ld64-136.tar.gz

[apple/ld64.git] / ld64-134.9 / src / other / PruneTrie.cpp

diff --git a/ld64-134.9/src/other/PruneTrie.cpp b/ld64-134.9/src/other/PruneTrie.cpp
deleted file mode 100644 (file)
index 766ae94..0000000
--- a/ld64-134.9/src/other/PruneTrie.cpp
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@@ -1,100 +0,0 @@
-/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*- 
- *
- * Copyright (c) 2008 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 <vector>
-
-#include "MachOFileAbstraction.hpp"
-#include "MachOTrie.hpp"
-#include "prune_trie.h"
-
-
-
-
-/*
- * prune_trie() is a C vended function that is used by strip(1) to prune out
- * defined exported symbols from the export trie.  It is passed a pointer to
- * the start of bytes of the the trie and the size.  The prune() funciton
- * passed is called with each symbol name in the trie to determine if it is
- * to be pruned (retuning 1) or not (returning 0).  It writes the new trie
- * back into the trie buffer and returns the new size in trie_new_size.
- * If the pruning succeeds, NULL is returned.  If there was an error processing
- * the trie (e.f. it is malformed), then an error message string is returned.
- * The error string can be freed.
- */
-const char*
-prune_trie(
-       uint8_t*        trie_start,
-       uint32_t        trie_start_size,
-       int                     (*prune)(const char *name),
-       uint32_t*       trie_new_size)
-{
-       // convert trie to vector of entries
-       std::vector<mach_o::trie::Entry> originalExports;
-       try {
-               parseTrie(trie_start, trie_start+trie_start_size, originalExports);
-       }
-       catch (const char* msg) {
-               return strdup(msg);
-       }
-       catch (...) {
-               return strdup("unexpected exception processing trie");
-       }
-       
-       // prune entries into new vector of entries
-       std::vector<mach_o::trie::Entry> newExports;
-       newExports.reserve(originalExports.size());
-       for(std::vector<mach_o::trie::Entry>::iterator it = originalExports.begin(); it != originalExports.end(); ++it) {
-               if ( prune(it->name) == 0 ) 
-                       newExports.push_back(*it);
-       }
-
-       // create new export trie
-       std::vector<uint8_t> newExportTrieBytes;
-       newExportTrieBytes.reserve(trie_start_size);
-       mach_o::trie::makeTrie(newExports, newExportTrieBytes);
-       // Need to align trie to 8 or 4 bytes.  We don't know the arch, but if the incoming trie
-       // was not 8-byte aligned, then it can't be a 64-bit arch, so use 4-byte alignement.
-       if ( (trie_start_size % 8) != 0 ) {
-               // 4-byte align 
-               while ( (newExportTrieBytes.size() % 4 ) != 0)
-                       newExportTrieBytes.push_back(0);
-       }
-       else {
-               // 8-byte align 
-               while ( (newExportTrieBytes.size() % 8 ) != 0)
-                       newExportTrieBytes.push_back(0);
-       }
-       
-       // copy into place, zero pad
-       *trie_new_size = newExportTrieBytes.size();
-       if ( *trie_new_size > trie_start_size ) {
-               char* msg;
-               asprintf(&msg, "new trie is larger (%d) than original (%d)", *trie_new_size, trie_start_size);
-               return msg;
-       }
-       memcpy(trie_start, &newExportTrieBytes[0], *trie_new_size);
-       bzero(trie_start+*trie_new_size, trie_start_size - *trie_new_size);
-       
-       // success
-       return NULL;
-}