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tools build: Add subdir support

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Add support to make directory any time we build objects out of the tree
(O=/tmp/krava) and the output directory does not exist.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Cc: Alexis Berlemont <alexis.berlemont@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-h80ukls4o2kpr0e4c4bfln6u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2014-12-30 16:44:11 +01:00 committed by Arnaldo Carvalho de Melo
parent fcfd6611fb
commit 579ff6d409
1 changed files with 7 additions and 0 deletions
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7
tools/build/Makefile.build
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@ -37,6 +37,11 @@ subdir-obj-y :=
build-file := $(dir)/Build build-file := $(dir)/Build
include $(build-file) include $(build-file)
# Create directory unless it exists
quiet_cmd_mkdir = MKDIR $(dir $@)
cmd_mkdir = mkdir -p $(dir $@)
rule_mkdir = $(if $(wildcard $(dir $@)),,@$(call echo-cmd,mkdir) $(cmd_mkdir))
# Compile command # Compile command
quiet_cmd_cc_o_c = CC $@ quiet_cmd_cc_o_c = CC $@
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
@ -49,9 +54,11 @@ quiet_cmd_ld_multi = LD $@
# Build rules # Build rules
$(OUTPUT)%.o: %.c FORCE $(OUTPUT)%.o: %.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c) $(call if_changed_dep,cc_o_c)
$(OUTPUT)%.o: %.S FORCE $(OUTPUT)%.o: %.S FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c) $(call if_changed_dep,cc_o_c)
# Gather build data: # Gather build data: