Get more verbose output wrt displaying executed commands
from make.

Signed-off-by: Jiri Olsa <jo...@kernel.org>
Cc: Alexis Berlemont <alexis.berlem...@gmail.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
---
 tools/perf/Makefile.perf | 48 +++++++++++++++++++++++++++---------------------
 1 file changed, 27 insertions(+), 21 deletions(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 6b6bef8a515a..d5f1d3feea17 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -89,13 +89,19 @@ VPATH += $(OUTPUT)
 export VPATH
 endif
 
+ifeq ($(V),1)
+  Q =
+else
+  Q = @
+endif
+
 # Do not use make's built-in rules and variables
 # (this increases performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -rR
 
 $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
-       @$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
-       @touch $(OUTPUT)PERF-VERSION-FILE
+       $(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
+       $(Q)touch $(OUTPUT)PERF-VERSION-FILE
 
 CC = $(CROSS_COMPILE)gcc
 LD = $(CROSS_COMPILE)ld
@@ -251,7 +257,7 @@ SHELL = $(SHELL_PATH)
 all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) 
$(OTHER_PROGRAMS)
 
 please_set_SHELL_PATH_to_a_more_modern_shell:
-       @$$(:)
+       $(Q)$$(:)
 
 shell_compatibility_test: please_set_SHELL_PATH_to_a_more_modern_shell
 
@@ -264,13 +270,13 @@ export srctree OUTPUT RM CC LD CFLAGS V BISON FLEX
 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
 $(PERF_IN): $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h FORCE
-       @$(MAKE) $(build)=perf
+       $(Q)$(MAKE) $(build)=perf
 
 $(OUTPUT)perf: $(PERFLIBS) $(PERF_IN)
        $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(PERF_IN) $(LIBS) -o $@
 
 $(GTK_IN): FORCE
-       @$(MAKE) $(build)=gtk
+       $(Q)$(MAKE) $(build)=gtk
 
 $(OUTPUT)libperf-gtk.so: $(GTK_IN) $(PERFLIBS)
        $(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)
@@ -315,25 +321,25 @@ build-dir   = $(if $(__build-dir),$(__build-dir),.)
 single_dep: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
 
 $(OUTPUT)%.o: %.c single_dep FORCE
-       @$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+       $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.i: %.c single_dep FORCE
-       @$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+       $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.s: %.c single_dep FORCE
-       @$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+       $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%-bison.o: %.c single_dep FORCE
-       @$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+       $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%-flex.o: %.c single_dep FORCE
-       @$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+       $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.o: %.S single_dep FORCE
-       @$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+       $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.i: %.S single_dep FORCE
-       @$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+       $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)perf-%: %.o $(PERFLIBS)
        $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)
@@ -353,7 +359,7 @@ $(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h)
 LIBPERF_IN := $(OUTPUT)libperf-in.o
 
 $(LIBPERF_IN): FORCE
-       @$(MAKE) $(build)=libperf
+       $(Q)$(MAKE) $(build)=libperf
 
 $(LIB_FILE): $(LIBPERF_IN)
        $(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIBPERF_IN) $(LIB_OBJS)
@@ -362,21 +368,21 @@ LIBTRACEEVENT_FLAGS += CFLAGS="-g -Wall $(EXTRA_CFLAGS)"
 LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ)
 
 $(LIBTRACEEVENT): FORCE
-       @$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) 
$(OUTPUT)libtraceevent.a plugins
+       $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) 
$(OUTPUT)libtraceevent.a plugins
 
 $(LIBTRACEEVENT)-clean:
        $(call QUIET_CLEAN, libtraceevent)
-       @$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
+       $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
 
 install-traceevent-plugins: $(LIBTRACEEVENT)
-       @$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) 
install_plugins
+       $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) 
install_plugins
 
 $(LIBAPIKFS): FORCE
-       @$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a
+       $(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a
 
 $(LIBAPIKFS)-clean:
        $(call QUIET_CLEAN, libapi)
-       @$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
+       $(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
 
 help:
        @echo 'Perf make targets:'
@@ -514,12 +520,12 @@ $(INSTALL_DOC_TARGETS):
 #
 config-clean:
        $(call QUIET_CLEAN, config)
-       @$(MAKE) -C config/feature-checks clean >/dev/null
+       $(Q)$(MAKE) -C config/feature-checks clean >/dev/null
 
 clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean
        $(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_FILE) $(OUTPUT)perf-archive 
$(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
-       @find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
-       @$(RM) .config-detected
+       $(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
+       $(Q)$(RM) .config-detected
        $(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf 
perf-read-vdso32 perf-read-vdsox32
        $(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc 
*/*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE 
$(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
        $(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
-- 
1.9.3

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