判断指令类型aarch64_insn_is_##abbr(u32 code)
@code为32bit的asm指令
kernel\5.15\arch\arm64\include\asm\insn.h
#define __AARCH64_INSN_FUNCS(abbr, mask, val) \ static __always_inline bool aarch64_insn_is_##abbr(u32 code) \ { \ BUILD_BUG_ON(~(mask) & (val)); \ return (code & (mask)) == (val); \ } \ static __always_inline u32 aarch64_insn_get_##abbr##_value(void) \ { \ return (val); \ }
__AARCH64_INSN_FUNCS(adr, 0x9F000000, 0x10000000) __AARCH64_INSN_FUNCS(adrp, 0x9F000000, 0x90000000) __AARCH64_INSN_FUNCS(prfm, 0x3FC00000, 0x39800000) __AARCH64_INSN_FUNCS(b, 0xFC000000, 0x14000000) __AARCH64_INSN_FUNCS(bl, 0xFC000000, 0x94000000) __AARCH64_INSN_FUNCS(cbz, 0x7F000000, 0x34000000)