mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/* Raise given exceptions.
|
|
Copyright (C) 1997-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <fenv.h>
|
|
#include <float.h>
|
|
#include <math.h>
|
|
#include <shlib-compat.h>
|
|
|
|
int
|
|
__feraiseexcept (int excepts)
|
|
{
|
|
static const struct {
|
|
double zero, one, max, min, pi;
|
|
} c = {
|
|
0.0, 1.0, DBL_MAX, DBL_MIN, M_PI
|
|
};
|
|
double d;
|
|
|
|
/* Raise exceptions represented by EXPECTS. But we must raise only
|
|
one signal at a time. It is important the if the overflow/underflow
|
|
exception and the inexact exception are given at the same time,
|
|
the overflow/underflow exception follows the inexact exception. */
|
|
|
|
/* First: invalid exception. */
|
|
if ((FE_INVALID & excepts) != 0)
|
|
{
|
|
/* One example of an invalid operation is 0/0. */
|
|
__asm ("" : "=e" (d) : "0" (c.zero));
|
|
d /= c.zero;
|
|
__asm __volatile ("" : : "e" (d));
|
|
}
|
|
|
|
/* Next: division by zero. */
|
|
if ((FE_DIVBYZERO & excepts) != 0)
|
|
{
|
|
__asm ("" : "=e" (d) : "0" (c.one));
|
|
d /= c.zero;
|
|
__asm __volatile ("" : : "e" (d));
|
|
}
|
|
|
|
/* Next: overflow. */
|
|
if ((FE_OVERFLOW & excepts) != 0)
|
|
{
|
|
__asm ("" : "=e" (d) : "0" (c.max));
|
|
d *= d;
|
|
__asm __volatile ("" : : "e" (d));
|
|
}
|
|
|
|
/* Next: underflow. */
|
|
if ((FE_UNDERFLOW & excepts) != 0)
|
|
{
|
|
__asm ("" : "=e" (d) : "0" (c.min));
|
|
d *= d;
|
|
__asm __volatile ("" : : "e" (d));
|
|
}
|
|
|
|
/* Last: inexact. */
|
|
if ((FE_INEXACT & excepts) != 0)
|
|
{
|
|
__asm ("" : "=e" (d) : "0" (c.one));
|
|
d /= c.pi;
|
|
__asm __volatile ("" : : "e" (d));
|
|
}
|
|
|
|
/* Success. */
|
|
return 0;
|
|
}
|
|
|
|
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
|
|
strong_alias (__feraiseexcept, __old_feraiseexcept)
|
|
compat_symbol (libm, __old_feraiseexcept, feraiseexcept, GLIBC_2_1);
|
|
#endif
|
|
|
|
libm_hidden_def (__feraiseexcept)
|
|
libm_hidden_ver (__feraiseexcept, feraiseexcept)
|
|
versioned_symbol (libm, __feraiseexcept, feraiseexcept, GLIBC_2_2);
|