unix: add KexecFileLoad on linux/{amd64,ppc64x,s390x}

Add a wrapper for the kexec_file_load syscall on the architectures that
implement it (amd64, ppc64x, s390x). See
http://man7.org/linux/man-pages/man2/kexec_file_load.2.html

Change-Id: Ie29f871902176610a6ba7ed0a7bcc95c10eb172b
Reviewed-on: https://go-review.googlesource.com/c/140037
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
2018-10-05 13:07:39 +00:00
committed by Tobias Klauser
parent 8469e31483
commit f81de40a84
20 changed files with 341 additions and 0 deletions
+2
View File
@@ -193,6 +193,7 @@ struct ltchars {
#include <linux/falloc.h>
#include <linux/filter.h>
#include <linux/fs.h>
#include <linux/kexec.h>
#include <linux/keyctl.h>
#include <linux/magic.h>
#include <linux/memfd.h>
@@ -445,6 +446,7 @@ ccflags="$@"
$2 ~ /^(MS|MNT|UMOUNT)_/ ||
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
$2 ~ /^(O|F|E?FD|NAME|S|PTRACE|PT)_/ ||
$2 ~ /^KEXEC_/ ||
$2 ~ /^LINUX_REBOOT_CMD_/ ||
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
$2 !~ "NLA_TYPE_MASK" &&