我正在尝试将Makefile移至cmake。问题是,当涉及到链接阶段时,它找不到共享库。
我的cmake是:
set(PROJECT_LINK_LIBS libsr_tps.so)
link_directories(absolute/path/to/the/library)
我也尝试过:
find_library(PROJECT_LINK_LIBS NAMES sr_tps PATHS "${PROJECT_SOURCE_DIR}/lib")
然后:
add_executable(project ${SOURCE})
target_link_libraries(project ${PROJECT_LINK_LIBS})
可以成功交叉编译源。但是在编译后,它始终显示:
/absolute/path/to/ld: cannot find -lsr_tps
collect2: ld returned 1 exit status
鉴于libsr_tps.so已经预先交叉编译。
Makefile在编译和生成最终可执行文件时都可以正常工作。
许多小时以来,我一直在寻找潜在的问题。解决方案只是行不通。
可能是什么问题?
谢谢。
更新:
make的构建方式:
export
。 Makefile:
LDFLAGS += -L./lib
CFLAGS += -Wall -Wno-pointer-sign
LDLIBS = -lsr_tps
all: $(TARGET)
$(TARGET): $(OBJS) $(OBJS_ROS)
$(CC) $(LDFLAGS) $(OBJS) $(OBJS_ROS) $(LDLIBS) -o $(TARGET)
cp $^ ./$(BINARY)/$(OBJ_DIR)
mv $@ ./$(BINARY)
.c.o: $(CC) $(CFLAGS) -o $@ -c $<
更新2:
这是我的Makefile:
TARGET = ros
LDFLAGS += -L./lib
CFLAGS += -Wall -Wno-pointer-sign -DWSU_5001 -I./include -I./include/WSU-5001_include -I./include/J2735 -I./ -pthread -O
LDLIBS = -lsr_tps -lrisapi -lrt -lipc -lm -ldot2 -ldot3 -lcrypto -lgps -ltpsapi
SHARED_FLAGS = -fPIC -shared
BINARY= bin
SRC_DIR = ./src
J2735_DIR = ./src/J2735
#OBJ_DIR = ./binary/obj
OBJ_DIR = obj
OBJS_TEST=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
OBJS=${ASN_MODULE_SOURCES:.c=.o}
OBJS_ROS = ros.o tx.o rx.o util.o config.o
all: $(TARGET)
mkdir -p $(BINARY)
mkdir -p $(BINARY)/$(OBJ_DIR)
$(TARGET): $(OBJS) $(OBJS_ROS)
$(CC) $(LDFLAGS) $(OBJS) $(OBJS_ROS) $(LDLIBS) -o $(TARGET)
cp $^ ./$(BINARY)/$(OBJ_DIR)
mv $@ ./$(BINARY)
# $(TARGET): $(OBJS)
# $(CC) $(OBJS) $(CFLAGS) -o $@
.SUFFIXES:
.SUFFIXES: .c .o
.c.o:
$(CC) $(CFLAGS) -o $@ -c $<
执行make后的命令行:
path/to/powerpc-e300c3-linux-gnu-gcc -L./lib <all .o files> -lsr_tps -lrisapi -lrt -lipc -lm -ldot2 -ldot3 -lcrypto -lgps -ltpsapi -o ros
下面是我的CMakeList:
cmake_minimum_required(VERSION 3.5.1)
project(Denso-ROS)
set(CMAKE_SYSTEM_NAME Denso-linux)
set(CMAKE_SYSTEM_PROCESSOR "^(powerpc|ppc)")
set(GCC_COVERAGE_COMPILE_FLAGS "-static -Wall -Wno-pointer-sign -DWSU_5001 -pthread -O")
#################
#problem
#set(GCC_COVERAGE_LINK_FLAGS "libsr_tps.so -lrisapi -lrt -lipc -lm -ldot2 -ldot3 -lcrypto -lgps -ltpsapi")
#set(GCC_COVERAGE_LINK_FLAGS "-L./lib")
#set(CMAKE_LINK_LIBRARY_FLAG "-lsr_tps -lrisapi -lrt -lipc -lm -ldot2 -ldot3 -lcrypto -lgps -ltpsapi")
#set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GCC_COVERAGE_LINK_FLAGS}" )
set(PROJECT_LINK_LIBS libsr_tps.so)
link_directories(home/yufeiyan/DENSO-WSU5K1-SDK_VM_Ubuntu_Peloton/Denso/lib)
#################
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}" )
set(tools ${PROJECT_SOURCE_DIR}/toolchain/bin)
set(CMAKE_C_COMPILER ${tools}/powerpc-e300c3-linux-gnu-gcc)
set(CMAKE_CXX_COMPILER ${tools}/powerpc-e300c3-linux-gnu-g++)
find_library(DENSO_LIB NAMES sr_tps PATHS "${PROJECT_SOURCE_DIR}/lib")
message(STATUS "${DENSO_LIB}")
include_directories(
${PROJECT_SOURCE_DIR}
include
include/J2735
include/WSU-5001_include)
file(GLOB SOURCE ${PROJECT_SOURCE_DIR}/*.c src/*.c src/J2735/*.c)
list(REMOVE_ITEM SOURCE ${PROJECT_SOURCE_DIR}/src/J2735/converter-example.c)
list(REMOVE_ITEM SOURCE ${PROJECT_SOURCE_DIR}/src/J2735/test.c)
#add_executable(ros ${SOURCE1} ${SOURCE2} ${SOURCE3})
add_executable(ros ${SOURCE})
target_link_libraries(ros ${PROJECT_LINK_LIBS})
执行make后的命令行:
path/to/powerpc-e300c3-linux-gnu-gcc -static -Wall -Wno-pointer-sign -DWSU_5001 -pthread -O <all .o files> -L/path/to/project/lib -lsr_tps -Wl,-rpath, path/to/project/lib path/tp/powerpc-e300c3-linux-gnu/bin/ld: cannot find -lsr_tps
答案 0 :(得分:0)
非常感谢 Tsyvarev 。
让我总结一下问题和解决方案:
链接器由于路径错误而找不到该库。我使用了link_directories(absolute/path/to/lib)
,它返回了一条重复的路径。相反,使用link_directories(${PROJECT_SOURCE_DIR}/lib)
解决了这个问题。链接器具有正确的路径并找到库。
与此同时,我删除了-static
的{{1}}选项。此选项还可能导致链接程序找不到库。