base/allocator/allocator_shim_override_linker_wrapped_symbols.h

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef BASE_ALLOCATOR_ALLOCATOR_SHIM_OVERRIDE_LINKER_WRAPPED_SYMBOLS_H_
#error This header is meant to be included only once by allocator_shim.cc
#endif
#define BASE_ALLOCATOR_ALLOCATOR_SHIM_OVERRIDE_LINKER_WRAPPED_SYMBOLS_H_

// This header overrides the __wrap_X symbols when using the link-time
// -Wl,-wrap,malloc shim-layer approach (see README.md).
// All references to malloc, free, etc. within the linker unit that gets the
// -wrap linker flags (e.g., libchrome.so) will be rewritten to the
// linker as references to __wrap_malloc, __wrap_free, which are defined here.

#include "base/allocator/allocator_shim_internals.h"

extern "C" {

SHIM_ALWAYS_EXPORT void* __wrap_calloc(size_t n, size_t size) {
  return ShimCalloc(n, size, nullptr);
}

SHIM_ALWAYS_EXPORT void __wrap_free(void* ptr) {
  ShimFree(ptr, nullptr);
}

SHIM_ALWAYS_EXPORT void* __wrap_malloc(size_t size) {
  return ShimMalloc(size, nullptr);
}

SHIM_ALWAYS_EXPORT void* __wrap_memalign(size_t align, size_t size) {
  return ShimMemalign(align, size, nullptr);
}

SHIM_ALWAYS_EXPORT int __wrap_posix_memalign(void** res,
                                             size_t align,
                                             size_t size) {
  return ShimPosixMemalign(res, align, size);
}

SHIM_ALWAYS_EXPORT void* __wrap_pvalloc(size_t size) {
  return ShimPvalloc(size);
}

SHIM_ALWAYS_EXPORT void* __wrap_realloc(void* address, size_t size) {
  return ShimRealloc(address, size, nullptr);
}

SHIM_ALWAYS_EXPORT void* __wrap_valloc(size_t size) {
  return ShimValloc(size, nullptr);
}

}  // extern "C"