math lib ok(?) but not linked to lib

This commit is contained in:
TuxMonkey
2025-11-16 20:55:29 +08:00
parent 053563e951
commit 66da7a1935
6 changed files with 249 additions and 255 deletions

View File

@@ -1,7 +1,7 @@
# 设置目标系统为通用系统(无操作系统)
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_NAME Generic)
# 设置目标处理器架构为ARM
set(CMAKE_SYSTEM_PROCESSOR arm)
set(CMAKE_SYSTEM_PROCESSOR arm)
# 以下三行被注释掉的设置用于强制指定编译器信息
#set(CMAKE_C_COMPILER_FORCED TRUE)
@@ -10,25 +10,25 @@ set(CMAKE_SYSTEM_PROCESSOR arm)
#set(CMAKE_CXX_COMPILER_ID GNU)
# 设置工具链前缀需要在系统PATH环境变量中包含arm-none-eabi-工具链)
set(TOOLCHAIN_PREFIX arm-none-eabi-)
set(TOOLCHAIN_PREFIX arm-none-eabi-)
# 设置C编译器为arm-none-eabi-gcc
set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}gcc)
set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}gcc)
# 设置汇编器使用C编译器gcc也可以处理汇编文件
set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})
set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})
# 设置C++编译器为arm-none-eabi-g++
set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++)
# 设置链接器为arm-none-eabi-g++使用C++编译器进行链接)
set(CMAKE_LINKER ${TOOLCHAIN_PREFIX}g++)
set(CMAKE_LINKER ${TOOLCHAIN_PREFIX}g++)
# 设置objcopy工具用于生成二进制文件等
set(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}objcopy)
set(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}objcopy)
# 设置size工具用于查看程序内存占用
set(CMAKE_SIZE ${TOOLCHAIN_PREFIX}size)
set(CMAKE_SIZE ${TOOLCHAIN_PREFIX}size)
# 设置各种源文件生成的可执行文件后缀为.elf
set(CMAKE_EXECUTABLE_SUFFIX_ASM ".elf")
set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
set(CMAKE_EXECUTABLE_SUFFIX_CXX ".elf")
set(CMAKE_EXECUTABLE_SUFFIX_ASM ".elf")
set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
set(CMAKE_EXECUTABLE_SUFFIX_CXX ".elf")
# 设置尝试编译的目标类型为静态库(用于工具链测试)
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
@@ -42,19 +42,19 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${TARGET_FLAGS}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wpedantic -fdata-sections -ffunction-sections")
# 根据构建类型设置不同的优化级别
if(CMAKE_BUILD_TYPE MATCHES "Debug")
if (CMAKE_BUILD_TYPE MATCHES "Debug")
set(CMAKE_C_FLAGS_DEBUG "-O0 -g") # 调试模式:无优化,包含调试信息
set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g")
elseif(CMAKE_BUILD_TYPE MATCHES "Release")
elseif (CMAKE_BUILD_TYPE MATCHES "Release")
set(CMAKE_C_FLAGS_RELEASE "-O3") # 发布模式:最高级别优化
set(CMAKE_CXX_FLAGS_RELEASE "-O3")
elseif(CMAKE_BUILD_TYPE MATCHES "RelWithDebInfo")
elseif (CMAKE_BUILD_TYPE MATCHES "RelWithDebInfo")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g") # 带调试信息的发布模式:中等优化,包含调试信息
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g")
elseif(CMAKE_BUILD_TYPE MATCHES "MinSizeRel")
elseif (CMAKE_BUILD_TYPE MATCHES "MinSizeRel")
set(CMAKE_C_FLAGS_MINSIZEREL "-Os") # 最小体积模式:优化代码大小
set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os")
endif()
endif ()
# 设置汇编器标志包含C标志并添加汇编特定选项
set(CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS} -x assembler-with-cpp -MMD -MP")
@@ -75,4 +75,6 @@ set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--start-group -lc -lm -Wl,--en
set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--print-memory-usage")
# 设置C++链接标志在C链接标志基础上添加C++标准库支持
set(CMAKE_CXX_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--start-group -lstdc++ -lsupc++ -Wl,--end-group")
set(CMAKE_CXX_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--start-group -lstdc++ -lsupc++ -Wl,--end-group")
set(TOOLCHAIN_LINK_LIBRARIES "m")

View File

@@ -103,4 +103,6 @@ set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--start-group -lc -lm -Wl,--en
set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--print-memory-usage")
# 设置C++链接标志在C链接标志基础上添加C++标准库支持
set(CMAKE_CXX_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--start-group -lstdc++ -lsupc++ -Wl,--end-group")
set(CMAKE_CXX_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -Wl,--start-group -lstdc++ -lsupc++ -Wl,--end-group")
set(TOOLCHAIN_LINK_LIBRARIES "m")