basic executable loading

3 files changed, 16 insertions, 2 deletions

diff --git a/src/kernel/main.c b/src/kernel/main.c
index 677faaf..7f49fed 100644
--- a/src/kernel/main.c
+++ b/src/kernel/main.c
@@ -3,16 +3,21 @@
 #include <kernel/mem.h>
 #include <kernel/panic.h>
 #include <kernel/proc.h>
+#include <kernel/util.h>
+#include <stdint.h>
 
 void r3_test();
 
 void kmain(struct kmain_info info) {
-	log_write(info.init.at, info.init.size);
 	log_const("mem...");
 	mem_init(&info);
 
 	log_const("creating process...");
-	struct process *proc = process_new(r3_test);
+
+	void *init_addr = (void*)0x200000;
+	memcpy(init_addr, info.init.at, info.init.size);
+
+	struct process *proc = process_new(init_addr);
 	log_const("switching...");
 	process_switch(proc);
 }
diff --git a/src/kernel/util.c b/src/kernel/util.c
index da3ac9d..f4dc5e1 100644
--- a/src/kernel/util.c
+++ b/src/kernel/util.c
@@ -1,6 +1,14 @@
 #include <kernel/util.h>
 #include <stdint.h>
 
+void *memcpy(void *dest, const void *src, size_t n) {
+	char *d = dest;
+	const char *s = src;
+	for (size_t i = 0; i < n; i++)
+		d[i] = s[i];
+	return dest;
+}
+
 void *memset(void *s, int c, size_t n) {
 	uint8_t *s2 = s;
 	for (size_t i = 0; i < n; n++)
diff --git a/src/kernel/util.h b/src/kernel/util.h
index 688ac63..4bd7c31 100644
--- a/src/kernel/util.h
+++ b/src/kernel/util.h
@@ -1,4 +1,5 @@
 #pragma once
 #include <stddef.h>
 
+void *memcpy(void *dest, const void *src, size_t n);
 void *memset(void *s, int c, size_t n);