initial checkout from wrc

1 files changed, 80 insertions, 0 deletions

diff --git a/include/syscalls.h b/include/syscalls.h
new file mode 100644
index 0000000..e66f6c0
--- /dev/null
+++ b/include/syscalls.h
@@ -0,0 +1,80 @@
+/**
+** @file	syscalls.h
+**
+** @author	CSCI-452 class of 20245
+**
+** @brief	System call declarations
+*/
+
+#ifndef SYSCALLS_H_
+#define SYSCALLS_H_
+
+#include <common.h>
+
+/*
+** General (C and/or assembly) definitions
+*/
+
+/*
+** system call codes
+**
+** these are used in the user-level C library stub functions,
+** and are defined here as CPP macros instead of as an enum
+** so that they can be used from assembly
+*/
+
+#define SYS_exit        0
+#define SYS_waitpid     1
+#define SYS_fork        2
+#define SYS_exec        3
+#define SYS_read        4
+#define SYS_write       5
+#define SYS_getpid      6
+#define SYS_getppid     7
+#define SYS_gettime     8
+#define SYS_getprio     9
+#define SYS_setprio     10
+#define SYS_kill        11
+#define SYS_sleep       12
+
+// UPDATE THIS DEFINITION IF MORE SYSCALLS ARE ADDED!
+#define N_SYSCALLS      13
+
+// dummy system call code for testing our ISR
+#define SYS_bogus       0xbad
+
+// interrupt vector entry for system calls
+#define VEC_SYSCALL     0x80
+
+#ifndef ASM_SRC
+
+/*
+** Start of C-only definitions
+*/
+
+/*
+** Types
+*/
+
+/*
+** Globals
+*/
+
+/*
+** Prototypes
+*/
+
+#ifdef KERNEL_SRC
+
+/**
+** Name:  sys_init
+**
+** Syscall module initialization routine
+*/
+void sys_init( void );
+
+#endif  /* KERNEL_SRC */
+
+#endif  /* !ASM_SRC */
+
+#endif