db9b70ee54
* 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
40 lines
949 B
C
40 lines
949 B
C
/*
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* Copyright 2018 Haiku Inc. All Rights Reserved.
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* Copyright 2007, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _KERNEL_COMMPAGE_COMPAT_H
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#define _KERNEL_COMMPAGE_COMPAT_H
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#include <image.h>
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#include <SupportDefs.h>
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#define COMMPAGE_COMPAT
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#include <commpage_defs.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t commpage_compat_init(void);
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status_t commpage_compat_init_post_cpus(void);
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void* allocate_commpage_compat_entry(int entry, size_t size);
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addr_t fill_commpage_compat_entry(int entry, const void* copyFrom,
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size_t size);
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image_id get_commpage_compat_image();
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area_id clone_commpage_compat_area(team_id team, void** address);
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// implemented in the architecture specific part
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status_t arch_commpage_compat_init(void);
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status_t arch_commpage_compat_init_post_cpus(void);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /* _KERNEL_COMMPAGE_COMPAT_H */
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