exec_file crash on Debug mode (Win 10)

Aucun fichier du dépôt ni aucun test n’est nommé. Reproduisez le crash dans la configuration de débogage indiquée avec Windows 10, VS2019, VC142 et Python 3.10, puis comparez le chemin exec_file défaillant utilisant PyRun_File avec les chemins fonctionnels PyRun_SimpleFile et _Py_fopen_obj. C’est terminé lorsque embedding.py s’exécute en mode débogage sans le crash signalé.

I face a crash on build 1.78 of boost python, on Windows 10, VS2019, VC142, Python 3.10 only on debug mode. Here is the script

#ifdef _DEBUG

#undef _DEBUG

#endif
#define PY_SSIZE_T_CLEAN
#include <Python.h>
int main(int argc, char* argv[])
{
	Py_Initialize();
	char* f = const_cast<char*>("E:\\Projects\\TestBoostPython\\embedding.py");
	PyObject* fo = Py_BuildValue("s", f);
	PyObject* fb = Py_None;
	PyUnicode_FSConverter(fo, &fb);
	char* f_as_uft = PyBytes_AsString(fb);
	FILE* fs = fopen(f_as_uft, "r+");
	Py_DECREF(fo);
	Py_DECREF(fb);
	PyObject* result = PyRun_File(fs,
		f,
		Py_file_input,
		nullptr, nullptr);
	fclose(fs);
	Py_FinalizeEx();
	return 0;
}

which is exactly the exec_file of boost python.

The call stack is

	ucrtbase.dll!_invoke_watson()	Unknown
 	ucrtbase.dll!_invalid_parameter()	Unknown
 	ucrtbase.dll!_invalid_parameter_noinfo()	Unknown
 	ucrtbase.dll!_read()	Unknown
 	ucrtbase.dll!common_refill_and_read_nolock<char>()	Unknown
 	ucrtbase.dll!fgetc()	Unknown
	python310.dll!check_bom(int(*)(tok_state *) get_char, void(*)(int, tok_state *) unget_char, int(*)(tok_state *, const char *) tok, tok_state *) Line 267	C
 	python310.dll!tok_underflow_file(tok_state * tok) Line 944	C
 	[Inline Frame] python310.dll!tok_nextc(tok_state *) Line 1042	C
 	python310.dll!tok_get(tok_state * tok, const char * * p_start, const char * * p_end) Line 1366	C
 	[Inline Frame] python310.dll!PyTokenizer_Get(tok_state * tok, const char * *) Line 2053	C
 	python310.dll!_PyPegen_fill_token(Parser * p) Line 745	C
 	[Inline Frame] python310.dll!_PyPegen_expect_token(Parser *) Line 900	C
 	[Inline Frame] python310.dll!_tmp_15_rule(Parser *) Line 22816	C
 	[Inline Frame] python310.dll!_PyPegen_lookahead(int) Line 891	C
 	python310.dll!compound_stmt_rule(Parser * p) Line 2145	C
 	[Inline Frame] python310.dll!statement_rule(Parser *) Line 1490	C
 	[Inline Frame] python310.dll!_loop1_11_rule(Parser *) Line 22574	C
 	[Inline Frame] python310.dll!statements_rule(Parser *) Line 1446	C
 	python310.dll!file_rule(Parser * p) Line 957	C
 	python310.dll!_PyPegen_parse(Parser * p) Line 34511	C
 	python310.dll!_PyPegen_run_parser(Parser * p) Line 1325	C
 	[Inline Frame] python310.dll!_PyPegen_run_parser_from_file_pointer(_iobuf *) Line 1423	C
 	python310.dll!_PyParser_ASTFromFile(_iobuf * fp, _object * filename_ob, const char * enc, int mode, const char * ps1, const char * ps2, PyCompilerFlags * flags, int * errcode, _arena * arena) Line 26	C
 	python310.dll!pyrun_file(_iobuf * fp, _object * filename, int start, _object * globals, _object * locals, int closeit, PyCompilerFlags * flags) Line 1199	C
 	python310.dll!PyRun_FileExFlags(_iobuf * fp, const char * filename, int start, _object * globals, _object * locals, int closeit, PyCompilerFlags * flags) Line 1230	C

However the following code runs smoothly on the same environment

#ifdef _DEBUG
#undef _DEBUG
#endif

#define PY_SSIZE_T_CLEAN
#include <Python.h>

int main(int argc, char* argv[])
{
	Py_Initialize();
	char* f = const_cast<char*>("E:\\Projects\\TestBoostPython\\embedding.py");
	PyObject* obj = Py_BuildValue("s", f);
	FILE* file = _Py_fopen_obj(obj, "r+");
	if (file != NULL) {
		PyRun_SimpleFile(file, f);
	}
	Py_Finalize();
}