Remove supalink

No longer required with 2010 builds, and not required (and doesn't-work-with)
ninja on 2008.

Deleted references to supalink here:
http://code.google.com/p/chromium/wiki/WindowsIncrementalLinking

R=thakis@chromium.orgo

BUG=140611


Review URL: https://chromiumcodereview.appspot.com/10832161

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@150151 0039d316-1c4b-4281-b951-d872f2087c98

build/common.gypi

@@ -703,7 +703,7 @@
 
     # Turn on Use Library Dependency Inputs for linking chrome.dll on Windows
     # to get incremental linking to be faster in debug builds.
-    'incremental_chrome_dll%': '<!(python <(DEPTH)/tools/win/supalink/check_installed.py)',
+    'incremental_chrome_dll%': '0',
 
     # This is the location of the sandbox binary. Chrome looks for this before
     # running the zygote process. If found, and SUID, it will be used to

tools/win/supalink/README

-Linker shim that enables the use of "Use Library Dependency Inputs" on
-large exe/dlls via Visual Studio.
-
-That flag is required to enable useful incremental linking, however, with a
-large number of objects in components, the linker fails with:
-
-...RSP00002E45885644.rsp : fatal error LNK1170: line in command file contains 131071 or more characters
-
-This seems to be that the IDE team didn't talk to the linker team; the
-response file can handle long commands, just all the files can't be on
-*one* line which is what the IDE generates.
-
-So, this program simply replaces link.exe, fixes the response file, and
-then shells to the original linker. Ridiculous? Yes. Faster links? Yes.
-
-Compile/install with install_supalink.py. Run from cmd.exe as Administrator,
-and make sure to run vsvars32.bat first.

tools/win/supalink/check_installed.py

-#!/usr/bin/env python
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import sys
-import os
-
-def main():
-  _winreg = None
-  if sys.platform == 'win32':
-    import _winreg
-  elif sys.platform == 'cygwin':
-    try:
-      import cygwinreg as _winreg
-    except ImportError:
-      pass  # If not available, be safe and write 0.
-
-  if not _winreg:
-    sys.stdout.write('0')
-    return 0
-
-  try:
-    val = _winreg.QueryValue(_winreg.HKEY_CURRENT_USER,
-                             'Software\\Chromium\\supalink_installed')
-    if os.path.exists(val):
-      # Apparently gyp thinks this means there was an error?
-      #sys.stderr.write('Supalink enabled.\n')
-      sys.stdout.write('1')
-      return 0
-  except WindowsError:
-    pass
-
-  sys.stdout.write('0')
-  return 0
-
-
-if __name__ == '__main__':
-  sys.exit(main())

tools/win/supalink/install_supalink.py

-#!/usr/bin/env python
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import os
-import shutil
-import subprocess
-import sys
-import tempfile
-
-if sys.platform == 'win32':
-  import _winreg
-elif sys.platform == 'cygwin':
-  try:
-    import cygwinreg as _winreg
-  except ImportError:
-    print "Please install cygwinreg so I can access the registry."
-    print "Install setuptools and run 'easy_install cygwinreg'."
-
-
-VSVARS_PATH = ('C:\\Program Files (x86)\\Microsoft Visual Studio 9.0\\'
-               'Common7\\Tools\\vsvars32.bat')
-
-
-def run_with_vsvars(cmd):
-  (fd, filename) = tempfile.mkstemp('.bat', text=True)
-  f = os.fdopen(fd, "w")
-  f.write('@echo off\n')
-  f.write('call "%s"\n' % VSVARS_PATH)
-  f.write(cmd + '\n')
-  f.close()
-  try:
-    p = subprocess.Popen([filename], shell=True, stdout=subprocess.PIPE,
-        universal_newlines=True)
-    out, err = p.communicate()
-    return p.returncode, out
-  finally:
-    os.unlink(filename)
-
-
-def get_vc_dir():
-  rc, out = run_with_vsvars('echo VCINSTALLDIR=%VCINSTALLDIR%')
-  for line in out.splitlines():
-    if line.startswith('VCINSTALLDIR='):
-      return line[len('VCINSTALLDIR='):]
-  return None
-
-
-def main():
-  vcdir = os.environ.get('VCINSTALLDIR')
-  if not vcdir:
-    vcdir = get_vc_dir()
-    if not vcdir:
-      print 'Couldn\'t get VCINSTALLDIR. Run vsvars32.bat?'
-      return 1
-    os.environ['PATH'] += (';' + os.path.join(vcdir, 'bin') +
-                           ';' + os.path.join(vcdir, '..\\Common7\\IDE'))
-
-  # Switch to our own dir.
-  os.chdir(os.path.dirname(os.path.abspath(__file__)))
-
-  # Verify that we can find link.exe.
-  link = os.path.join(vcdir, 'bin', 'link.exe')
-  link_backup = os.path.join(vcdir, 'bin', 'link.exe.supalink_orig.exe')
-  if not os.path.exists(link):
-    print 'link.exe not found at %s' % link
-    return 1
-
-  # Don't re-backup link.exe, so only copy link.exe to backup if it's
-  # not there already.
-  if not os.path.exists(link_backup):
-    try:
-      print 'Saving original link.exe...'
-      shutil.copyfile(link, link_backup)
-    except IOError:
-      print (('Wasn\'t able to back up %s to %s. '
-              'Not running with Administrator privileges?')
-              % (link, link_backup))
-      return 1
-
-  # Build supalink.exe but only if it's out of date.
-  cpptime = os.path.getmtime('supalink.cpp')
-  if (not os.path.exists('supalink.exe') or
-      cpptime > os.path.getmtime('supalink.exe')):
-    print 'Building supalink.exe...'
-    rc, out = run_with_vsvars('cl /nologo /Ox /Zi /W4 /WX /D_UNICODE /DUNICODE'
-                              ' /D_CRT_SECURE_NO_WARNINGS /EHsc supalink.cpp'
-                              ' /link /out:supalink.exe')
-    if rc:
-      print out
-      print 'Failed to build supalink.exe'
-      return 1
-
-  # Copy supalink into place if it's been updated since last time we ran.
-  exetime = os.path.getmtime('supalink.exe')
-  if exetime > os.path.getmtime(link):
-    print 'Copying supalink.exe over link.exe...'
-    try:
-      shutil.copyfile('supalink.exe', link)
-    except IOError:
-      print ('Wasn\'t able to copy supalink.exe over %s. '
-             'Not running with Administrator privileges?' % link)
-      return 1
-
-  _winreg.SetValue(_winreg.HKEY_CURRENT_USER,
-                   'Software\\Chromium\\supalink_installed',
-                   _winreg.REG_SZ,
-                   link_backup)
-
-  print 'Linker shim installed. Regenerate via gyp: "gclient runhooks".'
-  return 0
-
-
-if __name__ == '__main__':
-  sys.exit(main())

tools/win/supalink/supalink.cpp

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <windows.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <algorithm>
-#include <iterator>
-#include <string>
-
-using namespace std;
-
-// Don't use stderr for errors because VS has large buffers on them, leading
-// to confusing error output.
-static void Fatal(const wchar_t* msg) {
-  wprintf(L"supalink fatal error: %s\n", msg);
-  exit(1);
-}
-
-static wstring ErrorMessageToString(DWORD err) {
-  wchar_t* msg_buf = NULL;
-  DWORD rc = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
-                               FORMAT_MESSAGE_FROM_SYSTEM,
-                           NULL,
-                           err,
-                           MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-                           reinterpret_cast<LPTSTR>(&msg_buf),
-                           0,
-                           NULL);
-  if (!rc)
-    return L"unknown error";
-  wstring ret(msg_buf);
-  LocalFree(msg_buf);
-  return ret;
-}
-
-static const wchar_t* const g_search_for[] = {
-  L"link.exe\" ",
-  L"link\" ",
-  L"link.exe ",
-  L"link ",
-};
-
-static void Fallback(const wchar_t* msg = NULL) {
-  if (msg) {
-    wprintf(L"supalink failed (%s), trying to fallback to standard link.\n",
-            msg);
-    wprintf(L"Original command line: %s\n", GetCommandLine());
-    fflush(stdout);
-  }
-
-  STARTUPINFO startup_info = { sizeof(STARTUPINFO) };
-  PROCESS_INFORMATION process_info;
-  DWORD exit_code;
-
-  GetStartupInfo(&startup_info);
-
-  wstring orig_cmd(GetCommandLine());
-  wstring cmd;
-  wstring replace_with = L"link.exe.supalink_orig.exe";
-  wstring orig_lowercase;
-
-  // Avoid searching for case-variations by making a lower-case copy.
-  transform(orig_cmd.begin(),
-            orig_cmd.end(),
-            back_inserter(orig_lowercase),
-            tolower);
-
-  for (size_t i = 0; i < ARRAYSIZE(g_search_for); ++i) {
-    wstring linkexe = g_search_for[i];
-    wstring::size_type at = orig_lowercase.find(linkexe, 0);
-    if (at == wstring::npos)
-      continue;
-    if (linkexe[linkexe.size() - 2] == L'"')
-      replace_with += L"\" ";
-    else
-      replace_with += L" ";
-    cmd = orig_cmd.replace(at, linkexe.size(), replace_with);
-    break;
-  }
-  if (cmd == L"") {
-    wprintf(L"Original run '%s'\n", orig_cmd.c_str());
-    Fatal(L"Couldn't find link.exe (or similar) in command line");
-  }
-
-  if (getenv("SUPALINK_DEBUG")) {
-    wprintf(L"  running '%s'\n", cmd.c_str());
-    fflush(stdout);
-  }
-  if (!CreateProcess(NULL,
-                     reinterpret_cast<LPWSTR>(const_cast<wchar_t *>(
-                             cmd.c_str())),
-                     NULL,
-                     NULL,
-                     TRUE,
-                     0,
-                     NULL,
-                     NULL,
-                     &startup_info, &process_info)) {
-    wstring error = ErrorMessageToString(GetLastError());
-    Fatal(error.c_str());
-  }
-  CloseHandle(process_info.hThread);
-  WaitForSingleObject(process_info.hProcess, INFINITE);
-  GetExitCodeProcess(process_info.hProcess, &exit_code);
-  CloseHandle(process_info.hProcess);
-  exit(exit_code);
-}
-
-wstring SlurpFile(const wchar_t* path) {
-  FILE* f = _wfopen(path, L"rb, ccs=UNICODE");
-  if (!f) Fallback(L"couldn't read file");
-  fseek(f, 0, SEEK_END);
-  long len = ftell(f);
-  rewind(f);
-  wchar_t* data = reinterpret_cast<wchar_t*>(malloc(len));
-  fread(data, 1, len, f);
-  fclose(f);
-  wstring ret(data, len/sizeof(wchar_t));
-  free(data);
-  return ret;
-}
-
-void DumpFile(const wchar_t* path, wstring& contents) {
-  FILE* f = _wfopen(path, L"wb, ccs=UTF-16LE");
-  if (!f) Fallback(L"couldn't write file");
-
-  fwrite(contents.c_str(), sizeof(wchar_t), contents.size(), f);
-  if (ferror(f))
-    Fatal(L"failed during response rewrite");
-  fclose(f);
-}
-
-// Input command line is assumed to be of the form:
-//
-// link.exe @C:\src\...\RSP00003045884740.rsp /NOLOGO /ERRORREPORT:PROMPT
-//
-// Specifically, we parse & hack the contents of argv[1] and pass the rest
-// onwards.
-int wmain(int argc, wchar_t** argv) {
-  ULONGLONG start_time = 0, end_time;
-
-  int rsp_file_index = -1;
-
-  if (argc < 2)
-    Fallback(L"too few commmand line args");
-
-  for (int i = 1; i < argc; ++i) {
-    if (argv[i][0] == L'@') {
-      rsp_file_index = i;
-      break;
-    }
-  }
-
-  if (rsp_file_index == -1)
-    Fallback(L"couldn't find a response file in argv");
-
-  if (_wgetenv(L"SUPALINK_DEBUG"))
-    start_time = GetTickCount64();
-
-  wstring rsp = SlurpFile(&argv[rsp_file_index][1]);
-
-  // The first line of this file is all we try to fix. It's a bunch of
-  // quoted space separated items. Simplest thing seems to be replacing " "
-  // with "\n". So, just slurp the file, replace, spit it out to the same
-  // file and continue on our way.
-
-  // Took about .5s when using the naive .replace loop to replace " " with
-  // "\r\n" so write the silly loop instead.
-  wstring fixed;
-  fixed.reserve(rsp.size() * 2);
-
-  for (const wchar_t* s = rsp.c_str(); *s;) {
-    if (*s == '"' && *(s + 1) == ' ' && *(s + 2) == '"') {
-      fixed += L"\"\r\n\"";
-      s += 3;
-    } else {
-      fixed += *s++;
-    }
-  }
-
-  DumpFile(&argv[rsp_file_index][1], fixed);
-
-  if (_wgetenv(L"SUPALINK_DEBUG")) {
-    wstring backup_copy(&argv[rsp_file_index][1]);
-    backup_copy += L".copy";
-    DumpFile(backup_copy.c_str(), fixed);
-
-    end_time = GetTickCount64();
-
-    wprintf(L"  took %.2fs to modify @rsp file\n",
-            (end_time - start_time) / 1000.0);
-  }
-
-  Fallback();
-}