kernel: refactor syscall dispatch system

CMakeLists.txt

@@ -12,7 +12,7 @@ set(kernel_arch x86_64)
 set(kernel_name "Mango")
 set(kernel_exe_name "mango_kernel")
 
-set(generic_src_dirs ds init kernel libc sched util vm)
+set(generic_src_dirs ds init kernel libc sched util vm syscall)
 set(kernel_sources "")
 set(kernel_headers "")
 

arch/x86_64/irq.c

@@ -206,7 +206,7 @@ void irq_dispatch(struct ml_cpu_context *regs)
 void syscall_dispatch(struct ml_cpu_context *regs)
 {
 	unsigned int sysid = regs->rax;
-	virt_addr_t syscall_impl = syscall_get_func(sysid);
+	virt_addr_t syscall_impl = syscall_get_function(sysid);
 
 	if (syscall_impl == 0) {
 		regs->rax = KERN_UNSUPPORTED;

include/mango/syscall.h

@@ -15,6 +15,6 @@ extern kern_status_t sys_vm_object_create(
 	enum vm_prot prot,
 	kern_handle_t *out_handle);
 
-extern virt_addr_t syscall_get_func(unsigned int sysid);
+extern virt_addr_t syscall_get_function(unsigned int sysid);
 
 #endif

syscall/dispatch.c

@@ -2,25 +2,6 @@
 #include <mango/printk.h>
 #include <mango/syscall.h>
 
-kern_status_t sys_exit(int status)
-{
-	printk("sys_exit(%d)", status);
-	while (1) {
-		ml_cpu_pause();
-	}
-	return KERN_UNIMPLEMENTED;
-}
-
-kern_status_t sys_vm_object_create(
-	const char *name,
-	size_t len,
-	enum vm_prot prot,
-	kern_handle_t *out_handle)
-{
-	printk("sys_vm_object_create()");
-	return KERN_UNIMPLEMENTED;
-}
-
 #define SYSCALL_TABLE_ENTRY(id, p) [SYS_##id] = (virt_addr_t)(sys_##p)
 
 static const virt_addr_t syscall_table[] = {
@@ -30,7 +11,7 @@ static const virt_addr_t syscall_table[] = {
 static const size_t syscall_table_count
 	= sizeof syscall_table / sizeof syscall_table[0];
 
-virt_addr_t syscall_get_func(unsigned int sysid)
+virt_addr_t syscall_get_function(unsigned int sysid)
 {
 	if (sysid >= syscall_table_count) {
 		return 0;

syscall/task.c

@@ -0,0 +1,13 @@
+#include <mango/machine/cpu.h>
+#include <mango/printk.h>
+#include <mango/sched.h>
+
+extern kern_status_t sys_exit(int status)
+{
+	printk("sys_exit(%d)", status);
+	while (1) {
+		ml_cpu_pause();
+	}
+
+	return KERN_UNIMPLEMENTED;
+}

syscall/vm-object.c

@@ -0,0 +1,13 @@
+#include <mango/handle.h>
+#include <mango/printk.h>
+#include <mango/vm-region.h>
+
+kern_status_t sys_vm_object_create(
+	const char *name,
+	size_t len,
+	enum vm_prot prot,
+	kern_handle_t *out_handle)
+{
+	printk("sys_vm_object_create()");
+	return KERN_UNIMPLEMENTED;
+}