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BOOK.PS：源码内容

(16300)210 648 A
1026(/*)S
(This)168 1152 A
(table)210 1362 A
(has)126 1614 A
(one)126 1782 A
(slot)168 1950 A
(per)126 2160 A
(process.)336 2328 A
2748(It)S
(contains)336 2874 A
(all)126 3252 A
(the)126 3420 A
(memory)252 3588 A
(management)420 3882 A
1440 V
(16301)210 648 A
1068(*)S
(information)462 1152 A
(for)126 1656 A
(each)168 1824 A
(process.)336 2034 A
(Among)210 2454 A
(other)210 2706 A
(things,)294 2958 A
3294(it)S
(defines)294 3420 A
(the)126 3756 A
(text,)210 3924 A
(data)168 4176 A
1530 V
(16302)210 648 A
1068(*)S
(and)126 1152 A
(stack)210 1320 A
(segments,)378 1572 A
(uids)168 1992 A
(and)126 2202 A
(gids,)210 2370 A
(and)126 2622 A
(various)294 2790 A
(flags.)252 3126 A
(The)126 3462 A
(kernel)252 3630 A
(and)126 3924 A
(file)168 4092 A
1620 V
(16303)210 648 A
1068(*)S
(systems)294 1152 A
(have)168 1488 A
(tables)252 1698 A
(that)168 1992 A
(are)126 2202 A
(also)168 2370 A
(indexed)294 2580 A
2916(by)S
(process,)336 3042 A
(with)168 3420 A
(the)126 3630 A
(contents)336 3798 A
1710 V
(16304)210 648 A
1068(*)S
1152(of)S
(corresponding)546 1278 A
(slots)210 1866 A
(referring)378 2118 A
2538(to)S
(the)126 2664 A
(same)168 2832 A
(process)294 3042 A
3378(in)S
(all)126 3504 A
(three.)252 3672 A
1800 V
(16305)210 648 A
1068(*/)S
1890 V
(16306)210 648 A
1980 V
(16307)210 648 A
(EXTERN)252 1026 A
(struct)252 1320 A
(mproc)210 1614 A
1866({)S
2070 V
(16308)210 648 A
(struct)252 1110 A
(mem_map)294 1404 A
(mp_seg[NR_SEGS];/*)756 1740 A
(points)252 2538 A
2832(to)S
(text,)210 2958 A
(data,)210 3210 A
(stack)210 3462 A
3714(*/)S
2160 V
(16309)210 648 A
(char)168 1110 A
(mp_exitstatus;)588 1320 A
2370(/*)S
(storage)294 2496 A
(for)126 2832 A
(status)252 3000 A
(when)168 3294 A
(process)294 3504 A
(exits)210 3840 A
4092(*/)S
2250 V
(16310)210 648 A
(char)168 1110 A
(mp_sigstatus;)546 1320 A
2370(/*)S
(storage)294 2496 A
(for)126 2832 A
(signal)252 3000 A
3294(#)S
(for)126 3378 A
(killed)252 3546 A
(procs)210 3840 A
4092(*/)S
2340 V
(16311)210 648 A
(pid_t)210 1110 A
(mp_pid;)294 1362 A
2370(/*)S
(process)294 2496 A
2832(id)S
2958(*/)S
2430 V
(16312)210 648 A
(pid_t)210 1110 A
(mp_procgrp;)462 1362 A
2370(/*)S
(pid)126 2496 A
2664(of)S
(process)294 2790 A
(group)210 3126 A
((used)210 3378 A
(for)126 3630 A
(signals))336 3798 A
4176(*/)S
2520 V
(16313)210 648 A
(pid_t)210 1110 A
(mp_wpid;)336 1362 A
2370(/*)S
(pid)126 2496 A
(this)168 2664 A
(process)294 2874 A
3210(is)S
(waiting)294 3336 A
(for)126 3672 A
3840(*/)S
2610 V
(16314)210 648 A
(int)126 1110 A
(mp_parent;)420 1278 A
2370(/*)S
(index)210 2496 A
2748(of)S
(parent)252 2874 A
(process)294 3168 A
3504(*/)S
2700 V
(16315)210 648 A
2790 V
(16316)210 648 A
1110(/*)S
(Real)168 1236 A
(and)126 1446 A
(effective)378 1614 A
(uids)168 2034 A
(and)126 2244 A
(gids.)210 2412 A
2664(*/)S
2880 V
(16317)210 648 A
(uid_t)210 1110 A
(mp_realuid;)462 1362 A
2370(/*)S
(process')336 2496 A
(real)168 2874 A
(uid)126 3084 A
3252(*/)S
2970 V
(16318)210 648 A
(uid_t)210 1110 A
(mp_effuid;)420 1362 A
2370(/*)S
(process')336 2496 A
(effective)378 2874 A
(uid)126 3294 A
3462(*/)S
3060 V
(16319)210 648 A
(gid_t)210 1110 A
(mp_realgid;)462 1362 A
2370(/*)S
(process')336 2496 A
(real)168 2874 A
(gid)126 3084 A
3252(*/)S
3150 V
(16320)210 648 A
(gid_t)210 1110 A
(mp_effgid;)420 1362 A
2370(/*)S
(process')336 2496 A
(effective)378 2874 A
(gid)126 3294 A
3462(*/)S
3240 V
(16321)210 648 A
3330 V
(16322)210 648 A
1110(/*)S
(File)168 1236 A
(identification)588 1446 A
(for)126 2076 A
(sharing.)336 2244 A
2622(*/)S
3420 V
(16323)210 648 A
(ino_t)210 1110 A
(mp_ino;)294 1362 A
2370(/*)S
(inode)210 2496 A
(number)252 2748 A
3042(of)S
(file)168 3168 A
3378(*/)S
3510 V
(16324)210 648 A
(dev_t)210 1110 A
(mp_dev;)294 1362 A
2370(/*)S
(device)252 2496 A
(number)252 2790 A
3084(of)S
(file)168 3210 A
(system)252 3420 A
3714(*/)S
3600 V
(16325)210 648 A
(time_t)252 1110 A
(mp_ctime;)378 1404 A
2370(/*)S
(inode)210 2496 A
(changed)294 2748 A
(time)168 3084 A
3294(*/)S
3690 V
(16326)210 648 A
3780 V
(16327)210 648 A
1110(/*)S
(Signal)252 1236 A
(handling)336 1530 A
(information.)504 1908 A
2454(*/)S
3870 V
(16328)210 648 A
(sigset_t)336 1110 A
(mp_ignore;)420 1488 A
2370(/*)S
2496(1)S
(means)210 2580 A
(ignore)252 2832 A
(the)126 3126 A
(signal,)294 3294 A
3630(0)S
(means)210 3714 A
(don't)210 3966 A
4218(*/)S
3960 V
(16329)210 648 A
(sigset_t)336 1110 A
(mp_catch;)378 1488 A
2370(/*)S
2496(1)S
(means)210 2580 A
(catch)210 2832 A
(the)126 3084 A
(signal,)294 3252 A
3588(0)S
(means)210 3672 A
(don't)210 3924 A
4176(*/)S
4050 V
(16330)210 648 A
(sigset_t)336 1110 A
(mp_sigmask;)462 1488 A
2370(/*)S
(signals)294 2496 A
2832(to)S
2958(be)S
(blocked)294 3084 A
3420(*/)S
4140 V
(16331)210 648 A
(sigset_t)336 1110 A
(mp_sigmask2;)504 1488 A
2370(/*)S
(saved)210 2496 A
(copy)168 2748 A
2958(of)S
(mp_sigmask)420 3084 A
3546(*/)S
4230 V
(16332)210 648 A
(sigset_t)336 1110 A
(mp_sigpending;)588 1488 A
2370(/*)S
(signals)294 2496 A
(being)210 2832 A
(blocked)294 3084 A
3420(*/)S
4320 V
(16333)210 648 A
(struct)252 1110 A
(sigaction)378 1404 A
(mp_sigact[_NSIG)630 1824 A
2496(+)S
(1];)126 2580 A
2748(/*)S
2874(as)S
3000(in)S
(sigaction(2))504 3126 A
3672(*/)S
4410 V
(16334)210 648 A
(vir_bytes)378 1110 A
(mp_sigreturn;)546 1530 A
2370(/*)S
(address)294 2496 A
2832(of)S
2958(C)S
(library)294 3042 A
(__sigreturn)462 3378 A
(function)336 3882 A
4260(*/)S
4500 V
(16335)210 648 A
4590 V
(16336)210 648 A
1110(/*)S
(Backwards)378 1236 A
(compatibility)546 1656 A
(for)126 2244 A
(signals.)336 2412 A
2790(*/)S
4680 V
(16337)210 648 A
(sighandler_t)504 1110 A
(mp_func;)336 1656 A
2370(/*)S
(all)126 2496 A
(sigs)168 2664 A
(vectored)336 2874 A
3252(to)S
3378(a)S
(single)252 3462 A
(user)168 3756 A
(fcn)126 3966 A
4134(*/)S
4770 V
(16338)210 648 A
4860 V
(16339)210 648 A
(unsigned)336 1110 A
(mp_flags;)378 1488 A
2370(/*)S
(flag)168 2496 A
(bits)168 2706 A
2916(*/)S
4950 V
(16340)210 648 A
(vir_bytes)378 1110 A
(mp_procargs;)504 1530 A
2370(/*)S
(ptr)126 2496 A
2664(to)S
(proc's)252 2790 A
(initial)294 3084 A
(stack)210 3420 A
(arguments)378 3672 A
4092(*/)S
5040 V
(16341)210 648 A
1026(})S
(mproc[NR_PROCS];)672 1110 A
5130 V
(16342)210 648 A
5220 V
(16343)210 648 A
1026(/*)S
(Flag)168 1152 A
(values)252 1362 A
1656(*/)S
5310 V
(16344)210 648 A
(#define)294 1026 A
(IN_USE)252 1362 A
(001)126 2076 A
2370(/*)S
(set)126 2496 A
(when)168 2664 A
('mproc')294 2874 A
(slot)168 3210 A
3420(in)S
(use)126 3546 A
3714(*/)S
5400 V
(16345)210 648 A
(#define)294 1026 A
(WAITING)294 1362 A
(002)126 2076 A
2370(/*)S
(set)126 2496 A
2664(by)S
(WAIT)168 2790 A
(system)252 3000 A
(call)168 3294 A
3504(*/)S
5490 V
(16346)210 648 A
(#define)294 1026 A
(HANGING)294 1362 A
(004)126 2076 A
2370(/*)S
(set)126 2496 A
2664(by)S
(EXIT)168 2790 A
(system)252 3000 A
(call)168 3294 A
3504(*/)S
5580 V
(16347)210 648 A
(#define)294 1026 A
(PAUSED)252 1362 A
(010)126 2076 A
2370(/*)S
(set)126 2496 A
2664(by)S
(PAUSE)210 2790 A
(system)252 3042 A
(call)168 3336 A
3546(*/)S
5670 V
(16348)210 648 A
(#define)294 1026 A
(ALARM_ON)336 1362 A
(020)126 2076 A
2370(/*)S
(set)126 2496 A
(when)168 2664 A
(SIGALRM)294 2874 A
(timer)210 3210 A
(started)294 3462 A
3798(*/)S
5760 V
(16349)210 648 A
(#define)294 1026 A
(SEPARATE)336 1362 A
(040)126 2076 A
2370(/*)S
(set)126 2496 A
2664(if)S
(file)168 2790 A
3000(is)S
(separate)336 3126 A
3504(I)S
3588(&)S
3672(D)S
(space)210 3756 A
4008(*/)S
5850 V
(16350)210 648 A
(#define)294 1026 A
(TRACED)252 1362 A
(0100)168 2034 A
2370(/*)S
(set)126 2496 A
2664(if)S
(process)294 2790 A
3126(is)S
3252(to)S
3378(be)S
(traced)252 3504 A
3798(*/)S
5940 V
(16351)210 648 A
(#define)294 1026 A
(STOPPED)294 1362 A
(0200)168 2034 A
2370(/*)S
(set)126 2496 A
2664(if)S
(process)294 2790 A
(stopped)294 3126 A
(for)126 3462 A
(tracing)294 3630 A
3966(*/)S
6030 V
(16352)210 648 A
(#define)294 1026 A
(SIGSUSPENDED)504 1362 A
(0400)168 2034 A
2370(/*)S
(set)126 2496 A
2664(by)S
(SIGSUSPEND)420 2790 A
(system)252 3252 A
(call)168 3546 A
3756(*/)S
6120 V
(16353)210 648 A
6210 V
(16354)210 648 A
(#define)294 1026 A
(NIL_MPROC)378 1362 A
(((struct)336 1782 A
(mproc)210 2160 A
2412(*))S
2538(0))S
8418 V
EP
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BP
/slant 0 def
/height 0 def
630 V
12 B
(226)180 648 A
11 R
2059(File:)S
2292(src/mm/param.h)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
990 V
7 LST
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
1080 V
(src/mm/param.h)588 2034 A
1170 V
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
1350 V
(16400)210 648 A
1026(/*)S
(The)126 1152 A
(following)378 1320 A
(names)210 1740 A
(are)126 1992 A
(synonyms)336 2160 A
(for)126 2538 A
(the)126 2706 A
(variables)378 2874 A
3294(in)S
(the)126 3420 A
(input)210 3588 A
(message.)336 3840 A
4218(*/)S
1440 V
(16401)210 648 A
(#define)294 1026 A
(addr)168 1362 A
(mm_in.m1_p1)462 2034 A
1530 V
(16402)210 648 A
(#define)294 1026 A
(exec_name)378 1362 A
(mm_in.m1_p1)462 2034 A
1620 V
(16403)210 648 A
(#define)294 1026 A
(exec_len)336 1362 A
(mm_in.m1_i1)462 2034 A
1710 V
(16404)210 648 A
(#define)294 1026 A
(func)168 1362 A
(mm_in.m6_f1)462 2034 A
1800 V
(16405)210 648 A
(#define)294 1026 A
(grpid)210 1362 A
((gid_t))294 2034 A
(mm_in.m1_i1)462 2370 A
1890 V
(16406)210 648 A
(#define)294 1026 A
(namelen)294 1362 A
(mm_in.m1_i1)462 2034 A
1980 V
(16407)210 648 A
(#define)294 1026 A
(pid)126 1362 A
(mm_in.m1_i1)462 2034 A
2070 V
(16408)210 648 A
(#define)294 1026 A
(seconds)294 1362 A
(mm_in.m1_i1)462 2034 A
2160 V
(16409)210 648 A
(#define)294 1026 A
(sig)126 1362 A
(mm_in.m6_i1)462 2034 A
2250 V
(16410)210 648 A
(#define)294 1026 A
(stack_bytes)462 1362 A
(mm_in.m1_i2)462 2034 A
2340 V
(16411)210 648 A
(#define)294 1026 A
(stack_ptr)378 1362 A
(mm_in.m1_p2)462 2034 A
2430 V
(16412)210 648 A
(#define)294 1026 A
(status)252 1362 A
(mm_in.m1_i1)462 2034 A
2520 V
(16413)210 648 A
(#define)294 1026 A
(usr_id)252 1362 A
((uid_t))294 2034 A
(mm_in.m1_i1)462 2370 A
2610 V
(16414)210 648 A
(#define)294 1026 A
(request)294 1362 A
(mm_in.m2_i2)462 2034 A
2700 V
(16415)210 648 A
(#define)294 1026 A
(taddr)210 1362 A
(mm_in.m2_l1)462 2034 A
2790 V
(16416)210 648 A
(#define)294 1026 A
(data)168 1362 A
(mm_in.m2_l2)462 2034 A
2880 V
(16417)210 648 A
(#define)294 1026 A
(sig_nr)252 1362 A
(mm_in.m1_i2)462 2034 A
2970 V
(16418)210 648 A
(#define)294 1026 A
(sig_nsa)294 1362 A
(mm_in.m1_p1)462 2034 A
3060 V
(16419)210 648 A
(#define)294 1026 A
(sig_osa)294 1362 A
(mm_in.m1_p2)462 2034 A
3150 V
(16420)210 648 A
(#define)294 1026 A
(sig_ret)294 1362 A
(mm_in.m1_p3)462 2034 A
3240 V
(16421)210 648 A
(#define)294 1026 A
(sig_set)294 1362 A
(mm_in.m2_l1)462 2034 A
3330 V
(16422)210 648 A
(#define)294 1026 A
(sig_how)294 1362 A
(mm_in.m2_i1)462 2034 A
3420 V
(16423)210 648 A
(#define)294 1026 A
(sig_flags)378 1362 A
(mm_in.m2_i2)462 2034 A
3510 V
(16424)210 648 A
(#define)294 1026 A
(sig_context)462 1362 A
(mm_in.m2_p1)462 2034 A
3600 V
(16425)210 648 A
(#ifdef)252 1026 A
(_SIGMESSAGE)462 1320 A
3690 V
(16426)210 648 A
(#define)294 1026 A
(sig_msg)294 1362 A
(mm_in.m1_i1)462 2034 A
3780 V
(16427)210 648 A
(#endif)252 1026 A
3870 V
(16428)210 648 A
(#define)294 1026 A
(reboot_flag)462 1362 A
(mm_in.m1_i1)462 2034 A
3960 V
(16429)210 648 A
(#define)294 1026 A
(reboot_code)462 1362 A
(mm_in.m1_p1)462 2034 A
4050 V
(16430)210 648 A
(#define)294 1026 A
(reboot_size)462 1362 A
(mm_in.m1_i2)462 2034 A
4140 V
(16431)210 648 A
4230 V
(16432)210 648 A
1026(/*)S
(The)126 1152 A
(following)378 1320 A
(names)210 1740 A
(are)126 1992 A
(synonyms)336 2160 A
(for)126 2538 A
(the)126 2706 A
(variables)378 2874 A
3294(in)S
(the)126 3420 A
(output)252 3588 A
(message.)336 3882 A
4260(*/)S
4320 V
(16433)210 648 A
(#define)294 1026 A
(reply_type)420 1362 A
(mm_out.m_type)546 2034 A
4410 V
(16434)210 648 A
(#define)294 1026 A
(reply_i1)336 1362 A
(mm_out.m2_i1)504 2034 A
4500 V
(16435)210 648 A
(#define)294 1026 A
(reply_p1)336 1362 A
(mm_out.m2_p1)504 2034 A
4590 V
(16436)210 648 A
(#define)294 1026 A
(ret_mask)336 1362 A
(mm_out.m2_l1)504 2034 A
4680 V
(16437)210 648 A
5040 V
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
5130 V
(src/mm/table.c)588 2034 A
5220 V
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
5400 V
(16500)210 648 A
1026(/*)S
(This)168 1152 A
(file)168 1362 A
(contains)336 1572 A
(the)126 1950 A
(table)210 2118 A
(used)168 2370 A
2580(to)S
(map)126 2706 A
(system)252 2874 A
(call)168 3168 A
(numbers)294 3378 A
(onto)168 3714 A
(the)126 3924 A
5490 V
(16501)210 648 A
1068(*)S
(routines)336 1152 A
(that)168 1530 A
(perform)294 1740 A
(them.)210 2076 A
5580 V
(16502)210 648 A
1068(*/)S
5670 V
(16503)210 648 A
5760 V
(16504)210 648 A
(#define)294 1026 A
(_TABLE)252 1362 A
5850 V
(16505)210 648 A
5940 V
(16506)210 648 A
(#include)336 1026 A
("mm.h")252 1404 A
6030 V
(16507)210 648 A
(#include)336 1026 A
(<minix/callnr.h>)672 1404 A
6120 V
(16508)210 648 A
(#include)336 1026 A
(<signal.h>)420 1404 A
6210 V
(16509)210 648 A
(#include)336 1026 A
("mproc.h")378 1404 A
8418 V
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/slant 0 def
/height 0 def
630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2092(File:)S
2325(src/mm/table.c)S
12 B
(227)180 4248 A
900 V
7 LST
(16510)210 648 A
(#include)336 1026 A
("param.h")378 1404 A
990 V
(16511)210 648 A
1080 V
(16512)210 648 A
1026(/*)S
(Miscellaneous)546 1152 A
1740(*/)S
1170 V
(16513)210 648 A
(char)168 1026 A
(core_name[])462 1236 A
1740(=)S
("core";)294 1824 A
2370(/*)S
(file)168 2496 A
(name)168 2706 A
(where)210 2916 A
(core)168 3168 A
(images)252 3378 A
(are)126 3672 A
(produced)336 3840 A
4218(*/)S
1260 V
(16514)210 648 A
1350 V
(16515)210 648 A
(_PROTOTYPE)420 1026 A
((int)168 1488 A
((*call_vec[NCALLS]),)840 1698 A
((void))252 2580 A
2874())S
2958(=)S
3042({)S
1440 V
(16516)210 648 A
(no_sys,)294 1362 A
2034(/*)S
2202(0)S
2286(=)S
(unused)252 2370 A
2706(*/)S
1530 V
(16517)210 648 A
(do_mm_exit,)462 1362 A
2034(/*)S
2202(1)S
2286(=)S
(exit)168 2370 A
2706(*/)S
1620 V
(16518)210 648 A
(do_fork,)336 1362 A
2034(/*)S
2202(2)S
2286(=)S
(fork)168 2370 A
2706(*/)S
1710 V
(16519)210 648 A
(no_sys,)294 1362 A
2034(/*)S
2202(3)S
2286(=)S
(read)168 2370 A
2706(*/)S
1800 V
(16520)210 648 A
(no_sys,)294 1362 A
2034(/*)S
2202(4)S
2286(=)S
(write)210 2370 A
2706(*/)S
1890 V
(16521)210 648 A
(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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2202(6)S
2286(=)S
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2706(*/)S
2070 V
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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(do_trace,)378 1362 A
2034(/*)S
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2286(=)S
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(do_alarm,)378 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
4050 V
(16545)210 648 A
(do_pause,)378 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
4140 V
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2286(=)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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2286(=)S
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2286(=)S
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2286(=)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2286(=)S
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2034(/*)S
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2286(=)S
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2286(=)S
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EP
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/slant 0 def
/height 0 def
630 V
12 B
(228)180 648 A
11 R
2092(File:)S
2325(src/mm/table.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
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(no_sys,)294 1362 A
2034(/*)S
2160(54)S
2286(=)S
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2706(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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(16572)210 648 A
(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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(do_exec,)336 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(16576)210 648 A
(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
(umask)210 2370 A
2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
(chroot)252 2370 A
2706(*/)S
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(do_getset,)420 1362 A
2034(/*)S
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2286(=)S
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2706(*/)S
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(do_getset,)420 1362 A
2034(/*)S
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2286(=)S
(getpgrp)294 2370 A
2706(*/)S
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(16580)210 648 A
1890 V
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(do_ksig,)336 1362 A
2034(/*)S
2160(64)S
2286(=)S
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(signals)294 2622 A
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3462(in)S
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(kernel)252 3756 A
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2034(/*)S
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2286(=)S
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(no_sys,)294 1362 A
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2286(=)S
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2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
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2874(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
(unused)252 2370 A
2706(*/)S
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(no_sys,)294 1362 A
2034(/*)S
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2286(=)S
(unused)252 2370 A
2706(*/)S
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(do_sigaction,)546 1362 A
2034(/*)S
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2286(=)S
(sigaction)378 2370 A
2874(*/)S
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(do_sigsuspend,)588 1362 A
2034(/*)S
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2286(=)S
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2874(*/)S
2700 V
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(do_sigpending,)588 1362 A
2034(/*)S
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2286(=)S
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2874(*/)S
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(do_sigprocmask,)630 1362 A
2034(/*)S
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2286(=)S
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2874(*/)S
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(do_sigreturn,)546 1362 A
2034(/*)S
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2286(=)S
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2874(*/)S
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2034(/*)S
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2286(=)S
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2706(*/)S
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1026(};)S
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3780 V
(src/mm/main.c)546 2034 A
3870 V
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4050 V
(16600)210 648 A
1026(/*)S
(This)168 1152 A
(file)168 1362 A
(contains)336 1572 A
(the)126 1950 A
(main)168 2118 A
(program)294 2328 A
2664(of)S
(the)126 2790 A
(memory)252 2958 A
(manager)294 3252 A
(and)126 3588 A
(some)168 3756 A
(related)294 3966 A
4140 V
(16601)210 648 A
1068(*)S
(procedures.)462 1152 A
(When)168 1698 A
(MINIX)210 1908 A
(starts)252 2160 A
(up,)126 2454 A
(the)126 2622 A
(kernel)252 2790 A
(runs)168 3084 A
(for)126 3294 A
3462(a)S
(little)252 3546 A
(while,)252 3840 A
4230 V
(16602)210 648 A
1068(*)S
(initializing)504 1152 A
(itself)252 1698 A
(and)126 1992 A
(its)126 2160 A
(tasks,)252 2328 A
(and)126 2622 A
(then)168 2790 A
3000(it)S
(runs)168 3126 A
3336(MM)S
(and)126 3462 A
(FS.)126 3630 A
(Both)168 3840 A
4050(MM)S
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1068(*)S
(and)126 1152 A
1320(FS)S
(initialize)420 1446 A
(themselves)420 1908 A
2370(as)S
(far)126 2496 A
2664(as)S
(they)168 2790 A
(can.)168 3000 A
3252(FS)S
(then)168 3378 A
(makes)210 3588 A
3840(a)S
(call)168 3924 A
4134(to)S
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1068(*)S
(MM,)126 1152 A
(because)294 1320 A
1656(MM)S
(has)126 1782 A
1950(to)S
(wait)168 2076 A
(for)126 2286 A
2454(FS)S
2580(to)S
(acquire)294 2706 A
3042(a)S
(RAM)126 3126 A
(disk.)210 3294 A
3588(MM)S
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(for)126 1446 A
(all)126 1614 A
(free)168 1782 A
(memory)252 1992 A
(and)126 2286 A
(starts)252 2454 A
(serving)294 2748 A
(requests.)378 3084 A
4590 V
(16606)210 648 A
1068(*)S
4680 V
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1068(*)S
(The)126 1152 A
(entry)210 1320 A
(points)252 1572 A
(into)168 1866 A
(this)168 2076 A
(file)168 2286 A
(are:)168 2496 A
4770 V
(16608)210 648 A
1068(*)S
(main:)210 1236 A
(starts)252 1698 A
1992(MM)S
(running)294 2118 A
4860 V
(16609)210 648 A
1068(*)S
(reply:)252 1236 A
(reply)210 1698 A
1950(to)S
2076(a)S
(process)294 2160 A
(making)252 2496 A
2790(an)S
2916(MM)S
(system)252 3042 A
(call)168 3336 A
4950 V
(16610)210 648 A
1068(*/)S
5040 V
(16611)210 648 A
5130 V
(16612)210 648 A
(#include)336 1026 A
("mm.h")252 1404 A
5220 V
(16613)210 648 A
(#include)336 1026 A
(<minix/callnr.h>)672 1404 A
5310 V
(16614)210 648 A
(#include)336 1026 A
(<minix/com.h>)546 1404 A
5400 V
(16615)210 648 A
(#include)336 1026 A
(<signal.h>)420 1404 A
5490 V
(16616)210 648 A
(#include)336 1026 A
(<fcntl.h>)378 1404 A
5580 V
(16617)210 648 A
(#include)336 1026 A
(<sys/ioctl.h>)546 1404 A
5670 V
(16618)210 648 A
(#include)336 1026 A
("mproc.h")378 1404 A
5760 V
(16619)210 648 A
(#include)336 1026 A
("param.h")378 1404 A
5850 V
(16620)210 648 A
5940 V
(16621)210 648 A
(FORWARD)294 1026 A
(_PROTOTYPE()462 1362 A
(void)168 1866 A
(get_work,)378 2076 A
((void))252 2496 A
4050();)S
6030 V
(16622)210 648 A
(FORWARD)294 1026 A
(_PROTOTYPE()462 1362 A
(void)168 1866 A
(mm_init,)336 2076 A
((void))252 2454 A
4050();)S
6120 V
(16623)210 648 A
6210 V
(16624)210 648 A
(/*===========================================================================*)3276 1026 A
8418 V
EP
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/slant 0 def
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630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2089(File:)S
2322(src/mm/main.c)S
12 B
(229)180 4248 A
900 V
7 LST
(16625)210 648 A
1068(*)S
(main)168 2370 A
4260(*)S
990 V
(16626)210 648 A
(*===========================================================================*/)3276 1068 A
1080 V
(16627)210 648 A
(PUBLIC)252 1026 A
(void)168 1320 A
(main())252 1530 A
1170 V
(16628)210 648 A
1026({)S
1260 V
(16629)210 648 A
1026(/*)S
(Main)168 1152 A
(routine)294 1362 A
1698(of)S
(the)126 1824 A
(memory)252 1992 A
(manager.)336 2286 A
2664(*/)S
1350 V
(16630)210 648 A
1440 V
(16631)210 648 A
(int)126 1110 A
(error;)252 1278 A
1530 V
(16632)210 648 A
1620 V
(16633)210 648 A
(mm_init();)420 1110 A
2370(/*)S
(initialize)420 2496 A
(memory)252 2958 A
(manager)294 3252 A
(tables)252 3588 A
3882(*/)S
1710 V
(16634)210 648 A
1800 V
(16635)210 648 A
1110(/*)S
(This)168 1236 A
1446(is)S
(MM's)168 1572 A
(main)168 1782 A
(loop-)210 1992 A
(get)126 2286 A
(work)168 2454 A
(and)126 2664 A
2832(do)S
(it,)126 2958 A
(forever)294 3126 A
(and)126 3462 A
(forever.)336 3630 A
4008(*/)S
1890 V
(16636)210 648 A
(while)210 1110 A
((TRUE))252 1362 A
1656({)S
1980 V
(16637)210 648 A
1362(/*)S
(Wait)168 1488 A
(for)126 1698 A
(message.)336 1866 A
2244(*/)S
2070 V
(16638)210 648 A
(get_work();)462 1362 A
2370(/*)S
(wait)168 2496 A
(for)126 2706 A
2874(an)S
3000(MM)S
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(call)168 3420 A
3630(*/)S
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(16639)210 648 A
1362(mp)S
1488(=)S
(&mproc[who];)504 1572 A
2250 V
(16640)210 648 A
2340 V
(16641)210 648 A
1362(/*)S
(Set)126 1488 A
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(flags.)252 1866 A
2160(*/)S
2430 V
(16642)210 648 A
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1614(=)S
(OK;)126 1698 A
2520 V
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(dont_reply)420 1362 A
1824(=)S
(FALSE;)252 1908 A
2610 V
(16644)210 648 A
(err_code)336 1362 A
1740(=)S
(-999;)210 1824 A
2700 V
(16645)210 648 A
2790 V
(16646)210 648 A
1362(/*)S
1488(If)S
(the)126 1614 A
(call)168 1782 A
(number)252 1992 A
2286(is)S
(valid,)252 2412 A
(perform)294 2706 A
(the)126 3042 A
(call.)210 3210 A
3462(*/)S
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1362(if)S
((mm_call)336 1488 A
1866(<)S
1950(0)S
2034(||)S
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2496(>=)S
(NCALLS))294 2622 A
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(16648)210 648 A
(error)210 1698 A
1950(=)S
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3060 V
(16649)210 648 A
(else)168 1362 A
3150 V
(16650)210 648 A
(error)210 1698 A
1950(=)S
((*call_vec[mm_call])();)966 2034 A
3240 V
(16651)210 648 A
3330 V
(16652)210 648 A
1362(/*)S
(Send)168 1488 A
(the)126 1698 A
(results)294 1866 A
(back)168 2202 A
2412(to)S
(the)126 2538 A
(user)168 2706 A
2916(to)S
(indicate)336 3042 A
(completion.)462 3420 A
3924(*/)S
3420 V
(16653)210 648 A
1362(if)S
((dont_reply))504 1488 A
(continue;)378 2034 A
2706(/*)S
2832(no)S
(reply)210 2958 A
(for)126 3210 A
(EXIT)168 3378 A
(and)126 3588 A
(WAIT)168 3756 A
3966(*/)S
3510 V
(16654)210 648 A
1362(if)S
((mm_call)336 1488 A
1866(==)S
(EXEC)168 1992 A
2202(&&)S
(error)210 2328 A
2580(==)S
(OK))126 2706 A
(continue;)378 2874 A
3600 V
(16655)210 648 A
(reply(who,)420 1362 A
(error,)252 1824 A
(result2,)336 2118 A
(res_ptr);)378 2496 A
3690 V
(16656)210 648 A
1110(})S
3780 V
(16657)210 648 A
1026(})S
4050 V
(16660)210 648 A
(/*===========================================================================*)3276 1026 A
4140 V
(16661)210 648 A
1068(*)S
(get_work)336 2370 A
4260(*)S
4230 V
(16662)210 648 A
(*===========================================================================*/)3276 1068 A
4320 V
(16663)210 648 A
(PRIVATE)294 1026 A
(void)168 1362 A
(get_work())420 1572 A
4410 V
(16664)210 648 A
1026({)S
4500 V
(16665)210 648 A
1026(/*)S
(Wait)168 1152 A
(for)126 1362 A
(the)126 1530 A
(next)168 1698 A
(message)294 1908 A
(and)126 2244 A
(extract)294 2412 A
(useful)252 2748 A
(information)462 3042 A
(from)168 3546 A
(it.)126 3756 A
3924(*/)S
4590 V
(16666)210 648 A
4680 V
(16667)210 648 A
1110(if)S
((receive(ANY,)546 1236 A
(&mm_in))294 1824 A
2160(!=)S
(OK))126 2286 A
(panic("MM)378 2454 A
(receive)294 2874 A
(error",)294 3210 A
(NO_NUM);)336 3546 A
4770 V
(16668)210 648 A
(who)126 1110 A
1278(=)S
(mm_in.m_source;)630 1362 A
2370(/*)S
(who)126 2496 A
(sent)168 2664 A
(the)126 2874 A
(message)294 3042 A
3378(*/)S
4860 V
(16669)210 648 A
(mm_call)294 1110 A
1446(=)S
(mm_in.m_type;)546 1530 A
2370(/*)S
(system)252 2496 A
(call)168 2790 A
(number)252 3000 A
3294(*/)S
4950 V
(16670)210 648 A
1026(})S
5220 V
(16673)210 648 A
(/*===========================================================================*)3276 1026 A
5310 V
(16674)210 648 A
1068(*)S
(reply)210 2370 A
4260(*)S
5400 V
(16675)210 648 A
(*===========================================================================*/)3276 1068 A
5490 V
(16676)210 648 A
(PUBLIC)252 1026 A
(void)168 1320 A
(reply(proc_nr,)588 1530 A
(result,)294 2160 A
(res2,)210 2496 A
(respt))252 2748 A
5580 V
(16677)210 648 A
(int)126 1026 A
(proc_nr;)336 1194 A
2370(/*)S
(process)294 2496 A
2832(to)S
(reply)210 2958 A
3210(to)S
3336(*/)S
5670 V
(16678)210 648 A
(int)126 1026 A
(result;)294 1194 A
2370(/*)S
(result)252 2496 A
2790(of)S
(the)126 2916 A
(call)168 3084 A
((usually)336 3294 A
3672(OK)S
3798(or)S
(error)210 3924 A
(#)*/)168 4176 A
5760 V
(16679)210 648 A
(int)126 1026 A
(res2;)210 1194 A
2370(/*)S
(secondary)378 2496 A
(result)252 2916 A
3210(*/)S
5850 V
(16680)210 648 A
(char)168 1026 A
(*respt;)294 1236 A
2370(/*)S
(result)252 2496 A
2790(if)S
(pointer)294 2916 A
3252(*/)S
5940 V
(16681)210 648 A
1026({)S
6030 V
(16682)210 648 A
1026(/*)S
(Send)168 1152 A
1362(a)S
(reply)210 1446 A
1698(to)S
1824(a)S
(user)168 1908 A
(process.)336 2118 A
2496(*/)S
6120 V
(16683)210 648 A
6210 V
(16684)210 648 A
(register)336 1110 A
(struct)252 1488 A
(mproc)210 1782 A
(*proc_ptr;)420 2034 A
8418 V
EP
%%Page: 230 230
BP
/slant 0 def
/height 0 def
630 V
12 B
(230)180 648 A
11 R
2089(File:)S
2322(src/mm/main.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
(16685)210 648 A
990 V
(16686)210 648 A
(proc_ptr)336 1110 A
1488(=)S
(&mproc[proc_nr];)672 1572 A
1080 V
(16687)210 648 A
1110(/*)S
1170 V
(16688)210 648 A
1152(*)S
1236(To)S
(make)168 1362 A
1572(MM)S
(robust,)294 1698 A
(check)210 2034 A
2286(to)S
(see)126 2412 A
2580(if)S
(destination)462 2706 A
3210(is)S
(still)210 3336 A
(alive.)252 3588 A
(This)168 3924 A
1260 V
(16689)210 648 A
1152(*)S
(validy)252 1236 A
(check)210 1530 A
(must)168 1782 A
1992(be)S
(skipped)294 2118 A
2454(if)S
(the)126 2580 A
(caller)252 2748 A
3042(is)S
3168(a)S
(task.)210 3252 A
1350 V
(16690)210 648 A
1152(*/)S
1440 V
(16691)210 648 A
1110(if)S
(((who)210 1236 A
(>=0))168 1488 A
1698(&&)S
(((proc_ptr->mp_flags&IN_USE))1176 1824 A
3042(==)S
3168(0)S
3252(||)S
1530 V
(16692)210 648 A
((proc_ptr->mp_flags&HANGING))))1260 1362 A
(return;)294 2664 A
1620 V
(16693)210 648 A
1710 V
(16694)210 648 A
(reply_type)420 1110 A
1572(=)S
(result;)294 1656 A
1800 V
(16695)210 648 A
(reply_i1)336 1110 A
1488(=)S
(res2;)210 1572 A
1890 V
(16696)210 648 A
(reply_p1)336 1110 A
1488(=)S
(respt;)252 1572 A
1980 V
(16697)210 648 A
1110(if)S
((send(proc_nr,)588 1236 A
(&mm_out))336 1866 A
2244(!=)S
(OK))126 2370 A
(panic("MM)378 2538 A
(can't)210 2958 A
(reply",)294 3210 A
(NO_NUM);)336 3546 A
2070 V
(16698)210 648 A
1026(})S
2340 V
(16701)210 648 A
(/*===========================================================================*)3276 1026 A
2430 V
(16702)210 648 A
1068(*)S
(mm_init)294 2370 A
4260(*)S
2520 V
(16703)210 648 A
(*===========================================================================*/)3276 1068 A
2610 V
(16704)210 648 A
(PRIVATE)294 1026 A
(void)168 1362 A
(mm_init())378 1572 A
2700 V
(16705)210 648 A
1026({)S
2790 V
(16706)210 648 A
1026(/*)S
(Initialize)420 1152 A
(the)126 1614 A
(memory)252 1782 A
(manager.)336 2076 A
2454(*/)S
2880 V
(16707)210 648 A
2970 V
(16708)210 648 A
(static)252 1110 A
(char)168 1404 A
(core_sigs[])462 1614 A
2118(=)S
2202({)S
3060 V
(16709)210 648 A
(SIGQUIT,)336 1362 A
(SIGILL,)294 1740 A
(SIGTRAP,)336 2076 A
(SIGABRT,)336 2454 A
3150 V
(16710)210 648 A
(SIGEMT,)294 1362 A
(SIGFPE,)294 1698 A
(SIGUSR1,)336 2034 A
(SIGSEGV,)336 2412 A
3240 V
(16711)210 648 A
(SIGUSR2,)336 1362 A
1740(0)S
1824(};)S
3330 V
(16712)210 648 A
(register)336 1110 A
(int)126 1488 A
(proc_nr;)336 1656 A
3420 V
(16713)210 648 A
(register)336 1110 A
(struct)252 1488 A
(mproc)210 1782 A
(*rmp;)210 2034 A
3510 V
(16714)210 648 A
(register)336 1110 A
(char)168 1488 A
(*sig_ptr;)378 1698 A
3600 V
(16715)210 648 A
(phys_clicks)462 1110 A
(ram_clicks,)462 1614 A
(total_clicks,)546 2118 A
(minix_clicks,)546 2706 A
(free_clicks,)504 3294 A
(dummy;)252 3840 A
3690 V
(16716)210 648 A
(message)294 1110 A
(mess;)210 1446 A
3780 V
(16717)210 648 A
(struct)252 1110 A
(mem_map)294 1404 A
(kernel_map[NR_SEGS];)840 1740 A
3870 V
(16718)210 648 A
(int)126 1110 A
(mem;)168 1278 A
3960 V
(16719)210 648 A
4050 V
(16720)210 648 A
1110(/*)S
(Build)210 1236 A
(the)126 1488 A
(set)126 1656 A
1824(of)S
(signals)294 1950 A
(which)210 2286 A
(cause)210 2538 A
(core)168 2790 A
(dumps.)252 3000 A
3294(Do)S
3420(it)S
(the)126 3546 A
(Posix)210 3714 A
4140 V
(16721)210 648 A
1152(*)S
(way,)168 1236 A
1446(so)S
1572(no)S
(knowledge)378 1698 A
2118(of)S
(bit)126 2244 A
(positions)378 2412 A
2832(is)S
(needed.)294 2958 A
4230 V
(16722)210 648 A
1152(*/)S
4320 V
(16723)210 648 A
(sigemptyset(&core_sset);)1008 1110 A
4410 V
(16724)210 648 A
(for)126 1110 A
((sig_ptr)336 1278 A
1656(=)S
(core_sigs;)420 1740 A
(*sig_ptr)336 2202 A
2580(!=)S
2706(0;)S
(sig_ptr++))420 2832 A
4500 V
(16725)210 648 A
(sigaddset(&core_sset,)882 1362 A
(*sig_ptr);)420 2286 A
4590 V
(16726)210 648 A
4680 V
(16727)210 648 A
1110(/*)S
(Get)126 1236 A
(the)126 1404 A
(memory)252 1572 A
(map)126 1866 A
2034(of)S
(the)126 2160 A
(kernel)252 2328 A
2622(to)S
(see)126 2748 A
(how)126 2916 A
(much)168 3084 A
(memory)252 3294 A
3588(it)S
(uses,)210 3714 A
4770 V
(16728)210 648 A
1152(*)S
(including)378 1236 A
(the)126 1656 A
(gap)126 1824 A
(between)294 1992 A
(address)294 2328 A
2664(0)S
(and)126 2748 A
(the)126 2916 A
(start)210 3084 A
3336(of)S
(the)126 3462 A
(kernel.)294 3630 A
4860 V
(16729)210 648 A
1152(*/)S
4950 V
(16730)210 648 A
(sys_getmap(SYSTASK,)798 1110 A
(kernel_map);)504 1950 A
5040 V
(16731)210 648 A
(minix_clicks)504 1110 A
1656(=)S
(kernel_map[S].mem_phys)924 1740 A
2706(+)S
(kernel_map[S].mem_len;)924 2790 A
5130 V
(16732)210 648 A
5220 V
(16733)210 648 A
1110(/*)S
(Initialize)420 1236 A
(MM's)168 1698 A
(tables.)294 1908 A
2244(*/)S
5310 V
(16734)210 648 A
(for)126 1110 A
((proc_nr)336 1278 A
1656(=)S
1740(0;)S
(proc_nr)294 1866 A
2202(<=)S
(INIT_PROC_NR;)546 2328 A
(proc_nr++))420 2916 A
3378({)S
5400 V
(16735)210 648 A
(rmp)126 1362 A
1530(=)S
(&mproc[proc_nr];)672 1614 A
5490 V
(16736)210 648 A
(rmp->mp_flags)546 1362 A
1950(|=)S
(IN_USE;)294 2076 A
5580 V
(16737)210 648 A
(sys_getmap(proc_nr,)798 1362 A
(rmp->mp_seg);)546 2202 A
5670 V
(16738)210 648 A
1362(if)S
((rmp->mp_seg[T].mem_len)966 1488 A
2496(!=)S
2622(0))S
(rmp->mp_flags)546 2748 A
3336(|=)S
(SEPARATE;)378 3462 A
5760 V
(16739)210 648 A
(minix_clicks)504 1362 A
1908(+=)S
((rmp->mp_seg[S].mem_phys)1008 2034 A
3084(+)S
(rmp->mp_seg[S].mem_len))966 3168 A
5850 V
(16740)210 648 A
2370(-)S
(rmp->mp_seg[T].mem_phys;)1008 2454 A
5940 V
(16741)210 648 A
1110(})S
6030 V
(16742)210 648 A
(mproc[INIT_PROC_NR].mp_pid)1092 1110 A
2244(=)S
(INIT_PID;)378 2328 A
6120 V
(16743)210 648 A
(sigemptyset(&mproc[INIT_PROC_NR].mp_ignore);)1848 1110 A
6210 V
(16744)210 648 A
(sigemptyset(&mproc[INIT_PROC_NR].mp_catch);)1806 1110 A
8418 V
EP
%%Page: 231 231
BP
/slant 0 def
/height 0 def
630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2089(File:)S
2322(src/mm/main.c)S
12 B
(231)180 4248 A
900 V
7 LST
(16745)210 648 A
(procs_in_use)504 1110 A
1656(=)S
(LOW_USER)336 1740 A
2118(+)S
2202(1;)S
990 V
(16746)210 648 A
1080 V
(16747)210 648 A
1110(/*)S
(Wait)168 1236 A
(for)126 1446 A
1614(FS)S
1740(to)S
(send)168 1866 A
2076(a)S
(message)294 2160 A
(telling)294 2496 A
(the)126 2832 A
(RAM)126 3000 A
(disk)168 3168 A
(size)168 3378 A
(then)168 3588 A
3798(go)S
("on-line".)420 3924 A
1170 V
(16748)210 648 A
1152(*/)S
1260 V
(16749)210 648 A
1110(if)S
((receive(FS_PROC_NR,)840 1236 A
(&mess))252 2118 A
2412(!=)S
(OK))126 2538 A
1350 V
(16750)210 648 A
(panic("MM)378 1362 A
(can't)210 1782 A
(obtain)252 2034 A
(RAM)126 2328 A
(disk)168 2496 A
(size)168 2706 A
(from)168 2916 A
(FS",)168 3126 A
(NO_NUM);)336 3336 A
1440 V
(16751)210 648 A
1530 V
(16752)210 648 A
(ram_clicks)420 1110 A
1572(=)S
(mess.m1_i1;)462 1656 A
1620 V
(16753)210 648 A
1710 V
(16754)210 648 A
1110(/*)S
(Initialize)420 1236 A
(tables)252 1698 A
1992(to)S
(all)126 2118 A
(physical)336 2286 A
(mem.)168 2664 A
2874(*/)S
1800 V
(16755)210 648 A
(mem_init(&total_clicks,)966 1110 A
(&free_clicks);)588 2118 A
1890 V
(16756)210 648 A
1980 V
(16757)210 648 A
1110(/*)S
(Print)210 1236 A
(memory)252 1488 A
(information.)504 1782 A
2328(*/)S
2070 V
(16758)210 648 A
(printf("\nMemory)672 1110 A
(size)168 1824 A
(=%5dK)210 2034 A
2370(",)S
(click_to_round_k(total_clicks));)1344 2496 A
2160 V
(16759)210 648 A
(printf("MINIX)546 1110 A
(=%4dK)210 1698 A
2034(",)S
(click_to_round_k(minix_clicks));)1344 2160 A
2250 V
(16760)210 648 A
(printf("RAM)462 1110 A
(disk)168 1614 A
(=%5dK)210 1824 A
2160(",)S
(click_to_round_k(ram_clicks));)1260 2286 A
2340 V
(16761)210 648 A
(printf("Available)714 1110 A
(=%5dK\n\n",)462 1866 A
(click_to_round_k(free_clicks));)1302 2370 A
2430 V
(16762)210 648 A
2520 V
(16763)210 648 A
1110(/*)S
(Tell)168 1236 A
1446(FS)S
1572(to)S
(continue.)378 1698 A
2118(*/)S
2610 V
(16764)210 648 A
1110(if)S
((send(FS_PROC_NR,)714 1236 A
(&mess))252 1992 A
2286(!=)S
(OK))126 2412 A
2700 V
(16765)210 648 A
(panic("MM)378 1362 A
(can't)210 1782 A
(sync)168 2034 A
2244(up)S
(with)168 2370 A
(FS",)168 2580 A
(NO_NUM);)336 2790 A
2790 V
(16766)210 648 A
2880 V
(16767)210 648 A
1110(/*)S
(Tell)168 1236 A
(the)126 1446 A
(memory)252 1614 A
(task)168 1908 A
(where)210 2118 A
2370(my)S
(process)294 2496 A
(table)210 2832 A
3084(is)S
(for)126 3210 A
(the)126 3378 A
(sake)168 3546 A
3756(of)S
(ps(1).)252 3882 A
4176(*/)S
2970 V
(16768)210 648 A
1110(if)S
(((mem)210 1236 A
1488(=)S
(open("/dev/mem",)672 1572 A
(O_RDWR)))336 2286 A
2664(!=)S
(-1))126 2790 A
2958({)S
3060 V
(16769)210 648 A
(ioctl(mem,)420 1362 A
(MIOCSPSINFO,)504 1824 A
((void)210 2370 A
2622(*))S
(mproc);)294 2748 A
3150 V
(16770)210 648 A
(close(mem);)462 1362 A
3240 V
(16771)210 648 A
1110(})S
3330 V
(16772)210 648 A
1026(})S
3690 V
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
3780 V
(src/mm/forkexit.c)714 2034 A
3870 V
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
4050 V
(16800)210 648 A
1026(/*)S
(This)168 1152 A
(file)168 1362 A
(deals)210 1572 A
(with)168 1824 A
(creating)336 2034 A
(processes)378 2412 A
((via)168 2832 A
(FORK))210 3042 A
(and)126 3294 A
(deleting)336 3462 A
(them)168 3840 A
((via)168 4050 A
4140 V
(16801)210 648 A
1068(*)S
(EXIT/WAIT).)462 1152 A
(When)168 1698 A
1908(a)S
(process)294 1992 A
(forks,)252 2328 A
2622(a)S
(new)126 2706 A
(slot)168 2874 A
3084(in)S
(the)126 3210 A
('mproc')294 3378 A
(table)210 3714 A
3966(is)S
4230 V
(16802)210 648 A
1068(*)S
(allocated)378 1152 A
(for)126 1572 A
(it,)126 1740 A
(and)126 1908 A
2076(a)S
(copy)168 2160 A
2370(of)S
(the)126 2496 A
(parent's)336 2664 A
(core)168 3042 A
(image)210 3252 A
3504(is)S
(made)168 3630 A
(for)126 3840 A
(the)126 4008 A
4320 V
(16803)210 648 A
1068(*)S
(child.)252 1152 A
(Then)168 1488 A
(the)126 1698 A
(kernel)252 1866 A
(and)126 2160 A
(file)168 2328 A
(system)252 2538 A
(are)126 2832 A
(informed.)378 3000 A
3462(A)S
(process)294 3546 A
3882(is)S
(removed)294 4008 A
4410 V
(16804)210 648 A
1068(*)S
(from)168 1152 A
(the)126 1362 A
('mproc')294 1530 A
(table)210 1866 A
(when)168 2118 A
(two)126 2328 A
(events)252 2496 A
(have)168 2790 A
(occurred:)378 3000 A
((1))126 3420 A
3588(it)S
(has)126 3714 A
(exited)252 3882 A
4176(or)S
4500 V
(16805)210 648 A
1068(*)S
(been)168 1152 A
(killed)252 1362 A
1656(by)S
1782(a)S
(signal,)294 1866 A
(and)126 2202 A
((2))126 2370 A
(the)126 2538 A
(parent)252 2706 A
(has)126 3000 A
(done)168 3168 A
3378(a)S
(WAIT.)210 3462 A
3756(If)S
(the)126 3882 A
(process)294 4050 A
4590 V
(16806)210 648 A
1068(*)S
(exits)210 1152 A
(first,)252 1404 A
1698(it)S
(continues)378 1824 A
2244(to)S
(occupy)252 2370 A
2664(a)S
(slot)168 2748 A
(until)210 2958 A
(the)126 3210 A
(parent)252 3378 A
(does)168 3672 A
3882(a)S
(WAIT.)210 3966 A
4680 V
(16807)210 648 A
1068(*)S
4770 V
(16808)210 648 A
1068(*)S
(The)126 1152 A
(entry)210 1320 A
(points)252 1572 A
(into)168 1866 A
(this)168 2076 A
(file)168 2286 A
(are:)168 2496 A
4860 V
(16809)210 648 A
1068(*)S
(do_fork:)336 1236 A
(perform)294 1740 A
(the)126 2076 A
(FORK)168 2244 A
(system)252 2454 A
(call)168 2748 A
4950 V
(16810)210 648 A
1068(*)S
(do_mm_exit:)462 1236 A
(perform)294 1740 A
(the)126 2076 A
(EXIT)168 2244 A
(system)252 2454 A
(call)168 2748 A
((by)126 2958 A
(calling)294 3126 A
(mm_exit()))420 3462 A
5040 V
(16811)210 648 A
1068(*)S
(mm_exit:)336 1236 A
(actually)336 1740 A
2118(do)S
(the)126 2244 A
(exiting)294 2412 A
5130 V
(16812)210 648 A
1068(*)S
(do_wait:)336 1236 A
(perform)294 1740 A
(the)126 2076 A
(WAITPID)294 2244 A
2580(or)S
(WAIT)168 2706 A
(system)252 2916 A
(call)168 3210 A
5220 V
(16813)210 648 A
1068(*/)S
5310 V
(16814)210 648 A
5400 V
(16815)210 648 A
5490 V
(16816)210 648 A
(#include)336 1026 A
("mm.h")252 1404 A
5580 V
(16817)210 648 A
(#include)336 1026 A
(<sys/wait.h>)504 1404 A
5670 V
(16818)210 648 A
(#include)336 1026 A
(<minix/callnr.h>)672 1404 A
5760 V
(16819)210 648 A
(#include)336 1026 A
(<signal.h>)420 1404 A
5850 V
(16820)210 648 A
(#include)336 1026 A
("mproc.h")378 1404 A
5940 V
(16821)210 648 A
(#include)336 1026 A
("param.h")378 1404 A
6030 V
(16822)210 648 A
6120 V
(16823)210 648 A
(#define)294 1026 A
(LAST_FEW)336 1362 A
2202(2)S
2370(/*)S
(last)168 2496 A
(few)126 2706 A
(slots)210 2874 A
(reserved)336 3126 A
(for)126 3504 A
(superuser)378 3672 A
4092(*/)S
6210 V
(16824)210 648 A
8418 V
EP
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/slant 0 def
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630 V
12 B
(232)180 648 A
11 R
2025(File:)S
2258(src/mm/forkexit.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
(16825)210 648 A
(PRIVATE)294 1026 A
(pid_t)210 1362 A
(next_pid)336 1614 A
1992(=)S
(INIT_PID+1;)462 2076 A
2706(/*)S
(next)168 2832 A
(pid)126 3042 A
3210(to)S
3336(be)S
(assigned)336 3462 A
3840(*/)S
990 V
(16826)210 648 A
1080 V
(16827)210 648 A
(FORWARD)294 1026 A
(_PROTOTYPE)420 1362 A
((void)210 1824 A
(cleanup,)336 2076 A
((register)378 2454 A
(struct)252 2874 A
(mproc)210 3168 A
(*child))294 3420 A
3756();)S
1170 V
(16828)210 648 A
1260 V
(16829)210 648 A
(/*===========================================================================*)3276 1026 A
1350 V
(16830)210 648 A
1068(*)S
(do_fork)294 2370 A
4260(*)S
1440 V
(16831)210 648 A
(*===========================================================================*/)3276 1068 A
1530 V
(16832)210 648 A
(PUBLIC)252 1026 A
(int)126 1320 A
(do_fork())378 1488 A
1620 V
(16833)210 648 A
1026({)S
1710 V
(16834)210 648 A
1026(/*)S
(The)126 1152 A
(process)294 1320 A
(pointed)294 1656 A
1992(to)S
2118(by)S
('mp')168 2244 A
(has)126 2454 A
(forked.)294 2622 A
(Create)252 3000 A
3294(a)S
(child)210 3378 A
(process.)336 3630 A
4008(*/)S
1800 V
(16835)210 648 A
1890 V
(16836)210 648 A
(register)336 1110 A
(struct)252 1488 A
(mproc)210 1782 A
(*rmp;)210 2034 A
2370(/*)S
(pointer)294 2496 A
2832(to)S
(parent)252 2958 A
3252(*/)S
1980 V
(16837)210 648 A
(register)336 1110 A
(struct)252 1488 A
(mproc)210 1782 A
(*rmc;)210 2034 A
2370(/*)S
(pointer)294 2496 A
2832(to)S
(child)210 2958 A
3210(*/)S
2070 V
(16838)210 648 A
(int)126 1110 A
1278(i,)S
(child_nr,)378 1404 A
1824(t;)S
2160 V
(16839)210 648 A
(phys_clicks)462 1110 A
(prog_clicks,)504 1614 A
(child_base)420 2160 A
2622(=)S
2706(0;)S
2250 V
(16840)210 648 A
(phys_bytes)420 1110 A
(prog_bytes,)462 1572 A
(parent_abs,)462 2076 A
(child_abs;)420 2580 A
3042(/*)S
(Intel)210 3168 A
(only)168 3420 A
3630(*/)S
2340 V
(16841)210 648 A
2430 V
(16842)210 648 A
1068(/*)S
1194(If)S
(tables)252 1320 A
(might)210 1614 A
(fill)168 1866 A
2076(up)S
(during)252 2202 A
(FORK,)210 2496 A
(don't)210 2748 A
(even)168 3000 A
(start)210 3210 A
(since)210 3462 A
(recovery)336 3714 A
(half)168 4092 A
2520 V
(16843)210 648 A
1110(*)S
(way)126 1194 A
(through)294 1362 A
1698(is)S
(such)168 1824 A
2034(a)S
(nuisance.)378 2118 A
2610 V
(16844)210 648 A
1110(*/)S
2700 V
(16845)210 648 A
(rmp)126 1110 A
1278(=)S
(mp;)126 1362 A
2790 V
(16846)210 648 A
1110(if)S
((procs_in_use)546 1236 A
1824(==)S
(NR_PROCS))378 1950 A
(return(EAGAIN);)630 2370 A
2880 V
(16847)210 648 A
1110(if)S
((procs_in_use)546 1236 A
1824(>=)S
(NR_PROCS-LAST_FEW)714 1950 A
2706(&&)S
(rmp->mp_effuid)588 2832 A
3462(!=)S
(0)return(EAGAIN);)714 3588 A
2970 V
(16848)210 648 A
3060 V
(16849)210 648 A
1110(/*)S
(Determine)378 1236 A
(how)126 1656 A
(much)168 1824 A
(memory)252 2034 A
2328(to)S
(allocate.)378 2454 A
(Only)168 2916 A
(the)126 3126 A
(data)168 3294 A
(and)126 3504 A
(stack)210 3672 A
(need)168 3924 A
4134(to)S
3150 V
(16850)210 648 A
1152(*)S
1236(be)S
(copied,)294 1362 A
(because)294 1698 A
(the)126 2034 A
(text)168 2202 A
(segment)294 2412 A
2748(is)S
(either)252 2874 A
(shared)252 3168 A
3462(or)S
3588(of)S
(zero)168 3714 A
(length.)294 3924 A
3240 V
(16851)210 648 A
1152(*/)S
3330 V
(16852)210 648 A
(prog_clicks)462 1110 A
1614(=)S
((phys_clicks))546 1698 A
(rmp->mp_seg[S].mem_len;)966 2286 A
3420 V
(16853)210 648 A
(prog_clicks)462 1110 A
1614(+=)S
((rmp->mp_seg[S].mem_vir)966 1740 A
2748(-)S
(rmp->mp_seg[D].mem_vir);)1008 2832 A
3510 V
(16854)210 648 A
(prog_bytes)420 1110 A
1572(=)S
((phys_bytes))504 1656 A
(prog_clicks)462 2202 A
2706(<<)S
(CLICK_SHIFT;)504 2832 A
3600 V
(16855)210 648 A
1110(if)S
1236(()S
((child_base)462 1320 A
1824(=)S
(alloc_mem(prog_clicks)))966 1908 A
2916(==)S
(NO_MEM))294 3042 A
(return(EAGAIN);)630 3378 A
3690 V
(16856)210 648 A
3780 V
(16857)210 648 A
1110(/*)S
(Create)252 1236 A
1530(a)S
(copy)168 1614 A
1824(of)S
(the)126 1950 A
(parent's)336 2118 A
(core)168 2496 A
(image)210 2706 A
(for)126 2958 A
(the)126 3126 A
(child.)252 3294 A
3588(*/)S
3870 V
(16858)210 648 A
(child_abs)378 1110 A
1530(=)S
((phys_bytes))504 1614 A
(child_base)420 2160 A
2622(<<)S
(CLICK_SHIFT;)504 2748 A
3960 V
(16859)210 648 A
(parent_abs)420 1110 A
1572(=)S
((phys_bytes))504 1656 A
(rmp->mp_seg[D].mem_phys)966 2202 A
3210(<<)S
(CLICK_SHIFT;)504 3336 A
4050 V
(16860)210 648 A
1110(i)S
1194(=)S
(sys_copy(ABS,)546 1278 A
1866(0,)S
(parent_abs,)462 1992 A
(ABS,)168 2496 A
2706(0,)S
(child_abs,)420 2832 A
(prog_bytes);)504 3294 A
4140 V
(16861)210 648 A
1110(if)S
1236((i)S
1362(<)S
1446(0))S
(panic("do_fork)588 1572 A
(can't)210 2202 A
(copy",)252 2454 A
(i);)126 2748 A
4230 V
(16862)210 648 A
4320 V
(16863)210 648 A
1110(/*)S
(Find)168 1236 A
1446(a)S
(slot)168 1530 A
1740(in)S
('mproc')294 1866 A
(for)126 2202 A
(the)126 2370 A
(child)210 2538 A
(process.)336 2790 A
3210(A)S
(slot)168 3294 A
(must)168 3504 A
(exist.)252 3714 A
4008(*/)S
4410 V
(16864)210 648 A
(for)126 1110 A
((rmc)168 1278 A
1488(=)S
(&mproc[0];)420 1572 A
(rmc)126 2034 A
2202(<)S
(&mproc[NR_PROCS];)714 2286 A
(rmc++))252 3042 A
4500 V
(16865)210 648 A
1362(if)S
1488(()S
((rmc->mp_flags)588 1572 A
2202(&)S
(IN_USE))294 2286 A
2622(==)S
2748(0))S
(break;)252 2874 A
4590 V
(16866)210 648 A
4680 V
(16867)210 648 A
1110(/*)S
(Set)126 1236 A
1404(up)S
(the)126 1530 A
(child)210 1698 A
(and)126 1950 A
(its)126 2118 A
(memory)252 2286 A
(map;)168 2580 A
(copy)168 2790 A
(its)126 3000 A
('mproc')294 3168 A
(slot)168 3504 A
(from)168 3714 A
(parent.)294 3924 A
4260(*/)S
4770 V
(16868)210 648 A
(child_nr)336 1110 A
1488(=)S
((int)(rmc)378 1572 A
1992(-)S
(mproc);)294 2076 A
2706(/*)S
(slot)168 2832 A
(number)252 3042 A
3336(of)S
(the)126 3462 A
(child)210 3630 A
3882(*/)S
4860 V
(16869)210 648 A
(procs_in_use++;)630 1110 A
4950 V
(16870)210 648 A
(*rmc)168 1110 A
1320(=)S
(*rmp;)210 1404 A
2370(/*)S
(copy)168 2496 A
(parent's)336 2706 A
(process)294 3084 A
(slot)168 3420 A
3630(to)S
(child's)294 3756 A
4092(*/)S
5040 V
(16871)210 648 A
5130 V
(16872)210 648 A
(rmc->mp_parent)588 1110 A
1740(=)S
(who;)168 1824 A
2370(/*)S
(record)252 2496 A
(child's)294 2790 A
(parent)252 3126 A
3420(*/)S
5220 V
(16873)210 648 A
(rmc->mp_flags)546 1110 A
1698(&=)S
(304TRACED;)336 1824 A
2370(/*)S
(child)210 2496 A
(does)168 2748 A
(not)126 2958 A
(inherit)294 3126 A
(trace)210 3462 A
(status)252 3714 A
4008(*/)S
5310 V
(16874)210 648 A
1110(/*)S
1236(A)S
(separate)336 1320 A
(I&D)126 1698 A
(child)210 1866 A
(keeps)210 2118 A
(the)126 2370 A
(parents)294 2538 A
(text)168 2874 A
(segment.)336 3084 A
(The)126 3504 A
(data)168 3672 A
(and)126 3882 A
(stack)210 4050 A
5400 V
(16875)210 648 A
1152(*)S
(segments)336 1236 A
(must)168 1614 A
(refer)210 1824 A
2076(to)S
(the)126 2202 A
(new)126 2370 A
(copy.)210 2538 A
5490 V
(16876)210 648 A
1152(*/)S
5580 V
(16877)210 648 A
1110(if)S
((!(rmc->mp_flags)672 1236 A
1950(&)S
(SEPARATE)))420 2034 A
(rmc->mp_seg[T].mem_phys)966 2496 A
3504(=)S
(child_base;)462 3588 A
5670 V
(16878)210 648 A
(rmc->mp_seg[D].mem_phys)966 1110 A
2118(=)S
(child_base;)462 2202 A
5760 V
(16879)210 648 A
(rmc->mp_seg[S].mem_phys)966 1110 A
2118(=)S
(rmc->mp_seg[D].mem_phys)966 2202 A
3210(+)S
5850 V
(16880)210 648 A
((rmp->mp_seg[S].mem_vir)966 2034 A
3042(-)S
(rmp->mp_seg[D].mem_vir);)1008 3126 A
5940 V
(16881)210 648 A
(rmc->mp_exitstatus)756 1110 A
1908(=)S
1992(0;)S
6030 V
(16882)210 648 A
(rmc->mp_sigstatus)714 1110 A
1866(=)S
1950(0;)S
6120 V
(16883)210 648 A
6210 V
(16884)210 648 A
1110(/*)S
(Find)168 1236 A
1446(a)S
(free)168 1530 A
(pid)126 1740 A
(for)126 1908 A
(the)126 2076 A
(child)210 2244 A
(and)126 2496 A
(put)126 2664 A
2832(it)S
2958(in)S
(the)126 3084 A
(table.)252 3252 A
3546(*/)S
8418 V
EP
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/slant 0 def
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630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2025(File:)S
2258(src/mm/forkexit.c)S
12 B
(233)180 4248 A
900 V
7 LST
(16885)210 648 A
1110(do)S
1236({)S
990 V
(16886)210 648 A
1362(t)S
1446(=)S
1530(0;)S
2370(/*)S
('t')126 2496 A
2664(=)S
2748(0)S
(means)210 2832 A
(pid)126 3084 A
(still)210 3252 A
(free)168 3504 A
3714(*/)S
1080 V
(16887)210 648 A
(next_pid)336 1362 A
1740(=)S
((next_pid)378 1824 A
2244(<)S
(30000)210 2328 A
2580(?)S
(next_pid)336 2664 A
3042(+)S
3126(1)S
3210(:)S
(INIT_PID)336 3294 A
3672(+)S
(1);)126 3756 A
1170 V
(16888)210 648 A
(for)126 1362 A
((rmp)168 1530 A
1740(=)S
(&mproc[0];)420 1824 A
(rmp)126 2286 A
2454(<)S
(&mproc[NR_PROCS];)714 2538 A
(rmp++))252 3294 A
1260 V
(16889)210 648 A
1698(if)S
((rmp->mp_pid)504 1824 A
2370(==)S
(next_pid)336 2496 A
2874(||)S
(rmp->mp_procgrp)630 3000 A
3672(==)S
(next_pid))378 3798 A
4218({)S
1350 V
(16890)210 648 A
2034(t)S
2118(=)S
2202(1;)S
1440 V
(16891)210 648 A
(break;)252 2034 A
1530 V
(16892)210 648 A
1698(})S
1620 V
(16893)210 648 A
(rmc->mp_pid)462 1362 A
1866(=)S
(next_pid;)378 1950 A
2370(/*)S
(assign)252 2496 A
(pid)126 2790 A
2958(to)S
(child)210 3084 A
3336(*/)S
1710 V
(16894)210 648 A
1110(})S
(while)210 1194 A
((t);)168 1446 A
1800 V
(16895)210 648 A
1890 V
(16896)210 648 A
1110(/*)S
(Tell)168 1236 A
(kernel)252 1446 A
(and)126 1740 A
(file)168 1908 A
(system)252 2118 A
(about)210 2412 A
(the)126 2664 A
((now)168 2832 A
(successful))462 3042 A
(FORK.)210 3546 A
3798(*/)S
1980 V
(16897)210 648 A
(sys_fork(who,)546 1110 A
(child_nr,)378 1698 A
(rmc->mp_pid,)504 2118 A
(child_base);)504 2664 A
3210(/*)S
(child_base)420 3336 A
3798(is)S
(68K)126 3924 A
(only*/)252 4092 A
2070 V
(16898)210 648 A
(tell_fs(FORK,)546 1110 A
(who,)168 1698 A
(child_nr,)378 1908 A
(rmc->mp_pid);)546 2328 A
2160 V
(16899)210 648 A
2250 V
(16900)210 648 A
1110(/*)S
(Report)252 1236 A
(child's)294 1530 A
(memory)252 1866 A
(map)126 2160 A
2328(to)S
(kernel.)294 2454 A
2790(*/)S
2340 V
(16901)210 648 A
(sys_newmap(child_nr,)840 1110 A
(rmc->mp_seg);)546 1992 A
2430 V
(16902)210 648 A
2520 V
(16903)210 648 A
1110(/*)S
(Reply)210 1236 A
1488(to)S
(child)210 1614 A
1866(to)S
(wake)168 1992 A
2202(it)S
(up.)126 2328 A
2496(*/)S
2610 V
(16904)210 648 A
(reply(child_nr,)630 1110 A
1782(0,)S
1908(0,)S
(NIL_PTR);)378 2034 A
2700 V
(16905)210 648 A
(return(next_pid);)714 1110 A
2412(/*)S
(child's)294 2538 A
(pid)126 2874 A
3042(*/)S
2790 V
(16906)210 648 A
1026(})S
3060 V
(16909)210 648 A
(/*===========================================================================*)3276 1026 A
3150 V
(16910)210 648 A
1068(*)S
(do_mm_exit)420 2370 A
4260(*)S
3240 V
(16911)210 648 A
(*===========================================================================*/)3276 1068 A
3330 V
(16912)210 648 A
(PUBLIC)252 1026 A
(int)126 1320 A
(do_mm_exit())504 1488 A
3420 V
(16913)210 648 A
1026({)S
3510 V
(16914)210 648 A
1026(/*)S
(Perform)294 1152 A
(the)126 1488 A
(exit(status))504 1656 A
(system)252 2202 A
(call.)210 2496 A
(The)126 2748 A
(real)168 2916 A
(work)168 3126 A
3336(is)S
(done)168 3462 A
3672(by)S
(mm_exit(),)420 3798 A
3600 V
(16915)210 648 A
1068(*)S
(which)210 1152 A
1404(is)S
(also)168 1530 A
(called)252 1740 A
(when)168 2034 A
2244(a)S
(process)294 2328 A
2664(is)S
(killed)252 2790 A
3084(by)S
3210(a)S
(signal.)294 3294 A
3690 V
(16916)210 648 A
1068(*/)S
3780 V
(16917)210 648 A
3870 V
(16918)210 648 A
(mm_exit(mp,)462 1110 A
(status);)336 1614 A
3960 V
(16919)210 648 A
(dont_reply)420 1110 A
1572(=)S
(TRUE;)210 1656 A
2370(/*)S
(don't)210 2496 A
(reply)210 2748 A
3000(to)S
(newly)210 3126 A
(terminated)420 3378 A
(process)294 3840 A
4176(*/)S
4050 V
(16920)210 648 A
(return(OK);)462 1110 A
2370(/*)S
(pro)126 2496 A
(forma)210 2664 A
(return)252 2916 A
(code)168 3210 A
3420(*/)S
4140 V
(16921)210 648 A
1026(})S
4410 V
(16924)210 648 A
(/*===========================================================================*)3276 1026 A
4500 V
(16925)210 648 A
1068(*)S
(mm_exit)294 2370 A
4260(*)S
4590 V
(16926)210 648 A
(*===========================================================================*/)3276 1068 A
4680 V
(16927)210 648 A
(PUBLIC)252 1026 A
(void)168 1320 A
(mm_exit(rmp,)504 1530 A
(exit_status))504 2076 A
4770 V
(16928)210 648 A
(register)336 1026 A
(struct)252 1404 A
(mproc)210 1698 A
(*rmp;)210 1950 A
2370(/*)S
(pointer)294 2496 A
2832(to)S
(the)126 2958 A
(process)294 3126 A
3462(to)S
3588(be)S
(terminated)420 3714 A
4176(*/)S
4860 V
(16929)210 648 A
(int)126 1026 A
(exit_status;)504 1194 A
2370(/*)S
(the)126 2496 A
(process')336 2664 A
(exit)168 3042 A
(status)252 3252 A
((for)168 3546 A
(parent))294 3756 A
4092(*/)S
4950 V
(16930)210 648 A
1026({)S
5040 V
(16931)210 648 A
1026(/*)S
1152(A)S
(process)294 1236 A
1572(is)S
(done.)210 1698 A
(Release)294 1992 A
(most)168 2328 A
2538(of)S
(the)126 2664 A
(process')336 2832 A
(possessions.)504 3210 A
3798(If)S
(its)126 3924 A
5130 V
(16932)210 648 A
1068(*)S
(parent)252 1152 A
1446(is)S
(waiting,)336 1572 A
(release)294 1950 A
(the)126 2286 A
(rest,)210 2454 A
(else)168 2706 A
(hang.)210 2916 A
5220 V
(16933)210 648 A
1068(*/)S
5310 V
(16934)210 648 A
5400 V
(16935)210 648 A
(register)336 1110 A
(int)126 1488 A
(proc_nr;)336 1656 A
5490 V
(16936)210 648 A
(int)126 1110 A
(parent_waiting,)630 1278 A
(right_child;)504 1950 A
5580 V
(16937)210 648 A
(pid_t)210 1110 A
(pidarg,)294 1362 A
(procgrp;)336 1698 A
5670 V
(16938)210 648 A
(phys_clicks)462 1110 A
(base,)210 1614 A
(size,)210 1866 A
2118(s;)S
2706(/*)S
(base)168 2832 A
(and)126 3042 A
(size)168 3210 A
(used)168 3420 A
3630(on)S
(68000)210 3756 A
(only)168 4008 A
4218(*/)S
5760 V
(16939)210 648 A
5850 V
(16940)210 648 A
(proc_nr)294 1110 A
1446(=)S
((int))210 1530 A
((rmp)168 1782 A
1992(-)S
(mproc);)294 2076 A
2706(/*)S
(get)126 2832 A
(process)294 3000 A
(slot)168 3336 A
(number)252 3546 A
3840(*/)S
5940 V
(16941)210 648 A
6030 V
(16942)210 648 A
1110(/*)S
(Remember)336 1236 A
1614(a)S
(session)294 1698 A
(leader's)336 2034 A
(process)294 2412 A
(group.)252 2748 A
3042(*/)S
6120 V
(16943)210 648 A
(procgrp)294 1110 A
1446(=)S
((rmp->mp_pid)504 1530 A
2076(==)S
(mp->mp_procgrp))630 2202 A
2874(?)S
(mp->mp_procgrp)588 2958 A
3588(:)S
3672(0;)S
6210 V
(16944)210 648 A
8418 V
EP
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630 V
12 B
(234)180 648 A
11 R
2025(File:)S
2258(src/mm/forkexit.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
(16945)210 648 A
1110(/*)S
1236(If)S
(the)126 1362 A
(exited)252 1530 A
(process)294 1824 A
(has)126 2160 A
2328(a)S
(timer)210 2412 A
(pending,)336 2664 A
(kill)168 3042 A
(it.)126 3252 A
3420(*/)S
990 V
(16946)210 648 A
1110(if)S
((rmp->mp_flags)588 1236 A
1866(&)S
(ALARM_ON))378 1950 A
(set_alarm(proc_nr,)756 2370 A
((unsigned))420 3168 A
(0);)126 3630 A
1080 V
(16947)210 648 A
1170 V
(16948)210 648 A
1110(/*)S
(Tell)168 1236 A
(the)126 1446 A
(kernel)252 1614 A
(and)126 1908 A
2076(FS)S
(that)168 2202 A
(the)126 2412 A
(process)294 2580 A
2916(is)S
3042(no)S
(longer)252 3168 A
(runnable.)378 3462 A
3882(*/)S
1260 V
(16949)210 648 A
(tell_fs(EXIT,)546 1110 A
(proc_nr,)336 1698 A
2076(0,)S
(0);)126 2202 A
2412(/*)S
(file)168 2538 A
(system)252 2748 A
(can)126 3042 A
(free)168 3210 A
(the)126 3420 A
(proc)168 3588 A
(slot)168 3798 A
4008(*/)S
1350 V
(16950)210 648 A
(sys_xit(rmp->mp_parent,)966 1110 A
(proc_nr,)336 2118 A
(&base,)252 2496 A
(&size);)294 2790 A
1440 V
(16951)210 648 A
1530 V
(16952)210 648 A
1110(/*)S
(Release)294 1236 A
(the)126 1572 A
(memory)252 1740 A
(occupied)336 2034 A
2412(by)S
(the)126 2538 A
(child.)252 2706 A
3000(*/)S
1620 V
(16953)210 648 A
1110(if)S
((find_share(rmp,)672 1236 A
(rmp->mp_ino,)504 1950 A
(rmp->mp_dev,)504 2496 A
(rmp->mp_ctime))588 3042 A
3672(==)S
(NULL))210 3798 A
4050({)S
1710 V
(16954)210 648 A
1362(/*)S
1488(No)S
(other)210 1614 A
(process)294 1866 A
(shares)252 2202 A
(the)126 2496 A
(text)168 2664 A
(segment,)336 2874 A
3252(so)S
(free)168 3378 A
(it.)126 3588 A
3756(*/)S
1800 V
(16955)210 648 A
(free_mem(rmp->mp_seg[T].mem_phys,)1386 1362 A
(rmp->mp_seg[T].mem_len);)1008 2790 A
1890 V
(16956)210 648 A
1110(})S
1980 V
(16957)210 648 A
1110(/*)S
(Free)168 1236 A
(the)126 1446 A
(data)168 1614 A
(and)126 1824 A
(stack)210 1992 A
(segments.)378 2244 A
2664(*/)S
2070 V
(16958)210 648 A
(free_mem(rmp->mp_seg[D].mem_phys,)1386 1110 A
2160 V
(16959)210 648 A
(rmp->mp_seg[S].mem_vir)924 1278 A
2244(+)S
(rmp->mp_seg[S].mem_len)924 2328 A
3294(-)S
(rmp->mp_seg[D].mem_vir);)1008 3378 A
2250 V
(16960)210 648 A
2340 V
(16961)210 648 A
1110(/*)S
(The)126 1236 A
(process)294 1404 A
(slot)168 1740 A
(can)126 1950 A
(only)168 2118 A
2328(be)S
(freed)210 2454 A
2706(if)S
(the)126 2832 A
(parent)252 3000 A
(has)126 3294 A
(done)168 3462 A
3672(a)S
(WAIT.)210 3756 A
4008(*/)S
2430 V
(16962)210 648 A
(rmp->mp_exitstatus)756 1110 A
1908(=)S
((char))252 1992 A
(exit_status;)504 2286 A
2520 V
(16963)210 648 A
(pidarg)252 1110 A
1404(=)S
(mproc[rmp->mp_parent].mp_wpid;)1260 1488 A
3042(/*)S
(who's)210 3168 A
(being)210 3420 A
(waited)252 3672 A
(for?)168 3966 A
4176(*/)S
2610 V
(16964)210 648 A
(parent_waiting)588 1110 A
1740(=)S
(mproc[rmp->mp_parent].mp_flags)1260 1824 A
3126(&)S
(WAITING;)336 3210 A
2700 V
(16965)210 648 A
1110(if)S
((pidarg)294 1236 A
1572(==)S
1698(-1)S
1824(||)S
(pidarg)252 1950 A
2244(==)S
(rmp->mp_pid)462 2370 A
2874(||)S
(-pidarg)294 3000 A
3336(==)S
(rmp->mp_procgrp))672 3462 A
2790 V
(16966)210 648 A
(right_child)462 1362 A
1866(=)S
(TRUE;)210 1950 A
2706(/*)S
(child)210 2832 A
(meets)210 3084 A
(one)126 3336 A
3504(of)S
(the)126 3630 A
3798(3)S
(tests)210 3882 A
4134(*/)S
2880 V
(16967)210 648 A
(else)168 1110 A
2970 V
(16968)210 648 A
(right_child)462 1362 A
1866(=)S
(FALSE;)252 1950 A
2706(/*)S
(child)210 2832 A
(fails)210 3084 A
(all)126 3336 A
3504(3)S
(tests)210 3588 A
3840(*/)S
3060 V
(16969)210 648 A
1110(if)S
((parent_waiting)630 1236 A
1908(&&)S
(right_child))504 2034 A
3150 V
(16970)210 648 A
(cleanup(rmp);)546 1362 A
2706(/*)S
(tell)168 2832 A
(parent)252 3042 A
(and)126 3336 A
(release)294 3504 A
(child)210 3840 A
(slot)168 4092 A
4302(*/)S
3240 V
(16971)210 648 A
(else)168 1110 A
3330 V
(16972)210 648 A
(rmp->mp_flags)546 1362 A
1950(|=)S
(HANGING;)336 2076 A
2706(/*)S
(parent)252 2832 A
(not)126 3126 A
(waiting,)336 3294 A
(suspend)294 3672 A
(child)210 4008 A
4260(*/)S
3420 V
(16973)210 648 A
3510 V
(16974)210 648 A
1110(/*)S
1236(If)S
(the)126 1362 A
(process)294 1530 A
(has)126 1866 A
(children,)378 2034 A
(disinherit)420 2454 A
(them.)210 2916 A
(INIT)168 3210 A
3420(is)S
(the)126 3546 A
(new)126 3714 A
(parent.)294 3882 A
4218(*/)S
3600 V
(16975)210 648 A
(for)126 1110 A
((rmp)168 1278 A
1488(=)S
(&mproc[0];)420 1572 A
(rmp)126 2034 A
2202(<)S
(&mproc[NR_PROCS];)714 2286 A
(rmp++))252 3042 A
3336({)S
3690 V
(16976)210 648 A
1362(if)S
((rmp->mp_flags)588 1488 A
2118(&)S
(IN_USE)252 2202 A
2496(&&)S
(rmp->mp_parent)588 2622 A
3252(==)S
(proc_nr))336 3378 A
3756({)S
3780 V
(16977)210 648 A
1698(/*)S
('rmp')210 1824 A
(now)126 2076 A
(points)252 2244 A
2538(to)S
2664(a)S
(child)210 2748 A
3000(to)S
3126(be)S
(disinherited.)546 3252 A
3840(*/)S
3870 V
(16978)210 648 A
(rmp->mp_parent)588 1698 A
2328(=)S
(INIT_PROC_NR;)546 2412 A
3960 V
(16979)210 648 A
(parent_waiting)588 1698 A
2328(=)S
(mproc[INIT_PROC_NR].mp_flags)1176 2412 A
3630(&)S
(WAITING;)336 3714 A
4050 V
(16980)210 648 A
1698(if)S
((parent_waiting)630 1824 A
2496(&&)S
((rmp->mp_flags)588 2622 A
3252(&)S
(HANGING)))378 3336 A
(cleanup(rmp);)546 3756 A
4140 V
(16981)210 648 A
1362(})S
4230 V
(16982)210 648 A
1110(})S
4320 V
(16983)210 648 A
4410 V
(16984)210 648 A
1110(/*)S
(Send)168 1236 A
1446(a)S
(hangup)252 1530 A
1824(to)S
(the)126 1950 A
(process')336 2118 A
(process)294 2496 A
(group)210 2832 A
3084(if)S
3210(it)S
(was)126 3336 A
3504(a)S
(session)294 3588 A
(leader.)294 3924 A
4260(*/)S
4500 V
(16985)210 648 A
1110(if)S
((procgrp)336 1236 A
1614(!=)S
1740(0))S
(check_sig(-procgrp,)798 1866 A
(SIGHUP);)336 2706 A
4590 V
(16986)210 648 A
1026(})S
4860 V
(16989)210 648 A
(/*===========================================================================*)3276 1026 A
4950 V
(16990)210 648 A
1068(*)S
(do_waitpid)420 2370 A
4260(*)S
5040 V
(16991)210 648 A
(*===========================================================================*/)3276 1068 A
5130 V
(16992)210 648 A
(PUBLIC)252 1026 A
(int)126 1320 A
(do_waitpid())504 1488 A
5220 V
(16993)210 648 A
1026({)S
5310 V
(16994)210 648 A
1026(/*)S
1152(A)S
(process)294 1236 A
(wants)210 1572 A
1824(to)S
(wait)168 1950 A
(for)126 2160 A
2328(a)S
(child)210 2412 A
2664(to)S
(terminate.)420 2790 A
3252(If)S
(one)126 3378 A
3546(is)S
(already)294 3672 A
(waiting,)336 4008 A
5400 V
(16995)210 648 A
1068(*)S
1152(go)S
(clean)210 1278 A
1530(it)S
1656(up)S
(and)126 1782 A
(let)126 1950 A
(this)168 2118 A
(WAIT)168 2328 A
(call)168 2538 A
(terminate.)420 2748 A
(Otherwise,)420 3252 A
(really)252 3714 A
(wait.)210 4008 A
5490 V
(16996)210 648 A
1068(*)S
(Both)168 1152 A
(WAIT)168 1362 A
(and)126 1572 A
(WAITPID)294 1740 A
(are)126 2076 A
(handled)294 2244 A
2580(by)S
(this)168 2706 A
(code.)210 2916 A
5580 V
(16997)210 648 A
1068(*/)S
5670 V
(16998)210 648 A
5760 V
(16999)210 648 A
(register)336 1110 A
(struct)252 1488 A
(mproc)210 1782 A
(*rp;)168 2034 A
5850 V
(17000)210 648 A
(int)126 1110 A
(pidarg,)294 1278 A
(options,)336 1614 A
(children,)378 1992 A
(res2;)210 2412 A
5940 V
(17001)210 648 A
6030 V
(17002)210 648 A
1110(/*)S
1236(A)S
(process)294 1320 A
(calling)294 1656 A
(WAIT)168 1992 A
(never)210 2202 A
(gets)168 2454 A
2664(a)S
(reply)210 2748 A
3000(in)S
(the)126 3126 A
(usual)210 3294 A
(way)126 3546 A
(via)126 3714 A
(the)126 3882 A
6120 V
(17003)210 648 A
1152(*)S
(reply())294 1236 A
1572(in)S
(the)126 1698 A
(main)168 1866 A
(loop)168 2076 A
((unless)294 2286 A
(WNOHANG)294 2622 A
2958(is)S
(set)126 3084 A
3252(or)S
3378(no)S
(qualifying)420 3504 A
(child)210 3966 A
6210 V
(17004)210 648 A
1152(*)S
(exists).)336 1236 A
1656(If)S
1782(a)S
(child)210 1866 A
(has)126 2118 A
(already)294 2286 A
(exited,)294 2622 A
(the)126 2958 A
(routine)294 3126 A
(cleanup())378 3462 A
(sends)210 3882 A
8418 V
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630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2025(File:)S
2258(src/mm/forkexit.c)S
12 B
(235)180 4248 A
900 V
7 LST
(17005)210 648 A
1152(*)S
(the)126 1236 A
(reply)210 1404 A
1656(to)S
(awaken)252 1782 A
(the)126 2076 A
(caller.)294 2244 A
990 V
(17006)210 648 A
1152(*/)S
1080 V
(17007)210 648 A
1170 V
(17008)210 648 A
1110(/*)S
(Set)126 1236 A
(internal)336 1404 A
(variables,)420 1782 A
(depending)378 2244 A
2664(on)S
(whether)294 2790 A
(this)168 3126 A
3336(is)S
(WAIT)168 3462 A
3672(or)S
(WAITPID.)336 3798 A
4176(*/)S
1260 V
(17009)210 648 A
(pidarg)252 1110 A
1446(=)S
((mm_call)336 1530 A
1908(==)S
(WAIT)168 2034 A
2244(?)S
2328(-1)S
2454(:)S
(pid);)210 2538 A
3042(/*)S
(first)210 3168 A
(param)210 3420 A
3672(of)S
(waitpid)294 3798 A
4134(*/)S
1350 V
(17010)210 648 A
(options)294 1110 A
1446(=)S
((mm_call)336 1530 A
1908(==)S
(WAIT)168 2034 A
2244(?)S
2370(0)S
2454(:)S
(sig_nr);)336 2538 A
3042(/*)S
(third)210 3168 A
(param)210 3420 A
3672(of)S
(waitpid)294 3798 A
4134(*/)S
1440 V
(17011)210 648 A
1110(if)S
((pidarg)294 1236 A
1572(==)S
1698(0))S
(pidarg)252 1824 A
2118(=)S
(-mp->mp_procgrp;)672 2202 A
3042(/*)S
(pidarg)252 3168 A
3462(<)S
3546(0)S
(==>)126 3630 A
(proc)168 3798 A
(grp)126 4008 A
4176(*/)S
1530 V
(17012)210 648 A
1620 V
(17013)210 648 A
1110(/*)S
1236(Is)S
(there)210 1362 A
1614(a)S
(child)210 1698 A
(waiting)294 1950 A
2286(to)S
2412(be)S
(collected?)420 2538 A
3000(At)S
(this)168 3126 A
(point,)252 3336 A
(pidarg)252 3630 A
3924(!=)S
4050(0:)S
1710 V
(17014)210 648 A
1152(*)S
(pidarg)252 1362 A
1698(>)S
1824(0)S
(means)210 1908 A
(pidarg)252 2160 A
2454(is)S
(pid)126 2580 A
2748(of)S
2874(a)S
(specific)336 2958 A
(process)294 3336 A
3672(to)S
(wait)168 3798 A
(for)126 4008 A
1800 V
(17015)210 648 A
1152(*)S
(pidarg)252 1362 A
1656(==)S
1782(-1)S
(means)210 1908 A
(wait)168 2160 A
(for)126 2370 A
(any)126 2538 A
(child)210 2706 A
1890 V
(17016)210 648 A
1152(*)S
(pidarg)252 1362 A
1698(<)S
1782(-1)S
(means)210 1908 A
(wait)168 2160 A
(for)126 2370 A
(any)126 2538 A
(child)210 2706 A
(whose)210 2958 A
(process)294 3210 A
(group)210 3546 A
3798(=)S
(-pidarg)294 3882 A
1980 V
(17017)210 648 A
1152(*/)S
2070 V
(17018)210 648 A
(children)336 1110 A
1488(=)S
1572(0;)S
2160 V
(17019)210 648 A
(for)126 1110 A
((rp)126 1278 A
1446(=)S
(&mproc[0];)420 1530 A
1992(rp)S
2118(<)S
(&mproc[NR_PROCS];)714 2202 A
(rp++))210 2958 A
3210({)S
2250 V
(17020)210 648 A
1362(if)S
1488(()S
((rp->mp_flags)546 1572 A
2160(&)S
(IN_USE))294 2244 A
2580(&&)S
(rp->mp_parent)546 2706 A
3294(==)S
(who))168 3420 A
3630({)S
2340 V
(17021)210 648 A
1698(/*)S
(The)126 1824 A
(value)210 1992 A
2244(of)S
(pidarg)252 2370 A
(determines)420 2664 A
(which)210 3126 A
(children)336 3378 A
(qualify.)336 3756 A
4134(*/)S
2430 V
(17022)210 648 A
1698(if)S
((pidarg)294 1824 A
2202(>)S
2286(0)S
2370(&&)S
(pidarg)252 2496 A
2790(!=)S
(rp->mp_pid))462 2916 A
(continue;)378 3420 A
2520 V
(17023)210 648 A
1698(if)S
((pidarg)294 1824 A
2160(<)S
2244(-1)S
2370(&&)S
(-pidarg)294 2496 A
2832(!=)S
(rp->mp_procgrp))630 2958 A
(continue;)378 3630 A
2610 V
(17024)210 648 A
2700 V
(17025)210 648 A
(children++;)462 1698 A
2706(/*)S
(this)168 2832 A
(child)210 3042 A
3294(is)S
(acceptable)420 3420 A
3882(*/)S
2790 V
(17026)210 648 A
1698(if)S
((rp->mp_flags)546 1824 A
2412(&)S
(HANGING))336 2496 A
2874({)S
2880 V
(17027)210 648 A
2034(/*)S
(This)168 2160 A
(child)210 2370 A
(meets)210 2622 A
(the)126 2874 A
(pid)126 3042 A
(test)168 3210 A
(and)126 3420 A
(has)126 3588 A
(exited.)294 3756 A
4092(*/)S
2970 V
(17028)210 648 A
(cleanup(rp);)504 2034 A
2706(/*)S
(this)168 2832 A
(child)210 3042 A
(has)126 3294 A
(already)294 3462 A
(exited)252 3798 A
4092(*/)S
3060 V
(17029)210 648 A
(dont_reply)420 2034 A
2496(=)S
(TRUE;)210 2580 A
3150 V
(17030)210 648 A
(return(OK);)462 2034 A
3240 V
(17031)210 648 A
1698(})S
3330 V
(17032)210 648 A
1698(if)S
(((rp->mp_flags)588 1824 A
2454(&)S
(STOPPED))336 2538 A
2916(&&)S
(rp->mp_sigstatus))714 3042 A
3798({)S
3420 V
(17033)210 648 A
2034(/*)S
(This)168 2160 A
(child)210 2370 A
(meets)210 2622 A
(the)126 2874 A
(pid)126 3042 A
(test)168 3210 A
(and)126 3420 A
3588(is)S
(being)210 3714 A
(traced.*/)378 3966 A
3510 V
(17034)210 648 A
(res2)168 2034 A
2244(=)S
(0177)168 2370 A
2580(|)S
((rp->mp_sigstatus)714 2664 A
3420(<<)S
(8);)126 3546 A
3600 V
(17035)210 648 A
(reply(who,)420 2034 A
(rp->mp_pid,)462 2496 A
(res2,)210 3000 A
(NIL_PTR);)378 3252 A
3690 V
(17036)210 648 A
(dont_reply)420 2034 A
2496(=)S
(TRUE;)210 2580 A
3780 V
(17037)210 648 A
(rp->mp_sigstatus)672 2034 A
2748(=)S
2832(0;)S
3870 V
(17038)210 648 A
(return(OK);)462 2034 A
3960 V
(17039)210 648 A
1698(})S
4050 V
(17040)210 648 A
1362(})S
4140 V
(17041)210 648 A
1110(})S
4230 V
(17042)210 648 A
4320 V
(17043)210 648 A
1110(/*)S
1236(No)S
(qualifying)420 1362 A
(child)210 1824 A
(has)126 2076 A
(exited.)294 2244 A
(Wait)168 2622 A
(for)126 2832 A
(one,)168 3000 A
(unless)252 3210 A
(none)168 3504 A
(exists.)294 3714 A
4050(*/)S
4410 V
(17044)210 648 A
1110(if)S
((children)378 1236 A
1656(>)S
1740(0))S
1866({)S
4500 V
(17045)210 648 A
1362(/*)S
1488(At)S
(least)210 1614 A
1866(1)S
(child)210 1950 A
(meets)210 2202 A
(the)126 2454 A
(pid)126 2622 A
(test)168 2790 A
(exists,)294 3000 A
(but)126 3336 A
(has)126 3504 A
(not)126 3672 A
(exited.)294 3840 A
4176(*/)S
4590 V
(17046)210 648 A
1362(if)S
((options)336 1488 A
1866(&)S
(WNOHANG))336 1950 A
(return(0);)420 2328 A
2916(/*)S
(parent)252 3042 A
(does)168 3336 A
(not)126 3546 A
(want)168 3714 A
3924(to)S
(wait)168 4050 A
4260(*/)S
4680 V
(17047)210 648 A
(mp->mp_flags)504 1362 A
1908(|=)S
(WAITING;)336 2034 A
2916(/*)S
(parent)252 3042 A
(wants)210 3336 A
3588(to)S
(wait)168 3714 A
3924(*/)S
4770 V
(17048)210 648 A
(mp->mp_wpid)462 1362 A
1866(=)S
((pid_t))294 1950 A
(pidarg;)294 2286 A
2916(/*)S
(save)168 3042 A
(pid)126 3252 A
(for)126 3420 A
(later)210 3588 A
3840(*/)S
4860 V
(17049)210 648 A
(dont_reply)420 1362 A
1824(=)S
(TRUE;)210 1908 A
2916(/*)S
3042(do)S
(not)126 3168 A
(reply)210 3336 A
(now)126 3588 A
(though)252 3756 A
4050(*/)S
4950 V
(17050)210 648 A
(return(OK);)462 1362 A
2916(/*)S
(yes)126 3042 A
3210(-)S
(wait)168 3294 A
(for)126 3504 A
(one)126 3672 A
3840(to)S
(exit)168 3966 A
4176(*/)S
5040 V
(17051)210 648 A
1110(})S
(else)168 1194 A
1404({)S
5130 V
(17052)210 648 A
1362(/*)S
1488(No)S
(child)210 1614 A
(even)168 1866 A
(meets)210 2076 A
(the)126 2328 A
(pid)126 2496 A
(test.)210 2664 A
(Return)252 2958 A
(error)210 3252 A
(immediately.)504 3504 A
4050(*/)S
5220 V
(17053)210 648 A
(return(ECHILD);)630 1362 A
2916(/*)S
3042(no)S
3168(-)S
(parent)252 3252 A
(has)126 3546 A
3714(no)S
(children)336 3840 A
4218(*/)S
5310 V
(17054)210 648 A
1110(})S
5400 V
(17055)210 648 A
1026(})S
5670 V
(17058)210 648 A
(/*===========================================================================*)3276 1026 A
5760 V
(17059)210 648 A
1068(*)S
(cleanup)294 2370 A
4260(*)S
5850 V
(17060)210 648 A
(*===========================================================================*/)3276 1068 A
5940 V
(17061)210 648 A
(PRIVATE)294 1026 A
(void)168 1362 A
(cleanup(child))588 1572 A
6030 V
(17062)210 648 A
(register)336 1026 A
(struct)252 1404 A
(mproc)210 1698 A
(*child;)294 1950 A
2370(/*)S
(tells)210 2496 A
(which)210 2748 A
(process)294 3000 A
3336(is)S
(exiting)294 3462 A
3798(*/)S
6120 V
(17063)210 648 A
1026({)S
6210 V
(17064)210 648 A
1026(/*)S
(Finish)252 1152 A
(off)126 1446 A
(the)126 1614 A
(exit)168 1782 A
1992(of)S
2118(a)S
(process.)336 2202 A
(The)126 2622 A
(process)294 2790 A
(has)126 3126 A
(exited)252 3294 A
3588(or)S
(been)168 3714 A
(killed)252 3924 A
8418 V
EP
%%Page: 236 236
BP
/slant 0 def
/height 0 def
630 V
12 B
(236)180 648 A
11 R
2025(File:)S
2258(src/mm/forkexit.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
(17065)210 648 A
1068(*)S
1152(by)S
1278(a)S
(signal,)294 1362 A
(and)126 1698 A
(its)126 1866 A
(parent)252 2034 A
2328(is)S
(waiting.)336 2454 A
990 V
(17066)210 648 A
1068(*/)S
1080 V
(17067)210 648 A
1170 V
(17068)210 648 A
(int)126 1110 A
(exitstatus;)462 1278 A
1260 V
(17069)210 648 A
1350 V
(17070)210 648 A
1110(/*)S
(Wake)168 1236 A
1446(up)S
(the)126 1572 A
(parent.)294 1740 A
2076(*/)S
1440 V
(17071)210 648 A
(exitstatus)420 1110 A
1572(=)S
((child->mp_exitstatus)882 1656 A
2580(<<)S
2706(8))S
2832(|)S
((child->mp_sigstatus)840 2916 A
3798(&)S
(0377);)252 3882 A
1530 V
(17072)210 648 A
(reply(child->mp_parent,)966 1110 A
(child->mp_pid,)588 2118 A
(exitstatus,)462 2748 A
(NIL_PTR);)378 3252 A
1620 V
(17073)210 648 A
(mproc[child->mp_parent].mp_flags)1344 1110 A
2496(&=)S
(304WAITING;)378 2622 A
3042(/*)S
(parent)252 3168 A
3462(no)S
(longer)252 3588 A
(waiting)294 3882 A
4218(*/)S
1710 V
(17074)210 648 A
1800 V
(17075)210 648 A
1110(/*)S
(Release)294 1236 A
(the)126 1572 A
(process)294 1740 A
(table)210 2076 A
(entry.)252 2328 A
2622(*/)S
1890 V
(17076)210 648 A
(child->mp_flags)630 1110 A
1782(=)S
1866(0;)S
1980 V
(17077)210 648 A
(procs_in_use--;)630 1110 A
2070 V
(17078)210 648 A
1026(})S
2340 V
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
2430 V
(src/mm/exec.c)546 2034 A
2520 V
(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++)3528 648 A
2700 V
(17100)210 648 A
1026(/*)S
(This)168 1152 A
(file)168 1362 A
(handles)294 1572 A
(the)126 1908 A
(EXEC)168 2076 A
(system)252 2286 A
(call.)210 2580 A
2874(It)S
(performs)336 3000 A
(the)126 3378 A
(work)168 3546 A
3756(as)S
(follows:)336 3882 A
2790 V
(17101)210 648 A
1068(*)S
1278(-)S
(see)126 1362 A
1530(if)S
(the)126 1656 A
(permissions)462 1824 A
(allow)210 2328 A
(the)126 2580 A
(file)168 2748 A
2958(to)S
3084(be)S
(executed)336 3210 A
2880 V
(17102)210 648 A
1068(*)S
1278(-)S
(read)168 1362 A
(the)126 1572 A
(header)252 1740 A
(and)126 2034 A
(extract)294 2202 A
(the)126 2538 A
(sizes)210 2706 A
2970 V
(17103)210 648 A
1068(*)S
1278(-)S
(fetch)210 1362 A
(the)126 1614 A
(initial)294 1782 A
(args)168 2118 A
(and)126 2328 A
(environment)462 2496 A
(from)168 3000 A
(the)126 3210 A
(user)168 3378 A
(space)210 3588 A
3060 V
(17104)210 648 A
1068(*)S
1278(-)S
(allocate)336 1362 A
(the)126 1740 A
(memory)252 1908 A
(for)126 2202 A
(the)126 2370 A
(new)126 2538 A
(process)294 2706 A
3150 V
(17105)210 648 A
1068(*)S
1278(-)S
(copy)168 1362 A
(the)126 1572 A
(initial)294 1740 A
(stack)210 2076 A
(from)168 2328 A
2538(MM)S
2664(to)S
(the)126 2790 A
(process)294 2958 A
3240 V
(17106)210 648 A
1068(*)S
1278(-)S
(read)168 1362 A
1572(in)S
(the)126 1698 A
(text)168 1866 A
(and)126 2076 A
(data)168 2244 A
(segments)336 2454 A
(and)126 2832 A
(copy)168 3000 A
3210(to)S
(the)126 3336 A
(process)294 3504 A
3330 V
(17107)210 648 A
1068(*)S
1278(-)S
(take)168 1362 A
(care)168 1572 A
1782(of)S
(setuid)252 1908 A
(and)126 2202 A
(setgid)252 2370 A
(bits)168 2664 A
3420 V
(17108)210 648 A
1068(*)S
1278(-)S
(fix)126 1362 A
1530(up)S
('mproc')294 1656 A
(table)210 1992 A
3510 V
(17109)210 648 A
1068(*)S
1278(-)S
(tell)168 1362 A
(kernel)252 1572 A
(about)210 1866 A
(EXEC)168 2118 A
3600 V
(17110)210 648 A
1068(*)S
1278(-)S
(save)168 1362 A
(offset)252 1572 A
1866(to)S
(initial)294 1992 A
(argc)168 2328 A
((for)168 2538 A
(ps))126 2748 A
3690 V
(17111)210 648 A
1068(*)S
3780 V
(17112)210 648 A
1068(*)S
(The)126 1152 A
(entry)210 1320 A
(points)252 1572 A
(into)168 1866 A
(this)168 2076 A
(file)168 2286 A
(are:)168 2496 A
3870 V
(17113)210 648 A
1068(*)S
(do_exec:)336 1236 A
(perform)294 1740 A
(the)126 2076 A
(EXEC)168 2244 A
(system)252 2454 A
(call)168 2748 A
3960 V
(17114)210 648 A
1068(*)S
(find_share:)462 1236 A
(find)168 1740 A
1950(a)S
(process)294 2034 A
(whose)210 2370 A
(text)168 2622 A
(segment)294 2832 A
(can)126 3168 A
3336(be)S
(shared)252 3462 A
4050 V
(17115)210 648 A
1068(*/)S
4140 V
(17116)210 648 A
4230 V
(17117)210 648 A
(#include)336 1026 A
("mm.h")252 1404 A
4320 V
(17118)210 648 A
(#include)336 1026 A
(<sys/stat.h>)504 1404 A
4410 V
(17119)210 648 A
(#include)336 1026 A
(<minix/callnr.h>)672 1404 A
4500 V
(17120)210 648 A
(#include)336 1026 A
(<a.out.h>)378 1404 A
4590 V
(17121)210 648 A
(#include)336 1026 A
(<signal.h>)420 1404 A
4680 V
(17122)210 648 A
(#include)336 1026 A
(<string.h>)420 1404 A
4770 V
(17123)210 648 A
(#include)336 1026 A
("mproc.h")378 1404 A
4860 V
(17124)210 648 A
(#include)336 1026 A
("param.h")378 1404 A
4950 V
(17125)210 648 A
5040 V
(17126)210 648 A
(FORWARD)294 1026 A
(_PROTOTYPE()462 1362 A
(void)168 1866 A
(load_seg,)378 2076 A
((int)168 2496 A
(fd,)126 2706 A
(int)126 2874 A
(seg,)168 3042 A
(vir_bytes)378 3252 A
(seg_bytes))420 3672 A
4134();)S
5130 V
(17127)210 648 A
(FORWARD)294 1026 A
(_PROTOTYPE()462 1362 A
(int)126 1866 A
(new_mem,)336 2034 A
((struct)294 2412 A
(mproc)210 2748 A
(*sh_mp,)294 3000 A
(vir_bytes)378 3336 A
(text_bytes,)462 3756 A
5220 V
(17128)210 648 A
(vir_bytes)378 1698 A
(data_bytes,)462 2118 A
(vir_bytes)378 2622 A
(bss_bytes,)420 3042 A
5310 V
(17129)210 648 A
(vir_bytes)378 1698 A
(stk_bytes,)420 2118 A
(phys_bytes)420 2580 A
(tot_bytes))420 3042 A
4050();)S
5400 V
(17130)210 648 A
(FORWARD)294 1026 A
(_PROTOTYPE()462 1362 A
(void)168 1866 A
(patch_ptr,)420 2076 A
((char)210 2538 A
(stack)210 2790 A
([ARG_MAX)336 3042 A
3420(],)S
(vir_bytes)378 3546 A
(base))210 3966 A
4218();)S
5490 V
(17131)210 648 A
(FORWARD)294 1026 A
(_PROTOTYPE()462 1362 A
(int)126 1866 A
(read_header,)504 2034 A
((int)168 2580 A
(fd,)126 2790 A
(int)126 2958 A
(*ft,)168 3126 A
(vir_bytes)378 3336 A
(*text_bytes,)504 3756 A
5580 V
(17132)210 648 A
(vir_bytes)378 1698 A
(*data_bytes,)504 2118 A
(vir_bytes)378 2664 A
(*bss_bytes,)462 3084 A
5670 V
(17133)210 648 A
(phys_bytes)420 1698 A
(*tot_bytes,)462 2160 A
(long)168 2664 A
(*sym_bytes,)462 2874 A
(vir_clicks)420 3378 A
(sc,)126 3840 A
5760 V
(17134)210 648 A
(vir_bytes)378 1698 A
(*pc))168 2118 A
4050();)S
5850 V
(17135)210 648 A
5940 V
(17136)210 648 A
6030 V
(17137)210 648 A
(/*===========================================================================*)3276 1026 A
6120 V
(17138)210 648 A
1068(*)S
(do_exec)294 2370 A
4260(*)S
6210 V
(17139)210 648 A
(*===========================================================================*/)3276 1068 A
8418 V
EP
%%Page: 237 237
BP
/slant 0 def
/height 0 def
630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2098(File:)S
2331(src/mm/exec.c)S
12 B
(237)180 4248 A
900 V
7 LST
(17140)210 648 A
(PUBLIC)252 1026 A
(int)126 1320 A
(do_exec())378 1488 A
990 V
(17141)210 648 A
1026({)S
1080 V
(17142)210 648 A
1026(/*)S
(Perform)294 1152 A
(the)126 1488 A
(execve(name,)504 1656 A
(argv,)210 2202 A
(envp))210 2454 A
(call.)210 2706 A
(The)126 3000 A
(user)168 3168 A
(library)294 3378 A
(builds)252 3714 A
4008(a)S
1170 V
(17143)210 648 A
1068(*)S
(complete)336 1152 A
(stack)210 1530 A
(image,)252 1782 A
(including)378 2076 A
(pointers,)378 2496 A
(args,)210 2916 A
(environ,)336 3168 A
(etc.)168 3546 A
(The)126 3798 A
(stack)210 3966 A
1260 V
(17144)210 648 A
1068(*)S
1152(is)S
(copied)252 1278 A
1572(to)S
1698(a)S
(buffer)252 1782 A
(inside)252 2076 A
(MM,)126 2370 A
(and)126 2538 A
(then)168 2706 A
2916(to)S
(the)126 3042 A
(new)126 3210 A
(core)168 3378 A
(image.)252 3588 A
1350 V
(17145)210 648 A
1068(*/)S
1440 V
(17146)210 648 A
1530 V
(17147)210 648 A
(register)336 1110 A
(struct)252 1488 A
(mproc)210 1782 A
(*rmp;)210 2034 A
1620 V
(17148)210 648 A
(struct)252 1110 A
(mproc)210 1404 A
(*sh_mp;)294 1656 A
1710 V
(17149)210 648 A
(int)126 1110 A
1278(m,)S
1404(r,)S
(fd,)126 1530 A
(ft,)126 1698 A
(sn;)126 1866 A
1800 V
(17150)210 648 A
(static)252 1110 A
(char)168 1404 A
(mbuf[ARG_MAX];)588 1614 A
2370(/*)S
(buffer)252 2496 A
(for)126 2790 A
(stack)210 2958 A
(and)126 3210 A
(zeroes)252 3378 A
3672(*/)S
1890 V
(17151)210 648 A
(static)252 1110 A
(char)168 1404 A
(name_buf[PATH_MAX];)798 1614 A
2454(/*)S
(the)126 2580 A
(name)168 2748 A
2958(of)S
(the)126 3084 A
(file)168 3252 A
3462(to)S
(exec)168 3588 A
3798(*/)S
1980 V
(17152)210 648 A
(char)168 1110 A
(*new_sp,)336 1320 A
(*basename;)420 1698 A
2070 V
(17153)210 648 A
(vir_bytes)378 1110 A
(src,)168 1530 A
(dst,)168 1740 A
(text_bytes,)462 1950 A
(data_bytes,)462 2454 A
(bss_bytes,)420 2958 A
(stk_bytes,)420 3420 A
(vsp;)168 3882 A
2160 V
(17154)210 648 A
(phys_bytes)420 1110 A
(tot_bytes;)420 1572 A
2370(/*)S
(total)210 2496 A
(space)210 2748 A
(for)126 3000 A
(program,)336 3168 A
(including)378 3546 A
(gap)126 3966 A
4134(*/)S
2250 V
(17155)210 648 A
(long)168 1110 A
(sym_bytes;)420 1320 A
2340 V
(17156)210 648 A
(vir_clicks)420 1110 A
(sc;)126 1572 A
2430 V
(17157)210 648 A
(struct)252 1110 A
(stat)168 1404 A
(s_buf;)252 1614 A
2520 V
(17158)210 648 A
(vir_bytes)378 1110 A
(pc;)126 1530 A
2610 V
(17159)210 648 A
2700 V
(17160)210 648 A
1110(/*)S
1236(Do)S
(some)168 1362 A
(validity)336 1572 A
(checks.)294 1950 A
2286(*/)S
2790 V
(17161)210 648 A
(rmp)126 1110 A
1278(=)S
(mp;)126 1362 A
2880 V
(17162)210 648 A
(stk_bytes)378 1110 A
1530(=)S
((vir_bytes))462 1614 A
(stack_bytes;)504 2118 A
2970 V
(17163)210 648 A
1110(if)S
((stk_bytes)420 1236 A
1698(>)S
(ARG_MAX))336 1782 A
(return(ENOMEM);)630 2160 A
3042(/*)S
(stack)210 3168 A
(too)126 3420 A
(big)126 3588 A
3756(*/)S
3060 V
(17164)210 648 A
1110(if)S
((exec_len)378 1236 A
1656(<=)S
1782(0)S
1866(||)S
(exec_len)336 1992 A
2370(>)S
(PATH_MAX))378 2454 A
(return(EINVAL);)630 2874 A
3150 V
(17165)210 648 A
3240 V
(17166)210 648 A
1110(/*)S
(Get)126 1236 A
(the)126 1404 A
(exec)168 1572 A
(file)168 1782 A
(name)168 1992 A
(and)126 2202 A
(see)126 2370 A
2538(if)S
(the)126 2664 A
(file)168 2832 A
3042(is)S
(executable.)462 3168 A
3672(*/)S
3330 V
(17167)210 648 A
(src)126 1110 A
1278(=)S
((vir_bytes))462 1362 A
(exec_name;)420 1866 A
3420 V
(17168)210 648 A
(dst)126 1110 A
1278(=)S
((vir_bytes))462 1362 A
(name_buf;)378 1866 A
3510 V
(17169)210 648 A
1110(r)S
1194(=)S
(sys_copy(who,)546 1278 A
1866(D,)S
((phys_bytes))504 1992 A
(src,)168 2538 A
3600 V
(17170)210 648 A
(MM_PROC_NR,)462 1698 A
2202(D,)S
((phys_bytes))504 2328 A
(dst,)168 2874 A
((phys_bytes))504 3084 A
(exec_len);)420 3630 A
3690 V
(17171)210 648 A
1110(if)S
1236((r)S
1362(!=)S
(OK))126 1488 A
(return(r);)420 1656 A
2370(/*)S
(file)168 2496 A
(name)168 2706 A
(not)126 2916 A
3084(in)S
(user)168 3210 A
(data)168 3420 A
(segment)294 3630 A
3966(*/)S
3780 V
(17172)210 648 A
(tell_fs(CHDIR,)588 1110 A
(who,)168 1740 A
(FALSE,)252 1950 A
(0);)126 2244 A
2706(/*)S
(switch)252 2832 A
3126(to)S
(the)126 3252 A
(user's)252 3420 A
3714(FS)S
(environ.)336 3840 A
4218(*/)S
3870 V
(17173)210 648 A
1110(fd)S
1236(=)S
(allowed(name_buf,)714 1320 A
(&s_buf,)294 2076 A
(X_BIT);)294 2412 A
3042(/*)S
3168(is)S
(file)168 3294 A
(executable?)462 3504 A
4008(*/)S
3960 V
(17174)210 648 A
1110(if)S
((fd)126 1236 A
1404(<)S
1488(0))S
(return(fd);)462 1614 A
2370(/*)S
(file)168 2496 A
(was)126 2706 A
(not)126 2874 A
(executable)420 3042 A
3504(*/)S
4050 V
(17175)210 648 A
4140 V
(17176)210 648 A
1110(/*)S
(Read)168 1236 A
(the)126 1446 A
(file)168 1614 A
(header)252 1824 A
(and)126 2118 A
(extract)294 2286 A
(the)126 2622 A
(segment)294 2790 A
(sizes.)252 3126 A
3420(*/)S
4230 V
(17177)210 648 A
1110(sc)S
1236(=)S
((stk_bytes)420 1320 A
1782(+)S
(CLICK_SIZE)420 1866 A
2328(-)S
2412(1))S
2538(>>)S
(CLICK_SHIFT;)504 2664 A
4320 V
(17178)210 648 A
1110(m)S
1194(=)S
(read_header(fd,)630 1278 A
(&ft,)168 1950 A
(&text_bytes,)504 2160 A
(&data_bytes,)504 2706 A
(&bss_bytes,)462 3252 A
4410 V
(17179)210 648 A
(&tot_bytes,)462 2706 A
(&sym_bytes,)462 3210 A
(sc,)126 3714 A
(&pc);)210 3882 A
4500 V
(17180)210 648 A
1110(if)S
1236((m)S
1362(<)S
1446(0))S
1572({)S
4590 V
(17181)210 648 A
(close(fd);)420 1362 A
2370(/*)S
(something)378 2496 A
(wrong)210 2916 A
(with)168 3168 A
(header)252 3378 A
3672(*/)S
4680 V
(17182)210 648 A
(return(ENOEXEC);)672 1362 A
4770 V
(17183)210 648 A
1110(})S
4860 V
(17184)210 648 A
4950 V
(17185)210 648 A
1110(/*)S
(Fetch)210 1236 A
(the)126 1488 A
(stack)210 1656 A
(from)168 1908 A
(the)126 2118 A
(user)168 2286 A
(before)252 2496 A
(destroying)420 2790 A
(the)126 3252 A
(old)126 3420 A
(core)168 3588 A
(image.)252 3798 A
4092(*/)S
5040 V
(17186)210 648 A
(src)126 1110 A
1278(=)S
((vir_bytes))462 1362 A
(stack_ptr;)420 1866 A
5130 V
(17187)210 648 A
(dst)126 1110 A
1278(=)S
((vir_bytes))462 1362 A
(mbuf;)210 1866 A
5220 V
(17188)210 648 A
1110(r)S
1194(=)S
(sys_copy(who,)546 1278 A
1866(D,)S
((phys_bytes))504 1992 A
(src,)168 2538 A
5310 V
(17189)210 648 A
(MM_PROC_NR,)462 2034 A
2538(D,)S
((phys_bytes))504 2664 A
(dst,)168 3210 A
((phys_bytes)stk_bytes);)966 3420 A
5400 V
(17190)210 648 A
1110(if)S
1236((r)S
1362(!=)S
(OK))126 1488 A
1656({)S
5490 V
(17191)210 648 A
(close(fd);)420 1362 A
2370(/*)S
(can't)210 2496 A
(fetch)210 2748 A
(stack)210 3000 A
((e.g.)210 3252 A
(bad)126 3504 A
(virtual)294 3672 A
(addr))210 4008 A
4260(*/)S
5580 V
(17192)210 648 A
(return(EACCES);)630 1362 A
5670 V
(17193)210 648 A
1110(})S
5760 V
(17194)210 648 A
5850 V
(17195)210 648 A
1110(/*)S
(Can)126 1236 A
(the)126 1404 A
(process')336 1572 A
(text)168 1950 A
2160(be)S
(shared)252 2286 A
(with)168 2580 A
(that)168 2790 A
3000(of)S
(one)126 3126 A
(already)294 3294 A
(running?)336 3630 A
4008(*/)S
5940 V
(17196)210 648 A
(sh_mp)210 1110 A
1362(=)S
(find_share(rmp,)630 1446 A
(s_buf.st_ino,)546 2118 A
(s_buf.st_dev,)546 2706 A
(s_buf.st_ctime);)672 3294 A
6030 V
(17197)210 648 A
6120 V
(17198)210 648 A
1110(/*)S
(Allocate)336 1236 A
(new)126 1614 A
(memory)252 1782 A
(and)126 2076 A
(release)294 2244 A
(old)126 2580 A
(memory.)294 2748 A
(Fix)126 3126 A
(map)126 3294 A
(and)126 3462 A
(tell)168 3630 A
(kernel.)294 3840 A
4176(*/)S
6210 V
(17199)210 648 A
1110(r)S
1194(=)S
(new_mem(sh_mp,)588 1278 A
(text_bytes,)462 1908 A
(data_bytes,)462 2412 A
(bss_bytes,)420 2916 A
(stk_bytes,)420 3378 A
(tot_bytes);)462 3840 A
8418 V
EP
%%Page: 238 238
BP
/slant 0 def
/height 0 def
630 V
12 B
(238)180 648 A
11 R
2098(File:)S
2331(src/mm/exec.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
(17200)210 648 A
1110(if)S
1236((r)S
1362(!=)S
(OK))126 1488 A
1656({)S
990 V
(17201)210 648 A
(close(fd);)420 1362 A
2370(/*)S
(insufficient)504 2496 A
(core)168 3042 A
3252(or)S
(program)294 3378 A
(too)126 3714 A
(big)126 3882 A
4050(*/)S
1080 V
(17202)210 648 A
(return(r);)420 1362 A
1170 V
(17203)210 648 A
1110(})S
1260 V
(17204)210 648 A
1350 V
(17205)210 648 A
1110(/*)S
(Save)168 1236 A
(file)168 1446 A
(identification)588 1656 A
2286(to)S
(allow)210 2412 A
2664(it)S
2790(to)S
2916(be)S
(shared.)294 3042 A
3378(*/)S
1440 V
(17206)210 648 A
(rmp->mp_ino)462 1110 A
1614(=)S
(s_buf.st_ino;)546 1698 A
1530 V
(17207)210 648 A
(rmp->mp_dev)462 1110 A
1614(=)S
(s_buf.st_dev;)546 1698 A
1620 V
(17208)210 648 A
(rmp->mp_ctime)546 1110 A
1698(=)S
(s_buf.st_ctime;)630 1782 A
1710 V
(17209)210 648 A
1800 V
(17210)210 648 A
1110(/*)S
(Patch)210 1236 A
1488(up)S
(stack)210 1614 A
(and)126 1866 A
(copy)168 2034 A
2244(it)S
(from)168 2370 A
2580(MM)S
2706(to)S
(new)126 2832 A
(core)168 3000 A
(image.)252 3210 A
3504(*/)S
1890 V
(17211)210 648 A
(vsp)126 1110 A
1278(=)S
((vir_bytes))462 1362 A
(rmp->mp_seg[S].mem_vir)924 1866 A
2832(<<)S
(CLICK_SHIFT;)504 2958 A
1980 V
(17212)210 648 A
(vsp)126 1110 A
1278(+=)S
((vir_bytes))462 1404 A
(rmp->mp_seg[S].mem_len)924 1908 A
2874(<<)S
(CLICK_SHIFT;)504 3000 A
2070 V
(17213)210 648 A
(vsp)126 1110 A
1278(-=)S
(stk_bytes;)420 1404 A
2160 V
(17214)210 648 A
(patch_ptr(mbuf,)630 1110 A
(vsp);)210 1782 A
2250 V
(17215)210 648 A
(src)126 1110 A
1278(=)S
((vir_bytes))462 1362 A
(mbuf;)210 1866 A
2340 V
(17216)210 648 A
1110(r)S
1194(=)S
(sys_copy(MM_PROC_NR,)840 1278 A
2160(D,)S
((phys_bytes))504 2286 A
(src,)168 2832 A
2430 V
(17217)210 648 A
(who,)168 2034 A
2244(D,)S
((phys_bytes))504 2370 A
(vsp,)168 2916 A
((phys_bytes)stk_bytes);)966 3126 A
2520 V
(17218)210 648 A
1110(if)S
1236((r)S
1362(!=)S
(OK))126 1488 A
(panic("do_exec)588 1656 A
(stack)210 2286 A
(copy)168 2538 A
(err",)210 2748 A
(NO_NUM);)336 3000 A
2610 V
(17219)210 648 A
2700 V
(17220)210 648 A
1110(/*)S
(Read)168 1236 A
1446(in)S
(text)168 1572 A
(and)126 1782 A
(data)168 1950 A
(segments.)378 2160 A
2580(*/)S
2790 V
(17221)210 648 A
1110(if)S
((sh_mp)252 1236 A
1530(!=)S
(NULL))210 1656 A
1908({)S
2880 V
(17222)210 648 A
(lseek(fd,)378 1362 A
((off_t))294 1782 A
(text_bytes,)462 2118 A
(SEEK_CUR);)420 2622 A
3126(/*)S
(shared:)294 3252 A
(skip)168 3588 A
(text)168 3798 A
4008(*/)S
2970 V
(17223)210 648 A
1110(})S
(else)168 1194 A
1404({)S
3060 V
(17224)210 648 A
(load_seg(fd,)504 1362 A
1908(T,)S
(text_bytes);)504 2034 A
3150 V
(17225)210 648 A
1110(})S
3240 V
(17226)210 648 A
(load_seg(fd,)504 1110 A
1656(D,)S
(data_bytes);)504 1782 A
3330 V
(17227)210 648 A
3420 V
(17228)210 648 A
3510 V
(17229)210 648 A
(close(fd);)420 1110 A
2370(/*)S
(don't)210 2496 A
(need)168 2748 A
(exec)168 2958 A
(file)168 3168 A
(any)126 3378 A
(more)168 3546 A
3756(*/)S
3600 V
(17230)210 648 A
3690 V
(17231)210 648 A
1110(/*)S
(Take)168 1236 A
(care)168 1446 A
1656(of)S
(setuid/setgid)546 1782 A
(bits.)210 2370 A
2622(*/)S
3780 V
(17232)210 648 A
1110(if)S
(((rmp->mp_flags)630 1236 A
1908(&)S
(TRACED))294 1992 A
2328(==)S
2454(0))S
2580({)S
2664(/*)S
(suppress)336 2790 A
3168(if)S
(tracing)294 3294 A
3630(*/)S
3870 V
(17233)210 648 A
1362(if)S
((s_buf.st_mode)588 1488 A
2118(&)S
(I_SET_UID_BIT))588 2202 A
2832({)S
3960 V
(17234)210 648 A
(rmp->mp_effuid)588 1698 A
2328(=)S
(s_buf.st_uid;)546 2412 A
4050 V
(17235)210 648 A
(tell_fs(SETUID,who,)798 1698 A
((int)rmp->mp_realuid,)882 2538 A
((int)rmp->mp_effuid);)882 3462 A
4140 V
(17236)210 648 A
1362(})S
4230 V
(17237)210 648 A
1362(if)S
((s_buf.st_mode)588 1488 A
2118(&)S
(I_SET_GID_BIT))588 2202 A
2832({)S
4320 V
(17238)210 648 A
(rmp->mp_effgid)588 1698 A
2328(=)S
(s_buf.st_gid;)546 2412 A
4410 V
(17239)210 648 A
(tell_fs(SETGID,who,)798 1698 A
((int)rmp->mp_realgid,)882 2538 A
((int)rmp->mp_effgid);)882 3462 A
4500 V
(17240)210 648 A
1362(})S
4590 V
(17241)210 648 A
1110(})S
4680 V
(17242)210 648 A
4770 V
(17243)210 648 A
1110(/*)S
(Save)168 1236 A
(offset)252 1446 A
1740(to)S
(initial)294 1866 A
(argc)168 2202 A
((for)168 2412 A
(ps))126 2622 A
2790(*/)S
4860 V
(17244)210 648 A
(rmp->mp_procargs)672 1110 A
1824(=)S
(vsp;)168 1908 A
4950 V
(17245)210 648 A
5040 V
(17246)210 648 A
1110(/*)S
(Fix)126 1236 A
('mproc')294 1404 A
(fields,)294 1740 A
(tell)168 2076 A
(kernel)252 2286 A
(that)168 2580 A
(exec)168 2790 A
3000(is)S
(done,)210 3126 A
(reset)210 3420 A
(caught)252 3672 A
(sigs.)210 3966 A
4218(*/)S
5130 V
(17247)210 648 A
(for)126 1110 A
((sn)126 1278 A
1446(=)S
1530(1;)S
1656(sn)S
1782(<=)S
(_NSIG;)252 1908 A
(sn++))210 2202 A
2454({)S
5220 V
(17248)210 648 A
1362(if)S
((sigismember(&rmp->mp_catch,)1176 1488 A
(sn)))168 2706 A
2916({)S
5310 V
(17249)210 648 A
(sigdelset(&rmp->mp_catch,)1050 1698 A
(sn);)168 2790 A
5400 V
(17250)210 648 A
(rmp->mp_sigact[sn].sa_handler)1218 1698 A
2958(=)S
(SIG_DFL;)336 3042 A
5490 V
(17251)210 648 A
(sigemptyset(&rmp->mp_sigact[sn].sa_mask);)1722 1698 A
5580 V
(17252)210 648 A
1362(})S
5670 V
(17253)210 648 A
1110(})S
5760 V
(17254)210 648 A
5850 V
(17255)210 648 A
(rmp->mp_flags)546 1110 A
1698(&=)S
(304SEPARATE;)420 1824 A
2370(/*)S
(turn)168 2496 A
(off)126 2706 A
(SEPARATE)336 2874 A
(bit)126 3252 A
3420(*/)S
5940 V
(17256)210 648 A
(rmp->mp_flags)546 1110 A
1698(|=)S
(ft;)126 1824 A
2370(/*)S
(turn)168 2496 A
2706(it)S
2832(on)S
(for)126 2958 A
(separate)336 3126 A
3504(I)S
3588(&)S
3672(D)S
(files)210 3756 A
4008(*/)S
6030 V
(17257)210 648 A
(new_sp)252 1110 A
1404(=)S
((char)210 1488 A
1740(*))S
(vsp;)168 1866 A
6120 V
(17258)210 648 A
6210 V
(17259)210 648 A
(tell_fs(EXEC,)546 1110 A
(who,)168 1698 A
1908(0,)S
(0);)126 2034 A
2370(/*)S
(allow)210 2496 A
2748(FS)S
2874(to)S
(handle)252 3000 A
(FD_CLOEXEC)420 3294 A
(files)210 3756 A
4008(*/)S
8418 V
EP
%%Page: 239 239
BP
/slant 0 def
/height 0 def
630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2098(File:)S
2331(src/mm/exec.c)S
12 B
(239)180 4248 A
900 V
7 LST
(17260)210 648 A
990 V
(17261)210 648 A
1110(/*)S
(System)252 1236 A
(will)168 1530 A
(save)168 1740 A
(command)294 1950 A
(line)168 2286 A
(for)126 2496 A
(debugging,)420 2664 A
(ps(1))210 3126 A
(output,)294 3378 A
(etc.)168 3714 A
3924(*/)S
1080 V
(17262)210 648 A
(basename)336 1110 A
1488(=)S
(strrchr(name_buf,)714 1572 A
('/');)210 2328 A
1170 V
(17263)210 648 A
1110(if)S
((basename)378 1236 A
1656(==)S
(NULL))210 1782 A
(basename)336 2034 A
2412(=)S
(name_buf;)378 2496 A
(else)168 2916 A
(basename++;)462 3126 A
1260 V
(17264)210 648 A
(sys_exec(who,)546 1110 A
(new_sp,)294 1698 A
(rmp->mp_flags)546 2034 A
2622(&)S
(TRACED,)294 2706 A
(basename,)378 3042 A
(pc);)168 3462 A
1350 V
(17265)210 648 A
(return(OK);)462 1110 A
1440 V
(17266)210 648 A
1026(})S
1710 V
(17269)210 648 A
(/*===========================================================================*)3276 1026 A
1800 V
(17270)210 648 A
1068(*)S
(read_header)462 2370 A
4260(*)S
1890 V
(17271)210 648 A
(*===========================================================================*/)3276 1068 A
1980 V
(17272)210 648 A
(PRIVATE)294 1026 A
(int)126 1362 A
(read_header(fd,)630 1530 A
(ft,)126 2202 A
(text_bytes,)462 2370 A
(data_bytes,)462 2874 A
(bss_bytes,)420 3378 A
2070 V
(17273)210 648 A
(tot_bytes,)420 3042 A
(sym_bytes,)420 3504 A
(sc,)126 3966 A
(pc))126 4134 A
2160 V
(17274)210 648 A
(int)126 1026 A
(fd;)126 1194 A
2370(/*)S
(file)168 2496 A
(descriptor)420 2706 A
(for)126 3168 A
(reading)294 3336 A
(exec)168 3672 A
(file)168 3882 A
4092(*/)S
2250 V
(17275)210 648 A
(int)126 1026 A
(*ft;)168 1194 A
2370(/*)S
(place)210 2496 A
2748(to)S
(return)252 2874 A
3168(ft)S
(number)252 3294 A
3588(*/)S
2340 V
(17276)210 648 A
(vir_bytes)378 1026 A
(*text_bytes;)504 1446 A
2370(/*)S
(place)210 2496 A
2748(to)S
(return)252 2874 A
(text)168 3168 A
(size)168 3378 A
3588(*/)S
2430 V
(17277)210 648 A
(vir_bytes)378 1026 A
(*data_bytes;)504 1446 A
2370(/*)S
(place)210 2496 A
2748(to)S
(return)252 2874 A
(initialized)462 3168 A
(data)168 3672 A
(size)168 3882 A
4092(*/)S
2520 V
(17278)210 648 A
(vir_bytes)378 1026 A
(*bss_bytes;)462 1446 A
2370(/*)S
(place)210 2496 A
2748(to)S
(return)252 2874 A
(bss)126 3168 A
(size)168 3336 A
3546(*/)S
2610 V
(17279)210 648 A
(phys_bytes)420 1026 A
(*tot_bytes;)462 1488 A
2370(/*)S
(place)210 2496 A
2748(to)S
(return)252 2874 A
(total)210 3168 A
(size)168 3420 A
3630(*/)S
2700 V
(17280)210 648 A
(long)168 1026 A
(*sym_bytes;)462 1236 A
2370(/*)S
(place)210 2496 A
2748(to)S
(return)252 2874 A
(symbol)252 3168 A
(table)210 3462 A
(size)168 3714 A
3924(*/)S
2790 V
(17281)210 648 A
(vir_clicks)420 1026 A
(sc;)126 1488 A
2370(/*)S
(stack)210 2496 A
(size)168 2748 A
2958(in)S
(clicks)252 3084 A
3378(*/)S
2880 V
(17282)210 648 A
(vir_bytes)378 1026 A
(*pc;)168 1446 A
2370(/*)S
(program)294 2496 A
(entry)210 2832 A
(point)210 3084 A
((initial)336 3336 A
(PC))126 3714 A
3882(*/)S
2970 V
(17283)210 648 A
1026({)S
3060 V
(17284)210 648 A
1026(/*)S
(Read)168 1152 A
(the)126 1362 A
(header)252 1530 A
(and)126 1824 A
(extract)294 1992 A
(the)126 2328 A
(text,)210 2496 A
(data,)210 2748 A
(bss)126 3000 A
(and)126 3168 A
(total)210 3336 A
(sizes)210 3588 A
(from)168 3840 A
(it.)126 4050 A
4218(*/)S
3150 V
(17285)210 648 A
3240 V
(17286)210 648 A
(int)126 1110 A
1278(m,)S
(ct;)126 1404 A
3330 V
(17287)210 648 A
(vir_clicks)420 1110 A
(tc,)126 1572 A
(dc,)126 1740 A
(s_vir,)252 1908 A
(dvir;)210 2202 A
3420 V
(17288)210 648 A
(phys_clicks)462 1110 A
(totc;)210 1614 A
3510 V
(17289)210 648 A
(struct)252 1110 A
(exec)168 1404 A
(hdr;)168 1614 A
2370(/*)S
(a.out)210 2496 A
(header)252 2748 A
3042(is)S
(read)168 3168 A
3378(in)S
(here)168 3504 A
3714(*/)S
3600 V
(17290)210 648 A
3690 V
(17291)210 648 A
1110(/*)S
(Read)168 1236 A
(the)126 1446 A
(header)252 1614 A
(and)126 1908 A
(check)210 2076 A
(the)126 2328 A
(magic)210 2496 A
(number.)294 2748 A
(The)126 3126 A
(standard)336 3294 A
(MINIX)210 3672 A
(header)252 3924 A
3780 V
(17292)210 648 A
1152(*)S
1236(is)S
(defined)294 1362 A
1698(in)S
(<a.out.h>.)420 1824 A
2328(It)S
(consists)336 2454 A
2832(of)S
2958(8)S
(chars)210 3042 A
(followed)336 3294 A
3672(by)S
3798(6)S
(longs.)252 3882 A
3870 V
(17293)210 648 A
1152(*)S
(Then)168 1236 A
(come)168 1446 A
1656(4)S
(more)168 1740 A
(longs)210 1950 A
(that)168 2202 A
(are)126 2412 A
(not)126 2580 A
(used)168 2748 A
(here.)210 2958 A
3960 V
(17294)210 648 A
1152(*)S
(Byte)168 1362 A
1572(0:)S
(magic)210 1698 A
(number)252 1950 A
(0x01)168 2244 A
4050 V
(17295)210 648 A
1152(*)S
(Byte)168 1362 A
1572(1:)S
(magic)210 1698 A
(number)252 1950 A
(0x03)168 2244 A
4140 V
(17296)210 648 A
1152(*)S
(Byte)168 1362 A
1572(2:)S
(normal)252 1698 A
1992(=)S
(0x10)168 2076 A
((not)168 2286 A
(checked,)336 2496 A
2874(0)S
2958(is)S
(OK),)168 3084 A
(separate)336 3294 A
(I/D)126 3672 A
3840(=)S
(0x20)168 3924 A
4230 V
(17297)210 648 A
1152(*)S
(Byte)168 1362 A
1572(3:)S
(CPU)126 1698 A
(type,)210 1866 A
(Intel)210 2118 A
2370(16)S
(bit)126 2496 A
2664(=)S
(0x04,)210 2748 A
(Intel)210 3000 A
3252(32)S
(bit)126 3378 A
3546(=)S
(0x10,)210 3630 A
4320 V
(17298)210 648 A
1152(*)S
(Motorola)336 1698 A
2076(=)S
(0x0B,)210 2160 A
(Sun)126 2412 A
(SPARC)210 2580 A
2832(=)S
(0x17)168 2916 A
4410 V
(17299)210 648 A
1152(*)S
(Byte)168 1362 A
1572(4:)S
(Header)252 1698 A
(length)252 1992 A
2286(=)S
(0x20)168 2370 A
4500 V
(17300)210 648 A
1152(*)S
(Bytes)210 1362 A
(5-7)126 1614 A
(are)126 1782 A
(not)126 1950 A
(used.)210 2118 A
4590 V
(17301)210 648 A
1152(*)S
4680 V
(17302)210 648 A
1152(*)S
(Now)126 1362 A
(come)168 1530 A
(the)126 1740 A
1908(6)S
(longs)210 1992 A
4770 V
(17303)210 648 A
1152(*)S
(Bytes)210 1362 A
(8-11:)210 1656 A
(size)168 1908 A
2118(of)S
(text)168 2244 A
(segments)336 2454 A
2832(in)S
(bytes)210 2958 A
4860 V
(17304)210 648 A
1152(*)S
(Bytes)210 1362 A
(12-15:)252 1614 A
(size)168 1908 A
2118(of)S
(initialized)462 2244 A
(data)168 2748 A
(segment)294 2958 A
3294(in)S
(bytes)210 3420 A
4950 V
(17305)210 648 A
1152(*)S
(Bytes)210 1362 A
(16-19:)252 1614 A
(size)168 1908 A
2118(of)S
(bss)126 2244 A
2412(in)S
(bytes)210 2538 A
5040 V
(17306)210 648 A
1152(*)S
(Bytes)210 1362 A
(20-23:)252 1614 A
(program)294 1908 A
(entry)210 2244 A
(point)210 2496 A
5130 V
(17307)210 648 A
1152(*)S
(Bytes)210 1362 A
(24-27:)252 1614 A
(total)210 1908 A
(memory)252 2160 A
(allocated)378 2454 A
2874(to)S
(program)294 3000 A
((text,)252 3336 A
(data)168 3630 A
3840(+)S
(stack))252 3924 A
5220 V
(17308)210 648 A
1152(*)S
(Bytes)210 1362 A
(28-31:)252 1614 A
(size)168 1908 A
2118(of)S
(symbol)252 2244 A
(table)210 2538 A
2790(in)S
(bytes)210 2916 A
5310 V
(17309)210 648 A
1152(*)S
(The)126 1236 A
(longs)210 1404 A
(are)126 1656 A
(represented)462 1824 A
2328(in)S
2454(a)S
(machine)294 2538 A
(dependent)378 2874 A
(order,)252 3294 A
5400 V
(17310)210 648 A
1152(*)S
(little-endian)546 1236 A
1824(on)S
(the)126 1950 A
(8088,)210 2118 A
(big-endian)420 2370 A
2832(on)S
(the)126 2958 A
(68000.)252 3126 A
5490 V
(17311)210 648 A
1152(*)S
(The)126 1236 A
(header)252 1404 A
1698(is)S
(followed)336 1824 A
(directly)336 2202 A
2580(by)S
(the)126 2706 A
(text)168 2874 A
(and)126 3084 A
(data)168 3252 A
(segments,)378 3462 A
(and)126 3882 A
(the)126 4050 A
5580 V
(17312)210 648 A
1152(*)S
(symbol)252 1236 A
(table)210 1530 A
((if)126 1782 A
(any).)210 1950 A
(The)126 2202 A
(sizes)210 2370 A
(are)126 2622 A
(given)210 2790 A
3042(in)S
(the)126 3168 A
(header.)294 3336 A
(Only)168 3672 A
(the)126 3882 A
5670 V
(17313)210 648 A
1152(*)S
(text)168 1236 A
(and)126 1446 A
(data)168 1614 A
(segments)336 1824 A
(are)126 2202 A
(copied)252 2370 A
(into)168 2664 A
(memory)252 2874 A
3168(by)S
(exec.)210 3294 A
(The)126 3546 A
(header)252 3714 A
4008(is)S
5760 V
(17314)210 648 A
1152(*)S
(used)168 1236 A
(here)168 1446 A
(only.)210 1656 A
(The)126 1908 A
(symbol)252 2076 A
(table)210 2370 A
2622(is)S
(for)126 2748 A
(the)126 2916 A
(benefit)294 3084 A
3420(of)S
3546(a)S
(debugger)336 3630 A
(and)126 4008 A
5850 V
(17315)210 648 A
1152(*)S
1236(is)S
(ignored)294 1362 A
(here.)210 1698 A
5940 V
(17316)210 648 A
1152(*/)S
6030 V
(17317)210 648 A
6120 V
(17318)210 648 A
1110(if)S
((read(fd,)378 1236 A
((char)210 1656 A
1908(*))S
(&hdr,)210 2034 A
(A_MINHDR))378 2286 A
2706(!=)S
(A_MINHDR))378 2832 A
(return(ENOEXEC);)672 3252 A
6210 V
(17319)210 648 A
8418 V
EP
%%Page: 240 240
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/slant 0 def
/height 0 def
630 V
12 B
(240)180 648 A
11 R
2098(File:)S
2331(src/mm/exec.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
(17320)210 648 A
1110(/*)S
(Check)210 1236 A
(magic)210 1488 A
(number,)294 1740 A
(cpu)126 2076 A
(type,)210 2244 A
(and)126 2496 A
(flags.)252 2664 A
2958(*/)S
990 V
(17321)210 648 A
1110(if)S
((BADMAG(hdr)))546 1236 A
(return(ENOEXEC);)672 1824 A
1080 V
(17322)210 648 A
(#if)126 1026 A
((CHIP)210 1194 A
1446(==)S
(INTEL)210 1572 A
1824(&&)S
(_WORD_SIZE)420 1950 A
2412(==)S
2538(2))S
1170 V
(17323)210 648 A
1110(if)S
((hdr.a_cpu)420 1236 A
1698(!=)S
(A_I8086))336 1824 A
(return(ENOEXEC);)672 2202 A
1260 V
(17324)210 648 A
(#endif)252 1026 A
1350 V
(17325)210 648 A
(#if)126 1026 A
((CHIP)210 1194 A
1446(==)S
(INTEL)210 1572 A
1824(&&)S
(_WORD_SIZE)420 1950 A
2412(==)S
2538(4))S
1440 V
(17326)210 648 A
1110(if)S
((hdr.a_cpu)420 1236 A
1698(!=)S
(A_I80386))378 1824 A
(return(ENOEXEC);)672 2244 A
1530 V
(17327)210 648 A
(#endif)252 1026 A
1620 V
(17328)210 648 A
1110(if)S
(((hdr.a_flags)546 1236 A
1824(&)S
(304(A_NSYM)336 1908 A
2286(|)S
(A_EXEC)252 2370 A
2664(|)S
(A_SEP)))294 2748 A
3084(!=)S
3210(0))S
(return(ENOEXEC);)672 3336 A
1710 V
(17329)210 648 A
1800 V
(17330)210 648 A
(*ft)126 1110 A
1278(=)S
1362(()S
((hdr.a_flags)504 1446 A
1992(&)S
(A_SEP))252 2076 A
2370(?)S
(SEPARATE)336 2454 A
2832(:)S
(0);)126 2916 A
3210(/*)S
(separate)336 3336 A
3714(I)S
3798(&)S
3882(D)S
3966(or)S
(not)126 4092 A
4260(*/)S
1890 V
(17331)210 648 A
1980 V
(17332)210 648 A
1110(/*)S
(Get)126 1236 A
(text)168 1404 A
(and)126 1614 A
(data)168 1782 A
(sizes.)252 1992 A
2286(*/)S
2070 V
(17333)210 648 A
(*text_bytes)462 1110 A
1614(=)S
((vir_bytes))462 1698 A
(hdr.a_text;)462 2202 A
2706(/*)S
(text)168 2832 A
(size)168 3042 A
3252(in)S
(bytes)210 3378 A
3630(*/)S
2160 V
(17334)210 648 A
(*data_bytes)462 1110 A
1614(=)S
((vir_bytes))462 1698 A
(hdr.a_data;)462 2202 A
2706(/*)S
(data)168 2832 A
(size)168 3042 A
3252(in)S
(bytes)210 3378 A
3630(*/)S
2250 V
(17335)210 648 A
(*bss_bytes)420 1110 A
1614(=)S
((vir_bytes))462 1698 A
(hdr.a_bss;)420 2202 A
2706(/*)S
(bss)126 2832 A
(size)168 3000 A
3210(in)S
(bytes)210 3336 A
3588(*/)S
2340 V
(17336)210 648 A
(*tot_bytes)420 1110 A
1614(=)S
(hdr.a_total;)504 1698 A
2706(/*)S
(total)210 2832 A
(bytes)210 3084 A
3336(to)S
(allocate)336 3462 A
(for)126 3840 A
(prog)168 4008 A
4218(*/)S
2430 V
(17337)210 648 A
(*sym_bytes)420 1110 A
1614(=)S
(hdr.a_syms;)462 1698 A
2706(/*)S
(symbol)252 2832 A
(table)210 3126 A
(size)168 3378 A
3588(in)S
(bytes)210 3714 A
3966(*/)S
2520 V
(17338)210 648 A
1110(if)S
((*tot_bytes)462 1236 A
1740(==)S
1866(0))S
(return(ENOEXEC);)672 1992 A
2610 V
(17339)210 648 A
2700 V
(17340)210 648 A
1110(if)S
((*ft)168 1236 A
1446(!=)S
(SEPARATE))378 1572 A
1992({)S
2790 V
(17341)210 648 A
2880 V
(17342)210 648 A
1362(/*)S
1488(If)S
1614(I)S
1698(&)S
1782(D)S
(space)210 1866 A
2118(is)S
(not)126 2244 A
(separated,)420 2412 A
2874(it)S
3000(is)S
(all)126 3126 A
(considered)420 3294 A
(data.)210 3756 A
(Text=0*/)336 4008 A
2970 V
(17343)210 648 A
(*data_bytes)462 1362 A
1866(+=)S
(*text_bytes;)504 1992 A
3060 V
(17344)210 648 A
(*text_bytes)462 1362 A
1866(=)S
1950(0;)S
3150 V
(17345)210 648 A
3240 V
(17346)210 648 A
1110(})S
3330 V
(17347)210 648 A
(*pc)126 1110 A
1278(=)S
(hdr.a_entry;)504 1362 A
2034(/*)S
(initial)294 2160 A
(address)294 2496 A
2832(to)S
(start)210 2958 A
(execution)378 3210 A
3630(*/)S
3420 V
(17348)210 648 A
3510 V
(17349)210 648 A
1110(/*)S
(Check)210 1236 A
1488(to)S
(see)126 1614 A
1782(if)S
(segment)294 1908 A
(sizes)210 2244 A
(are)126 2496 A
(feasible.)378 2664 A
3084(*/)S
3600 V
(17350)210 648 A
1110(tc)S
1236(=)S
(((unsigned)420 1320 A
(long))210 1782 A
(*text_bytes)462 2034 A
2538(+)S
(CLICK_SIZE)420 2622 A
3084(-)S
3168(1))S
3294(>>)S
(CLICK_SHIFT;)504 3420 A
3690 V
(17351)210 648 A
1110(dc)S
1236(=)S
((*data_bytes)504 1320 A
1866(+)S
(*bss_bytes)420 1950 A
2412(+)S
(CLICK_SIZE)420 2496 A
2958(-)S
3042(1))S
3168(>>)S
(CLICK_SHIFT;)504 3294 A
3780 V
(17352)210 648 A
(totc)168 1110 A
1320(=)S
((*tot_bytes)462 1404 A
1908(+)S
(CLICK_SIZE)420 1992 A
2454(-)S
2538(1))S
2664(>>)S
(CLICK_SHIFT;)504 2790 A
3870 V
(17353)210 648 A
1110(if)S
((dc)126 1236 A
1404(>=)S
(totc))210 1530 A
(return(ENOEXEC);)672 1782 A
2706(/*)S
(stack)210 2832 A
(must)168 3084 A
3294(be)S
3420(at)S
(least)210 3546 A
3798(1)S
(click)210 3882 A
4134(*/)S
3960 V
(17354)210 648 A
(dvir)168 1110 A
1320(=)S
((*ft)168 1404 A
1614(==)S
(SEPARATE)336 1740 A
2118(?)S
2202(0)S
2286(:)S
(tc);)168 2370 A
4050 V
(17355)210 648 A
(s_vir)210 1110 A
1362(=)S
(dvir)168 1446 A
1656(+)S
((totc)210 1740 A
1992(-)S
(sc);)168 2076 A
4140 V
(17356)210 648 A
1110(m)S
1194(=)S
(size_ok(*ft,)504 1278 A
(tc,)126 1824 A
(dc,)126 1992 A
(sc,)126 2160 A
(dvir,)210 2328 A
(s_vir);)294 2580 A
4230 V
(17357)210 648 A
1110(ct)S
1236(=)S
(hdr.a_hdrlen)504 1320 A
1866(&)S
(BYTE;)210 1950 A
2706(/*)S
(header)252 2832 A
(length)252 3126 A
3420(*/)S
4320 V
(17358)210 648 A
1110(if)S
((ct)126 1236 A
1404(>)S
(A_MINHDR))378 1488 A
(lseek(fd,)378 1908 A
((off_t))294 2328 A
(ct,)126 2664 A
(SEEK_SET);)420 2832 A
3294(/*)S
(skip)168 3420 A
(unused)252 3630 A
(hdr)126 3924 A
4092(*/)S
4410 V
(17359)210 648 A
(return(m);)420 1110 A
4500 V
(17360)210 648 A
1026(})S
4770 V
(17363)210 648 A
(/*===========================================================================*)3276 1026 A
4860 V
(17364)210 648 A
1068(*)S
(new_mem)294 2370 A
4260(*)S
4950 V
(17365)210 648 A
(*===========================================================================*/)3276 1068 A
5040 V
(17366)210 648 A
(PRIVATE)294 1026 A
(int)126 1362 A
(new_mem(sh_mp,)588 1530 A
(text_bytes,)462 2160 A
(data_bytes,bss_bytes,stk_bytes,tot_bytes))1722 2664 A
5130 V
(17367)210 648 A
(struct)252 1026 A
(mproc)210 1320 A
(*sh_mp;)294 1572 A
2370(/*)S
(text)168 2496 A
(can)126 2706 A
2874(be)S
(shared)252 3000 A
(with)168 3294 A
(this)168 3504 A
(process)294 3714 A
4050(*/)S
5220 V
(17368)210 648 A
(vir_bytes)378 1026 A
(text_bytes;)462 1446 A
2370(/*)S
(text)168 2496 A
(segment)294 2706 A
(size)168 3042 A
3252(in)S
(bytes)210 3378 A
3630(*/)S
5310 V
(17369)210 648 A
(vir_bytes)378 1026 A
(data_bytes;)462 1446 A
2370(/*)S
(size)168 2496 A
2706(of)S
(initialized)462 2832 A
(data)168 3336 A
3546(in)S
(bytes)210 3672 A
3924(*/)S
5400 V
(17370)210 648 A
(vir_bytes)378 1026 A
(bss_bytes;)420 1446 A
2370(/*)S
(size)168 2496 A
2706(of)S
(bss)126 2832 A
3000(in)S
(bytes)210 3126 A
3378(*/)S
5490 V
(17371)210 648 A
(vir_bytes)378 1026 A
(stk_bytes;)420 1446 A
2370(/*)S
(size)168 2496 A
2706(of)S
(initial)294 2832 A
(stack)210 3168 A
(segment)294 3420 A
3756(in)S
(bytes)210 3882 A
4134(*/)S
5580 V
(17372)210 648 A
(phys_bytes)420 1026 A
(tot_bytes;)420 1488 A
2370(/*)S
(total)210 2496 A
(memory)252 2748 A
3042(to)S
(allocate,)378 3168 A
(including)378 3588 A
(gap)126 4008 A
4176(*/)S
5670 V
(17373)210 648 A
1026({)S
5760 V
(17374)210 648 A
1026(/*)S
(Allocate)336 1152 A
(new)126 1530 A
(memory)252 1698 A
(and)126 1992 A
(release)294 2160 A
(the)126 2496 A
(old)126 2664 A
(memory.)294 2832 A
(Change)252 3210 A
(the)126 3504 A
(map)126 3672 A
(and)126 3840 A
(report)252 4008 A
5850 V
(17375)210 648 A
1068(*)S
(the)126 1152 A
(new)126 1320 A
(map)126 1488 A
1656(to)S
(the)126 1782 A
(kernel.)294 1950 A
(Zero)168 2328 A
(the)126 2538 A
(new)126 2706 A
(core)168 2874 A
(image's)294 3084 A
(bss,)168 3420 A
(gap)126 3630 A
(and)126 3798 A
(stack.)252 3966 A
5940 V
(17376)210 648 A
1068(*/)S
6030 V
(17377)210 648 A
6120 V
(17378)210 648 A
(register)336 1110 A
(struct)252 1488 A
(mproc)210 1782 A
(*rmp;)210 2034 A
6210 V
(17379)210 648 A
(vir_clicks)420 1110 A
(text_clicks,)504 1572 A
(data_clicks,)504 2118 A
(gap_clicks,)462 2664 A
(stack_clicks,)546 3168 A
(tot_clicks;)462 3756 A
8418 V
EP
%%Page: 241 241
BP
/slant 0 def
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630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2098(File:)S
2331(src/mm/exec.c)S
12 B
(241)180 4248 A
900 V
7 LST
(17380)210 648 A
(phys_clicks)462 1110 A
(new_base;)378 1614 A
990 V
(17381)210 648 A
1080 V
(17382)210 648 A
(static)252 1110 A
(char)168 1404 A
(zero[1024];)462 1614 A
2706(/*)S
(used)168 2832 A
3042(to)S
(zero)168 3168 A
(bss)126 3378 A
3546(*/)S
1170 V
(17383)210 648 A
(phys_bytes)420 1110 A
(bytes,)252 1572 A
(base,)210 1866 A
(count,)252 2118 A
(bss_offset;)462 2412 A
1260 V
(17384)210 648 A
1350 V
(17385)210 648 A
1110(/*)S
1236(No)S
(need)168 1362 A
1572(to)S
(allocate)336 1698 A
(text)168 2076 A
2286(if)S
2412(it)S
(can)126 2538 A
2706(be)S
(shared.)294 2832 A
3168(*/)S
1440 V
(17386)210 648 A
1110(if)S
((sh_mp)252 1236 A
1530(!=)S
(NULL))210 1656 A
(text_bytes)420 1908 A
2370(=)S
2454(0;)S
1530 V
(17387)210 648 A
1620 V
(17388)210 648 A
1110(/*)S
(Acquire)294 1236 A
(the)126 1572 A
(new)126 1740 A
(memory.)294 1908 A
(Each)168 2286 A
2496(of)S
(the)126 2622 A
2790(4)S
(parts:)252 2874 A
(text,)210 3168 A
((data+bss),)462 3420 A
(gap,)168 3924 A
1710 V
(17389)210 648 A
1152(*)S
(and)126 1236 A
(stack)210 1404 A
(occupies)336 1656 A
2034(an)S
(integral)336 2160 A
(number)252 2538 A
2832(of)S
(clicks,)294 2958 A
(starting)336 3294 A
3672(at)S
(click)210 3798 A
1800 V
(17390)210 648 A
1152(*)S
(boundary.)378 1236 A
(The)126 1698 A
(data)168 1866 A
(and)126 2076 A
(bss)126 2244 A
(parts)210 2412 A
(are)126 2664 A
(run)126 2832 A
(together)336 3000 A
(with)168 3378 A
3588(no)S
(space.)252 3714 A
1890 V
(17391)210 648 A
1152(*/)S
1980 V
(17392)210 648 A
2070 V
(17393)210 648 A
(text_clicks)462 1110 A
1614(=)S
(((unsigned)420 1698 A
(long))210 2160 A
(text_bytes)420 2412 A
2874(+)S
(CLICK_SIZE)420 2958 A
3420(-)S
3504(1))S
3630(>>)S
(CLICK_SHIFT;)504 3756 A
2160 V
(17394)210 648 A
(data_clicks)462 1110 A
1614(=)S
((data_bytes)462 1698 A
2202(+)S
(bss_bytes)378 2286 A
2706(+)S
(CLICK_SIZE)420 2790 A
3252(-)S
3336(1))S
3462(>>)S
(CLICK_SHIFT;)504 3588 A
2250 V
(17395)210 648 A
(stack_clicks)504 1110 A
1656(=)S
((stk_bytes)420 1740 A
2202(+)S
(CLICK_SIZE)420 2286 A
2748(-)S
2832(1))S
2958(>>)S
(CLICK_SHIFT;)504 3084 A
2340 V
(17396)210 648 A
(tot_clicks)420 1110 A
1572(=)S
((tot_bytes)420 1656 A
2118(+)S
(CLICK_SIZE)420 2202 A
2664(-)S
2748(1))S
2874(>>)S
(CLICK_SHIFT;)504 3000 A
2430 V
(17397)210 648 A
(gap_clicks)420 1110 A
1572(=)S
(tot_clicks)420 1656 A
2118(-)S
(data_clicks)462 2202 A
2706(-)S
(stack_clicks;)546 2790 A
2520 V
(17398)210 648 A
1110(if)S
1236(()S
((int))210 1320 A
(gap_clicks)420 1572 A
2034(<)S
2118(0))S
(return(ENOMEM);)630 2244 A
2610 V
(17399)210 648 A
2700 V
(17400)210 648 A
1110(/*)S
(Check)210 1236 A
1488(to)S
(see)126 1614 A
1782(if)S
(there)210 1908 A
2160(is)S
2286(a)S
(hole)168 2370 A
(big)126 2580 A
(enough.)294 2748 A
3126(If)S
(so,)126 3252 A
3420(we)S
(can)126 3546 A
(risk)168 3714 A
(first)210 3924 A
2790 V
(17401)210 648 A
1152(*)S
(releasing)378 1236 A
(the)126 1656 A
(old)126 1824 A
(core)168 1992 A
(image)210 2202 A
(before)252 2454 A
(allocating)420 2748 A
(the)126 3210 A
(new)126 3378 A
(one,)168 3546 A
(since)210 3756 A
4008(we)S
2880 V
(17402)210 648 A
1152(*)S
(know)168 1236 A
1446(it)S
(will)168 1572 A
(succeed.)336 1782 A
2202(If)S
(there)210 2328 A
2580(is)S
(not)126 2706 A
(enough,)294 2874 A
(return)252 3210 A
(failure.)336 3504 A
2970 V
(17403)210 648 A
1152(*/)S
3060 V
(17404)210 648 A
1110(if)S
((text_clicks)504 1236 A
1782(+)S
(tot_clicks)420 1866 A
2328(>)S
(max_hole()))462 2412 A
(return(EAGAIN);)630 2916 A
3150 V
(17405)210 648 A
3240 V
(17406)210 648 A
1110(/*)S
(There)210 1236 A
1488(is)S
(enough)252 1614 A
(memory)252 1908 A
(for)126 2202 A
(the)126 2370 A
(new)126 2538 A
(core)168 2706 A
(image.)252 2916 A
(Release)294 3252 A
(the)126 3588 A
(old)126 3756 A
(one.)168 3924 A
4134(*/)S
3330 V
(17407)210 648 A
(rmp)126 1110 A
1278(=)S
(mp;)126 1362 A
3420 V
(17408)210 648 A
3510 V
(17409)210 648 A
1110(if)S
((find_share(rmp,)672 1236 A
(rmp->mp_ino,)504 1950 A
(rmp->mp_dev,)504 2496 A
(rmp->mp_ctime))588 3042 A
3672(==)S
(NULL))210 3798 A
4050({)S
3600 V
(17410)210 648 A
1362(/*)S
1488(No)S
(other)210 1614 A
(process)294 1866 A
(shares)252 2202 A
(the)126 2496 A
(text)168 2664 A
(segment,)336 2874 A
3252(so)S
(free)168 3378 A
(it.)126 3588 A
3756(*/)S
3690 V
(17411)210 648 A
(free_mem(rmp->mp_seg[T].mem_phys,)1386 1362 A
(rmp->mp_seg[T].mem_len);)1008 2790 A
3780 V
(17412)210 648 A
1110(})S
3870 V
(17413)210 648 A
1110(/*)S
(Free)168 1236 A
(the)126 1446 A
(data)168 1614 A
(and)126 1824 A
(stack)210 1992 A
(segments.)378 2244 A
2664(*/)S
3960 V
(17414)210 648 A
(free_mem(rmp->mp_seg[D].mem_phys,)1386 1110 A
4050 V
(17415)210 648 A
(rmp->mp_seg[S].mem_vir)924 1278 A
2244(+)S
(rmp->mp_seg[S].mem_len)924 2328 A
3294(-)S
(rmp->mp_seg[D].mem_vir);)1008 3378 A
4140 V
(17416)210 648 A
4230 V
(17417)210 648 A
1110(/*)S
1236(We)S
(have)168 1362 A
(now)126 1572 A
(passed)252 1740 A
(the)126 2034 A
(point)210 2202 A
2454(of)S
2580(no)S
(return.)294 2706 A
(The)126 3084 A
(old)126 3252 A
(core)168 3420 A
(image)210 3630 A
(has)126 3882 A
(been)168 4050 A
4320 V
(17418)210 648 A
1152(*)S
(forever)294 1236 A
(lost.)210 1572 A
(The)126 1866 A
(call)168 2034 A
(must)168 2244 A
2454(go)S
(through)294 2580 A
(now.)168 2916 A
(Set)126 3168 A
3336(up)S
(and)126 3462 A
(report)252 3630 A
(new)126 3924 A
(map.)168 4092 A
4410 V
(17419)210 648 A
1152(*/)S
4500 V
(17420)210 648 A
(new_base)336 1110 A
1488(=)S
(alloc_mem(text_clicks)882 1572 A
2496(+)S
(tot_clicks);)504 2580 A
3378(/*)S
(new)126 3504 A
(core)168 3672 A
(image)210 3882 A
4134(*/)S
4590 V
(17421)210 648 A
1110(if)S
((new_base)378 1236 A
1656(==)S
(NO_MEM))294 1782 A
(panic("MM)378 2118 A
(hole)168 2538 A
(list)168 2748 A
2958(is)S
(inconsistent",)588 3084 A
(NO_NUM);)336 3714 A
4680 V
(17422)210 648 A
4770 V
(17423)210 648 A
1110(if)S
((sh_mp)252 1236 A
1530(!=)S
(NULL))210 1656 A
1908({)S
4860 V
(17424)210 648 A
1362(/*)S
(Share)210 1488 A
(the)126 1740 A
(text)168 1908 A
(segment.)336 2118 A
2496(*/)S
4950 V
(17425)210 648 A
(rmp->mp_seg[T])588 1362 A
1992(=)S
(sh_mp->mp_seg[T];)714 2076 A
5040 V
(17426)210 648 A
1110(})S
(else)168 1194 A
1404({)S
5130 V
(17427)210 648 A
(rmp->mp_seg[T].mem_phys)966 1362 A
2370(=)S
(new_base;)378 2454 A
5220 V
(17428)210 648 A
(rmp->mp_seg[T].mem_vir)924 1362 A
2328(=)S
2412(0;)S
5310 V
(17429)210 648 A
(rmp->mp_seg[T].mem_len)924 1362 A
2328(=)S
(text_clicks;)504 2412 A
5400 V
(17430)210 648 A
1110(})S
5490 V
(17431)210 648 A
(rmp->mp_seg[D].mem_phys)966 1110 A
2118(=)S
(new_base)336 2202 A
2580(+)S
(text_clicks;)504 2664 A
5580 V
(17432)210 648 A
(rmp->mp_seg[D].mem_vir)924 1110 A
2076(=)S
2160(0;)S
5670 V
(17433)210 648 A
(rmp->mp_seg[D].mem_len)924 1110 A
2076(=)S
(data_clicks;)504 2160 A
5760 V
(17434)210 648 A
(rmp->mp_seg[S].mem_phys)966 1110 A
2118(=)S
(rmp->mp_seg[D].mem_phys)966 2202 A
3210(+)S
(data_clicks)462 3294 A
3798(+)S
(gap_clicks;)462 3882 A
5850 V
(17435)210 648 A
(rmp->mp_seg[S].mem_vir)924 1110 A
2076(=)S
(rmp->mp_seg[D].mem_vir)924 2160 A
3126(+)S
(data_clicks)462 3210 A
3714(+)S
(gap_clicks;)462 3798 A
5940 V
(17436)210 648 A
(rmp->mp_seg[S].mem_len)924 1110 A
2076(=)S
(stack_clicks;)546 2160 A
6030 V
(17437)210 648 A
6120 V
(17438)210 648 A
6210 V
(17439)210 648 A
(sys_newmap(who,)630 1110 A
(rmp->mp_seg);)546 1782 A
2454(/*)S
(report)252 2580 A
(new)126 2874 A
(map)126 3042 A
3210(to)S
(the)126 3336 A
(kernel)252 3504 A
3798(*/)S
8418 V
EP
%%Page: 242 242
BP
/slant 0 def
/height 0 def
630 V
12 B
(242)180 648 A
11 R
2098(File:)S
2331(src/mm/exec.c)S
10 R
3402(MINIX)S
3730(SOURCE)S
4153(CODE)S
900 V
7 LST
(17440)210 648 A
990 V
(17441)210 648 A
1110(/*)S
(Zero)168 1236 A
(the)126 1446 A
(bss,)168 1614 A
(gap,)168 1824 A
(and)126 2034 A
(stack)210 2202 A
(segment.)336 2454 A
2832(*/)S
1080 V
(17442)210 648 A
(bytes)210 1110 A
1362(=)S
((phys_bytes)(data_clicks)1008 1446 A
2496(+)S
(gap_clicks)420 2580 A
3042(+)S
(stack_clicks))546 3126 A
3714(<<)S
(CLICK_SHIFT;)504 3840 A
1170 V
(17443)210 648 A
(base)168 1110 A
1320(=)S
((phys_bytes))504 1404 A
(rmp->mp_seg[D].mem_phys)966 1950 A
2958(<<)S
(CLICK_SHIFT;)504 3084 A
1260 V
(17444)210 648 A
(bss_offset)420 1110 A
1572(=)S
((data_bytes)462 1656 A
2160(>>)S
(CLICK_SHIFT))504 2286 A
2832(<<)S
(CLICK_SHIFT;)504 2958 A
1350 V
(17445)210 648 A
(base)168 1110 A
1320(+=)S
(bss_offset;)462 1446 A
1440 V
(17446)210 648 A
(bytes)210 1110 A
1362(-=)S
(bss_offset;)462 1488 A
1530 V
(17447)210 648 A
1620 V
(17448)210 648 A
(while)210 1110 A
((bytes)252 1362 A
1656(>)S
1740(0))S
1866({)S
1710 V
(17449)210 648 A
(count)210 1362 A
1614(=)S
(MIN(bytes,)420 1698 A
((phys_bytes))504 2160 A
(sizeof(zero));)588 2706 A
1800 V
(17450)210 648 A
1362(if)S
((sys_copy(MM_PROC_NR,)882 1488 A
2412(D,)S
((phys_bytes))504 2538 A
(zero,)210 3084 A
1890 V
(17451)210 648 A
(ABS,)168 3042 A
3252(0,)S
(base,)210 3378 A
(count))252 3630 A
3924(!=)S
(OK))126 4050 A
4218({)S
1980 V
(17452)210 648 A
(panic("new_mem)588 1698 A
(can't)210 2328 A
(zero",)252 2580 A
(NO_NUM);)336 2874 A
2070 V
(17453)210 648 A
1362(})S
2160 V
(17454)210 648 A
(base)168 1362 A
1572(+=)S
(count;)252 1698 A
2250 V
(17455)210 648 A
(bytes)210 1362 A
1614(-=)S
(count;)252 1740 A
2340 V
(17456)210 648 A
1110(})S
2430 V
(17457)210 648 A
2520 V
(17458)210 648 A
(return(OK);)462 1110 A
2610 V
(17459)210 648 A
1026(})S
2880 V
(17462)210 648 A
(/*===========================================================================*)3276 1026 A
2970 V
(17463)210 648 A
1068(*)S
(patch_ptr)378 2370 A
4260(*)S
3060 V
(17464)210 648 A
(*===========================================================================*/)3276 1068 A
3150 V
(17465)210 648 A
(PRIVATE)294 1026 A
(void)168 1362 A
(patch_ptr(stack,)672 1572 A
(base))210 2286 A
3240 V
(17466)210 648 A
(char)168 1026 A
(stack[ARG_MAX];)630 1236 A
2034(/*)S
(pointer)294 2160 A
2496(to)S
(stack)210 2622 A
(image)210 2874 A
(within)252 3126 A
3420(MM)S
3546(*/)S
3330 V
(17467)210 648 A
(vir_bytes)378 1026 A
(base;)210 1446 A
2370(/*)S
(virtual)294 2496 A
(address)294 2832 A
3168(of)S
(stack)210 3294 A
(base)168 3546 A
(inside)252 3756 A
(user)168 4050 A
4260(*/)S
3420 V
(17468)210 648 A
1026({)S
3510 V
(17469)210 648 A
1026(/*)S
(When)168 1152 A
(doing)210 1362 A
1614(an)S
(exec(name,)420 1740 A
(argv,)210 2202 A
(envp))210 2454 A
(call,)210 2706 A
(the)126 2958 A
(user)168 3126 A
(builds)252 3336 A
3630(up)S
3756(a)S
(stack)210 3840 A
3600 V
(17470)210 648 A
1068(*)S
(image)210 1152 A
(with)168 1404 A
(arg)126 1614 A
(and)126 1782 A
(env)126 1950 A
(pointers)336 2118 A
(relative)336 2496 A
2874(to)S
(the)126 3000 A
(start)210 3168 A
3420(of)S
(the)126 3546 A
(stack.)252 3714 A
(Now)126 4050 A
3690 V
(17471)210 648 A
1068(*)S
(these)210 1152 A
(pointers)336 1404 A
(must)168 1782 A
1992(be)S
(relocated,)420 2118 A
(since)210 2580 A
(the)126 2832 A
(stack)210 3000 A
3252(is)S
(not)126 3378 A
(positioned)420 3546 A
4008(at)S
3780 V
(17472)210 648 A
1068(*)S
(address)294 1152 A
1488(0)S
1572(in)S
(the)126 1698 A
(user's)252 1866 A
(address)294 2160 A
(space.)252 2496 A
3870 V
(17473)210 648 A
1068(*/)S
3960 V
(17474)210 648 A
4050 V
(17475)210 648 A
(char)168 1110 A
(**ap,)210 1320 A
(flag;)210 1572 A
4140 V
(17476)210 648 A
(vir_bytes)378 1110 A
1530(v;)S
4230 V
(17477)210 648 A
4320 V
(17478)210 648 A
(flag)168 1110 A
1320(=)S
1404(0;)S
2370(/*)S
(counts)252 2496 A
(number)252 2790 A
3084(of)S
(0-pointers)420 3210 A
(seen)168 3672 A
3882(*/)S
4410 V
(17479)210 648 A
1110(ap)S
1236(=)S
((char)210 1320 A
(**))126 1572 A
(stack;)252 1740 A
2370(/*)S
(points)252 2496 A
(initially)378 2790 A
3210(to)S
('nargs')294 3336 A
3672(*/)S
4500 V
(17480)210 648 A
(ap++;)210 1110 A
2370(/*)S
(now)126 2496 A
(points)252 2664 A
2958(to)S
(argv[0])294 3084 A
3420(*/)S
4590 V
(17481)210 648 A
(while)210 1110 A
((flag)210 1362 A
1614(<)S
1698(2))S
1824({)S
4680 V
(17482)210 648 A
1362(if)S
((ap)126 1488 A
1656(>=)S
((char)210 1782 A
(**))126 2034 A
(&stack[ARG_MAX]))672 2202 A
(return;)294 2916 A
3378(/*)S
(too)126 3504 A
(bad)126 3672 A
3840(*/)S
4770 V
(17483)210 648 A
1362(if)S
((*ap)168 1488 A
1698(!=)S
(NIL_PTR))336 1824 A
2202({)S
4860 V
(17484)210 648 A
1698(v)S
1782(=)S
((vir_bytes))462 1866 A
(*ap;)168 2370 A
2706(/*)S
2832(v)S
2916(is)S
(relative)336 3042 A
(pointer)294 3420 A
3756(*/)S
4950 V
(17485)210 648 A
1698(v)S
1782(+=)S
(base;)210 1908 A
2706(/*)S
(relocate)336 2832 A
3210(it)S
3336(*/)S
5040 V
(17486)210 648 A
(*ap)126 1698 A
1866(=)S
((char)210 1950 A
2202(*))S
2328(v;)S
2706(/*)S
(put)126 2832 A
3000(it)S
(back)168 3126 A
3336(*/)S
5130 V
(17487)210 648 A
1362(})S
(else)168 1446 A
1656({)S
5220 V
(17488)210 648 A
(flag++;)294 1698 A
5310 V
(17489)210 648 A
1362(})S
5400 V
(17490)210 648 A
(ap++;)210 1362 A
5490 V
(17491)210 648 A
1110(})S
5580 V
(17492)210 648 A
1026(})S
5850 V
(17495)210 648 A
(/*===========================================================================*)3276 1026 A
5940 V
(17496)210 648 A
1068(*)S
(load_seg)336 2370 A
4260(*)S
6030 V
(17497)210 648 A
(*===========================================================================*/)3276 1068 A
6120 V
(17498)210 648 A
(PRIVATE)294 1026 A
(void)168 1362 A
(load_seg(fd,)504 1572 A
(seg,)168 2118 A
(seg_bytes))420 2328 A
6210 V
(17499)210 648 A
(int)126 1026 A
(fd;)126 1194 A
2370(/*)S
(file)168 2496 A
(descriptor)420 2706 A
3168(to)S
(read)168 3294 A
(from)168 3504 A
3714(*/)S
8418 V
EP
%%Page: 243 243
BP
/slant 0 def
/height 0 def
630 V
10 R
648(MINIX)S
976(SOURCE)S
1399(CODE)S
11 R
2098(File:)S
2331(src/mm/exec.c)S
12 B
(243)180 4248 A
900 V
7 LST
(17500)210 648 A
(int)126 1026 A
(seg;)168 1194 A
2370(/*)S
2496(T)S
2580(or)S
2706(D)S
2790(*/)S
990 V
(17501)210 648 A
(vir_bytes)378 1026 A