使用 custom_target 创建的 cmake 目标失败

Posted 2023-02-16

【中文标题】使用 custom_target 创建的 cmake 目标失败

【英文标题】：cmake target created with custom_target fails

【发布时间】：2018-03-11 14:02:49

【问题描述】：

我正在尝试将自定义目标添加到我的 Cmake 项目中，它将从 .elf 输出 .hex 文件。这是我使用的一段脚本：

....
set(EXECUTABLE_OUTPUT_PATH "$PROJECT_SOURCE_DIR/$CMAKE_BUILD_TYPE")
....
target_link_libraries($CMAKE_PROJECT_NAME.elf)
set(COMD "$CMAKE_OBJCOPY -Oihex $EXECUTABLE_OUTPUT_PATH/$CMAKE_PROJECT_NAME.elf $EXECUTABLE_OUTPUT_PATH/$CMAKE_PROJECT_NAME.hex")
add_custom_target($CMAKE_PROJECT_NAME.hex DEPENDS $CMAKE_PROJECT_NAME.elf COMMAND $COMD)

建筑最终是这样的：

-- Configuring done
-- Generating done
-- Build files have been written to: /home/captain/test
[100%] Built target test.elf
/bin/sh: 1: arm-none-eabi-objcopy -Oihex /home/captain/test/Release/test.elf /home/captain/test/Release/test.hex: not found
.... blah blah blah ...

直接运行：

arm-none-eabi-objcopy -Oihex /home/captain/test/Release/test.elf /home/captain/test/Release/test.hex

按预期工作。怎么可能？

【参考方案1】：

问题是你把命令包装在":

set(COMD "$CMAKE_OBJCOPY -Oihex $EXECUTABLE_OUTPUT_PATH/$CMAKE_PROJECT_NAME.elf $EXECUTABLE_OUTPUT_PATH/$CMAKE_PROJECT_NAME.hex")

删除周围的"，它应该可以按预期工作：

set(COMD $CMAKE_OBJCOPY -Oihex $EXECUTABLE_OUTPUT_PATH/$CMAKE_PROJECT_NAME.elf $EXECUTABLE_OUTPUT_PATH/$CMAKE_PROJECT_NAME.hex)