Merge pull request #9613 from Kelebek1/demangle
Add stacktrace symbol demangling
This commit is contained in:
liamwhite
GitHub
commit
9705094a57
12 changed files with 6761 additions and 19 deletions
4
externals/CMakeLists.txt
vendored
4
externals/CMakeLists.txt
vendored
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@ -154,3 +154,7 @@ endif()
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if (YUZU_USE_EXTERNAL_VULKAN_HEADERS)
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add_subdirectory(Vulkan-Headers EXCLUDE_FROM_ALL)
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endif()
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add_library(demangle STATIC)
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target_include_directories(demangle PUBLIC ./demangle)
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target_sources(demangle PRIVATE demangle/ItaniumDemangle.cpp)
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104
externals/demangle/Demangle.h
vendored
Normal file
104
externals/demangle/Demangle.h
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Normal file
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@ -0,0 +1,104 @@
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//===--- Demangle.h ---------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-FileCopyrightText: Part of the LLVM Project
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEMANGLE_DEMANGLE_H
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#define LLVM_DEMANGLE_DEMANGLE_H
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#include <cstddef>
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#include <string>
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namespace llvm {
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/// This is a llvm local version of __cxa_demangle. Other than the name and
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/// being in the llvm namespace it is identical.
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///
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/// The mangled_name is demangled into buf and returned. If the buffer is not
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/// large enough, realloc is used to expand it.
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///
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/// The *status will be set to a value from the following enumeration
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enum : int {
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demangle_unknown_error = -4,
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demangle_invalid_args = -3,
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demangle_invalid_mangled_name = -2,
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demangle_memory_alloc_failure = -1,
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demangle_success = 0,
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};
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char *itaniumDemangle(const char *mangled_name, char *buf, size_t *n,
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int *status);
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enum MSDemangleFlags {
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MSDF_None = 0,
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MSDF_DumpBackrefs = 1 << 0,
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MSDF_NoAccessSpecifier = 1 << 1,
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MSDF_NoCallingConvention = 1 << 2,
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MSDF_NoReturnType = 1 << 3,
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MSDF_NoMemberType = 1 << 4,
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};
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char *microsoftDemangle(const char *mangled_name, char *buf, size_t *n,
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int *status, MSDemangleFlags Flags = MSDF_None);
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/// "Partial" demangler. This supports demangling a string into an AST
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/// (typically an intermediate stage in itaniumDemangle) and querying certain
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/// properties or partially printing the demangled name.
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struct ItaniumPartialDemangler {
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ItaniumPartialDemangler();
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ItaniumPartialDemangler(ItaniumPartialDemangler &&Other);
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ItaniumPartialDemangler &operator=(ItaniumPartialDemangler &&Other);
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/// Demangle into an AST. Subsequent calls to the rest of the member functions
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/// implicitly operate on the AST this produces.
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/// \return true on error, false otherwise
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bool partialDemangle(const char *MangledName);
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/// Just print the entire mangled name into Buf. Buf and N behave like the
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/// second and third parameters to itaniumDemangle.
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char *finishDemangle(char *Buf, size_t *N) const;
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/// Get the base name of a function. This doesn't include trailing template
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/// arguments, ie for "a::b<int>" this function returns "b".
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char *getFunctionBaseName(char *Buf, size_t *N) const;
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/// Get the context name for a function. For "a::b::c", this function returns
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/// "a::b".
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char *getFunctionDeclContextName(char *Buf, size_t *N) const;
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/// Get the entire name of this function.
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char *getFunctionName(char *Buf, size_t *N) const;
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/// Get the parameters for this function.
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char *getFunctionParameters(char *Buf, size_t *N) const;
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char *getFunctionReturnType(char *Buf, size_t *N) const;
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/// If this function has any any cv or reference qualifiers. These imply that
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/// the function is a non-static member function.
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bool hasFunctionQualifiers() const;
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/// If this symbol describes a constructor or destructor.
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bool isCtorOrDtor() const;
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/// If this symbol describes a function.
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bool isFunction() const;
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/// If this symbol describes a variable.
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bool isData() const;
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/// If this symbol is a <special-name>. These are generally implicitly
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/// generated by the implementation, such as vtables and typeinfo names.
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bool isSpecialName() const;
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~ItaniumPartialDemangler();
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private:
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void *RootNode;
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void *Context;
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};
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} // namespace llvm
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#endif
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93
externals/demangle/DemangleConfig.h
vendored
Normal file
93
externals/demangle/DemangleConfig.h
vendored
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@ -0,0 +1,93 @@
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//===--- DemangleConfig.h ---------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-FileCopyrightText: Part of the LLVM Project
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains a variety of feature test macros copied from
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// include/llvm/Support/Compiler.h so that LLVMDemangle does not need to take
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// a dependency on LLVMSupport.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEMANGLE_COMPILER_H
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#define LLVM_DEMANGLE_COMPILER_H
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#ifndef __has_feature
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#define __has_feature(x) 0
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#endif
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#ifndef __has_cpp_attribute
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#define __has_cpp_attribute(x) 0
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#endif
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#ifndef __has_attribute
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#define __has_attribute(x) 0
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#endif
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#ifndef __has_builtin
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#define __has_builtin(x) 0
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#endif
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#ifndef DEMANGLE_GNUC_PREREQ
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#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
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#define DEMANGLE_GNUC_PREREQ(maj, min, patch) \
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((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) + __GNUC_PATCHLEVEL__ >= \
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((maj) << 20) + ((min) << 10) + (patch))
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#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
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#define DEMANGLE_GNUC_PREREQ(maj, min, patch) \
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((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) >= ((maj) << 20) + ((min) << 10))
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#else
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#define DEMANGLE_GNUC_PREREQ(maj, min, patch) 0
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#endif
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#endif
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#if __has_attribute(used) || DEMANGLE_GNUC_PREREQ(3, 1, 0)
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#define DEMANGLE_ATTRIBUTE_USED __attribute__((__used__))
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#else
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#define DEMANGLE_ATTRIBUTE_USED
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#endif
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#if __has_builtin(__builtin_unreachable) || DEMANGLE_GNUC_PREREQ(4, 5, 0)
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#define DEMANGLE_UNREACHABLE __builtin_unreachable()
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#elif defined(_MSC_VER)
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#define DEMANGLE_UNREACHABLE __assume(false)
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#else
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#define DEMANGLE_UNREACHABLE
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#endif
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#if __has_attribute(noinline) || DEMANGLE_GNUC_PREREQ(3, 4, 0)
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#define DEMANGLE_ATTRIBUTE_NOINLINE __attribute__((noinline))
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#elif defined(_MSC_VER)
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#define DEMANGLE_ATTRIBUTE_NOINLINE __declspec(noinline)
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#else
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#define DEMANGLE_ATTRIBUTE_NOINLINE
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#endif
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#if !defined(NDEBUG)
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#define DEMANGLE_DUMP_METHOD DEMANGLE_ATTRIBUTE_NOINLINE DEMANGLE_ATTRIBUTE_USED
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#else
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#define DEMANGLE_DUMP_METHOD DEMANGLE_ATTRIBUTE_NOINLINE
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#endif
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#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough)
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#define DEMANGLE_FALLTHROUGH [[fallthrough]]
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#elif __has_cpp_attribute(gnu::fallthrough)
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#define DEMANGLE_FALLTHROUGH [[gnu::fallthrough]]
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#elif !__cplusplus
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// Workaround for llvm.org/PR23435, since clang 3.6 and below emit a spurious
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// error when __has_cpp_attribute is given a scoped attribute in C mode.
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#define DEMANGLE_FALLTHROUGH
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#elif __has_cpp_attribute(clang::fallthrough)
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#define DEMANGLE_FALLTHROUGH [[clang::fallthrough]]
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#else
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#define DEMANGLE_FALLTHROUGH
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#endif
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#define DEMANGLE_NAMESPACE_BEGIN namespace llvm { namespace itanium_demangle {
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#define DEMANGLE_NAMESPACE_END } }
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#endif
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588
externals/demangle/ItaniumDemangle.cpp
vendored
Normal file
588
externals/demangle/ItaniumDemangle.cpp
vendored
Normal file
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@ -0,0 +1,588 @@
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//===------------------------- ItaniumDemangle.cpp ------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-FileCopyrightText: Part of the LLVM Project
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// FIXME: (possibly) incomplete list of features that clang mangles that this
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// file does not yet support:
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// - C++ modules TS
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#include "Demangle.h"
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#include "ItaniumDemangle.h"
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#include <cassert>
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#include <cctype>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <functional>
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#include <numeric>
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#include <utility>
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#include <vector>
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using namespace llvm;
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using namespace llvm::itanium_demangle;
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constexpr const char *itanium_demangle::FloatData<float>::spec;
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constexpr const char *itanium_demangle::FloatData<double>::spec;
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constexpr const char *itanium_demangle::FloatData<long double>::spec;
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// <discriminator> := _ <non-negative number> # when number < 10
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// := __ <non-negative number> _ # when number >= 10
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// extension := decimal-digit+ # at the end of string
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const char *itanium_demangle::parse_discriminator(const char *first,
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const char *last) {
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// parse but ignore discriminator
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if (first != last) {
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if (*first == '_') {
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const char *t1 = first + 1;
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if (t1 != last) {
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if (std::isdigit(*t1))
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first = t1 + 1;
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else if (*t1 == '_') {
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for (++t1; t1 != last && std::isdigit(*t1); ++t1)
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;
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if (t1 != last && *t1 == '_')
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first = t1 + 1;
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}
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}
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} else if (std::isdigit(*first)) {
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const char *t1 = first + 1;
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for (; t1 != last && std::isdigit(*t1); ++t1)
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;
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if (t1 == last)
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first = last;
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}
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}
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return first;
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}
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#ifndef NDEBUG
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namespace {
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struct DumpVisitor {
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unsigned Depth = 0;
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bool PendingNewline = false;
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template<typename NodeT> static constexpr bool wantsNewline(const NodeT *) {
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return true;
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}
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static bool wantsNewline(NodeArray A) { return !A.empty(); }
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static constexpr bool wantsNewline(...) { return false; }
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template<typename ...Ts> static bool anyWantNewline(Ts ...Vs) {
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for (bool B : {wantsNewline(Vs)...})
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if (B)
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return true;
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return false;
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}
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void printStr(const char *S) { fprintf(stderr, "%s", S); }
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void print(StringView SV) {
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fprintf(stderr, "\"%.*s\"", (int)SV.size(), SV.begin());
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}
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void print(const Node *N) {
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if (N)
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N->visit(std::ref(*this));
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else
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printStr("<null>");
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}
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void print(NodeOrString NS) {
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if (NS.isNode())
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print(NS.asNode());
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else if (NS.isString())
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print(NS.asString());
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else
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printStr("NodeOrString()");
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}
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void print(NodeArray A) {
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++Depth;
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printStr("{");
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bool First = true;
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for (const Node *N : A) {
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if (First)
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print(N);
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else
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printWithComma(N);
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First = false;
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}
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printStr("}");
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--Depth;
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}
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// Overload used when T is exactly 'bool', not merely convertible to 'bool'.
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void print(bool B) { printStr(B ? "true" : "false"); }
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template <class T>
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typename std::enable_if<std::is_unsigned<T>::value>::type print(T N) {
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fprintf(stderr, "%llu", (unsigned long long)N);
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}
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template <class T>
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typename std::enable_if<std::is_signed<T>::value>::type print(T N) {
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fprintf(stderr, "%lld", (long long)N);
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}
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void print(ReferenceKind RK) {
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switch (RK) {
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case ReferenceKind::LValue:
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return printStr("ReferenceKind::LValue");
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case ReferenceKind::RValue:
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return printStr("ReferenceKind::RValue");
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}
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}
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void print(FunctionRefQual RQ) {
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switch (RQ) {
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case FunctionRefQual::FrefQualNone:
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return printStr("FunctionRefQual::FrefQualNone");
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case FunctionRefQual::FrefQualLValue:
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return printStr("FunctionRefQual::FrefQualLValue");
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case FunctionRefQual::FrefQualRValue:
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return printStr("FunctionRefQual::FrefQualRValue");
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}
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}
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void print(Qualifiers Qs) {
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if (!Qs) return printStr("QualNone");
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struct QualName { Qualifiers Q; const char *Name; } Names[] = {
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{QualConst, "QualConst"},
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{QualVolatile, "QualVolatile"},
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{QualRestrict, "QualRestrict"},
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};
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for (QualName Name : Names) {
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if (Qs & Name.Q) {
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printStr(Name.Name);
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Qs = Qualifiers(Qs & ~Name.Q);
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if (Qs) printStr(" | ");
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}
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}
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}
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void print(SpecialSubKind SSK) {
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switch (SSK) {
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case SpecialSubKind::allocator:
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return printStr("SpecialSubKind::allocator");
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case SpecialSubKind::basic_string:
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return printStr("SpecialSubKind::basic_string");
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case SpecialSubKind::string:
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return printStr("SpecialSubKind::string");
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case SpecialSubKind::istream:
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return printStr("SpecialSubKind::istream");
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case SpecialSubKind::ostream:
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return printStr("SpecialSubKind::ostream");
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case SpecialSubKind::iostream:
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return printStr("SpecialSubKind::iostream");
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}
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}
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void print(TemplateParamKind TPK) {
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switch (TPK) {
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case TemplateParamKind::Type:
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return printStr("TemplateParamKind::Type");
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case TemplateParamKind::NonType:
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return printStr("TemplateParamKind::NonType");
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case TemplateParamKind::Template:
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return printStr("TemplateParamKind::Template");
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}
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}
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void newLine() {
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printStr("\n");
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for (unsigned I = 0; I != Depth; ++I)
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printStr(" ");
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PendingNewline = false;
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}
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template<typename T> void printWithPendingNewline(T V) {
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print(V);
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if (wantsNewline(V))
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PendingNewline = true;
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}
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template<typename T> void printWithComma(T V) {
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if (PendingNewline || wantsNewline(V)) {
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printStr(",");
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newLine();
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} else {
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printStr(", ");
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}
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printWithPendingNewline(V);
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}
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struct CtorArgPrinter {
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DumpVisitor &Visitor;
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template<typename T, typename ...Rest> void operator()(T V, Rest ...Vs) {
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if (Visitor.anyWantNewline(V, Vs...))
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Visitor.newLine();
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Visitor.printWithPendingNewline(V);
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int PrintInOrder[] = { (Visitor.printWithComma(Vs), 0)..., 0 };
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(void)PrintInOrder;
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}
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};
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template<typename NodeT> void operator()(const NodeT *Node) {
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Depth += 2;
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fprintf(stderr, "%s(", itanium_demangle::NodeKind<NodeT>::name());
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Node->match(CtorArgPrinter{*this});
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fprintf(stderr, ")");
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Depth -= 2;
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}
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void operator()(const ForwardTemplateReference *Node) {
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Depth += 2;
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fprintf(stderr, "ForwardTemplateReference(");
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if (Node->Ref && !Node->Printing) {
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Node->Printing = true;
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CtorArgPrinter{*this}(Node->Ref);
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Node->Printing = false;
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} else {
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CtorArgPrinter{*this}(Node->Index);
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}
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fprintf(stderr, ")");
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Depth -= 2;
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}
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};
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}
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void itanium_demangle::Node::dump() const {
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DumpVisitor V;
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visit(std::ref(V));
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V.newLine();
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}
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#endif
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||||
namespace {
|
||||
class BumpPointerAllocator {
|
||||
struct BlockMeta {
|
||||
BlockMeta* Next;
|
||||
size_t Current;
|
||||
};
|
||||
|
||||
static constexpr size_t AllocSize = 4096;
|
||||
static constexpr size_t UsableAllocSize = AllocSize - sizeof(BlockMeta);
|
||||
|
||||
alignas(long double) char InitialBuffer[AllocSize];
|
||||
BlockMeta* BlockList = nullptr;
|
||||
|
||||
void grow() {
|
||||
char* NewMeta = static_cast<char *>(std::malloc(AllocSize));
|
||||
if (NewMeta == nullptr)
|
||||
std::terminate();
|
||||
BlockList = new (NewMeta) BlockMeta{BlockList, 0};
|
||||
}
|
||||
|
||||
void* allocateMassive(size_t NBytes) {
|
||||
NBytes += sizeof(BlockMeta);
|
||||
BlockMeta* NewMeta = reinterpret_cast<BlockMeta*>(std::malloc(NBytes));
|
||||
if (NewMeta == nullptr)
|
||||
std::terminate();
|
||||
BlockList->Next = new (NewMeta) BlockMeta{BlockList->Next, 0};
|
||||
return static_cast<void*>(NewMeta + 1);
|
||||
}
|
||||
|
||||
public:
|
||||
BumpPointerAllocator()
|
||||
: BlockList(new (InitialBuffer) BlockMeta{nullptr, 0}) {}
|
||||
|
||||
void* allocate(size_t N) {
|
||||
N = (N + 15u) & ~15u;
|
||||
if (N + BlockList->Current >= UsableAllocSize) {
|
||||
if (N > UsableAllocSize)
|
||||
return allocateMassive(N);
|
||||
grow();
|
||||
}
|
||||
BlockList->Current += N;
|
||||
return static_cast<void*>(reinterpret_cast<char*>(BlockList + 1) +
|
||||
BlockList->Current - N);
|
||||
}
|
||||
|
||||
void reset() {
|
||||
while (BlockList) {
|
||||
BlockMeta* Tmp = BlockList;
|
||||
BlockList = BlockList->Next;
|
||||
if (reinterpret_cast<char*>(Tmp) != InitialBuffer)
|
||||
std::free(Tmp);
|
||||
}
|
||||
BlockList = new (InitialBuffer) BlockMeta{nullptr, 0};
|
||||
}
|
||||
|
||||
~BumpPointerAllocator() { reset(); }
|
||||
};
|
||||
|
||||
class DefaultAllocator {
|
||||
BumpPointerAllocator Alloc;
|
||||
|
||||
public:
|
||||
void reset() { Alloc.reset(); }
|
||||
|
||||
template<typename T, typename ...Args> T *makeNode(Args &&...args) {
|
||||
return new (Alloc.allocate(sizeof(T)))
|
||||
T(std::forward<Args>(args)...);
|
||||
}
|
||||
|
||||
void *allocateNodeArray(size_t sz) {
|
||||
return Alloc.allocate(sizeof(Node *) * sz);
|
||||
}
|
||||
};
|
||||
} // unnamed namespace
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// Code beyond this point should not be synchronized with libc++abi.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
using Demangler = itanium_demangle::ManglingParser<DefaultAllocator>;
|
||||
|
||||
char *llvm::itaniumDemangle(const char *MangledName, char *Buf,
|
||||
size_t *N, int *Status) {
|
||||
if (MangledName == nullptr || (Buf != nullptr && N == nullptr)) {
|
||||
if (Status)
|
||||
*Status = demangle_invalid_args;
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
int InternalStatus = demangle_success;
|
||||
Demangler Parser(MangledName, MangledName + std::strlen(MangledName));
|
||||
OutputStream S;
|
||||
|
||||
Node *AST = Parser.parse();
|
||||
|
||||
if (AST == nullptr)
|
||||
InternalStatus = demangle_invalid_mangled_name;
|
||||
else if (!initializeOutputStream(Buf, N, S, 1024))
|
||||
InternalStatus = demangle_memory_alloc_failure;
|
||||
else {
|
||||
assert(Parser.ForwardTemplateRefs.empty());
|
||||
AST->print(S);
|
||||
S += '\0';
|
||||
if (N != nullptr)
|
||||
*N = S.getCurrentPosition();
|
||||
Buf = S.getBuffer();
|
||||
}
|
||||
|
||||
if (Status)
|
||||
*Status = InternalStatus;
|
||||
return InternalStatus == demangle_success ? Buf : nullptr;
|
||||
}
|
||||
|
||||
ItaniumPartialDemangler::ItaniumPartialDemangler()
|
||||
: RootNode(nullptr), Context(new Demangler{nullptr, nullptr}) {}
|
||||
|
||||
ItaniumPartialDemangler::~ItaniumPartialDemangler() {
|
||||
delete static_cast<Demangler *>(Context);
|
||||
}
|
||||
|
||||
ItaniumPartialDemangler::ItaniumPartialDemangler(
|
||||
ItaniumPartialDemangler &&Other)
|
||||
: RootNode(Other.RootNode), Context(Other.Context) {
|
||||
Other.Context = Other.RootNode = nullptr;
|
||||
}
|
||||
|
||||
ItaniumPartialDemangler &ItaniumPartialDemangler::
|
||||
operator=(ItaniumPartialDemangler &&Other) {
|
||||
std::swap(RootNode, Other.RootNode);
|
||||
std::swap(Context, Other.Context);
|
||||
return *this;
|
||||
}
|
||||
|
||||
// Demangle MangledName into an AST, storing it into this->RootNode.
|
||||
bool ItaniumPartialDemangler::partialDemangle(const char *MangledName) {
|
||||
Demangler *Parser = static_cast<Demangler *>(Context);
|
||||
size_t Len = std::strlen(MangledName);
|
||||
Parser->reset(MangledName, MangledName + Len);
|
||||
RootNode = Parser->parse();
|
||||
return RootNode == nullptr;
|
||||
}
|
||||
|
||||
static char *printNode(const Node *RootNode, char *Buf, size_t *N) {
|
||||
OutputStream S;
|
||||
if (!initializeOutputStream(Buf, N, S, 128))
|
||||
return nullptr;
|
||||
RootNode->print(S);
|
||||
S += '\0';
|
||||
if (N != nullptr)
|
||||
*N = S.getCurrentPosition();
|
||||
return S.getBuffer();
|
||||
}
|
||||
|
||||
char *ItaniumPartialDemangler::getFunctionBaseName(char *Buf, size_t *N) const {
|
||||
if (!isFunction())
|
||||
return nullptr;
|
||||
|
||||
const Node *Name = static_cast<const FunctionEncoding *>(RootNode)->getName();
|
||||
|
||||
while (true) {
|
||||
switch (Name->getKind()) {
|
||||
case Node::KAbiTagAttr:
|
||||
Name = static_cast<const AbiTagAttr *>(Name)->Base;
|
||||
continue;
|
||||
case Node::KStdQualifiedName:
|
||||
Name = static_cast<const StdQualifiedName *>(Name)->Child;
|
||||
continue;
|
||||
case Node::KNestedName:
|
||||
Name = static_cast<const NestedName *>(Name)->Name;
|
||||
continue;
|
||||
case Node::KLocalName:
|
||||
Name = static_cast<const LocalName *>(Name)->Entity;
|
||||
continue;
|
||||
case Node::KNameWithTemplateArgs:
|
||||
Name = static_cast<const NameWithTemplateArgs *>(Name)->Name;
|
||||
continue;
|
||||
default:
|
||||
return printNode(Name, Buf, N);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
char *ItaniumPartialDemangler::getFunctionDeclContextName(char *Buf,
|
||||
size_t *N) const {
|
||||
if (!isFunction())
|
||||
return nullptr;
|
||||
const Node *Name = static_cast<const FunctionEncoding *>(RootNode)->getName();
|
||||
|
||||
OutputStream S;
|
||||
if (!initializeOutputStream(Buf, N, S, 128))
|
||||
return nullptr;
|
||||
|
||||
KeepGoingLocalFunction:
|
||||
while (true) {
|
||||
if (Name->getKind() == Node::KAbiTagAttr) {
|
||||
Name = static_cast<const AbiTagAttr *>(Name)->Base;
|
||||
continue;
|
||||
}
|
||||
if (Name->getKind() == Node::KNameWithTemplateArgs) {
|
||||
Name = static_cast<const NameWithTemplateArgs *>(Name)->Name;
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
switch (Name->getKind()) {
|
||||
case Node::KStdQualifiedName:
|
||||
S += "std";
|
||||
break;
|
||||
case Node::KNestedName:
|
||||
static_cast<const NestedName *>(Name)->Qual->print(S);
|
||||
break;
|
||||
case Node::KLocalName: {
|
||||
auto *LN = static_cast<const LocalName *>(Name);
|
||||
LN->Encoding->print(S);
|
||||
S += "::";
|
||||
Name = LN->Entity;
|
||||
goto KeepGoingLocalFunction;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
S += '\0';
|
||||
if (N != nullptr)
|
||||
*N = S.getCurrentPosition();
|
||||
return S.getBuffer();
|
||||
}
|
||||
|
||||
char *ItaniumPartialDemangler::getFunctionName(char *Buf, size_t *N) const {
|
||||
if (!isFunction())
|
||||
return nullptr;
|
||||
auto *Name = static_cast<FunctionEncoding *>(RootNode)->getName();
|
||||
return printNode(Name, Buf, N);
|
||||
}
|
||||
|
||||
char *ItaniumPartialDemangler::getFunctionParameters(char *Buf,
|
||||
size_t *N) const {
|
||||
if (!isFunction())
|
||||
return nullptr;
|
||||
NodeArray Params = static_cast<FunctionEncoding *>(RootNode)->getParams();
|
||||
|
||||
OutputStream S;
|
||||
if (!initializeOutputStream(Buf, N, S, 128))
|
||||
return nullptr;
|
||||
|
||||
S += '(';
|
||||
Params.printWithComma(S);
|
||||
S += ')';
|
||||
S += '\0';
|
||||
if (N != nullptr)
|
||||
*N = S.getCurrentPosition();
|
||||
return S.getBuffer();
|
||||
}
|
||||
|
||||
char *ItaniumPartialDemangler::getFunctionReturnType(
|
||||
char *Buf, size_t *N) const {
|
||||
if (!isFunction())
|
||||
return nullptr;
|
||||
|
||||
OutputStream S;
|
||||
if (!initializeOutputStream(Buf, N, S, 128))
|
||||
return nullptr;
|
||||
|
||||
if (const Node *Ret =
|
||||
static_cast<const FunctionEncoding *>(RootNode)->getReturnType())
|
||||
Ret->print(S);
|
||||
|
||||
S += '\0';
|
||||
if (N != nullptr)
|
||||
*N = S.getCurrentPosition();
|
||||
return S.getBuffer();
|
||||
}
|
||||
|
||||
char *ItaniumPartialDemangler::finishDemangle(char *Buf, size_t *N) const {
|
||||
assert(RootNode != nullptr && "must call partialDemangle()");
|
||||
return printNode(static_cast<Node *>(RootNode), Buf, N);
|
||||
}
|
||||
|
||||
bool ItaniumPartialDemangler::hasFunctionQualifiers() const {
|
||||
assert(RootNode != nullptr && "must call partialDemangle()");
|
||||
if (!isFunction())
|
||||
return false;
|
||||
auto *E = static_cast<const FunctionEncoding *>(RootNode);
|
||||
return E->getCVQuals() != QualNone || E->getRefQual() != FrefQualNone;
|
||||
}
|
||||
|
||||
bool ItaniumPartialDemangler::isCtorOrDtor() const {
|
||||
const Node *N = static_cast<const Node *>(RootNode);
|
||||
while (N) {
|
||||
switch (N->getKind()) {
|
||||
default:
|
||||
return false;
|
||||
case Node::KCtorDtorName:
|
||||
return true;
|
||||
|
||||
case Node::KAbiTagAttr:
|
||||
N = static_cast<const AbiTagAttr *>(N)->Base;
|
||||
break;
|
||||
case Node::KFunctionEncoding:
|
||||
N = static_cast<const FunctionEncoding *>(N)->getName();
|
||||
break;
|
||||
case Node::KLocalName:
|
||||
N = static_cast<const LocalName *>(N)->Entity;
|
||||
break;
|
||||
case Node::KNameWithTemplateArgs:
|
||||
N = static_cast<const NameWithTemplateArgs *>(N)->Name;
|
||||
break;
|
||||
case Node::KNestedName:
|
||||
N = static_cast<const NestedName *>(N)->Name;
|
||||
break;
|
||||
case Node::KStdQualifiedName:
|
||||
N = static_cast<const StdQualifiedName *>(N)->Child;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
bool ItaniumPartialDemangler::isFunction() const {
|
||||
assert(RootNode != nullptr && "must call partialDemangle()");
|
||||
return static_cast<const Node *>(RootNode)->getKind() ==
|
||||
Node::KFunctionEncoding;
|
||||
}
|
||||
|
||||
bool ItaniumPartialDemangler::isSpecialName() const {
|
||||
assert(RootNode != nullptr && "must call partialDemangle()");
|
||||
auto K = static_cast<const Node *>(RootNode)->getKind();
|
||||
return K == Node::KSpecialName || K == Node::KCtorVtableSpecialName;
|
||||
}
|
||||
|
||||
bool ItaniumPartialDemangler::isData() const {
|
||||
return !isFunction() && !isSpecialName();
|
||||
}
|
||||
5582
externals/demangle/ItaniumDemangle.h
vendored
Normal file
5582
externals/demangle/ItaniumDemangle.h
vendored
Normal file
File diff suppressed because it is too large
Load diff
127
externals/demangle/StringView.h
vendored
Normal file
127
externals/demangle/StringView.h
vendored
Normal file
|
|
@ -0,0 +1,127 @@
|
|||
//===--- StringView.h -------------------------------------------*- C++ -*-===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-FileCopyrightText: Part of the LLVM Project
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// FIXME: Use std::string_view instead when we support C++17.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef DEMANGLE_STRINGVIEW_H
|
||||
#define DEMANGLE_STRINGVIEW_H
|
||||
|
||||
#include "DemangleConfig.h"
|
||||
#include <algorithm>
|
||||
#include <cassert>
|
||||
#include <cstring>
|
||||
|
||||
DEMANGLE_NAMESPACE_BEGIN
|
||||
|
||||
class StringView {
|
||||
const char *First;
|
||||
const char *Last;
|
||||
|
||||
public:
|
||||
static const size_t npos = ~size_t(0);
|
||||
|
||||
template <size_t N>
|
||||
StringView(const char (&Str)[N]) : First(Str), Last(Str + N - 1) {}
|
||||
StringView(const char *First_, const char *Last_)
|
||||
: First(First_), Last(Last_) {}
|
||||
StringView(const char *First_, size_t Len)
|
||||
: First(First_), Last(First_ + Len) {}
|
||||
StringView(const char *Str) : First(Str), Last(Str + std::strlen(Str)) {}
|
||||
StringView() : First(nullptr), Last(nullptr) {}
|
||||
|
||||
StringView substr(size_t From) const {
|
||||
return StringView(begin() + From, size() - From);
|
||||
}
|
||||
|
||||
size_t find(char C, size_t From = 0) const {
|
||||
size_t FindBegin = std::min(From, size());
|
||||
// Avoid calling memchr with nullptr.
|
||||
if (FindBegin < size()) {
|
||||
// Just forward to memchr, which is faster than a hand-rolled loop.
|
||||
if (const void *P = ::memchr(First + FindBegin, C, size() - FindBegin))
|
||||
return size_t(static_cast<const char *>(P) - First);
|
||||
}
|
||||
return npos;
|
||||
}
|
||||
|
||||
StringView substr(size_t From, size_t To) const {
|
||||
if (To >= size())
|
||||
To = size() - 1;
|
||||
if (From >= size())
|
||||
From = size() - 1;
|
||||
return StringView(First + From, First + To);
|
||||
}
|
||||
|
||||
StringView dropFront(size_t N = 1) const {
|
||||
if (N >= size())
|
||||
N = size();
|
||||
return StringView(First + N, Last);
|
||||
}
|
||||
|
||||
StringView dropBack(size_t N = 1) const {
|
||||
if (N >= size())
|
||||
N = size();
|
||||
return StringView(First, Last - N);
|
||||
}
|
||||
|
||||
char front() const {
|
||||
assert(!empty());
|
||||
return *begin();
|
||||
}
|
||||
|
||||
char back() const {
|
||||
assert(!empty());
|
||||
return *(end() - 1);
|
||||
}
|
||||
|
||||
char popFront() {
|
||||
assert(!empty());
|
||||
return *First++;
|
||||
}
|
||||
|
||||
bool consumeFront(char C) {
|
||||
if (!startsWith(C))
|
||||
return false;
|
||||
*this = dropFront(1);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool consumeFront(StringView S) {
|
||||
if (!startsWith(S))
|
||||
return false;
|
||||
*this = dropFront(S.size());
|
||||
return true;
|
||||
}
|
||||
|
||||
bool startsWith(char C) const { return !empty() && *begin() == C; }
|
||||
|
||||
bool startsWith(StringView Str) const {
|
||||
if (Str.size() > size())
|
||||
return false;
|
||||
return std::equal(Str.begin(), Str.end(), begin());
|
||||
}
|
||||
|
||||
const char &operator[](size_t Idx) const { return *(begin() + Idx); }
|
||||
|
||||
const char *begin() const { return First; }
|
||||
const char *end() const { return Last; }
|
||||
size_t size() const { return static_cast<size_t>(Last - First); }
|
||||
bool empty() const { return First == Last; }
|
||||
};
|
||||
|
||||
inline bool operator==(const StringView &LHS, const StringView &RHS) {
|
||||
return LHS.size() == RHS.size() &&
|
||||
std::equal(LHS.begin(), LHS.end(), RHS.begin());
|
||||
}
|
||||
|
||||
DEMANGLE_NAMESPACE_END
|
||||
|
||||
#endif
|
||||
192
externals/demangle/Utility.h
vendored
Normal file
192
externals/demangle/Utility.h
vendored
Normal file
|
|
@ -0,0 +1,192 @@
|
|||
//===--- Utility.h ----------------------------------------------*- C++ -*-===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-FileCopyrightText: Part of the LLVM Project
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Provide some utility classes for use in the demangler(s).
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef DEMANGLE_UTILITY_H
|
||||
#define DEMANGLE_UTILITY_H
|
||||
|
||||
#include "StringView.h"
|
||||
#include <cstdint>
|
||||
#include <cstdlib>
|
||||
#include <cstring>
|
||||
#include <iterator>
|
||||
#include <limits>
|
||||
|
||||
DEMANGLE_NAMESPACE_BEGIN
|
||||
|
||||
// Stream that AST nodes write their string representation into after the AST
|
||||
// has been parsed.
|
||||
class OutputStream {
|
||||
char *Buffer;
|
||||
size_t CurrentPosition;
|
||||
size_t BufferCapacity;
|
||||
|
||||
// Ensure there is at least n more positions in buffer.
|
||||
void grow(size_t N) {
|
||||
if (N + CurrentPosition >= BufferCapacity) {
|
||||
BufferCapacity *= 2;
|
||||
if (BufferCapacity < N + CurrentPosition)
|
||||
BufferCapacity = N + CurrentPosition;
|
||||
Buffer = static_cast<char *>(std::realloc(Buffer, BufferCapacity));
|
||||
if (Buffer == nullptr)
|
||||
std::terminate();
|
||||
}
|
||||
}
|
||||
|
||||
void writeUnsigned(uint64_t N, bool isNeg = false) {
|
||||
// Handle special case...
|
||||
if (N == 0) {
|
||||
*this << '0';
|
||||
return;
|
||||
}
|
||||
|
||||
char Temp[21];
|
||||
char *TempPtr = std::end(Temp);
|
||||
|
||||
while (N) {
|
||||
*--TempPtr = '0' + char(N % 10);
|
||||
N /= 10;
|
||||
}
|
||||
|
||||
// Add negative sign...
|
||||
if (isNeg)
|
||||
*--TempPtr = '-';
|
||||
this->operator<<(StringView(TempPtr, std::end(Temp)));
|
||||
}
|
||||
|
||||
public:
|
||||
OutputStream(char *StartBuf, size_t Size)
|
||||
: Buffer(StartBuf), CurrentPosition(0), BufferCapacity(Size) {}
|
||||
OutputStream() = default;
|
||||
void reset(char *Buffer_, size_t BufferCapacity_) {
|
||||
CurrentPosition = 0;
|
||||
Buffer = Buffer_;
|
||||
BufferCapacity = BufferCapacity_;
|
||||
}
|
||||
|
||||
/// If a ParameterPackExpansion (or similar type) is encountered, the offset
|
||||
/// into the pack that we're currently printing.
|
||||
unsigned CurrentPackIndex = std::numeric_limits<unsigned>::max();
|
||||
unsigned CurrentPackMax = std::numeric_limits<unsigned>::max();
|
||||
|
||||
OutputStream &operator+=(StringView R) {
|
||||
size_t Size = R.size();
|
||||
if (Size == 0)
|
||||
return *this;
|
||||
grow(Size);
|
||||
std::memmove(Buffer + CurrentPosition, R.begin(), Size);
|
||||
CurrentPosition += Size;
|
||||
return *this;
|
||||
}
|
||||
|
||||
OutputStream &operator+=(char C) {
|
||||
grow(1);
|
||||
Buffer[CurrentPosition++] = C;
|
||||
return *this;
|
||||
}
|
||||
|
||||
OutputStream &operator<<(StringView R) { return (*this += R); }
|
||||
|
||||
OutputStream &operator<<(char C) { return (*this += C); }
|
||||
|
||||
OutputStream &operator<<(long long N) {
|
||||
if (N < 0)
|
||||
writeUnsigned(static_cast<unsigned long long>(-N), true);
|
||||
else
|
||||
writeUnsigned(static_cast<unsigned long long>(N));
|
||||
return *this;
|
||||
}
|
||||
|
||||
OutputStream &operator<<(unsigned long long N) {
|
||||
writeUnsigned(N, false);
|
||||
return *this;
|
||||
}
|
||||
|
||||
OutputStream &operator<<(long N) {
|
||||
return this->operator<<(static_cast<long long>(N));
|
||||
}
|
||||
|
||||
OutputStream &operator<<(unsigned long N) {
|
||||
return this->operator<<(static_cast<unsigned long long>(N));
|
||||
}
|
||||
|
||||
OutputStream &operator<<(int N) {
|
||||
return this->operator<<(static_cast<long long>(N));
|
||||
}
|
||||
|
||||
OutputStream &operator<<(unsigned int N) {
|
||||
return this->operator<<(static_cast<unsigned long long>(N));
|
||||
}
|
||||
|
||||
size_t getCurrentPosition() const { return CurrentPosition; }
|
||||
void setCurrentPosition(size_t NewPos) { CurrentPosition = NewPos; }
|
||||
|
||||
char back() const {
|
||||
return CurrentPosition ? Buffer[CurrentPosition - 1] : '\0';
|
||||
}
|
||||
|
||||
bool empty() const { return CurrentPosition == 0; }
|
||||
|
||||
char *getBuffer() { return Buffer; }
|
||||
char *getBufferEnd() { return Buffer + CurrentPosition - 1; }
|
||||
size_t getBufferCapacity() { return BufferCapacity; }
|
||||
};
|
||||
|
||||
template <class T> class SwapAndRestore {
|
||||
T &Restore;
|
||||
T OriginalValue;
|
||||
bool ShouldRestore = true;
|
||||
|
||||
public:
|
||||
SwapAndRestore(T &Restore_) : SwapAndRestore(Restore_, Restore_) {}
|
||||
|
||||
SwapAndRestore(T &Restore_, T NewVal)
|
||||
: Restore(Restore_), OriginalValue(Restore) {
|
||||
Restore = std::move(NewVal);
|
||||
}
|
||||
~SwapAndRestore() {
|
||||
if (ShouldRestore)
|
||||
Restore = std::move(OriginalValue);
|
||||
}
|
||||
|
||||
void shouldRestore(bool ShouldRestore_) { ShouldRestore = ShouldRestore_; }
|
||||
|
||||
void restoreNow(bool Force) {
|
||||
if (!Force && !ShouldRestore)
|
||||
return;
|
||||
|
||||
Restore = std::move(OriginalValue);
|
||||
ShouldRestore = false;
|
||||
}
|
||||
|
||||
SwapAndRestore(const SwapAndRestore &) = delete;
|
||||
SwapAndRestore &operator=(const SwapAndRestore &) = delete;
|
||||
};
|
||||
|
||||
inline bool initializeOutputStream(char *Buf, size_t *N, OutputStream &S,
|
||||
size_t InitSize) {
|
||||
size_t BufferSize;
|
||||
if (Buf == nullptr) {
|
||||
Buf = static_cast<char *>(std::malloc(InitSize));
|
||||
if (Buf == nullptr)
|
||||
return false;
|
||||
BufferSize = InitSize;
|
||||
} else
|
||||
BufferSize = *N;
|
||||
|
||||
S.reset(Buf, BufferSize);
|
||||
return true;
|
||||
}
|
||||
|
||||
DEMANGLE_NAMESPACE_END
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue