深入理解linux执行文件提示No such file or directory的背后原因

　　root@tegra-ubuntu:~# readelf -h a.out

　　ELF Header:

　　Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00

　　Class: ELF32

　　Data: 2's complement, little endian

　　Version: 1 (current)

　　OS/ABI: UNIX - System V

　　ABI Version: 0

　　Type: EXEC (Executable file)

　　Machine: ARM

　　Version: 0x1

　　Entry point address: 0x8315

　　Start of program headers: 52 (bytes into file)

　　Start of section headers: 4500 (bytes into file)

　　Flags: 0x5000402, has entry point, Version5 EABI, hard-float ABI

　　Size of this header: 52 (bytes)

　　Size of program headers: 32 (bytes)

　　Number of program headers: 9

　　Size of section headers: 40 (bytes)

　　Number of section headers: 30

　　Section header string table index: 27

　　root@tegra-ubuntu:~# readelf -h b.out

　　ELF Header:

　　Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00

　　Class: ELF32

　　Data: 2's complement, little endian

　　Version: 1 (current)

　　OS/ABI: UNIX - System V

　　ABI Version: 0

　　Type: EXEC (Executable file)

　　Machine: ARM

　　Version: 0x1

　　Entry point address: 0x86bc

　　Start of program headers: 52 (bytes into file)

　　Start of section headers: 4136 (bytes into file)

　　Flags: 0x5000202, has entry point, Version5 EABI, soft-float ABI

　　Size of this header: 52 (bytes)

　　Size of program headers: 32 (bytes)

　　Number of program headers: 8

　　Size of section headers: 40 (bytes)

　　Number of section headers: 31

　　Section header string table index: 28

　　root@tegra-ubuntu:~# readelf -l helloworld | grep interpreter

　　readelf: Error: 'helloworld': No such file

　　root@tegra-ubuntu:~# readelf -l a.out | grep interpreter

　　[Requesting program interpreter: /lib/ld-linux-armhf.so.3]

　　root@tegra-ubuntu:~# readelf -l b.out | grep interpreter

　　[Requesting program interpreter: /lib/ld-linux.so.3]