/* dwarf2dbg.c - DWARF2 debug support
- Copyright 1999-2013 Free Software Foundation, Inc.
+ Copyright (C) 1999-2016 Free Software Foundation, Inc.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of GAS, the GNU Assembler.
/* The maximum address skip amount that can be encoded with a special op. */
#define MAX_SPECIAL_ADDR_DELTA SPECIAL_ADDR(255)
+#ifndef TC_PARSE_CONS_RETURN_NONE
+#define TC_PARSE_CONS_RETURN_NONE BFD_RELOC_NONE
+#endif
+
struct line_entry {
struct line_entry *next;
symbolS *label;
/* Collects data for all line table entries during assembly. */
static struct line_seg *all_segs;
-/* Hash used to quickly lookup a segment by name, avoiding the need to search
- through the all_segs list. */
-static struct hash_control *all_segs_hash;
static struct line_seg **last_seg_ptr;
struct file_entry {
static struct line_subseg *
get_line_subseg (segT seg, subsegT subseg, bfd_boolean create_p)
{
- static segT last_seg;
- static subsegT last_subseg;
- static struct line_subseg *last_line_subseg;
-
- struct line_seg *s;
+ struct line_seg *s = seg_info (seg)->dwarf2_line_seg;
struct line_subseg **pss, *lss;
- if (seg == last_seg && subseg == last_subseg)
- return last_line_subseg;
-
- s = (struct line_seg *) hash_find (all_segs_hash, seg->name);
if (s == NULL)
{
if (!create_p)
return NULL;
- s = (struct line_seg *) xmalloc (sizeof (*s));
+ s = XNEW (struct line_seg);
s->next = NULL;
s->seg = seg;
s->head = NULL;
*last_seg_ptr = s;
last_seg_ptr = &s->next;
- hash_insert (all_segs_hash, seg->name, s);
+ seg_info (seg)->dwarf2_line_seg = s;
}
gas_assert (seg == s->seg);
break;
}
- lss = (struct line_subseg *) xmalloc (sizeof (*lss));
+ lss = XNEW (struct line_subseg);
lss->next = *pss;
lss->subseg = subseg;
lss->head = NULL;
*pss = lss;
found_subseg:
- last_seg = seg;
- last_subseg = subseg;
- last_line_subseg = lss;
-
return lss;
}
struct line_subseg *lss;
struct line_entry *e;
- e = (struct line_entry *) xmalloc (sizeof (*e));
+ e = XNEW (struct line_entry);
e->next = NULL;
e->label = label;
e->loc = *loc;
{
if (debug_type == DEBUG_DWARF2)
{
- char *filename;
- as_where (&filename, &line->line);
+ const char *filename = as_where (&line->line);
line->filenum = get_filenum (filename, 0);
line->column = 0;
line->flags = DWARF2_FLAG_IS_STMT;
if (dir >= dirs_allocated)
{
dirs_allocated = dir + 32;
- dirs = (char **)
- xrealloc (dirs, (dir + 32) * sizeof (const char *));
+ dirs = XRESIZEVEC (char *, dirs, dirs_allocated);
}
- dirs[dir] = (char *) xmalloc (dir_len + 1);
- memcpy (dirs[dir], filename, dir_len);
- dirs[dir][dir_len] = '\0';
+ dirs[dir] = xmemdup0 (filename, dir_len);
dirs_in_use = dir + 1;
}
}
unsigned int old = files_allocated;
files_allocated = i + 32;
- files = (struct file_entry *)
- xrealloc (files, (i + 32) * sizeof (struct file_entry));
+ files = XRESIZEVEC (struct file_entry, files, files_allocated);
memset (files + old, 0, (i + 32 - old) * sizeof (struct file_entry));
}
{
size_t dir_len = strlen (dirs[files[filenum].dir]);
size_t file_len = strlen (files[filenum].filename);
- char *cp = (char *) alloca (dir_len + 1 + file_len + 1);
+ char *cp = XNEWVEC (char, dir_len + 1 + file_len + 1);
memcpy (cp, dirs[files[filenum].dir], dir_len);
INSERT_DIR_SEPARATOR (cp, dir_len);
memcpy (cp + dir_len + 1, files[filenum].filename, file_len);
cp[dir_len + file_len + 1] = '\0';
listing_source_file (cp);
+ free (cp);
}
else
listing_source_file (files[filenum].filename);
char *p, c;
offsetT value;
- p = input_line_pointer;
- c = get_symbol_end ();
+ c = get_symbol_name (& p);
if (strcmp (p, "basic_block") == 0)
{
}
else if (strcmp (p, "is_stmt") == 0)
{
- *input_line_pointer = c;
+ (void) restore_line_pointer (c);
value = get_absolute_expression ();
if (value == 0)
current.flags &= ~DWARF2_FLAG_IS_STMT;
}
else if (strcmp (p, "isa") == 0)
{
- *input_line_pointer = c;
+ (void) restore_line_pointer (c);
value = get_absolute_expression ();
if (value >= 0)
current.isa = value;
}
else if (strcmp (p, "discriminator") == 0)
{
- *input_line_pointer = c;
+ (void) restore_line_pointer (c);
value = get_absolute_expression ();
if (value >= 0)
current.discriminator = value;
else
{
as_bad (_("unknown .loc sub-directive `%s'"), p);
- *input_line_pointer = c;
+ (void) restore_line_pointer (c);
return;
}
- SKIP_WHITESPACE ();
+ SKIP_WHITESPACE_AFTER_NAME ();
}
demand_empty_rest_of_line ();
exp.X_op = O_symbol;
exp.X_add_symbol = to_sym;
exp.X_add_number = 0;
- emit_expr_fix (&exp, sizeof_address, frag, p);
+ emit_expr_fix (&exp, sizeof_address, frag, p, TC_PARSE_CONS_RETURN_NONE);
p += sizeof_address;
}
else
{
*p++ = DW_LNS_fixed_advance_pc;
- emit_expr_fix (pexp, 2, frag, p);
+ emit_expr_fix (pexp, 2, frag, p, TC_PARSE_CONS_RETURN_NONE);
p += 2;
}
section, as well as our sub-sections, and we have to ensure
that all of the sub-sections are merged into a proper
.debug_line section before a debugger sees them. */
-
+
sec_name = bfd_get_section_name (stdoutput, seg);
if (strcmp (sec_name, ".text") != 0)
{
- unsigned int len;
-
- len = strlen (sec_name);
- name = xmalloc (len + 11 + 2);
- sprintf (name, ".debug_line%s", sec_name);
+ name = concat (".debug_line", sec_name, (char *) NULL);
subseg_set (subseg_get (name, FALSE), 0);
}
else
/* Switch to SEC and output a header length field. Return the size of
offsets used in SEC. The caller must set EXPR->X_add_symbol value
- to the end of the section. */
+ to the end of the section. EXPR->X_add_number will be set to the
+ negative size of the header. */
static int
out_header (asection *sec, expressionS *exp)
symbolS *end_sym;
subseg_set (sec, 0);
- start_sym = symbol_temp_new_now ();
- end_sym = symbol_temp_make ();
+
+ if (flag_dwarf_sections)
+ {
+ /* If we are going to put the start and end symbols in different
+ sections, then we need real symbols, not just fake, local ones. */
+ frag_now_fix ();
+ start_sym = symbol_make (".Ldebug_line_start");
+ end_sym = symbol_make (".Ldebug_line_end");
+ symbol_set_value_now (start_sym);
+ }
+ else
+ {
+ start_sym = symbol_temp_new_now ();
+ end_sym = symbol_temp_make ();
+ }
/* Total length of the information. */
exp->X_op = O_subtract;
out_debug_aranges (segT aranges_seg, segT info_seg)
{
unsigned int addr_size = sizeof_address;
+ offsetT size;
struct line_seg *s;
expressionS exp;
symbolS *aranges_end;
sizeof_offset = out_header (aranges_seg, &exp);
aranges_end = exp.X_add_symbol;
+ size = -exp.X_add_number;
/* Version. */
out_two (DWARF2_ARANGES_VERSION);
+ size += 2;
/* Offset to .debug_info. */
TC_DWARF2_EMIT_OFFSET (section_symbol (info_seg), sizeof_offset);
+ size += sizeof_offset;
/* Size of an address (offset portion). */
out_byte (addr_size);
+ size++;
/* Size of a segment descriptor. */
out_byte (0);
+ size++;
/* Align the header. */
- frag_align (ffs (2 * addr_size) - 1, 0, 0);
+ while ((size++ % (2 * addr_size)) > 0)
+ out_byte (0);
for (s = all_segs; s; s = s->next)
{
void
dwarf2_init (void)
{
- all_segs_hash = hash_new ();
last_seg_ptr = &all_segs;
}
projects / deliverable / binutils-gdb.git / blobdiff