我试图编译一个项目(从GitHub:link)与几个汇编文件,这是为ARMv8 AArch64架构编写的。当我尝试编译这些文件,我得到的几乎每一个行上同样的错误,它的开头为:装配未知助记符AArch64 ARMv8
authenc_ac_gcm_low.S:汇编消息:
authenc_ac_gcm_low.S:80: Error: unknown mnemonic `ld1.16b' -- `ld1.16b {v0},[x1]'
authenc_ac_gcm_low.S:81: Error: unknown mnemonic `rbit.16b' -- `rbit.16b v0,v0'
authenc_ac_gcm_low.S:82: Error: unknown mnemonic `st1.16b' -- `st1.16b {v0},[x0]'
authenc_ac_gcm_low.S:90: Error: unknown mnemonic `ld1.16b' -- `ld1.16b {v24},[x0]'
authenc_ac_gcm_low.S:92: Error: unknown mnemonic `ld1.16b' -- `ld1.16b {v0,v1,v2,v3},[x1],#64'
authenc_ac_gcm_low.S:93: Error: unknown mnemonic `ld1.16b' -- `ld1.16b {v4,v5,v6,v7},[x1]'
代码的小部分: (直到87线78)
ac_gcm_convert_low:
_ac_gcm_convert_low:
ld1.16b {v0}, [x1]
rbit.16b v0, v0
st1.16b {v0}, [x0]
ret
ac_gcm_ghash_low:
_ac_gcm_ghash_low:
cbz x3, exit //this might be the only line it doesn't error
我使用AArch64的Linaro的交叉编译器,编译我利用-mcpu =皮质-A53 +加密标志;不这样做导致“没有这样的指令”错误。 我对Assembly的经验很少,显然我在这里犯了一些错误,但是我找不到它。如何摆脱错误?
我见过不同的汇编器有氖指令略有不同的助记符。如果“ld1.16b {v0},[x1]”不起作用,请尝试“ld1 {v0.16b},[x1]” – BitBank