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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-12-24 13:23:27 +0900
committerSascha Hauer <s.hauer@pengutronix.de>2015-01-08 13:55:38 +0100
commitd6d28acee05db669c55b53095044c6a791127c14 (patch)
treef72a0ad18f76827ef8f854d724b9a682ef5ca904 /Kbuild
parent549f04b9c96c49e00b197c2c2b2c609971384491 (diff)
downloadbarebox-d6d28acee05db669c55b53095044c6a791127c14.tar.gz
kbuild: move asm-offsets.h rule to ./Kbuild
Currently, MIPS is the only architecture that needs include/generated/asm-offsets.h, but we have got ./Kbuild file now. It is a good reason to move asm-offsets.h rule from arch/mips/Makefile to ./Kbuild and add dummy asm-offsets.c for the other architectures. asm-offsets.h would be useful for all the architectures. This commit does not implement include/generated/bounds.h, but if necessary, it is easy to implement it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Kbuild')
-rw-r--r--Kbuild45
1 files changed, 43 insertions, 2 deletions
diff --git a/Kbuild b/Kbuild
index 0c3f408..3296096 100644
--- a/Kbuild
+++ b/Kbuild
@@ -1,2 +1,43 @@
-# This does nothing, but some (dummy) comments here.
-# If this file gets empty, it is removed by "make distclean".
+#####
+# 1) Generate asm-offsets.h
+#
+
+offsets-file := include/generated/asm-offsets.h
+
+always += $(offsets-file)
+targets += $(offsets-file)
+targets += arch/$(SRCARCH)/lib/asm-offsets.s
+
+
+# Default sed regexp - multiline due to syntax constraints
+define sed-y
+ "/^->/{s:->#\(.*\):/* \1 */:; \
+ s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
+ s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
+ s:->::; p;}"
+endef
+
+quiet_cmd_offsets = GEN $@
+define cmd_offsets
+ (set -e; \
+ echo "#ifndef __ASM_OFFSETS_H__"; \
+ echo "#define __ASM_OFFSETS_H__"; \
+ echo "/*"; \
+ echo " * DO NOT MODIFY."; \
+ echo " *"; \
+ echo " * This file was generated by Kbuild"; \
+ echo " *"; \
+ echo " */"; \
+ echo ""; \
+ sed -ne $(sed-y) $<; \
+ echo ""; \
+ echo "#endif" ) > $@
+endef
+
+# We use internal kbuild rules to avoid the "is up to date" message from make
+arch/$(SRCARCH)/lib/asm-offsets.s: arch/$(SRCARCH)/lib/asm-offsets.c FORCE
+ $(Q)mkdir -p $(dir $@)
+ $(call if_changed_dep,cc_s_c)
+
+$(obj)/$(offsets-file): arch/$(SRCARCH)/lib/asm-offsets.s Kbuild
+ $(call cmd,offsets)