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authorMike Frysinger <vapier@gentoo.org>2005-11-12 01:10:24 +0000
committerMike Frysinger <vapier@gentoo.org>2005-11-12 01:10:24 +0000
commit38545a368ca50c8c24e5adae349bcbcae2065132 (patch)
tree81eaac7b3d99330be800ab8ae97dee28f2c9b49b /libc/sysdeps/linux/hppa/syscall.c
parent63f4057c6726e42960439780675ad165cecc9f75 (diff)
initial port to hppa
Diffstat (limited to 'libc/sysdeps/linux/hppa/syscall.c')
-rw-r--r--libc/sysdeps/linux/hppa/syscall.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/hppa/syscall.c b/libc/sysdeps/linux/hppa/syscall.c
new file mode 100644
index 000000000..87dff0f34
--- /dev/null
+++ b/libc/sysdeps/linux/hppa/syscall.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 1997, 1998, 2001, 2003 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 <stdarg.h>
+#include <errno.h>
+#include <sys/syscall.h>
+
+/* HPPA implements syscall() in 'C'; the assembler version would
+ typically be in syscall.S. Also note that we have INLINE_SYSCALL,
+ INTERNAL_SYSCALL, and all the generated pure assembly syscall wrappers.
+ How often the function is used is unknown. */
+
+long int
+syscall (long int __sysno, ...)
+{
+ /* FIXME: Keep this matching INLINE_SYSCALL for hppa */
+ va_list args;
+ long int arg0, arg1, arg2, arg3, arg4, arg5;
+ long int __sys_res;
+
+ /* Load varargs */
+ va_start (args, __sysno);
+ arg0 = va_arg (args, long int);
+ arg1 = va_arg (args, long int);
+ arg2 = va_arg (args, long int);
+ arg3 = va_arg (args, long int);
+ arg4 = va_arg (args, long int);
+ arg5 = va_arg (args, long int);
+ va_end (args);
+
+ {
+ register unsigned long int __res asm("r28");
+ K_LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5)
+ asm volatile (K_STW_ASM_PIC
+ " ble 0x100(%%sr2, %%r0) \n"
+ " copy %1, %%r20 \n"
+ K_LDW_ASM_PIC
+ : "=r" (__res)
+ : "r" (__sysno) K_ASM_ARGS_6
+ : "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_6);
+ __sys_res = __res;
+ }
+ if ((unsigned long int) __sys_res >= (unsigned long int) -4095)
+ {
+ __set_errno (-__sys_res);
+ __sys_res = -1;
+ }
+ return __sys_res;
+}