| 1 | #ifndef CONFIG_H
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| 2 | #define CONFIG_H
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| 3 |
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| 4 | /* This file defines the kernel configuration. It allows to set sizes of some
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| 5 | * kernel buffers and to enable or disable debugging code, timing features,
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| 6 | * and individual kernel calls.
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| 7 | *
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| 8 | * Changes:
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| 9 | * Jul 11, 2005 Created. (Jorrit N. Herder)
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| 10 | */
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| 11 |
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| 12 | /* In embedded and sensor applications, not all the kernel calls may be
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| 13 | * needed. In this section you can specify which kernel calls are needed
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| 14 | * and which are not. The code for unneeded kernel calls is not included in
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| 15 | * the system binary, making it smaller. If you are not sure, it is best
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| 16 | * to keep all kernel calls enabled.
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| 17 | */
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| 18 | #define USE_FORK 1 /* fork a new process */
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| 19 | #define USE_NEWMAP 1 /* set a new memory map */
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| 20 | #define USE_EXEC 1 /* update process after execute */
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| 21 | #define USE_EXIT 1 /* clean up after process exit */
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| 22 | #define USE_TRACE 1 /* process information and tracing */
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| 23 | #define USE_GETKSIG 1 /* retrieve pending kernel signals */
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| 24 | #define USE_ENDKSIG 1 /* finish pending kernel signals */
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| 25 | #define USE_KILL 1 /* send a signal to a process */
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| 26 | #define USE_SIGSEND 1 /* send POSIX-style signal */
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| 27 | #define USE_SIGRETURN 1 /* sys_sigreturn(proc_nr, ctxt_ptr, flags) */
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| 28 | #define USE_ABORT 1 /* shut down MINIX */
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| 29 | #define USE_GETINFO 1 /* retrieve a copy of kernel data */
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| 30 | #define USE_TIMES 1 /* get process and system time info */
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| 31 | #define USE_SETALARM 1 /* schedule a synchronous alarm */
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| 32 | #define USE_DEVIO 1 /* read or write a single I/O port */
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| 33 | #define USE_VDEVIO 1 /* process vector with I/O requests */
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| 34 | #define USE_SDEVIO 1 /* perform I/O request on a buffer */
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| 35 | #define USE_IRQCTL 1 /* set an interrupt policy */
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| 36 | #define USE_SEGCTL 1 /* set up a remote segment */
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| 37 | #define USE_PRIVCTL 1 /* system privileges control */
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| 38 | #define USE_NICE 1 /* change scheduling priority */
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| 39 | #define USE_UMAP 1 /* map virtual to physical address */
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| 40 | #define USE_VIRCOPY 1 /* copy using virtual addressing */
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| 41 | #define USE_VIRVCOPY 1 /* vector with virtual copy requests */
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| 42 | #define USE_PHYSCOPY 1 /* copy using physical addressing */
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| 43 | #define USE_PHYSVCOPY 1 /* vector with physical copy requests */
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| 44 | #define USE_MEMSET 1 /* write char to a given memory area */
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| 45 |
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| 46 | /* Length of program names stored in the process table. This is only used
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| 47 | * for the debugging dumps that can be generated with the IS server. The PM
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| 48 | * server keeps its own copy of the program name.
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| 49 | */
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| 50 | #define P_NAME_LEN 8
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| 51 |
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| 52 | /* Kernel diagnostics are written to a circular buffer. After each message,
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| 53 | * a system server is notified and a copy of the buffer can be retrieved to
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| 54 | * display the message. The buffers size can safely be reduced.
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| 55 | */
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| 56 | #define KMESS_BUF_SIZE 256
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| 57 |
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| 58 | /* Buffer to gather randomness. This is used to generate a random stream by
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| 59 | * the MEMORY driver when reading from /dev/random.
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| 60 | */
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| 61 | #define RANDOM_ELEMENTS 32
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| 62 |
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| 63 | /* This section contains defines for valuable system resources that are used
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| 64 | * by device drivers. The number of elements of the vectors is determined by
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| 65 | * the maximum needed by any given driver. The number of interrupt hooks may
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| 66 | * be incremented on systems with many device drivers.
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| 67 | */
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| 68 | #define NR_IRQ_HOOKS 16 /* number of interrupt hooks */
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| 69 | #define VDEVIO_BUF_SIZE 64 /* max elements per VDEVIO request */
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| 70 | #define VCOPY_VEC_SIZE 16 /* max elements per VCOPY request */
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| 71 |
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| 72 | /* How many bytes for the kernel stack. Space allocated in mpx.s. */
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| 73 | #define K_STACK_BYTES 1024
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| 74 |
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| 75 | /* This section allows to enable kernel debugging and timing functionality.
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| 76 | * For normal operation all options should be disabled.
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| 77 | */
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| 78 | #define DEBUG_SCHED_CHECK 0 /* sanity check of scheduling queues */
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| 79 | #define DEBUG_LOCK_CHECK 0 /* kernel lock() sanity check */
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| 80 | #define DEBUG_TIME_LOCKS 0 /* measure time spent in locks */
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| 81 |
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| 82 | #endif /* CONFIG_H */
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| 83 |
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