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runtime: move startupRandomData declaration to os_linux.go

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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>
This commit is contained in:
Tobias Klauser 2020-08-17 16:32:33 +02:00 committed by Tobias Klauser
parent 4b94e88161
commit 4149493443
2 changed files with 4 additions and 4 deletions
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4
src/runtime/os_linux.go
View File

@ -249,6 +249,10 @@ func sysargs(argc int32, argv **byte) {
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 {

4
src/runtime/runtime2.go
View File

@ -845,10 +845,6 @@ type forcegcstate struct {
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) {