0106045bad
The modular lx_kit seperates the required back end functionality of the Linux emulation environment from the front end. Thereby each driver can reuse specific parts or supply more suitable implementations by itself. It is used to reduce the amount of redundant code in each driver. The lx_kit is split into several layers whose structure is as follows: The first layer in _repos/dde_linux/src/include/lx_emul_ contains those header files that provide the structural definitions and function declarations of the Linux API, e.g. _errno.h_ provides all error code values. The second layer in _repos/dde_linux/src/include/lx_emul/impl_ contains the implementation of selected functions, e.g. _slab.h_ provides the implementation of 'kmalloc()'. The lx_kit back end API is the third layer and provides the _Lx::Malloc_ interface (_repos/dde_linux/src/include/lx_kit/malloc.h_) which is used to implement 'kmalloc()'. There are several generic implementations of the lx_kit interfaces that can be used by a driver. A driver typically includes a 'lx_emul/impl/xyz.h' header once directly in its lx_emul compilation unit. The lx_kit interface files are only included in those compilation units that use or implement the interface. If a driver wants to use a generic implementation it must add the source file to its source file list. The generic implementations are located in _repos/dde_linux/src/lx_kit/_. The modular lx_kit still depends on the private _lx_emul.h_ header file that is tailored to each driver. Since the lx_kit already contains much of the declarations and definitions that were originally placed in these private header files, those files can now ommit a large amount of code. Fixes #1974.
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
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* \brief Linux kernel API
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* \author Norman Feske
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* \author Sebastian Sumpf
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* \author Josef Soentgen
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* \date 2014-08-21
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*
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* Based on the prototypes found in the Linux kernel's 'include/'.
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*/
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/*
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* Copyright (C) 2014 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/******************
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** linux/init.h **
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******************/
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#define __init
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#define __exit
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#define __devinitconst
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#define _SETUP_CONCAT(a, b) __##a##b
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#define SETUP_CONCAT(a, b) _SETUP_CONCAT(a, b)
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#define __setup(str, fn) static void SETUP_CONCAT(fn, SETUP_SUFFIX)(void *addrs) { fn(addrs); }
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#define core_initcall(fn) void core_##fn(void) { fn(); }
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#define subsys_initcall(fn) void subsys_##fn(void) { fn(); }
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#define pure_initcall(fd) void pure_##fn(void) { printk("PURE_INITCALL"); fn(); }
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/********************
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** linux/module.h **
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********************/
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#define EXPORT_SYMBOL(x)
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#define EXPORT_SYMBOL_GPL(x)
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#define MODULE_LICENSE(x)
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#define MODULE_NAME_LEN (64 - sizeof(long))
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#define MODULE_ALIAS(name)
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#define MODULE_AUTHOR(name)
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#define MODULE_DESCRIPTION(desc)
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#define MODULE_VERSION(version)
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#define THIS_MODULE 0
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#define MODULE_FIRMWARE(_firmware)
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#define MODULE_DEVICE_TABLE(type, name)
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struct module;
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#define module_init(fn) void module_##fn(void) { fn(); }
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#define module_exit(fn) void module_exit_##fn(void) { fn(); }
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void module_put_and_exit(int);
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void module_put(struct module *);
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void __module_get(struct module *module);
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int try_module_get(struct module *);
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/*************************
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** linux/moduleparam.h **
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*************************/
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#define module_param(name, type, perm)
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#define module_param_named(name, value, type, perm)
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#define module_param_unsafe(name, type, perm)
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#define module_param_named_unsafe(name, value, type, perm)
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#define MODULE_PARM_DESC(_parm, desc)
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#define kparam_block_sysfs_write(name)
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#define kparam_unblock_sysfs_write(name)
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