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MagicEye：更改cmake文件，对controller进行编译 #930

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Oct 23, 2024
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MagicEye：更改cmake文件，对controller进行编译 #930

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38 changes: 25 additions & 13 deletions MagicEyes/src/backend/process/cpu_watcher/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -10,47 +10,59 @@
# \brief
# cpu_watcher 工具 CMakeLists 文件
# -----------------------------------------------------------------------------------------

# 1. 工具名为 cpuwatcher 在process目录下
set(TOOL_NAME cpu_watcher)
set(CONTROLLER_NAME controller)
set(TOOL_BELONG_TO_MODULE process)

include_directories(${LIBBPF_INCLUDE_DIRS})
# 2. 查找bpf.c文件并保存在apps列表中
file(GLOB apps ${CMAKE_CURRENT_SOURCE_DIR}/bpf/*.bpf.c)
# 若不用Rust，则排除 profile.bpf.c

# 3.若不用Rust，则排除 profile.bpf.c
if(NOT CARGO_EXISTS)
list(REMOVE_ITEM apps ${CMAKE_CURRENT_SOURCE_DIR}/bpf/profile.bpf.c)
endif()

# 设置并创建 <>/src-gen/TOOL_BELONG_TO_MODULE/TOOL_NAME 文件夹
# 4.设置并创建 <>/src-gen/TOOL_BELONG_TO_MODULE/TOOL_NAME 文件夹
set(SRC_GEN_TARGET_DIR ${CONFIG_SRC_GEN_DIR}/${TOOL_BELONG_TO_MODULE}/${TOOL_NAME})
if (NOT EXISTS ${SRC_GEN_TARGET_DIR})
file(MAKE_DIRECTORY ${SRC_GEN_TARGET_DIR})
message(STATUS "directory create success")
endif ()

# 遍历文件夹内所有的bpf.c
# 5.遍历文件夹内所有的bpf.c
foreach(app ${apps})
get_filename_component(app_stem ${app} NAME_WE)
get_filename_component(app_stem ${app} NAME_WE)# 获取子工具文件的名字，并保存在app_stem中
# Build object skeleton and depend skeleton on libbpf build
bpf_object(${app_stem} ${app_stem}.bpf.c ${SRC_GEN_TARGET_DIR})
add_dependencies(${app_stem}_skel libbpf-build bpftool-build)
bpf_object(${app_stem} ${app_stem}.bpf.c ${SRC_GEN_TARGET_DIR})# 生成骨架文件并放在SRC_GEN_TARGET_DIR目录
add_dependencies(${app_stem}_skel libbpf-build bpftool-build)# 每个生成的骨架文件都依赖于 libbpf 和 bpftool，这两个工具是 eBPF 开发的基础
endforeach()

# 6.创建可执行文件 cpuwatcher & controller
add_executable(${TOOL_NAME} src/${TOOL_NAME}.c)
add_executable(${CONTROLLER_NAME} src/${CONTROLLER_NAME}.c)
# 7.链接骨架文件到cpuwatcher
foreach (app ${apps})
get_filename_component(app_stem ${app} NAME_WE)
target_link_libraries(${TOOL_NAME} ${app_stem}_skel)

target_link_libraries(${TOOL_NAME} ${app_stem}_skel)# 将子工具生成的骨架文件链接到cpuwatcher中
# 对于rust情况
if(${app_stem} STREQUAL "profile")
target_include_directories(${app_stem} PRIVATE
${CMAKE_SOURCE_DIR}/blazesym/include)
target_link_libraries(${app_stem}
${CMAKE_SOURCE_DIR}/blazesym/target/release/libblazesym.a -lpthread -lrt -ldl)
endif()
endforeach ()
# 8.controller链接到libbpf库
target_link_libraries(${CONTROLLER_NAME} PRIVATE ${LIBBPF_LIBRARIES} pthread rt dl)
target_link_libraries(${CONTROLLER_NAME} PRIVATE elf z)

# 将可执行文件，配置文件等安装在对应的位置
# 设置安装目录
# 9.将可执行文件，配置文件等安装在对应的位置
# 9.1设置安装目录
set(CPU_WATCHER_INSTALL_DIR backend/${TOOL_BELONG_TO_MODULE}/${TOOL_NAME})
# 安装可执行文件到 ${CPU_WATCHER_INSTALL_DIR}/bin
# 9.2安装可执行文件到 ${CPU_WATCHER_INSTALL_DIR}/bin
install(TARGETS ${TOOL_NAME}
RUNTIME DESTINATION ${CPU_WATCHER_INSTALL_DIR}/bin)
install(TARGETS ${CONTROLLER_NAME}
RUNTIME DESTINATION ${CPU_WATCHER_INSTALL_DIR}/bin)
# 安装配置文件到 ${CPU_WATCHER_INSTALL_DIR}/etc
2 changes: 1 addition & 1 deletion MagicEyes/src/backend/process/cpu_watcher/src/controller.c
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Expand Up @@ -24,7 +24,7 @@
#include <signal.h>
#include <bpf/libbpf.h>
#include <bpf/bpf.h>
#include "cpu_watcher_helper.h"
#include "../include/cpu_watcher_helper.h"

static struct env {
// 1代表activate；2代表unactivate；3代表finish
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