我对CMake还是陌生的，并试图学习它。我正在尝试使用CMake从IDE编译示例项目。当我尝试链接某些供应商提供的静态库时，会出现问题。
该项目基本上是：
IfCMakeLists.txt
PROJECT_DIR
source
main.c
include
main.h
device
familyfolder
morefolders
emlib
src
somesource.c
em_core.c
...
inc
someheader.h
em_core.h
...
protocol
bluetooth/lib
EFR32BG1P
libbluetooth.a
librail.a
libnvm3.a
...
bluetooth/ble_stack
src
host
gecko_bglib.c
soc
...
inc
soc
native_gecko.h
someheader1.h
someheader2.h
...
host
someheader3.h
common
bg_types.h (which is included by native_gecko.h)
someheader4.h
CMakeLists.txt
# Base EFM32 CMake file
#
# This can be used as is as a project base, or by adding the efm32-base
# repository as a submodule to another project, copying this CMakeLists file
# to the top level directory, and updating the BASE_LOCATION variable to reflect this
# change
#
## Copyright (c) 2016 Ryan Kurte
# This file is covered under the MIT license available at: https://opensource.org/licenses/MIT
###### Project Environment #####
# Set minimum CMake version
cmake_minimum_required(VERSION 2.8.4)
# Optional verbose mode, uncomment or pass in -DCMAKE_VERBOSE_MAKEFILE=ON
# set(CMAKE_VERBOSE_MAKEFILE ON)
set(BASE_LOCATION .)
# Set the compiler (must be prior to project setup)
include(${BASE_LOCATION}/toolchain/arm-gcc.cmake)
##### Project Setup #####
# Configure project and languages
project(efm32-test C CXX ASM)
# ${DEVICE} sets the target specific model name
if (NOT DEVICE)
set(DEVICE EFR32BG1P232F256GM48)
# set(DEVICE BGM13P22F512GA)
set(BOARD BRD4100A)
# set(BLE_LIB EFR32BG13P)
endif ()
# ${JLINK_DEVICE} device model setting specifically for JLink. (Defaults to ${DEVICE} when not set)
# set(JLINK_DEVICE EFM32TG11BXXXF128)
# When ${JLINK_SERVER_IP} is set, JLink will try to connect over IP to a JLink server
# set(JLINK_SERVER_IP 127.0.0.1)
# Set build
if (NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE DEBUG)
endif ()
##### Modules #####
# Libraries can be added to the LIBS variable
# or manually included here.
# Add base libs (emlib, CMSIS, device files)
include(${BASE_LOCATION}/toolchain/efm32-base.cmake)
add_subdirectory(${BASE_LOCATION}/cmsis)
add_subdirectory(${BASE_LOCATION}/emlib)
add_subdirectory(${BASE_LOCATION}/emdrv)
add_subdirectory(${BASE_LOCATION}/device)
add_subdirectory(${BASE_LOCATION}/protocol)
add_subdirectory(${BASE_LOCATION}/hardware)
add_subdirectory(${BASE_LOCATION}/radio)
# This is normally set in efm32-base.cmake, but libraries may modify it so set
# it after libraries/subdirectories have been added
set(CMAKE_EXE_LINKER_FLAGS "${COMMON_DEFINITIONS} -Xlinker -T${LINKER_SCRIPT} -Wl,-Map=${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}.map -Wl,--gc-sections -Wl,-v")
##### Files #####
# Add project headers
include_directories(${BASE_LOCATION}/include)
# Generate executable and link
add_executable(${PROJECT_NAME}
source/main.c
source/init_mcu.c
source/init_board.c
source/init_app.c
source/gatt_db.c
source/pti.c
source/app.c
source/application_properties.c)
efm32_configure_linker_addresses(${PROJECT_NAME})
target_link_libraries(${PROJECT_NAME} ${LIBS} emlib emdrv cmsis device radio)
# Link optional libraries if available
if (${HAS_HARDWARE})
target_link_libraries(${PROJECT_NAME} hardware)
endif ()
if (${HAS_PROTOCOL})
target_link_libraries(${PROJECT_NAME} protocol)
endif ()
##### Post build #####
# Add post build commands
include(${BASE_LOCATION}/toolchain/post-build.cmake)
# Add JLink commands
include(${BASE_LOCATION}/toolchain/jlink.cmake)
##### CMake debug prints #####
if (CMAKE_VERBOSE_MAKEFILE)
print_debug_info()
endif()
CMakeList.txt
# EFM32 Emlib CMake file
project(emlib)
# find . -name '*.c' | sort -u
add_library(${PROJECT_NAME}
src/em_core.c
src/alot_other_files.c)
target_include_directories(${PROJECT_NAME} PUBLIC inc)
target_link_libraries(${PROJECT_NAME} device protocol)
从main.c开始-包括其中的native_gecko.h是主要内容。
project(protocol)
string(TOLOWER ${DEVICE} DEVICE_L)
set(BLE_LINKER_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/ble_stack/linker/GCC/${DEVICE_L}.ld")
if (NOT EXISTS ${BLE_LINKER_SCRIPT})
message("No bluetooth specific linker script defined, skipping protocol")
set(HAS_PROTOCOL FALSE PARENT_SCOPE)
return()
endif ()
set(HAS_PROTOCOL TRUE PARENT_SCOPE)
message("Found bluetooth specific linker script, using this instead:\n before: ${LINKER_SCRIPT}\n after: ${BLE_LINKER_SCRIPT}")
set(LINKER_SCRIPT ${BLE_LINKER_SCRIPT} PARENT_SCOPE)
add_library(${PROJECT_NAME}
bluetooth/ble_stack/src/host/gecko_bglib.c)
# bluetooth/ble_stack/src/soc/rtos_bluetooth.c)
target_include_directories(${PROJECT_NAME} PUBLIC
bluetooth/ble_stack/inc/soc
bluetooth/ble_stack/inc/host
bluetooth/ble_stack/inc/common)
target_link_libraries(${PROJECT_NAME} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/lib/EFR32BG1P/GCC/libmbedtls.a
${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/lib/EFR32BG1P/GCC/libcoex.a
${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/lib/EFR32BG1P/GCC/libpsstore.a
emlib)
target_link_libraries(${PROJECT_NAME} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/lib/EFR32BG1P/GCC/libbluetooth.a
emlib)
target_link_libraries(${PROJECT_NAME} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/lib/EFR32BG1P/GCC/librail.a
emlib)
target_link_libraries(${PROJECT_NAME} PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/lib/EFR32BG1P/GCC/libnvm3.a
emlib)
当我尝试包括静态库并将其链接到emlib的依赖项
/* Board headers */
#include "init_mcu.h"
#include "init_board.h"
#include "init_app.h"
#include "ble-configuration.h"
#include "board_features.h"
/* Bluetooth stack headers */
#include "bg_types.h"
#include "native_gecko.h"
#include "gatt_db.h"
/* Libraries containing default Gecko configuration values */
#include "em_emu.h"
#include "em_cmu.h"
在协议文件夹的CMakeLists.txt文件中，即时获取
target_link_libraries(protocol PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/bluetooth/lib/EFR32BG1P/GCC/librail.a
emlib)
应该在libs文件夹中，并且也要事先进行编译。
按要求，或多或少是完整的错误部分。目前主要是静态库依赖错误的重复。
undefined reference to some function