hg: jdk9/hs: 8032045: Enable compiler and linker safety switches for debug builds

[vladimir.kozlov at oracle.com]

Changeset: 77ee6827e0b2
Author:    mduigou
Date:      2014-06-12 16:33 -0700
URL:       http://hg.openjdk.java.net/jdk9/hs/rev/77ee6827e0b2

8032045: Enable compiler and linker safety switches for debug builds
Summary: Enable GCC linker protections, runtime bounds checks and stack protection.
Reviewed-by: ihse, dholmes

! common/autoconf/flags.m4
! common/autoconf/generated-configure.sh
! common/autoconf/toolchain.m4