diff --git a/lib/libc/amd64/Symbol.map b/lib/libc/amd64/Symbol.map
--- a/lib/libc/amd64/Symbol.map
+++ b/lib/libc/amd64/Symbol.map
@@ -18,8 +18,6 @@
 	amd64_get_gsbase;
 	amd64_set_fsbase;
 	amd64_set_gsbase;
-	brk;
-	sbrk;
 };
 
 FBSD_1.6 {
@@ -43,6 +41,5 @@
 	__signalcontext;
 	signalcontext;
 	__siglongjmp;
-	_brk;
 	_vfork;
 };
diff --git a/lib/libc/arm/Symbol.map b/lib/libc/arm/Symbol.map
--- a/lib/libc/arm/Symbol.map
+++ b/lib/libc/arm/Symbol.map
@@ -6,8 +6,6 @@
 FBSD_1.0 {
 	__mcount;
 	alloca;
-	brk;
-	sbrk;
 };
 
 FBSD_1.3 {
@@ -35,8 +33,6 @@
 	_signalcontext;
 	__siglongjmp;
 	_vfork;
-	_brk;
-	_sbrk;
 
 	_libc_arm_fpu_present;
 };
diff --git a/lib/libc/i386/Symbol.map b/lib/libc/i386/Symbol.map
--- a/lib/libc/i386/Symbol.map
+++ b/lib/libc/i386/Symbol.map
@@ -8,7 +8,6 @@
 	alloca;
 	__flt_rounds;
 	rfork_thread;
-	brk;
 	i386_clr_watch;
 	i386_get_fsbase;
 	i386_get_gsbase;
@@ -20,7 +19,6 @@
 	i386_set_ldt;
 	i386_set_watch;
 	i386_vm86;
-	sbrk;
 	___tls_get_addr;
 };
 
@@ -41,5 +39,4 @@
 	signalcontext;
 	__siglongjmp;
 	_vfork;
-	_brk;
 };
diff --git a/lib/libc/powerpc/Symbol.map b/lib/libc/powerpc/Symbol.map
--- a/lib/libc/powerpc/Symbol.map
+++ b/lib/libc/powerpc/Symbol.map
@@ -11,8 +11,6 @@
 	fpgetsticky;
 	fpsetmask;
 	fpsetround;
-	brk;
-	sbrk;
 };
 
 FBSD_1.3 {
diff --git a/lib/libc/powerpc64/Symbol.map b/lib/libc/powerpc64/Symbol.map
--- a/lib/libc/powerpc64/Symbol.map
+++ b/lib/libc/powerpc64/Symbol.map
@@ -11,8 +11,6 @@
 	fpgetsticky;
 	fpsetmask;
 	fpsetround;
-	brk;
-	sbrk;
 };
 
 FBSDprivate_1.0 {
diff --git a/lib/libc/sys/Symbol.map b/lib/libc/sys/Symbol.map
--- a/lib/libc/sys/Symbol.map
+++ b/lib/libc/sys/Symbol.map
@@ -296,6 +296,8 @@
 	pread;
 	pwrite;
 	truncate;
+	brk;
+	sbrk;
 };
 
 FBSD_1.1 {
@@ -1050,4 +1052,5 @@
 	_cpuset_setdomain;
 	__sys_cpuset_setdomain;
 	rpctls_syscall;
+	_brk;
 };
diff --git a/lib/libc/tests/sys/Makefile b/lib/libc/tests/sys/Makefile
--- a/lib/libc/tests/sys/Makefile
+++ b/lib/libc/tests/sys/Makefile
@@ -3,9 +3,7 @@
 
 .include <bsd.own.mk>
 
-.if ${MACHINE_CPUARCH} != "aarch64" && ${MACHINE_CPUARCH} != "riscv"
 ATF_TESTS_C+=			brk_test
-.endif
 ATF_TESTS_C+=			cpuset_test
 ATF_TESTS_C+=			queue_test
 ATF_TESTS_C+=			sendfile_test
diff --git a/sys/vm/vm_unix.c b/sys/vm/vm_unix.c
--- a/sys/vm/vm_unix.c
+++ b/sys/vm/vm_unix.c
@@ -67,7 +67,6 @@
 int
 sys_break(struct thread *td, struct break_args *uap)
 {
-#if !defined(__aarch64__) && !defined(__riscv)
 	uintptr_t addr;
 	int error;
 
@@ -76,9 +75,6 @@
 	if (error == 0)
 		td->td_retval[0] = addr;
 	return (error);
-#else /* defined(__aarch64__) || defined(__riscv) */
-	return (ENOSYS);
-#endif /* defined(__aarch64__) || defined(__riscv) */
 }
 
 int