Adding foreign bootstrap via qemu for cross arch building.

2 files changed, 45 insertions, 0 deletions

diff --git a/functions/architectures.sh b/functions/architectures.sh
index 53d925bf1..d2c99dd65 100755
--- a/functions/architectures.sh
+++ b/functions/architectures.sh
@@ -22,6 +22,24 @@ Check_architectures ()
 		fi
 	done
 
+	if [ "${ARCHITECTURES}" = "${LB_BOOTSTRAP_QEMU_ARCHITECTURES}" ]
+	then
+		VALID="true"
+
+		if [ ! -e "${LB_BOOTSTRAP_QEMU_STATIC}" ]
+		then
+			Echo_warning "skipping %s, qemu-static binary ${LB_BOOTSTRAP_QEMU_ARCHITECTURES} was not found"
+			VALID="false"
+		fi
+
+		if [ ! -x "${LB_BOOTSTRAP_QEMU_STATIC}" ]
+		then
+			Echo_warning "skipping %s, qemu-static binary ${LB_BOOTSTRAP_QEMU_STATIC} is not executable"
+			VALID="false"
+		fi
+
+	fi
+
 	if [ "${VALID}" = "false" ]
 	then
 		Echo_warning "skipping %s, foreign architecture(s)." "${0}"
@@ -52,6 +70,24 @@ Check_crossarchitectures ()
 			;;
 	esac
 
+	if [ "${LB_ARCHITECTURES}" = "${LB_BOOTSTRAP_QEMU_ARCHITECTURES}" ]
+	then
+
+		if [ ! -e "${LB_BOOTSTRAP_QEMU_STATIC}" ]
+		then
+			Echo_warning "skipping %s, qemu-static binary ${LB_BOOTSTRAP_QEMU_ARCHITECTURES} was not found"
+			exit 0
+		fi
+
+		if [ ! -x "${LB_BOOTSTRAP_QEMU_STATIC}" ]
+		then
+			Echo_warning "skipping %s, qemu-static binary ${LB_BOOTSTRAP_QEMU_STATIC} is not executable"
+			exit 0
+		fi
+		return
+	fi
+
+
 	Check_architectures "${CROSS}"
 }
 
diff --git a/functions/defaults.sh b/functions/defaults.sh
index 52b710724..a0dfd2bbc 100755
--- a/functions/defaults.sh
+++ b/functions/defaults.sh
@@ -1276,4 +1276,13 @@ Check_defaults ()
 		fi
 	fi
 
+	# Architectures to use foreign bootstrap for
+	LB_BOOTSTRAP_QEMU_ARCHITECTURES="${LB_BOOTSTRAP_QEMU_ARCHITECTURES:-}"
+
+	# Packages to exclude for the foreign/ports bootstrapping
+	LB_BOOTSTRAP_QEMU_EXCLUDE="${LB_PORTS_BOOTSTRAP_EXCLUDE:-}"
+
+	# Ports using foreign bootstrap need a working qemu-*-system. This is the location it
+	LB_BOOTSTRAP_QEMU_STATIC="${LB_BOOTSTRAP_QEMU_STATIC:-}"
+
 }