Lines Matching +full:build +full:- +full:linux +full:- +full:gcc
12 dot-target = $(dir $@).$(notdir $@)
15 # The temporary file to save gcc -MD generated dependencies must not
17 depfile = $(subst $(comma),_,$(dot-target).d)
48 # - If no file exist it is created
49 # - If the content differ the new file is used
50 # - If they are equal no change, and no timestamp update
51 # - stdin is piped in from the first prerequisite ($<) so one has
54 $(Q)set -e; \
56 mkdir -p $(dir $@); \
58 if [ -r $@ ] && cmp -s $@ $@.tmp; then \
59 rm -f $@.tmp; \
62 mv -f $@.tmp $@; \
67 # gcc support functions
70 # cc-cross-prefix
71 # Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
74 cc-cross-prefix = \
76 $(shell set -e; \
84 # try-run
85 # Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
88 try-run = $(shell set -e; \
95 rm -f "$$TMP" "$$TMPO")
97 # as-option
98 # Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
100 as-option = $(call try-run,\
101 $(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
103 # as-instr
104 # Usage: cflags-y += $(call as-instr,instr,option1,option2)
106 as-instr = $(call try-run,\
107 printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
109 # cc-option
110 # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
112 cc-option = $(call try-run,\
113 $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
115 # cc-option-yn
116 # Usage: flag := $(call cc-option-yn,-march=winchip-c6)
117 cc-option-yn = $(call try-run,\
118 $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
120 # cc-option-align
121 # Prefix align with either -falign or -malign
122 cc-option-align = $(subst -functions=0,,\
123 $(call cc-option,-falign-functions=0,-malign-functions=0))
125 # cc-disable-warning
126 # Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
127 cc-disable-warning = $(call try-run,\
128 …$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(stri…
130 # cc-version
131 # Usage gcc-ver := $(call cc-version)
132 cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
134 # cc-fullversion
135 # Usage gcc-ver := $(call cc-fullversion)
136 cc-fullversion = $(shell $(CONFIG_SHELL) \
137 $(srctree)/scripts/gcc-version.sh -p $(CC))
139 # cc-ifversion
140 # Usage: EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
141 cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))
143 # cc-ldoption
144 # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
145 cc-ldoption = $(call try-run,\
146 $(CC) $(1) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
148 # ld-option
149 # Usage: LDFLAGS += $(call ld-option, -X)
150 ld-option = $(call try-run,\
151 $(CC) /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))
153 # ar-option
154 # Usage: KBUILD_ARFLAGS := $(call ar-option,D)
156 ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
161 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
163 # $(Q)$(MAKE) $(build)=dir
164 build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
167 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj=
170 modbuiltin := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.modbuiltin obj
172 # Prefix -I with $(srctree) if it is not an absolute path.
173 # skip if -I has no parameter
174 addtree = $(if $(patsubst -I%,%,$(1)), \
175 $(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1))
177 # Find all -I options and call addtree
178 flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))
182 echo-cmd = $(if $($(quiet)cmd_$(1)),\
183 echo ' $(call escsq,$($(quiet)cmd_$(1)))$(echo-why)';)
186 cmd = @$(echo-cmd) $(cmd_$(1))
192 # if_changed - execute command if any prerequisite is newer than
194 # if_changed_dep - as if_changed, but uses fixdep to reveal dependencies
196 # if_changed_rule - as if_changed but execute rule instead
202 arg-check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \
203 $(filter-out $(cmd_$@), $(cmd_$(1))) )
205 arg-check = $(if $(strip $(cmd_$@)),,1)
210 # note: when using inline perl scripts [perl -e '...$$t=1;...']
212 make-cmd = $(subst \\,\\\\,$(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))))
216 any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
220 if_changed = $(if $(strip $(any-prereq) $(arg-check)), \
221 @set -e; \
222 $(echo-cmd) $(cmd_$(1)); \
223 echo 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd)
226 if_changed_dep = $(if $(strip $(any-prereq) $(arg-check) ), \
227 @set -e; \
228 $(echo-cmd) $(cmd_$(1)); \
229 scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(dot-target).tmp;\
230 rm -f $(depfile); \
231 mv -f $(dot-target).tmp $(dot-target).cmd)
236 if_changed_rule = $(if $(strip $(any-prereq) $(arg-check) ), \
237 @set -e; \
241 # why - tell why a a target got build
244 # (1) - due to target is PHONY
245 # (2) - due to target missing
246 # (3) - due to: file1.h file2.h
247 # (4) - due to command line change
248 # (5) - due to missing .cmd file
249 # (6) - due to target not in $(targets)
250 # (1) PHONY targets are always build
251 # (2) No target, so we better build it
261 $(if $(filter $@, $(PHONY)),- due to target is PHONY, \
263 $(if $(strip $(any-prereq)),- due to: $(any-prereq), \
264 $(if $(arg-check), \
265 $(if $(cmd_$@),- due to command line change, \
267 - due to missing .cmd file, \
268 - due to $(notdir $@) not in $$(targets) \
273 - due to target missing \
277 echo-why = $(call escsq, $(strip $(why)))