[asan] Reify ErrorInvalidPointerPair

Summary: Continue work on PR30351

Reviewers: vitalybuka, kcc, eugenis

Subscribers: kubabrecka, llvm-commits

Differential Revision: https://reviews.llvm.org/D24554

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@281593 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 30 insertions, 13 deletions

diff --git a/lib/asan/asan_errors.cc b/lib/asan/asan_errors.cc
index 55481ff1b..b84773496 100644
--- a/lib/asan/asan_errors.cc
+++ b/lib/asan/asan_errors.cc
@@ -267,4 +267,17 @@ void ErrorODRViolation::Print() {
   ReportErrorSummary(error_msg.data());
 }
 
+void ErrorInvalidPointerPair::Print() {
+  const char *bug_type = "invalid-pointer-pair";
+  Decorator d;
+  Printf("%s", d.Warning());
+  Report("ERROR: AddressSanitizer: invalid-pointer-pair: %p %p\n", p1, p2);
+  Printf("%s", d.EndWarning());
+  GET_STACK_TRACE_FATAL(pc, bp);
+  stack.Print();
+  PrintAddressDescription(p1, 1, bug_type);
+  PrintAddressDescription(p2, 1, bug_type);
+  ReportErrorSummary(bug_type, &stack);
+}
+
 }  // namespace __asan
diff --git a/lib/asan/asan_errors.h b/lib/asan/asan_errors.h
index 5f02a71eb..57062dd0a 100644
--- a/lib/asan/asan_errors.h
+++ b/lib/asan/asan_errors.h
@@ -278,6 +278,17 @@ struct ErrorODRViolation : ErrorBase {
   void Print();
 };
 
+struct ErrorInvalidPointerPair : ErrorBase {
+  uptr pc, bp, sp, p1, p2;
+  // VS2013 doesn't implement unrestricted unions, so we need a trivial default
+  // constructor
+  ErrorInvalidPointerPair() = default;
+  ErrorInvalidPointerPair(u32 tid, uptr pc_, uptr bp_, uptr sp_, uptr p1_,
+                          uptr p2_)
+      : ErrorBase(tid), pc(pc_), bp(bp_), sp(sp_), p1(p1_), p2(p2_) {}
+  void Print();
+};
+
 // clang-format off
 #define ASAN_FOR_EACH_ERROR_KIND(macro)         \
   macro(StackOverflow)                          \
@@ -291,7 +302,8 @@ struct ErrorODRViolation : ErrorBase {
   macro(StringFunctionMemoryRangesOverlap)      \
   macro(StringFunctionSizeOverflow)             \
   macro(BadParamsToAnnotateContiguousContainer) \
-  macro(ODRViolation)
+  macro(ODRViolation)                           \
+  macro(InvalidPointerPair)
 // clang-format on
 
 #define ASAN_DEFINE_ERROR_KIND(name) kErrorKind##name,
diff --git a/lib/asan/asan_report.cc b/lib/asan/asan_report.cc
index 0f9ac1c51..f71b85c16 100644
--- a/lib/asan/asan_report.cc
+++ b/lib/asan/asan_report.cc
@@ -414,19 +414,11 @@ void ReportODRViolation(const __asan_global *g1, u32 stack_id1,
 }
 
 // ----------------------- CheckForInvalidPointerPair ----------- {{{1
-static NOINLINE void
-ReportInvalidPointerPair(uptr pc, uptr bp, uptr sp, uptr a1, uptr a2) {
+static NOINLINE void ReportInvalidPointerPair(uptr pc, uptr bp, uptr sp,
+                                              uptr a1, uptr a2) {
   ScopedInErrorReport in_report;
-  const char *bug_type = "invalid-pointer-pair";
-  Decorator d;
-  Printf("%s", d.Warning());
-  Report("ERROR: AddressSanitizer: invalid-pointer-pair: %p %p\n", a1, a2);
-  Printf("%s", d.EndWarning());
-  GET_STACK_TRACE_FATAL(pc, bp);
-  stack.Print();
-  PrintAddressDescription(a1, 1, bug_type);
-  PrintAddressDescription(a2, 1, bug_type);
-  ReportErrorSummary(bug_type, &stack);
+  ErrorInvalidPointerPair error(GetCurrentTidOrInvalid(), pc, bp, sp, a1, a2);
+  in_report.ReportError(error);
 }
 
 static INLINE void CheckForInvalidPointerPair(void *p1, void *p2) {