Ingham2010-09-231-0/+38
| | | | llvm-svn: 114620
* Make GetInstanceSettingsValue methods take an Error * rather than an Error &,Caroline Tice2010-09-201-3/+8
| | | | | | and have them return a bool to indicate success or not. llvm-svn: 114361
* Add UserSettings to Target class, making Target settingsCaroline Tice2010-09-201-3/+4
| | | | | | | | | | | | | | | | | | the parent of Process settings; add 'default-arch' as a class-wide setting for Target. Replace lldb::GetDefaultArchitecture with Target::GetDefaultArchitecture & Target::SetDefaultArchitecture. Add 'use-external-editor' as user setting to Debugger class & update code appropriately. Add Error parameter to methods that get user settings, for easier reporting of bad requests. Fix various other minor related bugs. Fix test cases to work with new changes. llvm-svn: 114352
* Added code that will allow completely customizable prompts for use inGreg Clayton2010-09-191-30/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | replacing the "(lldb)" prompt, the "frame #1..." displays when doing stack backtracing and the "thread #1....". This will allow you to see exactly the information that you want to see where you want to see it. This currently isn't hookup up to the prompts yet, but it will be soon. So what is the format of the prompts? Prompts can contain variables that have access to the current program state. Variables are text that appears in between a prefix of "${" and ends with a "}". Some of the interesting variables include: // The frame index (0, 1, 2, 3...) ${frame.index} // common frame registers with generic names ${frame.pc} ${frame.sp} ${frame.fp} ${frame.ra} ${frame.flags} // Access to any frame registers by name where REGNAME is any register name: ${frame.reg.REGNAME} // The current compile unit file where the frame is located ${file.basename} ${file.fullpath} // Function information ${function.name} ${function.pc-offset} // Process info ${process.file.basename} ${process.file.fullpath} ${process.id} ${process.name} // Thread info ${thread.id} ${thread.index} ${thread.name} ${thread.queue} ${thread.stop-reason} // Target information ${target.arch} // The current module for the current frame (the shared library or executable // that contains the current frame PC value): ${module.file.basename} ${module.file.fullpath} // Access to the line entry for where the current frame is when your thread // is stopped: ${line.file.basename} ${line.file.fullpath} ${line.number} ${line.start-addr} ${line.end-addr} Many times the information that you might have in your prompt might not be available and you won't want it to print out if it isn't valid. To take care of this you can enclose everything that must resolve into a scope. A scope is starts with '{' and ends with '}'. For example in order to only display the current file and line number when the information is available the format would be: "{ at {$line.file.basename}:${line.number}}" Broken down this is: start the scope: "{" format whose content will only be displayed if all information is available: "at {$line.file.basename}:${line.number}" end the scope: "}" We currently can represent the infomration we see when stopped at a frame: frame #0: 0x0000000100000e85 a.out`main + 4 at test.c:19 with the following format: "frame #${frame.index}: ${frame.pc} {${module.file.basename}`}{${function.name}{${function.pc-offset}}{ at ${line.file.basename}:${line.number}}\n" This breaks down to always print: "frame #${frame.index}: ${frame.pc} " only print the module followed by a tick if we have a valid module: "{${module.file.basename}`}" print the function name with optional offset: "{${function.name}{${function.pc-offset}}" print the line info if it is available: "{ at ${line.file.basename}:${line.number}}" then finish off with a newline: "\n" Notice you can also put newlines ("\n") and tabs and everything else you are used to putting in a format string when desensitized with the \ character. Cleaned up some of the user settings controller subclasses. All of them do not have any global settings variables and were all implementing stubs for the get/set global settings variable. Now there is a default version in UserSettingsController that will do nothing. llvm-svn: 114306
* Fix issues with CreateInstanceName, a virtual function, being calledCaroline Tice2010-09-161-1/+8
| | | | | | in an initializer. llvm-svn: 114107
* Moved the section load list up into the target so we can use the targetGreg Clayton2010-09-141-99/+1
| | | | | | to symbolicate things without the need for a valid process subclass. llvm-svn: 113895
* Fixed an issue that was always causing an extra empty argument to be sentGreg Clayton2010-09-141-4/+2
| | | | | | | | to any inferior process because the code was checking if no run args were set and then adding and empty string. This was happening for environment vars as well. llvm-svn: 113831
* Add comments to InstanceSettings constructors explaining why they have Caroline Tice2010-09-091-3/+7
| | | | | | | to be set up the way they are. Comment out code that removes pending settings for live instances (after the settings are copied over). llvm-svn: 113519
* Move the ProcessPlugins enum definition from lldb-enumerations.h to Caroline Tice2010-09-091-3/+3
| | | | | | | Process.h; modify the process.plugins settings variable to use the correct plugin names. llvm-svn: 113510
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