53398d733f
Add support for compact address layout. This feature can be enabled through the ac_layout=1 boot option. Change-Id: Ie20b808fce32b5c54d0a7e7210e0084a540e9613
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/* General macros and constants used by the kernel. */
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#ifndef CONST_H
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#define CONST_H
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#include <minix/config.h>
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#include <minix/bitmap.h>
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#include "config.h"
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#include "debug.h"
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/* Translate an endpoint number to a process number, return success. */
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#ifndef isokendpt
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#define isokendpt(e,p) isokendpt_d((e),(p),0)
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#define okendpt(e,p) isokendpt_d((e),(p),1)
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#endif
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/* Constants used in virtual_copy(). Values must be 0 and 1, respectively. */
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#define _SRC_ 0
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#define _DST_ 1
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#define get_sys_bit(map,bit) \
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( MAP_CHUNK((map).chunk,bit) & (1 << CHUNK_OFFSET(bit) ))
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#define get_sys_bits(map,bit) \
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( MAP_CHUNK((map).chunk,bit) )
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#define set_sys_bit(map,bit) \
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( MAP_CHUNK((map).chunk,bit) |= (1 << CHUNK_OFFSET(bit) ))
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#define unset_sys_bit(map,bit) \
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( MAP_CHUNK((map).chunk,bit) &= ~(1 << CHUNK_OFFSET(bit) ))
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/* for kputc() */
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#define END_OF_KMESS 0
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/* User limits. */
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#ifndef USR_DATATOP
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#ifndef _MINIX_MAGIC
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#define USR_DATATOP 0xF0000000
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#else
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#define USR_DATATOP 0xE0000000 /* TODO: is this necessary? */
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#endif
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#endif
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#ifndef USR_STACKTOP
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#define USR_STACKTOP USR_DATATOP
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#endif
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#ifndef USR_DATATOP_COMPACT
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#define USR_DATATOP_COMPACT USR_DATATOP
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#endif
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#ifndef USR_STACKTOP_COMPACT
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#define USR_STACKTOP_COMPACT 0x50000000
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#endif
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#endif /* CONST_H */
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