Added some syscall wrappers

3 files changed, 15 insertions, 3 deletions

diff --git a/kernel/features/load.c b/kernel/features/load.c
index 5ef7def..2f3f65f 100644
--- a/kernel/features/load.c
+++ b/kernel/features/load.c
@@ -9,9 +9,12 @@
 #include <proc.h>
 #include <str.h>
 
-void bin_load(char *path, struct proc *proc)
+int bin_load(char *path, struct proc *proc)
 {
 	char *data = read_file(path);
+	if (!data)
+		return 0;
+
 	u32 stack = (u32)malloc(0x1000) + 0x1000;
 
 	proc->regs.ebp = (u32)stack;
@@ -19,6 +22,7 @@ void bin_load(char *path, struct proc *proc)
 	proc->regs.useresp = (u32)stack;
 	proc->regs.eip = (u32)data;
 	strcpy(proc->name, path + 1);
+	return 1;
 }
 
 int elf_verify(struct elf_header *h)
diff --git a/kernel/features/proc.c b/kernel/features/proc.c
index 64a4ac1..40a52f8 100644
--- a/kernel/features/proc.c
+++ b/kernel/features/proc.c
@@ -72,6 +72,11 @@ void proc_attach(struct proc *proc)
 	}
 }
 
+void proc_exit()
+{
+	current->state = PROC_ASLEEP;
+}
+
 struct proc *proc_make()
 {
 	struct proc *proc = malloc(sizeof(*proc));
diff --git a/kernel/features/syscall.c b/kernel/features/syscall.c
index 519532c..fd57f3b 100644
--- a/kernel/features/syscall.c
+++ b/kernel/features/syscall.c
@@ -30,8 +30,11 @@ void syscall_handler(struct regs *r)
 	case SYS_EXEC: {
 		char *path = (char *)r->ebx;
 		struct proc *proc = proc_make();
-		bin_load(path, proc);
-		proc_print();
+		r->eax = bin_load(path, proc);
+		break;
+	}
+	case SYS_EXIT: {
+		proc_exit();
 		break;
 	}
 	default: {