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4b15354201
linux/tools/lib/perf/Makefile
Ian Rogers da885a0e5e perf cpumap: Add reference count checking 
Enabled when REFCNT_CHECKING is defined. The change adds a memory
allocated pointer that is interposed between the reference counted cpu
map at a get and freed by a put. The pointer replaces the original
perf_cpu_map struct, so use of the perf_cpu_map via APIs remains
unchanged. Any use of the cpu map without the API requires two versions,
handled via the RC_CHK_ACCESS macro.

This change is intended to catch:

 - use after put: using a cpumap after you have put it will cause a
   segv.
 - unbalanced puts: two puts for a get will result in a double free
   that can be captured and reported by tools like address sanitizer,
   including with the associated stack traces of allocation and frees.
 - missing puts: if a put is missing then the get turns into a memory
   leak that can be reported by leak sanitizer, including the stack
   trace at the point the get occurs.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Miaoqian Lin <linmq006@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>,
Cc: Yury Norov <yury.norov@gmail.com>
Link: https://lore.kernel.org/lkml/20230407230405.2931830-3-irogers@google.com
[ Extracted from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-17 16:50:02 -03:00

221 lines
5.6 KiB
Makefile
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# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
# Most of this file is copied from tools/lib/bpf/Makefile
LIBPERF_VERSION = 0
LIBPERF_PATCHLEVEL = 0
LIBPERF_EXTRAVERSION = 1
MAKEFLAGS += --no-print-directory
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif
INSTALL = install
# Use DESTDIR for installing into a different root directory.
# This is useful for building a package. The program will be
# installed in this directory as if it was the root directory.
# Then the build tool can move it later.
DESTDIR ?=
DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
include $(srctree)/tools/scripts/Makefile.include
include $(srctree)/tools/scripts/Makefile.arch
ifeq ($(LP64), 1)
libdir_relative = lib64
else
libdir_relative = lib
endif
prefix ?=
libdir = $(prefix)/$(libdir_relative)
# Shell quotes
libdir_SQ = $(subst ','\'',$(libdir))
libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
ifeq ("$(origin V)", "command line")
VERBOSE = $(V)
endif
ifndef VERBOSE
VERBOSE = 0
endif
ifeq ($(VERBOSE),1)
Q =
else
Q = @
endif
TEST_ARGS := $(if $(V),-v)
# Set compile option CFLAGS
ifdef EXTRA_CFLAGS
CFLAGS := $(EXTRA_CFLAGS)
else
CFLAGS := -g -Wall
endif
INCLUDES = \
-I$(srctree)/tools/lib/perf/include \
-I$(srctree)/tools/lib/ \
-I$(srctree)/tools/include \
-I$(srctree)/tools/arch/$(SRCARCH)/include/ \
-I$(srctree)/tools/arch/$(SRCARCH)/include/uapi \
-I$(srctree)/tools/include/uapi
# Append required CFLAGS
override CFLAGS += $(EXTRA_WARNINGS)
override CFLAGS += -Werror -Wall
override CFLAGS += -fPIC
override CFLAGS += $(INCLUDES)
override CFLAGS += -fvisibility=hidden
all:
export srctree OUTPUT CC LD CFLAGS V
export DESTDIR DESTDIR_SQ
include $(srctree)/tools/build/Makefile.include
VERSION_SCRIPT := libperf.map
PATCHLEVEL = $(LIBPERF_PATCHLEVEL)
EXTRAVERSION = $(LIBPERF_EXTRAVERSION)
VERSION = $(LIBPERF_VERSION).$(LIBPERF_PATCHLEVEL).$(LIBPERF_EXTRAVERSION)
LIBPERF_SO := $(OUTPUT)libperf.so.$(VERSION)
LIBPERF_A := $(OUTPUT)libperf.a
LIBPERF_IN := $(OUTPUT)libperf-in.o
LIBPERF_PC := $(OUTPUT)libperf.pc
LIBPERF_ALL := $(LIBPERF_A) $(OUTPUT)libperf.so*
LIB_DIR := $(srctree)/tools/lib/api/
ifneq ($(OUTPUT),)
ifneq ($(subdir),)
API_PATH=$(OUTPUT)/../lib/api/
else
API_PATH=$(OUTPUT)
endif
else
API_PATH=$(LIB_DIR)
endif
LIBAPI = $(API_PATH)libapi.a
export LIBAPI
$(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
$(LIBPERF_IN): FORCE
$(Q)$(MAKE) $(build)=libperf
$(LIBPERF_A): $(LIBPERF_IN)
$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIBPERF_IN)
$(LIBPERF_SO): $(LIBPERF_IN) $(LIBAPI)
$(QUIET_LINK)$(CC) --shared -Wl,-soname,libperf.so \
-Wl,--version-script=$(VERSION_SCRIPT) $^ -o $@
@ln -sf $(@F) $(OUTPUT)libperf.so
@ln -sf $(@F) $(OUTPUT)libperf.so.$(LIBPERF_VERSION)
libs: $(LIBPERF_A) $(LIBPERF_SO) $(LIBPERF_PC)
all: fixdep
$(Q)$(MAKE) libs
clean: $(LIBAPI)-clean
$(call QUIET_CLEAN, libperf) $(RM) $(LIBPERF_A) \
*.o *~ *.a *.so *.so.$(VERSION) *.so.$(LIBPERF_VERSION) .*.d .*.cmd tests/*.o LIBPERF-CFLAGS $(LIBPERF_PC) \
$(TESTS_STATIC) $(TESTS_SHARED)
TESTS_IN = tests-in.o
TESTS_STATIC = $(OUTPUT)tests-static
TESTS_SHARED = $(OUTPUT)tests-shared
$(TESTS_IN): FORCE
$(Q)$(MAKE) $(build)=tests
$(TESTS_STATIC): $(TESTS_IN) $(LIBPERF_A) $(LIBAPI)
$(QUIET_LINK)$(CC) -o $@ $^
$(TESTS_SHARED): $(TESTS_IN) $(LIBAPI)
$(QUIET_LINK)$(CC) -o $@ -L$(or $(OUTPUT),.) $^ -lperf
make-tests: libs $(TESTS_SHARED) $(TESTS_STATIC)
tests: make-tests
@echo "running static:"
@./$(TESTS_STATIC) $(TEST_ARGS)
@echo "running dynamic:"
@LD_LIBRARY_PATH=. ./$(TESTS_SHARED) $(TEST_ARGS)
$(LIBPERF_PC):
$(QUIET_GEN)sed -e "s|@PREFIX@|$(prefix)|" \
-e "s|@LIBDIR@|$(libdir_SQ)|" \
-e "s|@VERSION@|$(VERSION)|" \
< libperf.pc.template > $@
define do_install_mkdir
if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
fi
endef
define do_install
if [ ! -d '$2' ]; then \
$(INSTALL) -d -m 755 '$2'; \
fi; \
$(INSTALL) $1 $(if $3,-m $3,) '$2'
endef
install_lib: libs
$(call QUIET_INSTALL, $(LIBPERF_ALL)) \
$(call do_install_mkdir,$(libdir_SQ)); \
cp -fpR $(LIBPERF_ALL) $(DESTDIR)$(libdir_SQ)
HDRS := bpf_perf.h core.h cpumap.h threadmap.h evlist.h evsel.h event.h mmap.h
INTERNAL_HDRS := cpumap.h evlist.h evsel.h lib.h mmap.h rc_check.h threadmap.h xyarray.h
INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/perf
INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS))
INSTALL_INTERNAL_HDRS_PFX := $(DESTDIR)$(prefix)/include/internal
INSTALL_INTERNAL_HDRS := $(addprefix $(INSTALL_INTERNAL_HDRS_PFX)/, $(INTERNAL_HDRS))
$(INSTALL_HDRS): $(INSTALL_HDRS_PFX)/%.h: include/perf/%.h
$(call QUIET_INSTALL, $@) \
$(call do_install,$<,$(INSTALL_HDRS_PFX)/,644)
$(INSTALL_INTERNAL_HDRS): $(INSTALL_INTERNAL_HDRS_PFX)/%.h: include/internal/%.h
$(call QUIET_INSTALL, $@) \
$(call do_install,$<,$(INSTALL_INTERNAL_HDRS_PFX)/,644)
install_headers: $(INSTALL_HDRS) $(INSTALL_INTERNAL_HDRS)
$(call QUIET_INSTALL, libperf_headers)
install_pkgconfig: $(LIBPERF_PC)
$(call QUIET_INSTALL, $(LIBPERF_PC)) \
$(call do_install,$(LIBPERF_PC),$(DESTDIR_SQ)$(libdir_SQ)/pkgconfig,644)
install_doc:
$(Q)$(MAKE) -C Documentation install-man install-html install-examples
install: install_lib install_headers install_pkgconfig install_doc
FORCE:
.PHONY: all install clean tests FORCE
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