[PATCH 2/7] perf: Honor parallel jobs

From: Borislav Petkov
Date: Wed Feb 20 2013 - 10:34:15 EST


From: Borislav Petkov <bp@xxxxxxx>

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@xxxxxxx>
---
Makefile | 4 ++--
tools/scripts/Makefile.include | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 2cd4c6be44f2..f14a9c9672be 100644
--- a/Makefile
+++ b/Makefile
@@ -1330,11 +1330,11 @@ 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 2964b96aa55f..00a05f45b39a 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); \
+ +@echo ' ' DESCEND $(1); \
mkdir -p $(OUTPUT)$(1) && \
$(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2)
endif
--
1.8.1.3.535.ga923c31

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