/* vi: set sw=4 ts=4: */ /* syscall for blackfin/uClibc * * Copyright (C) 2004 by Analog Devices Inc. * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org> * * This program 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. * * This program 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 this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <features.h> #include <errno.h> #include <sys/types.h> #include <sys/syscall.h> long syscall(long sysnum, long a, long b, long c, long d, long e) { int _r0 = 0; asm volatile( "p0 = %1;" /*SysCall Number*/ "r0 = %2;" "r1 = %3;" "r2 = %4;" "r3 = %6;" "r4 = %5;" "excpt 0;" /*Call the System Call*/ "%0 = r0;" /*Store the result of syscall*/ : "=r"(_r0) : "r"(sysnum), "r"(a), "r"(b), "r"(c), "r"(d), "r"(e) : "memory"); if(_r0 >=(unsigned long) -4095) { (*__errno_location())=(-_r0); _r0=(unsigned long) -1; } return (long) _r0; }