1 files changed, 12 insertions, 0 deletions
diff --git a/tools/builtin.s b/tools/builtin.s
index 6fc43f6..6274b2e 100644
--- a/tools/builtin.s
+++ b/tools/builtin.s
@@ -1,6 +1,12 @@
+.global main
+.type main, @function
+
 .global printi
 .type printi, @function
 
+.global _start
+.type _start, @function
+
 .text
 printi:
     addi sp, sp, -8
@@ -27,3 +33,9 @@ printi:
     lw ra, 4(sp)
     addi sp, sp, 8
     ret
+
+_start:
+    call "main"
+    addi a0, zero, 0
+    addi a7, zero, 93
+    ecall