| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <private/bionic_config.h> |
| #include <private/bionic_globals.h> |
| |
| #include <stdio.h> |
| |
| #include <async_safe/log.h> |
| |
| #if !defined(LIBC_STATIC) |
| extern "C" void* native_bridge_calloc(size_t, size_t); |
| extern "C" void native_bridge_free(void*); |
| extern "C" struct mallinfo native_bridge_mallinfo(); |
| extern "C" void* native_bridge_malloc(size_t); |
| extern "C" size_t native_bridge_malloc_usable_size(const void*); |
| extern "C" void* native_bridge_memalign(size_t, size_t); |
| extern "C" int native_bridge_posix_memalign(void**, size_t, size_t); |
| extern "C" void* native_bridge_realloc(void*, size_t); |
| extern "C" int native_bridge_malloc_iterate(uintptr_t, size_t, void (*)(uintptr_t, size_t, void*), void*); |
| extern "C" void native_bridge_malloc_disable(); |
| extern "C" void native_bridge_malloc_enable(); |
| extern "C" int native_bridge_mallopt(int, int); |
| extern "C" void* native_bridge_aligned_alloc(size_t, size_t); |
| |
| #if defined(HAVE_DEPRECATED_MALLOC_FUNCS) |
| extern "C" void* native_bridge_pvalloc(size_t); |
| extern "C" void* native_bridge_valloc(size_t); |
| #endif |
| |
| extern "C" int native_bridge_malloc_info_helper(int options, int fd); |
| |
| static int native_bridge_malloc_info(int options, FILE* fp) { |
| // FILE objects cannot cross architecture boundary! |
| // HACK: extract underlying file descriptor and use it instead. |
| // TODO(b/146494184): at the moment malloc_info succeeds but writes nothing to memory streams! |
| fflush(fp); |
| int fd = fileno(fp); |
| if (fd == -1) { |
| return 0; |
| } |
| |
| return native_bridge_malloc_info_helper(options, fd); |
| } |
| |
| static void malloc_init_impl(libc_globals* globals) { |
| static const MallocDispatch malloc_default_dispatch __attribute__((unused)) = { |
| native_bridge_calloc, |
| native_bridge_free, |
| native_bridge_mallinfo, |
| native_bridge_malloc, |
| native_bridge_malloc_usable_size, |
| native_bridge_memalign, |
| native_bridge_posix_memalign, |
| #if defined(HAVE_DEPRECATED_MALLOC_FUNCS) |
| native_bridge_pvalloc, |
| #endif |
| native_bridge_realloc, |
| #if defined(HAVE_DEPRECATED_MALLOC_FUNCS) |
| native_bridge_valloc, |
| #endif |
| native_bridge_malloc_iterate, |
| native_bridge_malloc_disable, |
| native_bridge_malloc_enable, |
| native_bridge_mallopt, |
| native_bridge_aligned_alloc, |
| native_bridge_malloc_info, |
| }; |
| |
| globals->malloc_dispatch_table = malloc_default_dispatch; |
| atomic_store(&globals->default_dispatch_table, &malloc_default_dispatch); |
| atomic_store(&globals->current_dispatch_table, &malloc_default_dispatch); |
| } |
| |
| // Initializes memory allocation framework. |
| // This routine is called from __libc_init routines in libc_init_dynamic.cpp. |
| __LIBC_HIDDEN__ void __libc_init_malloc(libc_globals* globals) { |
| malloc_init_impl(globals); |
| } |
| #endif // !LIBC_STATIC |