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157 lines
3.7 KiB
ArmAsm
157 lines
3.7 KiB
ArmAsm
/* Copyright (C) 1998, 2003, 2006, 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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#include <kernel-features.h>
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.text
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#if defined PIC && defined DO_VERSIONING
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#define WAIT4 __wait4_tv64
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#else
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#define WAIT4 __wait4
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#endif
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#if defined __ASSUME_TIMEVAL64
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PSEUDO(WAIT4, wait4, 4)
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ret
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PSEUDO_END(WAIT4)
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#else
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/* The problem here is that initially we made struct timeval compatible with
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OSF/1, using int32. But we defined time_t with uint64, and later found
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that POSIX requires tv_sec to be time_t.
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So now we have to do compatibility stuff. */
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/* The variable is shared between all wrappers around signal handling
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functions which have RT equivalents. */
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.comm __libc_missing_axp_tv64, 4
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LEAF(WAIT4, 32)
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ldgp gp, 0(pv)
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subq sp, 32, sp
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#ifdef PROF
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.set noat
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lda AT, _mcount
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jsr AT, (AT), _mcount
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.set at
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#endif
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.prologue 1
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ldl t0, __libc_missing_axp_tv64
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/* Save arguments in case we do need to fall back. */
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stq a0, 0(sp)
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stq a1, 8(sp)
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stq a2, 16(sp)
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stq a3, 24(sp)
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bne t0, $do32
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ldi v0, SYS_ify(wait4)
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callsys
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bne a3, $err64
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/* Everything ok. */
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addq sp, 32, sp
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ret
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/* If we didn't get ENOSYS, it is a real error. */
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.align 3
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$err64: cmpeq v0, ENOSYS, t0
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beq t0, $error
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stl t0, __libc_missing_axp_tv64
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/* Recover the saved arguments. */
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ldq a3, 24(sp)
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ldq a2, 16(sp)
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ldq a1, 8(sp)
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ldq a0, 0(sp)
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.align 3
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$do32: ldi v0, SYS_ify(osf_wait4)
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callsys
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bne a3, $error
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/* Copy back to proper format. */
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ldq a3, 24(sp)
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beq a3, 2f
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ldl t0, 0(a3) # ru_utime.tv_sec
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ldl t1, 4(a3) # ru_utime.tv_usec
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ldl t2, 8(a3) # ru_stime.tv_sec
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ldl t3, 12(a3) # ru_stime.tv_usec
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ldt $f15, 16(a3) # ru_maxrss
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ldt $f16, 24(a3) # ru_ixrss
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ldt $f17, 32(a3) # ru_idrss
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ldt $f18, 40(a3) # ru_isrss
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ldt $f19, 48(a3) # ru_minflt
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ldt $f20, 56(a3) # ru_majflt
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ldt $f21, 64(a3) # ru_nswap
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ldt $f22, 72(a3) # ru_inblock
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ldt $f23, 80(a3) # ru_oublock
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ldt $f24, 88(a3) # ru_msgsend
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ldt $f25, 96(a3) # ru_msgrcv
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ldt $f26, 104(a3) # ru_nsignals
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ldt $f27, 112(a3) # ru_nvcsw
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.set noat
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ldt $f28, 120(a3) # ru_nivcsw
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stq t0, 0(a3)
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stq t1, 8(a3)
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stq t2, 16(a3)
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stq t3, 24(a3)
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stt $f15, 32(a3)
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stt $f16, 40(a3)
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stt $f17, 48(a3)
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stt $f18, 56(a3)
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stt $f19, 64(a3)
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stt $f20, 72(a3)
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stt $f21, 80(a3)
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stt $f22, 88(a3)
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stt $f23, 96(a3)
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stt $f24, 104(a3)
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stt $f25, 112(a3)
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stt $f26, 120(a3)
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stt $f27, 128(a3)
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stt $f28, 136(a3)
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.set at
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2: addq sp, 32, sp
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ret
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.align 3
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$error:
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addq sp, 32, sp
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SYSCALL_ERROR_HANDLER
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END(WAIT4)
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#endif /* __ASSUME_TIMEVAL64 */
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#if defined PIC && defined DO_VERSIONING
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default_symbol_version (__wait4_tv64, __wait4, GLIBC_2.1)
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/* It seems to me to be a misfeature of the assembler that we can only
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have one version-alias per symbol. So create an alias ourselves.
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The 'p' is for 'public'. *Shrug* */
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strong_alias (__wait4_tv64, __wait4_tv64p)
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default_symbol_version (__wait4_tv64p, wait4, GLIBC_2.1)
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#else
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weak_alias (__wait4, wait4)
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#endif
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