add powerpc64 port
diff --git a/arch/powerpc64/crt_arch.h b/arch/powerpc64/crt_arch.h
new file mode 100644
index 0000000..168669a
--- /dev/null
+++ b/arch/powerpc64/crt_arch.h
@@ -0,0 +1,19 @@
+__asm__(
+".text \n"
+".global " START " \n"
+".type " START ", %function \n"
+START ": \n"
+" addis 2, 12, .TOC.-" START "@ha \n"
+" addi 2, 2, .TOC.-" START "@l \n"
+" lwz 4, 1f-" START "(12)\n"
+" add 4, 4, 12 \n"
+" mr 3, 1 \n"
+" clrrdi 1, 1, 4 \n"
+" li 0, 0 \n"
+" stdu 0, -32(1) \n"
+" mtlr 0 \n"
+" bl " START "_c \n"
+".weak _DYNAMIC \n"
+".hidden _DYNAMIC \n"
+"1: .long _DYNAMIC-" START "\n"
+);