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Implement multi-byte project/platform symbols by filling out a table of addresses. Each symbol is "painted" into the table, replacing an existing entry if the new entry has higher priority. This allows us to handle overlapping entries, giving boosted priority to platform symbols that are defined in .sym65 files loaded later. The bounds on project/platform symbols are now rigidly defined. If the "nearby" feature is enabled, references to SYM-1 will be picked up, but we won't go hunting for SYM+1 unless the symbol is at least two bytes wide. The cost of adding a symbol to the symbol table is about the same, but we don't have a quick way to remove a symbol. Previously, if two platform symbols had the same value, the symbol with the alphabetically lowest label would win. Now, the symbol defined in the most-recently-loaded file wins. (If you define two symbols with the same value in the same file, it's still resolved alphabetically.) This allows the user to pick the winner by arranging the load order of the platform symbol files. Platform symbols now keep a reference to the file ident of the symbol file that defined them, so we can show the symbols's source in the Info panel. These changes altered the behavior of test 2008-address-changes, which includes some tests on external addresses that are close to labeled internal addresses. The previous behavior essentially treated user labels as being 3 bytes wide and extending outside the file bounds, which was mildly convenient on occasion but felt a little skanky. (We could do with a way to define external symbols relative to internal symbols, for things like the source address of code that gets relocated.) Also, re-enabled some unit tests. Also, added a bit of identifying stuff to CrashLog.txt.
79 lines
3.1 KiB
C#
79 lines
3.1 KiB
C#
/*
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* Copyright 2018 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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namespace CommonUtil {
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public static class Misc {
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/// <summary>
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/// Application identifier. This is an arbitrary string set by the application. It
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/// will be included in the crash dump.
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/// </summary>
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public static string AppIdent { get; set; } = "(app ident unset)";
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// Given a type, dump all namespaces found in the same assembly.
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// https://stackoverflow.com/a/1549216/294248
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public static void DumpNamespacesInAssembly(Type type) {
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Console.WriteLine("Assembly: " + type.Assembly.Location);
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Type[] typeList = type.Assembly.GetTypes();
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var namespaces = typeList.Select(t => t.Namespace).Distinct();
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foreach (string ns in namespaces) {
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Console.WriteLine(" " + ns);
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}
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}
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/// <summary>
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/// Writes an unhandled exception trace to a crash file.
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/// </summary>
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/// <remarks>
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/// Usage:
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/// AppDomain.CurrentDomain.UnhandledException +=
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/// new UnhandledExceptionEventHandler(CommonUtil.Misc.CrashReporter);
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///
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/// Thanks: https://stackoverflow.com/a/21308327/294248
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/// </remarks>
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public static void CrashReporter(object sender, UnhandledExceptionEventArgs e) {
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const string CRASH_PATH = @"CrashLog.txt";
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Exception ex = (Exception)e.ExceptionObject;
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Debug.WriteLine("CRASHING (term=" + e.IsTerminating + "): " + ex);
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try {
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using (StreamWriter writer = new StreamWriter(CRASH_PATH, true)) {
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writer.WriteLine("*** " + DateTime.Now.ToLocalTime() + " ***");
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writer.WriteLine(" App: " + AppIdent);
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writer.WriteLine(" OS: " +
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System.Runtime.InteropServices.RuntimeInformation.OSDescription);
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writer.WriteLine(string.Empty);
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while (ex != null) {
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writer.WriteLine(ex.GetType().FullName + ": " + ex.Message);
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writer.WriteLine("Trace:");
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writer.WriteLine(ex.StackTrace);
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writer.WriteLine(string.Empty);
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ex = ex.InnerException;
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}
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}
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} catch {
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// damn it
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Debug.WriteLine("Crashed while crashing");
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}
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}
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}
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}
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