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