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Fixed do_trace to properly return (status) information.

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This commit is contained in:
Philip Homburg 2005-07-25 12:15:05 +00:00
parent 06c8f33853
commit 153fdabb26
1 changed files with 8 additions and 6 deletions
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14
kernel/system/do_trace.c
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@ -60,6 +60,7 @@ register message *m_ptr;
if (rp->p_memmap[T].mem_len != 0) {
if ((src = umap_local(rp, T, tr_addr, TR_VLSIZE)) == 0) return(EIO);
phys_copy(src, vir2phys(&tr_data), (phys_bytes) sizeof(long));
m_ptr->CTL_DATA= tr_data;
break;
}
/* Text space is actually data space - fall through. */
@ -67,20 +68,21 @@ register message *m_ptr;
case T_GETDATA: /* return value from data space */
if ((src = umap_local(rp, D, tr_addr, TR_VLSIZE)) == 0) return(EIO);
phys_copy(src, vir2phys(&tr_data), (phys_bytes) sizeof(long));
m_ptr->CTL_DATA= tr_data;
break;
case T_GETUSER: /* return value from process table */
if ((tr_addr & (sizeof(long) - 1)) != 0 ||
tr_addr > sizeof(struct proc) - sizeof(long))
return(EIO);
tr_data = *(long *) ((char *) rp + (int) tr_addr);
m_ptr->CTL_DATA = *(long *) ((char *) rp + (int) tr_addr);
break;
case T_SETINS: /* set value in instruction space */
if (rp->p_memmap[T].mem_len != 0) {
if ((dst = umap_local(rp, T, tr_addr, TR_VLSIZE)) == 0) return(EIO);
phys_copy(vir2phys(&tr_data), dst, (phys_bytes) sizeof(long));
tr_data = 0;
m_ptr->CTL_DATA = 0;
break;
}
/* Text space is actually data space - fall through. */
@ -88,7 +90,7 @@ register message *m_ptr;
case T_SETDATA: /* set value in data space */
if ((dst = umap_local(rp, D, tr_addr, TR_VLSIZE)) == 0) return(EIO);
phys_copy(vir2phys(&tr_data), dst, (phys_bytes) sizeof(long));
tr_data = 0;
m_ptr->CTL_DATA = 0;
break;
case T_SETUSER: /* set value in process table */
@ -116,20 +118,20 @@ register message *m_ptr;
SETPSW(rp, tr_data);
else
*(reg_t *) ((char *) &rp->p_reg + i) = (reg_t) tr_data;
tr_data = 0;
m_ptr->CTL_DATA = 0;
break;
case T_RESUME: /* resume execution */
rp->p_rts_flags &= ~P_STOP;
if (rp->p_rts_flags == 0) lock_ready(rp);
tr_data = 0;
m_ptr->CTL_DATA = 0;
break;
case T_STEP: /* set trace bit */
rp->p_reg.psw |= TRACEBIT;
rp->p_rts_flags &= ~P_STOP;
if (rp->p_rts_flags == 0) lock_ready(rp);
tr_data = 0;
m_ptr->CTL_DATA = 0;
break;
default: