glibc/sysdeps/m68k/__longjmp.c
Roland McGrath 69c85398db Sun Jan 14 17:51:09 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* misc/efgcvt_r.c (ecvt_r): Handle negative values.

	* stdlib/stdlib.h: Replace __CONSTVALUE by attribute.
	* stdlib/abs.c, stdlib/div.c, stdlib/labs.c, stdlib/ldiv.c,
	sysdeps/generic/hypot.c: Remove obsolete __CONSTVALUE.

	* stdio-common/printf_fp.c (__printf_fp): Fix parameter
	declaration.

	* sysdeps/generic/putenv.c (putenv): Fix second argument of
	setenv.

	* sysdeps/ieee754/hypot.c: New file, extracted out of cabs.c.
	* sysdeps/ieee754/cabs.c: Don't define hypot here.

	* sysdeps/ieee754/ieee754.h (union ieee854_long_double): Fix
	definition of ieee_nan alternative.

	* sysdeps/m68k/__longjmp.c, sysdeps/m68k/setjmp.c: Add register
 	prefix spec.

	* sysdeps/m68k/ffs.c (ffs): Fix register constraint.

	* sysdeps/m68k/fpu/__math.h: Include <errno.h>.  Replace obsolete
	__CONSTVALUE by attribute.
	(floor): Round to negative infinity.
	(rint, expm1) [__NO_MATH_INLINES]: Don't define, to avoid type
	clash when compiling source.
	(pow): Handle x == 0 and x < 0.
	(ceil, __isinf, __isnan): Fix register constraints.
	(__isinfl, __isnanl): Added.
	* sysdeps/m68k/fpu/acos.c, sysdeps/m68k/fpu/atan2.c,
	sysdeps/m68k/fpu/fmod.c, sysdeps/m68k/fpu/ldexp.c,
	sysdeps/m68k/fpu/pow.c: Remove obsolete __CONSTVALUE.

	* sysdeps/m68k/bsd-_setjmp.S, sysdeps/m68k/bsd-setjmp.S: Fix
	assembler syntax.

	* sysdeps/unix/bsd/bsd4.4/fchdir.S (fchdir): Take only one
 	argument.

	* sysdeps/unix/bsd/clock.c (timeval_to_clock_t): Fix timeval to
	clock_t conversion.
	(clock): Don't multiply by CLOCKS_PER_SEC.

	* sysdeps/unix/bsd/poll.c (poll): Fix msec to timeval conversion.

	* sysdeps/unix/bsd/sun/m68k/brk.S (brk): Compare with address of
	__end.

	* sysdeps/unix/bsd/sun/m68k/vfork.S: Fix assembler syntax.

	* sysdeps/unix/bsd/ualarm.c (ualarm): Fix timeval calculation.

	* sysdeps/unix/bsd/vax/vfork.S: Remove duplicate label.
1996-01-17 02:02:35 +00:00

56 lines
1.9 KiB
C

/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <setjmp.h>
#include <stdlib.h>
/* Jump to the position specified by ENV, causing the
setjmp call there to return VAL, or 1 if VAL is 0. */
void
__longjmp (__jmp_buf env, int val)
{
/* This restores the FP and SP that setjmp's caller had,
and puts the return address into A0 and VAL into D0. */
#if defined(__HAVE_68881__) || defined(__HAVE_FPU__)
/* Restore the floating-point registers. */
asm volatile("fmovem%.x %0, %/fp0-%/fp7" :
/* No outputs. */ : "g" (env[0].__fpregs[0]));
#endif
/* Put VAL in D0. */
asm volatile("move%.l %0, %/d0" : /* No outputs. */ :
"g" (val == 0 ? 1 : val) : "d0");
asm volatile(/* Restore the data and address registers. */
"movem%.l %0, %/d1-%/d7/%/a0-%/a7\n"
/* Return to setjmp's caller. */
#ifdef __motorola__
"jmp (%/a0)"
#else
"jmp %/a0@"
#endif
: /* No outputs. */ : "g" (env[0].__dregs[0])
/* We don't bother with the clobbers,
because this code always jumps out anyway. */
);
/* This call avoids `volatile function does return' warnings. */
abort ();
}