b69ca94efb
This was caused by a change in the shared driver code. Not log's fault. Renamed #definitions of driver process numbers, e.g., TTY now is TTY_PROC_NR. All known (special) processes now have consistent naming scheme. Kernel tasks don't follow this scheme.
97 lines
4.5 KiB
C
Executable file
97 lines
4.5 KiB
C
Executable file
/* The object file of "table.c" contains most kernel data. Variables that
|
|
* are declared in the *.h files appear with EXTERN in front of them, as in
|
|
*
|
|
* EXTERN int x;
|
|
*
|
|
* Normally EXTERN is defined as extern, so when they are included in another
|
|
* file, no storage is allocated. If EXTERN were not present, but just say,
|
|
*
|
|
* int x;
|
|
*
|
|
* then including this file in several source files would cause 'x' to be
|
|
* declared several times. While some linkers accept this, others do not,
|
|
* so they are declared extern when included normally. However, it must be
|
|
* declared for real somewhere. That is done here, by redefining EXTERN as
|
|
* the null string, so that inclusion of all *.h files in table.c actually
|
|
* generates storage for them.
|
|
*
|
|
* Various variables could not be declared EXTERN, but are declared PUBLIC
|
|
* or PRIVATE. The reason for this is that extern variables cannot have a
|
|
* default initialization. If such variables are shared, they must also be
|
|
* declared in one of the *.h files without the initialization. Examples
|
|
* include 'boot_image' (this file) and 'idt' and 'gdt' (protect.c).
|
|
*
|
|
* Changes:
|
|
* Nov 10, 2004 removed controller->driver mappings (Jorrit N. Herder)
|
|
* Oct 17, 2004 updated above and tasktab comments (Jorrit N. Herder)
|
|
* May 01, 2004 changed struct for system image (Jorrit N. Herder)
|
|
*/
|
|
#define _TABLE
|
|
|
|
#include "kernel.h"
|
|
#include "proc.h"
|
|
#include "ipc.h"
|
|
#include <minix/com.h>
|
|
#include <ibm/int86.h>
|
|
|
|
/* Define stack sizes for the kernel tasks included in the system image. */
|
|
#define NO_STACK 0
|
|
#define SMALL_STACK (128 * sizeof(char *))
|
|
#define IDLE_S SMALL_STACK /* 3 intr, 3 temps, 4 db for Intel */
|
|
#define HRDW_S NO_STACK /* dummy task, uses kernel stack */
|
|
#define TASK_S SMALL_STACK /* system and clock task */
|
|
|
|
/* Stack space for all the task stacks. Declared as (char *) to align it. */
|
|
#define TOT_STACK_SPACE (IDLE_S + HRDW_S + (2 * TASK_S))
|
|
PUBLIC char *t_stack[TOT_STACK_SPACE / sizeof(char *)];
|
|
|
|
/* Define flags for the various process types. */
|
|
#define IDLE_F (BILLABLE | SYS_PROC) /* idle task */
|
|
#define TASK_F (SYS_PROC) /* kernel tasks */
|
|
#define SERV_F (PREEMPTIBLE | SYS_PROC) /* system services */
|
|
#define USER_F (PREEMPTIBLE | BILLABLE) /* user processes */
|
|
|
|
/* Define system call traps for the various process types. These call masks
|
|
* determine what system call traps a process is allowed to make.
|
|
*/
|
|
#define TASK_T (1 << RECEIVE) /* clock and system */
|
|
#define SERV_T (~0) /* system services */
|
|
#define USER_T ((1 << SENDREC) | (1 << ECHO)) /* user processes */
|
|
|
|
|
|
/* The system image table lists all programs that are part of the boot image.
|
|
* The order of the entries here MUST agree with the order of the programs
|
|
* in the boot image and all kernel tasks must come first.
|
|
* Each entry provides the process number, flags, quantum size (qs), scheduling
|
|
* queue, allowed traps, ipc mask, and a name for the process table. The
|
|
* initial program counter and stack size is also provided for kernel tasks.
|
|
*/
|
|
PUBLIC struct boot_image image[] = {
|
|
/* process nr, pc, flags, qs, queue, stack, traps, ipc mask, name */
|
|
{ IDLE, idle_task, IDLE_F, 32, IDLE_Q, IDLE_S, 0, 0, "IDLE" },
|
|
{ CLOCK, clock_task, TASK_F, 0, TASK_Q, TASK_S, TASK_T, 0, "CLOCK" },
|
|
{ SYSTEM, sys_task, TASK_F, 0, TASK_Q, TASK_S, TASK_T, 0, "SYSTEM" },
|
|
{ HARDWARE, 0, TASK_F, 0, TASK_Q, HRDW_S, 0, 0, "KERNEL" },
|
|
{ PM_PROC_NR, 0, SERV_F, 16, 3, 0, SERV_T, SERV_M, "PM" },
|
|
{ FS_PROC_NR, 0, SERV_F, 16, 4, 0, SERV_T, SERV_M, "FS" },
|
|
{ SM_PROC_NR, 0, SERV_F, 16, 3, 0, SERV_T, SYST_M, "SM" },
|
|
{ TTY_PROC_NR, 0, SERV_F, 16, 1, 0, SERV_T, SYST_M, "TTY" },
|
|
{ MEM_PROC_NR, 0, SERV_F, 16, 2, 0, SERV_T, DRIV_M, "MEMORY" },
|
|
{ LOG_PROC_NR, 0, SERV_F, 16, 2, 0, SERV_T, SYST_M, "LOG" },
|
|
#if ENABLE_AT_WINI
|
|
{ AT_PROC_NR, 0, SERV_F, 16, 2, 0, SERV_T, DRIV_M, "AT_WINI" },
|
|
#endif
|
|
#if ENABLE_BIOS_WINI
|
|
{ BIOS_PROC_NR, 0, SERV_F, 16, 2, 0, SERV_T, SYST_M, "BIOS" },
|
|
#endif
|
|
{ INIT_PROC_NR, 0, USER_F, 8, USER_Q, 0, USER_T, USER_M, "INIT" },
|
|
};
|
|
|
|
/* Verify the size of the system image table at compile time. If the number
|
|
* is not correct, the size of the 'dummy' array will be negative, causing
|
|
* a compile time error. Note that no space is allocated because 'dummy' is
|
|
* declared extern.
|
|
*/
|
|
extern int dummy[(NR_BOOT_PROCS==sizeof(image)/sizeof(struct boot_image))?1:-1];
|
|
|