198c976f7e
that passes signal map along. This mechanisms is also used for nonuser signals like SIGKMESS, SIGKSTOP, SIGKSIG. Revised comments of many system call handlers. Renamed setpriority to nice.
91 lines
3.9 KiB
C
91 lines
3.9 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_NICE 1 /* change scheduling priority */
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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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#if TEMP_CODE
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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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#endif
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/* How many bytes for the kernel stack. Space allocated in mpx.s. */
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#define K_STACK_BYTES 1024
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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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