This will allow debugger plug-ins to make any instance of "lldb_private::StopInfo"
that can completely describe any stop reason. It also provides a framework for
doing intelligent things with the stop info at important times in the lifetime
of the inferior.
Examples include the signal stop info in StopInfoUnixSignal. It will check with
the process to see that the current action is for the signal. These actions
include wether to stop for the signal, wether the notify that the signal was
hit, and wether to pass the signal along to the inferior process. The
StopInfoUnixSignal class overrides the "ShouldStop()" method of StopInfo and
this allows the stop info to determine if it should stop at the signal or
continue the process.
StopInfo subclasses must override the following functions:
virtual lldb::StopReason
GetStopReason () const = 0;
virtual const char *
GetDescription () = 0;
StopInfo subclasses can override the following functions:
// If the subclass returns "false", the inferior will resume. The default
// version of this function returns "true" which means the default stop
// info will stop the process. The breakpoint subclass will check if
// the breakpoint wants us to stop by calling any installed callback on
// the breakpoint, and also checking if the breakpoint is for the current
// thread. Signals will check if they should stop based off of the
// UnixSignal settings in the process.
virtual bool
ShouldStop (Event *event_ptr);
// Sublasses can state if they want to notify the debugger when "ShouldStop"
// returns false. This would be handy for breakpoints where you want to
// log information and continue and is also used by the signal stop info
// to notify that a signal was received (after it checks with the process
// signal settings).
virtual bool
ShouldNotify (Event *event_ptr)
{
return false;
}
// Allow subclasses to do something intelligent right before we resume.
// The signal class will figure out if the signal should be propagated
// to the inferior process and pass that along to the debugger plug-ins.
virtual void
WillResume (lldb::StateType resume_state)
{
// By default, don't do anything
}
The support the Mach exceptions was moved into the lldb/source/Plugins/Process/Utility
folder and now doesn't polute the lldb_private::Thread class with platform
specific code.
llvm-svn: 110184
including superclass members. This involved ensuring
that access control was ignored, and ensuring that
the operands of BitCasts were properly scanned for
variables that needed importing.
Also laid the groundwork for declaring objects of
custom types; however, this functionality is disabled
for now because of a potential loop in ASTImporter.
llvm-svn: 110174
involved watching for the objective C built-in types in DWARF and making sure
when we convert the DWARF types into clang types that we use the appropriate
ASTContext types.
Added a way to find and dump types in lldb (something equivalent to gdb's
"ptype" command):
image lookup --type <TYPENAME>
This only works for looking up types by name and won't work with variables.
It also currently dumps out verbose internal information. I will modify it
to dump more appropriate user level info in my next submission.
Hookup up the "FindTypes()" functions in the SymbolFile and SymbolVendor so
we can lookup types by name in one or more images.
Fixed "image lookup --address <ADDRESS>" to be able to correctly show all
symbol context information, but it will only show this extra information when
the new "--verbose" flag is used.
Updated to latest LLVM to get a few needed fixes.
llvm-svn: 110089
of profiling code into expressions.
Modified IRForTarget to emit array and record
member accesses correctly. (Reading and writing
both work.)
llvm-svn: 110088
call Objective-C methods from expressions. Also added
some more logging to the function-calling thread plan
so that we can see the registers when a function
finishes.
Also documented things maybe a bit better.
llvm-svn: 109938
Change the prototype of ScriptInterpreter::ExecuteOneLine() to return bool
instead of void and take one additional parameter as CommandReturnObject *.
Propagate the status of one-liner execution back appropriately.
llvm-svn: 109899
lldb_private::Language class into the enumerations header so it can be freely
used by other interfaces.
Added correct objective C class support to the DWARF symbol parser. Prior to
this fix we were parsing objective C classes as C++ classes and now that the
expression parser is ready to call functions we need to make sure the objective
C classes have correct AST types.
llvm-svn: 109574
Right now we mock up the function as a variadic
function when generating the IR for the call; we need
to eventually make the function be the right type if
the type is available.
llvm-svn: 109543
it returns a list of functions as a SymbolContextList.
Rewrote the clients of SymbolContext to use this
SymbolContextList.
Rewrote some of the providers of the data to SymbolContext
to make them respect preferences as to whether the list
should be cleared first; propagated that change out.
ClangExpressionDeclMap and ClangASTSource use this new
function list to properly generate function definitions -
even for functions that don't have a prototype in the
debug information.
llvm-svn: 109476
This component is still at an early stage, but allows for simple
breakpoint/step-over operations and basic process control.
The makefiles are set up to build the plugin under Linux only.
llvm-svn: 109318
spurious guard variables on expression statics.
Updated the AST result synthesizer to eliminate the
unneeded result pointer.
Very rudimentary expressions now evaluate correctly
in the target using the new JIT-based mechanism.
llvm-svn: 109317
- When we JIT an expression, we print the disassembly
of the generated code
- When we put the structure into the target, we print
the individual entries in the structure byte for
byte.
llvm-svn: 109278
ThreadCancel in Host::WillTerminate g_monitor_thread may be blocked on a call
to pthread_cond_wait (for example, line 640). Now, by default, when a
cancellation request is serviced g_monitor_thread will again own the mutex
guarding the condition variable it was waiting on. This causes the call to
SetValue in Host::WillTerminate to hit a deadlock.
The call to SetValue does not appear to be needed, so removing it solves
the issue.
Patch from Stephen Wilson.
llvm-svn: 109228
a segfault when calling pthread_cancel. Also, sets m_read_thread_enabled if
the thread is actually spawned.
Patch from Stephen Wilson.
llvm-svn: 109227
to be executed by the inferior. This required explicit support
from RecordingMemoryManager for finding the address range
belonging to a particular function.
Also fixed a bug in DisassemblerLLVM where the disassembler
assumed there was an AddressRange available even when it was
NULL.
llvm-svn: 109209
and moved it to its own header file for cleanliness.
Added more logging to ClangFunction so that we can
diagnose crashes in the executing expression.
Added code to extract the result of the expression
from the struct that is passed to the JIT-compiled
code.
llvm-svn: 109199
invalidated. There was a race condition where the private thread would
invalidate its own pthread_t object before the parent could perform a
pthread_cancel/pthread_join sequence.
Patch from Stephen Wilson.
llvm-svn: 109131
I also added new functions to create an Objective C class, ivar and set an objective C superclass. They aren't hooked up in the DWARF parser yet. That is the next step, though I am unsure if I will do this in the DWARF parser or try and do it generically in the existing Record manipulation functions.
llvm-svn: 109130
SectionType for Section objects for DWARF.
Modified the DWARF plug-in to get the DWARF sections by SectionType so we
can safely abstract the LLDB core from section names for the various object
file formats.
Modified the SectionType definitions for .debug_pubnames and .debug_pubtypes
to use the correct case.
llvm-svn: 109054
defines that are in "llvm/Support/MachO.h". This should allow ObjectFileMachO
and ObjectContainerUniversalMachO to be able to be cross compiled in Linux.
Also did some cleanup on the ASTType by renaming it to ClangASTType and
renaming the header file. Moved a lot of "AST * + opaque clang type *"
functionality from lldb_private::Type over into ClangASTType.
llvm-svn: 109046
used by the JIT compiled expression, including the
result of the expression.
Also added a new class, ASTType, which encapsulates an
opaque Clang type and its associated AST context.
Refactored ClangExpressionDeclMap to use ASTTypes,
significantly reducing the possibility of mixups of
types from different AST contexts.
llvm-svn: 108965
