V]c@sdZddlmZddlZddlZddlZddlZejddkrneZ e Z e Z ndZdZdZd Zd ZdadZdZdZdZdZdZdZdZdZdZdZej Z!dZ"de#fdYZ$dZ%dZ&ejddkr<dZ'n dZ'y ej(Z)Wne*k rndZ)nXde#fd YZ+d!e,fd"YZ-d#e,fd$YZ.d%e.fd&YZ/d'e,fd(YZ0d)Z1d*e,fd+YZ2d,Z3de3_4d-e.fd.YZ5d/e6fd0YZ7d1e.fd2YZ8d3e.fd4YZ9d5e,fd6YZ:d7e,fd8YZ;d9e.fd:YZ<d;e.fd<YZ=d=e.fd>YZ>d?e.fd@YZ?dAe.fdBYZ@dCe@fdDYZAdEe.fdFYZBdGe.fdHYZCdIe.fdJYZDdKe.fdLYZEdMeEfdNYZFdOe.fdPYZGdQe.fdRYZHdSZIejJdTkre ZKn dUZKdVe.fdWYZLdXe.fdYYZMdZZNd[ZOd\dd]YZPd^ZQd_ZReRejSd`e,fdaYZTdbejUfdcYZVeVddZWdeejUfdfYZXdgejUfdhYZYeZejTdireXeYndjejUfdkYZ[e[dlejUfdmYZ\e\dnejUfdoYZ]e]dpejUfdqYZ^e^ddl_Z_ddl`Z`ddlaZaddlbZbddlcZcdre^fdsYZdeddtduejefdvYZfefdwdxeffdyYZgegdzd{ejUfd|YZhehd}ejiejjd~e,fdYZkeleldZmejmZneme_mekZodZpeldZqdZrdZsdejUfdYZtde,fdYZudeufdYZvde,fdYZwdetewfdYZxdexfdYZydetfdYZzdetfdYZ{detfdYZ|dZ}dZ~dZde,fdYZdefdYZdejUfdYZdZdejUfdYZejmdeZedrexdevZeydevZerezdevZe{devZe|devZeddZedejejjZn e`jddS(s- From gdb 7 onwards, gdb's build can be configured --with-python, allowing gdb to be extended with Python code e.g. for library-specific data visualizations, such as for the C++ STL types. Documentation on this API can be seen at: http://sourceware.org/gdb/current/onlinedocs/gdb/Python-API.html This python module deals with the case when the process being debugged (the "inferior process" in gdb parlance) is itself python, or more specifically, linked against libpython. In this situation, almost every item of data is a (PyObject*), and having the debugger merely print their addresses is not very enlightening. This module embeds knowledge about the implementation details of libpython so that we can emit useful visualizations e.g. a string, a list, a dict, a frame giving file/line information and the state of local variables In particular, given a gdb.Value corresponding to a PyObject* in the inferior process, we can generate a "proxy value" within the gdb process. For example, given a PyObject* in the inferior process that is in fact a PyListObject* holding three PyObject* that turn out to be PyBytesObject* instances, we can generate a proxy value within the gdb process that is a list of bytes instances: [b"foo", b"bar", b"baz"] Doing so can be expensive for complicated graphs of objects, and could take some time, so we also have a "write_repr" method that writes a representation of the data to a file-like object. This allows us to stop the traversal by having the file-like object raise an exception if it gets too much data. With both "proxyval" and "write_repr" we keep track of the set of all addresses visited so far in the traversal, to avoid infinite recursion due to cycles in the graph of object references. We try to defer gdb.lookup_type() invocations for python types until as late as possible: for a dynamically linked python binary, when the process starts in the debugger, the libpython.so hasn't been dynamically loaded yet, so none of the type names are known to the debugger The module also extends gdb with some python-specific commands. i(tprint_functionNiicCstjdjS(Ntchar(tgdbt lookup_typetpointer(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt_type_char_ptrDscCstjdjS(Ns unsigned char(RRR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt_type_unsigned_char_ptrHscCstjdjS(Nsunsigned short(RRR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt_type_unsigned_short_ptrLscCstjdjS(Ns unsigned int(RRR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt_type_unsigned_int_ptrPscCstjdjjS(Ntvoid(RRRtsizeof(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt_sizeof_void_pTsii iiiiiiiiit0123456789abcdeft_PyEval_EvalFrameDefaulttNullPyObjectPtrcBseZRS((t__name__t __module__(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRnscCs t|dS(Ni(tmin(tval((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt safety_limitrscCsttt|S(N(txrangeRtint(R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt safe_rangeyscCs|j|dS(N(twrite(tfilettext((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt write_unicodescCs5t|tr$|jtd}n|j|dS(Ntbackslashreplace(t isinstancetunicodetencodetENCODINGR(RR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRscCst|ts|Stj}|dkr8|j|Sg}xe|D]]}dt|kohdknrtt|d}n|j|}|j|qEWdj|S(Ntmbcsiiit( RRtsystgetfilesystemencodingRtordtchrtappendtjoin(tfilenametencodingtencodedRtbyte((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt os_fsencodes    "tStringTruncatedcBseZRS((RR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR-stTruncatedStringIOcBs,eZdZddZdZdZRS(s^Similar to io.StringIO, but can truncate the output by raising a StringTruncated exceptioncCsd|_||_dS(NR!(t_valtmaxlen(tselfR0((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt__init__s cCss|jr`t|t|j|jkr`|j|d|jt|j!7_tq`n|j|7_dS(Ni(R0tlenR/R-(R1tdata((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRs  "&cCs|jS(N(R/(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytgetvaluesN(RRt__doc__tNoneR2RR5(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR.s  t PyObjectPtrcBseZdZdZddZdZdZdZdZ dZ dZ d Z d Z d Zd Zed ZedZedZdZRS(sk Class wrapping a gdb.Value that's either a (PyObject*) within the inferior process, or some subclass pointer e.g. (PyBytesObject*) There will be a subclass for every refined PyObject type that we care about. Note that at every stage the underlying pointer could be NULL, point to corrupt data, etc; this is the debugger, after all. tPyObjectcCs(|r|j||_n ||_dS(N(tcastt_gdbval(R1tgdbvaltcast_to((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR2scCs|jrt|n|dkrM|jjtj}|j|S|dkr|jjtj}|j|S|jj|S(s Get the gdb.Value for the given field within the PyObject, coping with some python 2 versus python 3 differences. Various libpython types are defined using the "PyObject_HEAD" and "PyObject_VAR_HEAD" macros. In Python 2, this these are defined so that "ob_type" and (for a var object) "ob_size" are fields of the type in question. In Python 3, this is defined as an embedded PyVarObject type thus: PyVarObject ob_base; so that the "ob_size" field is located insize the "ob_base" field, and the "ob_type" is most easily accessed by casting back to a (PyObject*). tob_typetob_size(tis_nullRR;R:R8t get_gdb_typet dereferencetPyVarObjectPtr(R1tnametpyo_ptr((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytfields   cCstj|j|S(s Get a PyObjectPtr for the given PyObject* field within this PyObject, coping with some python 2 versus python 3 differences. 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See e.g. https://bugzilla.redhat.com/show_bug.cgi?id=556975 with PyEval_EvalFrameEx's "f" (R;tis_optimized_out(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRS s cCsGy|jjdjSWn#tk r1dStk rBdSXdS(Nttp_nametunknown(RQRFtstringRt RuntimeError(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt safe_tp_names   cCs2dtfdY}||jt|jS(si Scrape a value from the inferior process, and try to represent it within the gdb process, whilst (hopefully) avoiding crashes when the remote data is corrupt. Derived classes will override this. For example, a PyIntObject* with ob_ival 42 in the inferior process should result in an int(42) in this process. visited: a set of all gdb.Value pyobject pointers already visited whilst generating this value (to guard against infinite recursion when visiting object graphs with loops). Analogous to Py_ReprEnter and Py_ReprLeave tFakeReprcBs eZdZdZdZRS(s Class representing a non-descript PyObject* value in the inferior process for when we don't have a custom scraper, intended to have a sane repr(). cSs||_||_dS(N(RTtaddress(R1RTRZ((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR27s cSs'|jdkrdSd|j|jfS(Nit0x0s<%s at remote 0x%x>(RZRT(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt__repr__;s(RRR6R2R\(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRY0s (tobjectRXRRR;(R1RKRY((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytproxyvals cCs|jt|j|S(s Write a string representation of the value scraped from the inferior process to "out", a file-like object. 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Examples: Break on any function or method named 'func' in module 'modname' py-break modname.func Break on any function or method named 'func' py-break func cCsVd|kr7|jd\}}}d||f}n d|}tjd|dS(Nt.s+$pyname_equals("%s") && $pymod_equals("%s")s$pyname_equals("%s")sbreak PyEval_EvalFrameEx if (t rpartitionRtexecute(R1RRRtdottcond((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRs    (RRR6R(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRs spy-breakt _LoggingStatecBs2eZdZdZdZdZdZRS(sI State that helps to provide a reentrant gdb.execute() function. cCsQtjd}||_|j|_|j|_td|jg|_dS(Nsr+sset logging file %s( ttempfiletNamedTemporaryFileRRDR(tfilenotfdt_executetfile_position_stack(R1R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR2s   cCsM|js*tdtdtdn|jjtj|jj|S(Nsset logging redirect onsset logging onsset pagination off(RRR&RtfstatRtst_size(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt __enter__s     cCs4tj|jj|jd|jj}|S(Ni(RtflushRtseekRtread(R1R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt getoutputs cCsZ|jj}|jj||jj|jsVtdtdtdndS(Nsset logging offsset logging redirect offsset pagination on(RtpopRRttruncateR(R1texc_typetexc_valttbtstartpos((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt__exit__s    (RRR6R2RRR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRs   cCs@|r/t}t|||jSWdQXn t||dS(s Replace gdb.execute() with this function and have it accept a 'to_string' argument (new in 7.2). Have it properly capture stderr also. Ensure reentrancy. N(t_logging_stateRR(RRRgRB((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR s   cCs\tjdStj}x;tjD]-}x$|jD]}||kr:|Sq:Wq'WdS(s. Return the selected inferior in gdb. iN(Rt inferiorstselected_threadtthreads(Rtinferiortthread((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytget_selected_inferiors   cCsctj\}}tj|d}|j||jtjd|d|tj|dS(s Source a gdb script with script_contents passed as a string. This is useful to provide defines for py-step and py-next to make them repeatable (this is not possible with gdb.execute()). See http://sourceware.org/bugzilla/show_bug.cgi?id=12216 tws source %sRgN( RtmkstempRtfdopenRtcloseRRtremove(tscript_contentsRgRR(R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytsource_gdb_script,s   cCs'ttjdtjtjfdS(Ns define py-step -py-step end define py-next -py-next end document py-step %s end document py-next %s end (RttextwraptdedenttPyStepR6tPyNext(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytregister_defines;s cCs-d}x |r(|j}|d7}q W|S(s$Tells the stackdepth of a gdb frame.ii(Rq(Rdtdepth((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt stackdepthOs   tExecutionControlCommandBasecBs}eZdZdZdZdZdZdZdZdZ dZ d Z d d Z d Z d ZRS(s Superclass for language specific execution control. Language specific features should be implemented by lang_info using the LanguageInfo interface. 'name' is the name of the command. cCs/tt|j|tjtj||_dS(N(tsuperRR2RtCOMMAND_RUNNINGRt lang_info(R1RDR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR2`sccsltj|jj|jj}xA|D]9}tjd|dt}tj d|j dVq+WdS(Nsbreak %sRgsBreakpoint (\d+)i( t itertoolstchainRtstatic_break_functionstruntime_break_functionsRRRRtsearchR(R1t all_locationstlocationR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytinstall_breakpointses   cCs&x|D]}tjd|qWdS(Ns delete %s(RR(R1tbreakpoint_listtbp((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytdelete_breakpointsns cstj}d|tjBfd d|fg}d|fd|fg}fd}tjdtj}|rd |jd }nd }|||||fS( Ns^Program received signal .*s.*[Ww]arning.*is^Program exited .*s^(Old|New) value = .*s^\d+: \w+ = .*cs`g}xJ|D]B\}}x3tj||D]}|j|jdq/Wq Wdj|S(Nis (RtfinditerR&RR'(tregexestoutputtregextflagsR(R(s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt filter_outputs s^Value returned is \$\d+ = (.*)sValue returned: %s iR!(s.*[Ww]arning.*i(Rt MULTILINEtDOTALLRR(R1Rtreflagstoutput_on_haltt output_alwaysRt match_finisht finish_output((Rs8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRrs     cCstjdkS(Ni(Rtpid(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytstoppedscCs|j|\}}|jr8t|t|ntj}|jj|}|jj|r|jj|}|rt|qn|r|j rt|j nt|n t|dS(s After doing some kind of code running in the inferior, print the line of source code or the result of the last executed gdb command (passed in as the `result` argument). N( RRRuRRRtget_source_linetis_relevant_functiontexc_infotrstrip(R1RRRRdt source_linetraised_exception((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytfinish_executings      cCsBtjjdk r+tjddtStjddtSdS(sd Execute until the function returns (or until something else makes it stop) tfinishRgtcontN(RRRqR7RR(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt_finishscCsx{tr}|j}ytj}Wntk r9PnXtjd|}|jj|}|sv|sv|j rPqqW|S(sJ Execute until the function returns to a relevant caller. sBreakpoint (\d+)( RR&RRRWRRRRR(R1RRdthitbpt is_relevant((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt _finish_frames   cGs|j}|j|dS(sImplements the finish command.N(R)R#(R1RR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR$s tnextcCs|rt|j}ntj}|jj|rc|jj|}|sct|}qcn|}x:tr|jj|rtj |dt}n |j }|j rPntj}|jj|} y|j } Wnt k rd} nXtjd|} | r:| r:| jd|kr:Pq:n||krz|smt|} | |kog| } n| rPqql|jj|} | rl| |krlPqlqlW|r|j|n|j|dS(s Do a single step or step-over. Returns the result of the last gdb command that made execution stop. This implementation, for stepping, sets (conditional) breakpoints for all functions that are deemed relevant. It then does a step over until either something halts execution, or until the next line is reached. If, however, stepover_command is given, it should be a string gdb command that continues execution in some way. The idea is that the caller has set a (conditional) breakpoint or watchpoint that can work more efficiently than the step-over loop. For Python this means setting a watchpoint for f->f_lasti, which means we can then subsequently "finish" frames. We want f->f_lasti instead of f->f_lineno, because the latter only works properly with local trace functions, see PyFrameObjectPtr.current_line_num and PyFrameObjectPtr.addr2line. RgsBreakpoint (\d+)iN(tlistR RRRRRRRRR)RRDRWR7RRRR R#(R1tstepintotstepover_commandR t beginframet beginlineRtnewframeRRt framenameRtnewdepthR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytstepsJ           cCs$|jtjd|dtdS(Nsrun Rg(R#RRR(R1RR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytrun( scGs |jtjddtdS(NR%Rg(R#RRR(R1R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR%+ s(RRR6R2R R RRR#R&R)R$R3R4R%(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRYs   #     S t LanguageInfocBs eZdZdZdZRS(s This class defines the interface that ExecutionControlCommandBase needs to provide language-specific execution control. Classes that implement this interface should implement: lineno(frame) Tells the current line number (only called for a relevant frame). If lineno is a false value it is not checked for a difference. is_relevant_function(frame) tells whether we care about frame 'frame' get_source_line(frame) get the line of source code for the current line (only called for a relevant frame). If the source code cannot be retrieved this function should return None exc_info(frame) -- optional tells whether an exception was raised, if so, it should return a string representation of the exception value, None otherwise. static_break_functions() returns an iterable of function names that are considered relevant and should halt step-into execution. This is needed to provide a performing step-into runtime_break_functions() -- optional list of functions that we should break into depending on the context cCsdS(sSee this class' docstring.N((R1Rd((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRP R!cCsdS(sc Implement this if the list of step-into functions depends on the context. (((R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRS s(RRR6RR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR5/ s t PythonInfocBs>eZdZdZdZdZdZdZRS(cCs/t|j}|r|StjddS(NsuUnable to find the Python frame, run your code with a debug build (configure with --with-pydebug or compile with -g).(RnRRRW(R1RdR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR] s cCs|j|jS(N(RR (R1Rd((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRf scCst|jS(N(RnR(R1Rd((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRi scCsLy3|j|}d|j|jjfSWntk rGdSXdS(Ns %4d %s(RR RR R R7(R1RdR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRl s   cCsnyP|jdj}tjdrO|d}|d}|rOd|fSnWnttfk rinXdS(Nttstateststate->frame == ft curexc_typet curexc_valuesAn exception was raised: %s(RRBRtparse_and_evalRRW(R1RdR7tinf_typet inf_value((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRt s  ccs dVdS(NtPyEval_EvalFrameEx((R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR s(RRRRRRRR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR6[ s     tPythonStepperMixincBseZdZdZRS(sr Make this a mixin so CyStep can also inherit from this and use a CythonCodeStepper at the same time. cCsatjddt}ttjd|jd}|jd|ddtjd|d S( sq Set a watchpoint on the Python bytecode instruction pointer and try to finish the frame swatch f->f_lastiRgs[Ww]atchpoint (\d+):iR,R-R$s delete %sN(RRRRRRRR3(R1R,Rt watchpoint((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt python_step s!(RRR6R@(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR> sRcBseZdZeZdZRS(sStep through Python code.cCs|jd|jdS(NR,(R@R,(R1RR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR s(RRR6RR,R(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR sRcBseZdZeZRS(sStep-over Python code.(RRR6RR,(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR stPyFinishcBseZdZejZRS(s+Execute until function returns to a caller.(RRR6RR$R(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRA stPyRuncBseZdZejZRS(sRun the program.(RRR6RR4R(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRB stPyContcBseZejZRS((RRRR%R(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRC scCs*|jdk rt|jSt|SdS(sb Return the value of the pointer as a Python int. gdbval.type must be a pointer type N(RZR7R(R<((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt _pointervalue s cCsFt|}y"|dkr-tjdnWntk rAnX|S(Nis:Negative pointer value, presumably a bug in gdb, aborting.(RDRtGdbErrorRW(R<R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt pointervalue s   cCsWytjdWn;tk rNytjdWntk rFdSXdSnXdSdS(NtPyUnicode_FromEncodedObjecttPyUnicodeUCS2_FromEncodedObjecttUCS4tUCS2R!(RR:RW(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytget_inferior_unicode_postfix s  tPythonCodeExecutorcBs_eZdZdZdZdZdZdZdZdZ dZ d d d Z RS( iiicCsAtjd|}t|}|dkr=tjdn|S(Ns(void *) malloc((size_t) %d)is-No memory could be allocated in the inferior.(RR:RFRE(R1RtchunkR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytmalloc s   cCs,|jt|}tj|||S(N(RNR3Rt write_memory(R1RVR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt alloc_string scCs|j|}d}ytj|Wn!tk rIdtf}nXz&tjd||t|f}Wd|j|Xt|}|dkrtjdn|S(NtPyString_FromStringAndSizesPyUnicode%s_FromStringAndSizes)(PyObject *) %s((char *) %d, (size_t) %d)is1Unable to allocate Python string in the inferior.( RPRR:RWRKR3tfreeRFRE(R1RVtstringpRQRR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytalloc_pystring s    cCstjd|dS(Nsfree((void *) %d)(RR:(R1R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRR scCstjd|dS(sAIncrement the reference count of a Python object in the inferior.sPy_IncRef((PyObject *) %d)N(RR:(R1R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytincref scCstjd|dS(sADecrement the reference count of a Python object in the inferior.sPy_DecRef((PyObject *) %d)N(RR:(R1R((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytxdecref sc Csd|krtjdn|d7}|j|}t|}t|}|dksg|dkrytjdndtd|d|d|d |}t)ztj|}Wd |j|XWd QX|S( sH Evaluate python code `code` given as a string in the inferior and return the result as a gdb.Value. Returns a new reference in the inferior. Of course, executing any code in the inferior may be dangerous and may leave the debuggee in an unsafe state or terminate it altogether. ssString contains NUL byte.is-Unable to obtain or create locals or globals.s PyRun_String( (char *) %(code)d, (int) %(start)d, (PyObject *) %(globals)s, (PyObject *) %(locals)d) RWRtglobalstlocalsN(RRERPRFRtFetchAndRestoreErrorR:RR( R1RWt input_typet global_dictt local_dictRtglobalsptlocalsptpyobject_return_value((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytevalcode s     N( RRtPy_single_inputt Py_file_inputt Py_eval_inputRNRPRTRRRURVR7R`(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRL s     RYcBs)eZdZdZdZdZRS(sg Context manager that fetches the error indicator in the inferior and restores it on exit. cCswtjdjj|_|j|jd|_|j}|j|j}|j|jd}|||f|_dS(NR9ii(RRRR tsizeof_PyObjectPtrRNterrstate(R1RQRt traceback((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR2L s  cCstjd|jdS(NsPyErr_Fetch(%d, %d, %d)(RR:Re(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRV scGsUtjdrtjdnd}ztj||jWd|j|jXdS(Ns(int) PyErr_Occurred()s PyErr_Print()sAPyErr_Restore((PyObject *) *%d,(PyObject *) *%d,(PyObject *) *%d)(RR:ReRRR(R1Rt pyerr_restore((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRY s (RRR6R2RR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRYF s t FixGdbCommandcBs#eZdZdZdZRS(cCs/tt|j|tjtj||_dS(N(RRhR2RRRtactual_command(R1RRi((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR2j s cCsTtjddttjtyttjddkWnt k rOnXdS(s It seems that invoking either 'cy exec' and 'py-exec' work perfectly fine, but after this gdb's python API is entirely broken. Maybe some uncleared exception value is still set? sys.exc_clear() didn't help. A demonstration: (gdb) cy exec 'hello' 'hello' (gdb) python gdb.execute('cont') RuntimeError: Cannot convert value to int. Error while executing Python code. (gdb) python gdb.execute('cont') [15148 refs] Program exited normally. tignores.*s (void *) 0iN( RtfilterwarningstRuntimeWarningRtescapeRRRR:RW(R1((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytfix_gdbo s  cCsa|jytjd|j|fWn(tk rR}tjt|nX|jdS(Ns%s %s(RnRRRiRWRER'(R1RRte((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR s  (RRR2RnR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRhh s  cCsjtjd}tjd}t|dksBt|dkrTtjdn|j||||S(s= Execute Python code in the most recent stack frame. sPyEval_GetGlobals()sPyEval_GetLocals()isiUnable to find the locals or globals of the most recent Python function (relative to the selected frame).(RR:RFRER`(texecutorRWRZR[R\((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt_evalcode_python s $tPyExeccBseZdZdZRS(cCs|r|tjfSg}xRtrmytd}Wntk rFPqX|jdkr]Pn|j|qWdj|tjfSdS(NRRs ( RLRaRtinputtEOFErrorR R&R'Rb(R1texprtlinesR((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pytreadcode s   cCs>|j|\}}t}|jt||ttdS(N(RwRLRVRqR[R\(R1RuRRZRp((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyR s (RRRwR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyRr s sset breakpoint pending onREs-py-steps-py-nexts py-finishspy-runspy-contspy-execs-py-execs1Use gdb 7.2 or higher to use the py-exec command.iiiiiii i@I((R6t __future__RRRtlocaleR"t version_infoR%R8trangeRRRRRRRRR R7RKRnRpRrRtRvRxRzR|tPy_TPFLAGS_TYPE_SUBCLASSReR,tgetpreferredencodingRR|RWRRRRtfsencodeR,tAttributeErrorR-R]R.R8RCRRRRRRot ExceptionRR}RhRRRlRR{RsRqRgRiRjRkRwR.RuRPR7RXR<RyRmRRcRdRjRmtcurrent_objfileRnRRRRRRtRRRRRRRRRRtFunctionRRRRRRRRRRRRRRRR5R6R>RRRARBRCRDRFRKRLRYRhRqRrtpy_steptpy_nextt py_finishtpy_runtpy_conttpy_execRt_py_execR(((s8lib/python2.7/site-packages/Cython/Debugger/libpython.pyt0s"                    B S!-  >,$   #    K     $        &       ,+    d")