diff --git a/lib/libthr/arch/aarch64/include/pthread_md.h b/lib/libthr/arch/aarch64/include/pthread_md.h
--- a/lib/libthr/arch/aarch64/include/pthread_md.h
+++ b/lib/libthr/arch/aarch64/include/pthread_md.h
@@ -49,4 +49,9 @@
 	return (_tcb_get()->tcb_thread);
 }
 
+static __inline void
+_thr_resolve_machdep(void)
+{
+}
+
 #endif /* _PTHREAD_MD_H_ */
diff --git a/lib/libthr/arch/amd64/include/pthread_md.h b/lib/libthr/arch/amd64/include/pthread_md.h
--- a/lib/libthr/arch/amd64/include/pthread_md.h
+++ b/lib/libthr/arch/amd64/include/pthread_md.h
@@ -52,4 +52,9 @@
 	return (thr);
 }
 
+static __inline void
+_thr_resolve_machdep(void)
+{
+}
+
 #endif
diff --git a/lib/libthr/arch/arm/Makefile.inc b/lib/libthr/arch/arm/Makefile.inc
new file mode 100644
--- /dev/null
+++ b/lib/libthr/arch/arm/Makefile.inc
@@ -0,0 +1,3 @@
+.PATH: ${.CURDIR}/arch/arm
+SRCS+= \
+ thr_rtld_arm.c
diff --git a/lib/libthr/arch/aarch64/include/pthread_md.h b/lib/libthr/arch/arm/thr_rtld_arm.c
copy from lib/libthr/arch/aarch64/include/pthread_md.h
copy to lib/libthr/arch/arm/thr_rtld_arm.c
--- a/lib/libthr/arch/aarch64/include/pthread_md.h
+++ b/lib/libthr/arch/arm/thr_rtld_arm.c
@@ -1,17 +1,14 @@
 /*-
- * Copyright (c) 2005 David Xu <davidxu@freebsd.org>.
- * Copyright (c) 2014 the FreeBSD Foundation
- * All rights reserved.
+ * SPDX-License-Identifier: BSD-2-Clause
  *
- * Portions of this software were developed by Andrew Turner
- * under sponsorship from the FreeBSD Foundation
+ * Copyright (c) 2024, Michal Meloun <mmel@freebsd.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
- *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
+ *    notice unmodified, this list of conditions, and the following
+ *    disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
@@ -28,25 +25,43 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-/*
- * Machine-dependent thread prototypes/definitions.
- */
-#ifndef _PTHREAD_MD_H_
-#define	_PTHREAD_MD_H_
+#include <stdlib.h>
+#include <string.h>
+
+#include "thr_private.h"
+
+int __aeabi_idiv(int , int );
+unsigned __aeabi_uidiv(unsigned, unsigned );
 
-#include <sys/types.h>
-#include <machine/tls.h>
+struct {int q; int r;} __aeabi_idivmod(int, int );
+struct {unsigned q; unsigned r;} __aeabi_uidivmod(unsigned, unsigned);
 
-#define	CPU_SPINWAIT
+struct {int64_t q; int64_t r;} __aeabi_ldivmod(int64_t, int64_t);
+struct {uint64_t q; uint64_t r;} __aeabi_uldivmod(uint64_t, uint64_t);
 
-/* For use in _Static_assert to check structs will fit in a page */
-#define	THR_PAGE_SIZE_MIN	PAGE_SIZE_4K
+void __aeabi_memset(void *dest, size_t n, int c);
+void __aeabi_memclr(void *dest, size_t n);
+void __aeabi_memmove(void *dest, void *src, size_t n);
+void __aeabi_memcpy(void *dest, void *src, size_t n);
+void __aeabi_memcmp(void *dest, void *src, size_t n);
 
-static __inline struct pthread *
-_get_curthread(void)
+void
+_thr_resolve_machdep(void)
 {
+	char tmp[2];
 
-	return (_tcb_get()->tcb_thread);
-}
+	__aeabi_idiv(1, 1);
+	__aeabi_uidiv(1, 1);
+
+	__aeabi_idivmod(1, 1);
+	__aeabi_uidivmod(1, 1);
 
-#endif /* _PTHREAD_MD_H_ */
+	__aeabi_ldivmod(1, 1);
+	__aeabi_uldivmod(1, 1);
+
+	__aeabi_memset(tmp, 1, 0);
+	__aeabi_memclr(tmp, 1);
+	__aeabi_memmove(tmp, tmp + 1, 1);
+	__aeabi_memcpy(tmp, tmp + 1, 1);
+	__aeabi_memcmp(tmp, tmp + 1, 1);
+}
diff --git a/lib/libthr/arch/i386/include/pthread_md.h b/lib/libthr/arch/i386/include/pthread_md.h
--- a/lib/libthr/arch/i386/include/pthread_md.h
+++ b/lib/libthr/arch/i386/include/pthread_md.h
@@ -52,4 +52,9 @@
 	return (thr);
 }
 
+static __inline void
+_thr_resolve_machdep(void)
+{
+}
+
 #endif
diff --git a/lib/libthr/arch/powerpc/include/pthread_md.h b/lib/libthr/arch/powerpc/include/pthread_md.h
--- a/lib/libthr/arch/powerpc/include/pthread_md.h
+++ b/lib/libthr/arch/powerpc/include/pthread_md.h
@@ -49,4 +49,9 @@
 	return (NULL);
 }
 
+static __inline void
+_thr_resolve_machdep(void)
+{
+}
+
 #endif /* _PTHREAD_MD_H_ */
diff --git a/lib/libthr/arch/riscv/include/pthread_md.h b/lib/libthr/arch/riscv/include/pthread_md.h
--- a/lib/libthr/arch/riscv/include/pthread_md.h
+++ b/lib/libthr/arch/riscv/include/pthread_md.h
@@ -56,4 +56,9 @@
 	return (NULL);
 }
 
+static __inline void
+_thr_resolve_machdep(void)
+{
+}
+
 #endif /* _PTHREAD_MD_H_ */
diff --git a/lib/libthr/thread/thr_private.h b/lib/libthr/thread/thr_private.h
--- a/lib/libthr/thread/thr_private.h
+++ b/lib/libthr/thread/thr_private.h
@@ -1103,6 +1103,7 @@
 bool __thr_get_main_stack_base(char **base);
 bool __thr_get_main_stack_lim(size_t *lim);
 int _Tthr_sigqueue(pthread_t pthread, int sig, const union sigval value);
+void _thr_resolve_machdep(void);
 
 __END_DECLS
 __NULLABILITY_PRAGMA_POP
diff --git a/lib/libthr/thread/thr_rtld.c b/lib/libthr/thread/thr_rtld.c
--- a/lib/libthr/thread/thr_rtld.c
+++ b/lib/libthr/thread/thr_rtld.c
@@ -276,6 +276,9 @@
 	_thr_signal_block_check_fast();
 	_thr_signal_block_setup(curthread);
 
+	/* resolve machine depended functions, if any */
+	_thr_resolve_machdep();
+
 	uc_len = __getcontextx_size();
 	uc = alloca(uc_len);
 	getcontext(uc);