summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorTobias Markmann <tm@ayena.de>2018-03-20 13:12:10 (GMT)
committerTobias Markmann <tm@ayena.de>2018-03-20 14:48:04 (GMT)
commitf2c2c7d035029fb9615b42c18ccea83e8e705b10 (patch)
tree2f56fb77de0f366528395f21732d418f016f63b5 /3rdParty/Breakpad/src/common/language.cc
parent44581c5285d13c0ec715b35ddc79177e5ebeef39 (diff)
parent5ba3f18ad8efa040d49f36d83ec2e7891a9add9f (diff)
downloadswift-swift-5.0alpha2.zip
swift-swift-5.0alpha2.tar.bz2
Merge branch 'swift-4.x'swift-5.0alpha2
* swift-4.x: (44 commits) Test-Information: Builds on macOS 10.13.3 with clang trunk. Change-Id: If50381f103b0ad18d038b920d3d43537642141cb
Diffstat (limited to '3rdParty/Breakpad/src/common/language.cc')
-rw-r--r--3rdParty/Breakpad/src/common/language.cc130
1 files changed, 122 insertions, 8 deletions
diff --git a/3rdParty/Breakpad/src/common/language.cc b/3rdParty/Breakpad/src/common/language.cc
index c2fd81f..978fb85 100644
--- a/3rdParty/Breakpad/src/common/language.cc
+++ b/3rdParty/Breakpad/src/common/language.cc
@@ -34,18 +34,70 @@
#include "common/language.h"
+#include <stdlib.h>
+
+#if !defined(__ANDROID__)
+#include <cxxabi.h>
+#endif
+
+#if defined(HAVE_RUST_DEMANGLE)
+#include <rust_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 {
- if (parent_name.empty())
- return name;
- else
- return parent_name + "::" + name;
+ 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
+ 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
}
};
@@ -54,19 +106,79 @@ CPPLanguage CPPLanguageSingleton;
// Java language-specific operations.
class JavaLanguage: public Language {
public:
+ JavaLanguage() {}
+
string MakeQualifiedName(const string &parent_name,
const string &name) const {
- if (parent_name.empty())
- return name;
- else
- return parent_name + "." + name;
+ 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_RUST_DEMANGLE)
+ char* rust_demangled = rust_demangle(mangled.c_str());
+ if (rust_demangled == nullptr) {
+ return kDemangleFailure;
+ }
+ demangled->assign(rust_demangled);
+ free_rust_demangled_name(rust_demangled);
+#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 {
@@ -78,6 +190,8 @@ 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