mirror of
https://github.com/eunomia-bpf/bpf-developer-tutorial.git
synced 2026-02-08 12:53:33 +08:00
70451702f0
* Add combined on-CPU and off-CPU profiler script - Implemented a new profiling tool that captures both on-CPU and off-CPU activity for a specified process. - The script runs 'oncputime' and 'offcputime' tools simultaneously and combines their results into a unified flamegraph. - Added functionality to discover threads and profile them individually if the application is multi-threaded. - Included error handling for tool execution and output processing. - Created methods for generating flamegraph data and SVG visualizations. - Added command-line argument parsing for user-defined profiling parameters. - Implemented detailed analysis reports for both individual threads and overall profiling results. * feat: integrate blazesym v0.2.0 for improved symbol resolution and add test program for memory leak detection * docs: update README to enhance wall clock profiling tutorial with detailed explanations and examples * feat: add wallclock-profiler tests to CI workflow for tool validation * fix: rename combined_profiler.py to wallclock_profiler.py in test scripts and usage examples
148 lines
4.7 KiB
Makefile
148 lines
4.7 KiB
Makefile
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
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OUTPUT := .output
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CLANG ?= clang
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LIBBPF_SRC := $(abspath ../third_party/libbpf/src)
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BPFTOOL_SRC := $(abspath ../third_party/bpftool/src)
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LIBBPF_OBJ := $(abspath $(OUTPUT)/libbpf.a)
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BPFTOOL_OUTPUT ?= $(abspath $(OUTPUT)/bpftool)
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BPFTOOL ?= $(BPFTOOL_OUTPUT)/bootstrap/bpftool
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LIBBLAZESYM_SRC := $(abspath ../third_party/blazesym/)
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LIBBLAZESYM_OBJ := $(abspath $(OUTPUT)/libblazesym.a)
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LIBBLAZESYM_HEADER := $(abspath $(OUTPUT)/blazesym.h)
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ARCH ?= $(shell uname -m | sed 's/x86_64/x86/' \
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| sed 's/arm.*/arm/' \
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| sed 's/aarch64/arm64/' \
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| sed 's/ppc64le/powerpc/' \
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| sed 's/mips.*/mips/' \
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| sed 's/riscv64/riscv/' \
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| sed 's/loongarch64/loongarch/')
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VMLINUX := ../third_party/vmlinux/$(ARCH)/vmlinux.h
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# Use our own libbpf API headers and Linux UAPI headers distributed with
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# libbpf to avoid dependency on system-wide headers, which could be missing or
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# outdated
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INCLUDES := -I$(OUTPUT) -I../third_party/libbpf/include/uapi -I$(dir $(VMLINUX))
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CFLAGS := -g -Wall
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ALL_LDFLAGS := $(LDFLAGS) $(EXTRA_LDFLAGS)
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APPS = # minimal minimal_legacy bootstrap uprobe kprobe fentry usdt sockfilter tc ksyscall
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TEST_APPS = test_memleak
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CARGO ?= $(shell which cargo)
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ifeq ($(strip $(CARGO)),)
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BZS_APPS :=
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else
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BZS_APPS := memleak
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APPS += $(BZS_APPS)
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# Required by libblazesym
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ALL_LDFLAGS += -lrt -ldl -lpthread -lm
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endif
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# Get Clang's default includes on this system. We'll explicitly add these dirs
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# to the includes list when compiling with `-target bpf` because otherwise some
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# architecture-specific dirs will be "missing" on some architectures/distros -
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# headers such as asm/types.h, asm/byteorder.h, asm/socket.h, asm/sockios.h,
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# sys/cdefs.h etc. might be missing.
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#
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# Use '-idirafter': Don't interfere with include mechanics except where the
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# build would have failed anyways.
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CLANG_BPF_SYS_INCLUDES ?= $(shell $(CLANG) -v -E - </dev/null 2>&1 \
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| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
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ifeq ($(V),1)
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Q =
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msg =
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else
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Q = @
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msg = @printf ' %-8s %s%s\n' \
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"$(1)" \
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"$(patsubst $(abspath $(OUTPUT))/%,%,$(2))" \
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"$(if $(3), $(3))";
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MAKEFLAGS += --no-print-directory
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endif
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define allow-override
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$(if $(or $(findstring environment,$(origin $(1))),\
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$(findstring command line,$(origin $(1)))),,\
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$(eval $(1) = $(2)))
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endef
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$(call allow-override,CC,$(CROSS_COMPILE)cc)
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$(call allow-override,LD,$(CROSS_COMPILE)ld)
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.PHONY: all
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all: $(APPS) $(TEST_APPS)
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.PHONY: clean
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clean:
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$(call msg,CLEAN)
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$(Q)rm -rf $(OUTPUT) $(APPS) $(TEST_APPS)
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$(OUTPUT) $(OUTPUT)/libbpf $(BPFTOOL_OUTPUT):
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$(call msg,MKDIR,$@)
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$(Q)mkdir -p $@
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# Build libbpf
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$(LIBBPF_OBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)/libbpf
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$(call msg,LIB,$@)
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$(Q)$(MAKE) -C $(LIBBPF_SRC) BUILD_STATIC_ONLY=1 \
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OBJDIR=$(dir $@)/libbpf DESTDIR=$(dir $@) \
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INCLUDEDIR= LIBDIR= UAPIDIR= \
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install
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# Build bpftool
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$(BPFTOOL): | $(BPFTOOL_OUTPUT)
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$(call msg,BPFTOOL,$@)
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$(Q)$(MAKE) ARCH= CROSS_COMPILE= OUTPUT=$(BPFTOOL_OUTPUT)/ -C $(BPFTOOL_SRC) bootstrap
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$(LIBBLAZESYM_SRC)/target/release/libblazesym_c.a::
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$(Q)cd $(LIBBLAZESYM_SRC)/capi && $(CARGO) build --release
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$(LIBBLAZESYM_OBJ): $(LIBBLAZESYM_SRC)/target/release/libblazesym_c.a | $(OUTPUT)
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$(call msg,LIB, $@)
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$(Q)cp $(LIBBLAZESYM_SRC)/target/release/libblazesym_c.a $@
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$(LIBBLAZESYM_HEADER): $(LIBBLAZESYM_SRC)/target/release/libblazesym_c.a | $(OUTPUT)
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$(call msg,LIB,$@)
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$(Q)cp $(LIBBLAZESYM_SRC)/capi/include/blazesym.h $@
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# Build BPF code
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$(OUTPUT)/%.bpf.o: %.bpf.c $(LIBBPF_OBJ) $(wildcard %.h) $(VMLINUX) | $(OUTPUT) $(BPFTOOL)
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$(call msg,BPF,$@)
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$(Q)$(CLANG) -g -O2 -target bpf -D__TARGET_ARCH_$(ARCH) \
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$(INCLUDES) $(CLANG_BPF_SYS_INCLUDES) \
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-c $(filter %.c,$^) -o $(patsubst %.bpf.o,%.tmp.bpf.o,$@)
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$(Q)$(BPFTOOL) gen object $@ $(patsubst %.bpf.o,%.tmp.bpf.o,$@)
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# Generate BPF skeletons
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$(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o | $(OUTPUT) $(BPFTOOL)
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$(call msg,GEN-SKEL,$@)
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$(Q)$(BPFTOOL) gen skeleton $< > $@
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# Build user-space code
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$(patsubst %,$(OUTPUT)/%.o,$(APPS)): %.o: %.skel.h
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$(OUTPUT)/%.o: %.c $(wildcard %.h) | $(OUTPUT)
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$(call msg,CC,$@)
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$(Q)$(CC) $(CFLAGS) $(INCLUDES) -c $(filter %.c,$^) -o $@
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$(patsubst %,$(OUTPUT)/%.o,$(BZS_APPS)): $(LIBBLAZESYM_HEADER)
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$(BZS_APPS): $(LIBBLAZESYM_OBJ)
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# Build application binary
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$(APPS): %: $(OUTPUT)/%.o $(LIBBPF_OBJ) | $(OUTPUT)
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$(call msg,BINARY,$@)
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$(Q)$(CC) $(CFLAGS) $^ $(ALL_LDFLAGS) -lelf -lz -o $@
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# delete failed targets
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.DELETE_ON_ERROR:
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# Test program (no BPF, just plain C)
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test_memleak: test_memleak.c
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$(call msg,TEST,$@)
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$(Q)$(CC) $(CFLAGS) $< -o $@
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# keep intermediate (.skel.h, .bpf.o, etc) targets
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.SECONDARY:
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