diff --git a/libc-test/semver/android.txt b/libc-test/semver/android.txt
index 4abe48465f70..0787fe67cb23 100644
--- a/libc-test/semver/android.txt
+++ b/libc-test/semver/android.txt
@@ -150,6 +150,8 @@ AT_FLAGS
 AT_GID
 AT_HWCAP
 AT_HWCAP2
+AT_HWCAP3
+AT_HWCAP4
 AT_IGNORE
 AT_MINSIGSTKSZ
 AT_NOTELF
diff --git a/libc-test/semver/freebsd.txt b/libc-test/semver/freebsd.txt
index be24fc9fe9ef..ece7e0b95da9 100644
--- a/libc-test/semver/freebsd.txt
+++ b/libc-test/semver/freebsd.txt
@@ -96,6 +96,8 @@ AT_FLAGS
 AT_GID
 AT_HWCAP
 AT_HWCAP2
+AT_HWCAP3
+AT_HWCAP4
 AT_NCPUS
 AT_NOTELF
 AT_NULL
diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
index c745733f9963..b6b2008ea6ad 100644
--- a/libc-test/semver/linux.txt
+++ b/libc-test/semver/linux.txt
@@ -168,6 +168,8 @@ AT_FLAGS
 AT_GID
 AT_HWCAP
 AT_HWCAP2
+AT_HWCAP3
+AT_HWCAP4
 AT_IGNORE
 AT_MINSIGSTKSZ
 AT_NOTELF
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 88eb12541ff9..e2cc3c1181b9 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -3708,6 +3708,8 @@ pub const AT_HWCAP: c_int = 25;
 pub const AT_HWCAP2: c_int = 26;
 pub const AT_USRSTACKBASE: c_int = 35;
 pub const AT_USRSTACKLIM: c_int = 36;
+pub const AT_HWCAP3: c_int = 38;
+pub const AT_HWCAP4: c_int = 39;
 
 pub const TABDLY: crate::tcflag_t = 0x00000004;
 pub const TAB0: crate::tcflag_t = 0x00000000;
diff --git a/src/unix/linux_like/android/mod.rs b/src/unix/linux_like/android/mod.rs
index 664340357283..0c930f62ffa0 100644
--- a/src/unix/linux_like/android/mod.rs
+++ b/src/unix/linux_like/android/mod.rs
@@ -3473,6 +3473,8 @@ pub const AT_RANDOM: c_ulong = 25;
 pub const AT_HWCAP2: c_ulong = 26;
 pub const AT_RSEQ_FEATURE_SIZE: c_ulong = 27;
 pub const AT_RSEQ_ALIGN: c_ulong = 28;
+pub const AT_HWCAP3: c_ulong = 29;
+pub const AT_HWCAP4: c_ulong = 30;
 pub const AT_EXECFN: c_ulong = 31;
 pub const AT_MINSIGSTKSZ: c_ulong = 51;
 
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index f0b473230e50..770ff4fe76ea 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -2513,6 +2513,8 @@ pub const AT_BASE_PLATFORM: c_ulong = 24;
 pub const AT_RANDOM: c_ulong = 25;
 pub const AT_HWCAP2: c_ulong = 26;
 
+pub const AT_HWCAP3: c_ulong = 29;
+pub const AT_HWCAP4: c_ulong = 30;
 pub const AT_EXECFN: c_ulong = 31;
 
 // defined in arch/<arch>/include/uapi/asm/auxvec.h but has the same value