initial port to hppa

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;
+}