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Subject[PATCH 03/36] tools build: Add subdir support
Date
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: Arnaldo Carvalho de Melo <acme@redhat.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: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
---
tools/build/Makefile.build | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index 35174d920476..692e1b154200 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -37,6 +37,11 @@ subdir-obj-y :=
build-file := $(dir)/Build
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
quiet_cmd_cc_o_c = CC $@
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
@@ -49,9 +54,11 @@ quiet_cmd_ld_multi = LD $@

# Build rules
$(OUTPUT)%.o: %.c FORCE
+ $(call rule_mkdir)
$(call if_changed_dep,cc_o_c)

$(OUTPUT)%.o: %.S FORCE
+ $(call rule_mkdir)
$(call if_changed_dep,cc_o_c)

# Gather build data:
--
1.9.3


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