From 85c66be101e1847f0eb46dcb48d5738572129694 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 20 Feb 2013 16:32:30 +0100 Subject: [PATCH] perf tools: Introduce tools/lib/lk library This introduces the tools/lib/lk library, that will gradually have the routines that now are used in tools/perf/ and other tools and that can be shared. Start by carving out debugfs routines for general use. Signed-off-by: Borislav Petkov Cc: Ingo Molnar Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1361374353-30385-5-git-send-email-bp@alien8.de [ committer note: Add tools/lib/lk/ to perf's MANIFEST so that its tarballs continue to build ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/Makefile | 16 ++++++++++-- tools/lib/lk/Makefile | 35 +++++++++++++++++++++++++++ tools/{perf/util => lib/lk}/debugfs.c | 21 ++++++++++------ tools/lib/lk/debugfs.h | 31 ++++++++++++++++++++++++ tools/perf/MANIFEST | 1 + tools/perf/Makefile | 34 ++++++++++++++++++++------ tools/perf/builtin-kvm.c | 2 +- tools/perf/builtin-probe.c | 2 +- tools/perf/perf.c | 2 +- tools/perf/tests/parse-events.c | 2 +- tools/perf/util/debugfs.h | 12 --------- tools/perf/util/evlist.c | 2 +- tools/perf/util/evsel.c | 2 +- tools/perf/util/parse-events.c | 2 +- tools/perf/util/probe-event.c | 2 +- tools/perf/util/python-ext-sources | 1 - tools/perf/util/setup.py | 3 ++- tools/perf/util/trace-event-info.c | 2 +- 18 files changed, 132 insertions(+), 40 deletions(-) create mode 100644 tools/lib/lk/Makefile rename tools/{perf/util => lib/lk}/debugfs.c (89%) create mode 100644 tools/lib/lk/debugfs.h delete mode 100644 tools/perf/util/debugfs.h diff --git a/tools/Makefile b/tools/Makefile index 798fa0ef048..623b1cd86cb 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -33,7 +33,13 @@ help: cpupower: FORCE $(call descend,power/$@) -firewire lguest perf usb virtio vm: FORCE +firewire guest usb virtio vm: FORCE + $(call descend,$@) + +liblk: FORCE + $(call descend,lib/lk) + +perf: liblk FORCE $(call descend,$@) selftests: FORCE @@ -61,7 +67,13 @@ install: cpupower_install firewire_install lguest_install perf_install \ cpupower_clean: $(call descend,power/cpupower,clean) -firewire_clean lguest_clean perf_clean usb_clean virtio_clean vm_clean: +firewire_clean lguest_clean usb_clean virtio_clean vm_clean: + $(call descend,$(@:_clean=),clean) + +liblk_clean: + $(call descend,lib/lk,clean) + +perf_clean: liblk_clean $(call descend,$(@:_clean=),clean) selftests_clean: diff --git a/tools/lib/lk/Makefile b/tools/lib/lk/Makefile new file mode 100644 index 00000000000..8cf576f1a00 --- /dev/null +++ b/tools/lib/lk/Makefile @@ -0,0 +1,35 @@ +include ../../scripts/Makefile.include + +# guard against environment variables +LIB_H= +LIB_OBJS= + +LIB_H += debugfs.h + +LIB_OBJS += $(OUTPUT)debugfs.o + +LIBFILE = liblk.a + +CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC +EXTLIBS = -lpthread -lrt -lelf -lm +ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 +ALL_LDFLAGS = $(LDFLAGS) + +RM = rm -f + +$(LIBFILE): $(LIB_OBJS) + $(QUIET_AR)$(RM) $@ && $(AR) rcs $(OUTPUT)$@ $(LIB_OBJS) + +$(LIB_OBJS): $(LIB_H) + +$(OUTPUT)%.o: %.c + $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $< +$(OUTPUT)%.s: %.c + $(QUIET_CC)$(CC) -S $(ALL_CFLAGS) $< +$(OUTPUT)%.o: %.S + $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $< + +clean: + $(RM) $(LIB_OBJS) $(LIBFILE) + +.PHONY: clean diff --git a/tools/perf/util/debugfs.c b/tools/lib/lk/debugfs.c similarity index 89% rename from tools/perf/util/debugfs.c rename to tools/lib/lk/debugfs.c index e55495c7823..9cda7a6f591 100644 --- a/tools/perf/util/debugfs.c +++ b/tools/lib/lk/debugfs.c @@ -1,14 +1,19 @@ -#include "util.h" -#include "debugfs.h" -#include "cache.h" - -#include +#include +#include +#include +#include +#include +#include #include +#include +#include + +#include "debugfs.h" char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug"; char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; -static const char *debugfs_known_mountpoints[] = { +static const char * const debugfs_known_mountpoints[] = { "/sys/kernel/debug/", "/debug/", 0, @@ -19,12 +24,12 @@ static bool debugfs_found; /* find the path to the mounted debugfs */ const char *debugfs_find_mountpoint(void) { - const char **ptr; + const char * const *ptr; char type[100]; FILE *fp; if (debugfs_found) - return (const char *) debugfs_mountpoint; + return (const char *)debugfs_mountpoint; ptr = debugfs_known_mountpoints; while (*ptr) { diff --git a/tools/lib/lk/debugfs.h b/tools/lib/lk/debugfs.h new file mode 100644 index 00000000000..bc5ad2df7c0 --- /dev/null +++ b/tools/lib/lk/debugfs.h @@ -0,0 +1,31 @@ +#ifndef __LK_DEBUGFS_H__ +#define __LK_DEBUGFS_H__ + +#define _STR(x) #x +#define STR(x) _STR(x) + +/* + * On most systems would have given us this, but not on some systems + * (e.g. GNU/Hurd). + */ +#ifndef PATH_MAX +#define PATH_MAX 4096 +#endif + +#ifndef DEBUGFS_MAGIC +#define DEBUGFS_MAGIC 0x64626720 +#endif + +#ifndef PERF_DEBUGFS_ENVIRONMENT +#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR" +#endif + +const char *debugfs_find_mountpoint(void); +int debugfs_valid_mountpoint(const char *debugfs); +char *debugfs_mount(const char *mountpoint); +void debugfs_set_path(const char *mountpoint); + +extern char debugfs_mountpoint[]; +extern char tracing_events_path[]; + +#endif /* __LK_DEBUGFS_H__ */ diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index 39d41068484..025de796067 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -1,6 +1,7 @@ tools/perf tools/scripts tools/lib/traceevent +tools/lib/lk include/linux/const.h include/linux/perf_event.h include/linux/rbtree.h diff --git a/tools/perf/Makefile b/tools/perf/Makefile index bb74c79cd16..3dcd6273a90 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -215,6 +215,7 @@ BASIC_CFLAGS = \ -Iutil \ -I. \ -I$(TRACE_EVENT_DIR) \ + -I../lib/ \ -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE BASIC_LDFLAGS = @@ -240,19 +241,28 @@ SCRIPT_SH += perf-archive.sh grep-libs = $(filter -l%,$(1)) strip-libs = $(filter-out -l%,$(1)) +LK_DIR = ../lib/lk/ TRACE_EVENT_DIR = ../lib/traceevent/ +LK_PATH=$(LK_DIR) + ifneq ($(OUTPUT),) TE_PATH=$(OUTPUT) +ifneq ($(subdir),) + LK_PATH=$(OUTPUT)$(LK_DIR) +else + LK_PATH=$(OUTPUT) +endif else TE_PATH=$(TRACE_EVENT_DIR) endif LIBTRACEEVENT = $(TE_PATH)libtraceevent.a -TE_LIB := -L$(TE_PATH) -ltraceevent - export LIBTRACEEVENT +LIBLK = $(LK_PATH)liblk.a +export LIBLK + # python extension build directories PYTHON_EXTBUILD := $(OUTPUT)python_ext_build/ PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/ @@ -355,7 +365,6 @@ LIB_H += util/cache.h LIB_H += util/callchain.h LIB_H += util/build-id.h LIB_H += util/debug.h -LIB_H += util/debugfs.h LIB_H += util/sysfs.h LIB_H += util/pmu.h LIB_H += util/event.h @@ -416,7 +425,6 @@ LIB_OBJS += $(OUTPUT)util/annotate.o LIB_OBJS += $(OUTPUT)util/build-id.o LIB_OBJS += $(OUTPUT)util/config.o LIB_OBJS += $(OUTPUT)util/ctype.o -LIB_OBJS += $(OUTPUT)util/debugfs.o LIB_OBJS += $(OUTPUT)util/sysfs.o LIB_OBJS += $(OUTPUT)util/pmu.o LIB_OBJS += $(OUTPUT)util/environment.o @@ -536,7 +544,7 @@ BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o BUILTIN_OBJS += $(OUTPUT)builtin-inject.o BUILTIN_OBJS += $(OUTPUT)tests/builtin-test.o -PERFLIBS = $(LIB_FILE) $(LIBTRACEEVENT) +PERFLIBS = $(LIB_FILE) $(LIBLK) $(LIBTRACEEVENT) # # Platform specific tweaks @@ -1051,6 +1059,18 @@ $(LIBTRACEEVENT): $(LIBTRACEEVENT)-clean: $(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean +# if subdir is set, we've been called from above so target has been built +# already +$(LIBLK): +ifeq ($(subdir),) + $(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) liblk.a +endif + +$(LIBLK)-clean: +ifeq ($(subdir),) + $(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean +endif + help: @echo 'Perf make targets:' @echo ' doc - make *all* documentation (see below)' @@ -1171,7 +1191,7 @@ $(INSTALL_DOC_TARGETS): ### Cleaning rules -clean: $(LIBTRACEEVENT)-clean +clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS) $(RM) $(ALL_PROGRAMS) perf $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* @@ -1181,6 +1201,6 @@ clean: $(LIBTRACEEVENT)-clean $(RM) $(OUTPUT)util/*-flex* $(python-clean) -.PHONY: all install clean strip $(LIBTRACEEVENT) +.PHONY: all install clean strip $(LIBTRACEEVENT) $(LIBLK) .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell .PHONY: .FORCE-PERF-VERSION-FILE TAGS tags cscope .FORCE-PERF-CFLAGS diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 37a769d7f9f..533501e2b07 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -12,7 +12,7 @@ #include "util/parse-options.h" #include "util/trace-event.h" #include "util/debug.h" -#include "util/debugfs.h" +#include #include "util/tool.h" #include "util/stat.h" diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c index de38a034b12..e8a66f9a671 100644 --- a/tools/perf/builtin-probe.c +++ b/tools/perf/builtin-probe.c @@ -37,7 +37,7 @@ #include "util/strfilter.h" #include "util/symbol.h" #include "util/debug.h" -#include "util/debugfs.h" +#include #include "util/parse-options.h" #include "util/probe-finder.h" #include "util/probe-event.h" diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 095b88207cd..f53b735e282 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -13,7 +13,7 @@ #include "util/quote.h" #include "util/run-command.h" #include "util/parse-events.h" -#include "util/debugfs.h" +#include #include const char perf_usage_string[] = diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index c5636f36fe3..0d3d0c59f92 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -3,7 +3,7 @@ #include "evsel.h" #include "evlist.h" #include "sysfs.h" -#include "debugfs.h" +#include #include "tests.h" #include diff --git a/tools/perf/util/debugfs.h b/tools/perf/util/debugfs.h deleted file mode 100644 index 68f3e87ec57..00000000000 --- a/tools/perf/util/debugfs.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef __DEBUGFS_H__ -#define __DEBUGFS_H__ - -const char *debugfs_find_mountpoint(void); -int debugfs_valid_mountpoint(const char *debugfs); -char *debugfs_mount(const char *mountpoint); -void debugfs_set_path(const char *mountpoint); - -extern char debugfs_mountpoint[]; -extern char tracing_events_path[]; - -#endif /* __DEBUGFS_H__ */ diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index bc4ad797743..7626bb49508 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -7,7 +7,7 @@ * Released under the GPL v2. (and only v2, not any later version) */ #include "util.h" -#include "debugfs.h" +#include #include #include "cpumap.h" #include "thread_map.h" diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 9c82f98f26d..dc16231f7a5 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -10,7 +10,7 @@ #include #include #include "asm/bug.h" -#include "debugfs.h" +#include #include "event-parse.h" #include "evsel.h" #include "evlist.h" diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index c84f48cf967..6c8bb0fb189 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -10,7 +10,7 @@ #include "symbol.h" #include "cache.h" #include "header.h" -#include "debugfs.h" +#include #include "parse-events-bison.h" #define YY_EXTRA_TYPE int #include "parse-events-flex.h" diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 49a256e6e0a..aa04bf9c9ad 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -40,7 +40,7 @@ #include "color.h" #include "symbol.h" #include "thread.h" -#include "debugfs.h" +#include #include "trace-event.h" /* For __maybe_unused */ #include "probe-event.h" #include "probe-finder.h" diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources index 64536a993f4..f75ae1b9900 100644 --- a/tools/perf/util/python-ext-sources +++ b/tools/perf/util/python-ext-sources @@ -15,7 +15,6 @@ util/thread_map.c util/util.c util/xyarray.c util/cgroup.c -util/debugfs.c util/rblist.c util/strlist.c util/sysfs.c diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py index 73d51026978..6b0ed322907 100644 --- a/tools/perf/util/setup.py +++ b/tools/perf/util/setup.py @@ -24,6 +24,7 @@ cflags += getenv('CFLAGS', '').split() build_lib = getenv('PYTHON_EXTBUILD_LIB') build_tmp = getenv('PYTHON_EXTBUILD_TMP') libtraceevent = getenv('LIBTRACEEVENT') +liblk = getenv('LIBLK') ext_sources = [f.strip() for f in file('util/python-ext-sources') if len(f.strip()) > 0 and f[0] != '#'] @@ -32,7 +33,7 @@ perf = Extension('perf', sources = ext_sources, include_dirs = ['util/include'], extra_compile_args = cflags, - extra_objects = [libtraceevent], + extra_objects = [libtraceevent, liblk], ) setup(name='perf', diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index a8d81c35ef6..36b9b49d017 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -38,7 +38,7 @@ #include "../perf.h" #include "trace-event.h" -#include "debugfs.h" +#include #include "evsel.h" #define VERSION "0.5" -- 2.20.1