with the Ada Joint Program Office), and Silicon Graphics, Inc.
Initial contribution by Brent Benson, Harris Computer Systems, Inc.,
based on Fred Fish's (Cygnus Support) implementation of DWARF 1
- support in dwarfread.c
+ support.
This file is part of GDB.
can be used for any other data associated to the objfile (symbol
names, type names, location expressions to name a few). */
-#ifndef DWARF2_REG_TO_REGNUM
-#define DWARF2_REG_TO_REGNUM(REG) (REG)
-#endif
-
#if 0
/* .debug_info header for a compilation unit
Because of alignment constraints, this structure has padding and cannot
_("statement list doesn't fit in .debug_line section"));
}
+static void
+dwarf2_debug_line_missing_file_complaint (void)
+{
+ complaint (&symfile_complaints,
+ _(".debug_line section has line data without a file"));
+}
+
static void
dwarf2_complex_location_expr_complaint (void)
{
static int attr_form_is_block (struct attribute *);
-static void
-dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym,
- struct dwarf2_cu *cu);
+static void dwarf2_symbol_mark_computed (struct attribute *attr,
+ struct symbol *sym,
+ struct dwarf2_cu *cu);
static gdb_byte *skip_one_die (gdb_byte *info_ptr, struct abbrev_info *abbrev,
struct dwarf2_cu *cu);
CORE_ADDR lowpc = ((CORE_ADDR) -1);
CORE_ADDR highpc = ((CORE_ADDR) 0);
struct attribute *attr;
- char *name = "<unknown>";
+ char *name = NULL;
char *comp_dir = NULL;
struct die_info *child_die;
bfd *abfd = objfile->obfd;
{
name = DW_STRING (attr);
}
+
attr = dwarf2_attr (die, DW_AT_comp_dir, cu);
if (attr)
+ comp_dir = DW_STRING (attr);
+ else if (name != NULL && IS_ABSOLUTE_PATH (name))
{
- comp_dir = DW_STRING (attr);
- if (comp_dir)
- {
- /* Irix 6.2 native cc prepends <machine>.: to the compilation
- directory, get rid of it. */
- char *cp = strchr (comp_dir, ':');
+ comp_dir = ldirname (name);
+ if (comp_dir != NULL)
+ make_cleanup (xfree, comp_dir);
+ }
+ if (comp_dir != NULL)
+ {
+ /* Irix 6.2 native cc prepends <machine>.: to the compilation
+ directory, get rid of it. */
+ char *cp = strchr (comp_dir, ':');
- if (cp && cp != comp_dir && cp[-1] == '.' && cp[1] == '/')
- comp_dir = cp + 1;
- }
+ if (cp && cp != comp_dir && cp[-1] == '.' && cp[1] == '/')
+ comp_dir = cp + 1;
}
+ if (name == NULL)
+ name = "<unknown>";
+
attr = dwarf2_attr (die, DW_AT_language, cu);
if (attr)
{
TYPE_LENGTH (type) = 0;
}
+ TYPE_FLAGS (type) |= TYPE_FLAG_STUB_SUPPORTED;
if (die_is_declaration (die, cu))
TYPE_FLAGS (type) |= TYPE_FLAG_STUB;
length accordingly. */
if (TYPE_LENGTH (type) != byte_size || addr_class != DW_ADDR_none)
{
- if (ADDRESS_CLASS_TYPE_FLAGS_P ())
+ if (gdbarch_address_class_type_flags_p (current_gdbarch))
{
int type_flags;
- type_flags = ADDRESS_CLASS_TYPE_FLAGS (byte_size, addr_class);
+ type_flags = gdbarch_address_class_type_flags
+ (current_gdbarch, byte_size, addr_class);
gdb_assert ((type_flags & ~TYPE_FLAG_ADDRESS_CLASS_ALL) == 0);
type = make_type_with_address_space (type, type_flags);
}
return;
base_type = die_type (die, cu);
- if (base_type == NULL)
+ if (TYPE_CODE (base_type) == TYPE_CODE_VOID)
{
complaint (&symfile_complaints,
_("DW_AT_type missing from DW_TAG_subrange_type"));
- return;
+ base_type
+ = dwarf_base_type (DW_ATE_signed,
+ gdbarch_addr_bit (current_gdbarch) / 8, cu);
}
- if (TYPE_CODE (base_type) == TYPE_CODE_VOID)
- base_type = alloc_type (NULL);
-
if (cu->language == language_fortran)
{
/* FORTRAN implies a lower bound of 1, if not given. */
case DW_LANG_Modula2:
cu->language = language_m2;
break;
+ case DW_LANG_Pascal83:
+ cu->language = language_pascal;
+ break;
case DW_LANG_Cobol74:
case DW_LANG_Cobol85:
- case DW_LANG_Pascal83:
default:
cu->language = language_minimal;
break;
address += (adj_opcode / lh->line_range)
* lh->minimum_instruction_length;
line += lh->line_base + (adj_opcode % lh->line_range);
- lh->file_names[file - 1].included_p = 1;
- if (!decode_for_pst_p)
- {
- if (last_subfile != current_subfile)
- {
- if (last_subfile)
- record_line (last_subfile, 0, address);
- last_subfile = current_subfile;
+ if (lh->num_file_names < file)
+ dwarf2_debug_line_missing_file_complaint ();
+ else
+ {
+ lh->file_names[file - 1].included_p = 1;
+ if (!decode_for_pst_p)
+ {
+ if (last_subfile != current_subfile)
+ {
+ if (last_subfile)
+ record_line (last_subfile, 0, address);
+ last_subfile = current_subfile;
+ }
+ /* Append row to matrix using current values. */
+ record_line (current_subfile, line,
+ check_cu_functions (address, cu));
}
- /* Append row to matrix using current values. */
- record_line (current_subfile, line,
- check_cu_functions (address, cu));
- }
+ }
basic_block = 1;
}
else switch (op_code)
{
case DW_LNE_end_sequence:
end_sequence = 1;
- lh->file_names[file - 1].included_p = 1;
- if (!decode_for_pst_p)
- record_line (current_subfile, 0, address);
+
+ if (lh->num_file_names < file)
+ dwarf2_debug_line_missing_file_complaint ();
+ else
+ {
+ lh->file_names[file - 1].included_p = 1;
+ if (!decode_for_pst_p)
+ record_line (current_subfile, 0, address);
+ }
break;
case DW_LNE_set_address:
address = read_address (abfd, line_ptr, cu, &bytes_read);
}
break;
case DW_LNS_copy:
- lh->file_names[file - 1].included_p = 1;
- if (!decode_for_pst_p)
+ if (lh->num_file_names < file)
+ dwarf2_debug_line_missing_file_complaint ();
+ else
{
- if (last_subfile != current_subfile)
- {
- if (last_subfile)
- record_line (last_subfile, 0, address);
- last_subfile = current_subfile;
- }
- record_line (current_subfile, line,
- check_cu_functions (address, cu));
+ lh->file_names[file - 1].included_p = 1;
+ if (!decode_for_pst_p)
+ {
+ if (last_subfile != current_subfile)
+ {
+ if (last_subfile)
+ record_line (last_subfile, 0, address);
+ last_subfile = current_subfile;
+ }
+ record_line (current_subfile, line,
+ check_cu_functions (address, cu));
+ }
}
basic_block = 0;
break;
file = read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
line_ptr += bytes_read;
- fe = &lh->file_names[file - 1];
- if (fe->dir_index)
- dir = lh->include_dirs[fe->dir_index - 1];
-
- if (!decode_for_pst_p)
- {
- last_subfile = current_subfile;
- dwarf2_start_subfile (fe->name, dir, comp_dir);
- }
+ if (lh->num_file_names < file)
+ dwarf2_debug_line_missing_file_complaint ();
+ else
+ {
+ fe = &lh->file_names[file - 1];
+ if (fe->dir_index)
+ dir = lh->include_dirs[fe->dir_index - 1];
+ if (!decode_for_pst_p)
+ {
+ last_subfile = current_subfile;
+ dwarf2_start_subfile (fe->name, dir, comp_dir);
+ }
+ }
}
break;
case DW_LNS_set_column:
|| file_index > cu->line_header->num_file_names)
complaint (&symfile_complaints,
_("file index out of range"));
- else
+ else if (file_index > 0)
{
struct file_entry *fe;
fe = &cu->line_header->file_names[file_index - 1];
with missing type entries. Change the misleading `void' type
to something sensible. */
if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_VOID)
- SYMBOL_TYPE (sym) = init_type (TYPE_CODE_INT,
- TARGET_INT_BIT / HOST_CHAR_BIT, 0,
- "<variable, no debug info>",
- objfile);
+ SYMBOL_TYPE (sym)
+ = builtin_type (current_gdbarch)->nodebug_data_symbol;
+
attr = dwarf2_attr (die, DW_AT_const_value, cu);
if (attr)
{
return "DW_OP_bit_piece";
case DW_OP_GNU_push_tls_address:
return "DW_OP_GNU_push_tls_address";
+ case DW_OP_GNU_uninit:
+ return "DW_OP_GNU_uninit";
/* HP extensions. */
case DW_OP_HP_is_value:
return "DW_OP_HP_is_value";
dwarf2_complex_location_expr_complaint ();
break;
+ case DW_OP_GNU_uninit:
+ break;
+
default:
complaint (&symfile_complaints, _("unsupported stack op: '%s'"),
dwarf_stack_op_name (op));
dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym,
struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
+
+ /* Save the master objfile, so that we can report and look up the
+ correct file containing this variable. */
+ if (objfile->separate_debug_objfile_backlink)
+ objfile = objfile->separate_debug_objfile_backlink;
+
if ((attr->form == DW_FORM_data4 || attr->form == DW_FORM_data8)
/* ".debug_loc" may not exist at all, or the offset may be outside
the section. If so, fall through to the complaint in the
baton = obstack_alloc (&cu->objfile->objfile_obstack,
sizeof (struct dwarf2_loclist_baton));
- baton->objfile = cu->objfile;
+ baton->objfile = objfile;
/* We don't know how long the location list is, but make sure we
don't run off the edge of the section. */
baton = obstack_alloc (&cu->objfile->objfile_obstack,
sizeof (struct dwarf2_locexpr_baton));
- baton->objfile = cu->objfile;
+ baton->objfile = objfile;
if (attr_form_is_block (attr))
{
projects / deliverable / binutils-gdb.git / blobdiff