add shell

fsdir/Programs/src/Makefile

@@ -2,7 +2,7 @@ CFLAGS += -Wall -nostdlib -ffreestanding -m32 -g
 LDFLAGS += -nostdlib -ffreestanding -m32
 CC=i686-elf-gcc
 
-SRC = hello exectest read
+SRC = hello exectest read shell
 
 .SUFFIXES:
 

fsdir/Programs/src/shell.c

+#include "syscall.h"
+
+
+int main()
+{
+	uint8_t test[64];
+	int ret;
+	while (1){
+		sys_read(0, test, 64);
+		ret = sys_exec(test);
+		if (ret) {
+			sys_write(1, "Error.\n", 7);
+		}
+	}
+
+	return -1;
+}
\ No newline at end of file

kernel/kernel.c

@@ -117,7 +117,7 @@ void entry(unsigned long magic, unsigned long addr) {
 	ata_read_sectors(ATA_MASTER, 0, 1, mbr.data);
 	ext2_init(mbr.partitions[0].lba_start);
 
-	int32_t error = sys_exec((uint8_t*)"/Programs/bin/exectest");
+	int32_t error = sys_exec((uint8_t*)"/Programs/bin/shell");
 	if (error) {
 		printf("Error executing file: %d\n", error);
 	}