diff options
author | Steven J. Magnani <steve@digidescorp.com> | 2010-11-10 19:27:57 +0100 |
---|---|---|
committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2010-11-10 19:44:36 +0100 |
commit | 54f73a98f6b841f05484e2275c860ae61d49aae2 (patch) | |
tree | 17478ac53eb5d0c3f770a27960c90439631a590e /libc/sysdeps/linux/microblaze/syscall.c | |
parent | 2be86fb41e29def10eec97e5f663cc8147227358 (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.c | 51 |
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); -} |