diff options
Diffstat (limited to 'mit-pthreads/machdep/syscall-template-r2000-ultrix-4.2.S')
| -rw-r--r-- | mit-pthreads/machdep/syscall-template-r2000-ultrix-4.2.S | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/syscall-template-r2000-ultrix-4.2.S b/mit-pthreads/machdep/syscall-template-r2000-ultrix-4.2.S new file mode 100644 index 00000000000..575fe3c3d74 --- /dev/null +++ b/mit-pthreads/machdep/syscall-template-r2000-ultrix-4.2.S @@ -0,0 +1,77 @@ +/* ==== syscall.S ============================================================ + * Copyright (c) 1993 by Chris Provenzano, proven@mit.edu + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Chris Provenzano. + * 4. The name of Chris Provenzano may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Description : Machine dependent syscalls for decstation with r2000/r3000 + * + * 1.00 93/08/14 proven + * -Started coding this file. + */ + + .text + .ascii "$Id$"; + +#include <syscall.h> +#include <machine/regdef.h> + +#define SYSCALL(x) \ + \ + .globl machdep_sys_##x; \ + .ent machdep_sys_##x; \ + \ +machdep_sys_##x:; \ + \ + .frame sp,0,ra; /* No frame, return address in ra */ \ + \ + li v0,SYS_##x; /* Load syscall # into v0 */ \ + syscall; \ + bne a3,zero,machdep_error; /* Error if a3 != 0 */ \ + j ra; \ + \ + .end machdep_sys_##x + +/* + * Initial asm stuff for all functions. + */ + .text + .align 2 + +/* ========================================================================== + * error code for all syscalls. The error value is returned as the negative + * of the errno value. Eventually I want to load the errno value directly + * into pthread_run->error but until then ... + */ +machdep_error: + negu v0, v0 /* Return negative of errno value. */ + j ra + +#define XSYSCALL(NAME) SYSCALL(NAME) + +XSYSCALL(SYSCALL_NAME) |