madvise: Support MADV_WIPEONFORK, MADV_KEEPONFORK and MADV_NORMAL

Change-Id: I1d4cf5affa580d7304dfdc34fa4f1707c0df617c
refs: #1374

test/issues/1374/README

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+/* REDME COPYRIGHT FUJITSU LIMITED 2020 */
+
+ltp: madvise10: MADV_WIPEONFORKが期待通りに動作しない
+https://postpeta.pccluster.org/redmine/issues/1374
+
+テストセットREADME
+
+(0) 事前準備
+  1. $HOME/.mck_test_configを用意する
+
+(1) テスト実行方法
+  1. ./run.sh
+
+(2) テスト項目詳細
+
+  LTPの下記項目を実行し期待通りに動作することを確認する
+  "test OK." が書き出されれば合格判定となる。具体例はresult.logを参照。
+  - madvise10
+
+以上。

test/issues/1374/result.log

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+[root@hostname 1374]# ./run.sh
+mcstop+release.sh ... done
+mcreboot.sh -c 12-59 -m 512M@4 ... done
+test run.
+tst_test.c:1096: INFO: Timeout per run is 0h 05m 00s
+madvise10.c:143: INFO: MADV_WIPEONFORK zeroes memory in child
+madvise10.c:117: PASS: madvise(0x1000001c0000, 16384, 0x0)
+madvise10.c:117: PASS: madvise(0x1000001c0000, 16384, 0x12)
+madvise10.c:98: PASS: In PID 13482, Matched expected pattern
+madvise10.c:143: INFO: MADV_WIPEONFORK with zero length does nothing
+madvise10.c:117: PASS: madvise(0x1000001d0000, 0, 0x0)
+madvise10.c:117: PASS: madvise(0x1000001d0000, 0, 0x12)
+madvise10.c:98: PASS: In PID 13532, Matched expected pattern
+madvise10.c:143: INFO: MADV_WIPEONFORK zeroes memory in grand-child
+madvise10.c:117: PASS: madvise(0x1000001e0000, 16384, 0x0)
+madvise10.c:117: PASS: madvise(0x1000001e0000, 16384, 0x12)
+madvise10.c:98: PASS: In PID 13635, Matched expected pattern
+madvise10.c:143: INFO: MADV_KEEPONFORK will undo MADV_WIPEONFORK
+madvise10.c:117: PASS: madvise(0x1000001f0000, 16384, 0x12)
+madvise10.c:117: PASS: madvise(0x1000001f0000, 16384, 0x13)
+madvise10.c:98: PASS: In PID 13685, Matched expected pattern
+
+Summary:
+passed   12
+failed   0
+skipped  0
+warnings 0
+test OK.
+mcstop+release.sh ... done

test/issues/1374/run.sh

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+#!/usr/bin/env bash
+# run.sh COPYRIGHT FUJITSU LIMITED 2020
+
+# load setting and booting mck.
+USELTP=1
+. ../../common.sh
+chmod 777 /dev/mcos*
+
+echo "test run."
+ltp=`cat <<__EOL__
+madvise10
+__EOL__`
+
+FAIL=0
+for tp in $ltp
+do
+	pushd ${LTPBIN} > /dev/null
+	${MCEXEC} ${LTPBIN}/${tp}
+	if [ $? -ne 0 ]; then
+		FAIL=1
+	fi
+	popd > /dev/null
+done
+
+if [ ${FAIL} -eq 1 ]; then
+	echo "test NG."
+else
+	echo "test OK."
+fi
+
+mcstop