diff options
Diffstat (limited to 'Python')
| -rw-r--r-- | Python/pylifecycle.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c index c02071780b8..ee64b0f125b 100644 --- a/Python/pylifecycle.c +++ b/Python/pylifecycle.c @@ -2496,6 +2496,45 @@ fatal_error_exit(int status) } +// Dump the list of extension modules of sys.modules into fd file descriptor. +// This function is called by a signal handler in faulthandler: avoid memory +// allocations and keep the implementation simple. For example, the list +// is not sorted on purpose. +void +_Py_DumpExtensionModules(int fd, PyInterpreterState *interp) +{ + if (interp == NULL) { + return; + } + PyObject *modules = interp->modules; + if (!PyDict_Check(modules)) { + return; + } + + PUTS(fd, "\nExtension modules: "); + + Py_ssize_t pos = 0; + PyObject *key, *value; + int comma = 0; + while (PyDict_Next(modules, &pos, &key, &value)) { + if (!PyUnicode_Check(key)) { + continue; + } + if (!_PyModule_IsExtension(value)) { + continue; + } + + if (comma) { + PUTS(fd, ", "); + } + comma = 1; + + _Py_DumpASCII(fd, key); + } + PUTS(fd, "\n"); +} + + static void _Py_NO_RETURN fatal_error(int fd, int header, const char *prefix, const char *msg, int status) @@ -2557,6 +2596,8 @@ fatal_error(int fd, int header, const char *prefix, const char *msg, _Py_FatalError_DumpTracebacks(fd, interp, tss_tstate); } + _Py_DumpExtensionModules(fd, interp); + /* The main purpose of faulthandler is to display the traceback. This function already did its best to display a traceback. Disable faulthandler to prevent writing a second traceback |