mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 06:41:43 +00:00
8d36a62364
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>
50 lines
1.2 KiB
Makefile
50 lines
1.2 KiB
Makefile
#
|
|
# Kbuild for top-level directory of the kernel
|
|
# This file takes care of the following:
|
|
# 1) Generate asm-offsets.h
|
|
|
|
#####
|
|
# 1) Generate asm-offsets.h
|
|
#
|
|
|
|
offsets-file := include/asm-$(ARCH)/asm-offsets.h
|
|
|
|
always := $(offsets-file)
|
|
targets := $(offsets-file)
|
|
targets += arch/$(ARCH)/kernel/asm-offsets.s
|
|
|
|
# Default sed regexp - multiline due to syntax constraints
|
|
define sed-y
|
|
"/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"
|
|
endef
|
|
# Override default regexp for specific architectures
|
|
sed-$(CONFIG_MIPS) := "/^@@@/s///p"
|
|
|
|
quiet_cmd_offsets = GEN $@
|
|
define cmd_offsets
|
|
mkdir -p $(dir $@); \
|
|
cat $< | \
|
|
(set -e; \
|
|
echo "#ifndef __ASM_OFFSETS_H__"; \
|
|
echo "#define __ASM_OFFSETS_H__"; \
|
|
echo "/*"; \
|
|
echo " * DO NOT MODIFY."; \
|
|
echo " *"; \
|
|
echo " * This file was generated by $(srctree)/Kbuild"; \
|
|
echo " *"; \
|
|
echo " */"; \
|
|
echo ""; \
|
|
sed -ne $(sed-y); \
|
|
echo ""; \
|
|
echo "#endif" ) > $@
|
|
endef
|
|
|
|
# We use internal kbuild rules to avoid the "is up to date" message from make
|
|
arch/$(ARCH)/kernel/asm-offsets.s: arch/$(ARCH)/kernel/asm-offsets.c FORCE
|
|
$(Q)mkdir -p $(dir $@)
|
|
$(call if_changed_dep,cc_s_c)
|
|
|
|
$(obj)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
|
|
$(call cmd,offsets)
|
|
|