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.

'use strict';

const {
  Array,
  ArrayIsArray,
  ArrayPrototypeForEach,
  MathFloor,
  MathMin,
  MathTrunc,
  NumberIsNaN,
  NumberMAX_SAFE_INTEGER,
  NumberMIN_SAFE_INTEGER,
  ObjectDefineProperties,
  ObjectDefineProperty,
  ObjectSetPrototypeOf,
  RegExpPrototypeSymbolReplace,
  StringPrototypeCharCodeAt,
  StringPrototypeSlice,
  StringPrototypeToLowerCase,
  StringPrototypeTrim,
  SymbolSpecies,
  SymbolToPrimitive,
  TypedArrayPrototypeGetBuffer,
  TypedArrayPrototypeGetByteLength,
  TypedArrayPrototypeGetByteOffset,
  TypedArrayPrototypeFill,
  TypedArrayPrototypeGetLength,
  TypedArrayPrototypeSet,
  TypedArrayPrototypeSlice,
  Uint8Array,
  Uint8ArrayPrototype,
} = primordials;

const {
  byteLengthUtf8,
  compare: _compare,
  compareOffset,
  createFromString,
  fill: bindingFill,
  isAscii: bindingIsAscii,
  isUtf8: bindingIsUtf8,
  indexOfBuffer,
  indexOfNumber,
  indexOfString,
  swap16: _swap16,
  swap32: _swap32,
  swap64: _swap64,
  kMaxLength,
  kStringMaxLength,
  atob: _atob,
  btoa: _btoa,
} = internalBinding('buffer');
const {
  constants: {
    ALL_PROPERTIES,
    ONLY_ENUMERABLE,
  },
  getOwnNonIndexProperties,
} = internalBinding('util');
const {
  customInspectSymbol,
  isInsideNodeModules,
  lazyDOMException,
  normalizeEncoding,
  kIsEncodingSymbol,
  defineLazyProperties,
  encodingsMap,
} = require('internal/util');
const {
  isAnyArrayBuffer,
  isArrayBufferView,
  isUint8Array,
  isTypedArray,
} = require('internal/util/types');
const {
  inspect: utilInspect,
} = require('internal/util/inspect');

const {
  codes: {
    ERR_BUFFER_OUT_OF_BOUNDS,
    ERR_INVALID_ARG_TYPE,
    ERR_INVALID_ARG_VALUE,
    ERR_INVALID_BUFFER_SIZE,
    ERR_OUT_OF_RANGE,
    ERR_MISSING_ARGS,
    ERR_UNKNOWN_ENCODING,
  },
  genericNodeError,
} = require('internal/errors');
const {
  validateArray,
  validateBuffer,
  validateInteger,
  validateNumber,
  validateString,
} = require('internal/validators');
// Provide validateInteger() but with kMaxLength as the default maximum value.
const validateOffset = (value, name, min = 0, max = kMaxLength) =>
  validateInteger(value, name, min, max);

const {
  FastBuffer,
  markAsUntransferable,
  addBufferPrototypeMethods,
  createUnsafeBuffer,
} = require('internal/buffer');

FastBuffer.prototype.constructor = Buffer;
Buffer.prototype = FastBuffer.prototype;
addBufferPrototypeMethods(Buffer.prototype);

const constants = ObjectDefineProperties({}, {
  MAX_LENGTH: {
    __proto__: null,
    value: kMaxLength,
    writable: false,
    enumerable: true,
  },
  MAX_STRING_LENGTH: {
    __proto__: null,
    value: kStringMaxLength,
    writable: false,
    enumerable: true,
  },
});

Buffer.poolSize = 8 * 1024;
let poolSize, poolOffset, allocPool;

function createPool() {
  poolSize = Buffer.poolSize;
  allocPool = createUnsafeBuffer(poolSize).buffer;
  markAsUntransferable(allocPool);
  poolOffset = 0;
}
createPool();

function alignPool() {
  // Ensure aligned slices
  if (poolOffset & 0x7) {
    poolOffset |= 0x7;
    poolOffset++;
  }
}

let bufferWarningAlreadyEmitted = false;
let nodeModulesCheckCounter = 0;
const bufferWarning = 'Buffer() is deprecated due to security and usability ' +
                      'issues. Please use the Buffer.alloc(), ' +
                      'Buffer.allocUnsafe(), or Buffer.from() methods instead.';

function showFlaggedDeprecation() {
  if (bufferWarningAlreadyEmitted ||
      ++nodeModulesCheckCounter > 10000 ||
      (!require('internal/options').getOptionValue('--pending-deprecation') &&
       isInsideNodeModules())) {
    // We don't emit a warning, because we either:
    // - Already did so, or
    // - Already checked too many times whether a call is coming
    //   from node_modules and want to stop slowing down things, or
    // - We aren't running with `--pending-deprecation` enabled,
    //   and the code is inside `node_modules`.
    return;
  }

  process.emitWarning(bufferWarning, 'DeprecationWarning', 'DEP0005');
  bufferWarningAlreadyEmitted = true;
}

function toInteger(n, defaultVal) {
  n = +n;
  if (!NumberIsNaN(n) &&
      n >= NumberMIN_SAFE_INTEGER &&
      n <= NumberMAX_SAFE_INTEGER) {
    return ((n % 1) === 0 ? n : MathFloor(n));
  }
  return defaultVal;
}

function _copy(source, target, targetStart, sourceStart, sourceEnd) {
  if (!isUint8Array(source))
    throw new ERR_INVALID_ARG_TYPE('source', ['Buffer', 'Uint8Array'], source);
  if (!isUint8Array(target))
    throw new ERR_INVALID_ARG_TYPE('target', ['Buffer', 'Uint8Array'], target);

  if (targetStart === undefined) {
    targetStart = 0;
  } else {
    targetStart = toInteger(targetStart, 0);
    if (targetStart < 0)
      throw new ERR_OUT_OF_RANGE('targetStart', '>= 0', targetStart);
  }

  if (sourceStart === undefined) {
    sourceStart = 0;
  } else {
    sourceStart = toInteger(sourceStart, 0);
    if (sourceStart < 0 || sourceStart > source.length)
      throw new ERR_OUT_OF_RANGE('sourceStart', `>= 0 && <= ${source.length}`, sourceStart);
  }

  if (sourceEnd === undefined) {
    sourceEnd = source.length;
  } else {
    sourceEnd = toInteger(sourceEnd, 0);
    if (sourceEnd < 0)
      throw new ERR_OUT_OF_RANGE('sourceEnd', '>= 0', sourceEnd);
  }

  if (targetStart >= target.length || sourceStart >= sourceEnd)
    return 0;

  return _copyActual(source, target, targetStart, sourceStart, sourceEnd);
}

function _copyActual(source, target, targetStart, sourceStart, sourceEnd) {
  if (sourceEnd - sourceStart > target.length - targetStart)
    sourceEnd = sourceStart + target.length - targetStart;

  let nb = sourceEnd - sourceStart;
  const sourceLen = source.length - sourceStart;
  if (nb > sourceLen)
    nb = sourceLen;

  if (sourceStart !== 0 || sourceEnd < source.length)
    source = new Uint8Array(source.buffer, source.byteOffset + sourceStart, nb);

  TypedArrayPrototypeSet(target, source, targetStart);

  return nb;
}

/**
 * The Buffer() constructor is deprecated in documentation and should not be
 * used moving forward. Rather, developers should use one of the three new
 * factory APIs: Buffer.from(), Buffer.allocUnsafe() or Buffer.alloc() based on
 * their specific needs. There is no runtime deprecation because of the extent
 * to which the Buffer constructor is used in the ecosystem currently -- a
 * runtime deprecation would introduce too much breakage at this time. It's not
 * likely that the Buffer constructors would ever actually be removed.
 * Deprecation Code: DEP# SPDX-License-Identifier: GPL-2.0
ifndef NO_DWARF
PERF_HAVE_DWARF_REGS := 1
endif

HAVE_KVM_STAT_SUPPORT := 1
PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
PERF_HAVE_JITDUMP := 1

#
# Syscall table generation for perf
#

out    := $(OUTPUT)arch/powerpc/include/generated/asm
header32 := $(out)/syscalls_32.c
header64 := $(out)/syscalls_64.c
sysprf := $(srctree)/tools/perf/arch/powerpc/entry/syscalls
sysdef := $(sysprf)/syscall.tbl
systbl := $(sysprf)/mksyscalltbl

# Create output directory if not already present
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')

$(header64): $(sysdef) $(systbl)
	$(Q)$(SHELL) '$(systbl)' '64' $(sysdef) > $@

$(header32): $(sysdef) $(systbl)
	$(Q)$(SHELL) '$(systbl)' '32' $(sysdef) > $@

clean::
	$(call QUIET_CLEAN, powerpc) $(RM) $(header32) $(header64)

archheaders: $(header32) $(header64)