Replace arm routines with stubs

Signed-off-by: grant <[email protected]>

Author: grantseltzer

src/net/lookup_darwin_arm.s

@@ -10,11 +10,11 @@
 #include "go_tls.h"
 #include "textflag.h"
 
+// On darwin/arm, the runtime always use runtime/cgo
+// for resolution. This will just exit with nominal
+// exit code
+
 TEXT runtime·res_search_trampoline(SB),NOSPLIT,$0
-    MOVW 16(R0). R4 // arg 5 anslen
-    MOVW 12(R0), R3 // arg 4 answer
-    MOVW 4(R0), R1  // arg 2 class
-    MOVW 8(R0), R2  // arg 3 type 
-    MOVW 0(R0), R0  // arg 1 name
-    BL libc_res_search
-    RET 
+    MOVW    $98, R0
+    BL    libc_exit(SB)
+    RET

src/net/lookup_darwin_arm64.s

@@ -6,12 +6,11 @@
 #include "go_tls.h"
 #include "textflag.h"
 
+// On darwin/arm, the runtime always use runtime/cgo
+// for resolution. This will just exit with nominal
+// exit code
+
 TEXT runtime·res_search_trampoline(SB),NOSPLIT,$0
-    SUB    $16, RSP
-    MOVW   24(R0), R4 // arg 5 anslen
-    MOVD   16(R0), R3 // arg 4 answer
-    MOVW   8(R0), R1  // arg 2 class 
-    MOVD   12(R0), R2 // arg 3 type
-    MOVD   0(R0), R0  // arg 1 name
-    BL     libc_res_search(SB)
-    RET
+    MOVW    $1, R0
+    BL    libc_exit(SB)
+    RET