Merge branch 'blender-v2.90-release' into master

4 files changed, 22 insertions, 0 deletions

diff --git a/source/blender/python/BPY_extern.h b/source/blender/python/BPY_extern.h
index 049b919b4a4..74d46f6c56f 100644
--- a/source/blender/python/BPY_extern.h
+++ b/source/blender/python/BPY_extern.h
@@ -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 */
 
diff --git a/source/blender/python/generic/py_capi_utils.c b/source/blender/python/generic/py_capi_utils.c
index a5b0e244fde..413e27589fd 100644
--- a/source/blender/python/generic/py_capi_utils.c
+++ b/source/blender/python/generic/py_capi_utils.c
@@ -383,6 +383,20 @@ 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));
+  }
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */
diff --git a/source/blender/python/generic/py_capi_utils.h b/source/blender/python/generic/py_capi_utils.h
index e8b2e8ff502..7950ee2c968 100644
--- a/source/blender/python/generic/py_capi_utils.h
+++ b/source/blender/python/generic/py_capi_utils.h
@@ -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, ...);
diff --git a/source/blender/python/intern/bpy_interface.c b/source/blender/python/intern/bpy_interface.c
index 585119a0eae..3dcd1d944a5 100644
--- a/source/blender/python/intern/bpy_interface.c
+++ b/source/blender/python/intern/bpy_interface.c
@@ -438,6 +438,12 @@ 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