Mercurial > cpython-lru_cache-weakref

annotate Modules/fpectlmodule.c @ 80661:94de77bd0b4b 2.7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents fd25030223b0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
1 /*
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
2 ---------------------------------------------------------------------
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
3 / Copyright (c) 1996. \
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
4 | The Regents of the University of California. |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
5 | All rights reserved. |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
6 | |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
7 | Permission to use, copy, modify, and distribute this software for |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
8 | any purpose without fee is hereby granted, provided that this en- |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
9 | tire notice is included in all copies of any software which is or |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
10 | includes a copy or modification of this software and in all |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
11 | copies of the supporting documentation for such software. |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
12 | |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
13 | This work was produced at the University of California, Lawrence |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
14 | Livermore National Laboratory under contract no. W-7405-ENG-48 |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
15 | between the U.S. Department of Energy and The Regents of the |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
16 | University of California for the operation of UC LLNL. |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
17 | |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
18 | DISCLAIMER |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
19 | |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
20 | This software was prepared as an account of work sponsored by an |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
21 | agency of the United States Government. Neither the United States |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
22 | Government nor the University of California nor any of their em- |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
23 | ployees, makes any warranty, express or implied, or assumes any |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
24 | liability or responsibility for the accuracy, completeness, or |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
25 | usefulness of any information, apparatus, product, or process |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
26 | disclosed, or represents that its use would not infringe |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
27 | privately-owned rights. Reference herein to any specific commer- |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
28 | cial products, process, or service by trade name, trademark, |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
29 | manufacturer, or otherwise, does not necessarily constitute or |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
30 | imply its endorsement, recommendation, or favoring by the United |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
31 | States Government or the University of California. The views and |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
32 | opinions of authors expressed herein do not necessarily state or |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
33 | reflect those of the United States Government or the University |
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
34 | of California, and shall not be used for advertising or product |
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
35 \ endorsement purposes. /
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
36 ---------------------------------------------------------------------
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
37 */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
38
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
39 /*
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
40 Floating point exception control module.
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
41
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
42 This Python module provides bare-bones control over floating point
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
43 units from several hardware manufacturers. Specifically, it allows
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
44 the user to turn on the generation of SIGFPE whenever any of the
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
45 three serious IEEE 754 exceptions (Division by Zero, Overflow,
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
46 Invalid Operation) occurs. We currently ignore Underflow and
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
47 Inexact Result exceptions, although those could certainly be added
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
48 if desired.
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
49
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
50 The module also establishes a signal handler for SIGFPE during
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
51 initialization. This builds on code found in the Python
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
52 distribution at Include/pyfpe.h and Python/pyfpe.c. If those files
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
53 are not in your Python distribution, find them in a patch at
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
54 ftp://icf.llnl.gov/pub/python/busby/patches.961108.tgz.
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
55
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
56 This module is only useful to you if it happens to include code
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
57 specific for your hardware and software environment. If you can
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
58 contribute OS-specific code for new platforms, or corrections for
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
59 the code provided, it will be greatly appreciated.
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
60
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
61 ** Version 1.0: September 20, 1996. Lee Busby, LLNL.
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
62 */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
63
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
64 #ifdef __cplusplus
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
65 extern "C" {
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
66 #endif
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
67
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
68 #include "Python.h"
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
69 #include <signal.h>
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
70
14683
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
71 #if defined(__FreeBSD__)
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
72 # include <ieeefp.h>
39043
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
73 #elif defined(__VMS)
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
74 #define __NEW_STARLET
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
75 #include <starlet.h>
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
76 #include <ieeedef.h>
14683
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
77 #endif
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
78
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
79 #ifndef WANT_SIGFPE_HANDLER
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
80 /* Define locally if they are not defined in Python. This gives only
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
81 * the limited control to induce a core dump in case of an exception.
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
82 */
5196
8ee81ef4e982 Include setjmp.h so it compiles if WANT_SIGFPE_HANDLER is undefined.
Guido van Rossum <guido@python.org>
parents: 5120
diff changeset
83 #include <setjmp.h>
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
84 static jmp_buf PyFPE_jbuf;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
85 static int PyFPE_counter = 0;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
86 #endif
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
87
13676
5423b132bc97 Removed all instances of RETSIGTYPE from the source code: signal
Tim Peters <tim.peters@gmail.com>
parents: 10617
diff changeset
88 typedef void Sigfunc(int);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
89 static Sigfunc sigfpe_handler;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
90 static void fpe_reset(Sigfunc *);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
91
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
92 static PyObject *fpe_error;
24471
f66b3a3509c7 Excise DL_EXPORT/DL_IMPORT from Modules/*. Required adding a prototype
Mark Hammond <mhammond@skippinet.com.au>
parents: 21859
diff changeset
93 PyMODINIT_FUNC initfpectl(void);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
94 static PyObject *turnon_sigfpe (PyObject *self,PyObject *args);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
95 static PyObject *turnoff_sigfpe (PyObject *self,PyObject *args);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
96
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
97 static PyMethodDef fpectl_methods[] = {
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
98 {"turnon_sigfpe", (PyCFunction) turnon_sigfpe, METH_VARARGS},
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
99 {"turnoff_sigfpe", (PyCFunction) turnoff_sigfpe, METH_VARARGS},
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
100 {0,0}
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
101 };
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
102
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
103 static PyObject *turnon_sigfpe(PyObject *self,PyObject *args)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
104 {
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
105 /* Do any architecture-specific one-time only initialization here. */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
106
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
107 fpe_reset(sigfpe_handler);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
108 Py_INCREF (Py_None);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
109 return Py_None;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
110 }
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
111
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
112 static void fpe_reset(Sigfunc *handler)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
113 {
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
114 /* Reset the exception handling machinery, and reset the signal
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
115 * handler for SIGFPE to the given handler.
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
116 */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
117
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
118 /*-- IRIX -----------------------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
119 #if defined(sgi)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
120 /* See man page on handle_sigfpes -- must link with -lfpe
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
121 * My usage doesn't follow the man page exactly. Maybe somebody
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
122 * else can explain handle_sigfpes to me....
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
123 * cc -c -I/usr/local/python/include fpectlmodule.c
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
124 * ld -shared -o fpectlmodule.so fpectlmodule.o -lfpe
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
125 */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
126 #include <sigfpe.h>
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
127 typedef void user_routine (unsigned[5], int[2]);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
128 typedef void abort_routine (unsigned long);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
129 handle_sigfpes(_OFF, 0,
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
130 (user_routine *)0,
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
131 _TURN_OFF_HANDLER_ON_ERROR,
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
132 NULL);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
133 handle_sigfpes(_ON, _EN_OVERFL | _EN_DIVZERO | _EN_INVALID,
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
134 (user_routine *)0,
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
135 _ABORT_ON_ERROR,
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
136 NULL);
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
137 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
138
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
139 /*-- SunOS and Solaris ----------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
140 #elif defined(sun)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
141 /* References: ieee_handler, ieee_sun, ieee_functions, and ieee_flags
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
142 man pages (SunOS or Solaris)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
143 cc -c -I/usr/local/python/include fpectlmodule.c
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
144 ld -G -o fpectlmodule.so -L/opt/SUNWspro/lib fpectlmodule.o -lsunmath -lm
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
145 */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
146 #include <math.h>
17009
99de4bf2b9e5 Define sunmath prototypes if sunmath.h was not included.
Martin v. Löwis <martin@v.loewis.de>
parents: 15713
diff changeset
147 #ifndef _SUNMATH_H
99de4bf2b9e5 Define sunmath prototypes if sunmath.h was not included.
Martin v. Löwis <martin@v.loewis.de>
parents: 15713
diff changeset
148 extern void nonstandard_arithmetic(void);
99de4bf2b9e5 Define sunmath prototypes if sunmath.h was not included.
Martin v. Löwis <martin@v.loewis.de>
parents: 15713
diff changeset
149 extern int ieee_flags(const char*, const char*, const char*, char **);
99de4bf2b9e5 Define sunmath prototypes if sunmath.h was not included.
Martin v. Löwis <martin@v.loewis.de>
parents: 15713
diff changeset
150 extern long ieee_handler(const char*, const char*, sigfpe_handler_type);
99de4bf2b9e5 Define sunmath prototypes if sunmath.h was not included.
Martin v. Löwis <martin@v.loewis.de>
parents: 15713
diff changeset
151 #endif
99de4bf2b9e5 Define sunmath prototypes if sunmath.h was not included.
Martin v. Löwis <martin@v.loewis.de>
parents: 15713
diff changeset
152
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
153 char *mode="exception", *in="all", *out;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
154 (void) nonstandard_arithmetic();
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
155 (void) ieee_flags("clearall",mode,in,&out);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
156 (void) ieee_handler("set","common",(sigfpe_handler_type)handler);
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
157 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
158
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
159 /*-- HPUX -----------------------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
160 #elif defined(__hppa) || defined(hppa)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
161 /* References: fpsetmask man page */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
162 /* cc -Aa +z -c -I/usr/local/python/include fpectlmodule.c */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
163 /* ld -b -o fpectlmodule.sl fpectlmodule.o -lm */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
164 #include <math.h>
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
165 fpsetdefaults();
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
166 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
167
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
168 /*-- IBM AIX --------------------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
169 #elif defined(__AIX) || defined(_AIX)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
170 /* References: fp_trap, fp_enable man pages */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
171 #include <fptrap.h>
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
172 fp_trap(FP_TRAP_SYNC);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
173 fp_enable(TRP_INVALID | TRP_DIV_BY_ZERO | TRP_OVERFLOW);
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
174 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
175
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
176 /*-- DEC ALPHA OSF --------------------------------------------------------*/
10617
012d361fdf23 Avoid triggering Alpha OSF/1 specific code on Alpha NT or Linux.
Guido van Rossum <guido@python.org>
parents: 9620
diff changeset
177 #elif defined(__alpha) && defined(__osf__)
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
178 /* References: exception_intro, ieee man pages */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
179 /* cc -c -I/usr/local/python/include fpectlmodule.c */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
180 /* ld -shared -o fpectlmodule.so fpectlmodule.o */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
181 #include <machine/fpu.h>
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
182 unsigned long fp_control =
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
183 IEEE_TRAP_ENABLE_INV | IEEE_TRAP_ENABLE_DZE | IEEE_TRAP_ENABLE_OVF;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
184 ieee_set_fp_control(fp_control);
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
185 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
186
25445
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
187 /*-- DEC ALPHA LINUX ------------------------------------------------------*/
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
188 #elif defined(__alpha) && defined(linux)
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
189 #include <asm/fpu.h>
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
190 unsigned long fp_control =
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
191 IEEE_TRAP_ENABLE_INV | IEEE_TRAP_ENABLE_DZE | IEEE_TRAP_ENABLE_OVF;
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
192 ieee_set_fp_control(fp_control);
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
193 PyOS_setsig(SIGFPE, handler);
db5f1db7b34e Patch for the DEC Alpha under Linux, by Lee Busby.
Guido van Rossum <guido@python.org>
parents: 24471
diff changeset
194
28949
ac487a7f7f2c Patch #708495: Port more stuff to OpenVMS.
Martin v. Löwis <martin@v.loewis.de>
parents: 25445
diff changeset
195 /*-- DEC ALPHA VMS --------------------------------------------------------*/
ac487a7f7f2c Patch #708495: Port more stuff to OpenVMS.
Martin v. Löwis <martin@v.loewis.de>
parents: 25445
diff changeset
196 #elif defined(__ALPHA) && defined(__VMS)
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
197 IEEE clrmsk;
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
198 IEEE setmsk;
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
199 clrmsk.ieee$q_flags =
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
200 IEEE$M_TRAP_ENABLE_UNF | IEEE$M_TRAP_ENABLE_INE |
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
201 IEEE$M_MAP_UMZ;
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
202 setmsk.ieee$q_flags =
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
203 IEEE$M_TRAP_ENABLE_INV | IEEE$M_TRAP_ENABLE_DZE |
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
204 IEEE$M_TRAP_ENABLE_OVF;
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
205 sys$ieee_set_fp_control(&clrmsk, &setmsk, 0);
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
206 PyOS_setsig(SIGFPE, handler);
39043
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
207
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
208 /*-- HP IA64 VMS --------------------------------------------------------*/
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
209 #elif defined(__ia64) && defined(__VMS)
28949
ac487a7f7f2c Patch #708495: Port more stuff to OpenVMS.
Martin v. Löwis <martin@v.loewis.de>
parents: 25445
diff changeset
210 PyOS_setsig(SIGFPE, handler);
ac487a7f7f2c Patch #708495: Port more stuff to OpenVMS.
Martin v. Löwis <martin@v.loewis.de>
parents: 25445
diff changeset
211
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
212 /*-- Cray Unicos ----------------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
213 #elif defined(cray)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
214 /* UNICOS delivers SIGFPE by default, but no matherr */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
215 #ifdef HAS_LIBMSET
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
216 libmset(-1);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
217 #endif
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
218 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
219
14683
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
220 /*-- FreeBSD ----------------------------------------------------------------*/
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
221 #elif defined(__FreeBSD__)
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
222 fpresetsticky(fpgetsticky());
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
223 fpsetmask(FP_X_INV | FP_X_DZ | FP_X_OFL);
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
224 PyOS_setsig(SIGFPE, handler);
14683
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
225
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 /*-- Linux ----------------------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
227 #elif defined(linux)
6855
1ab307951f4e Patch by Oliver Andrich for Lunix using glibc.
Guido van Rossum <guido@python.org>
parents: 6507
diff changeset
228 #ifdef __GLIBC__
1ab307951f4e Patch by Oliver Andrich for Lunix using glibc.
Guido van Rossum <guido@python.org>
parents: 6507
diff changeset
229 #include <fpu_control.h>
1ab307951f4e Patch by Oliver Andrich for Lunix using glibc.
Guido van Rossum <guido@python.org>
parents: 6507
diff changeset
230 #else
6507
a00073f2e087 Some patches to Lee Busby's fpectl mods that accidentally didn't make it
Guido van Rossum <guido@python.org>
parents: 6367
diff changeset
231 #include <i386/fpu_control.h>
6855
1ab307951f4e Patch by Oliver Andrich for Lunix using glibc.
Guido van Rossum <guido@python.org>
parents: 6507
diff changeset
232 #endif
15713
3693abd0eac1 Patch #103012: Update fpectlmodule for current glibc;
Andrew M. Kuchling <amk@amk.ca>
parents: 14719
diff changeset
233 #ifdef _FPU_SETCW
3693abd0eac1 Patch #103012: Update fpectlmodule for current glibc;
Andrew M. Kuchling <amk@amk.ca>
parents: 14719
diff changeset
234 {
3693abd0eac1 Patch #103012: Update fpectlmodule for current glibc;
Andrew M. Kuchling <amk@amk.ca>
parents: 14719
diff changeset
235 fpu_control_t cw = 0x1372;
3693abd0eac1 Patch #103012: Update fpectlmodule for current glibc;
Andrew M. Kuchling <amk@amk.ca>
parents: 14719
diff changeset
236 _FPU_SETCW(cw);
3693abd0eac1 Patch #103012: Update fpectlmodule for current glibc;
Andrew M. Kuchling <amk@amk.ca>
parents: 14719
diff changeset
237 }
3693abd0eac1 Patch #103012: Update fpectlmodule for current glibc;
Andrew M. Kuchling <amk@amk.ca>
parents: 14719
diff changeset
238 #else
6507
a00073f2e087 Some patches to Lee Busby's fpectl mods that accidentally didn't make it
Guido van Rossum <guido@python.org>
parents: 6367
diff changeset
239 __setfpucw(0x1372);
15713
3693abd0eac1 Patch #103012: Update fpectlmodule for current glibc;
Andrew M. Kuchling <amk@amk.ca>
parents: 14719
diff changeset
240 #endif
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
241 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
242
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
243 /*-- Microsoft Windows, NT ------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
244 #elif defined(_MSC_VER)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
245 /* Reference: Visual C++ Books Online 4.2,
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
246 Run-Time Library Reference, _control87, _controlfp */
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
247 #include <float.h>
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
248 unsigned int cw = _EM_INVALID | _EM_ZERODIVIDE | _EM_OVERFLOW;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
249 (void)_controlfp(0, cw);
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
250 PyOS_setsig(SIGFPE, handler);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
251
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
252 /*-- Give Up --------------------------------------------------------------*/
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
253 #else
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
254 fputs("Operation not implemented\n", stderr);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 #endif
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
256
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 }
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
258
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
259 static PyObject *turnoff_sigfpe(PyObject *self,PyObject *args)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
260 {
14683
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
261 #ifdef __FreeBSD__
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
262 fpresetsticky(fpgetsticky());
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
263 fpsetmask(0);
39043
c67b23397f30 Patch #1516912: improve Modules support for OpenVMS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36324
diff changeset
264 #elif defined(__VMS)
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
265 IEEE clrmsk;
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
266 clrmsk.ieee$q_flags =
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
267 IEEE$M_TRAP_ENABLE_UNF | IEEE$M_TRAP_ENABLE_INE |
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
268 IEEE$M_MAP_UMZ | IEEE$M_TRAP_ENABLE_INV |
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
269 IEEE$M_TRAP_ENABLE_DZE | IEEE$M_TRAP_ENABLE_OVF |
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
270 IEEE$M_INHERIT;
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
271 sys$ieee_set_fp_control(&clrmsk, 0, 0);
14683
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
272 #else
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
273 fputs("Operation not implemented\n", stderr);
14683
edf1e15c671a Randall Hopper: Add fpectl functionality patch for FreeBSD.
Guido van Rossum <guido@python.org>
parents: 13676
diff changeset
274 #endif
14719
870237089ba2 Use PyOS_setsig() instead of signal(). Also remove redundant spaces
Guido van Rossum <guido@python.org>
parents: 14683
diff changeset
275 Py_INCREF(Py_None);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
276 return Py_None;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
277 }
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
278
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
279 static void sigfpe_handler(int signo)
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
280 {
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
281 fpe_reset(sigfpe_handler);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
282 if(PyFPE_counter) {
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
283 longjmp(PyFPE_jbuf, 1);
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
284 } else {
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
285 Py_FatalError("Unprotected floating point exception");
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
286 }
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 }
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
288
24471
f66b3a3509c7 Excise DL_EXPORT/DL_IMPORT from Modules/*. Required adding a prototype
Mark Hammond <mhammond@skippinet.com.au>
parents: 21859
diff changeset
289 PyMODINIT_FUNC initfpectl(void)
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
290 {
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
291 PyObject *m, *d;
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
292 m = Py_InitModule("fpectl", fpectl_methods);
36324
1af7f719ed28 Check return result from Py_InitModule*(). This API can fail.
Neal Norwitz <nnorwitz@gmail.com>
parents: 28949
diff changeset
293 if (m == NULL)
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
294 return;
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
295 d = PyModule_GetDict(m);
6367
2c29b8982643 Apply two changes, systematically:
Guido van Rossum <guido@python.org>
parents: 5380
diff changeset
296 fpe_error = PyErr_NewException("fpectl.error", NULL, NULL);
2c29b8982643 Apply two changes, systematically:
Guido van Rossum <guido@python.org>
parents: 5380
diff changeset
297 if (fpe_error != NULL)
61463
fd25030223b0 Untabify C files. Will watch buildbots.
Antoine Pitrou <solipsis@pitrou.net>
parents: 39043
diff changeset
298 PyDict_SetItemString(d, "error", fpe_error);
5120
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
299 }
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
300
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
301 #ifdef __cplusplus
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
302 }
a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
diff changeset
303 #endif