gcc - 致命错误: gnu/stubs-soft. h:无此类文件或目录

在针对32位Cortex A9平台的64位Ubuntu 16.04上交叉编译helloworld程序时，出现以下错误。

$ make
/usr/local/comp/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc -march=armv7-a -mthumb-interwork -mtune=cortex-a9 --sysroot=/usr/local/comp/poky/1.7/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi -Iinclude -Wall -O3 -c -o main.o main.c
In file included from /usr/local/comp/poky/1.7/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi/usr/include/features.h:389:0,
             from /usr/local/comp/poky/1.7/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi/usr/include/stdio.h:27,
             from main.c:5:
/usr/local/comp/poky/1.7/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi/usr/include/gnu/stubs.h:7:29: fatal error: gnu/stubs-soft.h: No such file or directory
# include <gnu/stubs-soft.h>
                         ^
compilation terminated.
makefile:45: recipe for target 'main.o' failed
make: *** [main.o] Error 1

然后，我检查stubs.h文件的内容:

$ cat /usr/local/comp/poky/1.7/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi/usr/include/gnu/stubs.h
/* This file is automatically generated.
   This file selects the right generated file of `__stub_FUNCTION' macros
   based on the architecture being compiled for.  */


#if !defined __ARM_PCS_VFP
# include <gnu/stubs-soft.h>
#endif
#if defined __ARM_PCS_VFP
# include <gnu/stubs-hard.h>
#endif

我应该在makefile中定义_ARM_PCS_VFP吗？

最佳答案

以您的交叉编译器的名称“cortexa9hf-vfp-neon-poky-linux-gnueabi”为目标，它针对具有VFP架构和启用neon的Cortex-A9。添加-mfloat-abi=hard开关应该可以解决该问题。