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Reorganized system call library; uses separate file per call now.

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New configuration header file to include/ exclude functionality.
Extracted privileged features from struct proc and create new struct priv.
Renamed various system calls for readability.
This commit is contained in:
Jorrit Herder
2005-07-14 15:12:12 +00:00
parent 355d22ff06
commit 42ab148155
53 changed files with 1957 additions and 1503 deletions
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22
kernel/proc.h
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@@ -12,6 +12,7 @@
#include <minix/com.h>
#include "protect.h"
#include "const.h"
#include "priv.h"
struct proc {
struct stackframe_s p_reg; /* process' registers saved in stack frame */
@@ -25,9 +26,8 @@ struct proc {
/* M68000 specific registers and FPU details go here. */
#endif
reg_t *p_stguard; /* stack guard word */
proc_nr_t p_nr; /* number of this process (for fast access) */
char p_flags; /* PREEMTIBLE, BILLABLE, etc. */
struct priv *p_priv; /* system privileges structure */
char p_rts_flags; /* SENDING, RECEIVING, etc. */
char p_priority; /* current scheduling priority */
@@ -36,11 +36,7 @@ struct proc {
char p_sched_ticks; /* number of scheduling ticks left */
char p_full_quantums; /* number of full quantums left */
char p_call_mask; /* bit map with allowed system call traps */
send_mask_t p_sendmask; /* mask indicating to whom proc may send */
struct mem_map p_memmap[NR_LOCAL_SEGS]; /* local memory map (T, D, S) */
struct far_mem p_farmem[NR_REMOTE_SEGS]; /* remote memory map */
struct mem_map p_memmap[NR_LOCAL_SEGS]; /* memory map (T, D, S) */
clock_t p_user_time; /* user time in ticks */
clock_t p_sys_time; /* sys time in ticks */
@@ -53,19 +49,15 @@ struct proc {
proc_nr_t p_getfrom; /* from whom does process want to receive? */
proc_nr_t p_sendto; /* to whom does process want to send? */
timer_t p_alarm_timer; /* timer shared by different alarm types */
sigset_t p_pending; /* bit map for pending kernel signals */
char p_name[P_NAME_LEN]; /* name of the process, including \0 */
#if ENABLE_K_DEBUGGING
#if DEBUG_SCHED_CHECK
int p_ready, p_found;
#endif
};
/* Guard word for task stacks. */
#define STACK_GUARD ((reg_t) (sizeof(reg_t) == 2 ? 0xBEEF : 0xDEADBEEF))
/* Bits for the runtime flags. A process is runnable iff p_rts_flags == 0. */
#define SLOT_FREE 0x01 /* process slot is free */
#define NO_MAP 0x02 /* keeps unmapped forked child from running */
@@ -74,11 +66,7 @@ struct proc {
#define SIGNALED 0x10 /* set when new kernel signal arrives */
#define SIG_PENDING 0x20 /* unready while signal being processed */
#define P_STOP 0x40 /* set when process is being traced */
/* Bits for the other process flags. */
#define PREEMPTIBLE 0x01 /* kernel tasks are not preemptible */
#define SCHED_Q_HEAD 0x02 /* add to queue head instead of tail */
#define BILLABLE 0x04 /* system services are not billable */
#define NO_PRIV 0x80 /* privilege structure not yet initialized */
/* Scheduling priorities for p_priority. Values must start at zero (highest
* priority) and increment. Priorities of the processes in the boot image can