aboutsummaryrefslogtreecommitdiff
path: root/externals/breakpad/src/common/language.cc
diff options
context:
space:
mode:
Diffstat (limited to 'externals/breakpad/src/common/language.cc')
-rw-r--r--externals/breakpad/src/common/language.cc223
1 files changed, 0 insertions, 223 deletions
diff --git a/externals/breakpad/src/common/language.cc b/externals/breakpad/src/common/language.cc
deleted file mode 100644
index 61693a8cd1..0000000000
--- a/externals/breakpad/src/common/language.cc
+++ /dev/null
@@ -1,223 +0,0 @@
-// Copyright 2010 Google LLC
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google LLC nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
-
-// language.cc: Subclasses and singletons for google_breakpad::Language.
-// See language.h for details.
-
-#ifdef HAVE_CONFIG_H
-#include <config.h> // Must come first
-#endif
-
-#include "common/language.h"
-
-#include <stdlib.h>
-#include <array>
-
-#if !defined(__ANDROID__)
-#include <cxxabi.h>
-#endif
-
-#if defined(HAVE_RUSTC_DEMANGLE)
-#include <rustc_demangle.h>
-#endif
-
-#include <limits>
-
-namespace {
-
-string MakeQualifiedNameWithSeparator(const string& parent_name,
- const char* separator,
- const string& name) {
- if (parent_name.empty()) {
- return name;
- }
-
- return parent_name + separator + name;
-}
-
-} // namespace
-
-namespace google_breakpad {
-
-// C++ language-specific operations.
-class CPPLanguage: public Language {
- public:
- CPPLanguage() {}
-
- string MakeQualifiedName(const string& parent_name,
- const string& name) const {
- return MakeQualifiedNameWithSeparator(parent_name, "::", name);
- }
-
- virtual DemangleResult DemangleName(const string& mangled,
- string* demangled) const {
-#if defined(__ANDROID__)
- // Android NDK doesn't provide abi::__cxa_demangle.
- demangled->clear();
- return kDontDemangle;
-#else
- // Attempting to demangle non-C++ symbols with the C++ demangler would print
- // warnings and fail, so return kDontDemangle for these.
- if (!IsMangledName(mangled)) {
- demangled->clear();
- return kDontDemangle;
- }
-
- int status;
- char* demangled_c =
- abi::__cxa_demangle(mangled.c_str(), NULL, NULL, &status);
-
- DemangleResult result;
- if (status == 0) {
- result = kDemangleSuccess;
- demangled->assign(demangled_c);
- } else {
- result = kDemangleFailure;
- demangled->clear();
- }
-
- if (demangled_c) {
- free(reinterpret_cast<void*>(demangled_c));
- }
-
- return result;
-#endif
- }
-
- private:
- static bool IsMangledName(const string& name) {
- // NOTE: For proper cross-compilation support, this should depend on target
- // binary's platform, not current build platform.
-#if defined(__APPLE__)
- // Mac C++ symbols can have up to 4 underscores, followed by a "Z".
- // Non-C++ symbols are not coded that way, but may have leading underscores.
- size_t i = name.find_first_not_of('_');
- return i > 0 && i != string::npos && i <= 4 && name[i] == 'Z';
-#else
- // Linux C++ symbols always start with "_Z".
- return name.size() > 2 && name[0] == '_' && name[1] == 'Z';
-#endif
- }
-};
-
-CPPLanguage CPPLanguageSingleton;
-
-// Java language-specific operations.
-class JavaLanguage: public Language {
- public:
- JavaLanguage() {}
-
- string MakeQualifiedName(const string& parent_name,
- const string& name) const {
- return MakeQualifiedNameWithSeparator(parent_name, ".", name);
- }
-};
-
-JavaLanguage JavaLanguageSingleton;
-
-// Swift language-specific operations.
-class SwiftLanguage: public Language {
- public:
- SwiftLanguage() {}
-
- string MakeQualifiedName(const string& parent_name,
- const string& name) const {
- return MakeQualifiedNameWithSeparator(parent_name, ".", name);
- }
-
- virtual DemangleResult DemangleName(const string& mangled,
- string* demangled) const {
- // There is no programmatic interface to a Swift demangler. Pass through the
- // mangled form because it encodes more information than the qualified name
- // that would have been built by MakeQualifiedName(). The output can be
- // post-processed by xcrun swift-demangle to transform mangled Swift names
- // into something more readable.
- demangled->assign(mangled);
- return kDemangleSuccess;
- }
-};
-
-SwiftLanguage SwiftLanguageSingleton;
-
-// Rust language-specific operations.
-class RustLanguage: public Language {
- public:
- RustLanguage() {}
-
- string MakeQualifiedName(const string& parent_name,
- const string& name) const {
- return MakeQualifiedNameWithSeparator(parent_name, ".", name);
- }
-
- virtual DemangleResult DemangleName(const string& mangled,
- string* demangled) const {
- // Rust names use GCC C++ name mangling, but demangling them with
- // abi_demangle doesn't produce stellar results due to them having
- // another layer of encoding.
- // If callers provide rustc-demangle, use that.
-#if defined(HAVE_RUSTC_DEMANGLE)
- std::array<char, 1 * 1024 * 1024> rustc_demangled;
- if (rustc_demangle(mangled.c_str(), rustc_demangled.data(),
- rustc_demangled.size()) == 0) {
- return kDemangleFailure;
- }
- demangled->assign(rustc_demangled.data());
-#else
- // Otherwise, pass through the mangled name so callers can demangle
- // after the fact.
- demangled->assign(mangled);
-#endif
- return kDemangleSuccess;
- }
-};
-
-RustLanguage RustLanguageSingleton;
-
-// Assembler language-specific operations.
-class AssemblerLanguage: public Language {
- public:
- AssemblerLanguage() {}
-
- bool HasFunctions() const { return false; }
- string MakeQualifiedName(const string& parent_name,
- const string& name) const {
- return name;
- }
-};
-
-AssemblerLanguage AssemblerLanguageSingleton;
-
-const Language * const Language::CPlusPlus = &CPPLanguageSingleton;
-const Language * const Language::Java = &JavaLanguageSingleton;
-const Language * const Language::Swift = &SwiftLanguageSingleton;
-const Language * const Language::Rust = &RustLanguageSingleton;
-const Language * const Language::Assembler = &AssemblerLanguageSingleton;
-
-} // namespace google_breakpad
generated by cgit v1.2.3 (git 2.39.1) at 2026-11-04 01:58:01 +0000