opaque_section_file.cpp   [plain text]

/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*- 
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#include <vector>

#include "ld.hpp"
#include "opaque_section_file.h"


namespace opaque_section {



class Atom : public ld::Atom {
public:
	virtual ld::File*						file() const					{ return (ld::File*)&_file; }
	virtual bool							translationUnitSource(const char** dir, const char** ) const 
																			{ return false; }
	virtual const char*						name() const					{ return _name; }
	virtual uint64_t						size() const					{ return _size; }
	virtual uint64_t						objectAddress() const			{ return 0; }
	virtual void							copyRawContent(uint8_t buffer[]) const
																			{ memcpy(buffer, _content, _size); }
	virtual void							setScope(Scope)					{ }

protected:
	friend class File;
											Atom(class File& f, const char* n,  const uint8_t* content, uint64_t sz);
	virtual									~Atom() {}
	
	class File&								_file;
	const char*								_name;
	const uint8_t*							_content;
	uint64_t								_size;
};


class File : public ld::File 
{
public:
								File(const char* segmentName, const char* sectionName, const char* pth, 
									const uint8_t fileContent[], uint64_t fileLength, uint32_t ord, 
									const char* symbolName="sect_create")
									: ld::File(pth, 0, ord),
									  _atom(*this, symbolName, fileContent, fileLength), 
									  _section(segmentName, sectionName, ld::Section::typeUnclassified) { }
	virtual						~File() { }
	
	virtual bool				forEachAtom(ld::File::AtomHandler& h) const { h.doAtom(_atom); return true; }
	virtual bool				justInTimeforEachAtom(const char* name, ld::File::AtomHandler&) const { return false; }

	ld::Atom*					atom() { return &_atom; }
private:
	friend class Atom;
	
	Atom						_atom;
	ld::Section					_section;
};

Atom::Atom(File& f, const char* n,  const uint8_t* content, uint64_t sz)
	: ld::Atom(f._section, ld::Atom::definitionRegular, ld::Atom::combineNever,
		ld::Atom::scopeTranslationUnit, ld::Atom::typeUnclassified, 
		symbolTableNotIn, true, false, false, ld::Atom::Alignment(0)), 
		_file(f), _name(n), _content(content), _size(sz) {}


//
// main function used by linker for -sectcreate
//
ld::File* parse(const char* segmentName, const char* sectionName, const char* path, 
									const uint8_t fileContent[], uint64_t fileLength, uint32_t ordinal, 
									const char* symbolName)
{
	return new File(segmentName, sectionName, path, fileContent, fileLength, ordinal, symbolName);
}


} // namespace opaque_section