genode/repos/base/src/core/platform_rom_modules.cc
Norman Feske 6b289a1423 base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:

* The contract between caller and callee becomes more obvious. When
  passing a reference, the contract says that the argument cannot be
  a null pointer. The caller is responsible to ensure that. Therefore,
  the use of reference eliminates the need to add defensive null-pointer
  checks at the callee site, which sometimes merely exist to be on the
  safe side. The bottom line is that the code becomes easier to follow.

* Reference members must be initialized via an object initializer,
  which promotes a programming style that avoids intermediate object-
  construction states. Within core, there are still a few pointers
  as member variables left though. E.g., caused by the late association
  of 'Platform_thread' objects with their 'Platform_pd' objects.

* If no pointers are present as member variables, we don't need to
  manually provide declarations of a private copy constructor and
  an assignment operator to avoid -Weffc++ errors "class ... has
  pointer data members [-Werror=effc++]".

This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.

Fixes #3135
2019-02-12 10:33:13 +01:00

38 lines
928 B
C++

/*
* \brief Default implementation of the ROM modules initialization
* \author Martin Stein
* \date 2017-08-17
*/
/*
* Copyright (C) 2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
/* core includes */
#include <boot_modules.h>
#include <platform.h>
using namespace Genode;
void Platform::_init_rom_modules()
{
/* add boot modules to ROM FS */
Boot_modules_header *header = &_boot_modules_headers_begin;
for (; header < &_boot_modules_headers_end; header++) {
if (!header->size) {
warning("ignore zero-sized boot module '",
Cstring((char const *)header->name), "'");
continue;
}
Rom_module &rom_module = *new (core_mem_alloc())
Rom_module(_rom_module_phys(header->base), header->size,
(char const *)header->name);
_rom_fs.insert(&rom_module);
}
}