diff options
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/alpha/getitimer.S')
-rw-r--r-- | libc/sysdeps/unix/sysv/linux/alpha/getitimer.S | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/alpha/getitimer.S b/libc/sysdeps/unix/sysv/linux/alpha/getitimer.S new file mode 100644 index 000000000..6644a5c36 --- /dev/null +++ b/libc/sysdeps/unix/sysv/linux/alpha/getitimer.S @@ -0,0 +1,113 @@ +/* Copyright (C) 1998, 2003, 2006 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; 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> +#include <kernel-features.h> + +.text + +#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING +#define GETITIMER __getitimer_tv64 +#else +#define GETITIMER getitimer +#endif + +#if defined __ASSUME_TIMEVAL64 +PSEUDO(GETITIMER, getitimer, 2) + ret +PSEUDO_END(GETITIMER) +#else +/* 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 + +LEAF(GETITIMER, 16) + ldgp gp, 0(pv) + subq sp, 16, 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) + + bne t0, $do32 + + ldi v0, SYS_ify(getitimer) + callsys + bne a3, $err64 + + /* Everything ok. */ + addq sp, 16, sp + ret + + /* If we didn't get ENOSYS, it is a real error. */ + .align 3 +$err64: cmpeq v0, ENOSYS, t0 + beq t0, $error + stl t0, __libc_missing_axp_tv64 + + /* Recover the saved arguments. */ + ldq a1, 8(sp) + ldq a0, 0(sp) + + .align 3 +$do32: ldi v0, SYS_ify(osf_getitimer) + callsys + bne a3, $error + + /* Copy back to proper format. */ + ldq a1, 8(sp) + ldl t0, 0(a1) + ldl t1, 4(a1) + ldl t2, 8(a1) + ldl t3, 12(a1) + stq t0, 0(a1) + stq t1, 8(a1) + stq t2, 16(a1) + stq t3, 24(a1) + + addq sp, 16, sp + ret + + .align 3 +$error: + addq sp, 16, sp + SYSCALL_ERROR_HANDLER + +END(GETITIMER) +#endif /* __ASSUME_TIMEVAL64 */ + +#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING +default_symbol_version (__getitimer_tv64, getitimer, GLIBC_2.1) +#endif |