20000317 sourceware import

1 files changed, 47 insertions, 0 deletions

diff --git a/libgloss/syscall.h b/libgloss/syscall.h
new file mode 100644
index 000000000..da785625a
--- /dev/null
+++ b/libgloss/syscall.h
@@ -0,0 +1,47 @@
+/* General use syscall.h file.
+   The more ports that use this file, the simpler sim/common/nltvals.def
+   remains.  */
+
+#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	1
+#define	SYS_open	2
+#define	SYS_close	3
+#define	SYS_read	4
+#define	SYS_write	5
+#define	SYS_lseek	6
+#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