diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 99a1bf62548a1fb4066dd7de2455256379659743..2d062be1c1d90843b4cac93e9ce81b7bf34eeeed 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -619,6 +619,138 @@ pub const O = switch (native_arch) {
 };
 
 pub const HWCAP = switch (native_arch) {
+    .aarch64, .aarch64_be => struct {
+        pub const FP = 1 << 0;
+        pub const ASIMD = 1 << 1;
+        pub const EVTSTRM = 1 << 2;
+        pub const AES = 1 << 3;
+        pub const PMULL = 1 << 4;
+        pub const SHA1 = 1 << 5;
+        pub const SHA2 = 1 << 6;
+        pub const CRC32 = 1 << 7;
+        pub const ATOMICS = 1 << 8;
+        pub const FPHP = 1 << 9;
+        pub const ASIMDHP = 1 << 10;
+        pub const CPUID = 1 << 11;
+        pub const ASIMDRDM = 1 << 12;
+        pub const JSCVT = 1 << 13;
+        pub const FCMA = 1 << 14;
+        pub const LRCPC = 1 << 15;
+        pub const DCPOP = 1 << 16;
+        pub const SHA3 = 1 << 17;
+        pub const SM3 = 1 << 18;
+        pub const SM4 = 1 << 19;
+        pub const ASIMDDP = 1 << 20;
+        pub const SHA512 = 1 << 21;
+        pub const SVE = 1 << 22;
+        pub const ASIMDFHM = 1 << 23;
+        pub const DIT = 1 << 24;
+        pub const USCAT = 1 << 25;
+        pub const ILRCPC = 1 << 26;
+        pub const FLAGM = 1 << 27;
+        pub const SSBS = 1 << 28;
+        pub const SB = 1 << 29;
+        pub const PACA = 1 << 30;
+        pub const PACG = 1 << 31;
+        pub const GCS = 1 << 32;
+        pub const CMPBR = 1 << 33;
+        pub const FPRCVT = 1 << 34;
+        pub const F8MM8 = 1 << 35;
+        pub const F8MM4 = 1 << 36;
+        pub const SVE_F16MM = 1 << 37;
+        pub const SVE_ELTPERM = 1 << 38;
+        pub const SVE_AES2 = 1 << 39;
+        pub const SVE_BFSCALE = 1 << 40;
+        pub const SVE2P2 = 1 << 41;
+        pub const SME2P2 = 1 << 42;
+        pub const SME_SBITPERM = 1 << 43;
+        pub const SME_AES = 1 << 44;
+        pub const SME_SFEXPA = 1 << 45;
+        pub const SME_STMOP = 1 << 46;
+        pub const SME_SMOP4 = 1 << 47;
+
+        pub const @"2" = struct {
+            pub const DCPODP = 1 << 0;
+            pub const SVE2 = 1 << 1;
+            pub const SVEAES = 1 << 2;
+            pub const SVEPMULL = 1 << 3;
+            pub const SVEBITPERM = 1 << 4;
+            pub const SVESHA3 = 1 << 5;
+            pub const SVESM4 = 1 << 6;
+            pub const FLAGM2 = 1 << 7;
+            pub const FRINT = 1 << 8;
+            pub const SVEI8MM = 1 << 9;
+            pub const SVEF32MM = 1 << 10;
+            pub const SVEF64MM = 1 << 11;
+            pub const SVEBF16 = 1 << 12;
+            pub const I8MM = 1 << 13;
+            pub const BF16 = 1 << 14;
+            pub const DGH = 1 << 15;
+            pub const RNG = 1 << 16;
+            pub const BTI = 1 << 17;
+            pub const MTE = 1 << 18;
+            pub const ECV = 1 << 19;
+            pub const AFP = 1 << 20;
+            pub const RPRES = 1 << 21;
+            pub const MTE3 = 1 << 22;
+            pub const SME = 1 << 23;
+            pub const SME_I16I64 = 1 << 24;
+            pub const SME_F64F64 = 1 << 25;
+            pub const SME_I8I32 = 1 << 26;
+            pub const SME_F16F32 = 1 << 27;
+            pub const SME_B16F32 = 1 << 28;
+            pub const SME_F32F32 = 1 << 29;
+            pub const SME_FA64 = 1 << 30;
+            pub const WFXT = 1 << 31;
+            pub const EBF16 = 1 << 32;
+            pub const SVE_EBF16 = 1 << 33;
+            pub const CSSC = 1 << 34;
+            pub const RPRFM = 1 << 35;
+            pub const SVE2P1 = 1 << 36;
+            pub const SME2 = 1 << 37;
+            pub const SME2P1 = 1 << 38;
+            pub const SME_I16I32 = 1 << 39;
+            pub const SME_BI32I32 = 1 << 40;
+            pub const SME_B16B16 = 1 << 41;
+            pub const SME_F16F16 = 1 << 42;
+            pub const MOPS = 1 << 43;
+            pub const HBC = 1 << 44;
+            pub const SVE_B16B16 = 1 << 45;
+            pub const LRCPC3 = 1 << 46;
+            pub const LSE128 = 1 << 47;
+            pub const FPMR = 1 << 48;
+            pub const LUT = 1 << 49;
+            pub const FAMINMAX = 1 << 50;
+            pub const F8CVT = 1 << 51;
+            pub const F8FMA = 1 << 52;
+            pub const F8DP4 = 1 << 53;
+            pub const F8DP2 = 1 << 54;
+            pub const F8E4M3 = 1 << 55;
+            pub const F8E5M2 = 1 << 56;
+            pub const SME_LUTV2 = 1 << 57;
+            pub const SME_F8F16 = 1 << 58;
+            pub const SME_F8F32 = 1 << 59;
+            pub const SME_SF8FMA = 1 << 60;
+            pub const SME_SF8DP4 = 1 << 61;
+            pub const SME_SF8DP2 = 1 << 62;
+            pub const POE = 1 << 63;
+        };
+
+        pub const @"3" = struct {
+            pub const MTE_FAR = 1 << 0;
+            pub const MTE_STORE_ONLY = 1 << 1;
+            pub const LSFE = 1 << 2;
+            pub const LS64 = 1 << 3;
+            pub const SVE_B16MM = 1 << 4;
+            pub const SVE2P3 = 1 << 5;
+            pub const SME_LUT6 = 1 << 6;
+            pub const SME2P3 = 1 << 7;
+            pub const F16MM = 1 << 8;
+            pub const F16F32DOT = 1 << 9;
+            pub const F16F32MM = 1 << 10;
+            pub const SVE_LUT6 = 1 << 11;
+        };
+    },
     .arm, .armeb, .thumb, .thumbeb => struct {
         pub const SWP = 1 << 0;
         pub const HALF = 1 << 1;