diff --git a/libc/bionic/ndk_cruft.cpp b/libc/bionic/ndk_cruft.cpp
index 8b34495..b299684 100644
--- a/libc/bionic/ndk_cruft.cpp
+++ b/libc/bionic/ndk_cruft.cpp
@@ -340,7 +340,7 @@
   return pthread_gettid_np(t);
 }
 
-// Older versions of appportable used dlmalloc directly instead of malloc,
+// Older versions of apportable used dlmalloc directly instead of malloc,
 // so export this compatibility shim that simply calls malloc.
 extern "C" void* dlmalloc(size_t size) {
   return malloc(size);
@@ -369,3 +369,26 @@
 
 // This is never implemented in bionic, only needed for ABI compatibility with the NDK.
 extern "C" void endpwent() { }
+
+// Since dlmalloc_inspect_all and dlmalloc_trim are exported for systems
+// that use dlmalloc, be consistent and export them everywhere.
+#if defined(USE_JEMALLOC)
+extern "C" void dlmalloc_inspect_all(void (*)(void*, void*, size_t, void*), void*) {
+}
+#else
+extern "C" void dlmalloc_inspect_all_real(void (*)(void*, void*, size_t, void*), void*);
+extern "C" void dlmalloc_inspect_all(void (*handler)(void*, void*, size_t, void*), void* arg) {
+  dlmalloc_inspect_all_real(handler, arg);
+}
+#endif
+
+#if defined(USE_JEMALLOC)
+extern "C" int dlmalloc_trim(size_t) {
+  return 0;
+}
+#else
+extern "C" int dlmalloc_trim_real(size_t);
+extern "C" int dlmalloc_trim(size_t pad) {
+  return dlmalloc_trim_real(pad);
+}
+#endif