kernel panic

1 files changed, 27 insertions, 1 deletions

diff --git a/kernel/src/sys/syscall.c b/kernel/src/sys/syscall.c
index 7f0e492..c526e39 100644
--- a/kernel/src/sys/syscall.c
+++ b/kernel/src/sys/syscall.c
@@ -1,9 +1,35 @@
 #include <libk/stdio.h>
 #include <syscall.h>
+#include <libk/string.h>
+#include <heap.h>
 
 void syscall_handler()
 {
 	uint64_t rax;
+	uint64_t rdi;
+	uint64_t rsi;
 	__asm__ volatile ("mov %%rax, %0;" : "=r"(rax) : :);
-	printf("syscall invoked with rax=0x%x\n", rax);
+	__asm__ volatile ("mov %%rdi, %0;" : "=r"(rdi) : :);
+	__asm__ volatile ("mov %%rsi, %0;" : "=r"(rsi) : :);
+	switch(rax) {
+		case SYSCALL_READ:
+			syscall_read();
+			break;
+		case SYSCALL_WRITE:
+			syscall_write((char*)rdi, rsi);
+			break;
+		default:
+			printf("invalid syscall (%d)\n", rax);
+	}
+}
+
+void syscall_read()
+{
+	printf("syscall_read()\n");
+}
+
+void syscall_write(char* buff, size_t count)
+{
+	printf("syscall_write()\n");
+	printf("buff = 0x%x, count = %d\n", buff, count);
 }