6f77685609
mainly in the kernel and headers. This split based on work by Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture port. . kernel does not program the interrupt controller directly, do any other architecture-dependent operations, or contain assembly any more, but uses architecture-dependent functions in arch/$(ARCH)/. . architecture-dependent constants and types defined in arch/$(ARCH)/include. . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now, architecture-independent functions. . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls and live in arch/i386/do_* now. . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have gone, and 'machine.protected' is gone (and always taken to be 1 in i386). If 86 support is to return, it should be a new architecture. . prototypes for the architecture-dependent functions defined in kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h . /etc/make.conf included in makefiles and shell scripts that need to know the building architecture; it defines ARCH=<arch>, currently only i386. . some basic per-architecture build support outside of the kernel (lib) . in clock.c, only dequeue a process if it was ready . fixes for new include files files deleted: . mpx/klib.s - only for choosing between mpx/klib86 and -386 . klib86.s - only for 86 i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/: . mpx386.s (entry point) . klib386.s . sconst.h . exception.c . protect.c . protect.h . i8269.c
64 lines
1.9 KiB
C
Executable file
64 lines
1.9 KiB
C
Executable file
/* 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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/* Map a process number to a privilege structure id. */
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#define s_nr_to_id(n) (NR_TASKS + (n) + 1)
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/* Translate a pointer to a field in a structure to a pointer to the structure
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* itself. So it translates '&struct_ptr->field' back to 'struct_ptr'.
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*/
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#define structof(type, field, ptr) \
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((type *) (((char *) (ptr)) - offsetof(type, field)))
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/* Translate an endpoint number to a process number, return success. */
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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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/* 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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/* Number of random sources */
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#define RANDOM_SOURCES 16
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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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#define NR_SYS_CHUNKS BITMAP_CHUNKS(NR_SYS_PROCS)
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#if DEBUG_LOCK_CHECK
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#define reallock(c, v) { if(intr_disabled()) { kinfo.relocking++; } else { intr_disable(); } }
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#else
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#define reallock(c, v) intr_disable()
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#endif
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#define realunlock(c) intr_enable()
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#if DEBUG_TIME_LOCKS
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#define lock(c, v) do { reallock(c, v); locktimestart(c, v); } while(0)
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#define unlock(c) do { locktimeend(c); realunlock(c); } while(0)
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#else
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/* Disable/ enable hardware interrupts. The parameters of lock() and unlock()
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* are used when debugging is enabled. See debug.h for more information.
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*/
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#define lock(c, v) reallock(c, v)
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#define unlock(c) realunlock(c)
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#endif
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/* args to intr_init() */
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#define INTS_ORIG 0 /* restore interrupts */
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#define INTS_MINIX 1 /* initialize interrupts for minix */
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#endif /* CONST_H */
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