linux-kernel - [tip:perf/core] perf tools: Honor parallel jobs

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Message-ID: <tip-a50e43332756a5ac8d00f3367a54d9effeb9c674@git.kernel.org>
Date:	Thu, 21 Mar 2013 03:50:36 -0700
From:	tip-bot for Borislav Petkov <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com,
	mingo@...nel.org, rostedt@...dmis.org, tglx@...utronix.de,
	bp@...e.de
Subject: [tip:perf/core] perf tools: Honor parallel jobs

Commit-ID:  a50e43332756a5ac8d00f3367a54d9effeb9c674
Gitweb:     http://git.kernel.org/tip/a50e43332756a5ac8d00f3367a54d9effeb9c674
Author:     Borislav Petkov <bp@...e.de>
AuthorDate: Wed, 20 Feb 2013 16:32:28 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 15 Mar 2013 13:05:59 -0300

perf tools: Honor parallel jobs

We need to hand down parallel build options like the internal make
--jobserver-fds one so that parallel builds can also happen when
building perf from the toplevel directory.

Make it so #1!

Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Link: http://lkml.kernel.org/r/1361374353-30385-3-git-send-email-bp@alien8.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 Makefile                       | 4 ++--
 tools/scripts/Makefile.include | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 6fccf65..bbb15df 100644
--- a/Makefile
+++ b/Makefile
@@ -1331,11 +1331,11 @@ kernelversion:
 # Clear a bunch of variables before executing the submake
 tools/: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/
 
 tools/%: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/ $*
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $*
 
 # Single targets
 # ---------------------------------------------------------------------------
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 2964b96..00a05f4 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -70,7 +70,7 @@ ifndef V
 	QUIET_BISON    = @echo '   ' BISON $@;
 
 	descend = \
-		@echo '   ' DESCEND $(1); \
+		+@...o '   ' DESCEND $(1); \
 		mkdir -p $(OUTPUT)$(1) && \
 		$(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2)
 endif
--
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