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https://github.com/python/cpython
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4643bd9a9c
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.
25 lines
560 B
C
25 lines
560 B
C
/* Minimal main program -- everything is loaded from the library */
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#include "Python.h"
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#ifdef __FreeBSD__
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#include <floatingpoint.h>
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#endif
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int
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main(int argc, char **argv)
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{
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/* 754 requires that FP exceptions run in "no stop" mode by default,
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* and until C vendors implement C99's ways to control FP exceptions,
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* Python requires non-stop mode. Alas, some platforms enable FP
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* exceptions by default. Here we disable them.
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*/
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#ifdef __FreeBSD__
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fp_except_t m;
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m = fpgetmask();
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fpsetmask(m & ~FP_X_OFL);
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#endif
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return Py_Main(argc, argv);
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}
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