xpcom/base/nsMacUtilsImpl.cpp
author Tiberius Oros <toros@mozilla.com>
Wed, 03 Oct 2018 09:39:01 +0300
changeset 495073 d770ea2a1b257febbbbe07a38163d66bdc47e1fd
parent 495035 f61ec0f140c2839a5c24a04bbe99a76a24a0b9f5
child 496622 b9cfda58fed3180cac2c1c8d85c3724c6c7bb2e4
permissions -rw-r--r--
Backed out 5 changesets (bug 1431441) for failing devtools at client/debugger/new/test/mochitest/browser_dbg_rr_breakpoints-01.js on OSX opt a=backout Backed out changeset 94a1d1d67191 (bug 1431441) Backed out changeset be7ec7438701 (bug 1431441) Backed out changeset db6b7ee04187 (bug 1431441) Backed out changeset f61ec0f140c2 (bug 1431441) Backed out changeset ac51f86f5cac (bug 1431441)

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsMacUtilsImpl.h"

#include <CoreFoundation/CoreFoundation.h>

NS_IMPL_ISUPPORTS(nsMacUtilsImpl, nsIMacUtils)

nsresult
nsMacUtilsImpl::GetArchString(nsAString& aArchString)
{
  if (!mBinaryArchs.IsEmpty()) {
    aArchString.Assign(mBinaryArchs);
    return NS_OK;
  }

  aArchString.Truncate();

  bool foundPPC = false,
       foundX86 = false,
       foundPPC64 = false,
       foundX86_64 = false;

  CFBundleRef mainBundle = ::CFBundleGetMainBundle();
  if (!mainBundle) {
    return NS_ERROR_FAILURE;
  }

  CFArrayRef archList = ::CFBundleCopyExecutableArchitectures(mainBundle);
  if (!archList) {
    return NS_ERROR_FAILURE;
  }

  CFIndex archCount = ::CFArrayGetCount(archList);
  for (CFIndex i = 0; i < archCount; i++) {
    CFNumberRef arch =
      static_cast<CFNumberRef>(::CFArrayGetValueAtIndex(archList, i));

    int archInt = 0;
    if (!::CFNumberGetValue(arch, kCFNumberIntType, &archInt)) {
      ::CFRelease(archList);
      return NS_ERROR_FAILURE;
    }

    if (archInt == kCFBundleExecutableArchitecturePPC) {
      foundPPC = true;
    } else if (archInt == kCFBundleExecutableArchitectureI386) {
      foundX86 = true;
    } else if (archInt == kCFBundleExecutableArchitecturePPC64) {
      foundPPC64 = true;
    } else if (archInt == kCFBundleExecutableArchitectureX86_64) {
      foundX86_64 = true;
    }
  }

  ::CFRelease(archList);

  // The order in the string must always be the same so
  // don't do this in the loop.
  if (foundPPC) {
    mBinaryArchs.AppendLiteral("ppc");
  }

  if (foundX86) {
    if (!mBinaryArchs.IsEmpty()) {
      mBinaryArchs.Append('-');
    }
    mBinaryArchs.AppendLiteral("i386");
  }

  if (foundPPC64) {
    if (!mBinaryArchs.IsEmpty()) {
      mBinaryArchs.Append('-');
    }
    mBinaryArchs.AppendLiteral("ppc64");
  }

  if (foundX86_64) {
    if (!mBinaryArchs.IsEmpty()) {
      mBinaryArchs.Append('-');
    }
    mBinaryArchs.AppendLiteral("x86_64");
  }

  aArchString.Assign(mBinaryArchs);

  return (aArchString.IsEmpty() ? NS_ERROR_FAILURE : NS_OK);
}


NS_IMETHODIMP
nsMacUtilsImpl::GetArchitecturesInBinary(nsAString& aArchString)
{
  return GetArchString(aArchString);
}

// True when running under binary translation (Rosetta).
NS_IMETHODIMP
nsMacUtilsImpl::GetIsTranslated(bool* aIsTranslated)
{
#ifdef __ppc__
  static bool    sInitialized = false;

  // Initialize sIsNative to 1.  If the sysctl fails because it doesn't
  // exist, then translation is not possible, so the process must not be
  // running translated.
  static int32_t sIsNative = 1;

  if (!sInitialized) {
    size_t sz = sizeof(sIsNative);
    sysctlbyname("sysctl.proc_native", &sIsNative, &sz, nullptr, 0);
    sInitialized = true;
  }

  *aIsTranslated = !sIsNative;
#else
  // Translation only exists for ppc code.  Other architectures aren't
  // translated.
  *aIsTranslated = false;
#endif

  return NS_OK;
}