STATUS: 40%
0000 T _signal compatible
0052 T _psignal compatible
00b6 T _issig compatible
0186 T _stop compatible
0216 T _psig not compatible
02d4 T _fsig not compatible
031e T _core not compatible
0512 T _grow not compatible
0640 T _ptrace not compatible
075c T _procxmt not compatible
This commit is contained in:
Oliver Lehmann
parent
c0523622e5
commit
f1ea519711
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@ -1,22 +1,42 @@
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#include "sys/param.h"
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#include "sys/systm.h"
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#include "sys/dir.h"
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#include "sys/user.h"
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#include "sys/proc.h"
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#include "sys/inode.h"
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#include "sys/reg.h"
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#include "sys/text.h"
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#include "sys/seg.h"
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#include "sys/var.h"
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#include "sys/mtpr.h"
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#include "sys/page.h"
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#include "sys/psl.h"
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/******************************************************************************
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*******************************************************************************
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W E G A - Quelle
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KERN 3.2 Modul: sig.c
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Bearbeiter: O. Lehmann
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Datum: 22.05.08
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Version: 1.0
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*******************************************************************************
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******************************************************************************/
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char sigwstr[] = "@[$]sig.c Rev: 4.2 09/29/83 09:47:41";
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#include <sys/param.h>
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#include <sys/sysinfo.h>
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#include <sys/systm.h>
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#include <sys/file.h>
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#include <sys/inode.h>
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#include <sys/dir.h>
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#include <sys/mmu.h>
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#include <sys/buf.h>
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#include <sys/conf.h>
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#include <sys/proc.h>
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#include <sys/s.out.h>
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#include <sys/user.h>
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#include <sys/text.h>
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#include <sys/state.h>
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/*
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* Priority for tracing
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*/
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#define IPCPRI PZERO
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extern int Nproc;
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extern int Maxmem;
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/*
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* Tracing variables.
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* Used to pass trace command from
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@ -47,7 +67,7 @@ register pgrp;
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if(pgrp == 0)
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return;
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for(p = &proc[1]; p < (struct proc *)v.ve_proc; p++)
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for(p = &proc[1]; p < &proc[Nproc]; p++)
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if(p->p_pgrp == pgrp)
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psignal(p, sig);
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}
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@ -94,7 +114,7 @@ issig()
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if (n == SIGCLD) {
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if (u.u_signal[SIGCLD-1]&01) {
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for (q = &proc[1];
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q < (struct proc *)v.ve_proc; q++) {
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q < &proc[Nproc]; q++) {
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if (p->p_pid == q->p_ppid &&
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q->p_stat == SZOMB)
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freeproc(q, 0) ;
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@ -123,7 +143,7 @@ stop()
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loop:
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cp = u.u_procp;
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if(cp->p_ppid != 1)
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for (pp = &proc[0]; pp < (struct proc *)v.ve_proc; pp++)
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for (pp = &proc[0]; pp < &proc[Nproc]; pp++)
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if (pp->p_pid == cp->p_ppid) {
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wakeup((caddr_t)pp);
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cp->p_stat = SSTOP;
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@ -170,7 +190,7 @@ psig()
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case SIGEMT:
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case SIGFPE:
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case SIGBUS:
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case SIGSEGV:
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case SIGSEG:
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case SIGSYS:
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if(core())
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n += 0200;
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@ -213,7 +233,7 @@ core()
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if (u.u_uid != u.u_ruid)
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return(0);
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u.u_error = 0;
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u.u_dirp = "core";
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u.u_dirp.l = "core";
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ip = namei(schar, 1);
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if(ip == NULL) {
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if(u.u_error)
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@ -225,16 +245,16 @@ core()
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if(!access(ip, IWRITE) && (ip->i_mode&IFMT) == IFREG) {
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itrunc(ip);
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u.u_offset = 0;
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u.u_base = (caddr_t)&u;
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u.u_base.l = (caddr_t)&u;
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u.u_count = ctob(USIZE);
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u.u_segflg = 1;
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u.u_limit = (daddr_t)ctod(MAXMEM);
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u.u_limit = (daddr_t)ctod(Maxmem);
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writei(ip);
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u.u_base = (char *)ctob(u.u_tsize);
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u.u_base.l = (char *)ctob(u.u_tsize);
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u.u_count = ctob(u.u_dsize);
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u.u_segflg = 0;
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writei(ip);
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u.u_base = (char *)(0x80000000 - ctob(u.u_ssize));
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u.u_base.l = (char *)(0x80000000 - ctob(u.u_ssize));
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u.u_count = ctob(u.u_ssize);
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writei(ip);
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} else
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@ -253,24 +273,27 @@ unsigned sp;
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{
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register si, i;
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register struct proc *p;
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register a;
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if(sp >= USRSTACK-ctob(u.u_ssize))
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if(sp >= UBASE-ctob(u.u_ssize))
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return(0);
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mtpr(TBIS, sp);
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mtpr(TBIS, ((int *)&u) + 128*USIZE - u.u_ssize - 1);
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si = btoc((USRSTACK-sp)) - u.u_ssize + SINCR;
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si = (UBASE-sp)/64 - u.u_ssize + SINCR;
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if(si <= 0)
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return(0);
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if(chksize(u.u_tsize, u.u_dsize, u.u_ssize+si))
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if(estabur(u.u_tsize, u.u_dsize, u.u_ssize+si, u.u_sep, RO))
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return(0);
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p = u.u_procp;
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expand(p->p_size+si);
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a = p->p_addr + p->p_size;
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for(i=u.u_ssize; i; i--) {
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a--;
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copyseg(a-si, a);
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}
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for(i=si; i; i--)
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clearseg(--a);
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u.u_ssize += si;
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expand(si, P1BR);
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for(i=si; --i>=0;)
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clearseg(((int *)&u)[128*USIZE - u.u_ssize + i] & PG_PFNUM);
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return(1);
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}
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/*
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* sys-trace system call.
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*/
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@ -289,7 +312,7 @@ ptrace()
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u.u_procp->p_flag |= STRC;
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return;
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}
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for (p=proc; p < (struct proc *)v.ve_proc; p++)
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for (p=proc; p < &proc[Nproc]; p++)
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if (p->p_stat==SSTOP
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&& p->p_pid==uap->pid
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&& p->p_ppid==u.u_procp->p_pid)
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@ -308,14 +331,16 @@ ptrace()
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setrun(p);
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while (ipc.ip_req > 0)
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sleep((caddr_t)&ipc, IPCPRI);
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u.u_rval1 = ipc.ip_data;
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u.u_r.r_val1 = ipc.ip_data;
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if (ipc.ip_req < 0)
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u.u_error = EIO;
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ipc.ip_lock = 0;
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wakeup((caddr_t)&ipc);
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}
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/*
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int ipcreg[] = {R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, AP, FP, SP, PC};
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*/
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/*
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* Code that the child process
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* executes to implement the command
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i = (int)ipc.ip_addr;
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p = (int *)&((physadr)&u)->r[i>>2];
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for (i=0; i<16; i++)
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if (p == &u.u_ar0[ipcreg[i]])
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if (p == &u.u_state->s_reg[i])
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goto ok;
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if (p == &u.u_ar0[PS]) {
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if (p == &u.u_state->s_ps) {
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ipc.ip_data |= 0x3c00000; /* modes == user */
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ipc.ip_data &= ~0x3c20ff00; /* IS, FPD, ... */
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goto ok;
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/* set signal and continue */
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/* one version causes a trace-trap */
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case 9:
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u.u_ar0[PS] |= PS_T;
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u.u_state->s_ps |= 0x10/*PS_T*/;
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case 7:
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if ((int)ipc.ip_addr != 1)
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u.u_ar0[PC] = (int)ipc.ip_addr;
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u.u_state->s_pc = (int)ipc.ip_addr;
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u.u_procp->p_sig = 0L;
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if (ipc.ip_data)
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psignal(u.u_procp, ipc.ip_data);
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