diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-2.6.1/Misc/gdbinit --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-2.6.1/Misc/gdbinit Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,140 @@ +# -*- ksh -*- +# +# If you use the GNU debugger gdb to debug the Python C runtime, you +# might find some of the following commands useful. Copy this to your +# ~/.gdbinit file and it'll get loaded into gdb automatically when you +# start it up. Then, at the gdb prompt you can do things like: +# +# (gdb) pyo apyobjectptr +# +# refcounts: 1 +# address : 84a7a2c +# $1 = void +# (gdb) + +# Prints a representation of the object to stderr, along with the +# number of reference counts it current has and the hex address the +# object is allocated at. The argument must be a PyObject* +define pyo +print _PyObject_Dump($arg0) +end + +# Prints a representation of the object to stderr, along with the +# number of reference counts it current has and the hex address the +# object is allocated at. The argument must be a PyGC_Head* +define pyg +print _PyGC_Dump($arg0) +end + +# print the local variables of the current frame +define pylocals + set $_i = 0 + while $_i < f->f_nlocals + if f->f_localsplus + $_i != 0 + set $_names = co->co_varnames + set $_name = PyString_AsString(PyTuple_GetItem($_names, $_i)) + printf "%s:\n", $_name + # side effect of calling _PyObject_Dump is to dump the object's + # info - assigning just prevents gdb from printing the + # NULL return value + set $_val = _PyObject_Dump(f->f_localsplus[$_i]) + end + set $_i = $_i + 1 + end +end + +# A rewrite of the Python interpreter's line number calculator in GDB's +# command language +define lineno + set $__continue = 1 + set $__co = f->f_code + set $__lasti = f->f_lasti + set $__sz = ((PyStringObject *)$__co->co_lnotab)->ob_size/2 + set $__p = (unsigned char *)((PyStringObject *)$__co->co_lnotab)->ob_sval + set $__li = $__co->co_firstlineno + set $__ad = 0 + while ($__sz-1 >= 0 && $__continue) + set $__sz = $__sz - 1 + set $__ad = $__ad + *$__p + set $__p = $__p + 1 + if ($__ad > $__lasti) + set $__continue = 0 + end + set $__li = $__li + *$__p + set $__p = $__p + 1 + end + printf "%d", $__li +end + +# print the current frame - verbose +define pyframev + pyframe + pylocals +end + +define pyframe + set $__fn = (char *)((PyStringObject *)co->co_filename)->ob_sval + set $__n = (char *)((PyStringObject *)co->co_name)->ob_sval + printf "%s (", $__fn + lineno + printf "): %s\n", $__n +### Uncomment these lines when using from within Emacs/XEmacs so it will +### automatically track/display the current Python source line +# printf "%c%c%s:", 032, 032, $__fn +# lineno +# printf ":1\n" +end + +### Use these at your own risk. It appears that a bug in gdb causes it +### to crash in certain circumstances. + +#define up +# up-silently 1 +# printframe +#end + +#define down +# down-silently 1 +# printframe +#end + +define printframe + if $pc > PyEval_EvalFrameEx && $pc < PyEval_EvalCodeEx + pyframe + else + frame + end +end + +# Here's a somewhat fragile way to print the entire Python stack from gdb. +# It's fragile because the tests for the value of $pc depend on the layout +# of specific functions in the C source code. + +# Explanation of while and if tests: We want to pop up the stack until we +# land in Py_Main (this is probably an incorrect assumption in an embedded +# interpreter, but the test can be extended by an interested party). If +# Py_Main <= $pc <= Py_GetArgcArv is true, $pc is in Py_Main(), so the while +# tests succeeds as long as it's not true. In a similar fashion the if +# statement tests to see if we are in PyEval_EvalFrame(). + +# print the entire Python call stack +define pystack + while $pc < Py_Main || $pc > Py_GetArgcArgv + if $pc > PyEval_EvalFrame && $pc < PyEval_EvalCodeEx + pyframe + end + up-silently 1 + end + select-frame 0 +end + +# print the entire Python call stack - verbose mode +define pystackv + while $pc < Py_Main || $pc > Py_GetArgcArgv + if $pc > PyEval_EvalFrame && $pc < PyEval_EvalCodeEx + pyframev + end + up-silently 1 + end + select-frame 0 +end