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This patch adds the narrowing subtract functions from TS 18661-1 to glibc's libm: fsub, fsubl, dsubl, f32subf64, f32subf32x, f32xsubf64 for all configurations; f32subf64x, f32subf128, f64subf64x, f64subf128, f32xsubf64x, f32xsubf128, f64xsubf128 for configurations with _Float64x and _Float128; __nldbl_dsubl for ldbl-opt. The changes are essentially the same as for the narrowing add functions, so the description of those generally applies to this patch as well. Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft float) and powerpc, and with build-many-glibcs.py. * math/Makefile (libm-narrow-fns): Add sub. (libm-test-funcs-narrow): Likewise. * math/Versions (GLIBC_2.28): Add narrowing subtract functions. * math/bits/mathcalls-narrow.h (sub): Use __MATHCALL_NARROW. * math/gen-auto-libm-tests.c (test_functions): Add sub. * math/math-narrow.h (CHECK_NARROW_SUB): New macro. (NARROW_SUB_ROUND_TO_ODD): Likewise. (NARROW_SUB_TRIVIAL): Likewise. * sysdeps/ieee754/float128/float128_private.h (__fsubl): New macro. (__dsubl): Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fsub and dsub. (CFLAGS-nldbl-dsub.c): New variable. (CFLAGS-nldbl-fsub.c): Likewise. * sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add __nldbl_dsubl. * sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_dsubl): New prototype. * manual/arith.texi (Misc FP Arithmetic): Document fsub, fsubl, dsubl, fMsubfN, fMsubfNx, fMxsubfN and fMxsubfNx. * math/auto-libm-test-in: Add tests of sub. * math/auto-libm-test-out-narrow-sub: New generated file. * math/libm-test-narrow-sub.inc: New file. * sysdeps/i386/fpu/s_f32xsubf64.c: Likewise. * sysdeps/ieee754/dbl-64/s_f32xsubf64.c: Likewise. * sysdeps/ieee754/dbl-64/s_fsub.c: Likewise. * sysdeps/ieee754/float128/s_f32subf128.c: Likewise. * sysdeps/ieee754/float128/s_f64subf128.c: Likewise. * sysdeps/ieee754/float128/s_f64xsubf128.c: Likewise. * sysdeps/ieee754/ldbl-128/s_dsubl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_f64xsubf128.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fsubl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_dsubl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fsubl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_dsubl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fsubl.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-dsub.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-fsub.c: Likewise. * sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise. * sysdeps/ieee754/soft-fp/s_fsub.c: Likewise. * sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise. * sysdeps/powerpc/fpu/libm-test-ulps: Update. * sysdeps/mach/hurd/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/* Prototypes for compatibility double == long double entry points.
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Copyright (C) 2006-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@cygnus.com>, 2006.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef __NLDBL_COMPAT_H
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#define __NLDBL_COMPAT_H 1
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/* Avoid long double prototypes. */
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#define __NO_LONG_DOUBLE_MATH 1
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <printf.h>
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#include <wchar.h>
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#include <math.h>
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#include <monetary.h>
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#include <sys/syslog.h>
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/* Declare the __nldbl_NAME function the wrappers call that's in libc.so. */
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#define NLDBL_DECL(name) extern __typeof (name) __nldbl_##name
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NLDBL_DECL (_IO_vfscanf);
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NLDBL_DECL (vfscanf);
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NLDBL_DECL (vfwscanf);
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NLDBL_DECL (obstack_vprintf);
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NLDBL_DECL (vasprintf);
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NLDBL_DECL (dprintf);
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NLDBL_DECL (vdprintf);
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NLDBL_DECL (fprintf);
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NLDBL_DECL (vfprintf);
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NLDBL_DECL (vfwprintf);
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NLDBL_DECL (vsnprintf);
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NLDBL_DECL (vsprintf);
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NLDBL_DECL (vsscanf);
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NLDBL_DECL (vswprintf);
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NLDBL_DECL (vswscanf);
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NLDBL_DECL (__asprintf);
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NLDBL_DECL (asprintf);
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NLDBL_DECL (__printf_fp);
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NLDBL_DECL (printf_size);
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NLDBL_DECL (syslog);
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NLDBL_DECL (vsyslog);
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NLDBL_DECL (qecvt);
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NLDBL_DECL (qfcvt);
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NLDBL_DECL (qgcvt);
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NLDBL_DECL (__vstrfmon_l);
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NLDBL_DECL (__isoc99_scanf);
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NLDBL_DECL (__isoc99_fscanf);
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NLDBL_DECL (__isoc99_sscanf);
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NLDBL_DECL (__isoc99_vscanf);
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NLDBL_DECL (__isoc99_vfscanf);
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NLDBL_DECL (__isoc99_vsscanf);
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NLDBL_DECL (__isoc99_wscanf);
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NLDBL_DECL (__isoc99_fwscanf);
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NLDBL_DECL (__isoc99_swscanf);
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NLDBL_DECL (__isoc99_vwscanf);
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NLDBL_DECL (__isoc99_vfwscanf);
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NLDBL_DECL (__isoc99_vswscanf);
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/* This one does not exist in the normal interface, only
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__nldbl___vstrfmon really exists. */
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extern ssize_t __nldbl___vstrfmon (char *, size_t, const char *, va_list)
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__THROW;
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/* These don't use __typeof because they were not declared by the headers,
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since we don't compile with _FORTIFY_SOURCE. */
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extern int __nldbl___vfprintf_chk (FILE *__restrict, int,
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const char *__restrict, __gnuc_va_list);
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extern int __nldbl___vfwprintf_chk (FILE *__restrict, int,
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const wchar_t *__restrict, __gnuc_va_list);
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extern int __nldbl___vsprintf_chk (char *__restrict, int, size_t,
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const char *__restrict, __gnuc_va_list)
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__THROW;
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extern int __nldbl___vsnprintf_chk (char *__restrict, size_t, int, size_t,
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const char *__restrict, __gnuc_va_list)
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__THROW;
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extern int __nldbl___vswprintf_chk (wchar_t *__restrict, size_t, int, size_t,
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const wchar_t *__restrict, __gnuc_va_list)
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__THROW;
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extern int __nldbl___vasprintf_chk (char **, int, const char *, __gnuc_va_list)
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__THROW;
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extern int __nldbl___vdprintf_chk (int, int, const char *, __gnuc_va_list);
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extern int __nldbl___obstack_vprintf_chk (struct obstack *, int, const char *,
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__gnuc_va_list) __THROW;
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extern void __nldbl___vsyslog_chk (int, int, const char *, va_list);
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/* The original declarations of these were hidden by the including
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file. */
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extern double __nldbl_daddl (double, double) __THROW;
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extern double __nldbl_dsubl (double, double) __THROW;
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#endif /* __NLDBL_COMPAT_H */
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