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
21 using namespace __scudo;
22
INTERCEPTOR(void,free,void * ptr)23 INTERCEPTOR(void, free, void *ptr) {
24 scudoFree(ptr, FromMalloc);
25 }
26
INTERCEPTOR(void,cfree,void * ptr)27 INTERCEPTOR(void, cfree, void *ptr) {
28 scudoFree(ptr, FromMalloc);
29 }
30
INTERCEPTOR(void *,malloc,uptr size)31 INTERCEPTOR(void*, malloc, uptr size) {
32 return scudoMalloc(size, FromMalloc);
33 }
34
INTERCEPTOR(void *,realloc,void * ptr,uptr size)35 INTERCEPTOR(void*, realloc, void *ptr, uptr size) {
36 return scudoRealloc(ptr, size);
37 }
38
INTERCEPTOR(void *,calloc,uptr nmemb,uptr size)39 INTERCEPTOR(void*, calloc, uptr nmemb, uptr size) {
40 return scudoCalloc(nmemb, size);
41 }
42
INTERCEPTOR(void *,valloc,uptr size)43 INTERCEPTOR(void*, valloc, uptr size) {
44 return scudoValloc(size);
45 }
46
INTERCEPTOR(void *,memalign,uptr alignment,uptr size)47 INTERCEPTOR(void*, memalign, uptr alignment, uptr size) {
48 return scudoMemalign(alignment, size);
49 }
50
INTERCEPTOR(void *,__libc_memalign,uptr alignment,uptr size)51 INTERCEPTOR(void*, __libc_memalign, uptr alignment, uptr size) {
52 return scudoMemalign(alignment, size);
53 }
54
INTERCEPTOR(void *,pvalloc,uptr size)55 INTERCEPTOR(void*, pvalloc, uptr size) {
56 return scudoPvalloc(size);
57 }
58
INTERCEPTOR(void *,aligned_alloc,uptr alignment,uptr size)59 INTERCEPTOR(void*, aligned_alloc, uptr alignment, uptr size) {
60 return scudoAlignedAlloc(alignment, size);
61 }
62
INTERCEPTOR(int,posix_memalign,void ** memptr,uptr alignment,uptr size)63 INTERCEPTOR(int, posix_memalign, void **memptr, uptr alignment, uptr size) {
64 return scudoPosixMemalign(memptr, alignment, size);
65 }
66
INTERCEPTOR(uptr,malloc_usable_size,void * ptr)67 INTERCEPTOR(uptr, malloc_usable_size, void *ptr) {
68 return scudoMallocUsableSize(ptr);
69 }
70
INTERCEPTOR(int,mallopt,int cmd,int value)71 INTERCEPTOR(int, mallopt, int cmd, int value) {
72 return -1;
73 }
74
75 #endif // SANITIZER_LINUX
76