6752ed90da
Preparatory patch for the source merge of arch/i386 and arch/x86_64 into arch/x86. This allows to keep the original arch directories as stubs for the main Makefiles, Kconfigs et. al during the transition phase while having the code in the new arch/x86 directory. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
61 lines
1.6 KiB
Makefile
61 lines
1.6 KiB
Makefile
#
|
|
# Kbuild for top-level directory of the kernel
|
|
# This file takes care of the following:
|
|
# 1) Generate asm-offsets.h
|
|
# 2) Check for missing system calls
|
|
|
|
#####
|
|
# 1) Generate asm-offsets.h
|
|
#
|
|
|
|
offsets-file := include/asm-$(ARCH)/asm-offsets.h
|
|
|
|
always := $(offsets-file)
|
|
targets := $(offsets-file)
|
|
targets += arch/$(SRCARCH)/kernel/asm-offsets.s
|
|
clean-files := $(addprefix $(objtree)/,$(targets))
|
|
|
|
# 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-$(CONFIG_MIPS) := "/^@@@/{s/^@@@//; s/ \#.*\$$//; p;}"
|
|
|
|
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)/kernel/asm-offsets.s: arch/$(SRCARCH)/kernel/asm-offsets.c FORCE
|
|
$(Q)mkdir -p $(dir $@)
|
|
$(call if_changed_dep,cc_s_c)
|
|
|
|
$(obj)/$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s Kbuild
|
|
$(Q)mkdir -p $(dir $@)
|
|
$(call cmd,offsets)
|
|
|
|
#####
|
|
# 2) Check for missing system calls
|
|
#
|
|
|
|
quiet_cmd_syscalls = CALL $<
|
|
cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags)
|
|
|
|
PHONY += missing-syscalls
|
|
missing-syscalls: scripts/checksyscalls.sh FORCE
|
|
$(call cmd,syscalls)
|