seccom bypass

open存在openat syscall

execve存在execveat syscall

read存在readv syscall

write存在writev syscall

x64上，32 b ABI sysnum=0x40000000 | sysnum

seccom bypass参考URL:https://www.anquanke.com/post/id/219077

syscall number:https://chromium.googlesource.com/chromiumos/docs/+/master/constants/syscalls.md#x86_64-64_bit