Mercurial > hg
view contrib/fuzz/pyutil.cc @ 49680:40e24d82b513
delta-find: make sure we only use newer full snapshot as candidate
The current code does not needs to protect against this, as there are no older
snapshot in the current cache. However as we are getting ready to reuse this
cache from one revision to another, we need the code to protect itself about
what's coming.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Sun, 06 Nov 2022 17:55:55 -0500 |
parents | ee5f27d7b9fb |
children |
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#include "pyutil.h" #include <iostream> #include <string> namespace contrib { #if PY_MAJOR_VERSION >= 3 #define HG_FUZZER_PY3 1 PyMODINIT_FUNC PyInit_parsers(void); #else PyMODINIT_FUNC initparsers(void); #endif static char cpypath[8192] = "\0"; static PyObject *mainmod; static PyObject *globals; void initpy(const char *cselfpath) { #ifdef HG_FUZZER_PY3 const std::string subdir = "/sanpy/lib/python3.8"; #else const std::string subdir = "/sanpy/lib/python2.7"; #endif /* HACK ALERT: we need a full Python installation built without pymalloc and with ASAN, so we dump one in $OUT/sanpy/lib/python2.7. This helps us wire that up. */ std::string selfpath(cselfpath); std::string pypath; auto pos = selfpath.rfind("/"); if (pos == std::string::npos) { char wd[8192]; if (!getcwd(wd, 8192)) { std::cerr << "Failed to call getcwd: errno " << errno << std::endl; exit(1); } pypath = std::string(wd) + subdir; } else { pypath = selfpath.substr(0, pos) + subdir; } strncpy(cpypath, pypath.c_str(), pypath.size()); setenv("PYTHONPATH", cpypath, 1); setenv("PYTHONNOUSERSITE", "1", 1); /* prevent Python from looking up users in the fuzz environment */ setenv("PYTHONUSERBASE", cpypath, 1); #ifdef HG_FUZZER_PY3 std::wstring wcpypath(pypath.begin(), pypath.end()); Py_SetPythonHome(wcpypath.c_str()); #else Py_SetPythonHome(cpypath); #endif Py_InitializeEx(0); mainmod = PyImport_AddModule("__main__"); globals = PyModule_GetDict(mainmod); #ifdef HG_FUZZER_PY3 PyObject *mod = PyInit_parsers(); #else initparsers(); PyObject *mod = PyImport_ImportModule("parsers"); #endif PyDict_SetItemString(globals, "parsers", mod); } PyObject *pyglobals() { return globals; } } // namespace contrib