diff --git a/options/posix/generic/strings-stubs.cpp b/options/posix/generic/strings-stubs.cpp
index cb602dc75f..524c424406 100644
--- a/options/posix/generic/strings-stubs.cpp
+++ b/options/posix/generic/strings-stubs.cpp
@@ -93,6 +93,14 @@ int strncasecmp(const char *a, const char *b, size_t size) {
 }
 
 // Marked as obsolete in posix 2008 but used by at least tracker
+int bcmp(const void *s1, const void *s2, size_t n) {
+	return memcmp(s1, s2, n);
+}
+
+void bcopy(const void *s1, void *s2, size_t n) {
+	memmove(s2, s1, n);
+}
+
 void bzero(void *s, size_t n) {
 	memset(s, 0, n);
 }
diff --git a/options/posix/include/strings.h b/options/posix/include/strings.h
index e194608113..a21c3d7f30 100644
--- a/options/posix/include/strings.h
+++ b/options/posix/include/strings.h
@@ -17,7 +17,9 @@ int ffs(int word);
 int strcasecmp(const char *a, const char *b);
 int strncasecmp(const char *a, const char *b, size_t size);
 
-// Marked as obsolete in posix 2008 but used by at least tracker
+/* Marked as obsolete in posix 2008 but used by at least tracker */
+int bcmp(const void *s1, const void *s2, size_t n);
+void bcopy(const void *s1, void *s2, size_t n);
 void bzero(void *s, size_t n);
 
 #endif /* !__MLIBC_ABI_ONLY */