extensions.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 08 Jul 2019 13:31:11 +0100
changeset 178 5d1c3e5fab6b
parent 177 fd154978bab5
child 186 8110a5e2c704
permissions -rw-r--r--
Initial support for VDB python-based variable objects Due to a limitation of GDB itself, one cannot create variable object for "synthetic" argument/local created by custom frame decorator. Therefore one cannot "dig deeper" and inspect contents of such a variable in case it is a kind of composite - like an object on a heap referring to another objects. This is a problem when a debugee is does not have debug information and / or it's language is not C - such as when debugging JITed code. This (experimental) commit adds a parallel implementation of variable objects done completely in python. This new varobj MI interface is a super-set of GDB's builtin varobj MI interface.
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"{ Package: 'jv:vdb' }"!
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!GDBDebugger methodsFor:'event handling'!
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onRRExitEvent:anRRExitEvent
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    | status |
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    anRRExitEvent rr announcer unsubscribe: self.
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    status := anRRExitEvent status.
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    (status success or:[ status status == #signal and:[status code == OperatingSystem sigTERM ]]) ifFalse:[ 
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        Dialog warn: (self class classResources string: 'Replay server terminated with error')
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    ].
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    "Created: / 31-07-2018 / 09:37:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'commands - API'!
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pythonImportVDB
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    "Import VDB support"
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    | pythonDir |
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    pythonDir := (Smalltalk getPackageDirectoryForPackage: #jv:vdb) / 'python'.
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    self assert: pythonDir isDirectory.
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    self pythonSysPathAppend: pythonDir.
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    self pythonImport: 'vdb'
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    "Created: / 08-07-2019 / 11:44:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'commands - API'!
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targetConnectRR: rr
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    "Connect to rr replay server"
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    "/ rr suggest to connect as follows:
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    "/ 
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    "/     gdb '-l' '10000' '-ex' 'set sysroot /' '-ex' 'target extended-remote 127.0.0.1:9876' ...
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    "/
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    self send: (GDBMI_gdb_set arguments: #('sysroot' '/')).
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    self targetConnect: 'extended-remote'  parameters: (Array with: '127.0.0.1:' with: rr port).
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    rr announcer when: RRExitEvent send: #onRRExitEvent: to: self.
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    "Created: / 26-07-2018 / 21:48:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 31-07-2018 / 09:38:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBVariableObject methodsFor:'inspecting'!
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inspector2TabVariable
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    <inspector2Tab>
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    | varObjApp |
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    varObjApp := Smalltalk at: #VDBVariableObjectListApplication ifAbsent:[ ^ nil ].
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    ^ (self newInspector2Tab)
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        label:'Variable';
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        priority:95;
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        "/ view: [ ... ];
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        application: [ varObjApp new debugger: debugger; variableObjectList: (Array with: self); yourself ];
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        "/ text: [ ... ];
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        yourself
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    "Modified: / 03-02-2018 / 09:58:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!jv_vdb class methodsFor:'documentation'!
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extensionsVersion_HG
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    ^ '$Changeset: <not expanded> $'
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! !