Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b
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Xamarin Public Jenkins (auto-signing)
2020-01-16 16:38:04 +00:00
parent d94e79959b
commit 468663ddbb
48518 changed files with 2789335 additions and 61176 deletions

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//===-- dfsan_interceptors.cc ---------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of DataFlowSanitizer.
//
// Interceptors for standard library functions.
//===----------------------------------------------------------------------===//
#include "dfsan/dfsan.h"
#include "interception/interception.h"
#include "sanitizer_common/sanitizer_common.h"
using namespace __sanitizer;
INTERCEPTOR(void *, mmap, void *addr, SIZE_T length, int prot, int flags,
int fd, OFF_T offset) {
void *res = REAL(mmap)(addr, length, prot, flags, fd, offset);
if (res != (void*)-1)
dfsan_set_label(0, res, RoundUpTo(length, GetPageSize()));
return res;
}
INTERCEPTOR(void *, mmap64, void *addr, SIZE_T length, int prot, int flags,
int fd, OFF64_T offset) {
void *res = REAL(mmap64)(addr, length, prot, flags, fd, offset);
if (res != (void*)-1)
dfsan_set_label(0, res, RoundUpTo(length, GetPageSize()));
return res;
}
namespace __dfsan {
void InitializeInterceptors() {
static int inited = 0;
CHECK_EQ(inited, 0);
INTERCEPT_FUNCTION(mmap);
INTERCEPT_FUNCTION(mmap64);
inited = 1;
}
} // namespace __dfsan