86 lines
3.7 KiB
C
86 lines
3.7 KiB
C
#ifndef CONFIG_H
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#define CONFIG_H
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/* This file defines the kernel configuration. It allows to set sizes of some
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* kernel buffers and to enable or disable debugging code, timing features,
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* and individual kernel calls.
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*
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* Created: Jul 11, 2005 Jorrit N. Herder
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*/
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/* In embedded and sensor applications, not all the kernel calls may be
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* needed. In this section you can specify which kernel calls are needed
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* and which are not. The code for unneeded kernel calls is not included in
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* the system binary, making it smaller. If you are not sure, it is best
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* to keep all kernel calls enabled.
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*/
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#define USE_FORK 1 /* fork a new process */
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#define USE_NEWMAP 1 /* set a new memory map */
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#define USE_EXEC 1 /* update process after execute */
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#define USE_EXIT 1 /* clean up after process exit */
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#define USE_TRACE 1 /* process information and tracing */
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#define USE_GETKSIG 1 /* retrieve pending kernel signals */
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#define USE_ENDKSIG 1 /* finish pending kernel signals */
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#define USE_KILL 1 /* send a signal to a process */
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#define USE_SIGSEND 1 /* send POSIX-style signal */
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#define USE_SIGRETURN 1 /* sys_sigreturn(proc_nr, ctxt_ptr, flags) */
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#define USE_ABORT 1 /* shut down MINIX */
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#define USE_GETINFO 1 /* retrieve a copy of kernel data */
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#define USE_TIMES 1 /* get process and system time info */
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#define USE_SETALARM 1 /* schedule a synchronous alarm */
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#define USE_DEVIO 1 /* read or write a single I/O port */
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#define USE_VDEVIO 1 /* process vector with I/O requests */
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#define USE_SDEVIO 1 /* perform I/O request on a buffer */
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#define USE_IRQCTL 1 /* set an interrupt policy */
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#define USE_SEGCTL 1 /* set up a remote segment */
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#define USE_SVRCTL 1 /* system server control */
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#define USE_SCHEDCTL 1 /* change scheduling priority (nice) */
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#define USE_UMAP 1 /* map virtual to physical address */
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#define USE_VIRCOPY 1 /* copy using virtual addressing */
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#define USE_VIRVCOPY 1 /* vector with virtual copy requests */
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#define USE_PHYSCOPY 1 /* copy using physical addressing */
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#define USE_PHYSVCOPY 1 /* vector with physical copy requests */
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#define USE_MEMSET 1 /* write char to a given memory area */
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/* Length of program names stored in the process table. This is only used
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* for the debugging dumps that can be generated with the IS server. The PM
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* server keeps its own copy of the program name.
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*/
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#define P_NAME_LEN 8
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/* Kernel diagnostics are written to a circular buffer. After each message,
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* a system server is notified and a copy of the buffer can be retrieved to
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* display the message. The buffers size can safely be reduced.
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*/
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#define KMESS_BUF_SIZE 128
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/* Buffer to gather randomness. This is used to generate a random stream by
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* the MEMORY driver when reading from /dev/random.
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*/
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#define RANDOM_ELEMENTS 64
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/* This section contains defines for valuable system resources that are used
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* by device drivers. The number of elements of the vectors is determined by
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* the maximum needed by any given driver. The number of interrupt hooks may
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* be incremented on systems with many device drivers.
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*/
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#define NR_IRQ_HOOKS 16 /* number of interrupt hooks */
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#define VDEVIO_BUF_SIZE 64 /* max elements per VDEVIO request */
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#define VCOPY_VEC_SIZE 16 /* max elements per VCOPY request */
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/* How many buffers for notification messages should there be? */
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#define NR_NOTIFY_BUFS 32
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/* This section allows to enable kernel debugging and timing functionality.
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* For normal operation all options should be disabled.
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*/
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#define DEBUG_SCHED_CHECK 0 /* sanity check of scheduling queues */
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#define DEBUG_LOCK_CHECK 0 /* kernel lock() sanity check */
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#define DEBUG_TIME_LOCKS 0 /* measure time spent in locks */
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#endif /* CONFIG_H */
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