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haiku/headers/private/system/commpage_defs.h

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* Introduced new header directory headers/private/system which is supposed to contain headers shared by kernel and userland (mainly libroot). * Moved quite a few private kernel headers to the new location. Split several kernel headers into a shared part and one that is still kernel private. Adjusted all affected Jamfiles and source in the standard x86 build accordingly. The build for other architectures and for test code may be broken. * Quite a bit of userland code still includes private kernel headers. Mostly those are <util/*> headers. The ones that aren't strictly kernel-only should be moved to some other place (maybe headers/private/shared/util). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-14 07:55:16 +04:00
/*
kernel: add a compatibility commpage on x86_64. * x86 uses a commpage with 32-bit addresses, incompatible with the one used for x86_64. For this reason, a compatibility commpage is needed to support a 32-bit userland on x86_64. * define ADDRESS_TYPE as a macro for addr_t (default) or uint32 (for the 32-bit commpage). * team_create_thread_start_internal() will use clone_commpage_area() with KERNEL_USER_DATA_BASE or clone_commpage_compat_area() with KERNEL_USER32_DATA_BASE, to setup the correct commpage. * real_time_clock (in compatibility mode) also updates the compatibility commpage with real time data. Change-Id: I61605077ce0beabab4439ef54edd1eae26f26fd2
2018-05-07 20:00:21 +03:00
* Copyright 2018 Haiku Inc. All Rights Reserved.
* Introduced new header directory headers/private/system which is supposed to contain headers shared by kernel and userland (mainly libroot). * Moved quite a few private kernel headers to the new location. Split several kernel headers into a shared part and one that is still kernel private. Adjusted all affected Jamfiles and source in the standard x86 build accordingly. The build for other architectures and for test code may be broken. * Quite a bit of userland code still includes private kernel headers. Mostly those are <util/*> headers. The ones that aren't strictly kernel-only should be moved to some other place (maybe headers/private/shared/util). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-14 07:55:16 +04:00
* Copyright 2007, Travis Geiselbrecht. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _SYSTEM_COMMPAGE_DEFS_H
#define _SYSTEM_COMMPAGE_DEFS_H
/*! Some systemwide commpage constants, used in the kernel and libroot */
/* be careful what you put here, this file is included from assembly */
#define COMMPAGE_ENTRY_MAGIC 0
#define COMMPAGE_ENTRY_VERSION 1
#define COMMPAGE_ENTRY_REAL_TIME_DATA 2
#define COMMPAGE_ENTRY_FIRST_ARCH_SPECIFIC 3
#define COMMPAGE_SIZE (0x8000)
#define COMMPAGE_TABLE_ENTRIES 64
#define COMMPAGE_SIGNATURE 'COMM'
#define COMMPAGE_VERSION 1
kernel: add a compatibility commpage on x86_64. * x86 uses a commpage with 32-bit addresses, incompatible with the one used for x86_64. For this reason, a compatibility commpage is needed to support a 32-bit userland on x86_64. * define ADDRESS_TYPE as a macro for addr_t (default) or uint32 (for the 32-bit commpage). * team_create_thread_start_internal() will use clone_commpage_area() with KERNEL_USER_DATA_BASE or clone_commpage_compat_area() with KERNEL_USER32_DATA_BASE, to setup the correct commpage. * real_time_clock (in compatibility mode) also updates the compatibility commpage with real time data. Change-Id: I61605077ce0beabab4439ef54edd1eae26f26fd2
2018-05-07 20:00:21 +03:00
#ifdef COMMPAGE_COMPAT
#include <arch/x86/arch_commpage_defs.h>
#else
* Introduced new header directory headers/private/system which is supposed to contain headers shared by kernel and userland (mainly libroot). * Moved quite a few private kernel headers to the new location. Split several kernel headers into a shared part and one that is still kernel private. Adjusted all affected Jamfiles and source in the standard x86 build accordingly. The build for other architectures and for test code may be broken. * Quite a bit of userland code still includes private kernel headers. Mostly those are <util/*> headers. The ones that aren't strictly kernel-only should be moved to some other place (maybe headers/private/shared/util). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-14 07:55:16 +04:00
#include <arch_commpage_defs.h>
kernel: add a compatibility commpage on x86_64. * x86 uses a commpage with 32-bit addresses, incompatible with the one used for x86_64. For this reason, a compatibility commpage is needed to support a 32-bit userland on x86_64. * define ADDRESS_TYPE as a macro for addr_t (default) or uint32 (for the 32-bit commpage). * team_create_thread_start_internal() will use clone_commpage_area() with KERNEL_USER_DATA_BASE or clone_commpage_compat_area() with KERNEL_USER32_DATA_BASE, to setup the correct commpage. * real_time_clock (in compatibility mode) also updates the compatibility commpage with real time data. Change-Id: I61605077ce0beabab4439ef54edd1eae26f26fd2
2018-05-07 20:00:21 +03:00
#endif
* Introduced new header directory headers/private/system which is supposed to contain headers shared by kernel and userland (mainly libroot). * Moved quite a few private kernel headers to the new location. Split several kernel headers into a shared part and one that is still kernel private. Adjusted all affected Jamfiles and source in the standard x86 build accordingly. The build for other architectures and for test code may be broken. * Quite a bit of userland code still includes private kernel headers. Mostly those are <util/*> headers. The ones that aren't strictly kernel-only should be moved to some other place (maybe headers/private/shared/util). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-14 07:55:16 +04:00
#endif /* _SYSTEM_COMMPAGE_DEFS_H */
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