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Revert:

	2011-09-05  Richard Sandiford  <rdsandiford@googlemail.com>

	PR gas/13024
	* dwarf2dbg.c (pending_lines, pending_lines_tail): New variables.
	(dwarf2_gen_line_info_1): Delete.
	(dwarf2_push_line, dwarf2_flush_pending_lines): New functions.
	(dwarf2_gen_line_info, dwarf2_emit_label): Use them.
	(dwarf2_consume_line_info): Call dwarf2_flush_pending_lines.
	(dwarf2_directive_loc): Push previous .locs instead of generating
	them immediately.
This commit is contained in:
Richard Sandiford 2013-06-14 13:24:41 +00:00
parent 1a39a68ee7
commit 6a50d470b7
2 changed files with 29 additions and 47 deletions
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15
gas/ChangeLog
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@ -1,3 +1,18 @@
2013-06-14 Richard Sandiford <rsandifo@linux.vnet.ibm.com>
Revert:
2011-09-05 Richard Sandiford <rdsandiford@googlemail.com>
PR gas/13024
* dwarf2dbg.c (pending_lines, pending_lines_tail): New variables.
(dwarf2_gen_line_info_1): Delete.
(dwarf2_push_line, dwarf2_flush_pending_lines): New functions.
(dwarf2_gen_line_info, dwarf2_emit_label): Use them.
(dwarf2_consume_line_info): Call dwarf2_flush_pending_lines.
(dwarf2_directive_loc): Push previous .locs instead of generating
them immediately.
2013-06-13 Chao-ying Fu <Chao-ying.Fu@imgtec.com>
* config/tc-mips.c (ISA_SUPPORTS_VIRT_ASE): Support micromips.

61
gas/dwarf2dbg.c
View File

@ -216,10 +216,6 @@ static struct dwarf2_line_info current = {
0
};
/* Lines that are at the same location as CURRENT, and which are waiting
for a label. */
static struct line_entry *pending_lines, **pending_lines_tail = &pending_lines;
/* The size of an address on the target. */
static unsigned int sizeof_address;
@ -293,47 +289,22 @@ get_line_subseg (segT seg, subsegT subseg)
return lss;
}
/* Push LOC onto the pending lines list. */
/* Record an entry for LOC occurring at LABEL. */
static void
dwarf2_push_line (struct dwarf2_line_info *loc)
dwarf2_gen_line_info_1 (symbolS *label, struct dwarf2_line_info *loc)
{
struct line_subseg *lss;
struct line_entry *e;
e = (struct line_entry *) xmalloc (sizeof (*e));
e->next = NULL;
e->label = NULL;
e->label = label;
e->loc = *loc;
*pending_lines_tail = e;
pending_lines_tail = &(*pending_lines_tail)->next;
}
/* Emit all pending line information. LABEL is the label with which the
lines should be associated, or null if they should be associated with
the current position. */
static void
dwarf2_flush_pending_lines (symbolS *label)
{
if (pending_lines)
{
struct line_subseg *lss;
struct line_entry *e;
if (!label)
label = symbol_temp_new_now ();
for (e = pending_lines; e; e = e->next)
e->label = label;
lss = get_line_subseg (now_seg, now_subseg);
*lss->ptail = pending_lines;
lss->ptail = pending_lines_tail;
pending_lines = NULL;
pending_lines_tail = &pending_lines;
}
lss = get_line_subseg (now_seg, now_subseg);
*lss->ptail = e;
lss->ptail = &e->next;
}
/* Record an entry for LOC occurring at OFS within the current fragment. */
@ -344,6 +315,8 @@ dwarf2_gen_line_info (addressT ofs, struct dwarf2_line_info *loc)
static unsigned int line = -1;
static unsigned int filenum = -1;
symbolS *sym;
/* Early out for as-yet incomplete location information. */
if (loc->filenum == 0 || loc->line == 0)
return;
@ -359,7 +332,6 @@ dwarf2_gen_line_info (addressT ofs, struct dwarf2_line_info *loc)
line = loc->line;
filenum = loc->filenum;
dwarf2_push_line (loc);
if (linkrelax)
{
char name[120];
@ -367,10 +339,11 @@ dwarf2_gen_line_info (addressT ofs, struct dwarf2_line_info *loc)
/* Use a non-fake name for the line number location,
so that it can be referred to by relocations. */
sprintf (name, ".Loc.%u.%u", line, filenum);
dwarf2_flush_pending_lines (symbol_new (name, now_seg, ofs, frag_now));
sym = symbol_new (name, now_seg, ofs, frag_now);
}
else
dwarf2_flush_pending_lines (symbol_temp_new (now_seg, ofs, frag_now));
sym = symbol_temp_new (now_seg, ofs, frag_now);
dwarf2_gen_line_info_1 (sym, loc);
}
/* Returns the current source information. If .file directives have
@ -431,11 +404,6 @@ dwarf2_emit_insn (int size)
void
dwarf2_consume_line_info (void)
{
/* If the consumer has stashed the current location away for later use,
assume that any earlier location information should be associated
with ".". */
dwarf2_flush_pending_lines (NULL);
/* Unless we generate DWARF2 debugging information for each
assembler line, we only emit one line symbol for one LOC. */
dwarf2_loc_directive_seen = FALSE;
@ -467,8 +435,7 @@ dwarf2_emit_label (symbolS *label)
loc.flags |= DWARF2_FLAG_BASIC_BLOCK;
dwarf2_push_line (&loc);
dwarf2_flush_pending_lines (label);
dwarf2_gen_line_info_1 (label, &loc);
dwarf2_consume_line_info ();
}
@ -628,7 +595,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
/* If we see two .loc directives in a row, force the first one to be
output now. */
if (dwarf2_loc_directive_seen)
dwarf2_push_line (&current);
dwarf2_emit_insn (0);
filenum = get_absolute_expression ();
SKIP_WHITESPACE ();