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Added examining memory locations (fix #64)
also added a way to run mi commands over unix domain sockets so other applications can communicate with code-debug
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WebFreak001
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Jul 23, 2016
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| import * as vscode from "vscode"; | ||
| import * as net from "net"; | ||
| import * as fs from "fs"; | ||
| import * as path from "path"; | ||
| import * as os from "os"; | ||
|
|
||
| export function activate(context: vscode.ExtensionContext) { | ||
| context.subscriptions.push(vscode.workspace.registerTextDocumentContentProvider("debugmemory", new MemoryContentProvider())); | ||
| context.subscriptions.push(vscode.commands.registerCommand("code-debug.examineMemoryLocation", examineMemory)); | ||
| } | ||
|
|
||
| var memoryLocationRegex = /^0x[0-9a-f]+$/; | ||
|
|
||
| function getMemoryRange(range: string) { | ||
| if (!range) | ||
| return undefined; | ||
| range = range.replace(/\s+/g, "").toLowerCase(); | ||
| var index; | ||
| if ((index = range.indexOf("+")) != -1) { | ||
| var from = range.substr(0, index); | ||
| var length = range.substr(index + 1); | ||
| if (!memoryLocationRegex.exec(from)) | ||
| return undefined; | ||
| if (memoryLocationRegex.exec(length)) | ||
| length = parseInt(length.substr(2), 16).toString(); | ||
| return "from=" + encodeURIComponent(from) + "&length=" + encodeURIComponent(length); | ||
| } | ||
| else if ((index = range.indexOf("-")) != -1) { | ||
| var from = range.substr(0, index); | ||
| var to = range.substr(index + 1); | ||
| if (!memoryLocationRegex.exec(from)) | ||
| return undefined; | ||
| if (!memoryLocationRegex.exec(to)) | ||
| return undefined; | ||
| return "from=" + encodeURIComponent(from) + "&to=" + encodeURIComponent(to); | ||
| } | ||
| else if (memoryLocationRegex.exec(range)) | ||
| return "at=" + encodeURIComponent(range); | ||
| else return undefined; | ||
| } | ||
|
|
||
| function examineMemory() { | ||
| let socketlists = path.join(os.tmpdir(), "code-debug-sockets"); | ||
| if (!fs.existsSync(socketlists)) | ||
| return vscode.window.showErrorMessage("No debugging sessions available"); | ||
| fs.readdir(socketlists, (err, files) => { | ||
| if (err) | ||
| return vscode.window.showErrorMessage("No debugging sessions available"); | ||
| var pickedFile = (file) => { | ||
| vscode.window.showInputBox({ placeHolder: "Memory Location or Range", validateInput: range => getMemoryRange(range) === undefined ? "Range must either be in format 0xF00-0xF01, 0xF100+32 or 0xABC154" : "" }).then(range => { | ||
| vscode.commands.executeCommand("vscode.previewHtml", vscode.Uri.parse("debugmemory://" + file + "#" + getMemoryRange(range))); | ||
| }); | ||
| }; | ||
| if (files.length == 1) | ||
| pickedFile(files[0]); | ||
| else if (files.length > 0) | ||
| vscode.window.showQuickPick(files, { placeHolder: "Running debugging instance" }).then(file => pickedFile(file)); | ||
| else | ||
| vscode.window.showErrorMessage("No debugging sessions available"); | ||
| }); | ||
| } | ||
|
|
||
| class MemoryContentProvider implements vscode.TextDocumentContentProvider { | ||
| provideTextDocumentContent(uri: vscode.Uri, token: vscode.CancellationToken): Thenable<string> { | ||
| return new Promise((resolve, reject) => { | ||
| var conn = net.connect(path.join(os.tmpdir(), "code-debug-sockets", uri.authority)); | ||
| var from, to; | ||
| var highlightAt = -1; | ||
| var splits = uri.fragment.split("&"); | ||
| if (splits[0].split("=")[0] == "at") { | ||
| var loc = parseInt(splits[0].split("=")[1].substr(2), 16); | ||
| highlightAt = 64; | ||
| from = Math.max(loc - 64, 0); | ||
| to = Math.max(loc + 768, 0); | ||
| } | ||
| else if (splits[0].split("=")[0] == "from") { | ||
| from = parseInt(splits[0].split("=")[1].substr(2), 16); | ||
| if (splits[1].split("=")[0] == "to") { | ||
| to = parseInt(splits[1].split("=")[1].substr(2), 16); | ||
| } | ||
| else if (splits[1].split("=")[0] == "length") { | ||
| to = from + parseInt(splits[1].split("=")[1]); | ||
| } | ||
| else return reject("Invalid Range"); | ||
| } | ||
| else return reject("Invalid Range"); | ||
| if (to < from) | ||
| return reject("Negative Range"); | ||
| conn.write("examineMemory " + JSON.stringify([from, to - from + 1])); | ||
| conn.once("data", data => { | ||
| var formattedCode = ""; | ||
| var hexString = data.toString(); | ||
| var x = 0; | ||
| var asciiLine = ""; | ||
| var byteNo = 0; | ||
| for (var i = 0; i < hexString.length; i += 2) { | ||
| var digit = hexString.substr(i, 2); | ||
| var digitNum = parseInt(digit, 16); | ||
| if (digitNum >= 32 && digitNum <= 126) | ||
| asciiLine += String.fromCharCode(digitNum); | ||
| else | ||
| asciiLine += "."; | ||
| if (highlightAt == byteNo) { | ||
| formattedCode += "<b>" + digit + "</b> "; | ||
| } else | ||
| formattedCode += digit + " "; | ||
| if (++x > 16) { | ||
| formattedCode += asciiLine + "\n"; | ||
| x = 0; | ||
| asciiLine = ""; | ||
| } | ||
| byteNo++; | ||
| } | ||
| if (x > 0) { | ||
| for (var i = 0; i <= 16 - x; i++) { | ||
| formattedCode += " "; | ||
| } | ||
| formattedCode += asciiLine; | ||
| } | ||
| resolve("<h2>Memory Range from 0x" + from.toString(16) + " to 0x" + to.toString(16) + "</h2><code><pre>" + formattedCode + "</pre></code>"); | ||
| conn.destroy(); | ||
| }); | ||
| }); | ||
| } | ||
| } |
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