20000317 sourceware import

libgloss/i960/syscall.h

@@ -0,0 +1,51 @@
+/* mon960 syscall.h file.  This is used only by the simulator.  This matches
+   the syscall numbers used by mon-syscalls.S, but is otherwise a copy of
+   the libgloss/syscall.h file.  */
+/* ??? This file should be used by mon-syscalls.S to avoid maintenance
+   problems.  */
+
+#ifndef LIBGLOSS_SYSCALL_H
+#define LIBGLOSS_SYSCALL_H
+
+/* Note: This file may be included by assembler source.  */
+
+/* These should be as small as possible to allow a port to use a trap type
+   instruction, which the system call # as the trap (the d10v for instance
+   supports traps 0..31).  An alternative would be to define one trap for doing
+   system calls, and put the system call number in a register that is not used
+   for the normal calling sequence (so that you don't have to shift down the
+   arguments to add the system call number).  Obviously, if these system call
+   numbers are ever changed, all of the simulators and potentially user code
+   will need to be updated.  */
+
+/* There is no current need for the following: SYS_execv, SYS_creat, SYS_wait,
+   etc. etc.  Don't add them.  */
+
+/* These are required by the ANSI C part of newlib (excluding system() of
+   course).  */
+#define	SYS_exit	257
+#define	SYS_open	230
+#define	SYS_close	234
+#define	SYS_read	231
+#define	SYS_write	232
+#define	SYS_lseek	233
+
+/* ??? The following system calls apparently aren't support by mon960.  */
+#define	SYS_unlink	7
+#define	SYS_getpid	8
+#define	SYS_kill	9
+#define SYS_fstat       10
+/*#define SYS_sbrk	11 - not currently a system call, but reserved.  */
+
+/* ARGV support.  */
+#define SYS_argvlen	12
+#define SYS_argv	13
+
+/* These are extras added for one reason or another.  */
+#define SYS_chdir	14
+#define SYS_stat	15
+#define SYS_chmod 	16
+#define SYS_utime 	17
+#define SYS_time 	18
+
+#endif