Question

我正在尝试使用我的一个源文件中的aarch64交叉编译器从x86计算机编译一个覆盆子pi 3的内核代码我需要stdint.h但是当我尝试编译它时失败说

>make
rm kernel8.elf *.o >/dev/null 2>/dev/null || true
rm -rf *.o *.img *.elf
aarch64-linux-gnu-gcc -Wall -c start.s -o start.o
aarch64-linux-gnu-gcc -Wall -c delays.c -o delays.o
In file included from gpio.h:4:0,
                 from delays.c:26:
/usr/lib/gcc/aarch64-linux-gnu/7/include/stdint.h:9:16: fatal error: stdint.h:     No such file or directory
 # include_next <stdint.h>
                ^~~~~~~~~~
compilation terminated.
make: *** [Makefile:15: delays.o] Error 1

我正在运行Fedors 26并使用

sudo dnf install *aarch64*

所以我有所有合适的包或应该有。

Answer 1

我建议在x86上使用最新的Linaro toolchain：我在过去使用主流Debian / Ubuntu提供的ARM交叉编译器时遇到了一些问题。

使用以下stdint.c示例：

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
int main(int argc, char** argv)
{
    printf("The size of an uint32_t is %d.\n", sizeof(uint32_t));
    return EXIT_SUCCESS;
}

mkdir -p /opt/linaro
wget https://releases.linaro.org/components/toolchain/binaries/latest/aarch64-linux-gnu/gcc-linaro-7.2.1-2017.11-i686_aarch64-linux-gnu.tar.xz
tar Jxvf gcc-linaro-7.2.1-2017.11-i686_aarch64-linux-gnu.tar.xz -C /opt/linaro
/opt/linaro/gcc-linaro-7.2.1-2017.11-i686_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc -o stdint stdint.c

编译应该成功，你应该得到一个有效的AARCH64可执行文件：

readelf -h stdint
ELF Header:
  Magic:   7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 
  Class:                             ELF64
  Data:                              2's complement, little endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - System V
  ABI Version:                       0
  Type:                              EXEC (Executable file)
  Machine:                           AArch64
  Version:                           0x1
  Entry point address:               0x4003f0
  Start of program headers:          64 (bytes into file)
  Start of section headers:          4872008 (bytes into file)
  Flags:                             0x0
  Size of this header:               64 (bytes)
  Size of program headers:           56 (bytes)
  Number of program headers:         6
  Size of section headers:           64 (bytes)
  Number of section headers:         37
  Section header string table index: 36

如果你有一台x86_64开发PC，那么使用Linaro工具链的x86_64 version当然会更好。

AARCH64 gcc #include <stdint.h>失败

1 个答案: