Add helper functions for creating return value variables.

Introduce a flag in ExpressionEvaluationContext in order to distinguish between
cases where no object pointer is available vs the object pointer being present
but NULL, which would previously not be pushed onto the stack, leading to
expression evaluation failures.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42274 a95241bf-73f2-0310-859d-f6bbb57e9c96

Replaced uses of obsolescent BReference[able] API.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39869 a95241bf-73f2-0310-859d-f6bbb57e9c96

When computing absolute addresses, take the image relocation
delta into account. Fixes retrieving the addresses and
consequently values of static variables.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39407 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the data location resolution methods from StackFrameDebugInfo to the
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.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33495 a95241bf-73f2-0310-859d-f6bbb57e9c96

* WIP regarding non comilation unit local types:
- 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).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33477 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ArrayIndexPath::SetTo(): Changed return type from bool to status_t.
* Finished support for retrieving and displaying array element values.
* Added work-around for pointer types, if the base type isn't specified in the
debug info (as it should per specification).
* Added support for unspecified types, function types, and pointer to member
types. All types relevant for C++ should be supported now. There are still
quite a few TODOs, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33434 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed typos in comparisons.
* Some more output on error.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33394 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ValueLocation:
- Changed the bit{Offset,Size} semantics. It's now more or less
aligned with the semantics of the respective DWARF DIE attributes.
DwarfStackFrameDebugInfo does now correctly translate the ValueLocations
returned by the DWARF layer (the bit piece location expression semantics is
different for some reason).
- ValueLocation is now aware of the target's endianess. The SetTo() method
needs that information to correctly meddle with the pieces.
- Support normalizing the pieces.
* Fixed retrieving the values of bit fields in various places. We still don't
handle the bit offset/size attributes of types correctly, but I haven't seen
those in actual debug info yet.
* Added support for enumerations. The variable view shows the enumerator names,
when available.
* Added partial support for subrange types. C++ doesn't have those -- we only
need them for array dimensions.
* Started adding support for array types. Still work in progress.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33314 a95241bf-73f2-0310-859d-f6bbb57e9c96

* More work on retrieving local variable values. Address and compound types can
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.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33217 a95241bf-73f2-0310-859d-f6bbb57e9c96

Introduce a flag in ExpressionEvaluationContext in order to distinguish between
cases where no object pointer is available vs the object pointer being present
but NULL, which would previously not be pushed onto the stack, leading to
expression evaluation failures.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42274 a95241bf-73f2-0310-859d-f6bbb57e9c96

Replaced uses of obsolescent BReference[able] API.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39869 a95241bf-73f2-0310-859d-f6bbb57e9c96

When computing absolute addresses, take the image relocation
delta into account. Fixes retrieving the addresses and
consequently values of static variables.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39407 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved the data location resolution methods from StackFrameDebugInfo to the
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.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33495 a95241bf-73f2-0310-859d-f6bbb57e9c96

* WIP regarding non comilation unit local types:
- 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).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33477 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ArrayIndexPath::SetTo(): Changed return type from bool to status_t.
* Finished support for retrieving and displaying array element values.
* Added work-around for pointer types, if the base type isn't specified in the
debug info (as it should per specification).
* Added support for unspecified types, function types, and pointer to member
types. All types relevant for C++ should be supported now. There are still
quite a few TODOs, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33434 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Fixed typos in comparisons.
* Some more output on error.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33394 a95241bf-73f2-0310-859d-f6bbb57e9c96

* ValueLocation:
- Changed the bit{Offset,Size} semantics. It's now more or less
aligned with the semantics of the respective DWARF DIE attributes.
DwarfStackFrameDebugInfo does now correctly translate the ValueLocations
returned by the DWARF layer (the bit piece location expression semantics is
different for some reason).
- ValueLocation is now aware of the target's endianess. The SetTo() method
needs that information to correctly meddle with the pieces.
- Support normalizing the pieces.
* Fixed retrieving the values of bit fields in various places. We still don't
handle the bit offset/size attributes of types correctly, but I haven't seen
those in actual debug info yet.
* Added support for enumerations. The variable view shows the enumerator names,
when available.
* Added partial support for subrange types. C++ doesn't have those -- we only
need them for array dimensions.
* Started adding support for array types. Still work in progress.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33314 a95241bf-73f2-0310-859d-f6bbb57e9c96

* More work on retrieving local variable values. Address and compound types can
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.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33217 a95241bf-73f2-0310-859d-f6bbb57e9c96