diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
index cb9f387c2ad7a..87a195bdcd4b4 100644
--- a/libc-test/semver/linux.txt
+++ b/libc-test/semver/linux.txt
@@ -198,6 +198,11 @@ BS0
 BS1
 BSDLY
 BUFSIZ
+BUS_ADRALN
+BUS_ADRERR
+BUS_OBJERR
+BUS_MCEERR_AR
+BUS_MCEERR_AO
 CANFD_BRS
 CANFD_ESI
 CANFD_MAX_DLC
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index 8ebca0930107a..20e203bde37b0 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -449,6 +449,12 @@ pub const TCP_MAXSEG: ::c_int = 2;
 
 pub const PIPE_BUF: usize = 512;
 
+// si_code values for SIGBUS signal
+pub const BUS_ADRALN: ::c_int = 1;
+pub const BUS_ADRERR: ::c_int = 2;
+pub const BUS_OBJERR: ::c_int = 3;
+
+// si_code values for SIGCHLD signal
 pub const CLD_EXITED: ::c_int = 1;
 pub const CLD_KILLED: ::c_int = 2;
 pub const CLD_DUMPED: ::c_int = 3;
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index db53784d9ab41..bb2e0351bf2cb 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -1243,6 +1243,12 @@ pub const WEXITED: ::c_int = 0x08;
 pub const WSTOPPED: ::c_int = 0x10;
 pub const WNOWAIT: ::c_int = 0x20;
 
+// si_code values for SIGBUS signal
+pub const BUS_ADRALN: ::c_int = 40;
+pub const BUS_ADRERR: ::c_int = 41;
+pub const BUS_OBJERR: ::c_int = 42;
+
+// si_code values for SIGCHLD signal
 pub const CLD_EXITED: ::c_int = 60;
 pub const CLD_KILLED: ::c_int = 61;
 pub const CLD_DUMPED: ::c_int = 62;
diff --git a/src/unix/linux_like/mod.rs b/src/unix/linux_like/mod.rs
index e74f1811cc2c2..57600f24b8f12 100644
--- a/src/unix/linux_like/mod.rs
+++ b/src/unix/linux_like/mod.rs
@@ -1211,6 +1211,15 @@ pub const PIPE_BUF: usize = 4096;
 
 pub const SI_LOAD_SHIFT: ::c_uint = 16;
 
+// si_code values for SIGBUS signal
+pub const BUS_ADRALN: ::c_int = 1;
+pub const BUS_ADRERR: ::c_int = 2;
+pub const BUS_OBJERR: ::c_int = 3;
+// Linux-specific si_code values for SIGBUS signal
+pub const BUS_MCEERR_AR: ::c_int = 4;
+pub const BUS_MCEERR_AO: ::c_int = 5;
+
+// si_code values for SIGCHLD signal
 pub const CLD_EXITED: ::c_int = 1;
 pub const CLD_KILLED: ::c_int = 2;
 pub const CLD_DUMPED: ::c_int = 3;