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// Author:
// Massimiliano Mantione (massi@ximian.com)
//
// (C) 2008 Novell, Inc http://www.novell.com
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.IO;
using System.Globalization;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text.RegularExpressions;
namespace Mono.Profiler {
public class NativeLibraryReader {
static string[] RunExternalProcess (string executableName, string arguments) {
Process p = new Process ();
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.FileName = executableName;
p.StartInfo.Arguments = arguments;
p.Start();
// Do not wait for the child process to exit before
// reading to the end of its redirected stream.
// p.WaitForExit ();
// Read the output stream first and then wait.
string output = p.StandardOutput.ReadToEnd ();
p.WaitForExit ();
string[] outputLines = output.Split ('\n');
return outputLines;
}
static Regex nmSymbolLine = new Regex ("([a-fA-F0-9]+)\\s([a-zA-Z])\\s(.*)$");
static Regex nmFileNotFound = new Regex ("(.*)nm:(.*)No such file$");
static Regex nmNoSymbols = new Regex ("(.*)nm:(.*)No symbols$");
static Regex nmUnknownProblem = new Regex ("(.*)nm:(.*)$");
public static void FillFunctions<MR,UFR> (MR region) where UFR : IUnmanagedFunctionFromRegion<UFR> where MR : IExecutableMemoryRegion <UFR> {
FillFunctionsUsingNm<MR,UFR> (region);
}
static void FillFunctionsUsingNm<MR,UFR> (MR region) where UFR : IUnmanagedFunctionFromRegion<UFR> where MR : IExecutableMemoryRegion <UFR> {
try {
string[] outputLines = RunExternalProcess ("/usr/bin/nm", "-n " + region.Name);
if (outputLines.Length == 1) {
Match m = nmFileNotFound.Match (outputLines [0]);
if (m.Success) {
return;
}
m = nmNoSymbols.Match (outputLines [0]);
if (m.Success || (outputLines [0].Length == 0)) {
outputLines = RunExternalProcess ("/usr/bin/nm", "-n -D " + region.Name);
if (outputLines.Length == 1) {
m = nmUnknownProblem.Match (outputLines [0]);
if (m.Success) {
return;
}
}
} else {
m = nmUnknownProblem.Match (outputLines [0]);
if (m.Success) {
return;
}
}
} else if (outputLines.Length == 0) {
outputLines = RunExternalProcess ("/usr/bin/nm", "-n -D " + region.Name);
}
IUnmanagedFunctionFromRegion<UFR> lastFunction = null;
foreach (string outputLine in outputLines) {
Match m = nmSymbolLine.Match (outputLine);
if (m.Success) {
ulong symbolOffset = (ulong) Int64.Parse (m.Groups [1].Value, NumberStyles.HexNumber);
String symbolType = m.Groups [2].Value;
String symbolName = m.Groups [3].Value;
if (symbolOffset >= region.StartAddress + region.FileOffset) {
symbolOffset -= region.StartAddress;
if (lastFunction != null) {
lastFunction.EndOffset = (uint) symbolOffset -1;
lastFunction = null;
}
if ((symbolType == "T") || (symbolType == "t")) {
lastFunction = region.NewFunction (symbolName, (uint) symbolOffset);
}
}
}
}
if (lastFunction != null) {
lastFunction.EndOffset = (uint) (region.EndAddress - region.StartAddress);
}
} catch (Exception e) {
Console.Error.WriteLine ("Exception: {0}", e.Message);
}
}
}
}
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