Create a lib that uses scudo instead of jemalloc.
The media processes already use scudo as their allocator. However, it
doesn't really correctly replace the normal allocation functions, so create
a set of wrappers that allow us to use scudo closer to how jemalloc is used.
This is only a temporary change, and should be removed for the next
release of Android. In that version, we will be using standalone
scudo which won't require this wrapper code.
Bug: 123689570
Test: Ran new bionic unit tests. There are failures, but only with
Test: extensions that scudo does not support.
Change-Id: I0516c23d654a9b6c69b157c5501245d2e0b3d264
diff --git a/libc/bionic/scudo.h b/libc/bionic/scudo.h
new file mode 100644
index 0000000..d9933c4
--- /dev/null
+++ b/libc/bionic/scudo.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdio.h>
+#include <malloc.h>
+
+#include <private/bionic_config.h>
+
+__BEGIN_DECLS
+
+void* scudo_aligned_alloc(size_t, size_t);
+void* scudo_calloc(size_t, size_t);
+void scudo_free(void*);
+struct mallinfo scudo_mallinfo();
+void* scudo_malloc(size_t);
+int scudo_malloc_info(int, FILE*);
+size_t scudo_malloc_usable_size(const void*);
+int scudo_mallopt(int, int);
+void* scudo_memalign(size_t, size_t);
+void* scudo_realloc(void*, size_t);
+int scudo_posix_memalign(void**, size_t, size_t);
+#if defined(HAVE_DEPRECATED_MALLOC_FUNCS)
+void* scudo_pvalloc(size_t);
+void* scudo_valloc(size_t);
+#endif
+
+int scudo_iterate(uintptr_t, size_t, void (*)(uintptr_t, size_t, void*), void*);
+void scudo_malloc_disable();
+void scudo_malloc_enable();
+
+__END_DECLS