I downloaded 64bit toolchain from:
and after extraction I had this problem.
Using file command I discovered that the toolchain is 32bit and not 64bit:
install/bin/aarch64-unknown-linux-gnu-gcc: ELF 32-bit LSB executable, Intel 80386, version 1 (GNU/Linux), statically linked, for GNU/Linux 2.6.24, BuildID[sha1]=f36837f48003dacbe0c3febceae1f762df882f75, with debug_info, not stripped
I tried to download 32bit toolchain (I thought that was an error on publication), but is the same 32bit version.
I tried to download the version from L4T 28.1 and 27.1 but I obtained the same file.
Please re publish the right toolchains.
Thanks in advance