Mercurial > cpython-lru_cache-weakref
view Modules/python.c @ 26815:8eccfae04bb4 legacy-trunk
Apparently FreeBSD enables some HW floating-point exceptions by default.
This can cause core dumps when Python runs. Python relies on the 754-
(and C99-) mandated default "non-stop" mode for FP exceptions. This
patch from Ben Laurie disables at least one FP exception on FreeBSD at
Python startup time.
| author | Tim Peters <tim.peters@gmail.com> |
|---|---|
| date | Sat, 28 Dec 2002 21:56:08 +0000 |
| parents | f66b3a3509c7 |
| children | 22a74eaf6b22 |
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/* Minimal main program -- everything is loaded from the library */ #include "Python.h" #ifdef __FreeBSD__ #include <floatingpoint.h> #endif int main(int argc, char **argv) { /* 754 requires that FP exceptions run in "no stop" mode by default, * and until C vendors implement C99's ways to control FP exceptions, * Python requires non-stop mode. Alas, some platforms enable FP * exceptions by default. Here we disable them. */ #ifdef __FreeBSD__ fp_except_t m; m = fpgetmask(); fpsetmask(m & ~FP_X_OFL); #endif return Py_Main(argc, argv); }
