일단 strace 실행strace lsexecve("/usr/bin/ls", ["ls"], 0xffffd2497820 /* 62 vars */) = 0brk(NULL) = 0xc63a27921000mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xe8c8d6ac7000faccessat(AT_FDCWD, "/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3fstat(3, {st_mode=S_IF..