1 #ifndef Py_INTERNAL_TRACEBACK_H 2 #define Py_INTERNAL_TRACEBACK_H 3 #ifdef __cplusplus 4 extern "C" { 5 #endif 6 7 #ifndef Py_BUILD_CORE 8 # error "this header requires Py_BUILD_CORE define" 9 #endif 10 11 // Export for '_ctypes' shared extension 12 PyAPI_FUNC(int) _Py_DisplaySourceLine(PyObject *, PyObject *, int, int, int *, PyObject **); 13 14 // Export for 'pyexact' shared extension 15 PyAPI_FUNC(void) _PyTraceback_Add(const char *, const char *, int); 16 17 /* Write the Python traceback into the file 'fd'. For example: 18 19 Traceback (most recent call first): 20 File "xxx", line xxx in <xxx> 21 File "xxx", line xxx in <xxx> 22 ... 23 File "xxx", line xxx in <xxx> 24 25 This function is written for debug purpose only, to dump the traceback in 26 the worst case: after a segmentation fault, at fatal error, etc. That's why, 27 it is very limited. Strings are truncated to 100 characters and encoded to 28 ASCII with backslashreplace. It doesn't write the source code, only the 29 function name, filename and line number of each frame. Write only the first 30 100 frames: if the traceback is truncated, write the line " ...". 31 32 This function is signal safe. */ 33 34 extern void _Py_DumpTraceback( 35 int fd, 36 PyThreadState *tstate); 37 38 /* Write the traceback of all threads into the file 'fd'. current_thread can be 39 NULL. 40 41 Return NULL on success, or an error message on error. 42 43 This function is written for debug purpose only. It calls 44 _Py_DumpTraceback() for each thread, and so has the same limitations. It 45 only write the traceback of the first 100 threads: write "..." if there are 46 more threads. 47 48 If current_tstate is NULL, the function tries to get the Python thread state 49 of the current thread. It is not an error if the function is unable to get 50 the current Python thread state. 51 52 If interp is NULL, the function tries to get the interpreter state from 53 the current Python thread state, or from 54 _PyGILState_GetInterpreterStateUnsafe() in last resort. 55 56 It is better to pass NULL to interp and current_tstate, the function tries 57 different options to retrieve this information. 58 59 This function is signal safe. */ 60 61 extern const char* _Py_DumpTracebackThreads( 62 int fd, 63 PyInterpreterState *interp, 64 PyThreadState *current_tstate); 65 66 /* Write a Unicode object into the file descriptor fd. Encode the string to 67 ASCII using the backslashreplace error handler. 68 69 Do nothing if text is not a Unicode object. The function accepts Unicode 70 string which is not ready (PyUnicode_WCHAR_KIND). 71 72 This function is signal safe. */ 73 extern void _Py_DumpASCII(int fd, PyObject *text); 74 75 /* Format an integer as decimal into the file descriptor fd. 76 77 This function is signal safe. */ 78 extern void _Py_DumpDecimal( 79 int fd, 80 size_t value); 81 82 /* Format an integer as hexadecimal with width digits into fd file descriptor. 83 The function is signal safe. */ 84 extern void _Py_DumpHexadecimal( 85 int fd, 86 uintptr_t value, 87 Py_ssize_t width); 88 89 extern PyObject* _PyTraceBack_FromFrame( 90 PyObject *tb_next, 91 PyFrameObject *frame); 92 93 #define EXCEPTION_TB_HEADER "Traceback (most recent call last):\n" 94 #define EXCEPTION_GROUP_TB_HEADER "Exception Group Traceback (most recent call last):\n" 95 96 /* Write the traceback tb to file f. Prefix each line with 97 indent spaces followed by the margin (if it is not NULL). */ 98 extern int _PyTraceBack_Print( 99 PyObject *tb, const char *header, PyObject *f); 100 extern int _Py_WriteIndentedMargin(int, const char*, PyObject *); 101 extern int _Py_WriteIndent(int, PyObject *); 102 103 #ifdef __cplusplus 104 } 105 #endif 106 #endif /* !Py_INTERNAL_TRACEBACK_H */ 107