Minix/rpi_b
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Single boot driver loaded, while multiple can be included in the boot image.

Browse Source 
The user needs to set label=... to choose the driver of his or her choice.
This driver will be mapped onto the controller that is set in controller=...

Minor cleanup of kernel source code (boot image table now is static).
This commit is contained in:
Jorrit Herder
2005-08-03 16:06:35 +00:00
parent c12b74dad5
commit 89cf745fe2
12 changed files with 77 additions and 95 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
kernel/table.c
View File

@@ -58,6 +58,26 @@ PUBLIC char *t_stack[TOT_STACK_SPACE / sizeof(char *)];
#define SERV_T (~0) /* system services */
#define USER_T ((1 << SENDREC) | (1 << ECHO)) /* user processes */
/* Send masks determine to whom processes can send messages or notifications.
* The values here are used for the processes in the boot image. We rely on
* the initialization code in main() to match the s_nr_to_id() mapping for the
* processes in the boot image, so that the send mask that is defined here
* can be directly copied onto map[0] of the actual send mask. Privilege
* structure 0 is shared by user processes.
*
* Note that process numbers in the boot image should not be higher than
* "BITCHUNK_BITS - NR_TASKS", because a bitchunk_t field is used to store
* the send masks in the table that describes that processes in the image.
*/
#define SERV_M (~0)
#define SYST_M (~0)
#define USER_M (s(PM_PROC_NR)|s(FS_PROC_NR)|s(SM_PROC_NR))
#define DRIV_M (USER_M | \
s(SYSTEM)|s(CLOCK)|s(LOG_PROC_NR)|s(TTY_PROC_NR))
/* Sanity check to make sure the send masks can be set. */
extern int dummy[(BITCHUNK_BITS-NR_TASKS > INIT_PROC_NR) ? 1 : -1];
/* 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
@@ -78,8 +98,7 @@ PUBLIC struct boot_image image[] = {
{ 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" },
{ AT_PROC_NR, 0, SERV_F, 16, 2, 0, SERV_T, DRIV_M, "boot" },
{ BIOS_PROC_NR, 0, SERV_F, 16, 2, 0, SERV_T, SYST_M, "bios" },
{ DRVR_PROC_NR, 0, SERV_F, 16, 2, 0, SERV_T, DRIV_M, "driver" },
{ INIT_PROC_NR, 0, USER_F, 8, USER_Q, 0, USER_T, USER_M, "init" },
};