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authorSteven J. Magnani <steve@digidescorp.com>2010-11-10 19:27:57 +0100
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2010-11-10 19:44:36 +0100
commit54f73a98f6b841f05484e2275c860ae61d49aae2 (patch)
tree17478ac53eb5d0c3f770a27960c90439631a590e /libc/sysdeps/linux/microblaze/syscall.c
parent2be86fb41e29def10eec97e5f663cc8147227358 (diff)
microblaze: syscall interface
Fix the microblaze syscall interface. Recent mainline kernels no longer carry userland code to invoke syscalls and microblaze can use the uClibc generic code. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/microblaze/syscall.c')
-rw-r--r--libc/sysdeps/linux/microblaze/syscall.c51
1 files changed, 0 insertions, 51 deletions
diff --git a/libc/sysdeps/linux/microblaze/syscall.c b/libc/sysdeps/linux/microblaze/syscall.c
deleted file mode 100644
index 0e07e4595..000000000
--- a/libc/sysdeps/linux/microblaze/syscall.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * libc/sysdeps/linux/microblaze/syscall.c -- generic syscall function for linux/microblaze
- *
- * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au>
- * Copyright (C) 2002 NEC Corporation
- * Copyright (C) 2002 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License. See the file COPYING.LIB in the main
- * directory of this archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <errno.h>
-#include <sys/syscall.h>
-
-typedef unsigned long arg_t;
-
-/* Invoke `system call' NUM, passing it the remaining arguments.
- This is completely system-dependent, and not often useful. */
-long
-syscall (long num, arg_t a1, arg_t a2, arg_t a3, arg_t a4, arg_t a5, arg_t a6)
-{
- /* We don't know how many arguments are valid, so A5 and A6 are fetched
- off the stack even for (the majority of) system calls with fewer
- arguments; hopefully this won't cause any problems. A1-A4 are in
- registers, so they're OK. */
- register arg_t a __asm__ (SYSCALL_ARG0) = a1;
- register arg_t b __asm__ (SYSCALL_ARG1) = a2;
- register arg_t c __asm__ (SYSCALL_ARG2) = a3;
- register arg_t d __asm__ (SYSCALL_ARG3) = a4;
- register arg_t e __asm__ (SYSCALL_ARG4) = a5;
- register arg_t f __asm__ (SYSCALL_ARG5) = a6;
- register unsigned long syscall __asm__ (SYSCALL_NUM) = num;
- register unsigned long ret __asm__ (SYSCALL_RET);
- unsigned long ret_sav;
-
- *((unsigned long *)0xFFFF4004) = (unsigned int)('+');
- __asm__ ("brlid r17, 08x; nop;"
- : "=r" (ret)
- : "r" (syscall), "r" (a), "r" (b), "r" (c), "r" (d), "r" (e), "r" (f)
- : SYSCALL_CLOBBERS);
-
- ret_sav=ret;
- *((unsigned long *)0xFFFF4004) = (unsigned int)('-');
-
-
-
- __syscall_return (long, ret);
-}