fix ya.make

1 files changed, 0 insertions, 951 deletions

diff --git a/contrib/tools/python3/src/Python/traceback.c b/contrib/tools/python3/src/Python/traceback.c
deleted file mode 100644
index 7d6f7f435a..0000000000
--- a/contrib/tools/python3/src/Python/traceback.c
+++ /dev/null
@@ -1,951 +0,0 @@
-
-/* Traceback implementation */
-
-#include "Python.h"
-
-#include "code.h"
-#include "pycore_interp.h"        // PyInterpreterState.gc
-#include "frameobject.h"          // PyFrame_GetBack()
-#include "structmember.h"         // PyMemberDef
-#include "osdefs.h"               // SEP
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-
-#define OFF(x) offsetof(PyTracebackObject, x)
-
-#define PUTS(fd, str) _Py_write_noraise(fd, str, (int)strlen(str))
-#define MAX_STRING_LENGTH 500
-#define MAX_FRAME_DEPTH 100
-#define MAX_NTHREADS 100
-
-/* Function from Parser/tokenizer.c */
-extern char * PyTokenizer_FindEncodingFilename(int, PyObject *);
-
-_Py_IDENTIFIER(TextIOWrapper);
-_Py_IDENTIFIER(close);
-_Py_IDENTIFIER(open);
-_Py_IDENTIFIER(path);
-
-/*[clinic input]
-class TracebackType "PyTracebackObject *" "&PyTraceback_Type"
-[clinic start generated code]*/
-/*[clinic end generated code: output=da39a3ee5e6b4b0d input=928fa06c10151120]*/
-
-#include "clinic/traceback.c.h"
-
-static PyObject *
-tb_create_raw(PyTracebackObject *next, PyFrameObject *frame, int lasti,
-              int lineno)
-{
-    PyTracebackObject *tb;
-    if ((next != NULL && !PyTraceBack_Check(next)) ||
-                    frame == NULL || !PyFrame_Check(frame)) {
-        PyErr_BadInternalCall();
-        return NULL;
-    }
-    tb = PyObject_GC_New(PyTracebackObject, &PyTraceBack_Type);
-    if (tb != NULL) {
-        Py_XINCREF(next);
-        tb->tb_next = next;
-        Py_XINCREF(frame);
-        tb->tb_frame = frame;
-        tb->tb_lasti = lasti;
-        tb->tb_lineno = lineno;
-        PyObject_GC_Track(tb);
-    }
-    return (PyObject *)tb;
-}
-
-/*[clinic input]
-@classmethod
-TracebackType.__new__ as tb_new
-
-  tb_next: object
-  tb_frame: object(type='PyFrameObject *', subclass_of='&PyFrame_Type')
-  tb_lasti: int
-  tb_lineno: int
-
-Create a new traceback object.
-[clinic start generated code]*/
-
-static PyObject *
-tb_new_impl(PyTypeObject *type, PyObject *tb_next, PyFrameObject *tb_frame,
-            int tb_lasti, int tb_lineno)
-/*[clinic end generated code: output=fa077debd72d861a input=01cbe8ec8783fca7]*/
-{
-    if (tb_next == Py_None) {
-        tb_next = NULL;
-    } else if (!PyTraceBack_Check(tb_next)) {
-        return PyErr_Format(PyExc_TypeError,
-                            "expected traceback object or None, got '%s'",
-                            Py_TYPE(tb_next)->tp_name);
-    }
-
-    return tb_create_raw((PyTracebackObject *)tb_next, tb_frame, tb_lasti,
-                         tb_lineno);
-}
-
-static PyObject *
-tb_dir(PyTracebackObject *self, PyObject *Py_UNUSED(ignored))
-{
-    return Py_BuildValue("[ssss]", "tb_frame", "tb_next",
-                                   "tb_lasti", "tb_lineno");
-}
-
-static PyObject *
-tb_next_get(PyTracebackObject *self, void *Py_UNUSED(_))
-{
-    PyObject* ret = (PyObject*)self->tb_next;
-    if (!ret) {
-        ret = Py_None;
-    }
-    Py_INCREF(ret);
-    return ret;
-}
-
-static int
-tb_next_set(PyTracebackObject *self, PyObject *new_next, void *Py_UNUSED(_))
-{
-    if (!new_next) {
-        PyErr_Format(PyExc_TypeError, "can't delete tb_next attribute");
-        return -1;
-    }
-
-    /* We accept None or a traceback object, and map None -> NULL (inverse of
-       tb_next_get) */
-    if (new_next == Py_None) {
-        new_next = NULL;
-    } else if (!PyTraceBack_Check(new_next)) {
-        PyErr_Format(PyExc_TypeError,
-                     "expected traceback object, got '%s'",
-                     Py_TYPE(new_next)->tp_name);
-        return -1;
-    }
-
-    /* Check for loops */
-    PyTracebackObject *cursor = (PyTracebackObject *)new_next;
-    while (cursor) {
-        if (cursor == self) {
-            PyErr_Format(PyExc_ValueError, "traceback loop detected");
-            return -1;
-        }
-        cursor = cursor->tb_next;
-    }
-
-    PyObject *old_next = (PyObject*)self->tb_next;
-    Py_XINCREF(new_next);
-    self->tb_next = (PyTracebackObject *)new_next;
-    Py_XDECREF(old_next);
-
-    return 0;
-}
-
-
-static PyMethodDef tb_methods[] = {
-   {"__dir__", (PyCFunction)tb_dir, METH_NOARGS},
-   {NULL, NULL, 0, NULL},
-};
-
-static PyMemberDef tb_memberlist[] = {
-    {"tb_frame",        T_OBJECT,       OFF(tb_frame),  READONLY|PY_AUDIT_READ},
-    {"tb_lasti",        T_INT,          OFF(tb_lasti),  READONLY},
-    {"tb_lineno",       T_INT,          OFF(tb_lineno), READONLY},
-    {NULL}      /* Sentinel */
-};
-
-static PyGetSetDef tb_getsetters[] = {
-    {"tb_next", (getter)tb_next_get, (setter)tb_next_set, NULL, NULL},
-    {NULL}      /* Sentinel */
-};
-
-static void
-tb_dealloc(PyTracebackObject *tb)
-{
-    PyObject_GC_UnTrack(tb);
-    Py_TRASHCAN_BEGIN(tb, tb_dealloc)
-    Py_XDECREF(tb->tb_next);
-    Py_XDECREF(tb->tb_frame);
-    PyObject_GC_Del(tb);
-    Py_TRASHCAN_END
-}
-
-static int
-tb_traverse(PyTracebackObject *tb, visitproc visit, void *arg)
-{
-    Py_VISIT(tb->tb_next);
-    Py_VISIT(tb->tb_frame);
-    return 0;
-}
-
-static int
-tb_clear(PyTracebackObject *tb)
-{
-    Py_CLEAR(tb->tb_next);
-    Py_CLEAR(tb->tb_frame);
-    return 0;
-}
-
-PyTypeObject PyTraceBack_Type = {
-    PyVarObject_HEAD_INIT(&PyType_Type, 0)
-    "traceback",
-    sizeof(PyTracebackObject),
-    0,
-    (destructor)tb_dealloc, /*tp_dealloc*/
-    0,                  /*tp_vectorcall_offset*/
-    0,    /*tp_getattr*/
-    0,                  /*tp_setattr*/
-    0,                  /*tp_as_async*/
-    0,                  /*tp_repr*/
-    0,                  /*tp_as_number*/
-    0,                  /*tp_as_sequence*/
-    0,                  /*tp_as_mapping*/
-    0,                  /* tp_hash */
-    0,                  /* tp_call */
-    0,                  /* tp_str */
-    PyObject_GenericGetAttr,                    /* tp_getattro */
-    0,                  /* tp_setattro */
-    0,                                          /* tp_as_buffer */
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
-    tb_new__doc__,                              /* tp_doc */
-    (traverseproc)tb_traverse,                  /* tp_traverse */
-    (inquiry)tb_clear,                          /* tp_clear */
-    0,                                          /* tp_richcompare */
-    0,                                          /* tp_weaklistoffset */
-    0,                                          /* tp_iter */
-    0,                                          /* tp_iternext */
-    tb_methods,         /* tp_methods */
-    tb_memberlist,      /* tp_members */
-    tb_getsetters,                              /* tp_getset */
-    0,                                          /* tp_base */
-    0,                                          /* tp_dict */
-    0,                                          /* tp_descr_get */
-    0,                                          /* tp_descr_set */
-    0,                                          /* tp_dictoffset */
-    0,                                          /* tp_init */
-    0,                                          /* tp_alloc */
-    tb_new,                                     /* tp_new */
-};
-
-
-PyObject*
-_PyTraceBack_FromFrame(PyObject *tb_next, PyFrameObject *frame)
-{
-    assert(tb_next == NULL || PyTraceBack_Check(tb_next));
-    assert(frame != NULL);
-
-    return tb_create_raw((PyTracebackObject *)tb_next, frame, frame->f_lasti*sizeof(_Py_CODEUNIT),
-                         PyFrame_GetLineNumber(frame));
-}
-
-
-int
-PyTraceBack_Here(PyFrameObject *frame)
-{
-    PyObject *exc, *val, *tb, *newtb;
-    PyErr_Fetch(&exc, &val, &tb);
-    newtb = _PyTraceBack_FromFrame(tb, frame);
-    if (newtb == NULL) {
-        _PyErr_ChainExceptions(exc, val, tb);
-        return -1;
-    }
-    PyErr_Restore(exc, val, newtb);
-    Py_XDECREF(tb);
-    return 0;
-}
-
-/* Insert a frame into the traceback for (funcname, filename, lineno). */
-void _PyTraceback_Add(const char *funcname, const char *filename, int lineno)
-{
-    PyObject *globals;
-    PyCodeObject *code;
-    PyFrameObject *frame;
-    PyObject *exc, *val, *tb;
-
-    /* Save and clear the current exception. Python functions must not be
-       called with an exception set. Calling Python functions happens when
-       the codec of the filesystem encoding is implemented in pure Python. */
-    PyErr_Fetch(&exc, &val, &tb);
-
-    globals = PyDict_New();
-    if (!globals)
-        goto error;
-    code = PyCode_NewEmpty(filename, funcname, lineno);
-    if (!code) {
-        Py_DECREF(globals);
-        goto error;
-    }
-    frame = PyFrame_New(PyThreadState_Get(), code, globals, NULL);
-    Py_DECREF(globals);
-    Py_DECREF(code);
-    if (!frame)
-        goto error;
-    frame->f_lineno = lineno;
-
-    PyErr_Restore(exc, val, tb);
-    PyTraceBack_Here(frame);
-    Py_DECREF(frame);
-    return;
-
-error:
-    _PyErr_ChainExceptions(exc, val, tb);
-}
-
-static PyObject *
-_Py_FindSourceFile(PyObject *filename, char* namebuf, size_t namelen, PyObject *io)
-{
-    Py_ssize_t i;
-    PyObject *binary;
-    PyObject *v;
-    Py_ssize_t npath;
-    size_t taillen;
-    PyObject *syspath;
-    PyObject *path;
-    const char* tail;
-    PyObject *filebytes;
-    const char* filepath;
-    Py_ssize_t len;
-    PyObject* result;
-
-    filebytes = PyUnicode_EncodeFSDefault(filename);
-    if (filebytes == NULL) {
-        PyErr_Clear();
-        return NULL;
-    }
-    filepath = PyBytes_AS_STRING(filebytes);
-
-    /* Search tail of filename in sys.path before giving up */
-    tail = strrchr(filepath, SEP);
-    if (tail == NULL)
-        tail = filepath;
-    else
-        tail++;
-    taillen = strlen(tail);
-
-    syspath = _PySys_GetObjectId(&PyId_path);
-    if (syspath == NULL || !PyList_Check(syspath))
-        goto error;
-    npath = PyList_Size(syspath);
-
-    for (i = 0; i < npath; i++) {
-        v = PyList_GetItem(syspath, i);
-        if (v == NULL) {
-            PyErr_Clear();
-            break;
-        }
-        if (!PyUnicode_Check(v))
-            continue;
-        path = PyUnicode_EncodeFSDefault(v);
-        if (path == NULL) {
-            PyErr_Clear();
-            continue;
-        }
-        len = PyBytes_GET_SIZE(path);
-        if (len + 1 + (Py_ssize_t)taillen >= (Py_ssize_t)namelen - 1) {
-            Py_DECREF(path);
-            continue; /* Too long */
-        }
-        strcpy(namebuf, PyBytes_AS_STRING(path));
-        Py_DECREF(path);
-        if (strlen(namebuf) != (size_t)len)
-            continue; /* v contains '\0' */
-        if (len > 0 && namebuf[len-1] != SEP)
-            namebuf[len++] = SEP;
-        strcpy(namebuf+len, tail);
-
-        binary = _PyObject_CallMethodId(io, &PyId_open, "ss", namebuf, "rb");
-        if (binary != NULL) {
-            result = binary;
-            goto finally;
-        }
-        PyErr_Clear();
-    }
-    goto error;
-
-error:
-    result = NULL;
-finally:
-    Py_DECREF(filebytes);
-    return result;
-}
-
-int
-_Py_DisplaySourceLine(PyObject *f, PyObject *filename, int lineno, int indent)
-{
-    int err = 0;
-    int fd;
-    int i;
-    char *found_encoding;
-    const char *encoding;
-    PyObject *io;
-    PyObject *binary;
-    PyObject *fob = NULL;
-    PyObject *lineobj = NULL;
-    PyObject *res;
-    char buf[MAXPATHLEN+1];
-    int kind;
-    const void *data;
-
-    /* open the file */
-    if (filename == NULL)
-        return 0;
-
-    io = PyImport_ImportModuleNoBlock("io");
-    if (io == NULL)
-        return -1;
-    binary = _PyObject_CallMethodId(io, &PyId_open, "Os", filename, "rb");
-
-    if (binary == NULL) {
-        PyErr_Clear();
-
-        binary = _Py_FindSourceFile(filename, buf, sizeof(buf), io);
-        if (binary == NULL) {
-            Py_DECREF(io);
-            return -1;
-        }
-    }
-
-    /* use the right encoding to decode the file as unicode */
-    fd = PyObject_AsFileDescriptor(binary);
-    if (fd < 0) {
-        Py_DECREF(io);
-        Py_DECREF(binary);
-        return 0;
-    }
-    found_encoding = PyTokenizer_FindEncodingFilename(fd, filename);
-    if (found_encoding == NULL)
-        PyErr_Clear();
-    encoding = (found_encoding != NULL) ? found_encoding : "utf-8";
-    /* Reset position */
-    if (lseek(fd, 0, SEEK_SET) == (off_t)-1) {
-        Py_DECREF(io);
-        Py_DECREF(binary);
-        PyMem_Free(found_encoding);
-        return 0;
-    }
-    fob = _PyObject_CallMethodId(io, &PyId_TextIOWrapper, "Os", binary, encoding);
-    Py_DECREF(io);
-    PyMem_Free(found_encoding);
-
-    if (fob == NULL) {
-        PyErr_Clear();
-
-        res = _PyObject_CallMethodIdNoArgs(binary, &PyId_close);
-        Py_DECREF(binary);
-        if (res)
-            Py_DECREF(res);
-        else
-            PyErr_Clear();
-        return 0;
-    }
-    Py_DECREF(binary);
-
-    /* get the line number lineno */
-    for (i = 0; i < lineno; i++) {
-        Py_XDECREF(lineobj);
-        lineobj = PyFile_GetLine(fob, -1);
-        if (!lineobj) {
-            PyErr_Clear();
-            err = -1;
-            break;
-        }
-    }
-    res = _PyObject_CallMethodIdNoArgs(fob, &PyId_close);
-    if (res)
-        Py_DECREF(res);
-    else
-        PyErr_Clear();
-    Py_DECREF(fob);
-    if (!lineobj || !PyUnicode_Check(lineobj)) {
-        Py_XDECREF(lineobj);
-        return err;
-    }
-
-    /* remove the indentation of the line */
-    kind = PyUnicode_KIND(lineobj);
-    data = PyUnicode_DATA(lineobj);
-    for (i=0; i < PyUnicode_GET_LENGTH(lineobj); i++) {
-        Py_UCS4 ch = PyUnicode_READ(kind, data, i);
-        if (ch != ' ' && ch != '\t' && ch != '\014')
-            break;
-    }
-    if (i) {
-        PyObject *truncated;
-        truncated = PyUnicode_Substring(lineobj, i, PyUnicode_GET_LENGTH(lineobj));
-        if (truncated) {
-            Py_DECREF(lineobj);
-            lineobj = truncated;
-        } else {
-            PyErr_Clear();
-        }
-    }
-
-    /* Write some spaces before the line */
-    strcpy(buf, "          ");
-    assert (strlen(buf) == 10);
-    while (indent > 0) {
-        if (indent < 10)
-            buf[indent] = '\0';
-        err = PyFile_WriteString(buf, f);
-        if (err != 0)
-            break;
-        indent -= 10;
-    }
-
-    /* finally display the line */
-    if (err == 0)
-        err = PyFile_WriteObject(lineobj, f, Py_PRINT_RAW);
-    Py_DECREF(lineobj);
-    if  (err == 0)
-        err = PyFile_WriteString("\n", f);
-    return err;
-}
-
-static int
-tb_displayline(PyObject *f, PyObject *filename, int lineno, PyObject *name)
-{
-    int err;
-    PyObject *line;
-
-    if (filename == NULL || name == NULL)
-        return -1;
-    line = PyUnicode_FromFormat("  File \"%U\", line %d, in %U\n",
-                                filename, lineno, name);
-    if (line == NULL)
-        return -1;
-    err = PyFile_WriteObject(line, f, Py_PRINT_RAW);
-    Py_DECREF(line);
-    if (err != 0)
-        return err;
-    /* ignore errors since we can't report them, can we? */
-    if (_Py_DisplaySourceLine(f, filename, lineno, 4))
-        PyErr_Clear();
-    return err;
-}
-
-static const int TB_RECURSIVE_CUTOFF = 3; // Also hardcoded in traceback.py.
-
-static int
-tb_print_line_repeated(PyObject *f, long cnt)
-{
-    cnt -= TB_RECURSIVE_CUTOFF;
-    PyObject *line = PyUnicode_FromFormat(
-        (cnt > 1)
-          ? "  [Previous line repeated %ld more times]\n"
-          : "  [Previous line repeated %ld more time]\n",
-        cnt);
-    if (line == NULL) {
-        return -1;
-    }
-    int err = PyFile_WriteObject(line, f, Py_PRINT_RAW);
-    Py_DECREF(line);
-    return err;
-}
-
-static int
-tb_printinternal(PyTracebackObject *tb, PyObject *f, long limit)
-{
-    int err = 0;
-    Py_ssize_t depth = 0;
-    PyObject *last_file = NULL;
-    int last_line = -1;
-    PyObject *last_name = NULL;
-    long cnt = 0;
-    PyTracebackObject *tb1 = tb;
-    while (tb1 != NULL) {
-        depth++;
-        tb1 = tb1->tb_next;
-    }
-    while (tb != NULL && depth > limit) {
-        depth--;
-        tb = tb->tb_next;
-    }
-    while (tb != NULL && err == 0) {
-        PyCodeObject *code = PyFrame_GetCode(tb->tb_frame);
-        if (last_file == NULL ||
-            code->co_filename != last_file ||
-            last_line == -1 || tb->tb_lineno != last_line ||
-            last_name == NULL || code->co_name != last_name) {
-            if (cnt > TB_RECURSIVE_CUTOFF) {
-                err = tb_print_line_repeated(f, cnt);
-            }
-            last_file = code->co_filename;
-            last_line = tb->tb_lineno;
-            last_name = code->co_name;
-            cnt = 0;
-        }
-        cnt++;
-        if (err == 0 && cnt <= TB_RECURSIVE_CUTOFF) {
-            err = tb_displayline(f, code->co_filename, tb->tb_lineno,
-                                 code->co_name);
-            if (err == 0) {
-                err = PyErr_CheckSignals();
-            }
-        }
-        Py_DECREF(code);
-        tb = tb->tb_next;
-    }
-    if (err == 0 && cnt > TB_RECURSIVE_CUTOFF) {
-        err = tb_print_line_repeated(f, cnt);
-    }
-    return err;
-}
-
-#define PyTraceBack_LIMIT 1000
-
-int
-PyTraceBack_Print(PyObject *v, PyObject *f)
-{
-    int err;
-    PyObject *limitv;
-    long limit = PyTraceBack_LIMIT;
-
-    if (v == NULL)
-        return 0;
-    if (!PyTraceBack_Check(v)) {
-        PyErr_BadInternalCall();
-        return -1;
-    }
-    limitv = PySys_GetObject("tracebacklimit");
-    if (limitv && PyLong_Check(limitv)) {
-        int overflow;
-        limit = PyLong_AsLongAndOverflow(limitv, &overflow);
-        if (overflow > 0) {
-            limit = LONG_MAX;
-        }
-        else if (limit <= 0) {
-            return 0;
-        }
-    }
-    err = PyFile_WriteString("Traceback (most recent call last):\n", f);
-    if (!err)
-        err = tb_printinternal((PyTracebackObject *)v, f, limit);
-    return err;
-}
-
-/* Format an integer in range [0; 0xffffffff] to decimal and write it
-   into the file fd.
-
-   This function is signal safe. */
-
-void
-_Py_DumpDecimal(int fd, size_t value)
-{
-    /* maximum number of characters required for output of %lld or %p.
-       We need at most ceil(log10(256)*SIZEOF_LONG_LONG) digits,
-       plus 1 for the null byte.  53/22 is an upper bound for log10(256). */
-    char buffer[1 + (sizeof(size_t)*53-1) / 22 + 1];
-    char *ptr, *end;
-
-    end = &buffer[Py_ARRAY_LENGTH(buffer) - 1];
-    ptr = end;
-    *ptr = '\0';
-    do {
-        --ptr;
-        assert(ptr >= buffer);
-        *ptr = '0' + (value % 10);
-        value /= 10;
-    } while (value);
-
-    _Py_write_noraise(fd, ptr, end - ptr);
-}
-
-/* Format an integer as hexadecimal with width digits into fd file descriptor.
-   The function is signal safe. */
-void
-_Py_DumpHexadecimal(int fd, uintptr_t value, Py_ssize_t width)
-{
-    char buffer[sizeof(uintptr_t) * 2 + 1], *ptr, *end;
-    const Py_ssize_t size = Py_ARRAY_LENGTH(buffer) - 1;
-
-    if (width > size)
-        width = size;
-    /* it's ok if width is negative */
-
-    end = &buffer[size];
-    ptr = end;
-    *ptr = '\0';
-    do {
-        --ptr;
-        assert(ptr >= buffer);
-        *ptr = Py_hexdigits[value & 15];
-        value >>= 4;
-    } while ((end - ptr) < width || value);
-
-    _Py_write_noraise(fd, ptr, end - ptr);
-}
-
-void
-_Py_DumpASCII(int fd, PyObject *text)
-{
-    PyASCIIObject *ascii = (PyASCIIObject *)text;
-    Py_ssize_t i, size;
-    int truncated;
-    int kind;
-    void *data = NULL;
-    wchar_t *wstr = NULL;
-    Py_UCS4 ch;
-
-    if (!PyUnicode_Check(text))
-        return;
-
-    size = ascii->length;
-    kind = ascii->state.kind;
-    if (kind == PyUnicode_WCHAR_KIND) {
-        wstr = ((PyASCIIObject *)text)->wstr;
-        if (wstr == NULL)
-            return;
-        size = ((PyCompactUnicodeObject *)text)->wstr_length;
-    }
-    else if (ascii->state.compact) {
-        if (ascii->state.ascii)
-            data = ((PyASCIIObject*)text) + 1;
-        else
-            data = ((PyCompactUnicodeObject*)text) + 1;
-    }
-    else {
-        data = ((PyUnicodeObject *)text)->data.any;
-        if (data == NULL)
-            return;
-    }
-
-    if (MAX_STRING_LENGTH < size) {
-        size = MAX_STRING_LENGTH;
-        truncated = 1;
-    }
-    else {
-        truncated = 0;
-    }
-
-    // Is an ASCII string?
-    if (ascii->state.ascii) {
-        assert(kind == PyUnicode_1BYTE_KIND);
-        char *str = data;
-
-        int need_escape = 0;
-        for (i=0; i < size; i++) {
-            ch = str[i];
-            if (!(' ' <= ch && ch <= 126)) {
-                need_escape = 1;
-                break;
-            }
-        }
-        if (!need_escape) {
-            // The string can be written with a single write() syscall
-            _Py_write_noraise(fd, str, size);
-            goto done;
-        }
-    }
-
-    for (i=0; i < size; i++) {
-        if (kind != PyUnicode_WCHAR_KIND)
-            ch = PyUnicode_READ(kind, data, i);
-        else
-            ch = wstr[i];
-        if (' ' <= ch && ch <= 126) {
-            /* printable ASCII character */
-            char c = (char)ch;
-            _Py_write_noraise(fd, &c, 1);
-        }
-        else if (ch <= 0xff) {
-            PUTS(fd, "\\x");
-            _Py_DumpHexadecimal(fd, ch, 2);
-        }
-        else if (ch <= 0xffff) {
-            PUTS(fd, "\\u");
-            _Py_DumpHexadecimal(fd, ch, 4);
-        }
-        else {
-            PUTS(fd, "\\U");
-            _Py_DumpHexadecimal(fd, ch, 8);
-        }
-    }
-
-done:
-    if (truncated) {
-        PUTS(fd, "...");
-    }
-}
-
-/* Write a frame into the file fd: "File "xxx", line xxx in xxx".
-
-   This function is signal safe. */
-
-static void
-dump_frame(int fd, PyFrameObject *frame)
-{
-    PyCodeObject *code = PyFrame_GetCode(frame);
-    PUTS(fd, "  File ");
-    if (code->co_filename != NULL
-        && PyUnicode_Check(code->co_filename))
-    {
-        PUTS(fd, "\"");
-        _Py_DumpASCII(fd, code->co_filename);
-        PUTS(fd, "\"");
-    } else {
-        PUTS(fd, "???");
-    }
-
-    int lineno = PyFrame_GetLineNumber(frame);
-    PUTS(fd, ", line ");
-    if (lineno >= 0) {
-        _Py_DumpDecimal(fd, (size_t)lineno);
-    }
-    else {
-        PUTS(fd, "???");
-    }
-    PUTS(fd, " in ");
-
-    if (code->co_name != NULL
-       && PyUnicode_Check(code->co_name)) {
-        _Py_DumpASCII(fd, code->co_name);
-    }
-    else {
-        PUTS(fd, "???");
-    }
-
-    PUTS(fd, "\n");
-    Py_DECREF(code);
-}
-
-static void
-dump_traceback(int fd, PyThreadState *tstate, int write_header)
-{
-    PyFrameObject *frame;
-    unsigned int depth;
-
-    if (write_header) {
-        PUTS(fd, "Stack (most recent call first):\n");
-    }
-
-    // Use a borrowed reference. Avoid Py_INCREF/Py_DECREF, since this function
-    // can be called in a signal handler by the faulthandler module which must
-    // not modify Python objects.
-    frame = tstate->frame;
-    if (frame == NULL) {
-        PUTS(fd, "  <no Python frame>\n");
-        return;
-    }
-
-    depth = 0;
-    while (1) {
-        if (MAX_FRAME_DEPTH <= depth) {
-            PUTS(fd, "  ...\n");
-            break;
-        }
-        if (!PyFrame_Check(frame)) {
-            break;
-        }
-        dump_frame(fd, frame);
-        PyFrameObject *back = frame->f_back;
-
-        if (back == NULL) {
-            break;
-        }
-        frame = back;
-        depth++;
-    }
-}
-
-/* Dump the traceback of a Python thread into fd. Use write() to write the
-   traceback and retry if write() is interrupted by a signal (failed with
-   EINTR), but don't call the Python signal handler.
-
-   The caller is responsible to call PyErr_CheckSignals() to call Python signal
-   handlers if signals were received. */
-void
-_Py_DumpTraceback(int fd, PyThreadState *tstate)
-{
-    dump_traceback(fd, tstate, 1);
-}
-
-/* Write the thread identifier into the file 'fd': "Current thread 0xHHHH:\" if
-   is_current is true, "Thread 0xHHHH:\n" otherwise.
-
-   This function is signal safe. */
-
-static void
-write_thread_id(int fd, PyThreadState *tstate, int is_current)
-{
-    if (is_current)
-        PUTS(fd, "Current thread 0x");
-    else
-        PUTS(fd, "Thread 0x");
-    _Py_DumpHexadecimal(fd,
-                        tstate->thread_id,
-                        sizeof(unsigned long) * 2);
-    PUTS(fd, " (most recent call first):\n");
-}
-
-/* Dump the traceback of all Python threads into fd. Use write() to write the
-   traceback and retry if write() is interrupted by a signal (failed with
-   EINTR), but don't call the Python signal handler.
-
-   The caller is responsible to call PyErr_CheckSignals() to call Python signal
-   handlers if signals were received. */
-const char*
-_Py_DumpTracebackThreads(int fd, PyInterpreterState *interp,
-                         PyThreadState *current_tstate)
-{
-    PyThreadState *tstate;
-    unsigned int nthreads;
-
-    if (current_tstate == NULL) {
-        /* _Py_DumpTracebackThreads() is called from signal handlers by
-           faulthandler.
-
-           SIGSEGV, SIGFPE, SIGABRT, SIGBUS and SIGILL are synchronous signals
-           and are thus delivered to the thread that caused the fault. Get the
-           Python thread state of the current thread.
-
-           PyThreadState_Get() doesn't give the state of the thread that caused
-           the fault if the thread released the GIL, and so
-           _PyThreadState_GET() cannot be used. Read the thread specific
-           storage (TSS) instead: call PyGILState_GetThisThreadState(). */
-        current_tstate = PyGILState_GetThisThreadState();
-    }
-
-    if (interp == NULL) {
-        if (current_tstate == NULL) {
-            interp = _PyGILState_GetInterpreterStateUnsafe();
-            if (interp == NULL) {
-                /* We need the interpreter state to get Python threads */
-                return "unable to get the interpreter state";
-            }
-        }
-        else {
-            interp = current_tstate->interp;
-        }
-    }
-    assert(interp != NULL);
-
-    /* Get the current interpreter from the current thread */
-    tstate = PyInterpreterState_ThreadHead(interp);
-    if (tstate == NULL)
-        return "unable to get the thread head state";
-
-    /* Dump the traceback of each thread */
-    tstate = PyInterpreterState_ThreadHead(interp);
-    nthreads = 0;
-    _Py_BEGIN_SUPPRESS_IPH
-    do
-    {
-        if (nthreads != 0)
-            PUTS(fd, "\n");
-        if (nthreads >= MAX_NTHREADS) {
-            PUTS(fd, "...\n");
-            break;
-        }
-        write_thread_id(fd, tstate, tstate == current_tstate);
-        if (tstate == current_tstate && tstate->interp->gc.collecting) {
-            PUTS(fd, "  Garbage-collecting\n");
-        }
-        dump_traceback(fd, tstate, 0);
-        tstate = PyThreadState_Next(tstate);
-        nthreads++;
-    } while (tstate != NULL);
-    _Py_END_SUPPRESS_IPH
-
-    return NULL;
-}
-