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Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/alpha/getitimer.S')
-rw-r--r--libc/sysdeps/unix/sysv/linux/alpha/getitimer.S113
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