Blame view

Kbuild 1.24 KB
86feeaa81   Sam Ravnborg   kbuild: full depe...
1
2
3
4
5
6
  #
  # Kbuild for top-level directory of the kernel
  # This file takes care of the following:
  # 1) Generate asm-offsets.h
  
  #####
8d36a6236   Sam Ravnborg   kbuild: fix gener...
7
  # 1) Generate asm-offsets.h
86feeaa81   Sam Ravnborg   kbuild: full depe...
8
9
10
11
12
13
14
  #
  
  offsets-file := include/asm-$(ARCH)/asm-offsets.h
  
  always  := $(offsets-file)
  targets := $(offsets-file)
  targets += arch/$(ARCH)/kernel/asm-offsets.s
048eb582f   Sam Ravnborg   kbuild: mips use ...
15
16
17
18
19
  # 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
0947640f4   Atsushi Nemoto   kbuild: mips: fix...
20
  sed-$(CONFIG_MIPS) := "/^@@@/{s/^@@@//; s/ \#.*\$$//; p;}"
048eb582f   Sam Ravnborg   kbuild: mips use ...
21

86feeaa81   Sam Ravnborg   kbuild: full depe...
22
23
  quiet_cmd_offsets = GEN     $@
  define cmd_offsets
86feeaa81   Sam Ravnborg   kbuild: full depe...
24
25
26
27
28
29
30
31
32
33
  	(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 ""; \
ac448afbc   Brian Gerst   kbuild: clean up ...
34
  	 sed -ne $(sed-y) $<; \
86feeaa81   Sam Ravnborg   kbuild: full depe...
35
36
37
38
39
40
41
42
  	 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)
8d36a6236   Sam Ravnborg   kbuild: fix gener...
43
  $(obj)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
ac448afbc   Brian Gerst   kbuild: clean up ...
44
  	$(Q)mkdir -p $(dir $@)
86feeaa81   Sam Ravnborg   kbuild: full depe...
45
  	$(call cmd,offsets)