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(common_init): Drop initialization of c->rbs_right_edge.

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Initialize size of first rbs_area[] to 1<<63 so that we can maintain
	a notion of "above" and "below".

(Logical change 1.52)
This commit is contained in:
mostang.com!davidm 2003-02-21 07:36:26 +00:00
parent 77821808ab
commit 8a621f78ff
1 changed files with 7 additions and 2 deletions
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9
src/ia64/init.h
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@ -94,9 +94,14 @@ common_init (struct cursor *c)
if (ret < 0)
return ret;
c->rbs_curr = c->rbs_left_edge = c->rbs_right_edge = 0;
c->rbs_curr = c->rbs_left_edge = 0;
/* There is no way to know the real size of the most recent
(right-most) RBS so we'll just assume it to occupy half the
address space. That allows us to have a notion of "above" and
"below" even with the wrap-around nature of addressing. */
c->rbs_area[0].end = bspstore;
c->rbs_area[0].size = ~(unw_word_t) 0; /* initial guess... */
c->rbs_area[0].size = ((unw_word_t) 1) << 63; /* initial guess... */
c->rbs_area[0].rnat_loc = IA64_REG_LOC (c, UNW_IA64_AR_RNAT);
debug (10, "%s: initial rbs-area: [?-0x%lx), rnat@0x%lx\n", __FUNCTION__,
(long) c->rbs_area[0].end, (long) c->rbs_area[0].rnat_loc);