--- /dev/null
+/* -*- 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@
+ */
+
+template <typename A>
+struct objc_image_info {
+ uint32_t version;
+ uint32_t flags;
+
+ void setFlag(uint32_t bits) INLINE { uint32_t old = A::P::E::get32(flags); A::P::E::set32(flags, old | bits); }
+ void setSelectorsPrebound() INLINE { setFlag(1<<3); }
+};
+
+template <typename A>
+struct objc_method {
+ uint32_t method_name; // SEL
+ uint32_t method_types; // char *
+ uint32_t method_imp; // IMP
+
+ uint32_t getName() const INLINE { return A::P::E::get32(method_name); }
+ void setName(uint32_t newName) INLINE { A::P::E::set32(method_name, newName); }
+};
+
+template <typename A>
+struct objc_method_list {
+ enum { OBJC_FIXED_UP = 1771 };
+ uint32_t obsolete; // struct objc_method_list *
+ uint32_t method_count; // int
+ struct objc_method<A> method_list[0];
+
+ uint32_t getCount() const INLINE { return A::P::E::get32(method_count); }
+ void setFixedUp(bool fixed) INLINE { A::P::E::set32(obsolete, fixed ? OBJC_FIXED_UP : 0); }
+};
+
+template <typename A>
+struct objc_class {
+ uint32_t isa; // struct objc_class *
+ uint32_t super_class; // struct objc_class *
+ uint32_t name; // const char *
+ uint32_t version; // long
+ uint32_t info; // long
+ uint32_t instance_size; // long
+ uint32_t ivars; // struct objc_ivar_list *
+ uint32_t methodList; // struct objc_method_list *
+ uint32_t method_cache; // struct objc_cache *
+ uint32_t protocols; // objc_protocol_list *
+ uint32_t ivar_layout; // const char *
+ uint32_t ext; // struct objc_class_ext *
+
+ struct objc_class<A> *getIsa(SharedCache<A> *cache) const INLINE { return (struct objc_class<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(isa)); }
+ struct objc_method_list<A> *getMethodList(SharedCache<A> *cache) const INLINE { return (struct objc_method_list<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(methodList)); }
+};
+
+template <typename A>
+struct objc_category {
+ uint32_t category_name; // char *
+ uint32_t class_name; // char *
+ uint32_t instance_methods; // struct objc_method_list *
+ uint32_t class_methods; // struct objc_method_list *
+ uint32_t protocols; // objc_protocol_list *
+ uint32_t size; // uint32_t
+ uint32_t instance_properties; // struct objc_property_list *
+
+ struct objc_method_list<A> *getInstanceMethods(SharedCache<A> *cache) const INLINE { return (struct objc_method_list<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(instance_methods)); }
+ struct objc_method_list<A> *getClassMethods(SharedCache<A> *cache) const INLINE { return (struct objc_method_list<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(class_methods)); }
+};
+
+template <typename A>
+struct objc_symtab {
+ uint32_t sel_ref_cnt; // unsigned long
+ uint32_t refs; // SEL *
+ uint16_t cls_def_cnt; // unsigned short
+ uint16_t cat_def_cnt; // unsigned short
+ uint32_t defs[0]; // void *
+
+ uint16_t getClassCount(void) const INLINE { return A::P::E::get16(cls_def_cnt); }
+ uint16_t getCategoryCount(void) const INLINE { return A::P::E::get16(cat_def_cnt); }
+ struct objc_class<A> *getClass(SharedCache<A> *cache, int index) const INLINE { return (struct objc_class<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(defs[index])); }
+ struct objc_category<A> *getCategory(SharedCache<A> *cache, int index) const INLINE { return (struct objc_category<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(defs[getClassCount() + index])); }
+};
+
+template <typename A>
+struct objc_module {
+ uint32_t version; // unsigned long
+ uint32_t size; // unsigned long
+ uint32_t name; // char*
+ uint32_t symtab; // Symtab
+
+ struct objc_symtab<A> *getSymtab(SharedCache<A> *cache) const INLINE { return (struct objc_symtab<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(symtab)); }
+};
+
+template <typename A>
+struct objc_method_description {
+ uint32_t name; // SEL
+ uint32_t types; // char *
+
+ uint32_t getName() const INLINE { return A::P::E::get32(name); }
+ void setName(uint32_t newName) INLINE { A::P::E::set32(name, newName); }
+};
+
+template <typename A>
+struct objc_method_description_list {
+ uint32_t count; // int
+ struct objc_method_description<A> list[0];
+
+ uint32_t getCount() const INLINE { return A::P::E::get32(count); }
+};
+
+template <typename A>
+struct objc_protocol {
+ uint32_t isa; // danger! contains strange values!
+ uint32_t protocol_name; // const char *
+ uint32_t protocol_list; // struct objc_protocol_list
+ uint32_t instance_methods; // struct objc_method_description_list *
+ uint32_t class_methods; // struct objc_method_description_list *
+
+ struct objc_method_description_list<A> *getInstanceMethodDescriptions(SharedCache<A> *cache) const INLINE { return (struct objc_method_description_list<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(instance_methods)); }
+ struct objc_method_description_list<A> *getClassMethodDescriptions(SharedCache<A> *cache) const INLINE { return (struct objc_method_description_list<A> *)cache->mappedCacheAddressForAddress(A::P::E::get32(class_methods)); }
+};
+
+
+template <typename A, typename V>
+class LegacySelectorUpdater {
+
+ typedef typename A::P P;
+
+ static void visitMethodList(objc_method_list<A> *mlist, V& visitor)
+ {
+ for (uint32_t m = 0; m < mlist->getCount(); m++) {
+ uint64_t oldValue = mlist->method_list[m].getName();
+ uint64_t newValue = visitor.visit(oldValue);
+ mlist->method_list[m].setName(newValue);
+ }
+ mlist->setFixedUp(true);
+ }
+
+ static void visitMethodDescriptionList(objc_method_description_list<A> *mlist, V& visitor)
+ {
+ for (uint32_t m = 0; m < mlist->getCount(); m++) {
+ uint64_t oldValue = mlist->list[m].getName();
+ uint64_t newValue = visitor.visit(oldValue);
+ mlist->list[m].setName(newValue);
+ }
+ }
+
+public:
+
+ static void update(SharedCache<A>* cache, const macho_header<P>* header,
+ V& visitor)
+ {
+ ArraySection<A, objc_module<A> >
+ modules(cache, header, "__OBJC", "__module_info");
+ for (uint64_t m = 0; m < modules.count(); m++) {
+ objc_symtab<A> *symtab = modules.get(m).getSymtab(cache);
+ if (!symtab) continue;
+
+ // Method lists in classes
+ for (uint64_t c = 0; c < symtab->getClassCount(); c++) {
+ objc_class<A> *cls = symtab->getClass(cache, c);
+ objc_class<A> *isa = cls->getIsa(cache);
+ objc_method_list<A> *mlist;
+ if ((mlist = cls->getMethodList(cache))) {
+ visitMethodList(mlist, visitor);
+ }
+ if ((mlist = isa->getMethodList(cache))) {
+ visitMethodList(mlist, visitor);
+ }
+ }
+
+ // Method lists from categories
+ for (uint64_t c = 0; c < symtab->getCategoryCount(); c++) {
+ objc_category<A> *cat = symtab->getCategory(cache, c);
+ objc_method_list<A> *mlist;
+ if ((mlist = cat->getInstanceMethods(cache))) {
+ visitMethodList(mlist, visitor);
+ }
+ if ((mlist = cat->getClassMethods(cache))) {
+ visitMethodList(mlist, visitor);
+ }
+ }
+ }
+
+ // Method description lists from protocols
+ ArraySection<A, objc_protocol<A> >
+ protocols(cache, header, "__OBJC", "__protocol");
+ for (uint64_t p = 0; p < protocols.count(); p++) {
+ objc_protocol<A>& protocol = protocols.get(p);
+ objc_method_description_list<A> *mlist;
+ if ((mlist = protocol.getInstanceMethodDescriptions(cache))) {
+ visitMethodDescriptionList(mlist, visitor);
+ }
+ if ((mlist = protocol.getClassMethodDescriptions(cache))) {
+ visitMethodDescriptionList(mlist, visitor);
+ }
+ }
+
+ // Message refs
+ PointerSection<A, const char *> selrefs(cache, header, "__OBJC", "__message_refs");
+ for (uint64_t s = 0; s < selrefs.count(); s++) {
+ uint64_t oldValue = selrefs.getUnmapped(s);
+ uint64_t newValue = visitor.visit(oldValue);
+ selrefs.set(s, newValue);
+ }
+
+ // Mark image_info
+ const macho_section<P> *imageInfoSection =
+ header->getSection("__OBJC", "__image_info");
+ if (imageInfoSection) {
+ objc_image_info<A> *info = (objc_image_info<A> *)
+ cache->mappedCacheAddressForAddress(imageInfoSection->addr());
+ info->setSelectorsPrebound();
+ }
+ }
+};
projects / apple / dyld.git / blobdiff