Error: "Not a valid dynamic program", Linux-loader cannot recognize EXEC:executable type ELF

[elliott10]

Linux-loader cannot recognize EXEC:executable type ELF.
When trying to run an executable ELF, encountered error: "Not a valid dynamic program"
Aflter I compiled an shared object type ELF with -pie -fPIE parameters, linux-loader works nomally.

• ELF 64-bit LSB executable
  Compilation parameters: -no-pie

$ file rootfs/bin/testrandom
rootfs/bin/testrandom: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-musl-x86_64.so.1, for GNU/Linux 2.6.32
$ target/release/linux-loader /bin/testrandom
/lib/ld-musl-x86_64.so.1: /bin/testrandom: Not a valid dynamic program

• ELF 64-bit LSB shared object
  Compilation parameters: -pie -fPIE

$ file rootfs/bin/testrandom
rootfs/bin/testrandom: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-musl-x86_64.so.1, for GNU/Linux 2.6.32
$ target/release/linux-loader /bin/testrandom
random: 79041041

[elliott10]

关于交叉编译busybox

busybox 默认会编译成 dynamically linked的DYN (Shared object file)的类型；

而当加入参数-no-pie后，会编译成statically linked的EXEC (Executable file)类型；

两种类型都可由rCore加载进入sh