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--- dyld/dyld-1340/mach_o/Misc.cpp
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * Copyright (c) 2017 Apple Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-#include <stdlib.h>
-#include <assert.h>
-#include <string.h>
-#include <stdio.h>
-#include <TargetConditionals.h>
-
-#include <AvailabilityMacros.h>
-#include <mach-o/dyld_introspection.h>
-#include <mach-o/dyld_priv.h>
-
-#include "Misc.h"
-#include "SupportedArchs.h"
-#include "Universal.h"
-#include "Archive.h"
-#include "Header.h"
-
-namespace mach_o {
-
-//////////////////////////// ULEB128 helpers ////////////////////////////////////////
-
-uint64_t read_uleb128(std::span<const uint8_t>& buffer, bool& malformed)
-{
- uint64_t result = 0;
- int bit = 0;
- malformed = false;
- while ( true ) {
- if ( buffer.empty() ) {
- malformed = true;
- break;
- }
- uint8_t elt = buffer.front();
- uint64_t slice = elt & 0x7f;
-
- if ( bit > 63 ) {
- malformed = true;
- break;
- }
- else {
- result |= (slice << bit);
- bit += 7;
- }
-
- // Keep iterating if the high bit is set, and advance to next element
- buffer = buffer.subspan(1);
- if ( (elt & 0x80) == 0 )
- break;
- }
- return result;
-}
-
-uint64_t read_uleb128(const uint8_t*& p, const uint8_t* end, bool& malformed)
-{
- // Use the std::span one
- std::span<const uint8_t> buffer(p, end);
- uint64_t result = read_uleb128(buffer, malformed);
-
- // Adjust 'p' to the new start of the buffer as read_uleb128() would have advanced it
- if ( buffer.empty() )
- p = end;
- else
- p = &buffer.front();
-
- return result;
-}
-
-int64_t read_sleb128(const uint8_t*& p, const uint8_t* end, bool& malformed)
-{
- int64_t result = 0;
- int bit = 0;
- uint8_t byte = 0;
- malformed = false;
- do {
- if ( p == end ) {
- malformed = true;
- break;
- }
- byte = *p++;
- result |= (((int64_t)(byte & 0x7f)) << bit);
- bit += 7;
- } while (byte & 0x80);
- // sign extend negative numbers
- if ( ((byte & 0x40) != 0) && (bit < 64) )
- result |= (~0ULL) << bit;
- return result;
-}
-
-uint32_t uleb128_size(uint64_t value)
-{
- uint32_t result = 0;
- do {
- value = value >> 7;
- ++result;
- } while ( value != 0 );
- return result;
-}
-
-Error forEachHeader(std::span<const uint8_t> buffer, std::string_view path,
- void (^callback)(const Header* sliceHeader, size_t sliceLength, bool& stop)) {
- if ( const mach_o::Universal* universal = mach_o::Universal::isUniversal(buffer) ) {
- if ( mach_o::Error err = universal->valid(buffer.size()) )
- return Error("error in file '%s': %s", path.data(), err.message());
- universal->forEachSlice(^(mach_o::Universal::Slice slice, bool &stop) {
- if ( const mach_o::Header* mh = mach_o::Header::isMachO(slice.buffer) ) {
- callback(mh, slice.buffer.size(), stop);
- }
- });
- } else if ( const mach_o::Header* mh = mach_o::Header::isMachO(buffer) ) {
- bool stop = false;
- callback(mh, buffer.size(), stop);
- }
-
- return Error::none();
-}
-
-
-} // namespace mach_o
-
-
-
-
-