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