Started work on syscalls

1 files changed, 36 insertions, 0 deletions

diff --git a/include/apos/syscalls.h b/include/apos/syscalls.h
new file mode 100644
index 0000000..d2427cf
--- /dev/null
+++ b/include/apos/syscalls.h
@@ -0,0 +1,36 @@
+#ifndef APOS_SYSCALLS_H
+#define APOS_SYSCALLS_H
+
+/* enum for now, possibly macros in the future once I get an approximate idea of
+ * which syscalls are necessary etc. */
+enum {
+	/* memory management */
+	SYS_REQ_MEM, /* request memory from anywhere */
+	SYS_REQ_PMEM, /* request physical address */
+	SYS_REQ_FIXMEM, /* request memory at fixed address */
+	SYS_FREE_MEM, /* free memory */
+
+	/* IPC */
+	/* I really should try to find my notes about the server/client
+	 * structure of the OS, but these following syscalls are probably
+	 * required */
+	SYS_IPC_SERVER, /* inform kernel that process should be treated as a server */
+	SYS_IPC_REQ, /* IPC request to server */
+	SYS_IPC_RESP, /* IPC response from server */
+
+	/* process management */
+	SYS_FORK, /* duplicate process */
+	SYS_EXEC, /* execute new binary in process space */
+	SYS_SIGNAL, /* send signal to process (kill etc.) */
+	SYS_SWITCH, /* switch running process */
+	SYS_SYNC, /* used by init process to synchronize running processes, maybe not used */
+
+	/* kernel management */
+	SYS_CONF, /* config system parameters (stack size etc.) */
+	SYS_POWEROFF, /* shutdown/reboot etc. */
+}
+
+/* function declarations should be somewhere else, this file could be used in
+ * userspace applications as well */
+
+#endif /* APOS_SYSCALLS_H */