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This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue #1082
This commit is contained in:
Norman Feske
2014-05-07 11:48:19 +02:00
parent 1f9890d635
commit ca971bbfd8
3943 changed files with 454 additions and 430 deletions
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64
repos/base-linux/src/platform/context_area.h Normal file
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/*
* \brief Linux-specific utilities for context area
* \author Christian Helmuth
* \date 2013-09-26
*/
/*
* Copyright (C) 2010-2013 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 _PLATFORM__CONTEXT_AREA_H_
#define _PLATFORM__CONTEXT_AREA_H_
/* Genode includes */
#include <base/thread.h>
#include <rm_session/rm_session.h>
#include <linux_syscalls.h>
/* Linux includes */
#include <sys/mman.h>
static inline void flush_context_area()
{
using namespace Genode;
void * const base = (void *) Native_config::context_area_virtual_base();
size_t const size = Native_config::context_area_virtual_size();
int ret;
if ((ret = lx_munmap(base, size)) < 0) {
PERR("%s: failed ret=%d", __func__, ret);
throw Rm_session::Region_conflict();
}
}
static inline Genode::addr_t reserve_context_area()
{
using namespace Genode;
int const flags = MAP_ANONYMOUS | MAP_PRIVATE;
int const prot = PROT_NONE;
size_t const size = Native_config::context_area_virtual_size();
void * const addr_in = (void *)Native_config::context_area_virtual_base();
void * const addr_out = lx_mmap(addr_in, size, prot, flags, -1, 0);
/* reserve at local address failed - unmap incorrect mapping */
if (addr_in != addr_out) {
lx_munmap((void *)addr_out, size);
PERR("%s: failed addr_in=%p addr_out=%p ret=%ld)", __func__,
addr_in, addr_out, (long)addr_out);
throw Rm_session::Region_conflict();
}
return (addr_t) addr_out;
}
#endif /* _PLATFORM__CONTEXT_AREA_H_ */