1 //===-- scudo_malloc.cpp ----------------------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 /// Interceptors for malloc related functions.
11 //===----------------------------------------------------------------------===//
13 #include "scudo_allocator.h"
15 #include "interception/interception.h"
16 #include "sanitizer_common/sanitizer_platform_interceptors.h"
20 using namespace __scudo;
23 INTERCEPTOR_ATTRIBUTE void free(void *ptr) {
24 scudoDeallocate(ptr, 0, 0, FromMalloc);
27 INTERCEPTOR_ATTRIBUTE void *malloc(size_t size) {
28 return scudoAllocate(size, 0, FromMalloc);
31 INTERCEPTOR_ATTRIBUTE void *realloc(void *ptr, size_t size) {
32 return scudoRealloc(ptr, size);
35 INTERCEPTOR_ATTRIBUTE void *calloc(size_t nmemb, size_t size) {
36 return scudoCalloc(nmemb, size);
39 INTERCEPTOR_ATTRIBUTE void *valloc(size_t size) {
40 return scudoValloc(size);
44 int posix_memalign(void **memptr, size_t alignment, size_t size) {
45 return scudoPosixMemalign(memptr, alignment, size);
48 #if SANITIZER_INTERCEPT_CFREE
49 INTERCEPTOR_ATTRIBUTE void cfree(void *ptr) ALIAS("free");
52 #if SANITIZER_INTERCEPT_MEMALIGN
53 INTERCEPTOR_ATTRIBUTE void *memalign(size_t alignment, size_t size) {
54 return scudoAllocate(size, alignment, FromMemalign);
58 void *__libc_memalign(size_t alignment, size_t size) ALIAS("memalign");
61 #if SANITIZER_INTERCEPT_PVALLOC
62 INTERCEPTOR_ATTRIBUTE void *pvalloc(size_t size) {
63 return scudoPvalloc(size);
67 #if SANITIZER_INTERCEPT_ALIGNED_ALLOC
68 INTERCEPTOR_ATTRIBUTE void *aligned_alloc(size_t alignment, size_t size) {
69 return scudoAlignedAlloc(alignment, size);
73 #if SANITIZER_INTERCEPT_MALLOC_USABLE_SIZE
74 INTERCEPTOR_ATTRIBUTE size_t malloc_usable_size(void *ptr) {
75 return scudoMallocUsableSize(ptr);
79 #if SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO
80 INTERCEPTOR_ATTRIBUTE int mallopt(int cmd, int value) {