================ @@ -0,0 +1,344 @@ +//===-- tysan.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 +// +//===----------------------------------------------------------------------===// +// +// This file is a part of TypeSanitizer. +// +// TypeSanitizer runtime. +//===----------------------------------------------------------------------===// + +#include "sanitizer_common/sanitizer_atomic.h" +#include "sanitizer_common/sanitizer_common.h" +#include "sanitizer_common/sanitizer_flag_parser.h" +#include "sanitizer_common/sanitizer_flags.h" +#include "sanitizer_common/sanitizer_libc.h" +#include "sanitizer_common/sanitizer_report_decorator.h" +#include "sanitizer_common/sanitizer_stacktrace.h" +#include "sanitizer_common/sanitizer_symbolizer.h" + +#include "tysan/tysan.h" + +using namespace __sanitizer; +using namespace __tysan; + +extern "C" SANITIZER_INTERFACE_ATTRIBUTE void +tysan_set_type_unknown(const void *addr, uptr size) { + if (tysan_inited) + internal_memset(shadow_for(addr), 0, size * sizeof(uptr)); +} + +extern "C" SANITIZER_INTERFACE_ATTRIBUTE void +tysan_copy_types(const void *daddr, const void *saddr, uptr size) { + if (tysan_inited) + internal_memmove(shadow_for(daddr), shadow_for(saddr), size * sizeof(uptr)); +} + +static const char *getDisplayName(const char *Name) { + if (Name[0] == '\0') + return "<anonymous type>"; + + // Clang generates tags for C++ types that demangle as typeinfo. Remove the + // prefix from the generated string. + const char TIPrefix[] = "typeinfo name for "; + + const char *DName = Symbolizer::GetOrInit()->Demangle(Name); + if (!internal_strncmp(DName, TIPrefix, sizeof(TIPrefix) - 1)) + DName += sizeof(TIPrefix) - 1; + + return DName; +} + +static void printTDName(tysan_type_descriptor *td) { + if (((sptr)td) <= 0) { + Printf("<unknown type>"); + return; + } + + switch (td->Tag) { + default: + DCHECK(0); + break; + case TYSAN_MEMBER_TD: + printTDName(td->Member.Access); + if (td->Member.Access != td->Member.Base) { + Printf(" (in "); + printTDName(td->Member.Base); + Printf(" at offset %zu)", td->Member.Offset); + } + break; + case TYSAN_STRUCT_TD: + Printf("%s", getDisplayName( + (char *)(td->Struct.Members + td->Struct.MemberCount))); + break; + } +} + +static tysan_type_descriptor *getRootTD(tysan_type_descriptor *TD) { + tysan_type_descriptor *RootTD = TD; + + do { + RootTD = TD; + + if (TD->Tag == TYSAN_STRUCT_TD) { + if (TD->Struct.MemberCount > 0) + TD = TD->Struct.Members[0].Type; + else + TD = nullptr; + } else if (TD->Tag == TYSAN_MEMBER_TD) { + TD = TD->Member.Access; + } else { + DCHECK(0); ---------------- fhahn wrote:
Done, thanks! https://github.com/llvm/llvm-project/pull/76261 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
