| # 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 |
| "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}" |
| # Override default regexp for specific architectures |
| sed-$(CONFIG_MIPS) := "/^@@@/{s/^@@@//; s/ \#.*\$$//; p;}" |
| quiet_cmd_offsets = GEN $@ |
| echo "#ifndef __ASM_OFFSETS_H__"; \ |
| echo "#define __ASM_OFFSETS_H__"; \ |
| echo " * DO NOT MODIFY."; \ |
| echo " * This file was generated by $(srctree)/Kbuild"; \ |
| # We use internal kbuild rules to avoid the "is up to date" message from make |
| arch/$(ARCH)/kernel/asm-offsets.s: arch/$(ARCH)/kernel/asm-offsets.c FORCE |
| $(call if_changed_dep,cc_s_c) |
| $(obj)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild |