From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, Jiri Olsa <jolsa@kernel.org>,
David Ahern <dsahern@gmail.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 03/10] perf tools: Force fixdep compilation at the start of the build
Date: Wed, 7 Dec 2016 13:53:28 -0300 [thread overview]
Message-ID: <20161207165335.22835-4-acme@kernel.org> (raw)
In-Reply-To: <20161207165335.22835-1-acme@kernel.org>
From: Jiri Olsa <jolsa@kernel.org>
The fixdep tool needs to be built before everything else, because it fixes
every object dependency file.
We handle this currently by making all objects to depend on fixdep, which is
error prone and is easily forgotten when new object is added.
Instead of this, this patch force fixdep tool to be built as the first target
in the separate make session. This way we don't need to handle extra fixdep
dependencies and we are certain there's no fixdep race with any parallel make
job.
Committer notes:
Testing it:
Before:
$ rm -rf /tmp/build/perf/ ; mkdir -p /tmp/build/perf ; make -k O=/tmp/build/perf -C tools/perf install-bin
make: Entering directory '/home/acme/git/linux/tools/perf'
BUILD: Doing 'make -j4' parallel build
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libaudit: [ on ]
... libbfd: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libslang: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
GEN /tmp/build/perf/common-cmds.h
HOSTCC /tmp/build/perf/fixdep.o
HOSTLD /tmp/build/perf/fixdep-in.o
LINK /tmp/build/perf/fixdep
MKDIR /tmp/build/perf/pmu-events/
HOSTCC /tmp/build/perf/pmu-events/json.o
MKDIR /tmp/build/perf/pmu-events/
HOSTCC /tmp/build/perf/pmu-events/jsmn.o
HOSTCC /tmp/build/perf/pmu-events/jevents.o
HOSTLD /tmp/build/perf/pmu-events/jevents-in.o
PERF_VERSION = 4.9.rc8.g868cd5
CC /tmp/build/perf/perf-read-vdso32
<SNIP>
After:
$ rm -rf /tmp/build/perf/ ; mkdir -p /tmp/build/perf ; make -k O=/tmp/build/perf -C tools/perf install-bin
make: Entering directory '/home/acme/git/linux/tools/perf'
BUILD: Doing 'make -j4' parallel build
HOSTCC /tmp/build/perf/fixdep.o
HOSTLD /tmp/build/perf/fixdep-in.o
LINK /tmp/build/perf/fixdep
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libaudit: [ on ]
... libbfd: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libslang: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
GEN /tmp/build/perf/common-cmds.h
MKDIR /tmp/build/perf/fd/
CC /tmp/build/perf/fd/array.o
LD /tmp/build/perf/fd/libapi-in.o
MKDIR /tmp/build/perf/fs/
CC /tmp/build/perf/event-parse.o
CC /tmp/build/perf/fs/fs.o
PERF_VERSION = 4.9.rc8.g57a92f
CC /tmp/build/perf/event-plugin.o
MKDIR /tmp/build/perf/fs/
CC /tmp/build/perf/fs/tracing_path.o
<SNIP>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1481030331-31944-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Makefile.perf | 50 ++++++++++++++++++++++++++++++++++++------------
1 file changed, 38 insertions(+), 12 deletions(-)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 9e5a6e1a387d..33b1d9f8555f 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -181,6 +181,35 @@ ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
endif
endif
+# The fixdep build - we force fixdep tool to be built as
+# the first target in the separate make session not to be
+# disturbed by any parallel make jobs. Once fixdep is done
+# we issue the requested build with FIXDEP=1 variable.
+#
+# The fixdep build is disabled for $(NON_CONFIG_TARGETS)
+# targets, because it's not necessary.
+
+ifdef FIXDEP
+ force_fixdep := 0
+else
+ force_fixdep := $(config)
+endif
+
+export srctree OUTPUT RM CC CXX LD AR CFLAGS CXXFLAGS V BISON FLEX AWK
+export HOSTCC HOSTLD HOSTAR
+
+include $(srctree)/tools/build/Makefile.include
+
+ifeq ($(force_fixdep),1)
+goals := $(filter-out all sub-make, $(MAKECMDGOALS))
+
+$(goals) all: sub-make
+
+sub-make: fixdep
+ $(Q)$(MAKE) FIXDEP=1 -f Makefile.perf $(goals)
+
+else # force_fixdep
+
# Set FEATURE_TESTS to 'all' so all possible feature checkers are executed.
# Without this setting the output feature dump file misses some features, for
# example, liberty. Select all checkers so we won't get an incomplete feature
@@ -365,10 +394,6 @@ strip: $(PROGRAMS) $(OUTPUT)perf
PERF_IN := $(OUTPUT)perf-in.o
-export srctree OUTPUT RM CC CXX LD AR CFLAGS CXXFLAGS V BISON FLEX AWK
-export HOSTCC HOSTLD HOSTAR
-include $(srctree)/tools/build/Makefile.include
-
JEVENTS := $(OUTPUT)pmu-events/jevents
JEVENTS_IN := $(OUTPUT)pmu-events/jevents-in.o
@@ -487,7 +512,7 @@ $(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(PMU_EVENTS_IN) $(LIBTRACEEVENT_DYNAMIC_L
$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS) \
$(PERF_IN) $(PMU_EVENTS_IN) $(LIBS) -o $@
-$(GTK_IN): fixdep FORCE
+$(GTK_IN): FORCE
$(Q)$(MAKE) $(build)=gtk
$(OUTPUT)libperf-gtk.so: $(GTK_IN) $(PERFLIBS)
@@ -536,7 +561,7 @@ endif
__build-dir = $(subst $(OUTPUT),,$(dir $@))
build-dir = $(if $(__build-dir),$(__build-dir),.)
-prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h fixdep archheaders
+prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders
$(OUTPUT)%.o: %.c prepare FORCE
$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
@@ -586,7 +611,7 @@ $(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h)
LIBPERF_IN := $(OUTPUT)libperf-in.o
-$(LIBPERF_IN): prepare fixdep FORCE
+$(LIBPERF_IN): prepare FORCE
$(Q)$(MAKE) $(build)=libperf
$(LIB_FILE): $(LIBPERF_IN)
@@ -594,10 +619,10 @@ $(LIB_FILE): $(LIBPERF_IN)
LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ)
-$(LIBTRACEEVENT): fixdep FORCE
+$(LIBTRACEEVENT): FORCE
$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a
-libtraceevent_plugins: fixdep FORCE
+libtraceevent_plugins: FORCE
$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) plugins
$(LIBTRACEEVENT_DYNAMIC_LIST): libtraceevent_plugins
@@ -610,21 +635,21 @@ $(LIBTRACEEVENT)-clean:
install-traceevent-plugins: libtraceevent_plugins
$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins
-$(LIBAPI): fixdep FORCE
+$(LIBAPI): FORCE
$(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a
$(LIBAPI)-clean:
$(call QUIET_CLEAN, libapi)
$(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
-$(LIBBPF): fixdep FORCE
+$(LIBBPF): FORCE
$(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) $(OUTPUT)libbpf.a FEATURES_DUMP=$(FEATURE_DUMP_EXPORT)
$(LIBBPF)-clean:
$(call QUIET_CLEAN, libbpf)
$(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) clean >/dev/null
-$(LIBSUBCMD): fixdep FORCE
+$(LIBSUBCMD): FORCE
$(Q)$(MAKE) -C $(SUBCMD_DIR) O=$(OUTPUT) $(OUTPUT)libsubcmd.a
$(LIBSUBCMD)-clean:
@@ -832,3 +857,4 @@ FORCE:
.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope FORCE prepare
.PHONY: libtraceevent_plugins archheaders
+endif # force_fixdep
--
2.9.3
next prev parent reply other threads:[~2016-12-07 16:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-07 16:53 [GIT PULL 00/10] perf/core improvements and fixes Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 01/10] perf build: Check LLVM version in feature check Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 02/10] perf tools: Move PERF-VERSION-FILE target into rules area Arnaldo Carvalho de Melo
2016-12-07 16:53 ` Arnaldo Carvalho de Melo [this message]
2016-12-07 16:53 ` [PATCH 04/10] perf tools: Move perf build related variables under non fixdep leg Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 05/10] perf sched timehist: Improve error message when analyzing wrong file Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 06/10] perf sched: Cleanup option processing Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 07/10] perf callchain: Introduce callchain_cursor__copy() Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 08/10] perf sched timehist: Handle zero sample->tid properly Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 09/10] perf sched timehist: Cleanup idle_max_cpu handling Arnaldo Carvalho de Melo
2016-12-07 16:53 ` [PATCH 10/10] perf tools: Explicitly document that --children is enabled by default Arnaldo Carvalho de Melo
2016-12-07 18:17 ` [GIT PULL 00/10] perf/core improvements and fixes Ingo Molnar
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