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1 //===-- ubsan_init.cc -----------------------------------------------------===//
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2 //
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3 // This file is distributed under the University of Illinois Open Source
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4 // License. See LICENSE.TXT for details.
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5 //
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6 //===----------------------------------------------------------------------===//
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7 //
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8 // Initialization of UBSan runtime.
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9 //
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10 //===----------------------------------------------------------------------===//
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11
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12 #include "ubsan_platform.h"
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13 #if CAN_SANITIZE_UB
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14 #include "ubsan_diag.h"
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15 #include "ubsan_init.h"
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16 #include "ubsan_flags.h"
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17 #include "sanitizer_common/sanitizer_common.h"
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18 #include "sanitizer_common/sanitizer_libc.h"
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19 #include "sanitizer_common/sanitizer_mutex.h"
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20 #include "sanitizer_common/sanitizer_symbolizer.h"
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21
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22 using namespace __ubsan;
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23
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24 const char *__ubsan::GetSanititizerToolName() {
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25 return "UndefinedBehaviorSanitizer";
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26 }
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27
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28 static bool ubsan_initialized;
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29 static StaticSpinMutex ubsan_init_mu;
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30
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31 static void CommonInit() {
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32 InitializeSuppressions();
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33 }
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34
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35 static void CommonStandaloneInit() {
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36 SanitizerToolName = GetSanititizerToolName();
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37 CacheBinaryName();
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38 InitializeFlags();
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39 __sanitizer_set_report_path(common_flags()->log_path);
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40 AndroidLogInit();
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41 InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
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42 CommonInit();
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43 }
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44
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45 void __ubsan::InitAsStandalone() {
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46 SpinMutexLock l(&ubsan_init_mu);
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47 if (!ubsan_initialized) {
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48 CommonStandaloneInit();
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49 ubsan_initialized = true;
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50 }
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51 }
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52
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53 void __ubsan::InitAsStandaloneIfNecessary() { return InitAsStandalone(); }
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54
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55 void __ubsan::InitAsPlugin() {
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56 SpinMutexLock l(&ubsan_init_mu);
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57 if (!ubsan_initialized) {
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58 CommonInit();
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59 ubsan_initialized = true;
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60 }
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61 }
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62
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63 #endif // CAN_SANITIZE_UB
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