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* This patch modifies the expression parser to allow itSean Callanan2011-09-151-219/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | to execute expressions even in the absence of a process. This allows expressions to run in situations where the target cannot run -- e.g., to perform calculations based on type information, or to inspect a binary's static data. This modification touches the following files: lldb-private-enumerations.h Introduce a new enum specifying the policy for processing an expression. Some expressions should always be JITted, for example if they are functions that will be used over and over again. Some expressions should always be interpreted, for example if the target is unsafe to run. For most, it is acceptable to JIT them, but interpretation is preferable when possible. Target.[h,cpp] Have EvaluateExpression now accept the new enum. ClangExpressionDeclMap.[cpp,h] Add support for the IR interpreter and also make the ClangExpressionDeclMap more robust in the absence of a process. ClangFunction.[cpp,h] Add support for the new enum. IRInterpreter.[cpp,h] New implementation. ClangUserExpression.[cpp,h] Add support for the new enum, and for running expressions in the absence of a process. ClangExpression.h Remove references to the old DWARF-based method of evaluating expressions, because it has been superseded for now. ClangUtilityFunction.[cpp,h] Add support for the new enum. ClangExpressionParser.[cpp,h] Add support for the new enum, remove references to DWARF, and add support for checking whether the expression could be evaluated statically. IRForTarget.[h,cpp] Add support for the new enum, and add utility functions to support the interpreter. IRToDWARF.cpp Removed CommandObjectExpression.cpp Remove references to the obsolete -i option. Process.cpp Modify calls to ClangUserExpression::Evaluate to pass the correct enum (for dlopen/dlclose) SBValue.cpp Add support for the new enum. SBFrame.cpp Add support for he new enum. BreakpointOptions.cpp Add support for the new enum. llvm-svn: 139772
* Order of initialization lists.Stephen Wilson2011-04-111-2/+2
| | | | | | | | This patch fixes all of the warnings due to unordered initialization lists. Patch by Marco Minutoli. llvm-svn: 129290
* Move some of the more noisy "log enable lldb expression" output to the ↵Jim Ingham2011-01-221-3/+3
| | | | | | verbose output. llvm-svn: 124014
* Modified LLDB expressions to not have to JIT and run code just to see variableGreg Clayton2010-12-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Modified all logging calls to hand out shared pointers to make sure weGreg Clayton2010-11-061-1/+1
| | | | | | | | | | | 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
* Updated to latest LLVM. Major LLVM changes:Sean Callanan2010-09-231-1/+1
| | | | | | | | | | - Sema is now exported (and there was much rejoicing.) - Storage classes are now centrally defined. Also fixed some bugs that the new LLVM picked up. llvm-svn: 114622
* This is a major refactoring of the expression parser.Sean Callanan2010-08-271-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The goal is to separate the parser's data from the data belonging to the parser's clients. This allows clients to use the parser to obtain (for example) a JIT compiled function or some DWARF code, and then discard the parser state. Previously, parser state was held in ClangExpression and used liberally by ClangFunction, which inherited from ClangExpression. The main effects of this refactoring are: - reducing ClangExpression to an abstract class that declares methods that any client must expose to the expression parser, - moving the code specific to implementing the "expr" command from ClangExpression and CommandObjectExpression into ClangUserExpression, a new class, - moving the common parser interaction code from ClangExpression into ClangExpressionParser, a new class, and - making ClangFunction rely only on ClangExpressionParser and not depend on the internal implementation of ClangExpression. Side effects include: - the compiler interaction code has been factored out of ClangFunction and is now in an AST pass (ASTStructExtractor), - the header file for ClangFunction is now fully documented, - several bugs that only popped up when Clang was deallocated (which never happened, since the lifetime of the compiler was essentially infinite) are now fixed, and - the developer-only "call" command has been disabled. I have tested the expr command and the Objective-C step-into code, which use ClangUserExpression and ClangFunction, respectively, and verified that they work. Please let me know if you encounter bugs or poor documentation. llvm-svn: 112249
* First step of refactoring variable handling in theSean Callanan2010-08-201-1/+1
| | | | | | | | | | | | | | | expression parser. There shouldn't be four separate classes encapsulating a variable. ClangExpressionVariable is now meant to be the container for all variable information. It has several optional components that hold data for different subsystems. ClangPersistentVariable has been removed; we now use ClangExpressionVariable instead. llvm-svn: 111600
* Patch by Bill Lynch fixing handling of the pidSean Callanan2010-08-181-3/+4
| | | | | | in the IR transformation passes. llvm-svn: 111388
* Added and improved logging. This is helping us as weSean Callanan2010-07-281-26/+13
| | | | | | | diagnose a problem where we're not correctly emitting PIC code. llvm-svn: 109568
* Added the skeleton of an IR transformer that willSean Callanan2010-07-031-2/+4
| | | | | | | | | | prepare IR for execution in the target. Wired the expression command to use this IR transformer when conversion to DWARF fails, and wired conversion to DWARF to always fail (well, we don't generate any DWARF...) llvm-svn: 107559
* Fixes to improve logging (by printing basicSean Callanan2010-07-021-2/+3
| | | | | | | block labels) and produce cleaner IR (by removing the thread-safe statics guards) llvm-svn: 107528
* Small fixes to the DWARF relocator.Sean Callanan2010-07-021-2/+6
| | | | llvm-svn: 107518
* Added the skeleton of a transformation pass toSean Callanan2010-07-021-0/+222
convert IR to DWARF. So far, this pass only performs a depth-first traversal of the IR, logging each basic block as it finds it. llvm-svn: 107515
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