Axel Dörfler
9ebc403c77
MAIN_THREAD_STACK_SIZE to USER_MAIN_THREAD_STACK_SIZE. Added support for stack overflow debugging: in userspace, the lower (on x86) 4 pages will be used to detect stack overflows. It's disabled for kernel stacks by default. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10013 a95241bf-73f2-0310-859d-f6bbb57e9c96
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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* Copyright 2002-2004, Axel Dörfler, [email protected].
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_KERNEL_H
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#define _KERNEL_KERNEL_H
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#include <arch_kernel.h>
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#include <arch_config.h>
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/* Passed in buffers from user-space shouldn't point into the kernel */
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#define IS_USER_ADDRESS(x) \
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((addr_t)(x) < KERNEL_BASE || (addr_t)(x) > KERNEL_TOP)
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#define IS_KERNEL_ADDRESS(x) \
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((addr_t)(x) >= KERNEL_BASE && (addr_t)(x) <= KERNEL_TOP)
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/** Size of the kernel stack */
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#ifndef DEBUG_KERNEL_STACKS
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# define KERNEL_STACK_SIZE (B_PAGE_SIZE * 2) // 8 kB
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#else
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# define KERNEL_STACK_SIZE (B_PAGE_SIZE * 3) // 8 kB + one guard page
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#endif
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#define KERNEL_STACK_GUARD_PAGES 1
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/** Size of the stack given to teams in user space */
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#define USER_MAIN_THREAD_STACK_SIZE (16 * 1024 * 1024) // 16 MB
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#define USER_STACK_SIZE (256 * 1024) // 256 kB
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#define USER_STACK_GUARD_PAGES 4 // 16 kB
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/** Size of the environmental variables space for a process */
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#define ENV_SIZE (B_PAGE_SIZE * 8)
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#define ROUNDUP(a, b) (((a) + ((b)-1)) & ~((b)-1))
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#define ROUNDOWN(a, b) (((a) / (b)) * (b))
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#define CHECK_BIT(a, b) ((a) & (1 << (b)))
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#define SET_BIT(a, b) ((a) | (1 << (b)))
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#define CLEAR_BIT(a, b) ((a) & (~(1 << (b))))
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#endif /* _KERNEL_KERNEL_H */
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