kbuild: fix generic asm-offsets.h support
iThis fixes a bug where the generated asm-offsets.h file was saved in
the source tree even with make O=.
Thanks to Stephen Rothwell <sfr@canb.auug.org.au> for the report.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/Kbuild b/Kbuild
index 1880e6f..7900391 100644
--- a/Kbuild
+++ b/Kbuild
@@ -4,7 +4,7 @@
# 1) Generate asm-offsets.h
#####
-# 1) Generate asm-offsets.h
+# 1) Generate asm-offsets.h
#
offsets-file := include/asm-$(ARCH)/asm-offsets.h
@@ -22,6 +22,7 @@
quiet_cmd_offsets = GEN $@
define cmd_offsets
+ mkdir -p $(dir $@); \
cat $< | \
(set -e; \
echo "#ifndef __ASM_OFFSETS_H__"; \
@@ -43,6 +44,6 @@
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,cc_s_c)
-$(srctree)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
+$(obj)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
$(call cmd,offsets)