forked from OSchip/llvm-project
883 lines
32 KiB
C++
883 lines
32 KiB
C++
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//===-- JSONUtils.cpp -------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/FormatAdapters.h"
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#include "lldb/API/SBBreakpoint.h"
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#include "lldb/API/SBBreakpointLocation.h"
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#include "lldb/API/SBValue.h"
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#include "ExceptionBreakpoint.h"
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#include "JSONUtils.h"
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#include "LLDBUtils.h"
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#include "VSCode.h"
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namespace lldb_vscode {
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llvm::StringRef GetAsString(const llvm::json::Value &value) {
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if (auto s = value.getAsString())
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return *s;
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return llvm::StringRef();
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}
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// Gets a string from a JSON object using the key, or returns an empty string.
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llvm::StringRef GetString(const llvm::json::Object &obj, llvm::StringRef key) {
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if (auto value = obj.getString(key))
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return GetAsString(*value);
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return llvm::StringRef();
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}
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llvm::StringRef GetString(const llvm::json::Object *obj, llvm::StringRef key) {
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if (obj == nullptr)
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return llvm::StringRef();
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return GetString(*obj, key);
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}
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// Gets an unsigned integer from a JSON object using the key, or returns the
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// specified fail value.
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uint64_t GetUnsigned(const llvm::json::Object &obj, llvm::StringRef key,
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uint64_t fail_value) {
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if (auto value = obj.getInteger(key))
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return (uint64_t)*value;
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return fail_value;
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}
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uint64_t GetUnsigned(const llvm::json::Object *obj, llvm::StringRef key,
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uint64_t fail_value) {
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if (obj == nullptr)
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return fail_value;
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return GetUnsigned(*obj, key, fail_value);
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}
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bool GetBoolean(const llvm::json::Object &obj, llvm::StringRef key,
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bool fail_value) {
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if (auto value = obj.getBoolean(key))
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return *value;
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if (auto value = obj.getInteger(key))
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return *value != 0;
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return fail_value;
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}
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bool GetBoolean(const llvm::json::Object *obj, llvm::StringRef key,
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bool fail_value) {
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if (obj == nullptr)
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return fail_value;
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return GetBoolean(*obj, key, fail_value);
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}
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int64_t GetSigned(const llvm::json::Object &obj, llvm::StringRef key,
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int64_t fail_value) {
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if (auto value = obj.getInteger(key))
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return *value;
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return fail_value;
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}
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int64_t GetSigned(const llvm::json::Object *obj, llvm::StringRef key,
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int64_t fail_value) {
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if (obj == nullptr)
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return fail_value;
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return GetSigned(*obj, key, fail_value);
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}
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bool ObjectContainsKey(const llvm::json::Object &obj, llvm::StringRef key) {
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if (obj.find(key) != obj.end())
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return true;
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return false;
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}
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std::vector<std::string> GetStrings(const llvm::json::Object *obj,
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llvm::StringRef key) {
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std::vector<std::string> strs;
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auto json_array = obj->getArray(key);
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if (!json_array)
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return strs;
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for (const auto &value : *json_array) {
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switch (value.kind()) {
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case llvm::json::Value::String:
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strs.push_back(value.getAsString()->str());
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break;
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case llvm::json::Value::Number:
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case llvm::json::Value::Boolean: {
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std::string s;
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llvm::raw_string_ostream strm(s);
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strm << value;
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strs.push_back(strm.str());
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break;
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}
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case llvm::json::Value::Null:
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case llvm::json::Value::Object:
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case llvm::json::Value::Array:
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break;
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}
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}
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return strs;
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}
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void SetValueForKey(lldb::SBValue &v, llvm::json::Object &object,
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llvm::StringRef key) {
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llvm::StringRef value = v.GetValue();
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llvm::StringRef summary = v.GetSummary();
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llvm::StringRef type_name = v.GetType().GetDisplayTypeName();
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std::string result;
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llvm::raw_string_ostream strm(result);
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if (!value.empty()) {
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strm << value;
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if (!summary.empty())
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strm << ' ' << summary;
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} else if (!summary.empty()) {
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strm << ' ' << summary;
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} else if (!type_name.empty()) {
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strm << type_name;
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lldb::addr_t address = v.GetLoadAddress();
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if (address != LLDB_INVALID_ADDRESS)
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strm << " @ " << llvm::format_hex(address, 0);
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}
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strm.flush();
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object.try_emplace(key, result);
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}
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void FillResponse(const llvm::json::Object &request,
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llvm::json::Object &response) {
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// Fill in all of the needed response fields to a "request" and set "success"
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// to true by default.
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response.try_emplace("type", "response");
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response.try_emplace("seq", (int64_t)0);
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response.try_emplace("command", GetString(request, "command"));
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const int64_t seq = GetSigned(request, "seq", 0);
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response.try_emplace("request_seq", seq);
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response.try_emplace("success", true);
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}
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//----------------------------------------------------------------------
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// "Scope": {
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// "type": "object",
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// "description": "A Scope is a named container for variables. Optionally
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// a scope can map to a source or a range within a source.",
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// "properties": {
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// "name": {
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// "type": "string",
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// "description": "Name of the scope such as 'Arguments', 'Locals'."
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// },
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// "variablesReference": {
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// "type": "integer",
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// "description": "The variables of this scope can be retrieved by
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// passing the value of variablesReference to the
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// VariablesRequest."
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// },
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// "namedVariables": {
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// "type": "integer",
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// "description": "The number of named variables in this scope. The
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// client can use this optional information to present
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// the variables in a paged UI and fetch them in chunks."
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// },
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// "indexedVariables": {
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// "type": "integer",
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// "description": "The number of indexed variables in this scope. The
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// client can use this optional information to present
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// the variables in a paged UI and fetch them in chunks."
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// },
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// "expensive": {
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// "type": "boolean",
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// "description": "If true, the number of variables in this scope is
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// large or expensive to retrieve."
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// },
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// "source": {
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// "$ref": "#/definitions/Source",
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// "description": "Optional source for this scope."
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// },
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// "line": {
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// "type": "integer",
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// "description": "Optional start line of the range covered by this
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// scope."
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// },
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// "column": {
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// "type": "integer",
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// "description": "Optional start column of the range covered by this
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// scope."
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// },
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// "endLine": {
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// "type": "integer",
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// "description": "Optional end line of the range covered by this scope."
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// },
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// "endColumn": {
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// "type": "integer",
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// "description": "Optional end column of the range covered by this
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// scope."
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// }
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// },
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// "required": [ "name", "variablesReference", "expensive" ]
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// }
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//----------------------------------------------------------------------
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llvm::json::Value CreateScope(const llvm::StringRef name,
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int64_t variablesReference,
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int64_t namedVariables, bool expensive) {
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llvm::json::Object object;
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object.try_emplace("name", name.str());
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object.try_emplace("variablesReference", variablesReference);
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object.try_emplace("expensive", expensive);
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object.try_emplace("namedVariables", namedVariables);
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return llvm::json::Value(std::move(object));
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}
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//----------------------------------------------------------------------
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// "Breakpoint": {
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// "type": "object",
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// "description": "Information about a Breakpoint created in setBreakpoints
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// or setFunctionBreakpoints.",
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// "properties": {
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// "id": {
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// "type": "integer",
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// "description": "An optional unique identifier for the breakpoint."
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// },
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// "verified": {
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// "type": "boolean",
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// "description": "If true breakpoint could be set (but not necessarily
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// at the desired location)."
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// },
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// "message": {
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// "type": "string",
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// "description": "An optional message about the state of the breakpoint.
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// This is shown to the user and can be used to explain
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// why a breakpoint could not be verified."
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// },
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// "source": {
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// "$ref": "#/definitions/Source",
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// "description": "The source where the breakpoint is located."
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// },
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// "line": {
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// "type": "integer",
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// "description": "The start line of the actual range covered by the
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// breakpoint."
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// },
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// "column": {
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// "type": "integer",
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// "description": "An optional start column of the actual range covered
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// by the breakpoint."
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// },
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// "endLine": {
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// "type": "integer",
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// "description": "An optional end line of the actual range covered by
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// the breakpoint."
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// },
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// "endColumn": {
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// "type": "integer",
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// "description": "An optional end column of the actual range covered by
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// the breakpoint. If no end line is given, then the end
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// column is assumed to be in the start line."
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// }
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// },
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// "required": [ "verified" ]
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// }
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//----------------------------------------------------------------------
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llvm::json::Value CreateBreakpoint(lldb::SBBreakpointLocation &bp_loc) {
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// Each breakpoint location is treated as a separate breakpoint for VS code.
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// They don't have the notion of a single breakpoint with multiple locations.
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llvm::json::Object object;
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if (!bp_loc.IsValid())
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return llvm::json::Value(std::move(object));
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object.try_emplace("verified", true);
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const auto bp_id = bp_loc.GetBreakpoint().GetID();
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const auto vs_id = (int64_t)(((int64_t)bp_id << 32) | bp_loc.GetID());
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object.try_emplace("id", vs_id);
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auto bp_addr = bp_loc.GetAddress();
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if (bp_addr.IsValid()) {
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auto line_entry = bp_addr.GetLineEntry();
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const auto line = line_entry.GetLine();
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if (line != UINT32_MAX)
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object.try_emplace("line", line);
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object.try_emplace("source", CreateSource(line_entry));
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}
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return llvm::json::Value(std::move(object));
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}
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void AppendBreakpoint(lldb::SBBreakpoint &bp, llvm::json::Array &breakpoints) {
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if (!bp.IsValid())
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return;
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const auto num_locations = bp.GetNumLocations();
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if (num_locations == 0)
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return;
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for (size_t i = 0; i < num_locations; ++i) {
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auto bp_loc = bp.GetLocationAtIndex(i);
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breakpoints.emplace_back(CreateBreakpoint(bp_loc));
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}
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}
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//----------------------------------------------------------------------
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// "Event": {
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// "allOf": [ { "$ref": "#/definitions/ProtocolMessage" }, {
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// "type": "object",
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// "description": "Server-initiated event.",
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// "properties": {
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// "type": {
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// "type": "string",
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// "enum": [ "event" ]
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// },
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// "event": {
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// "type": "string",
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// "description": "Type of event."
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// },
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// "body": {
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// "type": [ "array", "boolean", "integer", "null", "number" ,
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// "object", "string" ],
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// "description": "Event-specific information."
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// }
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// },
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// "required": [ "type", "event" ]
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// }]
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// },
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// "ProtocolMessage": {
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// "type": "object",
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// "description": "Base class of requests, responses, and events.",
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// "properties": {
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// "seq": {
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// "type": "integer",
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// "description": "Sequence number."
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// },
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// "type": {
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// "type": "string",
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// "description": "Message type.",
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// "_enum": [ "request", "response", "event" ]
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// }
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// },
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// "required": [ "seq", "type" ]
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// }
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//----------------------------------------------------------------------
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llvm::json::Object CreateEvent(const llvm::StringRef event_name) {
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llvm::json::Object event;
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event.try_emplace("seq", 0);
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event.try_emplace("type", "event");
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event.try_emplace("event", event_name);
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return event;
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}
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//----------------------------------------------------------------------
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// "ExceptionBreakpointsFilter": {
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// "type": "object",
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// "description": "An ExceptionBreakpointsFilter is shown in the UI as an
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// option for configuring how exceptions are dealt with.",
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// "properties": {
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// "filter": {
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// "type": "string",
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// "description": "The internal ID of the filter. This value is passed
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// to the setExceptionBreakpoints request."
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|
// },
|
||
|
|
// "label": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The name of the filter. This will be shown in the UI."
|
||
|
|
// },
|
||
|
|
// "default": {
|
||
|
|
// "type": "boolean",
|
||
|
|
// "description": "Initial value of the filter. If not specified a value
|
||
|
|
// 'false' is assumed."
|
||
|
|
// }
|
||
|
|
// },
|
||
|
|
// "required": [ "filter", "label" ]
|
||
|
|
// }
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
llvm::json::Value
|
||
|
|
CreateExceptionBreakpointFilter(const ExceptionBreakpoint &bp) {
|
||
|
|
llvm::json::Object object;
|
||
|
|
object.try_emplace("filter", bp.filter);
|
||
|
|
object.try_emplace("label", bp.label);
|
||
|
|
object.try_emplace("default", bp.default_value);
|
||
|
|
return llvm::json::Value(std::move(object));
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// "Source": {
|
||
|
|
// "type": "object",
|
||
|
|
// "description": "A Source is a descriptor for source code. It is returned
|
||
|
|
// from the debug adapter as part of a StackFrame and it is
|
||
|
|
// used by clients when specifying breakpoints.",
|
||
|
|
// "properties": {
|
||
|
|
// "name": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The short name of the source. Every source returned
|
||
|
|
// from the debug adapter has a name. When sending a
|
||
|
|
// source to the debug adapter this name is optional."
|
||
|
|
// },
|
||
|
|
// "path": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The path of the source to be shown in the UI. It is
|
||
|
|
// only used to locate and load the content of the
|
||
|
|
// source if no sourceReference is specified (or its
|
||
|
|
// value is 0)."
|
||
|
|
// },
|
||
|
|
// "sourceReference": {
|
||
|
|
// "type": "number",
|
||
|
|
// "description": "If sourceReference > 0 the contents of the source must
|
||
|
|
// be retrieved through the SourceRequest (even if a path
|
||
|
|
// is specified). A sourceReference is only valid for a
|
||
|
|
// session, so it must not be used to persist a source."
|
||
|
|
// },
|
||
|
|
// "presentationHint": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "An optional hint for how to present the source in the
|
||
|
|
// UI. A value of 'deemphasize' can be used to indicate
|
||
|
|
// that the source is not available or that it is
|
||
|
|
// skipped on stepping.",
|
||
|
|
// "enum": [ "normal", "emphasize", "deemphasize" ]
|
||
|
|
// },
|
||
|
|
// "origin": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The (optional) origin of this source: possible values
|
||
|
|
// 'internal module', 'inlined content from source map',
|
||
|
|
// etc."
|
||
|
|
// },
|
||
|
|
// "sources": {
|
||
|
|
// "type": "array",
|
||
|
|
// "items": {
|
||
|
|
// "$ref": "#/definitions/Source"
|
||
|
|
// },
|
||
|
|
// "description": "An optional list of sources that are related to this
|
||
|
|
// source. These may be the source that generated this
|
||
|
|
// source."
|
||
|
|
// },
|
||
|
|
// "adapterData": {
|
||
|
|
// "type":["array","boolean","integer","null","number","object","string"],
|
||
|
|
// "description": "Optional data that a debug adapter might want to loop
|
||
|
|
// through the client. The client should leave the data
|
||
|
|
// intact and persist it across sessions. The client
|
||
|
|
// should not interpret the data."
|
||
|
|
// },
|
||
|
|
// "checksums": {
|
||
|
|
// "type": "array",
|
||
|
|
// "items": {
|
||
|
|
// "$ref": "#/definitions/Checksum"
|
||
|
|
// },
|
||
|
|
// "description": "The checksums associated with this file."
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
llvm::json::Value CreateSource(lldb::SBLineEntry &line_entry) {
|
||
|
|
llvm::json::Object object;
|
||
|
|
lldb::SBFileSpec file = line_entry.GetFileSpec();
|
||
|
|
if (file.IsValid()) {
|
||
|
|
const char *name = file.GetFilename();
|
||
|
|
if (name)
|
||
|
|
object.try_emplace("name", name);
|
||
|
|
char path[PATH_MAX] = "";
|
||
|
|
file.GetPath(path, sizeof(path));
|
||
|
|
if (path[0]) {
|
||
|
|
object.try_emplace("path", std::string(path));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return llvm::json::Value(std::move(object));
|
||
|
|
}
|
||
|
|
|
||
|
|
llvm::json::Value CreateSource(lldb::SBFrame &frame, int64_t &disasm_line) {
|
||
|
|
disasm_line = 0;
|
||
|
|
auto line_entry = frame.GetLineEntry();
|
||
|
|
if (line_entry.GetFileSpec().IsValid())
|
||
|
|
return CreateSource(line_entry);
|
||
|
|
|
||
|
|
llvm::json::Object object;
|
||
|
|
const auto pc = frame.GetPC();
|
||
|
|
|
||
|
|
lldb::SBInstructionList insts;
|
||
|
|
lldb::SBFunction function = frame.GetFunction();
|
||
|
|
lldb::addr_t low_pc = LLDB_INVALID_ADDRESS;
|
||
|
|
if (function.IsValid()) {
|
||
|
|
low_pc = function.GetStartAddress().GetLoadAddress(g_vsc.target);
|
||
|
|
auto addr_srcref = g_vsc.addr_to_source_ref.find(low_pc);
|
||
|
|
if (addr_srcref != g_vsc.addr_to_source_ref.end()) {
|
||
|
|
// We have this disassembly cached already, return the existing
|
||
|
|
// sourceReference
|
||
|
|
object.try_emplace("sourceReference", addr_srcref->second);
|
||
|
|
disasm_line = g_vsc.GetLineForPC(addr_srcref->second, pc);
|
||
|
|
} else {
|
||
|
|
insts = function.GetInstructions(g_vsc.target);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
lldb::SBSymbol symbol = frame.GetSymbol();
|
||
|
|
if (symbol.IsValid()) {
|
||
|
|
low_pc = symbol.GetStartAddress().GetLoadAddress(g_vsc.target);
|
||
|
|
auto addr_srcref = g_vsc.addr_to_source_ref.find(low_pc);
|
||
|
|
if (addr_srcref != g_vsc.addr_to_source_ref.end()) {
|
||
|
|
// We have this disassembly cached already, return the existing
|
||
|
|
// sourceReference
|
||
|
|
object.try_emplace("sourceReference", addr_srcref->second);
|
||
|
|
disasm_line = g_vsc.GetLineForPC(addr_srcref->second, pc);
|
||
|
|
} else {
|
||
|
|
insts = symbol.GetInstructions(g_vsc.target);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const auto num_insts = insts.GetSize();
|
||
|
|
if (low_pc != LLDB_INVALID_ADDRESS && num_insts > 0) {
|
||
|
|
object.try_emplace("name", frame.GetFunctionName());
|
||
|
|
SourceReference source;
|
||
|
|
llvm::raw_string_ostream src_strm(source.content);
|
||
|
|
std::string line;
|
||
|
|
for (size_t i = 0; i < num_insts; ++i) {
|
||
|
|
lldb::SBInstruction inst = insts.GetInstructionAtIndex(i);
|
||
|
|
const auto inst_addr = inst.GetAddress().GetLoadAddress(g_vsc.target);
|
||
|
|
const char *m = inst.GetMnemonic(g_vsc.target);
|
||
|
|
const char *o = inst.GetOperands(g_vsc.target);
|
||
|
|
const char *c = inst.GetComment(g_vsc.target);
|
||
|
|
if (pc == inst_addr)
|
||
|
|
disasm_line = i + 1;
|
||
|
|
const auto inst_offset = inst_addr - low_pc;
|
||
|
|
int spaces = 0;
|
||
|
|
if (inst_offset < 10)
|
||
|
|
spaces = 3;
|
||
|
|
else if (inst_offset < 100)
|
||
|
|
spaces = 2;
|
||
|
|
else if (inst_offset < 1000)
|
||
|
|
spaces = 1;
|
||
|
|
line.clear();
|
||
|
|
llvm::raw_string_ostream line_strm(line);
|
||
|
|
line_strm << llvm::formatv("{0:X+}: <{1}> {2} {3,12} {4}", inst_addr,
|
||
|
|
inst_offset, llvm::fmt_repeat(' ', spaces),
|
||
|
|
m, o);
|
||
|
|
const uint32_t comment_row = 60;
|
||
|
|
// If there is a comment append it starting at column 60
|
||
|
|
if (c && c[0]) {
|
||
|
|
if (line.size() < comment_row)
|
||
|
|
line_strm.indent(comment_row - line_strm.str().size());
|
||
|
|
line_strm << " # " << c;
|
||
|
|
}
|
||
|
|
src_strm << line_strm.str() << "\n";
|
||
|
|
source.addr_to_line[inst_addr] = i + 1;
|
||
|
|
}
|
||
|
|
// Flush the source stream
|
||
|
|
src_strm.str();
|
||
|
|
auto sourceReference = VSCode::GetNextSourceReference();
|
||
|
|
g_vsc.source_map[sourceReference] = std::move(source);
|
||
|
|
g_vsc.addr_to_source_ref[low_pc] = sourceReference;
|
||
|
|
object.try_emplace("sourceReference", sourceReference);
|
||
|
|
}
|
||
|
|
return llvm::json::Value(std::move(object));
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// "StackFrame": {
|
||
|
|
// "type": "object",
|
||
|
|
// "description": "A Stackframe contains the source location.",
|
||
|
|
// "properties": {
|
||
|
|
// "id": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "An identifier for the stack frame. It must be unique
|
||
|
|
// across all threads. This id can be used to retrieve
|
||
|
|
// the scopes of the frame with the 'scopesRequest' or
|
||
|
|
// to restart the execution of a stackframe."
|
||
|
|
// },
|
||
|
|
// "name": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The name of the stack frame, typically a method name."
|
||
|
|
// },
|
||
|
|
// "source": {
|
||
|
|
// "$ref": "#/definitions/Source",
|
||
|
|
// "description": "The optional source of the frame."
|
||
|
|
// },
|
||
|
|
// "line": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "The line within the file of the frame. If source is
|
||
|
|
// null or doesn't exist, line is 0 and must be ignored."
|
||
|
|
// },
|
||
|
|
// "column": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "The column within the line. If source is null or
|
||
|
|
// doesn't exist, column is 0 and must be ignored."
|
||
|
|
// },
|
||
|
|
// "endLine": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "An optional end line of the range covered by the
|
||
|
|
// stack frame."
|
||
|
|
// },
|
||
|
|
// "endColumn": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "An optional end column of the range covered by the
|
||
|
|
// stack frame."
|
||
|
|
// },
|
||
|
|
// "moduleId": {
|
||
|
|
// "type": ["integer", "string"],
|
||
|
|
// "description": "The module associated with this frame, if any."
|
||
|
|
// },
|
||
|
|
// "presentationHint": {
|
||
|
|
// "type": "string",
|
||
|
|
// "enum": [ "normal", "label", "subtle" ],
|
||
|
|
// "description": "An optional hint for how to present this frame in
|
||
|
|
// the UI. A value of 'label' can be used to indicate
|
||
|
|
// that the frame is an artificial frame that is used
|
||
|
|
// as a visual label or separator. A value of 'subtle'
|
||
|
|
// can be used to change the appearance of a frame in
|
||
|
|
// a 'subtle' way."
|
||
|
|
// }
|
||
|
|
// },
|
||
|
|
// "required": [ "id", "name", "line", "column" ]
|
||
|
|
// }
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
llvm::json::Value CreateStackFrame(lldb::SBFrame &frame) {
|
||
|
|
llvm::json::Object object;
|
||
|
|
int64_t frame_id = MakeVSCodeFrameID(frame);
|
||
|
|
object.try_emplace("id", frame_id);
|
||
|
|
object.try_emplace("name", frame.GetFunctionName());
|
||
|
|
int64_t disasm_line = 0;
|
||
|
|
object.try_emplace("source", CreateSource(frame, disasm_line));
|
||
|
|
|
||
|
|
auto line_entry = frame.GetLineEntry();
|
||
|
|
if (disasm_line > 0) {
|
||
|
|
object.try_emplace("line", disasm_line);
|
||
|
|
} else {
|
||
|
|
auto line = line_entry.GetLine();
|
||
|
|
if (line == UINT32_MAX)
|
||
|
|
line = 0;
|
||
|
|
object.try_emplace("line", line);
|
||
|
|
}
|
||
|
|
object.try_emplace("column", line_entry.GetColumn());
|
||
|
|
return llvm::json::Value(std::move(object));
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// "Thread": {
|
||
|
|
// "type": "object",
|
||
|
|
// "description": "A Thread",
|
||
|
|
// "properties": {
|
||
|
|
// "id": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "Unique identifier for the thread."
|
||
|
|
// },
|
||
|
|
// "name": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "A name of the thread."
|
||
|
|
// }
|
||
|
|
// },
|
||
|
|
// "required": [ "id", "name" ]
|
||
|
|
// }
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
llvm::json::Value CreateThread(lldb::SBThread &thread) {
|
||
|
|
llvm::json::Object object;
|
||
|
|
object.try_emplace("id", (int64_t)thread.GetThreadID());
|
||
|
|
char thread_str[64];
|
||
|
|
snprintf(thread_str, sizeof(thread_str), "Thread #%u", thread.GetIndexID());
|
||
|
|
const char *name = thread.GetName();
|
||
|
|
if (name) {
|
||
|
|
std::string thread_with_name(thread_str);
|
||
|
|
thread_with_name += ' ';
|
||
|
|
thread_with_name += name;
|
||
|
|
object.try_emplace("name", thread_with_name);
|
||
|
|
} else {
|
||
|
|
object.try_emplace("name", std::string(thread_str));
|
||
|
|
}
|
||
|
|
return llvm::json::Value(std::move(object));
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// "StoppedEvent": {
|
||
|
|
// "allOf": [ { "$ref": "#/definitions/Event" }, {
|
||
|
|
// "type": "object",
|
||
|
|
// "description": "Event message for 'stopped' event type. The event
|
||
|
|
// indicates that the execution of the debuggee has stopped
|
||
|
|
// due to some condition. This can be caused by a break
|
||
|
|
// point previously set, a stepping action has completed,
|
||
|
|
// by executing a debugger statement etc.",
|
||
|
|
// "properties": {
|
||
|
|
// "event": {
|
||
|
|
// "type": "string",
|
||
|
|
// "enum": [ "stopped" ]
|
||
|
|
// },
|
||
|
|
// "body": {
|
||
|
|
// "type": "object",
|
||
|
|
// "properties": {
|
||
|
|
// "reason": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The reason for the event. For backward
|
||
|
|
// compatibility this string is shown in the UI if
|
||
|
|
// the 'description' attribute is missing (but it
|
||
|
|
// must not be translated).",
|
||
|
|
// "_enum": [ "step", "breakpoint", "exception", "pause", "entry" ]
|
||
|
|
// },
|
||
|
|
// "description": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The full reason for the event, e.g. 'Paused
|
||
|
|
// on exception'. This string is shown in the UI
|
||
|
|
// as is."
|
||
|
|
// },
|
||
|
|
// "threadId": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "The thread which was stopped."
|
||
|
|
// },
|
||
|
|
// "text": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "Additional information. E.g. if reason is
|
||
|
|
// 'exception', text contains the exception name.
|
||
|
|
// This string is shown in the UI."
|
||
|
|
// },
|
||
|
|
// "allThreadsStopped": {
|
||
|
|
// "type": "boolean",
|
||
|
|
// "description": "If allThreadsStopped is true, a debug adapter
|
||
|
|
// can announce that all threads have stopped.
|
||
|
|
// The client should use this information to
|
||
|
|
// enable that all threads can be expanded to
|
||
|
|
// access their stacktraces. If the attribute
|
||
|
|
// is missing or false, only the thread with the
|
||
|
|
// given threadId can be expanded."
|
||
|
|
// }
|
||
|
|
// },
|
||
|
|
// "required": [ "reason" ]
|
||
|
|
// }
|
||
|
|
// },
|
||
|
|
// "required": [ "event", "body" ]
|
||
|
|
// }]
|
||
|
|
// }
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
llvm::json::Value CreateThreadStopped(lldb::SBThread &thread,
|
||
|
|
uint32_t stop_id) {
|
||
|
|
llvm::json::Object event(CreateEvent("stopped"));
|
||
|
|
llvm::json::Object body;
|
||
|
|
switch (thread.GetStopReason()) {
|
||
|
|
case lldb::eStopReasonTrace:
|
||
|
|
case lldb::eStopReasonPlanComplete:
|
||
|
|
body.try_emplace("reason", "step");
|
||
|
|
break;
|
||
|
|
case lldb::eStopReasonBreakpoint: {
|
||
|
|
ExceptionBreakpoint *exc_bp = g_vsc.GetExceptionBPFromStopReason(thread);
|
||
|
|
if (exc_bp) {
|
||
|
|
body.try_emplace("reason", "exception");
|
||
|
|
body.try_emplace("description", exc_bp->label);
|
||
|
|
} else {
|
||
|
|
body.try_emplace("reason", "breakpoint");
|
||
|
|
}
|
||
|
|
} break;
|
||
|
|
case lldb::eStopReasonWatchpoint:
|
||
|
|
case lldb::eStopReasonInstrumentation:
|
||
|
|
body.try_emplace("reason", "breakpoint");
|
||
|
|
break;
|
||
|
|
case lldb::eStopReasonSignal:
|
||
|
|
body.try_emplace("reason", "exception");
|
||
|
|
break;
|
||
|
|
case lldb::eStopReasonException:
|
||
|
|
body.try_emplace("reason", "exception");
|
||
|
|
break;
|
||
|
|
case lldb::eStopReasonExec:
|
||
|
|
body.try_emplace("reason", "entry");
|
||
|
|
break;
|
||
|
|
case lldb::eStopReasonThreadExiting:
|
||
|
|
case lldb::eStopReasonInvalid:
|
||
|
|
case lldb::eStopReasonNone:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (stop_id == 0)
|
||
|
|
body.try_emplace("reason", "entry");
|
||
|
|
const lldb::tid_t tid = thread.GetThreadID();
|
||
|
|
body.try_emplace("threadId", (int64_t)tid);
|
||
|
|
// If no description has been set, then set it to the default thread stopped
|
||
|
|
// description. If we have breakpoints that get hit and shouldn't be reported
|
||
|
|
// as breakpoints, then they will set the description above.
|
||
|
|
if (ObjectContainsKey(body, "description")) {
|
||
|
|
char description[1024];
|
||
|
|
if (thread.GetStopDescription(description, sizeof(description))) {
|
||
|
|
body.try_emplace("description", std::string(description));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (tid == g_vsc.focus_tid) {
|
||
|
|
body.try_emplace("threadCausedFocus", true);
|
||
|
|
}
|
||
|
|
body.try_emplace("preserveFocusHint", tid != g_vsc.focus_tid);
|
||
|
|
body.try_emplace("allThreadsStopped", true);
|
||
|
|
event.try_emplace("body", std::move(body));
|
||
|
|
return llvm::json::Value(std::move(event));
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// "Variable": {
|
||
|
|
// "type": "object",
|
||
|
|
// "description": "A Variable is a name/value pair. Optionally a variable
|
||
|
|
// can have a 'type' that is shown if space permits or when
|
||
|
|
// hovering over the variable's name. An optional 'kind' is
|
||
|
|
// used to render additional properties of the variable,
|
||
|
|
// e.g. different icons can be used to indicate that a
|
||
|
|
// variable is public or private. If the value is
|
||
|
|
// structured (has children), a handle is provided to
|
||
|
|
// retrieve the children with the VariablesRequest. If
|
||
|
|
// the number of named or indexed children is large, the
|
||
|
|
// numbers should be returned via the optional
|
||
|
|
// 'namedVariables' and 'indexedVariables' attributes. The
|
||
|
|
// client can use this optional information to present the
|
||
|
|
// children in a paged UI and fetch them in chunks.",
|
||
|
|
// "properties": {
|
||
|
|
// "name": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The variable's name."
|
||
|
|
// },
|
||
|
|
// "value": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The variable's value. This can be a multi-line text,
|
||
|
|
// e.g. for a function the body of a function."
|
||
|
|
// },
|
||
|
|
// "type": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "The type of the variable's value. Typically shown in
|
||
|
|
// the UI when hovering over the value."
|
||
|
|
// },
|
||
|
|
// "presentationHint": {
|
||
|
|
// "$ref": "#/definitions/VariablePresentationHint",
|
||
|
|
// "description": "Properties of a variable that can be used to determine
|
||
|
|
// how to render the variable in the UI."
|
||
|
|
// },
|
||
|
|
// "evaluateName": {
|
||
|
|
// "type": "string",
|
||
|
|
// "description": "Optional evaluatable name of this variable which can
|
||
|
|
// be passed to the 'EvaluateRequest' to fetch the
|
||
|
|
// variable's value."
|
||
|
|
// },
|
||
|
|
// "variablesReference": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "If variablesReference is > 0, the variable is
|
||
|
|
// structured and its children can be retrieved by
|
||
|
|
// passing variablesReference to the VariablesRequest."
|
||
|
|
// },
|
||
|
|
// "namedVariables": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "The number of named child variables. The client can
|
||
|
|
// use this optional information to present the children
|
||
|
|
// in a paged UI and fetch them in chunks."
|
||
|
|
// },
|
||
|
|
// "indexedVariables": {
|
||
|
|
// "type": "integer",
|
||
|
|
// "description": "The number of indexed child variables. The client
|
||
|
|
// can use this optional information to present the
|
||
|
|
// children in a paged UI and fetch them in chunks."
|
||
|
|
// }
|
||
|
|
// },
|
||
|
|
// "required": [ "name", "value", "variablesReference" ]
|
||
|
|
// }
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
llvm::json::Value CreateVariable(lldb::SBValue v, int64_t variablesReference,
|
||
|
|
int64_t varID, bool format_hex) {
|
||
|
|
llvm::json::Object object;
|
||
|
|
auto name = v.GetName();
|
||
|
|
object.try_emplace("name", name ? name : "<null>");
|
||
|
|
if (format_hex)
|
||
|
|
v.SetFormat(lldb::eFormatHex);
|
||
|
|
SetValueForKey(v, object, "value");
|
||
|
|
auto type_cstr = v.GetType().GetDisplayTypeName();
|
||
|
|
object.try_emplace("type", type_cstr ? type_cstr : NO_TYPENAME);
|
||
|
|
if (varID != INT64_MAX)
|
||
|
|
object.try_emplace("id", varID);
|
||
|
|
if (v.MightHaveChildren())
|
||
|
|
object.try_emplace("variablesReference", variablesReference);
|
||
|
|
else
|
||
|
|
object.try_emplace("variablesReference", (int64_t)0);
|
||
|
|
lldb::SBStream evaluateStream;
|
||
|
|
v.GetExpressionPath(evaluateStream);
|
||
|
|
const char *evaluateName = evaluateStream.GetData();
|
||
|
|
if (evaluateName && evaluateName[0])
|
||
|
|
object.try_emplace("evaluateName", std::string(evaluateName));
|
||
|
|
return llvm::json::Value(std::move(object));
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace lldb_vscode
|
||
|
|
|