respective Type classes. StackFrameDebugInfo is pretty much out of work now,
but maybe something comes up later.
* Renamed GlobalTypeLookupContext to GlobalTypeCache and renamed its methods.
* A TeamDebugInfo does now have a GlobalTypeCache which is used for resolving
types. Formerly it was created per stack frame, so all types had to be
resolved after each single step. Single-stepping is usably fast again.
The disadvantage is that DWARF theoretically allows types properties to
depend on instruction/frame/frame base pointer and we don't support that
anymore. I can't think of a reasonable application for that feature, though.
* Refactored DwarfStackFrameDebugInfo:
- Moved the type classes into new DwarfTypes.{h,cpp}.
- Moved the creation of types into new class DwarfTypeFactory.
- Added class DwarfTypeContext which bundles all the dependencies of the type
classes.
* Made DwarfFile a BReferenceable.
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- Introduced GlobalTypeLookup interface and GlobalTypeLookupContext to look
up types by name and cache them.
- TeamDebugInfo implementes GlobalTypeLookup iterating through all
ImageDebugInfos, which in turn iterate through all SpecificImageDebugInfos.
- DwarfImageDebugInfo iterates through all compilation units, using
a temporary DwarfStackFrameDebugInfo to create the type.
- DwarfStackFrameDebugInfo no longer caches the types itself, but uses
GlobalTypeLookupContext. It uses GlobalTypeLookup to look up types not
defined in the compilation unit.
- DwarfFile: Made expression evaluation more robust, so that it also works,
when no subroutine entry, frame pointer, and instruction pointer are
available (and not used by the expression).
Basically works already, although the wrong compilation unit might be used
when resolving values for global types. It's also horribly slow, when there
are many types in the stack frame.
* DwarfStackFrameDebugInfo::ResolveArrayElementLocation(): The element location
piece size was set incorrectly (multiplied by 8, although bytes were
expected).
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element in a multi-dimensional array, featuring conversion from and to string.
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now be inspected. Still work in progress -- bit fields and arrays don't work
correctly yet nor does type lookup beyond the current compilation unit.
* Made most of the debugger output configurable via a config header. By default
it's much less noisy now.
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SourceFunctionID (where we know the souce location of the function) and
ImageFunctionID (where we don't know the source location). Made the
classes archivable.
* Added support to find functions by ID.
* Improved user breakpoint handling. We can now "install" a breakpoint before we
even know the function instances in which to install it. Whenever image debug
information become available, breakpoints are installed in the concerned
function instances of the respective image.
* Always trigger loading image debug info as soon as we become aware of an
image.
* Implemented a settings management mechanism. ATM only the breakpoint
locations for debugged teams are persisted. This seriously improves the
debugging fun, though. :-)
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- Made Job Referenceable.
- Turned JobKey into an abstract base class to add flexibility. The new
SimpleJobKey is a subclass with the former functionality.
* TeamWindow: Removed the TeamWindow* parameter from the listener hooks. The
TeamDebugger knows anyway.
* Added IDs to Variable, Function, and FunctionInstance. The latter two generate
the ID on the fly, Variable stores it.
* SpecificImageDebugInfo::CreateFrame(): Changed FunctionDebugInfo* debug
parameter to FunctionInstance* to provide more info (the function ID).
* DwarfInterfaceFactory/DwarfImageDebugInfo:
- Added class DwarfFunctionParameterID, an ID class implementation for
function parameters and set the IDs on the parameter objects.
- Retrieve the size of a type (i.e. the size of its objects) and store it in
DwarfType.
- If a parameter's ValueLocation doesn't have a size, set that of the
respective type.
- Map the register indicies in the parameters' ValueLocations from DWARF to
our indices.
* Added class TypeComponentPath for identifying subcomponents in types.
* Added class StackFrameValues, a container associating variables and their
subcomponents with values.
* StackFrame does now have a StackFrameValues object for parameters and local
variables and a mechanism to notify listeners when values have been retrieved.
* Added GetStackFrameValueJob to retrieve variable values. Lots of functionality
is missing yet. Most notably it doesn't retrieves values for subcomponents.
* Wired everything to trigger loading of variable values and getting notified
when done.
* VariablesView: Added a value column. This is all very basic and has to be
done differently, but at least values for the parameters can be seen already.
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machine.
* DWARF:
- Various additions to the DIE classes.
- DwarfExpressionEvaluationContext:
- Added support for location expressions and thus the missing DW_OP_piece
and DW_OP_bit_piece operations.
- Fixed some deviations from the specs.
- Added debug output.
- DwarfFile:
- Added missing evaluation of CFA expression rules.
- Added service methods to evaluate expressions, location expressions,
and constant and dynamic values.
* Added model classes for representing types and variables. Particularly the
types part is not finished yet.
* StackFrame does now contain parameters and local variables.
* Added DwarfInterfaceFactory, which creates implementation objects for the
types, as well as variables objects. It's even less finished.
* DwarfImageDebugInfo::CreateFrame(): Resolve function parameters and add them
to the stack frame. No local variables yet.
* Added the beginnings of a variables view. Only lists the names of parameters
and local variables (of understood types) ATM.
* Renamed RegisterView to RegistersView.
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subclasses, though they don't do much yet. SourceCode is now associated with a
SourceLanguage.
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- Added a type constant describing the format of the register value.
- Added flag "is callee-preserved" indicating whether the ABI requires the
register to be preserved by a called function.
* CpuState: Added SetRegisterValue(), made GetRegisterValue() const.
* Added RegisterMap interface for mapping register indices between different
models.
* Architecture:
- Added CreateCpuState() version to create a clean CpuState.
- Added GetDwarfRegisterMaps(), which returns to RegisterMaps, converting
from and to DWARF register indices.
- Added ReadValueFromMemory() reading a value from the target team's memory.
The value type is specified by a type constant and the value return via a
BVariant.
- CreateStackTrace: No longer decide whether to adjust the instruction pointer
of the previous CPU state depending on who created the CPU state. Instead
compare it with the return address of the next frame. If they are equal it
obviously has to be adjusted.
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a good part of the source tree, so I rather get those changes into the
repository before continuing.
The general aim of the work is to deal with multiple instances of the same
function, e.g. inlined or non-inlined inline functions or those weird duplicates
gcc (4 at least) seems to be generating for no apparent reason.
* Added classes FunctionInstance (wrapping FunctionDebugInfo) and Function.
FunctionInstance represents a physical instance of a function (e.g. inlined
function at a particular address). A Function collects all FunctionInstances
referring to the same source code location.
* Moved the SourceCode property from FunctionDebugInfo to Function accordingly.
* Since SourceCode is no longer associated with a concrete function instance,
several methods dealing with statements have been removed and the
functionality has been provided through other means (e.g. TeamDebugModel or
SpecificImageDebugModel). This part is not yet completed.
* Introduced UserBreakpoint and UserBreakpointInstance. The user sets a
breakpoint at a source code location, which is represented by a
UserBreakpoint. Since that source location can be mapped to one address per
instance of the respective function, UserBreakpoint has a
UserBreakpointInstance per such function instance, which in turn refers to a
Breakpoint (an actual breakpoint at an address).
* Adjusted Breakpoint, BreakpointManager, and TeamDebugger accordingly.
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- DwarfUtils::GetDeclarationLocation(): Line/column numbers are one-based.
- Added line number program interpretation (LineNumberProgram).
* FunctionDebugInfo: Return the source file (LocatableFile) instead of the
file name.
* FileManager/LocatableEntry: Fixed handling when a LocatableEntry is
unreferenced. There was a race condition before, since an unreferenced entry
could be referenced and unreferenced again before removing it from the hash
table, which could lead to double deletion. Now we never reuse an unreferenced
entry and just remove it from the hash table when encountering one.
* FileManager/SourceFile: Added class SourceFile which loads a source file from
disk and slices it into lines. Managed by FileManager.
* Added class FileSourceCode, a SourceCode implementation using a SourceFile as
line provider. The statement management works pretty much exactly as in
DissassembledCode.
* DwarfImageDebugInfo: Implemented LoadSourceCode for real. It creates a
FileSourceCode and uses the DWARF line number information for the statement
information. This basically gets the source level view going, though there
are still several problems -- stepping doesn't work perfectly yet, the source
isn't found for all functions, there's no handling of duplicate functions (no
idea why gcc generates them in the first place), etc.
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* Added StringUtils with string hash functions.
* Added Locatable{Entry,File,Directory} and FileManager classes to manage the
mapping from debug info/target file names to local file names.
* Image does now have a LocatableFile referring to the image's shared object
file. Added listening to location changes of these files to TeamDebugger. No
action is taken yet (should trigger reloading the debug info).
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* Created "types" subdirectory for basic types and moved Types.h,
SourceLocation, TargetAddressRange there.
* Added TargetAddressRangeList, representing a list of address ranges.
* Array: Added copy constructor and assignment operator.
* Added DwarfFunctionDebugInfo.
* ElfFile: Also read the program headers and provide access to the segment
information.
* DWARF:
- Some work on DIECompileUnitBase and DIESubprogram to handle attributes we
need.
- Added DwarfUtils class which provides static utility methods. Currently some
to get DIE names. Only provisionally implemented yet.
- Read range list attribute values from the .debug_ranges section. Extended
AttributeValue to handle them correctly (ref-counting).
* DwarfImageDebugInfo:
- Implemented GetFunctions() for real, i.e. we return functions for all
subprogram debug info entries we find (those that refer to actual
functions, that is).
- Implemented the fallback part of LoadSourceCode() (reading the code from the
file and disassembling it).
Things should hopefully work as before, just a bit slower and with less accurate
function names, if DWARF debug info is available. Promising, eh? ;-)
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* Added TeamDebugInfo which serves as factory for ImageDebugInfos.
* Added the DWARF code to the build again. It's not used yet, though.
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the jobs accordingly.
* Added a view to list the source files and functions for an image.
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support for temporary breakpoints.
* TeamDebugger: No longer handle debug events in the listener thread. Instead
post a message to the looper thread. Makes the locking a bit easier.
* Architecture: Added virtual GetInstructionInfo() and GetStatement() returning
information on the instruction respectively a statement at a given address.
Implemented for x86.
* DebugInfo: Added virtual GetStatement() and implemented it for
DebuggerDebugInfo by means of using the Architecture.
* Implemented step over/into/out support. Works in principle, but has no
handling for PLTs yet, i.e. stepping into functions of other libraries
requires two steps ATM.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31244 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added new job to get the initial state of a thread.
* Now we also get the states of new threads correctly.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31221 a95241bf-73f2-0310-859d-f6bbb57e9c96
Extended the event mechanism respectively.
* Added support to SourceView to display breakpoints and manipulate them.
* Extended TeamDebugger to install/uninstall breakpoints.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31189 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added x86 disassembler (via libudis86).
* Added Architecture::DisassembleCode() to disassemble a function to SourceCode.
* Added virtual DebugInfo::LoadSourceCode() to retrieve the source code for a
given function. The implementation in DebuggerDebugInfo disassembles the
function.
* Added source code info to StackFrame. Also added a listener mechanism to get
notified on source code changes.
* Added job to load the source code for a stack frame.
* Added (very basic) source code view and wired everything so that when a stack
frame is selected the source code (respectively disassembly) for the
underlying function is retrieved and shown.
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* Added the beginnings of the debug info abstraction. Currently we can only load
the symbols via the debugger.
* Added a job to retrieve debug info for an image. Extended the GetStackTraceJob
to support waiting for image debug info to be loaded.
* Extended ImageInfo by text/data address and size.
* Removed StackFrameX86 and made StackFrame a simple non-polymorphic class
featuring all the needed data. The really architecture-dependent is in the
referenced CpuState already. Added Image* and FunctionDebugInfo* attributes,
referring to the image respectively debug info for the function hit by the
instruction pointer.
* Switched StrackTrace's StackFrame management from DoublyLinkedList to
BObjectList. This makes it more comfortable to use.
* Changed the code for creating stack traces:
- The creation of the StackTrace object and the main loop to collect the
frames are now located in the no longer virtual
Architecture::CreateStackTrace().
- The decision how to create a StackFrame is based on the instruction pointer.
If it hit a function for which debug info is available, the respective
DebugInfo::CreateStackFrame() is used, otherwise we fall back to the new
virtual Architecture::CreateStackFrame().
* Adjusted the stack trace view to also show function names (mangled ATM).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31142 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added a virtual Architecture::CreateStackTrace() and added a basic
implementation in ArchitectureX86. Fleshed out StackTrace/StackFrame a bit
and added StackFrameX86. This needs to be organized differently, though, so
that we can get the maximum available information for each stack frame,
depending on what info is available for the respective function.
* Added job to get the stack trace for a thread.
* Added stack trace related handling in TeamDebugger. Reorganized the thread
state/CPU state/stack trace change handling a bit -- we're using a
Team::Listener now, and do things asynchronously.
* Added a StackTraceView to display the stack trace of the current thread. No
function name available yet, otherwise working fine.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31126 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Implemented a job for getting a thread's CPU state.
* The team debugger uses a worker now. ATM only for getting the CPU state for
stopped threads.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31116 a95241bf-73f2-0310-859d-f6bbb57e9c96
about what registers the architecture has and how to get them from the CpuState.
Implemented the respective x86 part.
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DebuggerInterface. This will simplify adding support for remote debugging
eventually.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31100 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added Run/Step* buttons.
* Added some handling for selection in the thread list.
* Extended listener mechanisms all over the place (in models and views).
* The team debugger now gets the initial states for the team's threads.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31097 a95241bf-73f2-0310-859d-f6bbb57e9c96
become a tree view, showing the source files as subitems of the images.
* Added the image list to the team window and changed the layout more towards
what it's intended to look like.
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* Added beginnings of the team window. Currently only showing the thread list
(not updated yet).
* Added application startup code and argument parsing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31073 a95241bf-73f2-0310-859d-f6bbb57e9c96
The skeleton 'hdb' application does nothing usefull beside, as I was trying to get fluent in team_debugger
messages.
That's pretty much all what I came with during a pathetic attempt to secure some free time to work on
a (indeed) most wanted native graphical debugger for Haiku. Building libdwarf was pending when I've realized
I wont have time ever.
Ingo, I hope you don't mind. Fee free to do whatever you want with it, remove included.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31066 a95241bf-73f2-0310-859d-f6bbb57e9c96
of a DWARF 3 reader. It can read the .debug_info section and create objects for
the entries, but most attributes are ignored yet.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31047 a95241bf-73f2-0310-859d-f6bbb57e9c96
