diff options
Diffstat (limited to '')
| -rw-r--r-- | library/stdarch/crates/std_detect/src/detect/os/linux/aarch64.rs | 227 |
1 files changed, 157 insertions, 70 deletions
diff --git a/library/stdarch/crates/std_detect/src/detect/os/linux/aarch64.rs b/library/stdarch/crates/std_detect/src/detect/os/linux/aarch64.rs index b6a2e5218..6c79ba86d 100644 --- a/library/stdarch/crates/std_detect/src/detect/os/linux/aarch64.rs +++ b/library/stdarch/crates/std_detect/src/detect/os/linux/aarch64.rs @@ -23,58 +23,62 @@ pub(crate) fn detect_features() -> cache::Initializer { /// The names match those used for cpuinfo. /// /// [hwcap]: https://github.com/torvalds/linux/blob/master/arch/arm64/include/uapi/asm/hwcap.h +#[derive(Debug, Default, PartialEq)] struct AtHwcap { - fp: bool, // 0 - asimd: bool, // 1 - // evtstrm: bool, // 2 No LLVM support - aes: bool, // 3 - pmull: bool, // 4 - sha1: bool, // 5 - sha2: bool, // 6 - crc32: bool, // 7 - atomics: bool, // 8 - fphp: bool, // 9 - asimdhp: bool, // 10 - // cpuid: bool, // 11 No LLVM support - asimdrdm: bool, // 12 - jscvt: bool, // 13 - fcma: bool, // 14 - lrcpc: bool, // 15 - dcpop: bool, // 16 - sha3: bool, // 17 - sm3: bool, // 18 - sm4: bool, // 19 - asimddp: bool, // 20 - sha512: bool, // 21 - sve: bool, // 22 - fhm: bool, // 23 - dit: bool, // 24 - uscat: bool, // 25 - ilrcpc: bool, // 26 - flagm: bool, // 27 - ssbs: bool, // 28 - sb: bool, // 29 - paca: bool, // 30 - pacg: bool, // 31 - dcpodp: bool, // 32 - sve2: bool, // 33 - sveaes: bool, // 34 - // svepmull: bool, // 35 No LLVM support - svebitperm: bool, // 36 - svesha3: bool, // 37 - svesm4: bool, // 38 - // flagm2: bool, // 39 No LLVM support - frint: bool, // 40 - // svei8mm: bool, // 41 See i8mm feature - svef32mm: bool, // 42 - svef64mm: bool, // 43 - // svebf16: bool, // 44 See bf16 feature - i8mm: bool, // 45 - bf16: bool, // 46 - // dgh: bool, // 47 No LLVM support - rng: bool, // 48 - bti: bool, // 49 - mte: bool, // 50 + // AT_HWCAP + fp: bool, + asimd: bool, + // evtstrm: No LLVM support. + aes: bool, + pmull: bool, + sha1: bool, + sha2: bool, + crc32: bool, + atomics: bool, + fphp: bool, + asimdhp: bool, + // cpuid: No LLVM support. + asimdrdm: bool, + jscvt: bool, + fcma: bool, + lrcpc: bool, + dcpop: bool, + sha3: bool, + sm3: bool, + sm4: bool, + asimddp: bool, + sha512: bool, + sve: bool, + fhm: bool, + dit: bool, + uscat: bool, + ilrcpc: bool, + flagm: bool, + ssbs: bool, + sb: bool, + paca: bool, + pacg: bool, + + // AT_HWCAP2 + dcpodp: bool, + sve2: bool, + sveaes: bool, + // svepmull: No LLVM support. + svebitperm: bool, + svesha3: bool, + svesm4: bool, + // flagm2: No LLVM support. + frint: bool, + // svei8mm: See i8mm feature. + svef32mm: bool, + svef64mm: bool, + // svebf16: See bf16 feature. + i8mm: bool, + bf16: bool, + // dgh: No LLVM support. + rng: bool, + bti: bool, + mte: bool, } impl From<auxvec::AuxVec> for AtHwcap { @@ -113,25 +117,25 @@ impl From<auxvec::AuxVec> for AtHwcap { sb: bit::test(auxv.hwcap, 29), paca: bit::test(auxv.hwcap, 30), pacg: bit::test(auxv.hwcap, 31), - dcpodp: bit::test(auxv.hwcap, 32), - sve2: bit::test(auxv.hwcap, 33), - sveaes: bit::test(auxv.hwcap, 34), - // svepmull: bit::test(auxv.hwcap, 35), - svebitperm: bit::test(auxv.hwcap, 36), - svesha3: bit::test(auxv.hwcap, 37), - svesm4: bit::test(auxv.hwcap, 38), - // flagm2: bit::test(auxv.hwcap, 39), - frint: bit::test(auxv.hwcap, 40), - // svei8mm: bit::test(auxv.hwcap, 41), - svef32mm: bit::test(auxv.hwcap, 42), - svef64mm: bit::test(auxv.hwcap, 43), - // svebf16: bit::test(auxv.hwcap, 44), - i8mm: bit::test(auxv.hwcap, 45), - bf16: bit::test(auxv.hwcap, 46), - // dgh: bit::test(auxv.hwcap, 47), - rng: bit::test(auxv.hwcap, 48), - bti: bit::test(auxv.hwcap, 49), - mte: bit::test(auxv.hwcap, 50), + dcpodp: bit::test(auxv.hwcap2, 0), + sve2: bit::test(auxv.hwcap2, 1), + sveaes: bit::test(auxv.hwcap2, 2), + // svepmull: bit::test(auxv.hwcap2, 3), + svebitperm: bit::test(auxv.hwcap2, 4), + svesha3: bit::test(auxv.hwcap2, 5), + svesm4: bit::test(auxv.hwcap2, 6), + // flagm2: bit::test(auxv.hwcap2, 7), + frint: bit::test(auxv.hwcap2, 8), + // svei8mm: bit::test(auxv.hwcap2, 9), + svef32mm: bit::test(auxv.hwcap2, 10), + svef64mm: bit::test(auxv.hwcap2, 11), + // svebf16: bit::test(auxv.hwcap2, 12), + i8mm: bit::test(auxv.hwcap2, 13), + bf16: bit::test(auxv.hwcap2, 14), + // dgh: bit::test(auxv.hwcap2, 15), + rng: bit::test(auxv.hwcap2, 16), + bti: bit::test(auxv.hwcap2, 17), + mte: bit::test(auxv.hwcap2, 18), } } } @@ -288,3 +292,86 @@ impl AtHwcap { value } } + +#[cfg(test)] +mod tests { + use super::*; + + #[cfg(feature = "std_detect_file_io")] + mod auxv_from_file { + use super::auxvec::auxv_from_file; + use super::*; + // The baseline hwcaps used in the (artificial) auxv test files. + fn baseline_hwcaps() -> AtHwcap { + AtHwcap { + fp: true, + asimd: true, + aes: true, + pmull: true, + sha1: true, + sha2: true, + crc32: true, + atomics: true, + fphp: true, + asimdhp: true, + asimdrdm: true, + lrcpc: true, + dcpop: true, + asimddp: true, + ssbs: true, + ..AtHwcap::default() + } + } + + #[test] + fn linux_empty_hwcap2_aarch64() { + let file = concat!( + env!("CARGO_MANIFEST_DIR"), + "/src/detect/test_data/linux-empty-hwcap2-aarch64.auxv" + ); + println!("file: {}", file); + let v = auxv_from_file(file).unwrap(); + println!("HWCAP : 0x{:0x}", v.hwcap); + println!("HWCAP2: 0x{:0x}", v.hwcap2); + assert_eq!(AtHwcap::from(v), baseline_hwcaps()); + } + #[test] + fn linux_no_hwcap2_aarch64() { + let file = concat!( + env!("CARGO_MANIFEST_DIR"), + "/src/detect/test_data/linux-no-hwcap2-aarch64.auxv" + ); + println!("file: {}", file); + let v = auxv_from_file(file).unwrap(); + println!("HWCAP : 0x{:0x}", v.hwcap); + println!("HWCAP2: 0x{:0x}", v.hwcap2); + assert_eq!(AtHwcap::from(v), baseline_hwcaps()); + } + #[test] + fn linux_hwcap2_aarch64() { + let file = concat!( + env!("CARGO_MANIFEST_DIR"), + "/src/detect/test_data/linux-hwcap2-aarch64.auxv" + ); + println!("file: {}", file); + let v = auxv_from_file(file).unwrap(); + println!("HWCAP : 0x{:0x}", v.hwcap); + println!("HWCAP2: 0x{:0x}", v.hwcap2); + assert_eq!( + AtHwcap::from(v), + AtHwcap { + // Some other HWCAP bits. + paca: true, + pacg: true, + // HWCAP2-only bits. + dcpodp: true, + frint: true, + rng: true, + bti: true, + mte: true, + ..baseline_hwcaps() + } + ); + } + } +} |