mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +00:00
7176f4e4b5
* 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.
56 lines
1.8 KiB
ArmAsm
56 lines
1.8 KiB
ArmAsm
/* 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 <sysdep.h>
|
|
|
|
#ifndef SYS_vfork
|
|
#define SYS_vfork 66
|
|
#endif
|
|
|
|
/* Clone the calling process, but without copying the whole address space.
|
|
The the calling process is suspended until the the new process exits or is
|
|
replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
|
|
and the process ID of the new process to the old process. */
|
|
.globl ___vfork
|
|
___vfork:
|
|
/* Pop the return PC value into A0. */
|
|
movel sp@+, a0
|
|
|
|
/* Push the syscall number and trap into the kernel. */
|
|
movel #SYS_vfork, sp@-
|
|
trap #0
|
|
bcs error /* Branch forward if it failed. */
|
|
|
|
/* It succeeded. See which fork we're in. D1 is now 0 for the
|
|
parent and 1 for the child. Decrement it to make it -1 (all
|
|
bits set) for the parent, and 0 (no bits set) for the child.
|
|
Then AND it with D0, so the parent gets D0&-1==R0, and the child
|
|
gets D0&0==0. */
|
|
subql #1, d1
|
|
andl d1, d0
|
|
|
|
/* Jump to the return PC. */
|
|
jmp a0@
|
|
|
|
error:
|
|
movel d0, _errno
|
|
moveq #-1, d0
|
|
jmp a0@
|
|
|
|
weak_alias (__vfork, vfork)
|