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Diffstat (limited to 'chromium/third_party/libFuzzer/src/FuzzerShmemPosix.cpp')
-rw-r--r--chromium/third_party/libFuzzer/src/FuzzerShmemPosix.cpp108
1 files changed, 0 insertions, 108 deletions
diff --git a/chromium/third_party/libFuzzer/src/FuzzerShmemPosix.cpp b/chromium/third_party/libFuzzer/src/FuzzerShmemPosix.cpp
deleted file mode 100644
index 41a93f61004..00000000000
--- a/chromium/third_party/libFuzzer/src/FuzzerShmemPosix.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-//===- FuzzerShmemPosix.cpp - Posix shared memory ---------------*- C++ -* ===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-// SharedMemoryRegion
-//===----------------------------------------------------------------------===//
-#include "FuzzerDefs.h"
-#if LIBFUZZER_POSIX
-
-#include "FuzzerIO.h"
-#include "FuzzerShmem.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <semaphore.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-namespace fuzzer {
-
-std::string SharedMemoryRegion::Path(const char *Name) {
- return DirPlusFile(TmpDir(), Name);
-}
-
-std::string SharedMemoryRegion::SemName(const char *Name, int Idx) {
- std::string Res(Name);
- // When passing a name without a leading <slash> character to
- // sem_open, the behaviour is unspecified in POSIX. Add a leading
- // <slash> character for the name if there is no such one.
- if (!Res.empty() && Res[0] != '/')
- Res.insert(Res.begin(), '/');
- return Res + (char)('0' + Idx);
-}
-
-bool SharedMemoryRegion::Map(int fd) {
- Data =
- (uint8_t *)mmap(0, kShmemSize, PROT_WRITE | PROT_READ, MAP_SHARED, fd, 0);
- if (Data == (uint8_t*)-1)
- return false;
- return true;
-}
-
-bool SharedMemoryRegion::Create(const char *Name) {
- int fd = open(Path(Name).c_str(), O_CREAT | O_RDWR, 0777);
- if (fd < 0) return false;
- if (ftruncate(fd, kShmemSize) < 0) return false;
- if (!Map(fd))
- return false;
- for (int i = 0; i < 2; i++) {
- sem_unlink(SemName(Name, i).c_str());
- Semaphore[i] = sem_open(SemName(Name, i).c_str(), O_CREAT, 0644, 0);
- if (Semaphore[i] == SEM_FAILED)
- return false;
- }
- IAmServer = true;
- return true;
-}
-
-bool SharedMemoryRegion::Open(const char *Name) {
- int fd = open(Path(Name).c_str(), O_RDWR);
- if (fd < 0) return false;
- struct stat stat_res;
- if (0 != fstat(fd, &stat_res))
- return false;
- assert(stat_res.st_size == kShmemSize);
- if (!Map(fd))
- return false;
- for (int i = 0; i < 2; i++) {
- Semaphore[i] = sem_open(SemName(Name, i).c_str(), 0);
- if (Semaphore[i] == SEM_FAILED)
- return false;
- }
- IAmServer = false;
- return true;
-}
-
-bool SharedMemoryRegion::Destroy(const char *Name) {
- return 0 == unlink(Path(Name).c_str());
-}
-
-void SharedMemoryRegion::Post(int Idx) {
- assert(Idx == 0 || Idx == 1);
- sem_post((sem_t*)Semaphore[Idx]);
-}
-
-void SharedMemoryRegion::Wait(int Idx) {
- assert(Idx == 0 || Idx == 1);
- for (int i = 0; i < 10 && sem_wait((sem_t*)Semaphore[Idx]); i++) {
- // sem_wait may fail if interrupted by a signal.
- sleep(i);
- if (i)
- Printf("%s: sem_wait[%d] failed %s\n", i < 9 ? "WARNING" : "ERROR", i,
- strerror(errno));
- if (i == 9) abort();
- }
-}
-
-} // namespace fuzzer
-
-#endif // LIBFUZZER_POSIX