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| author | Skip Montanaro <skip@pobox.com> | 2005-01-08 21:56:43 (GMT) |
|---|---|---|
| committer | Skip Montanaro <skip@pobox.com> | 2005-01-08 21:56:43 (GMT) |
| commit | afd77d980ea68f7286ce6002e4b0c22d28ca8d6f (patch) | |
| tree | 5e4cabd07e62fa4c4206e86e0a5a0173cd93b711 /Misc/gdbinit | |
| parent | 9ddb3005986dae244935c670cdd58cc08b09f752 (diff) | |
| download | cpython-afd77d980ea68f7286ce6002e4b0c22d28ca8d6f.zip cpython-afd77d980ea68f7286ce6002e4b0c22d28ca8d6f.tar.gz cpython-afd77d980ea68f7286ce6002e4b0c22d28ca8d6f.tar.bz2 | |
Add definitions for "up" and "down" commands that print/display the current
Python file/line when the current C execution frame is inside
PyEval_EvalFrame. These are commented out by default because GDB sometimes
crashes as a result (seems like a GDB bug).
Add a pyframe command that displays the current Python stack frame. If the
marked lines are uncommented, it will also cause Emacs/XEmacs to display the
current file/line.
Diffstat (limited to 'Misc/gdbinit')
| -rw-r--r-- | Misc/gdbinit | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/Misc/gdbinit b/Misc/gdbinit index 51370e2..42998c9 100644 --- a/Misc/gdbinit +++ b/Misc/gdbinit @@ -43,6 +43,28 @@ define pylocals end end +# A rewrite of the Python interpreter's line number calculator in GDB's +# command language +define lineno + 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) + set $__sz = $__sz - 1 + set $__ad = $__ad + *$__p + set $__p = $__p + 1 + if ($__ad > $__lasti) + break + end + set $__li = $__li + *$__p + set $__p = $__p + 1 + end + printf "%d", $__li +end + # print the current frame - verbose define pyframev pyframe @@ -52,7 +74,35 @@ end define pyframe set $__fn = (char *)((PyStringObject *)co->co_filename)->ob_sval set $__n = (char *)((PyStringObject *)co->co_name)->ob_sval - printf "%s (%d): %s\n", $__fn, f->f_lineno, $__n + 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_EvalFrame && $pc < PyEval_EvalCodeEx + pyframe + else + frame + end end # Here's a somewhat fragile way to print the entire Python stack from gdb. @@ -64,7 +114,7 @@ end # 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(). +# statement tests to see if we are in PyEval_EvalFrame(). # print the entire Python call stack define pystack |