genode/base/src/core/include/rom_fs.h

101 lines
2.2 KiB
C++

/**
* \brief Read-only memory modules
* \author Christian Helmuth
* \date 2006-05-15
*/
/*
* Copyright (C) 2006-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _CORE__INCLUDE__ROM_FS_H_
#define _CORE__INCLUDE__ROM_FS_H_
#include <base/stdint.h>
#include <base/printf.h>
#include <util/avl_tree.h>
#include <util/avl_string.h>
namespace Genode {
/**
* Convert module command line to module base name
*
* The conversion is performed in place. The returned
* pointer refers to a substring of the 'name' argument.
*/
inline char *commandline_to_basename(char *name)
{
for (char *c = name; *c != 0; c++) {
if (*c == '/') name = c + 1;
if (*c == ' ') {
*c = 0;
break;
}
}
return name;
}
class Rom_module : public Avl_string_base
{
private:
/* Location of module in memory and size */
addr_t _addr;
size_t _size;
public:
/** Standard constructor creates invalid object */
Rom_module()
: Avl_string_base(0), _addr(0), _size(0) { }
Rom_module(addr_t addr, size_t size, const char *name)
: Avl_string_base(name), _addr(addr), _size(size) { }
/** Check validity */
bool valid() { return _size ? true : false; }
/** Accessor functions */
addr_t addr() const { return _addr; }
size_t size() const { return _size; }
};
class Rom_fs : public Avl_tree<Avl_string_base>
{
public:
Rom_module * find(const char *name)
{
return first() ? (Rom_module *)first()->find_by_name(name) : 0;
}
/* DEBUG */
void print_fs(Rom_module *r = 0)
{
if (!r) {
Rom_module *first_module = (Rom_module *)first();
if (first_module) {
printf("Rom_fs %p dump:\n", this);
print_fs(first_module);
} else {
printf("No modules in Rom_fs %p\n", this);
}
} else {
Rom_module *child;
printf(" Rom: [%08lx,%08lx) %s\n",
r->addr(), r->addr() + r->size(), r->name());
if ((child = (Rom_module *)r->child(Rom_module::LEFT))) print_fs(child);
if ((child = (Rom_module *)r->child(Rom_module::RIGHT))) print_fs(child);
}
}
};
}
#endif /* _CORE__INCLUDE__ROM_FS_H_ */