35a108b911
this change
- makes panic() variadic, doing full printf() formatting -
no more NO_NUM, and no more separate printf() statements
needed to print extra info (or something in hex) before panicing
- unifies panic() - same panic() name and usage for everyone -
vm, kernel and rest have different names/syntax currently
in order to implement their own luxuries, but no longer
- throws out the 1st argument, to make source less noisy.
the panic() in syslib retrieves the server name from the kernel
so it should be clear enough who is panicing; e.g.
panic("sigaction failed: %d", errno);
looks like:
at_wini(73130): panic: sigaction failed: 0
syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
- throws out report() - printf() is more convenient and powerful
- harmonizes/fixes the use of panic() - there were a few places
that used printf-style formatting (didn't work) and newlines
(messes up the formatting) in panic()
- throws out a few per-server panic() functions
- cleans up a tie-in of tty with panic()
merging printf() and panic() statements to be done incrementally.
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/* This file takes care of those system calls that deal with time.
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*
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* The entry points into this file are
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* do_time: perform the TIME system call
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* do_stime: perform the STIME system call
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* do_times: perform the TIMES system call
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*/
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#include "pm.h"
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <signal.h>
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#include "mproc.h"
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#include "param.h"
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/*===========================================================================*
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* do_time *
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*===========================================================================*/
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PUBLIC int do_time()
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{
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/* Perform the time(tp) system call. This returns the time in seconds since
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* 1.1.1970. MINIX is an astrophysically naive system that assumes the earth
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* rotates at a constant rate and that such things as leap seconds do not
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* exist.
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*/
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clock_t uptime, boottime;
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int s;
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if ( (s=getuptime2(&uptime, &boottime)) != OK)
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panic("do_time couldn't get uptime: %d", s);
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mp->mp_reply.reply_time = (time_t) (boottime + (uptime/system_hz));
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mp->mp_reply.reply_utime = (uptime%system_hz)*1000000/system_hz;
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return(OK);
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}
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/*===========================================================================*
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* do_stime *
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*===========================================================================*/
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PUBLIC int do_stime()
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{
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/* Perform the stime(tp) system call. Retrieve the system's uptime (ticks
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* since boot) and pass the new time in seconds at system boot to the kernel.
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*/
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clock_t uptime, boottime;
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int s;
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if (mp->mp_effuid != SUPER_USER) {
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return(EPERM);
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}
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if ( (s=getuptime(&uptime)) != OK)
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panic("do_stime couldn't get uptime: %d", s);
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boottime = (long) m_in.stime - (uptime/system_hz);
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s= sys_stime(boottime); /* Tell kernel about boottime */
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if (s != OK)
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panic("pm: sys_stime failed: %d", s);
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return(OK);
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}
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/*===========================================================================*
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* do_times *
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*===========================================================================*/
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PUBLIC int do_times()
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{
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/* Perform the times(buffer) system call. */
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register struct mproc *rmp = mp;
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clock_t user_time, sys_time, uptime;
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int s;
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if (OK != (s=sys_times(who_e, &user_time, &sys_time, &uptime, NULL)))
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panic("do_times couldn't get times: %d", s);
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rmp->mp_reply.reply_t1 = user_time; /* user time */
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rmp->mp_reply.reply_t2 = sys_time; /* system time */
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rmp->mp_reply.reply_t3 = rmp->mp_child_utime; /* child user time */
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rmp->mp_reply.reply_t4 = rmp->mp_child_stime; /* child system time */
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rmp->mp_reply.reply_t5 = uptime; /* uptime since boot */
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return(OK);
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}
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