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Python: include Python stack trace in the crash log 

This helps Python developers troubleshoot errors when
Python causes a crash.
This commit is contained in:
Daniel Bailey 2020-08-06 15:34:55 +10:00 committed by Campbell Barton
parent c5b6b3d82f
commit e9c4325515
Notes: blender-bot 2023-02-14 10:21:10 +01:00 
Referenced by commit 82150f5641, Workaround release builds failing
5 changed files with 31 additions and 0 deletions
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1
source/blender/python/BPY_extern.h
View File

@ -55,6 +55,7 @@ void BPY_python_start(int argc, const char **argv);
void BPY_python_end(void);
void BPY_python_reset(struct bContext *C);
void BPY_python_use_system_env(void);
void BPY_python_backtrace(FILE *file);
/* global interpreter lock */

14
source/blender/python/generic/py_capi_utils.c
View File

@ -360,6 +360,20 @@ void PyC_StackSpit(void)
}
}
void PyC_StackPrint(FILE *fp)
{
PyThreadState *tstate = PyGILState_GetThisThreadState();
if (tstate != NULL && tstate->frame != NULL) {
PyFrameObject *frame = tstate->frame;
do {
const int line = PyCode_Addr2Line(frame->f_code, frame->f_lasti);
const char *filename = _PyUnicode_AsString(frame->f_code->co_filename);
const char *funcname = _PyUnicode_AsString(frame->f_code->co_name);
fprintf(fp, " File \"%s\", line %d in %s\n", filename, line, funcname);
} while ((frame = frame->f_back));
}
}
void PyC_FileAndNum(const char **r_filename, int *r_lineno)
{
PyFrameObject *frame;

1
source/blender/python/generic/py_capi_utils.h
View File

@ -28,6 +28,7 @@ void PyC_ObSpit(const char *name, PyObject *var);
void PyC_ObSpitStr(char *result, size_t result_len, PyObject *var);
void PyC_LineSpit(void);
void PyC_StackSpit(void);
void PyC_StackPrint(FILE *fp);
PyObject *PyC_ExceptionBuffer(void);
PyObject *PyC_ExceptionBuffer_Simple(void);
PyObject *PyC_Object_GetAttrStringArgs(PyObject *o, Py_ssize_t n, ...);

6
source/blender/python/intern/bpy_interface.c
View File

@ -436,6 +436,12 @@ static void python_script_error_jump_text(struct Text *text)
}
}
void BPY_python_backtrace(FILE *fp)
{
fputs("\n# Python backtrace\n", fp);
PyC_StackPrint(fp);
}
/* super annoying, undo _PyModule_Clear(), bug [#23871] */
#define PYMODULE_CLEAR_WORKAROUND

9
source/creator/creator_signals.c
View File

@ -59,6 +59,10 @@
# include <signal.h>
# ifdef WITH_PYTHON
# include "BPY_extern.h" /* BPY_python_backtrace */
# endif
# include "creator_intern.h" /* own include */
// #define USE_WRITE_CRASH_BLEND
@ -174,6 +178,11 @@ static void sig_handle_crash(int signum)
sig_handle_crash_backtrace(fp);
# ifdef WITH_PYTHON
/* Generate python back-trace if Python is currently active. */
BPY_python_backtrace(fp);
# endif
fclose(fp);
}