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* td_ta_event_getmsg.c (td_ta_event_getmsg): Write the NEXT pointer

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into the inferior's __pthread_last_event variable, not a word from
	an inferior address used in the parent.  Pass the address of a
	null word to ps_pdwrite, not a null pointer.
This commit is contained in:
Roland McGrath
2002-12-09 10:49:37 +00:00
parent 57b4cb2522
commit 58a851f108
2 changed files with 12 additions and 4 deletions
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9
nptl_db/td_ta_event_getmsg.c
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@@ -43,11 +43,11 @@ td_ta_event_getmsg (const td_thragent_t *ta, td_event_msg_t *msg)
&addr, sizeof (struct pthread *)) != PS_OK)
return TD_ERR; /* XXX Other error value? */
/* Read the even structure from the target. */
if (addr == 0)
/* Nothing waiting. */
return TD_NOMSG;
/* Read the even structure from the target. */
/* Read the event structure from the target. */
td_eventbuf_t event;
if (ps_pdread (ta->ph, (char *) addr + offsetof (struct pthread, eventbuf),
&event, sizeof (td_eventbuf_t)) != PS_OK)
@@ -73,12 +73,13 @@ td_ta_event_getmsg (const td_thragent_t *ta, td_event_msg_t *msg)
/* Store the pointer in the list head variable. */
if (ps_pdwrite (ta->ph, ta->pthread_last_event,
addr, sizeof (struct pthread *)) != PS_OK)
&next, sizeof (struct pthread *)) != PS_OK)
return TD_ERR; /* XXX Other error value? */
/* Clear the next pointer in the current descriptor. */
next = NULL;
if (ps_pdwrite (ta->ph, (char *) addr + offsetof (struct pthread, nextevent),
NULL, sizeof (struct pthread *)) != PS_OK)
&next, sizeof (struct pthread *)) != PS_OK)
return TD_ERR; /* XXX Other error value? */
return TD_OK;