[Minios-devel] [UNIKRAFT PATCH 02/13] build: Introduce a new variable UK_FAMILY

[Wei Chen <Wei.Chen@xxxxxxx>]

This patch series modifies the folder layout organized by CPU
families like:
unikraft----arch----arm----arm
              |      |-----arm64
              |
              |-----x86----x86
                     |-----x86_64

In this case, we introduce a new variable UK_FAMILY for build scipts.
we should not expect the user to set or select UK_FAMILY in a menu or
by setting the variable externally. So we retrieve UK_FAMILY directly
from UK_ARCH. Because of this we can keep Compiler.uk, Makefile.uk,
and Config.uk directly under the UK_FAMILY directory.

Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
---
 Makefile | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Makefile b/Makefile
index 801b82f..63495ca 100644
--- a/Makefile
+++ b/Makefile
@@ -337,6 +337,16 @@ endif
 override ARCH := $(UK_ARCH)
 export UK_ARCH ARCH
 
+# Retrive target CPU family from architecture
+export UK_FAMILY ?= $(shell echo "$(UK_ARCH)" | \
+                  sed -e "s/-.*//" \
+                      -e 's//\1/' \
+                      -e 's/x86.*/x86/' \
+                      -e 's/sparc64/sparc/' \
+                      -e 's/arm.*/arm/' \
+                      -e 's/powerpc.*/powerpc/' \
+                      -e 's/sh.*/sh/' )
+
 # Quick-check if architecture exists
 ifeq ($(filter $(null_targets) print-vars,$(MAKECMDGOALS)),)
 ifeq ($(wildcard $(UK_BASE)/arch/$(ARCH)/Makefile.uk),)
-- 
2.7.4


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