[compiler-rt] Cleanup decorators

[vitalybuka]

Summary

Removed redundant End*() methods which defined same way.
Removed redundant Warning() methods.

[alekseyshl]

What's the point of this change? It used to be generic, now it is more limiting. Even if we go this way, wouldn't it be more logical to drop End() altogether and use Default() directly? The code will make more sense.

[vitalybuka]

End() -> Default()

[vitalybuka]

Rebase

[eugenis]

I like it. Decorators affect output that follows them, so End* are pointless.

I assume Warning() must be common because it will be used in the common part of error reporting?

[vitalybuka]

I assume Warning() must be common because it will be used in the common part of error reporting?

Yes.

compiler-rt/lib/asan/asan_descriptions.h

 const char *ThreadNameWithParenthesis(AsanThreadContext *t, char buff[],
                                       uptr buff_len);
 const char *ThreadNameWithParenthesis(u32 tid, char buff[], uptr buff_len);
 
 class Decorator : public __sanitizer::SanitizerCommonDecorator {
  public:
   Decorator() : SanitizerCommonDecorator() {}
   const char *Access() { return Blue(); }
-  const char *EndAccess() { return Default(); }
   const char *Location() { return Green(); }
-  const char *EndLocation() { return Default(); }
   const char *Allocation() { return Magenta(); }
-  const char *EndAllocation() { return Default(); }
 
   const char *ShadowByte(u8 byte) {
     switch (byte) {
       case kAsanHeapLeftRedzoneMagic:
       case kAsanArrayCookieMagic:
         return Red();
       case kAsanHeapFreeMagic:
         return Magenta();
switch (byte) {
       case kAsanInternalHeapMagic:
         return Yellow();
       case kAsanIntraObjectRedzone:
         return Yellow();
       default:
         return Default();
     }
   }
-  const char *EndShadowByte() { return Default(); }
   const char *MemoryByte() { return Magenta(); }
-  const char *EndMemoryByte() { return Default(); }
 };
 
 enum ShadowKind : u8 {
   kShadowKindLow,
   kShadowKindGap,
   kShadowKindHigh,
 };
 static const char *const ShadowNames[] = {"low shadow", "shadow gap",

compiler-rt/lib/asan/asan_descriptions.cc

switch (descr.access_type) {
     case kAccessTypeUnknown:
       str.append(
           "%p is located somewhere around (this is AddressSanitizer bug!)",
           (void *)descr.bad_addr);
   }
   str.append(" %zu-byte region [%p,%p)\n", descr.chunk_size,
              (void *)descr.chunk_begin,
              (void *)(descr.chunk_begin + descr.chunk_size));
-  str.append("%s", d.EndLocation());
+  str.append("%s", d.Default());
   Printf("%s", str.data());
 }
 
 bool GetHeapAddressInformation(uptr addr, uptr access_size,
                                HeapAddressDescription *descr) {
   AsanChunkView chunk = FindHeapChunkByAddress(addr);
   if (!chunk.IsValid()) {
     return false;
static void PrintAccessAndVarIntersection(const StackVarDescr &var, uptr addr,
   if (var.line > 0) {
     str.append(" (line %d)", var.line);
   }
   if (pos_descr) {
     Decorator d;
     // FIXME: we may want to also print the size of the access here,
     // but in case of accesses generated by memset it may be confusing.
     str.append("%s <== Memory access at offset %zd %s this variable%s\n",
-               d.Location(), addr, pos_descr, d.EndLocation());
+               d.Location(), addr, pos_descr, d.Default());
   } else {
     str.append("\n");
   }
   Printf("%s", str.data());
 }
 
 bool DescribeAddressIfStack(uptr addr, uptr access_size) {
   StackAddressDescription descr;
static void DescribeAddressRelativeToGlobal(uptr addr, uptr access_size,
   } else {
     // Can it happen?
     str.append("%p is located %zd bytes inside", (void *)addr, addr - g.beg);
   }
   str.append(" of global variable '%s' defined in '",
              MaybeDemangleGlobalName(g.name));
   PrintGlobalLocation(&str, g);
   str.append("' (0x%zx) of size %zu\n", g.beg, g.size);
-  str.append("%s", d.EndLocation());
+  str.append("%s", d.Default());
   PrintGlobalNameIfASCII(&str, g);
   Printf("%s", str.data());
 }
 
 bool GetGlobalAddressInformation(uptr addr, uptr access_size,
                                  GlobalAddressDescription *descr) {
   descr->addr = addr;
   int globals_num = GetGlobalsForAddress(addr, descr->globals, descr->reg_sites,

 void StackAddressDescription::Print() const {
   Decorator d;
   char tname[128];
   Printf("%s", d.Location());
   Printf("Address %p is located in stack of thread T%d%s", addr, tid,
          ThreadNameWithParenthesis(tid, tname, sizeof(tname)));
 
   if (!frame_descr) {
-    Printf("%s\n", d.EndLocation());
+    Printf("%s\n", d.Default());
     return;
   }
-  Printf(" at offset %zu in frame%s\n", offset, d.EndLocation());
+  Printf(" at offset %zu in frame%s\n", offset, d.Default());
 
   // Now we print the frame where the alloca has happened.
   // We print this frame as a stack trace with one element.
   // The symbolizer may print more than one frame if inlining was involved.
   // The frame numbers may be different than those in the stack trace printed
   // previously. That's unfortunate, but I have no better solution,
   // especially given that the alloca may be from entirely different place
   // (e.g. use-after-scope, or different thread's stack).
-  Printf("%s", d.EndLocation());
+  Printf("%s", d.Default());
   StackTrace alloca_stack(&frame_pc, 1);
   alloca_stack.Print();
 
   InternalMmapVector<StackVarDescr> vars(16);
   if (!ParseFrameDescription(frame_descr, &vars)) {
     Printf(
         "AddressSanitizer can't parse the stack frame "
         "descriptor: |%s|\n",
void HeapAddressDescription::Print() const {
   char tname[128];
   Decorator d;
   AsanThreadContext *free_thread = nullptr;
   if (free_tid != kInvalidTid) {
     free_thread = GetThreadContextByTidLocked(free_tid);
     Printf("%sfreed by thread T%d%s here:%s\n", d.Allocation(),
            free_thread->tid,
            ThreadNameWithParenthesis(free_thread, tname, sizeof(tname)),
-           d.EndAllocation());
+           d.Default());
     StackTrace free_stack = GetStackTraceFromId(free_stack_id);
     free_stack.Print();
     Printf("%spreviously allocated by thread T%d%s here:%s\n", d.Allocation(),
            alloc_thread->tid,
            ThreadNameWithParenthesis(alloc_thread, tname, sizeof(tname)),
-           d.EndAllocation());
+           d.Default());
   } else {
     Printf("%sallocated by thread T%d%s here:%s\n", d.Allocation(),
            alloc_thread->tid,
            ThreadNameWithParenthesis(alloc_thread, tname, sizeof(tname)),
-           d.EndAllocation());
+           d.Default());
   }
   alloc_stack.Print();
   DescribeThread(GetCurrentThread());
   if (free_thread) DescribeThread(free_thread);
   DescribeThread(alloc_thread);
 }
 
 AddressDescription::AddressDescription(uptr addr, uptr access_size,

compiler-rt/lib/asan/asan_errors.cc

 
 void ErrorStackOverflow::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   Report(
       "ERROR: AddressSanitizer: %s on address %p"
       " (pc %p bp %p sp %p T%d)\n", scariness.GetDescription(),
       (void *)addr, (void *)pc, (void *)bp, (void *)sp, tid);
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   scariness.Print();
   BufferedStackTrace stack;
   GetStackTraceWithPcBpAndContext(&stack, kStackTraceMax, pc, bp, context,
                                   common_flags()->fast_unwind_on_fatal);
   stack.Print();
   ReportErrorSummary(scariness.GetDescription(), &stack);
 }
 

 void ErrorDeadlySignal::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   const char *description = __sanitizer::DescribeSignalOrException(signo);
   Report(
       "ERROR: AddressSanitizer: %s on unknown address %p (pc %p bp %p sp %p "
       "T%d)\n",
       description, (void *)addr, (void *)pc, (void *)bp, (void *)sp, tid);
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   if (pc < GetPageSizeCached()) Report("Hint: pc points to the zero page.\n");
   if (is_memory_access) {
     const char *access_type =
         write_flag == SignalContext::WRITE
             ? "WRITE"
             : (write_flag == SignalContext::READ ? "READ" : "UNKNOWN");
     Report("The signal is caused by a %s memory access.\n", access_type);
     if (addr < GetPageSizeCached())
void ErrorDoubleFree::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   char tname[128];
   Report(
       "ERROR: AddressSanitizer: attempting %s on %p in "
       "thread T%d%s:\n",
       scariness.GetDescription(), addr_description.addr, tid,
       ThreadNameWithParenthesis(tid, tname, sizeof(tname)));
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   scariness.Print();
   GET_STACK_TRACE_FATAL(second_free_stack->trace[0],
                         second_free_stack->top_frame_bp);
   stack.Print();
   addr_description.Print();
   ReportErrorSummary(scariness.GetDescription(), &stack);
 }
 
 void ErrorNewDeleteSizeMismatch::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   char tname[128];
   Report(
       "ERROR: AddressSanitizer: %s on %p in thread "
       "T%d%s:\n",
       scariness.GetDescription(), addr_description.addr, tid,
       ThreadNameWithParenthesis(tid, tname, sizeof(tname)));
-  Printf("%s  object passed to delete has wrong type:\n", d.EndWarning());
+  Printf("%s  object passed to delete has wrong type:\n", d.Default());
   Printf(
       "  size of the allocated type:   %zd bytes;\n"
       "  size of the deallocated type: %zd bytes.\n",
       addr_description.chunk_access.chunk_size, delete_size);
   CHECK_GT(free_stack->size, 0);
   scariness.Print();
   GET_STACK_TRACE_FATAL(free_stack->trace[0], free_stack->top_frame_bp);
   stack.Print();
   addr_description.Print();
   ReportErrorSummary(scariness.GetDescription(), &stack);
   Report(
       "HINT: if you don't care about these errors you may set "
       "ASAN_OPTIONS=new_delete_type_mismatch=0\n");
 }
 
 void ErrorFreeNotMalloced::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   char tname[128];
   Report(
       "ERROR: AddressSanitizer: attempting free on address "
       "which was not malloc()-ed: %p in thread T%d%s\n",
       addr_description.Address(), tid,
       ThreadNameWithParenthesis(tid, tname, sizeof(tname)));
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   CHECK_GT(free_stack->size, 0);
   scariness.Print();
   GET_STACK_TRACE_FATAL(free_stack->trace[0], free_stack->top_frame_bp);
   stack.Print();
   addr_description.Print();
   ReportErrorSummary(scariness.GetDescription(), &stack);
 }
 
 void ErrorAllocTypeMismatch::Print() {
   static const char *alloc_names[] = {"INVALID", "malloc", "operator new",
                                       "operator new []"};
   static const char *dealloc_names[] = {"INVALID", "free", "operator delete",
                                         "operator delete []"};
   CHECK_NE(alloc_type, dealloc_type);
   Decorator d;
   Printf("%s", d.Warning());
   Report("ERROR: AddressSanitizer: %s (%s vs %s) on %p\n",
          scariness.GetDescription(),
          alloc_names[alloc_type], dealloc_names[dealloc_type],
          addr_description.addr);
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   CHECK_GT(dealloc_stack->size, 0);
   scariness.Print();
   GET_STACK_TRACE_FATAL(dealloc_stack->trace[0], dealloc_stack->top_frame_bp);
   stack.Print();
   addr_description.Print();
   ReportErrorSummary(scariness.GetDescription(), &stack);
   Report(
       "HINT: if you don't care about these errors you may set "
       "ASAN_OPTIONS=alloc_dealloc_mismatch=0\n");
 }
 
 void ErrorMallocUsableSizeNotOwned::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   Report(
       "ERROR: AddressSanitizer: attempting to call malloc_usable_size() for "
       "pointer which is not owned: %p\n",
       addr_description.Address());
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   stack->Print();
   addr_description.Print();
   ReportErrorSummary(scariness.GetDescription(), stack);
 }
 
 void ErrorSanitizerGetAllocatedSizeNotOwned::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   Report(
       "ERROR: AddressSanitizer: attempting to call "
       "__sanitizer_get_allocated_size() for pointer which is not owned: %p\n",
       addr_description.Address());
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   stack->Print();
   addr_description.Print();
   ReportErrorSummary(scariness.GetDescription(), stack);
 }
 
 void ErrorStringFunctionMemoryRangesOverlap::Print() {
   Decorator d;
   char bug_type[100];
   internal_snprintf(bug_type, sizeof(bug_type), "%s-param-overlap", function);
   Printf("%s", d.Warning());
   Report(
       "ERROR: AddressSanitizer: %s: memory ranges [%p,%p) and [%p, %p) "
       "overlap\n",
       bug_type, addr1_description.Address(),
       addr1_description.Address() + length1, addr2_description.Address(),
       addr2_description.Address() + length2);
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   scariness.Print();
   stack->Print();
   addr1_description.Print();
   addr2_description.Print();
   ReportErrorSummary(bug_type, stack);
 }
 
 void ErrorStringFunctionSizeOverflow::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   Report("ERROR: AddressSanitizer: %s: (size=%zd)\n",
          scariness.GetDescription(), size);
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   scariness.Print();
   stack->Print();
   addr_description.Print();
   ReportErrorSummary(scariness.GetDescription(), stack);
 }
 
 void ErrorBadParamsToAnnotateContiguousContainer::Print() {
   Report(
void ErrorBadParamsToAnnotateContiguousContainer::Print() {
   ReportErrorSummary(scariness.GetDescription(), stack);
 }
 
 void ErrorODRViolation::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   Report("ERROR: AddressSanitizer: %s (%p):\n", scariness.GetDescription(),
          global1.beg);
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   InternalScopedString g1_loc(256), g2_loc(256);
   PrintGlobalLocation(&g1_loc, global1);
   PrintGlobalLocation(&g2_loc, global2);
   Printf("  [1] size=%zd '%s' %s\n", global1.size,
          MaybeDemangleGlobalName(global1.name), g1_loc.data());
   Printf("  [2] size=%zd '%s' %s\n", global2.size,
          MaybeDemangleGlobalName(global2.name), g2_loc.data());
   if (stack_id1 && stack_id2) {
void ErrorODRViolation::Print() {
   ReportErrorSummary(error_msg.data());
 }
 
 void ErrorInvalidPointerPair::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   Report("ERROR: AddressSanitizer: %s: %p %p\n", scariness.GetDescription(),
          addr1_description.Address(), addr2_description.Address());
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
   GET_STACK_TRACE_FATAL(pc, bp);
   stack.Print();
   addr1_description.Print();
   addr2_description.Print();
   ReportErrorSummary(scariness.GetDescription(), &stack);
 }
 
 static bool AdjacentShadowValuesAreFullyPoisoned(u8 *s) {

 }
 
 void ErrorGeneric::Print() {
   Decorator d;
   Printf("%s", d.Warning());
   uptr addr = addr_description.Address();
   Report("ERROR: AddressSanitizer: %s on address %p at pc %p bp %p sp %p\n",
          bug_descr, (void *)addr, pc, bp, sp);
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
 
   char tname[128];
   Printf("%s%s of size %zu at %p thread T%d%s%s\n", d.Access(),
          access_size ? (is_write ? "WRITE" : "READ") : "ACCESS", access_size,
          (void *)addr, tid,
-         ThreadNameWithParenthesis(tid, tname, sizeof(tname)), d.EndAccess());
+         ThreadNameWithParenthesis(tid, tname, sizeof(tname)), d.Default());
 
   scariness.Print();
   GET_STACK_TRACE_FATAL(pc, bp);
   stack.Print();
 
   // Pass bug_descr because we have a special case for
   // initialization-order-fiasco
   addr_description.Print(bug_descr);
   if (shadow_val == kAsanContiguousContainerOOBMagic)
     PrintContainerOverflowHint();
   ReportErrorSummary(bug_descr, &stack);
   PrintShadowMemoryForAddress(addr);
 }
 
 }  // namespace __asan

compiler-rt/lib/asan/asan_report.cc

 }
 
 // ---------------------- Helper functions ----------------------- {{{1
 
 void PrintMemoryByte(InternalScopedString *str, const char *before, u8 byte,
                      bool in_shadow, const char *after) {
   Decorator d;
   str->append("%s%s%x%x%s%s", before,
-              in_shadow ? d.ShadowByte(byte) : d.MemoryByte(),
-              byte >> 4, byte & 15,
-              in_shadow ? d.EndShadowByte() : d.EndMemoryByte(), after);
+              in_shadow ? d.ShadowByte(byte) : d.MemoryByte(), byte >> 4,
+              byte & 15, d.Default(), after);
 }
 
 static void PrintZoneForPointer(uptr ptr, uptr zone_ptr,
                                 const char *zone_name) {
   if (zone_ptr) {
     if (zone_name) {
       Printf("malloc_zone_from_ptr(%p) = %p, which is %s\n",
                  ptr, zone_ptr, zone_name);

compiler-rt/lib/lsan/lsan_common.cc

void InitCommonLsan() {
   }
 }
 
 class Decorator: public __sanitizer::SanitizerCommonDecorator {
  public:
   Decorator() : SanitizerCommonDecorator() { }
   const char *Error() { return Red(); }
   const char *Leak() { return Blue(); }
-  const char *End() { return Default(); }
 };
 
 static inline bool CanBeAHeapPointer(uptr p) {
   // Since our heap is located in mmap-ed memory, we can assume a sensible lower
   // bound on heap addresses.
   const uptr kMinAddress = 4 * 4096;
   if (p < kMinAddress) return false;
 #if defined(__x86_64__)
static bool CheckForLeaks() {
   uptr unsuppressed_count = param.leak_report.UnsuppressedLeakCount();
   if (unsuppressed_count > 0) {
     Decorator d;
     Printf("\n"
            "================================================================="
            "\n");
     Printf("%s", d.Error());
     Report("ERROR: LeakSanitizer: detected memory leaks\n");
-    Printf("%s", d.End());
+    Printf("%s", d.Default());
     param.leak_report.ReportTopLeaks(flags()->max_leaks);
   }
   if (common_flags()->print_suppressions)
     PrintMatchedSuppressions();
   if (unsuppressed_count > 0) {
     param.leak_report.PrintSummary();
     return true;
   }

 }
 
 void LeakReport::PrintReportForLeak(uptr index) {
   Decorator d;
   Printf("%s", d.Leak());
   Printf("%s leak of %zu byte(s) in %zu object(s) allocated from:\n",
          leaks_[index].is_directly_leaked ? "Direct" : "Indirect",
          leaks_[index].total_size, leaks_[index].hit_count);
-  Printf("%s", d.End());
+  Printf("%s", d.Default());
 
   PrintStackTraceById(leaks_[index].stack_trace_id);
 
   if (flags()->report_objects) {
     Printf("Objects leaked above:\n");
     PrintLeakedObjectsForLeak(index);
     Printf("\n");
   }

compiler-rt/lib/msan/msan_report.cc

 
 using namespace __sanitizer;
 
 namespace __msan {
 
 class Decorator: public __sanitizer::SanitizerCommonDecorator {
  public:
   Decorator() : SanitizerCommonDecorator() { }
-  const char *Warning()    { return Red(); }
   const char *Origin()     { return Magenta(); }
   const char *Name()   { return Green(); }
-  const char *End()    { return Default(); }
 };
 
 static void DescribeStackOrigin(const char *so, uptr pc) {
   Decorator d;
   char *s = internal_strdup(so);
   char *sep = internal_strchr(s, '@');
   CHECK(sep);
   *sep = '\0';
   Printf("%s", d.Origin());
   Printf(
       "  %sUninitialized value was created by an allocation of '%s%s%s'"
       " in the stack frame of function '%s%s%s'%s\n",
       d.Origin(), d.Name(), s, d.Origin(), d.Name(), sep + 1, d.Origin(),
-      d.End());
+      d.Default());
   InternalFree(s);
 
   if (pc) {
     // For some reason function address in LLVM IR is 1 less then the address
     // of the first instruction.
     pc = StackTrace::GetNextInstructionPc(pc);
     StackTrace(&pc, 1).Print();
   }
 }
 
 static void DescribeOrigin(u32 id) {
   VPrintf(1, "  raw origin id: %d\n", id);
   Decorator d;
   Origin o = Origin::FromRawId(id);
   while (o.isChainedOrigin()) {
     StackTrace stack;
     o = o.getNextChainedOrigin(&stack);
     Printf("  %sUninitialized value was stored to memory at%s\n", d.Origin(),
-        d.End());
+           d.Default());
     stack.Print();
   }
   if (o.isStackOrigin()) {
     uptr pc;
     const char *so = GetStackOriginDescr(o.getStackId(), &pc);
     DescribeStackOrigin(so, pc);
   } else {
     StackTrace stack = o.getStackTraceForHeapOrigin();
     switch (stack.tag) {
       case StackTrace::TAG_ALLOC:
         Printf("  %sUninitialized value was created by a heap allocation%s\n",
-               d.Origin(), d.End());
+               d.Origin(), d.Default());
         break;
       case StackTrace::TAG_DEALLOC:
         Printf("  %sUninitialized value was created by a heap deallocation%s\n",
-               d.Origin(), d.End());
+               d.Origin(), d.Default());
         break;
       case STACK_TRACE_TAG_POISON:
         Printf("  %sMemory was marked as uninitialized%s\n", d.Origin(),
-               d.End());
+               d.Default());
         break;
       default:
-        Printf("  %sUninitialized value was created%s\n", d.Origin(), d.End());
+        Printf("  %sUninitialized value was created%s\n", d.Origin(),
+               d.Default());
         break;
     }
     stack.Print();
   }
 }
 
 void ReportUMR(StackTrace *stack, u32 origin) {
   if (!__msan::flags()->report_umrs) return;
 
   SpinMutexLock l(&CommonSanitizerReportMutex);
 
   Decorator d;
   Printf("%s", d.Warning());
   Report("WARNING: MemorySanitizer: use-of-uninitialized-value\n");
-  Printf("%s", d.End());
+  Printf("%s", d.Default());
   stack->Print();
   if (origin) {
     DescribeOrigin(origin);
   }
   ReportErrorSummary("use-of-uninitialized-value", stack);
 }
 
 void ReportExpectedUMRNotFound(StackTrace *stack) {

 
 void ReportAtExitStatistics() {
   SpinMutexLock l(&CommonSanitizerReportMutex);
 
   if (msan_report_count > 0) {
     Decorator d;
     Printf("%s", d.Warning());
     Printf("MemorySanitizer: %d warnings reported.\n", msan_report_count);
-    Printf("%s", d.End());
+    Printf("%s", d.Default());
   }
 }
 
 class OriginSet {
  public:
   OriginSet() : next_id_(0) {}
   int insert(u32 o) {
     // Scan from the end for better locality.
void DescribeMemoryRange(const void *x, uptr size) {
   bool with_origins = __msan_get_track_origins();
   // True if there is at least 1 poisoned bit in the last 4-byte group.
   bool last_quad_poisoned;
   int origin_ids[4];  // Single letter origin ids for the current line.
 
   Decorator d;
   Printf("%s", d.Warning());
   Printf("Shadow map of [%p, %p), %zu bytes:\n", start, end, end - start);
-  Printf("%s", d.End());
+  Printf("%s", d.Default());
   while (s < e) {
     // Line start.
     if (pos % 16 == 0) {
       for (int i = 0; i < 4; ++i) origin_ids[i] = -1;
       Printf("%p:", s);
     }
     // Group start.
     if (pos % 4 == 0) {

 }
 
 void ReportUMRInsideAddressRange(const char *what, const void *start, uptr size,
                                  uptr offset) {
   Decorator d;
   Printf("%s", d.Warning());
   Printf("%sUninitialized bytes in %s%s%s at offset %zu inside [%p, %zu)%s\n",
          d.Warning(), d.Name(), what, d.Warning(), offset, start, size,
-         d.End());
+         d.Default());
   if (__sanitizer::Verbosity())
     DescribeMemoryRange(start, size);
 }
 
 }  // namespace __msan

compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cc

 static void ReportStackOverflow(const SignalContext &sig, u32 tid,
                                 const BufferedStackTrace &stack) {
   SanitizerCommonDecorator d;
   Printf("%s", d.Warning());
   static const char kDescription[] = "stack-overflow";
   Report("ERROR: %s: %s on address %p (pc %p bp %p sp %p T%d)\n",
          SanitizerToolName, kDescription, (void *)sig.addr, (void *)sig.pc,
          (void *)sig.bp, (void *)sig.sp, tid);
-  Printf("%s", d.End());
+  Printf("%s", d.Default());
   stack.Print();
   ReportErrorSummary(kDescription, &stack);
 }
 
 void MaybeReportNonExecRegion(uptr pc) {
 #if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD
   MemoryMappingLayout proc_maps(/*cache_enabled*/ true);
   MemoryMappedSegment segment;
   while (proc_maps.Next(&segment)) {
     if (pc >= segment.start && pc < segment.end && !segment.IsExecutable())
       Report("Hint: PC is at a non-executable region. Maybe a wild jump?\n");
   }
 #endif
 }
 
 static void ReportNonStackOverflow(int signo, const SignalContext &sig, u32 tid,
                                    const BufferedStackTrace &stack) {
   SanitizerCommonDecorator d;
   Printf("%s", d.Warning());
   const char *description = __sanitizer::DescribeSignalOrException(signo);
   Report("ERROR: %s: %s on unknown address %p (pc %p bp %p sp %p T%d)\n",
          SanitizerToolName, description, (void *)sig.addr, (void *)sig.pc,
          (void *)sig.bp, (void *)sig.sp, tid);
-  Printf("%s", d.End());
+  Printf("%s", d.Default());
   if (sig.pc < GetPageSizeCached())
     Report("Hint: pc points to the zero page.\n");
   if (sig.is_memory_access) {
     const char *access_type =
         sig.write_flag == SignalContext::WRITE
             ? "WRITE"
             : (sig.write_flag == SignalContext::READ ? "READ" : "UNKNOWN");
     Report("The signal is caused by a %s memory access.\n", access_type);

compiler-rt/lib/sanitizer_common/sanitizer_report_decorator.h

 namespace __sanitizer {
 class SanitizerCommonDecorator {
   // FIXME: This is not portable. It assumes the special strings are printed to
   // stdout, which is not the case on Windows (see SetConsoleTextAttribute()).
  public:
   SanitizerCommonDecorator() : ansi_(ColorizeReports()) {}
   const char *Bold()    const { return ansi_ ? "\033[1m" : ""; }
   const char *Default() const { return ansi_ ? "\033[1m\033[0m"  : ""; }
-  const char *Warning()    { return Red(); }
-  const char *EndWarning() { return Default(); }
+  const char *Warning() const { return Red(); }
+
  protected:
   const char *Black()   const { return ansi_ ? "\033[1m\033[30m" : ""; }
   const char *Red()     const { return ansi_ ? "\033[1m\033[31m" : ""; }
   const char *Green()   const { return ansi_ ? "\033[1m\033[32m" : ""; }
   const char *Yellow()  const { return ansi_ ? "\033[1m\033[33m" : ""; }
   const char *Blue()    const { return ansi_ ? "\033[1m\033[34m" : ""; }
   const char *Magenta() const { return ansi_ ? "\033[1m\033[35m" : ""; }
   const char *Cyan()    const { return ansi_ ? "\033[1m\033[36m" : ""; }
   const char *White()   const { return ansi_ ? "\033[1m\033[37m" : ""; }
  private:
   bool ansi_;
 };
 
 }  // namespace __sanitizer
 
 #endif  // SANITIZER_REPORT_DECORATOR_H

compiler-rt/lib/tsan/rtl/tsan_report.cc

 ReportLocation *ReportLocation::New(ReportLocationType type) {
   void *mem = internal_alloc(MBlockReportStack, sizeof(ReportLocation));
   return new(mem) ReportLocation(type);
 }
 
 class Decorator: public __sanitizer::SanitizerCommonDecorator {
  public:
   Decorator() : SanitizerCommonDecorator() { }
-  const char *Warning()    { return Red(); }
-  const char *EndWarning() { return Default(); }
   const char *Access()     { return Blue(); }
-  const char *EndAccess()  { return Default(); }
   const char *ThreadDescription()    { return Cyan(); }
-  const char *EndThreadDescription() { return Default(); }
   const char *Location()   { return Green(); }
-  const char *EndLocation() { return Default(); }
   const char *Sleep()   { return Yellow(); }
-  const char *EndSleep() { return Default(); }
   const char *Mutex()   { return Magenta(); }
-  const char *EndMutex() { return Default(); }
 };
 
 ReportDesc::ReportDesc()
     : tag(kExternalTagNone)
     , stacks(MBlockReportStack)
     , mops(MBlockReportMop)
     , locs(MBlockReportLoc)
     , mutexes(MBlockReportMutex)
if (mop->external_tag == kExternalTagNone) {
     if (object_type == nullptr)
         object_type = "external object";
     Printf("  %s access of %s at %p by %s",
            ExternalMopDesc(first, mop->write), object_type,
            (void *)mop->addr, thread_name(thrbuf, mop->tid));
   }
   PrintMutexSet(mop->mset);
   Printf(":\n");
-  Printf("%s", d.EndAccess());
+  Printf("%s", d.Default());
   PrintStack(mop->stack);
 }
 
 static void PrintLocation(const ReportLocation *loc) {
   Decorator d;
   char thrbuf[kThreadBufSize];
   bool print_stack = false;
   Printf("%s", d.Location());
if (loc->type == ReportLocationGlobal) {
     Printf("  Location is stack of %s.\n\n", thread_name(thrbuf, loc->tid));
   } else if (loc->type == ReportLocationTLS) {
     Printf("  Location is TLS of %s.\n\n", thread_name(thrbuf, loc->tid));
   } else if (loc->type == ReportLocationFD) {
     Printf("  Location is file descriptor %d created by %s at:\n",
         loc->fd, thread_name(thrbuf, loc->tid));
     print_stack = true;
   }
-  Printf("%s", d.EndLocation());
+  Printf("%s", d.Default());
   if (print_stack)
     PrintStack(loc->stack);
 }
 
 static void PrintMutexShort(const ReportMutex *rm, const char *after) {
   Decorator d;
-  Printf("%sM%zd%s%s", d.Mutex(), rm->id, d.EndMutex(), after);
+  Printf("%sM%zd%s%s", d.Mutex(), rm->id, d.Default(), after);
 }
 
 static void PrintMutexShortWithAddress(const ReportMutex *rm,
                                        const char *after) {
   Decorator d;
-  Printf("%sM%zd (%p)%s%s", d.Mutex(), rm->id, rm->addr, d.EndMutex(), after);
+  Printf("%sM%zd (%p)%s%s", d.Mutex(), rm->id, rm->addr, d.Default(), after);
 }
 
 static void PrintMutex(const ReportMutex *rm) {
   Decorator d;
   if (rm->destroyed) {
     Printf("%s", d.Mutex());
     Printf("  Mutex M%llu is already destroyed.\n\n", rm->id);
-    Printf("%s", d.EndMutex());
+    Printf("%s", d.Default());
   } else {
     Printf("%s", d.Mutex());
     Printf("  Mutex M%llu (%p) created at:\n", rm->id, rm->addr);
-    Printf("%s", d.EndMutex());
+    Printf("%s", d.Default());
     PrintStack(rm->stack);
   }
 }
 
 static void PrintThread(const ReportThread *rt) {
   Decorator d;
   if (rt->id == 0)  // Little sense in describing the main thread.
     return;
   Printf("%s", d.ThreadDescription());
   Printf("  Thread T%d", rt->id);
   if (rt->name && rt->name[0] != '\0')
     Printf(" '%s'", rt->name);
   char thrbuf[kThreadBufSize];
   const char *thread_status = rt->running ? "running" : "finished";
   if (rt->workerthread) {
     Printf(" (tid=%zu, %s) is a GCD worker thread\n", rt->os_id, thread_status);
     Printf("\n");
-    Printf("%s", d.EndThreadDescription());
+    Printf("%s", d.Default());
     return;
   }
   Printf(" (tid=%zu, %s) created by %s", rt->os_id, thread_status,
          thread_name(thrbuf, rt->parent_tid));
   if (rt->stack)
     Printf(" at:");
   Printf("\n");
-  Printf("%s", d.EndThreadDescription());
+  Printf("%s", d.Default());
   PrintStack(rt->stack);
 }
 
 static void PrintSleep(const ReportStack *s) {
   Decorator d;
   Printf("%s", d.Sleep());
   Printf("  As if synchronized via sleep:\n");
-  Printf("%s", d.EndSleep());
+  Printf("%s", d.Default());
   PrintStack(s);
 }
 
 static ReportStack *ChooseSummaryStack(const ReportDesc *rep) {
   if (rep->mops.Size())
     return rep->mops[0]->stack;
   if (rep->stacks.Size())
     return rep->stacks[0];

 
 void PrintReport(const ReportDesc *rep) {
   Decorator d;
   Printf("==================\n");
   const char *rep_typ_str = ReportTypeString(rep->typ, rep->tag);
   Printf("%s", d.Warning());
   Printf("WARNING: ThreadSanitizer: %s (pid=%d)\n", rep_typ_str,
          (int)internal_getpid());
-  Printf("%s", d.EndWarning());
+  Printf("%s", d.Default());
 
   if (rep->typ == ReportTypeDeadlock) {
     char thrbuf[kThreadBufSize];
     Printf("  Cycle in lock order graph: ");
     for (uptr i = 0; i < rep->mutexes.Size(); i++)
       PrintMutexShortWithAddress(rep->mutexes[i], " => ");
     PrintMutexShort(rep->mutexes[0], "\n\n");
     CHECK_GT(rep->mutexes.Size(), 0U);
     CHECK_EQ(rep->mutexes.Size() * (flags()->second_deadlock_stack ? 2 : 1),
              rep->stacks.Size());
     for (uptr i = 0; i < rep->mutexes.Size(); i++) {
       Printf("  Mutex ");
       PrintMutexShort(rep->mutexes[(i + 1) % rep->mutexes.Size()],
                       " acquired here while holding mutex ");
       PrintMutexShort(rep->mutexes[i], " in ");
       Printf("%s", d.ThreadDescription());
       Printf("%s:\n", thread_name(thrbuf, rep->unique_tids[i]));
-      Printf("%s", d.EndThreadDescription());
+      Printf("%s", d.Default());
       if (flags()->second_deadlock_stack) {
         PrintStack(rep->stacks[2*i]);
         Printf("  Mutex ");
         PrintMutexShort(rep->mutexes[i],
                         " previously acquired by the same thread here:\n");
         PrintStack(rep->stacks[2*i+1]);
       } else {
         PrintStack(rep->stacks[i]);

compiler-rt/lib/ubsan/ubsan_diag.cc

static void MaybeReportErrorSummary(Location Loc, ErrorType Type) {
   ReportErrorSummary(ErrorKind, GetSanititizerToolName());
 }
 
 namespace {
 class Decorator : public SanitizerCommonDecorator {
  public:
   Decorator() : SanitizerCommonDecorator() {}
   const char *Highlight() const { return Green(); }
-  const char *EndHighlight() const { return Default(); }
   const char *Note() const { return Black(); }
-  const char *EndNote() const { return Default(); }
 };
 }
 
 SymbolizedStack *__ubsan::getSymbolizedLocation(uptr PC) {
   InitAsStandaloneIfNecessary();
   return Symbolizer::GetOrInit()->SymbolizePC(PC);
 }
 
for (uptr P = Min; P != Max; ++P) {
     if (InRange && InRange->getStart().getMemoryLocation() <= P)
       Byte = '~';
     if (P % 8 == 0)
       Buffer.append("%c", Pad);
     Buffer.append("%c", Pad);
     Buffer.append("%c", P == Loc ? '^' : Byte);
     Buffer.append("%c", Byte);
   }
-  Buffer.append("%s\n", Decor.EndHighlight());
+  Buffer.append("%s\n", Decor.Default());
 
   // Go over the line again, and print names for the ranges.
   InRange = 0;
   unsigned Spaces = 0;
   for (uptr P = Min; P != Max; ++P) {
     if (!InRange || InRange->getEnd().getMemoryLocation() == P)
       InRange = upperBound(P, Ranges, NumRanges);
     if (!InRange)
Diag::~Diag() {
   InternalScopedString Buffer(1024);
 
   Buffer.append(Decor.Bold());
   RenderLocation(&Buffer, Loc);
   Buffer.append(":");
 
   switch (Level) {
   case DL_Error:
-    Buffer.append("%s runtime error: %s%s", Decor.Warning(), Decor.EndWarning(),
+    Buffer.append("%s runtime error: %s%s", Decor.Warning(), Decor.Default(),
                   Decor.Bold());
     break;
 
   case DL_Note:
-    Buffer.append("%s note: %s", Decor.Note(), Decor.EndNote());
+    Buffer.append("%s note: %s", Decor.Note(), Decor.Default());
     break;
   }
 
   RenderText(&Buffer, Message, Args);
 
   Buffer.append("%s\n", Decor.Default());
   Printf("%s", Buffer.data());