internal/syscall: add support for getrandom on arm

Added in linux commit eb6452537b28

LGTM=agl
R=agl
CC=golang-codereviews
https://golang.org/cl/130170043

diff --git a/src/pkg/internal/syscall/getrandom_linux.go b/src/pkg/internal/syscall/getrandom_linux.go
index 1c586ec9b7970a8ac153ee5a5d5a964f797cf9fc..944bab3f5d44938f5ff718fcc5d86427756347cd 100644 (file)
--- a/src/pkg/internal/syscall/getrandom_linux.go
+++ b/src/pkg/internal/syscall/getrandom_linux.go
@@ -12,8 +12,9 @@ import (
 )
 
 var randomTrap = map[string]uintptr{
-       "amd64": 318,
        "386":   355,
+       "amd64": 318,
+       "arm":   384,
 }[runtime.GOARCH]
 
 var randomUnsupported int32 // atomic