Introduce cross testing driver for gcc-cross

index fb632ba..2cd7c6a 100644
@@ -32,16 +32,50 @@ do_compile_append () {
 	sed -i -e "/^STAGING/d" ${B}/${HOST_PREFIX}testeglibc
 	sed -i -e "/^LD_LIBRARY_PATH/d" ${B}/${HOST_PREFIX}testeglibc
 	sed -i -e "/^PSEUDO/d" ${B}/${HOST_PREFIX}testeglibc
+
+	# point to real sysroot not the toolchain bootstrap sysroot
+	sed -i -e "s/\-tcbootstrap//g" ${B}/${HOST_PREFIX}testeglibc
+
+	# use the final cross-gcc to test since some tests need libstdc++
+	sed -i -e "s/^PATH=.*\.gcc-cross-intermediate\:/PATH=/g" ${B}/${HOST_PREFIX}testeglibc
+
 	# append execution part script
 cat >> ${B}/${HOST_PREFIX}testeglibc << STOP
 target="\$1"
 if [ "x\$target" = "x" ]
 then
-	echo "Please specify the target machine and remote user in for of user@target"
+	echo "Please specify the target machine and remote user in form of user@target"
 	exit 1;
 fi
+ssh \$target ls \$PWD\ >& /dev/null
+if [ "x\$?" != "x0" ]
+then
+	echo "Failed connecting to \$target it could be because of:"
+	echo "1. You dont have passwordless ssh setup to access \$target"
+	echo "2. NFS share on \$target is not mounted or if mounted then not matching the build tree layout."
+	echo "   The tree should be accessible at same location on build host and target"
+	echo "   You can add nfs-server to IMAGE_FEATURES to get the nfs client on target"
+	echo "3. nfs server on build host is not running."
+	echo "   Please make sure that you have 'no_root_squash' added in /etc/exports if you want"
+	echo "   to test as root user on target (usually its recommended to create a non"
+	echo "   root user."
+	echo "   As a sanity check make sure that target can read/write to the eglibc build tree"
+	echo "   Please refer to ${S}/EGLIBC.cross-testing for further instructions on setup"
+	exit 1
+fi
+	echo "# we test using cross compiler from real sysroot therefore override the" > ${B}/configparms
+	echo "# definitions that come from ${B}/config.make" >> ${B}/configparms
+
+	echo "CC = ${CC}" >> ${B}/configparms
+	echo "CXX = ${CXX}" >> ${B}/configparms
+	sed -i -e "s/\-tcbootstrap//g" ${B}/configparms
+
 wrapper="${S}/scripts/cross-test-ssh.sh \$target"
 localedef="${STAGING_BINDIR_NATIVE}/cross-localedef --little-endian --uint32-align=4"
+make tests-clean
 make cross-localedef="\$localedef" cross-test-wrapper="\$wrapper" -k check
+rm -rf ${B}/configparms
 STOP
+
+	chmod +x ${B}/${HOST_PREFIX}testeglibc
 }

index 5a796bc..0b31a8c 100644
@@ -8,5 +8,94 @@ require gcc-package-cross.inc
 
 do_compile () {
 	oe_runmake all-host all-target-libgcc
-}
+	# now generate script to drive testing
+	echo "#!/usr/bin/env sh" >${B}/${TARGET_PREFIX}testgcc
+	set >> ${B}/${TARGET_PREFIX}testgcc
+	# prune out the unneeded vars
+	sed -i -e "/^BASH/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^USER/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^OPT/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^DIRSTACK/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^EUID/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^FUNCNAME/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^GROUPS/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^HOST/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^HOME/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^IFS/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^LC_ALL/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^LOGNAME/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^MACHTYPE/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^OSTYPE/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^PIPE/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^SHELL/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^'/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^UID/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^TERM/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^PATCH_GET/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^PKG_/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^POSIXLY_/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^PPID/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^PS4/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^Q/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^SHLVL/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^STAGING/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^LD_LIBRARY_PATH/d" ${B}/${TARGET_PREFIX}testgcc
+	sed -i -e "/^PSEUDO/d" ${B}/${TARGET_PREFIX}testgcc
+
+	# append execution part of the script
+cat >> ${B}/${TARGET_PREFIX}testgcc << STOP
+target="\$1"
+shift
+usage () {
+	echo "Usage:"
+	echo "\$0 user@target 'extra options to dejagnu'"
+	echo "\$0 target 'extra options to dejagnu'"
+	echo "\$0 target"
+	echo "e.g. \$0 192.168.7.2 ' dg.exp=visibility-d.c'"
+	echo "will only run visibility-d.c test case"
+	echo "e.g. \$0 192.168.7.2 '/-mthumb dg.exp=visibility-d.c'"
+	echo "will only run visibility-d.c test case in thumb mode"
+	echo "You need to have dejagnu autogen expect installed"
+	echo "on the build host"
+    }
+if [ "x\$target" = "x" ]
+then
+	echo "Please specify the target machine and remote user in form of user@target"
+	usage
+	exit 1;
+fi
+
+echo "\$target" | grep −q "@" >& /dev/null
+if [ "x\$?" = "x0" ]
+then
+   user=echo \$target | cut -d '@' -f 1
+   target=echo \$target | cut -d '@' -f 2
+else
+   user=\$USER
+fi
+ssh \$user@\$target date >& /dev/null
+if [ "x\$?" != "x0" ]
+then
+	echo "Failed connecting to \$user@\$target it could be because"
+	echo "you don't have passwordless ssh setup to access \$target"
+	echo "or sometimes host key has been changed"
+	echo "in such case do something like below on build host"
+	echo "ssh-keygen -f "~/.ssh/known_hosts" -R \$target"
+	echo "and then try ssh \$user@\$target"
+
+	usage
+	exit 1
+fi
+	echo "lappend boards_dir [pwd]/../../.." > ${B}/site.exp
+	echo "load_generic_config \"unix\"" > ${B}/${MACHINE_ARCH}.exp
+	echo "set_board_info username \$user" >> ${B}/${MACHINE_ARCH}.exp
+	echo "set_board_info rsh_prog ssh" >> ${B}/${MACHINE_ARCH}.exp
+	echo "set_board_info rcp_prog scp" >> ${B}/${MACHINE_ARCH}.exp
+	echo "set_board_info hostname \$target" >> ${B}/${MACHINE_ARCH}.exp
+	DEJAGNU=${B}/site.exp make -k check RUNTESTFLAGS="--target_board=${MACHINE_ARCH}\$@"
 
+STOP
+
+	chmod +x ${B}/${TARGET_PREFIX}testgcc
+
+}