diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/wait4.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/wait4.S | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/wait4.S b/sysdeps/unix/sysv/linux/alpha/wait4.S new file mode 100644 index 0000000000..5ab86077c8 --- /dev/null +++ b/sysdeps/unix/sysv/linux/alpha/wait4.S @@ -0,0 +1,138 @@ +/* Copyright (C) 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 <sysdep.h> +#define _ERRNO_H 1 +#include <bits/errno.h> + +/* The problem here is that initially we made struct timeval compatible with + OSF/1, using int32. But we defined time_t with uint64, and later found + that POSIX requires tv_sec to be time_t. + + So now we have to do compatibility stuff. */ + +/* The variable is shared between all wrappers around signal handling + functions which have RT equivalents. */ +.comm __libc_missing_axp_tv64, 4 + +.text + +LEAF(__wait4_tv64, 32) + ldgp gp, 0(pv) + subq sp, 32, sp +#ifdef PROF + .set noat + lda AT, _mcount + jsr AT, (AT), _mcount + .set at +#endif + .prologue 1 + + ldl t0, __libc_missing_axp_tv64 + + /* Save arguments in case we do need to fall back. */ + stq a0, 0(sp) + stq a1, 8(sp) + stq a2, 16(sp) + stq a3, 24(sp) + + bne t0, $do32 + + ldi v0, SYS_ify(wait4) + callsys + bne a3, $err64 + + /* Everything ok. */ + addq sp, 32, sp + ret + + /* If we didn't get ENOSYS, it is a real error. */ + .align 3 +$err64: cmpeq v0, ENOSYS, t0 + bne t0, $error + stl t0, __libc_missing_axp_tv64 + + /* Recover the saved arguments. */ + ldq a3, 24(sp) + ldq a2, 16(sp) + ldq a1, 8(sp) + ldq a0, 0(sp) + + .align 3 +$do32: ldi v0, SYS_ify(osf_wait4) + callsys + bne a3, $error + + /* Copy back to proper format. */ + ldq a3, 8(sp) + beq a3, 2f + ldl t0, 0(a3) # ru_utime.tv_sec + ldl t1, 4(a3) # ru_utime.tv_usec + ldl t2, 8(a3) # ru_stime.tv_sec + ldl t3, 12(a3) # ru_stime.tv_usec + ldt $f15, 16(a3) # ru_maxrss + ldt $f16, 24(a3) # ru_ixrss + ldt $f17, 32(a3) # ru_idrss + ldt $f18, 40(a3) # ru_isrss + ldt $f19, 48(a3) # ru_minflt + ldt $f20, 56(a3) # ru_majflt + ldt $f21, 64(a3) # ru_nswap + ldt $f22, 72(a3) # ru_inblock + ldt $f23, 80(a3) # ru_oublock + ldt $f24, 88(a3) # ru_msgsend + ldt $f25, 96(a3) # ru_msgrcv + ldt $f26, 104(a3) # ru_nsignals + ldt $f27, 112(a3) # ru_nvcsw + ldt $f28, 120(a3) # ru_nivcsw + stq t0, 0(a3) + stq t1, 8(a3) + stq t2, 16(a3) + stq t3, 24(a3) + stt $f15, 32(a3) + stt $f16, 40(a3) + stt $f17, 48(a3) + stt $f18, 56(a3) + stt $f19, 64(a3) + stt $f20, 72(a3) + stt $f21, 80(a3) + stt $f22, 88(a3) + stt $f23, 96(a3) + stt $f24, 104(a3) + stt $f25, 112(a3) + stt $f26, 120(a3) + stt $f27, 128(a3) + stt $f28, 136(a3) + +2: addq sp, 32, sp + ret + + .align 3 +$error: + lda pv, __syscall_error + addq sp, 32, sp + jmp zero, (pv), __syscall_error + +END(__wait4_tv64) + +default_symbol_version (__wait4_tv64, __wait4, GLIBC_2.1) + +/* It seems to me to be a misfeature of the assembler that we can only + have one version-alias per symbol. So create an alias ourselves. + The 'p' is for 'public'. *Shrug* */ +strong_alias (__wait4_tv64, __wait4_tv64p) +default_symbol_version (__wait4_tv64p, wait4, GLIBC_2.1) |