- aes
- Use the AES cryptography instruction set
- crc32
- Use the CRC32 instruction set
- edsp
- Use the enhanced DSP instructions (ARMv*E and ARMv6+)
- iwmmxt
- Use the iwMMXt instruction set
- iwmmxt2
- Use the iwMMXt2 instruction set
- neon
- Use the NEON (ASIMD) instruction set
- sha1
- Use the SHA-1 cryptography instruction set
- sha2
- Use the SHA-2 cryptography instruction set
- thumb
- Enable Thumb instruction set (ARMv*T and ARMv6+)
- thumb2
- Enable Thumb-2 instruction set (ARMv*T2 and ARMv7+)
- v4
- Use instructions added in ARMv4
- v5
- Use instructions added in ARMv5
- v6
- Use instructions added in ARMv6
- v7
- Use instructions added in ARMv7
- v8
- Use instructions added in ARMv8
- vfp
- Use the VFP version 2 instruction set
- vfp-d32
- Indicate that the FPU has 32 64-bit VFP (v3+) registers (16 otherwise)
- vfpv3
- Use the VFP version 3 instruction set
- vfpv4
- Use the VFP version 4 instruction set