reorganization: first steps

1 files changed, 17 insertions, 0 deletions

diff --git a/src/libc/_start.s b/src/libc/_start.s
new file mode 100644
index 0000000..12d2c5f
--- /dev/null
+++ b/src/libc/_start.s
@@ -0,0 +1,17 @@
+.section .text
+.global _start
+.type _start, @function
+.weak _start
+_start:
+	mov %rsp, %rdi
+	and $~0xF, %rsp
+
+	/* prevent floating point crashes. thanks heat */
+	push $0x1f80
+	ldmxcsr (%rsp)
+	add $8, %rsp
+
+	call _start2
+	hlt
+	/* the call shouldn't return, thus the hlt.
+	 * using a call instead of jmp for stack alignment */