"

jv:libgdbs - GNU Debugger Interface Library

Copyright (C) 2015-now Jan Vrany

"

"{ Package: 'jv:libgdbs' }"

"{ NameSpace: Smalltalk }"

GDBDebuggerObject subclass:#GDBInstructionsAndSourceLine

	instanceVariableNames:'file fullname line line_asm_insn'

	classVariableNames:'SourceCache SourceCacheSize'

	poolDictionaries:''

	category:'GDB-Core'

!

!GDBInstructionsAndSourceLine class methodsFor:'documentation'!

copyright

"

jv:libgdbs - GNU Debugger Interface Library

Copyright (C) 2015-now Jan Vrany

"

! !

!GDBInstructionsAndSourceLine class methodsFor:'initialization'!

initialize

    "Invoked at system start or when the class is dynamically loaded."

    SourceCache := Dictionary new.

    SourceCacheSize := 16

    "Modified (comment): / 30-10-2018 / 19:44:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GDBInstructionsAndSourceLine class methodsFor:'accessing-magritte'!

descriptionContainer

    ^ super descriptionContainer

        define: #line_asm_insn as: Array of: GDBInstruction;

        define: #line as: Integer;

        yourself

    "Created: / 22-06-2018 / 10:58:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 07-08-2018 / 11:49:53 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GDBInstructionsAndSourceLine methodsFor:'accessing'!

address

    line_asm_insn isEmptyOrNil ifTrue:[ ^ -1 ].

    ^ line_asm_insn first address

    "Created: / 03-07-2018 / 14:51:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

file

    "Return filename (path) containing frame's function source."

    | f |

    "/ GDB/MI provides two paths, `file` and `fullname`. 

    "/ 

    "/ However, sometimes GDB gets confused and does not return

    "/ anything directly useful, especially when debug info contains

    "/ relative paths with multiple segments. 

    "/ 

    "/ As a courtesy to the user, in that case try to resolve full

    "/ path here too. Hence the code below.

    "/

    "/ To avoid re-resolving of file each time this method is called,

    "/ cache resolved Filename in `fullname` instvar. 

    fullname isFilename ifTrue:[ 

        "/ Already resolved by the code below

        ^ fullname pathName

    ].

    f := fullname ? file.

    f isNil ifTrue:[ ^ nil ].

    f := f copyReplaceAll: $/ with: Filename separator.

    f := f asFilename.

    "/ check, if GDB returned correctly resolved filename...

    f exists ifTrue:[

        fullname := f.

        ^ fullname pathName

    ].

    "/ ...if not, try to look it up in source directories...

    self debugger directories do:[:d | 

        f := d asFilename / (fullname ? file).

        f exists ifTrue:[ 

            fullname := f.

            ^ fullname pathName.

        ].

    ].

    "/ ...if not found there...

    ^ nil

    "Modified: / 12-03-2018 / 10:32:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 22-03-2018 / 16:52:52 / jv"

!

instructions

    ^ line_asm_insn ? #()

    "Created: / 22-06-2018 / 10:58:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 22-06-2018 / 12:54:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

line

    ^ line

!

source

    "Return the source (as StringCollection !!!!!!) or nil if not available"

    | f s |

    f := self file.

    f isNil ifTrue:[ ^ nil "no file, source not available" ].

    s := SourceCache at: f ifAbsentPut: [ nil ].

    s isNil ifTrue:[

        SourceCache size >= SourceCacheSize ifTrue:[ 

            SourceCache removeKey: (SourceCache keys anElement)

        ].

        SourceCache at: f put: f asFilename contents withTabsExpanded

    ].

    ^ s

    "Created: / 07-08-2018 / 11:32:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 30-10-2018 / 19:47:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GDBInstructionsAndSourceLine methodsFor:'enumerating'!

instructionsDo: aBlock

    line_asm_insn ? #() do: aBlock

    "Created: / 16-08-2018 / 11:31:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GDBInstructionsAndSourceLine methodsFor:'initialization & release'!

setArchitecture: aGDBArchitecture

    self instructions do:[:e | e setArchitecture: aGDBArchitecture ]

    "Created: / 16-08-2018 / 09:39:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

setDebugger: aGDBDebugger

    super setDebugger: aGDBDebugger.

    self instructions do:[:e | e setDebugger: aGDBDebugger ]

    "Created: / 16-08-2018 / 09:33:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GDBInstructionsAndSourceLine methodsFor:'testing'!

isBranch

    ^ false

    "Created: / 03-07-2018 / 14:39:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

isReturn

    ^ false

    "Created: / 03-07-2018 / 14:39:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GDBInstructionsAndSourceLine class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'

! !

GDBInstructionsAndSourceLine initialize!