From bd78530f155fa3c5c57af42457541072326fe16a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 1 Jun 1998 13:41:16 +0000 Subject: Update. 1998-05-31 Philip Blundell * sysdeps/unix/sysv/linux/arm/sysdep.S: Use C_SYMBOL_NAME when referring to errno and _errno. * sysdeps/arm/fpu/feholdexcpt.c: New file. * sysdeps/i386/fpu_control.h: Fix typo. * sysdeps/arm/bits/setjmp.h (__jmp_buf): Remove floating-point support. (_JMPBUF_UNWINDS): Added. * sysdeps/arm/fpu/bits/setjmp.h: New file. 1998-05-25 Gordon Matzigkeit * sysdeps/mach/hurd/Makefile: Use the `before-compile' target in order to build header files, not `generated'. * Rules (before-compile): New target which depends on all $(before-compile) files. --- sysdeps/arm/bits/setjmp.h | 14 +++++++++----- sysdeps/arm/fpu/bits/setjmp.h | 36 ++++++++++++++++++++++++++++++++++++ sysdeps/arm/fpu/feholdexcpt.c | 37 +++++++++++++++++++++++++++++++++++++ 3 files changed, 82 insertions(+), 5 deletions(-) create mode 100644 sysdeps/arm/fpu/bits/setjmp.h create mode 100644 sysdeps/arm/fpu/feholdexcpt.c (limited to 'sysdeps/arm') diff --git a/sysdeps/arm/bits/setjmp.h b/sysdeps/arm/bits/setjmp.h index ea25a9ba87..6d8737970b 100644 --- a/sysdeps/arm/bits/setjmp.h +++ b/sysdeps/arm/bits/setjmp.h @@ -23,10 +23,14 @@ #endif #ifndef _ASM -/* Jump buffer contains v1-v6, sl, fp, sp, pc and (f4-f7) if we do FP. */ -# if __ARM_USES_FP -typedef int __jmp_buf[22]; -# else +/* Jump buffer contains v1-v6, sl, fp, sp and pc. Other registers are not + saved. */ typedef int __jmp_buf[10]; -# endif #endif + +#define __JMP_BUF_SP 8 + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP])) diff --git a/sysdeps/arm/fpu/bits/setjmp.h b/sysdeps/arm/fpu/bits/setjmp.h new file mode 100644 index 0000000000..895356fe0a --- /dev/null +++ b/sysdeps/arm/fpu/bits/setjmp.h @@ -0,0 +1,36 @@ +/* Copyright (C) 1997, 1998 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Define the machine-dependent type `jmp_buf'. ARM version. */ + +#ifndef _SETJMP_H +# error "Never include directly; use instead." +#endif + +#ifndef _ASM +/* Jump buffer contains v1-v6, sl, fp, sp and pc. Other registers are not + saved. */ +typedef int __jmp_buf[22]; +#endif + +#define __JMP_BUF_SP 8 + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP])) diff --git a/sysdeps/arm/fpu/feholdexcpt.c b/sysdeps/arm/fpu/feholdexcpt.c new file mode 100644 index 0000000000..5679ccc243 --- /dev/null +++ b/sysdeps/arm/fpu/feholdexcpt.c @@ -0,0 +1,37 @@ +/* Store current floating-point environment and clear exceptions. + Copyright (C) 1997, 1998 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include + +int +feholdexcept (fenv_t *envp) +{ + unsigned long int temp; + + /* Store the environment. */ + _FPU_GETCW(temp); + envp->cw = temp; + + /* Now set all exceptions to non-stop. */ + temp &= ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT); + _FPU_SETCW(temp); + + return 1; +} -- cgit v1.2.3