From: Austin Clements <austin@google.com>
Date: Mon, 28 Nov 2016 19:54:38 +0000 (-0500)
Subject: runtime: extract Linux auxv handling
X-Git-Tag: go1.8beta1~40
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=d39b7b5347a3e6cc9173224393e4cfaf874a272a;p=gostls13.git

runtime: extract Linux auxv handling

This refactoring is in preparation for handling auxv differently in
Android shared libraries.

Updates #18041.

Change-Id: If0458a309f9c804e7abd0a58b5a224d89f8da257
Reviewed-on: https://go-review.googlesource.com/33651
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
---

diff --git a/src/runtime/os_linux.go b/src/runtime/os_linux.go
index 72d17f549a..67c62bc18e 100644
--- a/src/runtime/os_linux.go
+++ b/src/runtime/os_linux.go
@@ -200,6 +200,10 @@ func sysargs(argc int32, argv **byte) {
 
 	// now argv+n is auxv
 	auxv := (*[1 << 28]uintptr)(add(unsafe.Pointer(argv), uintptr(n)*sys.PtrSize))
+	sysauxv(auxv[:])
+}
+
+func sysauxv(auxv []uintptr) {
 	for i := 0; auxv[i] != _AT_NULL; i += 2 {
 		tag, val := auxv[i], auxv[i+1]
 		switch tag {