在makefile完成之前，GNU make会无错误地停止

Question

大家早上好!我正在尝试使用Eclipse与Windows 7下的GNU-Arm工具链交叉编译Atmel AT92SAM。

我的问题是，构建过程在链接器完成后停止，尽管它也应该创建一个原始二进制文件并打印大小。下面是eclipse创建的makefile的摘录:

# All Target
all: main.exe
# Tool invocations
main.exe: $(OBJS) $(USER_OBJS)
    @echo 'Building target: $@'
    @echo 'Invoking: Cross ARM C Linker'
    arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -Xlinker --gc-sections -Wl,-Map,"main.map" --entry=0x00000000 -o "main.exe" $(OBJS) $(USER_OBJS) $(LIBS)
    @echo 'Finished building target: $@'
    @echo ' '
main.bin: main.exe
    @echo 'Invoking: Cross ARM GNU Create Flash Image'
    arm-none-eabi-objcopy -O binary "main.exe"  "main.bin"
    @echo 'Finished building: $@'
    @echo ' '
main.siz: main.exe
    @echo 'Invoking: Cross ARM GNU Print Size'
    arm-none-eabi-size --format=berkeley "main.exe"
    @echo 'Finished building: $@'
    @echo ' '

但是最后两个命令没有执行，并且没有创建。bin。命令行输出为

...
Finished building: ../src/main.c
Building file: ../.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.c
Invoking: Cross ARM C Compiler
arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -DTRACE_LEVEL=4 -Dflash -Dat91sam7x512  -I"[My includes] -std=gnu99 -MMD -MP -MF".metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.d" -MT".metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.o" -c -o ".metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.o" "../.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.c"
Finished building: ../.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.c
Building file: ../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c
Invoking: Cross ARM C Compiler
arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -DTRACE_LEVEL=4 -Dflash -Dat91sam7x512 -I"[my includes]" -std=gnu99 -MMD -MP -MF".metadata/.plugins/org.eclipse.cdt.make.core/specs.d" -MT".metadata/.plugins/org.eclipse.cdt.make.core/specs.o" -c -o ".metadata/.plugins/org.eclipse.cdt.make.core/specs.o" "../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c"
Finished building: ../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c
Building target: main.exe
Invoking: Cross ARM C Linker
arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -Xlinker --gc-sections -Wl,-Map,"main.map" --entry=0x00000000 -o "main.exe"  [my object files]  ./.metadata/.plugins/org.eclipse.cdt.managedbuilder.core/spec.o  ./.metadata/.plugins/org.eclipse.cdt.make.core/specs.o   -lm
Finished building target: main.exe

08:31:22 Build Finished (took 10s.91ms)

如您所见，没有调用objcopy和size命令。什么好主意吗?

Answer 1

您可以直接在main.exe配方中添加大小，因为main.siz不是真正的输出文件(应该是.PHONY):

all: main.bin
main.exe: $(OBJS) $(USER_OBJS)
    @echo 'Building target: $@'
    @echo 'Invoking: Cross ARM C Linker'
    arm-none-eabi-gcc -mcpu=arm7tdmi -mthumb -O0 -fsigned-char -ffunction-sections  -g -Xlinker --gc-sections -Wl,-Map,"main.map" --entry=0x00000000 -o "$@" $(OBJS) $(USER_OBJS) $(LIBS)
    arm-none-eabi-size --format=berkeley "$@"
    @echo 'Finished building target: $@'
main.bin: main.exe
    @echo 'Invoking: Cross ARM GNU Create Flash Image'
    arm-none-eabi-objcopy -O binary "$<" "$@"
    @echo 'Finished building: $@'