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Fix problems with DW_LNS_pop_context in logicals table.

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2015-01-15  Cary Coutant  <ccoutant@google.com>

gas/
	* dwarf2dbg.c (emit_logicals): Fix bug in generating
	DW_LNS_pop_context.
	(process_entries): Don't always emit DW_LNS_set_address_from_logical
	when crossing frag boundaries.
This commit is contained in:
Cary Coutant
2015-01-15 13:48:31 -08:00
parent af9adba57a
commit ab071889a9
1 changed files with 13 additions and 12 deletions
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25
gas/dwarf2dbg.c
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@@ -1546,7 +1546,7 @@ emit_logicals (void)
if (context != e->context || subprog != e->subprog)
{
unsigned int caller = e->context;
unsigned int caller = context;
unsigned int npop = 0;
// See if a sequence of DW_LNS_pop_context ops will get
@@ -1554,7 +1554,7 @@ emit_logicals (void)
while (caller > 0 && caller <= logicals_in_use)
{
++npop;
if (logicals[caller - 1].subprog == subprog)
if (logicals[caller - 1].subprog == e->subprog)
break;
caller = logicals[caller - 1].context;
}
@@ -1757,17 +1757,18 @@ process_entries (segT seg, struct line_entry *e)
frag = symbol_get_frag (lab);
frag_ofs = S_GET_VALUE (lab);
if (logicals_in_use > 0
&& frag != last_frag
&& logicals[e->loc.logical - 1].label == lab)
if (last_frag == NULL)
{
out_set_addr_from_logical (line_delta);
out_opcode (DW_LNS_copy);
}
else if (last_frag == NULL)
{
out_set_addr (lab);
out_inc_line_addr (line_delta, 0);
if (logicals_in_use > 0 && logicals[e->loc.logical - 1].label == lab)
{
out_set_addr_from_logical (line_delta);
out_opcode (DW_LNS_copy);
}
else
{
out_set_addr (lab);
out_inc_line_addr (line_delta, 0);
}
}
else if (frag == last_frag && ! DWARF2_USE_FIXED_ADVANCE_PC)
out_inc_line_addr (line_delta, frag_ofs - last_frag_ofs);