aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/ia64/sysdep.S
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/sysdep.S')
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sysdep.S84
1 files changed, 84 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.S b/sysdeps/unix/sysv/linux/ia64/sysdep.S
new file mode 100644
index 0000000000..dcf9803044
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ia64/sysdep.S
@@ -0,0 +1,84 @@
+/* Copyright (C) 1999, 2000 Hewlett-Packard Co.
+ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
+
+ 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>
+#include <features.h>
+
+ .psr abi64
+ .psr lsb
+ .lsb
+
+ .global errno
+ .common errno,4,4
+ .type errno, @object
+ .size errno, 4
+
+ .global __errno
+__errno = errno
+
+ .global _errno
+_errno = errno
+
+ .text
+
+ .align 8
+
+ .global __syscall_error
+ .proc __syscall_error
+__syscall_error:
+#ifdef _LIBC_REENTRANT
+ alloc r35=ar.pfs, 0, 4, 0, 0
+ mov r32=b0
+ mov r33=r8
+ mov r34=r1
+ ;;
+ br.call.sptk.many b0 = __errno_location#
+.Lret0: /* force new bundle */
+ st4 [r8]=r33
+ mov r1=r34
+ mov b0=r32
+ mov r8=-1
+ mov ar.pfs=r35
+#else /* _LIBC_REENTRANT */
+ /*
+ * Note that the gp has to be set properly for this to work.
+ * As long as all syscalls are in the same load unit
+ * (executable or shared library) as this routine, we should
+ * be fine. Otherwise, we would have to first load the global
+ * pointer register from __gp.
+ */
+ addl r2=@ltoff(errno),gp
+ ;;
+ ld8 r2=[r2]
+ mov r3=r8
+ mov r8=-1
+ ;;
+ st4 [r2]=r3
+#endif /* _LIBC_REENTRANT */
+ ret // ret is #define'd in syscall.h!
+ .endp __syscall_error
+
+
+ .global __ia64_syscall
+ .proc __ia64_syscall
+__ia64_syscall:
+ break __BREAK_SYSCALL
+ cmp.eq p6,p0=-1,r10
+(p6) br.cond.spnt.few __syscall_error
+ ret
+ .endp __ia64_syscall