1//===-- scudo_interceptors.cpp ----------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9///
10/// Linux specific malloc interception functions.
11///
12//===----------------------------------------------------------------------===//
13
14#include "sanitizer_common/sanitizer_platform.h"
15#if SANITIZER_LINUX
16
17#include "scudo_allocator.h"
18
19#include "interception/interception.h"
20
21using namespace __scudo;
22
23INTERCEPTOR(void, free, void *ptr) {
24  scudoFree(ptr, FromMalloc);
25}
26
27INTERCEPTOR(void, cfree, void *ptr) {
28  scudoFree(ptr, FromMalloc);
29}
30
31INTERCEPTOR(void*, malloc, uptr size) {
32  return scudoMalloc(size, FromMalloc);
33}
34
35INTERCEPTOR(void*, realloc, void *ptr, uptr size) {
36  return scudoRealloc(ptr, size);
37}
38
39INTERCEPTOR(void*, calloc, uptr nmemb, uptr size) {
40  return scudoCalloc(nmemb, size);
41}
42
43INTERCEPTOR(void*, valloc, uptr size) {
44  return scudoValloc(size);
45}
46
47INTERCEPTOR(void*, memalign, uptr alignment, uptr size) {
48  return scudoMemalign(alignment, size);
49}
50
51INTERCEPTOR(void*, __libc_memalign, uptr alignment, uptr size) {
52  return scudoMemalign(alignment, size);
53}
54
55INTERCEPTOR(void*, pvalloc, uptr size) {
56  return scudoPvalloc(size);
57}
58
59INTERCEPTOR(void*, aligned_alloc, uptr alignment, uptr size) {
60  return scudoAlignedAlloc(alignment, size);
61}
62
63INTERCEPTOR(int, posix_memalign, void **memptr, uptr alignment, uptr size) {
64  return scudoPosixMemalign(memptr, alignment, size);
65}
66
67INTERCEPTOR(uptr, malloc_usable_size, void *ptr) {
68  return scudoMallocUsableSize(ptr);
69}
70
71INTERCEPTOR(int, mallopt, int cmd, int value) {
72  return -1;
73}
74
75#endif // SANITIZER_LINUX
76