bpo-38644: Use _PySys_Audit(): pass tstate explicitly (GH-19183)

Add the dependency to tstate more explicit.
diff --git a/Python/ceval.c b/Python/ceval.c
index 2be02a1..d79a239 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -18,6 +18,7 @@
 #include "pycore_pyerrors.h"
 #include "pycore_pylifecycle.h"
 #include "pycore_pystate.h"
+#include "pycore_sysmodule.h"
 #include "pycore_tupleobject.h"
 
 #include "code.h"
@@ -4693,9 +4694,10 @@
     /* The caller must hold the GIL */
     assert(PyGILState_Check());
 
-    /* Call PySys_Audit() in the context of the current thread state,
+    /* Call _PySys_Audit() in the context of the current thread state,
        even if tstate is not the current thread state. */
-    if (PySys_Audit("sys.setprofile", NULL) < 0) {
+    PyThreadState *current_tstate = _PyThreadState_GET();
+    if (_PySys_Audit(current_tstate, "sys.setprofile", NULL) < 0) {
         return -1;
     }
 
@@ -4721,7 +4723,7 @@
 {
     PyThreadState *tstate = _PyThreadState_GET();
     if (_PyEval_SetProfile(tstate, func, arg) < 0) {
-        /* Log PySys_Audit() error */
+        /* Log _PySys_Audit() error */
         _PyErr_WriteUnraisableMsg("in PyEval_SetProfile", NULL);
     }
 }
@@ -4733,9 +4735,10 @@
     /* The caller must hold the GIL */
     assert(PyGILState_Check());
 
-    /* Call PySys_Audit() in the context of the current thread state,
+    /* Call _PySys_Audit() in the context of the current thread state,
        even if tstate is not the current thread state. */
-    if (PySys_Audit("sys.settrace", NULL) < 0) {
+    PyThreadState *current_tstate = _PyThreadState_GET();
+    if (_PySys_Audit(current_tstate, "sys.settrace", NULL) < 0) {
         return -1;
     }
 
@@ -4765,7 +4768,7 @@
 {
     PyThreadState *tstate = _PyThreadState_GET();
     if (_PyEval_SetTrace(tstate, func, arg) < 0) {
-        /* Log PySys_Audit() error */
+        /* Log _PySys_Audit() error */
         _PyErr_WriteUnraisableMsg("in PyEval_SetTrace", NULL);
     }
 }
@@ -4790,7 +4793,7 @@
 {
     PyThreadState *tstate = _PyThreadState_GET();
 
-    if (PySys_Audit("sys.set_asyncgen_hook_firstiter", NULL) < 0) {
+    if (_PySys_Audit(tstate, "sys.set_asyncgen_hook_firstiter", NULL) < 0) {
         return -1;
     }
 
@@ -4811,7 +4814,7 @@
 {
     PyThreadState *tstate = _PyThreadState_GET();
 
-    if (PySys_Audit("sys.set_asyncgen_hook_finalizer", NULL) < 0) {
+    if (_PySys_Audit(tstate, "sys.set_asyncgen_hook_finalizer", NULL) < 0) {
         return -1;
     }
 
diff --git a/Python/errors.c b/Python/errors.c
index 4656fb2..a2fe52b 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -5,6 +5,7 @@
 #include "pycore_initconfig.h"
 #include "pycore_pyerrors.h"
 #include "pycore_pystate.h"
+#include "pycore_sysmodule.h"
 #include "pycore_traceback.h"
 
 #ifndef __STDC__
@@ -1410,7 +1411,7 @@
         goto default_hook;
     }
 
-    if (PySys_Audit("sys.unraisablehook", "OO", hook, hook_args) < 0) {
+    if (_PySys_Audit(tstate, "sys.unraisablehook", "OO", hook, hook_args) < 0) {
         Py_DECREF(hook_args);
         err_msg_str = "Exception ignored in audit hook";
         obj = NULL;
diff --git a/Python/import.c b/Python/import.c
index 645ebdf..5d500df 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -10,6 +10,7 @@
 #include "pycore_pylifecycle.h"
 #include "pycore_pymem.h"
 #include "pycore_pystate.h"
+#include "pycore_sysmodule.h"
 #include "errcode.h"
 #include "marshal.h"
 #include "code.h"
@@ -1735,10 +1736,10 @@
     PyObject *sys_path = PySys_GetObject("path");
     PyObject *sys_meta_path = PySys_GetObject("meta_path");
     PyObject *sys_path_hooks = PySys_GetObject("path_hooks");
-    if (PySys_Audit("import", "OOOOO",
-                    abs_name, Py_None, sys_path ? sys_path : Py_None,
-                    sys_meta_path ? sys_meta_path : Py_None,
-                    sys_path_hooks ? sys_path_hooks : Py_None) < 0) {
+    if (_PySys_Audit(tstate, "import", "OOOOO",
+                     abs_name, Py_None, sys_path ? sys_path : Py_None,
+                     sys_meta_path ? sys_meta_path : Py_None,
+                     sys_path_hooks ? sys_path_hooks : Py_None) < 0) {
         return NULL;
     }
 
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 76bc48d..95571a8 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -16,6 +16,7 @@
 #include "pycore_pyerrors.h"
 #include "pycore_pylifecycle.h"
 #include "pycore_pystate.h"
+#include "pycore_sysmodule.h"
 #include "grammar.h"
 #include "node.h"
 #include "token.h"
@@ -696,8 +697,8 @@
         }
     }
     hook = _PySys_GetObjectId(&PyId_excepthook);
-    if (PySys_Audit("sys.excepthook", "OOOO", hook ? hook : Py_None,
-                    exception, v, tb) < 0) {
+    if (_PySys_Audit(tstate, "sys.excepthook", "OOOO", hook ? hook : Py_None,
+                     exception, v, tb) < 0) {
         if (PyErr_ExceptionMatches(PyExc_RuntimeError)) {
             PyErr_Clear();
             goto done;
@@ -1100,7 +1101,7 @@
 }
 
 static PyObject *
-run_eval_code_obj(PyCodeObject *co, PyObject *globals, PyObject *locals)
+run_eval_code_obj(PyThreadState *tstate, PyCodeObject *co, PyObject *globals, PyObject *locals)
 {
     PyObject *v;
     /*
@@ -1117,14 +1118,14 @@
 
     /* Set globals['__builtins__'] if it doesn't exist */
     if (globals != NULL && PyDict_GetItemString(globals, "__builtins__") == NULL) {
-        PyInterpreterState *interp = _PyInterpreterState_GET_UNSAFE();
-        if (PyDict_SetItemString(globals, "__builtins__", interp->builtins) < 0) {
+        if (PyDict_SetItemString(globals, "__builtins__",
+                                 tstate->interp->builtins) < 0) {
             return NULL;
         }
     }
 
     v = PyEval_EvalCode((PyObject*)co, globals, locals);
-    if (!v && PyErr_Occurred() == PyExc_KeyboardInterrupt) {
+    if (!v && _PyErr_Occurred(tstate) == PyExc_KeyboardInterrupt) {
         _Py_UnhandledKeyboardInterrupt = 1;
     }
     return v;
@@ -1134,18 +1135,17 @@
 run_mod(mod_ty mod, PyObject *filename, PyObject *globals, PyObject *locals,
             PyCompilerFlags *flags, PyArena *arena)
 {
-    PyCodeObject *co;
-    PyObject *v;
-    co = PyAST_CompileObject(mod, filename, flags, -1, arena);
+    PyThreadState *tstate = _PyThreadState_GET();
+    PyCodeObject *co = PyAST_CompileObject(mod, filename, flags, -1, arena);
     if (co == NULL)
         return NULL;
 
-    if (PySys_Audit("exec", "O", co) < 0) {
+    if (_PySys_Audit(tstate, "exec", "O", co) < 0) {
         Py_DECREF(co);
         return NULL;
     }
 
-    v = run_eval_code_obj(co, globals, locals);
+    PyObject *v = run_eval_code_obj(tstate, co, globals, locals);
     Py_DECREF(co);
     return v;
 }
@@ -1154,6 +1154,7 @@
 run_pyc_file(FILE *fp, const char *filename, PyObject *globals,
              PyObject *locals, PyCompilerFlags *flags)
 {
+    PyThreadState *tstate = _PyThreadState_GET();
     PyCodeObject *co;
     PyObject *v;
     long magic;
@@ -1182,7 +1183,7 @@
     }
     fclose(fp);
     co = (PyCodeObject *)v;
-    v = run_eval_code_obj(co, globals, locals);
+    v = run_eval_code_obj(tstate, co, globals, locals);
     if (v && flags)
         flags->cf_flags |= (co->co_flags & PyCF_MASK);
     Py_DECREF(co);