--- /dev/null
+/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
+ *
+ * Copyright (c) 2005-2006 Apple Computer, 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@
+ */
+
+#ifndef __OPAQUE_SECTION__
+#define __OPAQUE_SECTION__
+
+
+#include <vector>
+
+#include "ObjectFile.h"
+
+namespace opaque_section {
+
+
+class Segment : public ObjectFile::Segment
+{
+public:
+ Segment(const char* name) { fName = name; }
+ virtual const char* getName() const { return fName; }
+ virtual bool isContentReadable() const { return true; }
+ virtual bool isContentWritable() const { return false; }
+ virtual bool isContentExecutable() const { return (strcmp(fName, "__TEXT") == 0); }
+private:
+ const char* fName;
+};
+
+
+class Reader : public ObjectFile::Reader
+{
+public:
+ Reader(const char* segmentName, const char* sectionName, const char* path,
+ const uint8_t fileContent[], uint64_t fileLength, uint32_t ordinal, const char* symbolName=NULL);
+ virtual ~Reader();
+
+ void addSectionReference(uint8_t kind, uint64_t offsetInSection, const ObjectFile::Atom* targetAtom,
+ uint64_t offsetInTarget, const ObjectFile::Atom* fromTargetAtom=NULL, uint64_t offsetInFromTarget=0);
+
+ virtual const char* getPath() { return fPath; }
+ virtual time_t getModificationTime() { return 0; }
+ virtual DebugInfoKind getDebugInfoKind() { return ObjectFile::Reader::kDebugInfoNone; }
+ virtual std::vector<class ObjectFile::Atom*>& getAtoms() { return fAtoms; }
+ virtual std::vector<class ObjectFile::Atom*>* getJustInTimeAtomsFor(const char* name) { return NULL; }
+ virtual std::vector<Stab>* getStabs() { return NULL; }
+
+private:
+ const char* fPath;
+ std::vector<class ObjectFile::Atom*> fAtoms;
+};
+
+class Reference : public ObjectFile::Reference
+{
+public:
+ Reference(uint8_t kind, uint64_t fixupOffset, const ObjectFile::Atom* target, uint64_t targetOffset,
+ const ObjectFile::Atom* fromTarget=NULL, uint64_t fromTargetOffset=0)
+ : fFixUpOffset(fixupOffset), fTarget(target), fTargetOffset(targetOffset), fKind(kind),
+ fFromTarget(fromTarget), fFromTargetOffset(fromTargetOffset) {}
+ virtual ~Reference() {}
+
+
+ virtual ObjectFile::Reference::TargetBinding getTargetBinding() const { return ObjectFile::Reference::kBoundDirectly; }
+ virtual ObjectFile::Reference::TargetBinding getFromTargetBinding() const{ return ObjectFile::Reference::kDontBind; }
+ virtual uint8_t getKind() const { return fKind; }
+ virtual uint64_t getFixUpOffset() const { return fFixUpOffset; }
+ virtual const char* getTargetName() const { return fTarget->getName(); }
+ virtual ObjectFile::Atom& getTarget() const { return *((ObjectFile::Atom*)fTarget); }
+ virtual uint64_t getTargetOffset() const { return fTargetOffset; }
+ virtual ObjectFile::Atom& getFromTarget() const { return *((ObjectFile::Atom*)fFromTarget); }
+ virtual const char* getFromTargetName() const { return fFromTarget->getName(); }
+ virtual uint64_t getFromTargetOffset() const { return fFromTargetOffset; }
+ virtual void setTarget(ObjectFile::Atom&, uint64_t offset) { throw "can't set target"; }
+ virtual void setFromTarget(ObjectFile::Atom&) { throw "can't set from target"; }
+ virtual const char* getDescription() const { return "opaque section reference"; }
+
+private:
+ uint64_t fFixUpOffset;
+ const ObjectFile::Atom* fTarget;
+ uint64_t fTargetOffset;
+ uint8_t fKind;
+ const ObjectFile::Atom* fFromTarget;
+ uint64_t fFromTargetOffset;
+};
+
+
+class Atom : public ObjectFile::Atom {
+public:
+ virtual ObjectFile::Reader* getFile() const { return &fOwner; }
+ virtual bool getTranslationUnitSource(const char** dir, const char** name) const { return false; }
+ virtual const char* getName() const { return fName; }
+ virtual const char* getDisplayName() const;
+ virtual Scope getScope() const { return ObjectFile::Atom::scopeLinkageUnit; }
+ virtual DefinitionKind getDefinitionKind() const { return kRegularDefinition; }
+ virtual SymbolTableInclusion getSymbolTableInclusion() const { return ObjectFile::Atom::kSymbolTableNotIn; }
+ virtual bool dontDeadStrip() const { return true; }
+ virtual bool isZeroFill() const { return false; }
+ virtual uint64_t getSize() const { return fFileLength; }
+ virtual std::vector<ObjectFile::Reference*>& getReferences() const { return (std::vector<ObjectFile::Reference*>&)(fReferences); }
+ virtual bool mustRemainInSection() const { return false; }
+ virtual const char* getSectionName() const { return fSectionName; }
+ virtual Segment& getSegment() const { return fSegment; }
+ virtual ObjectFile::Atom& getFollowOnAtom() const { return *((ObjectFile::Atom*)NULL); }
+ virtual uint32_t getOrdinal() const { return fOrdinal; }
+ virtual std::vector<ObjectFile::LineInfo>* getLineInfo() const { return NULL; }
+ virtual ObjectFile::Alignment getAlignment() const { return ObjectFile::Alignment(4); }
+ virtual void copyRawContent(uint8_t buffer[]) const;
+
+ virtual void setScope(Scope) { }
+
+protected:
+ friend class Reader;
+
+ Atom(Reader& owner, Segment& segment, const char* sectionName,
+ const uint8_t fileContent[], uint64_t fileLength, uint32_t ordinal, const char* symbolName);
+ virtual ~Atom() {}
+
+ Reader& fOwner;
+ Segment& fSegment;
+ const char* fName;
+ const char* fSectionName;
+ const uint8_t* fFileContent;
+ uint32_t fOrdinal;
+ uint64_t fFileLength;
+ std::vector<ObjectFile::Reference*> fReferences;
+};
+
+
+
+Atom::Atom(Reader& owner, Segment& segment, const char* sectionName, const uint8_t fileContent[], uint64_t fileLength, uint32_t ordinal, const char* symbolName)
+ : fOwner(owner), fSegment(segment), fSectionName(sectionName), fFileContent(fileContent), fOrdinal(ordinal), fFileLength(fileLength)
+{
+ if ( symbolName != NULL )
+ fName = strdup(symbolName);
+ else
+ asprintf((char**)&fName, "__section$%s%s", segment.getName(), sectionName);
+}
+
+
+Reader::Reader(const char* segmentName, const char* sectionName, const char* path, const uint8_t fileContent[],
+ uint64_t fileLength, uint32_t ordinal, const char* symbolName)
+ : fPath(path)
+{
+ fAtoms.push_back(new Atom(*this, *(new Segment(segmentName)), strdup(sectionName), fileContent, fileLength, ordinal, symbolName));
+}
+
+Reader::~Reader()
+{
+}
+
+void Reader::addSectionReference(uint8_t kind, uint64_t offsetInSection, const ObjectFile::Atom* targetAtom,
+ uint64_t offsetInTarget, const ObjectFile::Atom* fromTargetAtom, uint64_t offsetInFromTarget)
+{
+ fAtoms[0]->getReferences().push_back(new Reference(kind, offsetInSection, targetAtom, offsetInTarget, fromTargetAtom, offsetInFromTarget));
+}
+
+
+const char* Atom::getDisplayName() const
+{
+ static char name[64];
+ sprintf(name, "opaque section %s %s", fSegment.getName(), fSectionName);
+ return name;
+}
+
+
+void Atom::copyRawContent(uint8_t buffer[]) const
+{
+ memcpy(buffer, fFileContent, fFileLength);
+}
+
+
+
+};
+
+
+
+#endif // __OPAQUE_SECTION__
+
+
+
projects / apple / ld64.git / blobdiff