Dan Liew da820f4f57 Add missing call to __sanitizer::InitializePlatformEarly() in UBSan's standalone init.
Summary:
While working on rdar://problem/62083617 I noticed this call was
missing.

This is a no-op for all platforms except Darwin. For Darwin this
means the `use_xnu_fast_mmap` flag is initialized as it was intended
when using UBSan in standalone mode.

Reviewers: vitalybuka, vsk, kubamracek, yln, samsonov

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D78532
2020-04-21 18:43:43 -07:00

67 lines
1.8 KiB
C++

//===-- ubsan_init.cpp ----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Initialization of UBSan runtime.
//
//===----------------------------------------------------------------------===//
#include "ubsan_platform.h"
#if CAN_SANITIZE_UB
#include "ubsan_diag.h"
#include "ubsan_init.h"
#include "ubsan_flags.h"
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "sanitizer_common/sanitizer_mutex.h"
#include "sanitizer_common/sanitizer_symbolizer.h"
using namespace __ubsan;
const char *__ubsan::GetSanititizerToolName() {
return "UndefinedBehaviorSanitizer";
}
static bool ubsan_initialized;
static StaticSpinMutex ubsan_init_mu;
static void CommonInit() {
InitializeSuppressions();
}
static void CommonStandaloneInit() {
SanitizerToolName = GetSanititizerToolName();
CacheBinaryName();
InitializeFlags();
__sanitizer::InitializePlatformEarly();
__sanitizer_set_report_path(common_flags()->log_path);
AndroidLogInit();
InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
CommonInit();
Symbolizer::LateInitialize();
}
void __ubsan::InitAsStandalone() {
SpinMutexLock l(&ubsan_init_mu);
if (!ubsan_initialized) {
CommonStandaloneInit();
ubsan_initialized = true;
}
}
void __ubsan::InitAsStandaloneIfNecessary() { return InitAsStandalone(); }
void __ubsan::InitAsPlugin() {
SpinMutexLock l(&ubsan_init_mu);
if (!ubsan_initialized) {
CommonInit();
ubsan_initialized = true;
}
}
#endif // CAN_SANITIZE_UB