From 786ea6bc23c26a0ec98d5cbc80633615f9fa8cb1 Mon Sep 17 00:00:00 2001 From: Skip Montanaro Date: Mon, 1 Mar 2004 15:44:05 +0000 Subject: Add pystack definition to Misc/gdbinit with some explanation of its behavior and add flag comments to ceval.c and main.c alerting people to the coupling between pystack and the layout of those files. --- Misc/gdbinit | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'Misc/gdbinit') diff --git a/Misc/gdbinit b/Misc/gdbinit index 05f6a9151c..4790adae54 100644 --- a/Misc/gdbinit +++ b/Misc/gdbinit @@ -34,3 +34,26 @@ x/s ((PyStringObject*)f->f_code->co_filename)->ob_sval x/s ((PyStringObject*)f->f_code->co_name)->ob_sval p f->f_lineno 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 eval_frame(). + +define pystack + while $pc < Py_Main || $pc > Py_GetArgcArgv + if $pc > eval_frame && $pc < PyEval_EvalCodeEx + set $__fn = PyString_AsString(co->co_filename) + set $__n = PyString_AsString(co->co_name) + printf "%s (%d): %s\n", $__fn, f->f_lineno, $__n + end + up-silently 1 + end + select-frame 0 +end -- cgit v1.2.1