runtime: move startupRandomData declaration to os_linux.go
startupRandomData is only used in sysauxv and getRandomData on linux,
thus move it closer to where it is used. Also adjust its godoc comment.
Change-Id: Ice51d579ec33436adbfdf247caf4ba00bae865e0
Reviewed-on: https://go-review.googlesource.com/c/go/+/248761
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/src/runtime/os_linux.go b/src/runtime/os_linux.go
index 22931b4..9702920 100644
--- a/src/runtime/os_linux.go
+++ b/src/runtime/os_linux.go
@@ -249,6 +249,10 @@
sysauxv(buf[:])
}
+// startupRandomData holds random bytes initialized at startup. These come from
+// the ELF AT_RANDOM auxiliary vector.
+var startupRandomData []byte
+
func sysauxv(auxv []uintptr) int {
var i int
for ; auxv[i] != _AT_NULL; i += 2 {
diff --git a/src/runtime/runtime2.go b/src/runtime/runtime2.go
index 0bddcaa..9598784 100644
--- a/src/runtime/runtime2.go
+++ b/src/runtime/runtime2.go
@@ -845,10 +845,6 @@
idle uint32
}
-// startup_random_data holds random bytes initialized at startup. These come from
-// the ELF AT_RANDOM auxiliary vector (vdso_linux_amd64.go or os_linux_386.go).
-var startupRandomData []byte
-
// extendRandom extends the random numbers in r[:n] to the whole slice r.
// Treats n<0 as n==0.
func extendRandom(r []byte, n int) {
