diff --git a/libc-test/build.rs b/libc-test/build.rs
index f070e4fb51b44..ad9c2152dc954 100755
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -1783,6 +1783,7 @@ fn test_freebsd(target: &str) {
                 "sys/mman.h",
                 "sys/mount.h",
                 "sys/msg.h",
+                "sys/procctl.h",
                 "sys/procdesc.h",
                 "sys/ptrace.h",
                 "sys/random.h",
diff --git a/libc-test/semver/dragonfly.txt b/libc-test/semver/dragonfly.txt
index c41c3b689b1bc..9d1e52b6436c4 100644
--- a/libc-test/semver/dragonfly.txt
+++ b/libc-test/semver/dragonfly.txt
@@ -725,6 +725,11 @@ POSIX_MADV_RANDOM
 POSIX_MADV_SEQUENTIAL
 POSIX_MADV_WILLNEED
 PPPDISC
+PROC_PDEATHSIG_CTL
+PROC_PDEATHSIG_STATUS
+PROC_REAP_ACQUIRE
+PROC_REAP_RELEASE
+PROC_REAP_STATUS
 PTHREAD_CREATE_DETACHED
 PTHREAD_CREATE_JOINABLE
 PTHREAD_MUTEX_DEFAULT
@@ -1307,6 +1312,7 @@ popen
 posix_madvise
 ppoll
 preadv
+procctl
 pseudo_AF_HDRCMPLT
 pseudo_AF_KEY
 pseudo_AF_PIP
diff --git a/libc-test/semver/freebsd.txt b/libc-test/semver/freebsd.txt
index c42716b0be27f..497687a0e49d3 100644
--- a/libc-test/semver/freebsd.txt
+++ b/libc-test/semver/freebsd.txt
@@ -832,6 +832,19 @@ POSIX_SPAWN_SETSCHEDULER
 POSIX_SPAWN_SETSIGDEF
 POSIX_SPAWN_SETSIGMASK
 PPPDISC
+PROC_PDEATHSIG_CTL
+PROC_PDEATHSIG_STATUS
+PROC_REAP_ACQUIRE
+PROC_REAP_GETPIDS
+PROC_REAP_RELEASE
+PROC_REAP_STATUS
+PROC_SPROTECT
+PROC_STACKGAP_CTL
+PROC_STACKGAP_STATUS
+PROC_TRACE_CTL
+PROC_TRACE_STATUS
+PROC_TRAPCAP_CTL
+PROC_TRAPCAP_STATUS
 PTHREAD_CREATE_DETACHED
 PTHREAD_CREATE_JOINABLE
 PTHREAD_MUTEX_ADAPTIVE_NP
@@ -1561,6 +1574,7 @@ posix_spawnattr_t
 posix_spawnp
 ppoll
 preadv
+procctl
 pseudo_AF_HDRCMPLT
 pseudo_AF_KEY
 pseudo_AF_PIP
diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
index 0eaac540101d6..66e6b65baa8e6 100644
--- a/src/unix/bsd/freebsdlike/dragonfly/mod.rs
+++ b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -820,6 +820,12 @@ pub const SO_CPUHINT: ::c_int = 0x1030;
 
 pub const PT_FIRSTMACH: ::c_int = 32;
 
+pub const PROC_REAP_ACQUIRE: ::c_int = 0x0001;
+pub const PROC_REAP_RELEASE: ::c_int = 0x0002;
+pub const PROC_REAP_STATUS: ::c_int = 0x0003;
+pub const PROC_PDEATHSIG_CTL: ::c_int = 0x0004;
+pub const PROC_PDEATHSIG_STATUS: ::c_int = 0x0005;
+
 // https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/net/if.h#L101
 pub const IFF_UP: ::c_int = 0x1; // interface is up
 pub const IFF_BROADCAST: ::c_int = 0x2; // broadcast address valid
@@ -1301,6 +1307,7 @@ extern "C" {
     pub fn shmat(shmid: ::c_int, shmaddr: *const ::c_void, shmflg: ::c_int) -> *mut ::c_void;
     pub fn shmdt(shmaddr: *const ::c_void) -> ::c_int;
     pub fn shmctl(shmid: ::c_int, cmd: ::c_int, buf: *mut ::shmid_ds) -> ::c_int;
+    pub fn procctl(idtype: ::idtype_t, id: ::id_t, cmd: ::c_int, data: *mut ::c_void) -> ::c_int;
 }
 
 #[link(name = "rt")]
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
index dc91aad447a46..601f33d315c6c 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
@@ -202,6 +202,9 @@ pub const GRND_RANDOM: ::c_uint = 0x2;
 
 pub const RAND_MAX: ::c_int = 0x7fff_fffd;
 
+pub const PROC_ASLR_CTL: ::c_int = 13;
+pub const PROC_ASLR_STATUS: ::c_int = 14;
+
 pub const SO_DOMAIN: ::c_int = 0x1019;
 
 pub const EINTEGRITY: ::c_int = 97;
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
index 7ed995e33c82b..65c377d235800 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
@@ -219,6 +219,11 @@ pub const EINTEGRITY: ::c_int = 97;
 pub const ELAST: ::c_int = 97;
 pub const GRND_INSECURE: ::c_uint = 0x4;
 
+pub const PROC_ASLR_CTL: ::c_int = 13;
+pub const PROC_ASLR_STATUS: ::c_int = 14;
+pub const PROC_PROTMAX_CTL: ::c_int = 15;
+pub const PROC_PROTMAX_STATUS: ::c_int = 16;
+
 pub const LOCAL_CREDS_PERSISTENT: ::c_int = 3;
 pub const SCM_CREDS2: ::c_int = 0x08;
 
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index f5a2469174f2f..f75970ed5c0b0 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -840,6 +840,21 @@ pub const PTRACE_LWP: ::c_int = 0x0010;
 pub const PTRACE_VFORK: ::c_int = 0x0020;
 pub const PTRACE_DEFAULT: ::c_int = PTRACE_EXEC;
 
+pub const PROC_SPROTECT: ::c_int = 1;
+pub const PROC_REAP_ACQUIRE: ::c_int = 2;
+pub const PROC_REAP_RELEASE: ::c_int = 3;
+pub const PROC_REAP_STATUS: ::c_int = 4;
+pub const PROC_REAP_GETPIDS: ::c_int = 5;
+pub const PROC_REAP_KILL: ::c_int = 6;
+pub const PROC_TRACE_CTL: ::c_int = 7;
+pub const PROC_TRACE_STATUS: ::c_int = 8;
+pub const PROC_TRAPCAP_CTL: ::c_int = 9;
+pub const PROC_TRAPCAP_STATUS: ::c_int = 10;
+pub const PROC_PDEATHSIG_CTL: ::c_int = 11;
+pub const PROC_PDEATHSIG_STATUS: ::c_int = 12;
+pub const PROC_STACKGAP_CTL: ::c_int = 17;
+pub const PROC_STACKGAP_STATUS: ::c_int = 18;
+
 pub const AF_SLOW: ::c_int = 33;
 pub const AF_SCLUSTER: ::c_int = 34;
 pub const AF_ARP: ::c_int = 35;
@@ -1761,6 +1776,8 @@ extern "C" {
     pub fn dallocx(ptr: *mut ::c_void, flags: ::c_int);
     pub fn sdallocx(ptr: *mut ::c_void, size: ::size_t, flags: ::c_int);
     pub fn nallocx(size: ::size_t, flags: ::c_int) -> ::size_t;
+
+    pub fn procctl(idtype: ::idtype_t, id: ::id_t, cmd: ::c_int, data: *mut ::c_void) -> ::c_int;
 }
 
 #[link(name = "util")]