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86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
1 #
2 # Kbuild for top-level directory of the kernel
3 # This file takes care of the following:
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
4 # 1) Generate bounds.h
5 # 2) Generate asm-offsets.h (may need bounds.h)
6 # 3) Check for missing system calls
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
7
8 #####
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
9 # 1) Generate bounds.h
10
01fc0ac kbuild: move bounds.h to include/generated
Sam Ravnborg authored
11 bounds-file := include/generated/bounds.h
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
12
13 always := $(bounds-file)
14 targets := $(bounds-file) kernel/bounds.s
15
16 quiet_cmd_bounds = GEN $@
17 define cmd_bounds
18 (set -e; \
19 echo "#ifndef __LINUX_BOUNDS_H__"; \
20 echo "#define __LINUX_BOUNDS_H__"; \
21 echo "/*"; \
22 echo " * DO NOT MODIFY."; \
23 echo " *"; \
24 echo " * This file was generated by Kbuild"; \
25 echo " *"; \
26 echo " */"; \
27 echo ""; \
28 sed -ne $(sed-y) $<; \
29 echo ""; \
30 echo "#endif" ) > $@
31 endef
32
33 # We use internal kbuild rules to avoid the "is up to date" message from make
34 kernel/bounds.s: kernel/bounds.c FORCE
35 $(Q)mkdir -p $(dir $@)
36 $(call if_changed_dep,cc_s_c)
37
38 $(obj)/$(bounds-file): kernel/bounds.s Kbuild
39 $(Q)mkdir -p $(dir $@)
40 $(call cmd,bounds)
41
42 #####
43 # 2) Generate asm-offsets.h
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
44 #
45
559df2e kbuild: move asm-offsets.h to include/generated
Sam Ravnborg authored
46 offsets-file := include/generated/asm-offsets.h
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
47
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
48 always += $(offsets-file)
49 targets += $(offsets-file)
6752ed9 Kbuild: allow arch/xxx to use a different source path
Thomas Gleixner authored
50 targets += arch/$(SRCARCH)/kernel/asm-offsets.s
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
51
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
52
048eb58 kbuild: mips use generic asm-offsets.h support
Sam Ravnborg authored
53 # Default sed regexp - multiline due to syntax constraints
54 define sed-y
bf2ae2b pageflags: standardize comment inclusion in asm-offsets.h and fix MIPS
Christoph Lameter authored
55 "/^->/{s:->#\(.*\):/* \1 */:; \
95a2f6f Partially revert patch that encloses asm-offset.h numbers in brackets
David Howells authored
56 s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
a22dcdb @heukelum x86, asm: Fix ancient-GAS workaround
heukelum authored
57 s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
bf2ae2b pageflags: standardize comment inclusion in asm-offsets.h and fix MIPS
Christoph Lameter authored
58 s:->::; p;}"
048eb58 kbuild: mips use generic asm-offsets.h support
Sam Ravnborg authored
59 endef
60
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
61 quiet_cmd_offsets = GEN $@
62 define cmd_offsets
63 (set -e; \
64 echo "#ifndef __ASM_OFFSETS_H__"; \
65 echo "#define __ASM_OFFSETS_H__"; \
66 echo "/*"; \
67 echo " * DO NOT MODIFY."; \
68 echo " *"; \
65ff22e @olafhering remove RPM_BUILD_ROOT from asm-offsets.h
olafhering authored
69 echo " * This file was generated by Kbuild"; \
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
70 echo " *"; \
71 echo " */"; \
72 echo ""; \
ac448af kbuild: clean up asm-offsets.h creation
Brian Gerst authored
73 sed -ne $(sed-y) $<; \
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
74 echo ""; \
75 echo "#endif" ) > $@
76 endef
77
78 # We use internal kbuild rules to avoid the "is up to date" message from make
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
79 arch/$(SRCARCH)/kernel/asm-offsets.s: arch/$(SRCARCH)/kernel/asm-offsets.c \
80 $(obj)/$(bounds-file) FORCE
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
81 $(Q)mkdir -p $(dir $@)
82 $(call if_changed_dep,cc_s_c)
83
6752ed9 Kbuild: allow arch/xxx to use a different source path
Thomas Gleixner authored
84 $(obj)/$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s Kbuild
86feeaa kbuild: full dependency check on asm-offsets.h
Sam Ravnborg authored
85 $(call cmd,offsets)
86
c53aeca kbuild: complain about missing system calls
Sam Ravnborg authored
87 #####
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
88 # 3) Check for missing system calls
c53aeca kbuild: complain about missing system calls
Sam Ravnborg authored
89 #
90
5f7efb4 @lacombar Kbuild: append missing-syscalls to the default target list
lacombar authored
91 always += missing-syscalls
92 targets += missing-syscalls
93
c53aeca kbuild: complain about missing system calls
Sam Ravnborg authored
94 quiet_cmd_syscalls = CALL $<
44656fa kbuild: Fix missing system calls check on mips.
David Daney authored
95 cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags)
c53aeca kbuild: complain about missing system calls
Sam Ravnborg authored
96
5f7efb4 @lacombar Kbuild: append missing-syscalls to the default target list
lacombar authored
97 missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE
c53aeca kbuild: complain about missing system calls
Sam Ravnborg authored
98 $(call cmd,syscalls)
1cdf25d kbuild: create a way to create preprocessor constants from C expressions
Christoph Lameter authored
99
ef8ff89 @michal42 kbuild: Really don't clean bounds.h and asm-offsets.h
michal42 authored
100 # Keep these two files during make clean
101 no-clean-files := $(bounds-file) $(offsets-file)
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