1 //===-- scudo_malloc.cpp ----------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 /// Interceptors for malloc related functions.
12 //===----------------------------------------------------------------------===//
14 #include "scudo_allocator.h"
16 #include "interception/interception.h"
17 #include "sanitizer_common/sanitizer_platform_interceptors.h"
21 using namespace __scudo;
24 INTERCEPTOR_ATTRIBUTE void free(void *ptr) {
25 scudoDeallocate(ptr, 0, 0, FromMalloc);
28 INTERCEPTOR_ATTRIBUTE void *malloc(size_t size) {
29 return scudoAllocate(size, 0, FromMalloc);
32 INTERCEPTOR_ATTRIBUTE void *realloc(void *ptr, size_t size) {
33 return scudoRealloc(ptr, size);
36 INTERCEPTOR_ATTRIBUTE void *calloc(size_t nmemb, size_t size) {
37 return scudoCalloc(nmemb, size);
40 INTERCEPTOR_ATTRIBUTE void *valloc(size_t size) {
41 return scudoValloc(size);
45 int posix_memalign(void **memptr, size_t alignment, size_t size) {
46 return scudoPosixMemalign(memptr, alignment, size);
49 #if SANITIZER_INTERCEPT_CFREE
50 INTERCEPTOR_ATTRIBUTE void cfree(void *ptr) ALIAS("free");
53 #if SANITIZER_INTERCEPT_MEMALIGN
54 INTERCEPTOR_ATTRIBUTE void *memalign(size_t alignment, size_t size) {
55 return scudoAllocate(size, alignment, FromMemalign);
59 void *__libc_memalign(size_t alignment, size_t size) ALIAS("memalign");
62 #if SANITIZER_INTERCEPT_PVALLOC
63 INTERCEPTOR_ATTRIBUTE void *pvalloc(size_t size) {
64 return scudoPvalloc(size);
68 #if SANITIZER_INTERCEPT_ALIGNED_ALLOC
69 INTERCEPTOR_ATTRIBUTE void *aligned_alloc(size_t alignment, size_t size) {
70 return scudoAlignedAlloc(alignment, size);
74 #if SANITIZER_INTERCEPT_MALLOC_USABLE_SIZE
75 INTERCEPTOR_ATTRIBUTE size_t malloc_usable_size(void *ptr) {
76 return scudoMallocUsableSize(ptr);
80 #if SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO
81 INTERCEPTOR_ATTRIBUTE int mallopt(int cmd, int value) {