linux-kernel - [tip:perf/core] tools build: Add subdir support

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Date:	Wed, 18 Feb 2015 10:31:25 -0800
From:	tip-bot for Jiri Olsa <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	dsahern@...il.com, paulus@...ba.org, bp@...en8.de, acme@...hat.com,
	hpa@...or.com, peterz@...radead.org, cjashfor@...ux.vnet.ibm.com,
	eranian@...gle.com, sukadev@...ux.vnet.ibm.com,
	alexis.berlemont@...il.com, fweisbec@...il.com, mingo@...nel.org,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	will.deacon@....com, namhyung@...nel.org, jolsa@...nel.org
Subject: [tip:perf/core] tools build: Add subdir support

Commit-ID:  579ff6d409afa00e78822be9482d382dffd29ff4
Gitweb:     http://git.kernel.org/tip/579ff6d409afa00e78822be9482d382dffd29ff4
Author:     Jiri Olsa <jolsa@...nel.org>
AuthorDate: Tue, 30 Dec 2014 16:44:11 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Thu, 12 Feb 2015 11:20:44 -0300

tools build: Add subdir support

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@...nel.org>
Tested-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Tested-by: Will Deacon <will.deacon@....com>
Cc: Alexis Berlemont <alexis.berlemont@...il.com>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-h80ukls4o2kpr0e4c4bfln6u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/build/Makefile.build | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index 35174d9..692e1b1 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:
--
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