diff options
Diffstat (limited to 'scripts/Makefile.lib')
-rw-r--r-- | scripts/Makefile.lib | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 6e079f38a2c6..0f81dcfd6909 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib | |||
@@ -1,13 +1,3 @@ | |||
1 | # =========================================================================== | ||
2 | # kbuild: Generic definitions | ||
3 | # =========================================================================== | ||
4 | |||
5 | # Standard vars | ||
6 | |||
7 | comma := , | ||
8 | empty := | ||
9 | space := $(empty) $(empty) | ||
10 | |||
11 | # Backward compatibility - to be removed... | 1 | # Backward compatibility - to be removed... |
12 | extra-y += $(EXTRA_TARGETS) | 2 | extra-y += $(EXTRA_TARGETS) |
13 | # Figure out what we need to build from the various variables | 3 | # Figure out what we need to build from the various variables |
@@ -84,10 +74,6 @@ multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m)) | |||
84 | subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) | 74 | subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) |
85 | obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) | 75 | obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) |
86 | 76 | ||
87 | # The temporary file to save gcc -MD generated dependencies must not | ||
88 | # contain a comma | ||
89 | depfile = $(subst $(comma),_,$(@D)/.$(@F).d) | ||
90 | |||
91 | # These flags are needed for modversions and compiling, so we define them here | 77 | # These flags are needed for modversions and compiling, so we define them here |
92 | # already | 78 | # already |
93 | # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will | 79 | # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will |
@@ -179,84 +165,4 @@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ | |||
179 | quiet_cmd_gzip = GZIP $@ | 165 | quiet_cmd_gzip = GZIP $@ |
180 | cmd_gzip = gzip -f -9 < $< > $@ | 166 | cmd_gzip = gzip -f -9 < $< > $@ |
181 | 167 | ||
182 | # =========================================================================== | ||
183 | # Generic stuff | ||
184 | # =========================================================================== | ||
185 | |||
186 | ifneq ($(KBUILD_NOCMDDEP),1) | ||
187 | # Check if both arguments has same arguments. Result in empty string if equal | ||
188 | # User may override this check using make KBUILD_NOCMDDEP=1 | ||
189 | arg-check = $(strip $(filter-out $(1), $(2)) $(filter-out $(2), $(1)) ) | ||
190 | |||
191 | endif | ||
192 | |||
193 | # echo command. Short version is $(quiet) equals quiet, otherwise full command | ||
194 | echo-cmd = $(if $($(quiet)cmd_$(1)), \ | ||
195 | echo ' $(subst ','\'',$($(quiet)cmd_$(1)))';) | ||
196 | |||
197 | # function to only execute the passed command if necessary | ||
198 | # >'< substitution is for echo to work, >$< substitution to preserve $ when reloading .cmd file | ||
199 | # note: when using inline perl scripts [perl -e '...$$t=1;...'] in $(cmd_xxx) double $$ your perl vars | ||
200 | # | ||
201 | if_changed = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ | ||
202 | @set -e; \ | ||
203 | $(echo-cmd) \ | ||
204 | $(cmd_$(1)); \ | ||
205 | echo 'cmd_$@ := $(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).cmd) | ||
206 | |||
207 | |||
208 | # execute the command and also postprocess generated .d dependencies | ||
209 | # file | ||
210 | |||
211 | if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\ | ||
212 | $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ | ||
213 | @set -e; \ | ||
214 | $(echo-cmd) \ | ||
215 | $(cmd_$(1)); \ | ||
216 | scripts/basic/fixdep $(depfile) $@ '$(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).tmp; \ | ||
217 | rm -f $(depfile); \ | ||
218 | mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd) | ||
219 | |||
220 | # Usage: $(call if_changed_rule,foo) | ||
221 | # will check if $(cmd_foo) changed, or any of the prequisites changed, | ||
222 | # and if so will execute $(rule_foo) | ||
223 | |||
224 | if_changed_rule = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ),\ | ||
225 | @set -e; \ | ||
226 | $(rule_$(1))) | ||
227 | |||
228 | # If quiet is set, only print short version of command | ||
229 | |||
230 | cmd = @$(if $($(quiet)cmd_$(1)),echo ' $(subst ','\'',$($(quiet)cmd_$(1)))' &&) $(cmd_$(1)) | ||
231 | |||
232 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj= | ||
233 | # Usage: | ||
234 | # $(Q)$(MAKE) $(build)=dir | ||
235 | build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj | ||
236 | |||
237 | # filechk is used to check if the content of a generated file is updated. | ||
238 | # Sample usage: | ||
239 | # define filechk_sample | ||
240 | # echo $KERNELRELEASE | ||
241 | # endef | ||
242 | # version.h : Makefile | ||
243 | # $(call filechk,sample) | ||
244 | # The rule defined shall write to stdout the content of the new file. | ||
245 | # The existing file will be compared with the new one. | ||
246 | # - If no file exist it is created | ||
247 | # - If the content differ the new file is used | ||
248 | # - If they are equal no change, and no timestamp update | ||
249 | |||
250 | define filechk | ||
251 | $(Q)set -e; \ | ||
252 | echo ' CHK $@'; \ | ||
253 | mkdir -p $(dir $@); \ | ||
254 | $(filechk_$(1)) $(2) > $@.tmp; \ | ||
255 | if [ -r $@ ] && cmp -s $@ $@.tmp; then \ | ||
256 | rm -f $@.tmp; \ | ||
257 | else \ | ||
258 | echo ' UPD $@'; \ | ||
259 | mv -f $@.tmp $@; \ | ||
260 | fi | ||
261 | endef | ||
262 | 168 | ||