Compilation error with python

[XianmengZhang]

Hi~ I was trying to use python instead of make file to compile some asm files into elf files to run. It seems that I ran into problems between compiler and assembler. Here are the compiler commands I entered. Can someone tell me what would be the possible error? I once tried to make the first block 'riscv32-unknown-elf-gcc', these code are inherited from older version of RISCV core. I read post https://github.com/riscv/riscv-tests/issues/168 before I considered posting this question