/* When == 1, print basic high level tracing messages.
When > 1, be more verbose.
- This is in contrast to the low level DIE reading of dwarf2_die_debug. */
-static unsigned int dwarf2_read_debug = 0;
+ This is in contrast to the low level DIE reading of dwarf_die_debug. */
+static unsigned int dwarf_read_debug = 0;
/* When non-zero, dump DIEs after they are read in. */
-static unsigned int dwarf2_die_debug = 0;
+static unsigned int dwarf_die_debug = 0;
+
+/* When non-zero, dump line number entries as they are read in. */
+static unsigned int dwarf_line_debug = 0;
/* When non-zero, cross-check physname against demangler. */
static int check_physname = 0;
typedef struct dwarf2_per_cu_data *dwarf2_per_cu_ptr;
DEF_VEC_P (dwarf2_per_cu_ptr);
+struct tu_stats
+{
+ int nr_uniq_abbrev_tables;
+ int nr_symtabs;
+ int nr_symtab_sharers;
+ int nr_stmt_less_type_units;
+ int nr_all_type_units_reallocs;
+};
+
/* Collection of data recorded per objfile.
This hangs off of dwarf2_objfile_data_key. */
/* Type unit statistics, to see how well the scaling improvements
are doing. */
- struct tu_stats
- {
- int nr_uniq_abbrev_tables;
- int nr_symtabs;
- int nr_symtab_sharers;
- int nr_stmt_less_type_units;
- int nr_all_type_units_reallocs;
- } tu_stats;
+ struct tu_stats tu_stats;
/* A chain of compilation units that are currently read in, so that
they can be freed later. */
int has_children,
void *data);
+struct file_entry
+{
+ const char *name;
+ unsigned int dir_index;
+ unsigned int mod_time;
+ unsigned int length;
+ /* Non-zero if referenced by the Line Number Program. */
+ int included_p;
+ /* The associated symbol table, if any. */
+ struct symtab *symtab;
+};
+
/* The line number information for a compilation unit (found in the
.debug_line section) begins with a "statement program header",
which contains the following information. */
with xmalloc; instead, they are pointers into debug_line_buffer.
Don't try to free them directly. */
unsigned int num_file_names, file_names_size;
- struct file_entry
- {
- const char *name;
- unsigned int dir_index;
- unsigned int mod_time;
- unsigned int length;
- int included_p; /* Non-zero if referenced by the Line Number Program. */
- struct symtab *symtab; /* The associated symbol table, if any. */
- } *file_names;
+ struct file_entry *file_names;
/* The start and end of the statement program following this
header. These point into dwarf2_per_objfile->line_buffer. */
/* Flag set if the DIE has a byte_size attribute. */
unsigned int has_byte_size : 1;
+ /* Flag set if the DIE has a DW_AT_const_value attribute. */
+ unsigned int has_const_value : 1;
+
/* Flag set if any of the DIE's children are template arguments. */
unsigned int has_template_arguments : 1;
and friends. */
static int bits_per_byte = 8;
+struct nextfield
+{
+ struct nextfield *next;
+ int accessibility;
+ int virtuality;
+ struct field field;
+};
+
+struct nextfnfield
+{
+ struct nextfnfield *next;
+ struct fn_field fnfield;
+};
+
+struct fnfieldlist
+{
+ const char *name;
+ int length;
+ struct nextfnfield *head;
+};
+
+struct typedef_field_list
+{
+ struct typedef_field field;
+ struct typedef_field_list *next;
+};
+
/* The routines that read and process dies for a C struct or C++ class
pass lists of data member fields and lists of member function fields
in an instance of a field_info structure, as defined below. */
struct field_info
{
/* List of data member and baseclasses fields. */
- struct nextfield
- {
- struct nextfield *next;
- int accessibility;
- int virtuality;
- struct field field;
- }
- *fields, *baseclasses;
+ struct nextfield *fields, *baseclasses;
/* Number of fields (including baseclasses). */
int nfields;
/* Member function fields array, entries are allocated in the order they
are encountered in the object file. */
- struct nextfnfield
- {
- struct nextfnfield *next;
- struct fn_field fnfield;
- }
- *fnfields;
+ struct nextfnfield *fnfields;
/* Member function fieldlist array, contains name of possibly overloaded
member function, number of overloaded member functions and a pointer
to the head of the member function field chain. */
- struct fnfieldlist
- {
- const char *name;
- int length;
- struct nextfnfield *head;
- }
- *fnfieldlists;
+ struct fnfieldlist *fnfieldlists;
/* Number of entries in the fnfieldlists array. */
int nfnfields;
/* typedefs defined inside this class. TYPEDEF_FIELD_LIST contains head of
a NULL terminated list of TYPEDEF_FIELD_LIST_COUNT elements. */
- struct typedef_field_list
- {
- struct typedef_field field;
- struct typedef_field_list *next;
- }
- *typedef_field_list;
+ struct typedef_field_list *typedef_field_list;
unsigned typedef_field_list_count;
};
compilation units. Set this to zero to disable caching. Cache
sizes of up to at least twenty will improve startup time for
typical inter-CU-reference binaries, at an obvious memory cost. */
-static int dwarf2_max_cache_age = 5;
+static int dwarf_max_cache_age = 5;
static void
-show_dwarf2_max_cache_age (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
+show_dwarf_max_cache_age (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("The upper bound on the age of cached "
- "dwarf2 compilation units is %s.\n"),
+ "DWARF compilation units is %s.\n"),
value);
}
\f
while ((per_cu = dw2_symtab_iter_next (&iter)) != NULL)
{
- struct symbol *sym = NULL;
+ struct symbol *sym, *with_opaque = NULL;
struct compunit_symtab *stab = dw2_instantiate_symtab (per_cu);
const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (stab);
struct block *block = BLOCKVECTOR_BLOCK (bv, block_index);
+ sym = block_find_symbol (block, name, domain,
+ block_find_non_opaque_type_preferred,
+ &with_opaque);
+
/* Some caution must be observed with overloaded functions
and methods, since the index will not contain any overload
information (but NAME might contain it). */
- sym = block_lookup_symbol (block, name, domain);
- if (sym && strcmp_iw (SYMBOL_SEARCH_NAME (sym), name) == 0)
- {
- if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
- return stab;
-
- stab_best = stab;
- }
+ if (sym != NULL
+ && strcmp_iw (SYMBOL_SEARCH_NAME (sym), name) == 0)
+ return stab;
+ if (with_opaque != NULL
+ && strcmp_iw (SYMBOL_SEARCH_NAME (with_opaque), name) == 0)
+ stab_best = stab;
/* Keep looking through other CUs. */
}
static void
dw2_map_matching_symbols (struct objfile *objfile,
- const char * name, domain_enum namespace,
+ const char * name, domain_enum domain,
int global,
int (*callback) (struct block *,
struct symbol *, void *),
(struct objfile *objfile,
expand_symtabs_file_matcher_ftype *file_matcher,
expand_symtabs_symbol_matcher_ftype *symbol_matcher,
+ expand_symtabs_exp_notify_ftype *expansion_notify,
enum search_domain kind,
void *data)
{
struct quick_file_names *file_data;
void **slot;
+ QUIT;
+
per_cu->v.quick->mark = 0;
/* We only need to look at symtabs not already expanded. */
offset_type *vec, vec_len, vec_idx;
int global_seen = 0;
+ QUIT;
+
if (index->symbol_table[idx] == 0 && index->symbol_table[idx + 1] == 0)
continue;
per_cu = dw2_get_cutu (cu_index);
if (file_matcher == NULL || per_cu->v.quick->mark)
- dw2_instantiate_symtab (per_cu);
+ {
+ int symtab_was_null =
+ (per_cu->v.quick->compunit_symtab == NULL);
+
+ dw2_instantiate_symtab (per_cu);
+
+ if (expansion_notify != NULL
+ && symtab_was_null
+ && per_cu->v.quick->compunit_symtab != NULL)
+ {
+ expansion_notify (per_cu->v.quick->compunit_symtab,
+ data);
+ }
+ }
}
}
}
void
dwarf2_build_psymtabs (struct objfile *objfile)
{
- volatile struct gdb_exception except;
if (objfile->global_psymbols.size == 0 && objfile->static_psymbols.size == 0)
{
init_psymbol_list (objfile, 1024);
}
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
/* This isn't really ideal: all the data we allocate on the
objfile's obstack is still uselessly kept around. However,
dwarf2_build_psymtabs_hard (objfile);
discard_cleanups (cleanups);
}
- if (except.reason < 0)
- exception_print (gdb_stderr, except);
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ exception_print (gdb_stderr, except);
+ }
+ END_CATCH
}
/* Return the total length of the CU described by HEADER. */
? &dwo_file->sections.abbrev
: &dwarf2_per_objfile->abbrev);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "Reading .debug_types%s for %s:\n",
dwo_file ? ".dwo" : "",
get_section_file_name (abbrev_section));
}
*slot = dwo_file ? (void *) dwo_tu : (void *) sig_type;
- if (dwarf2_read_debug > 1)
+ if (dwarf_read_debug > 1)
fprintf_unfiltered (gdb_stdlog, " offset 0x%x, signature %s\n",
offset.sect_off,
hex_string (signature));
comp_unit_die->attrs[i++] = *comp_dir;
comp_unit_die->num_attrs += num_extra_attrs;
- if (dwarf2_die_debug)
+ if (dwarf_die_debug)
{
fprintf_unfiltered (gdb_stdlog,
"Read die from %s@0x%x of %s:\n",
get_section_name (section),
(unsigned) (begin_info_ptr - section->buffer),
bfd_get_filename (abfd));
- dump_die (comp_unit_die, dwarf2_die_debug);
+ dump_die (comp_unit_die, dwarf_die_debug);
}
/* Save the comp_dir attribute. If there is no DWP file then we'll read
before we can reread the DWO file (this only applies to CUs, not TUs). */
int rereading_dwo_cu = 0;
- if (dwarf2_die_debug)
+ if (dwarf_die_debug)
fprintf_unfiltered (gdb_stdlog, "Reading %s unit at offset 0x%x\n",
this_cu->is_debug_types ? "type" : "comp",
this_cu->offset.sect_off);
struct die_info *comp_unit_die;
int has_children;
- if (dwarf2_die_debug)
+ if (dwarf_die_debug)
fprintf_unfiltered (gdb_stdlog, "Reading %s unit at offset 0x%x\n",
this_cu->is_debug_types ? "type" : "comp",
this_cu->offset.sect_off);
and build a psymtab for each of them. */
dwarf2_build_include_psymtabs (cu, comp_unit_die, pst);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
[IWBN if DWO skeletons had DW_AT_stmt_list]
call FUNC */
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "Building type unit groups ...\n");
/* Sort in a separate table to maintain the order of all_type_units
struct obstack temp_obstack;
int i;
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Building psymtabs of objfile %s ...\n",
objfile_name (objfile));
build_type_psymtab_dependencies, NULL);
}
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
print_tu_stats ();
set_partial_user (objfile);
do_cleanups (back_to);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "Done building psymtabs of %s\n",
objfile_name (objfile));
}
const gdb_byte *info_ptr;
bfd *abfd = get_section_bfd_owner (section);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "Reading %s for %s\n",
get_section_name (section),
get_section_file_name (section));
}
else
{
- /* Static Variable. Skip symbols without location descriptors. */
- if (pdi->d.locdesc == NULL)
+ int has_loc = pdi->d.locdesc != NULL;
+
+ /* Static Variable. Skip symbols whose value we cannot know (those
+ without location descriptors or constant values). */
+ if (!has_loc && !pdi->has_const_value)
{
xfree (built_actual_name);
return;
}
+
/* prim_record_minimal_symbol (actual_name, addr + baseaddr,
mst_file_data, objfile); */
add_psymbol_to_list (actual_name, strlen (actual_name),
built_actual_name != NULL,
VAR_DOMAIN, LOC_STATIC,
&objfile->static_psymbols,
- 0, addr + baseaddr,
+ 0,
+ has_loc ? addr + baseaddr : (CORE_ADDR) 0,
cu->language, objfile);
}
break;
{
struct dwarf2_queue_item *item, *next_item;
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog,
"Expanding one or more symtabs of objfile %s ...\n",
debug_print_threshold = 1;
}
- if (dwarf2_read_debug >= debug_print_threshold)
+ if (dwarf_read_debug >= debug_print_threshold)
fprintf_unfiltered (gdb_stdlog, "Expanding symtab of %s\n", buf);
if (per_cu->is_debug_types)
else
process_full_comp_unit (per_cu, item->pretend_language);
- if (dwarf2_read_debug >= debug_print_threshold)
+ if (dwarf_read_debug >= debug_print_threshold)
fprintf_unfiltered (gdb_stdlog, "Done expanding %s\n", buf);
}
dwarf2_queue_tail = NULL;
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Done expanding symtabs of %s.\n",
objfile_name (dwarf2_per_objfile->objfile));
case DW_TAG_enumeration_type:
case DW_TAG_enumerator:
case DW_TAG_subprogram:
+ case DW_TAG_inlined_subroutine:
case DW_TAG_member:
case DW_TAG_imported_declaration:
return 1;
const char *dir = NULL;
struct file_entry *fe = &lh->file_names[i];
- if (fe->dir_index)
+ if (fe->dir_index && lh->include_dirs != NULL)
dir = lh->include_dirs[fe->dir_index - 1];
dwarf2_start_subfile (fe->name, dir);
dwo_unit->offset = offset;
dwo_unit->length = cu->per_cu->length;
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, " offset 0x%x, dwo_id %s\n",
offset.sect_off, hex_string (dwo_unit->signature));
}
not present, in which case section->asection will be NULL. */
abfd = get_section_bfd_owner (section);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Reading %s for %s:\n",
get_section_name (section),
gdb_assert (dwp_file->version == 1);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Reading %s %s/%s in DWP V1 file: %s\n",
kind,
/* Create one if necessary. */
if (*dwo_file_slot == NULL)
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Creating virtual DWO: %s\n",
virtual_dwo_name);
}
else
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Using existing virtual DWO: %s\n",
virtual_dwo_name);
gdb_assert (dwp_file->version == 2);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Reading %s %s/%s in DWP V2 file: %s\n",
kind,
/* Create one if necessary. */
if (*dwo_file_slot == NULL)
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Creating virtual DWO: %s\n",
virtual_dwo_name);
}
else
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "Using existing virtual DWO: %s\n",
virtual_dwo_name);
dbfd = open_dwo_file (dwo_name, comp_dir);
if (dbfd == NULL)
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "DWO file not found: %s\n", dwo_name);
return NULL;
}
discard_cleanups (cleanups);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "DWO file found: %s\n", dwo_name);
return dwo_file;
if (dbfd == NULL)
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "DWP file not found: %s\n", dwp_name);
do_cleanups (cleanups);
return NULL;
dwp_file->loaded_cus = allocate_dwp_loaded_cutus_table (objfile);
dwp_file->loaded_tus = allocate_dwp_loaded_cutus_table (objfile);
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "DWP file found: %s\n", dwp_file->name);
fprintf_unfiltered (gdb_stdlog,
if (dwo_cutu != NULL)
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog,
"Virtual DWO %s %s found: @%s\n",
if (dwo_cutu != NULL)
{
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "DWO %s %s(%s) found: @%s\n",
kind, dwo_name, hex_string (signature),
someone deleted the DWO/DWP file, or the search path isn't set up
correctly to find the file. */
- if (dwarf2_read_debug)
+ if (dwarf_read_debug)
{
fprintf_unfiltered (gdb_stdlog, "DWO %s %s(%s) not found\n",
kind, dwo_name, hex_string (signature));
cleanups = make_cleanup (xfree, offsets);
offsets_end = offsets;
- child_die = die->child;
- while (child_die && child_die->tag)
+ for (child_die = die->child;
+ child_die && child_die->tag;
+ child_die = sibling_die (child_die))
{
+ struct die_info *child_origin_die;
+ struct dwarf2_cu *child_origin_cu;
+
+ /* We are trying to process concrete instance entries:
+ DW_TAG_GNU_call_site DIEs indeed have a DW_AT_abstract_origin tag, but
+ it's not relevant to our analysis here. i.e. detecting DIEs that are
+ present in the abstract instance but not referenced in the concrete
+ one. */
+ if (child_die->tag == DW_TAG_GNU_call_site)
+ continue;
+
/* For each CHILD_DIE, find the corresponding child of
ORIGIN_DIE. If there is more than one layer of
DW_AT_abstract_origin, follow them all; there shouldn't be,
but GCC versions at least through 4.4 generate this (GCC PR
40573). */
- struct die_info *child_origin_die = child_die;
- struct dwarf2_cu *child_origin_cu = cu;
-
+ child_origin_die = child_die;
+ child_origin_cu = cu;
while (1)
{
attr = dwarf2_attr (child_origin_die, DW_AT_abstract_origin,
else
*offsets_end++ = child_origin_die->offset;
}
- child_die = sibling_die (child_die);
}
qsort (offsets, offsets_end - offsets, sizeof (*offsets),
unsigned_int_compar);
{
struct objfile *objfile = cu->objfile;
struct gdbarch *gdbarch = get_objfile_arch (objfile);
- struct context_stack *new;
+ struct context_stack *newobj;
CORE_ADDR lowpc;
CORE_ADDR highpc;
struct die_info *child_die;
}
}
- new = push_context (0, lowpc);
- new->name = new_symbol_full (die, read_type_die (die, cu), cu,
+ newobj = push_context (0, lowpc);
+ newobj->name = new_symbol_full (die, read_type_die (die, cu), cu,
(struct symbol *) templ_func);
/* If there is a location expression for DW_AT_frame_base, record
it. */
attr = dwarf2_attr (die, DW_AT_frame_base, cu);
if (attr)
- dwarf2_symbol_mark_computed (attr, new->name, cu, 1);
+ dwarf2_symbol_mark_computed (attr, newobj->name, cu, 1);
cu->list_in_scope = &local_symbols;
}
}
- new = pop_context ();
+ newobj = pop_context ();
/* Make a block for the local symbols within. */
- block = finish_block (new->name, &local_symbols, new->old_blocks,
+ block = finish_block (newobj->name, &local_symbols, newobj->old_blocks,
lowpc, highpc);
/* For C++, set the block's scope. */
/* If we have address ranges, record them. */
dwarf2_record_block_ranges (die, block, baseaddr, cu);
- gdbarch_make_symbol_special (gdbarch, new->name, objfile);
+ gdbarch_make_symbol_special (gdbarch, newobj->name, objfile);
/* Attach template arguments to function. */
if (! VEC_empty (symbolp, template_args))
a function declares a class that has methods). This means that
when we finish processing a function scope, we may need to go
back to building a containing block's symbol lists. */
- local_symbols = new->locals;
- using_directives = new->using_directives;
+ local_symbols = newobj->locals;
+ using_directives = newobj->using_directives;
/* If we've finished processing a top-level function, subsequent
symbols go in the file symbol list. */
{
struct objfile *objfile = cu->objfile;
struct gdbarch *gdbarch = get_objfile_arch (objfile);
- struct context_stack *new;
+ struct context_stack *newobj;
CORE_ADDR lowpc, highpc;
struct die_info *child_die;
CORE_ADDR baseaddr;
child_die = sibling_die (child_die);
}
}
- new = pop_context ();
+ inherit_abstract_dies (die, cu);
+ newobj = pop_context ();
if (local_symbols != NULL || using_directives != NULL)
{
struct block *block
- = finish_block (0, &local_symbols, new->old_blocks, new->start_addr,
- highpc);
+ = finish_block (0, &local_symbols, newobj->old_blocks,
+ newobj->start_addr, highpc);
/* Note that recording ranges after traversing children, as we
do here, means that recording a parent's ranges entails
to do. */
dwarf2_record_block_ranges (die, block, baseaddr, cu);
}
- local_symbols = new->locals;
- using_directives = new->using_directives;
+ local_symbols = newobj->locals;
+ using_directives = newobj->using_directives;
}
/* Read in DW_TAG_GNU_call_site and insert it to CU->call_site_htab. */
check_producer (struct dwarf2_cu *cu)
{
const char *cs;
- int major, minor, release;
+ int major, minor;
if (cu->producer == NULL)
{
combination. gcc-4.5.x -gdwarf-4 binaries have DW_AT_accessibility
interpreted incorrectly by GDB now - GCC PR debug/48229. */
}
- else if (strncmp (cu->producer, "GNU ", strlen ("GNU ")) == 0)
+ else if (producer_is_gcc (cu->producer, &major, &minor))
{
- /* Skip any identifier after "GNU " - such as "C++" or "Java". */
-
- cs = &cu->producer[strlen ("GNU ")];
- while (*cs && !isdigit (*cs))
- cs++;
- if (sscanf (cs, "%d.%d.%d", &major, &minor, &release) != 3)
- {
- /* Not recognized as GCC. */
- }
- else
- {
- cu->producer_is_gxx_lt_4_6 = major < 4 || (major == 4 && minor < 6);
- cu->producer_is_gcc_lt_4_3 = major < 4 || (major == 4 && minor < 3);
- }
+ cu->producer_is_gxx_lt_4_6 = major < 4 || (major == 4 && minor < 6);
+ cu->producer_is_gcc_lt_4_3 = major < 4 || (major == 4 && minor < 3);
}
- else if (strncmp (cu->producer, "Intel(R) C", strlen ("Intel(R) C")) == 0)
+ else if (startswith (cu->producer, "Intel(R) C"))
cu->producer_is_icc = 1;
else
{
dwarf2_is_constructor (struct die_info *die, struct dwarf2_cu *cu)
{
const char *fieldname;
- const char *typename;
+ const char *type_name;
int len;
if (die->parent == NULL)
return 0;
fieldname = dwarf2_name (die, cu);
- typename = dwarf2_name (die->parent, cu);
- if (fieldname == NULL || typename == NULL)
+ type_name = dwarf2_name (die->parent, cu);
+ if (fieldname == NULL || type_name == NULL)
return 0;
len = strlen (fieldname);
- return (strncmp (fieldname, typename, len) == 0
- && (typename[len] == '\0' || typename[len] == '<'));
+ return (strncmp (fieldname, type_name, len) == 0
+ && (type_name[len] == '\0' || type_name[len] == '<'));
}
/* Add a member function to the proper fieldlist. */
dwarf2_complex_location_expr_complaint ();
if (!fnp->fcontext)
- fnp->fcontext = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (this_type, 0));
+ {
+ /* If there is no `this' field and no DW_AT_containing_type,
+ we cannot actually find a base class context for the
+ vtable! */
+ if (TYPE_NFIELDS (this_type) == 0
+ || !TYPE_FIELD_ARTIFICIAL (this_type, 0))
+ {
+ complaint (&symfile_complaints,
+ _("cannot determine context for virtual member "
+ "function \"%s\" (offset %d)"),
+ fieldname, die->offset.sect_off);
+ }
+ else
+ {
+ fnp->fcontext
+ = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (this_type, 0));
+ }
+ }
}
else if (attr_form_is_section_offset (attr))
{
/* Look for the C++ and Java forms of the vtable. */
if ((cu->language == language_java
- && strncmp (name, vtable, sizeof (vtable) - 1) == 0)
- || (strncmp (name, vptr, sizeof (vptr) - 1) == 0
+ && startswith (name, vtable))
+ || (startswith (name, vptr)
&& is_cplus_marker (name[sizeof (vptr) - 1])))
return 1;
static void
quirk_gcc_member_function_pointer (struct type *type, struct objfile *objfile)
{
- struct type *pfn_type, *domain_type, *new_type;
+ struct type *pfn_type, *self_type, *new_type;
/* Check for a structure with no name and two children. */
if (TYPE_CODE (type) != TYPE_CODE_STRUCT || TYPE_NFIELDS (type) != 2)
|| TYPE_CODE (TYPE_FIELD_TYPE (pfn_type, 0)) != TYPE_CODE_PTR)
return;
- domain_type = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (pfn_type, 0));
+ self_type = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (pfn_type, 0));
new_type = alloc_type (objfile);
- smash_to_method_type (new_type, domain_type, TYPE_TARGET_TYPE (pfn_type),
+ smash_to_method_type (new_type, self_type, TYPE_TARGET_TYPE (pfn_type),
TYPE_FIELDS (pfn_type), TYPE_NFIELDS (pfn_type),
TYPE_VARARGS (pfn_type));
smash_to_methodptr_type (type, new_type);
{
struct type *t = die_containing_type (die, cu);
- TYPE_VPTR_BASETYPE (type) = t;
+ set_type_vptr_basetype (type, t);
if (type == t)
{
int i;
if (is_vtable_name (fieldname, cu))
{
- TYPE_VPTR_FIELDNO (type) = i;
+ set_type_vptr_fieldno (type, i);
break;
}
}
}
else
{
- TYPE_VPTR_FIELDNO (type) = TYPE_VPTR_FIELDNO (t);
+ set_type_vptr_fieldno (type, TYPE_VPTR_FIELDNO (t));
}
}
else if (cu->producer
- && strncmp (cu->producer,
- "IBM(R) XL C/C++ Advanced Edition", 32) == 0)
+ && startswith (cu->producer, "IBM(R) XL C/C++ Advanced Edition"))
{
/* The IBM XLC compiler does not provide direct indication
of the containing type, but the vtable pointer is
{
if (strcmp (TYPE_FIELD_NAME (type, i), "__vfp") == 0)
{
- TYPE_VPTR_FIELDNO (type) = i;
- TYPE_VPTR_BASETYPE (type) = type;
+ set_type_vptr_fieldno (type, i);
+ set_type_vptr_basetype (type, type);
break;
}
}
current_die != NULL;
current_die = dwarf2_extension (die, &cu))
{
- name = dwarf2_name (current_die, cu);
+ /* We don't use dwarf2_name here so that we can detect the absence
+ of a name -> anonymous namespace. */
+ struct attribute *attr = dwarf2_attr (die, DW_AT_name, cu);
+
+ if (attr != NULL)
+ name = DW_STRING (attr);
if (name != NULL)
break;
}
return set_die_type (die, cv_type, cu);
}
+/* Handle DW_TAG_atomic_type. */
+
+static struct type *
+read_tag_atomic_type (struct die_info *die, struct dwarf2_cu *cu)
+{
+ struct type *base_type, *cv_type;
+
+ base_type = die_type (die, cu);
+
+ /* The die_type call above may have already set the type for this DIE. */
+ cv_type = get_die_type (die, cu);
+ if (cv_type)
+ return cv_type;
+
+ cv_type = make_atomic_type (base_type);
+ return set_die_type (die, cv_type, cu);
+}
+
/* Extract all information from a DW_TAG_string_type DIE and add to
the user defined type vector. It isn't really a user defined type,
but it behaves like one, with other DIE's using an AT_user_def_type
type_flags |= TYPE_FLAG_UNSIGNED;
if (cu->language == language_fortran
&& name
- && strncmp (name, "character(", sizeof ("character(") - 1) == 0)
+ && startswith (name, "character("))
code = TYPE_CODE_CHAR;
break;
case DW_ATE_signed_char:
return 0;
baton = obstack_alloc (obstack, sizeof (*baton));
- baton->referenced_type = get_die_type (target_die->parent,
- target_cu);
+ baton->referenced_type = read_type_die (target_die->parent,
+ target_cu);
baton->offset_info.offset = offset;
baton->offset_info.type = die_type (target_die, target_cu);
prop->data.baton = baton;
struct die_info *die = read_die_and_siblings_1 (reader, info_ptr,
new_info_ptr, parent);
- if (dwarf2_die_debug)
+ if (dwarf_die_debug)
{
fprintf_unfiltered (gdb_stdlog,
"Read die from %s@0x%x of %s:\n",
get_section_name (reader->die_section),
(unsigned) (info_ptr - reader->die_section->buffer),
bfd_get_filename (reader->abfd));
- dump_die (die, dwarf2_die_debug);
+ dump_die (die, dwarf_die_debug);
}
return die;
result = read_full_die_1 (reader, diep, info_ptr, has_children, 0);
- if (dwarf2_die_debug)
+ if (dwarf_die_debug)
{
fprintf_unfiltered (gdb_stdlog,
"Read die from %s@0x%x of %s:\n",
get_section_name (reader->die_section),
(unsigned) (info_ptr - reader->die_section->buffer),
bfd_get_filename (reader->abfd));
- dump_die (*diep, dwarf2_die_debug);
+ dump_die (*diep, dwarf_die_debug);
}
return result;
case DW_AT_byte_size:
part_die->has_byte_size = 1;
break;
+ case DW_AT_const_value:
+ part_die->has_const_value = 1;
+ break;
case DW_AT_calling_convention:
/* DWARF doesn't provide a way to identify a program's source-level
entry point. DW_AT_calling_convention attributes are only meant
case DW_LANG_Fortran77:
case DW_LANG_Fortran90:
case DW_LANG_Fortran95:
+ case DW_LANG_Fortran03:
+ case DW_LANG_Fortran08:
cu->language = language_fortran;
break;
case DW_LANG_Go:
static void
add_include_dir (struct line_header *lh, const char *include_dir)
{
+ if (dwarf_line_debug >= 2)
+ fprintf_unfiltered (gdb_stdlog, "Adding dir %u: %s\n",
+ lh->num_include_dirs + 1, include_dir);
+
/* Grow the array if necessary. */
if (lh->include_dirs_size == 0)
{
{
struct file_entry *fe;
+ if (dwarf_line_debug >= 2)
+ fprintf_unfiltered (gdb_stdlog, "Adding file %u: %s\n",
+ lh->num_file_names + 1, name);
+
/* Grow the array if necessary. */
if (lh->file_names_size == 0)
{
fe->symtab = NULL;
}
-/* A convenience function to find the proper .debug_line section for a
- CU. */
+/* A convenience function to find the proper .debug_line section for a CU. */
static struct dwarf2_section_info *
get_debug_line_section (struct dwarf2_cu *cu)
/* Read the statement program header starting at OFFSET in
.debug_line, or .debug_line.dwo. Return a pointer
to a struct line_header, allocated using xmalloc.
+ Returns NULL if there is a problem reading the header, e.g., if it
+ has a version we don't understand.
NOTE: the strings in the include directory and file name tables of
the returned object point into the dwarf line section buffer,
lh->statement_program_end = line_ptr + lh->total_length;
lh->version = read_2_bytes (abfd, line_ptr);
line_ptr += 2;
+ if (lh->version > 4)
+ {
+ /* This is a version we don't understand. The format could have
+ changed in ways we don't handle properly so just punt. */
+ complaint (&symfile_complaints,
+ _("unsupported version in .debug_line section"));
+ return NULL;
+ }
lh->header_length = read_offset_1 (abfd, line_ptr, offset_size);
line_ptr += offset_size;
lh->minimum_instruction_length = read_1_byte (abfd, line_ptr);
char *copied_name = NULL;
int file_is_pst;
- if (fe.dir_index)
+ if (fe.dir_index && lh->include_dirs != NULL)
dir_name = lh->include_dirs[fe.dir_index - 1];
if (!IS_ABSOLUTE_PATH (include_name)
return include_name;
}
+/* State machine to track the state of the line number program. */
+
+typedef struct
+{
+ /* These are part of the standard DWARF line number state machine. */
+
+ unsigned char op_index;
+ unsigned int file;
+ unsigned int line;
+ CORE_ADDR address;
+ int is_stmt;
+ unsigned int discriminator;
+
+ /* Additional bits of state we need to track. */
+
+ /* The last file that we called dwarf2_start_subfile for.
+ This is only used for TLLs. */
+ unsigned int last_file;
+ /* The last file a line number was recorded for. */
+ struct subfile *last_subfile;
+
+ /* The function to call to record a line. */
+ record_line_ftype *record_line;
+
+ /* The last line number that was recorded, used to coalesce
+ consecutive entries for the same line. This can happen, for
+ example, when discriminators are present. PR 17276. */
+ unsigned int last_line;
+ int line_has_non_zero_discriminator;
+} lnp_state_machine;
+
+/* There's a lot of static state to pass to dwarf_record_line.
+ This keeps it all together. */
+
+typedef struct
+{
+ /* The gdbarch. */
+ struct gdbarch *gdbarch;
+
+ /* The line number header. */
+ struct line_header *line_header;
+
+ /* Non-zero if we're recording lines.
+ Otherwise we're building partial symtabs and are just interested in
+ finding include files mentioned by the line number program. */
+ int record_lines_p;
+} lnp_reader_state;
+
/* Ignore this record_line request. */
static void
in the line table of subfile SUBFILE. */
static void
-dwarf_record_line (struct gdbarch *gdbarch, struct subfile *subfile,
- unsigned int line, CORE_ADDR address,
- record_line_ftype p_record_line)
+dwarf_record_line_1 (struct gdbarch *gdbarch, struct subfile *subfile,
+ unsigned int line, CORE_ADDR address,
+ record_line_ftype p_record_line)
{
CORE_ADDR addr = gdbarch_addr_bits_remove (gdbarch, address);
+ if (dwarf_line_debug)
+ {
+ fprintf_unfiltered (gdb_stdlog,
+ "Recording line %u, file %s, address %s\n",
+ line, lbasename (subfile->name),
+ paddress (gdbarch, address));
+ }
+
(*p_record_line) (subfile, line, addr);
}
/* Subroutine of dwarf_decode_lines_1 to simplify it.
Mark the end of a set of line number records.
- The arguments are the same as for dwarf_record_line.
+ The arguments are the same as for dwarf_record_line_1.
If SUBFILE is NULL the request is ignored. */
static void
dwarf_finish_line (struct gdbarch *gdbarch, struct subfile *subfile,
CORE_ADDR address, record_line_ftype p_record_line)
{
- if (subfile != NULL)
- dwarf_record_line (gdbarch, subfile, 0, address, p_record_line);
+ if (subfile == NULL)
+ return;
+
+ if (dwarf_line_debug)
+ {
+ fprintf_unfiltered (gdb_stdlog,
+ "Finishing current line, file %s, address %s\n",
+ lbasename (subfile->name),
+ paddress (gdbarch, address));
+ }
+
+ dwarf_record_line_1 (gdbarch, subfile, 0, address, p_record_line);
+}
+
+/* Record the line in STATE.
+ END_SEQUENCE is non-zero if we're processing the end of a sequence. */
+
+static void
+dwarf_record_line (lnp_reader_state *reader, lnp_state_machine *state,
+ int end_sequence)
+{
+ const struct line_header *lh = reader->line_header;
+ unsigned int file, line, discriminator;
+ int is_stmt;
+
+ file = state->file;
+ line = state->line;
+ is_stmt = state->is_stmt;
+ discriminator = state->discriminator;
+
+ if (dwarf_line_debug)
+ {
+ fprintf_unfiltered (gdb_stdlog,
+ "Processing actual line %u: file %u,"
+ " address %s, is_stmt %u, discrim %u\n",
+ line, file,
+ paddress (reader->gdbarch, state->address),
+ is_stmt, discriminator);
+ }
+
+ if (file == 0 || file - 1 >= lh->num_file_names)
+ dwarf2_debug_line_missing_file_complaint ();
+ /* For now we ignore lines not starting on an instruction boundary.
+ But not when processing end_sequence for compatibility with the
+ previous version of the code. */
+ else if (state->op_index == 0 || end_sequence)
+ {
+ lh->file_names[file - 1].included_p = 1;
+ if (reader->record_lines_p && is_stmt)
+ {
+ if (state->last_subfile != current_subfile)
+ {
+ dwarf_finish_line (reader->gdbarch, state->last_subfile,
+ state->address, state->record_line);
+ }
+
+ if (!end_sequence)
+ {
+ if (dwarf_record_line_p (line, state->last_line,
+ state->line_has_non_zero_discriminator,
+ state->last_subfile))
+ {
+ dwarf_record_line_1 (reader->gdbarch, current_subfile,
+ line, state->address,
+ state->record_line);
+ }
+ state->last_subfile = current_subfile;
+ state->last_line = line;
+ }
+ }
+ }
+}
+
+/* Initialize STATE for the start of a line number program. */
+
+static void
+init_lnp_state_machine (lnp_state_machine *state,
+ const lnp_reader_state *reader)
+{
+ memset (state, 0, sizeof (*state));
+
+ /* Just starting, there is no "last file". */
+ state->last_file = 0;
+ state->last_subfile = NULL;
+
+ state->record_line = record_line;
+
+ state->last_line = 0;
+ state->line_has_non_zero_discriminator = 0;
+
+ /* Initialize these according to the DWARF spec. */
+ state->op_index = 0;
+ state->file = 1;
+ state->line = 1;
+ /* Call `gdbarch_adjust_dwarf2_line' on the initial 0 address as if there
+ was a line entry for it so that the backend has a chance to adjust it
+ and also record it in case it needs it. This is currently used by MIPS
+ code, cf. `mips_adjust_dwarf2_line'. */
+ state->address = gdbarch_adjust_dwarf2_line (reader->gdbarch, 0, 0);
+ state->is_stmt = reader->line_header->default_is_stmt;
+ state->discriminator = 0;
+}
+
+/* Check address and if invalid nop-out the rest of the lines in this
+ sequence. */
+
+static void
+check_line_address (struct dwarf2_cu *cu, lnp_state_machine *state,
+ const gdb_byte *line_ptr,
+ CORE_ADDR lowpc, CORE_ADDR address)
+{
+ /* If address < lowpc then it's not a usable value, it's outside the
+ pc range of the CU. However, we restrict the test to only address
+ values of zero to preserve GDB's previous behaviour which is to
+ handle the specific case of a function being GC'd by the linker. */
+
+ if (address == 0 && address < lowpc)
+ {
+ /* This line table is for a function which has been
+ GCd by the linker. Ignore it. PR gdb/12528 */
+
+ struct objfile *objfile = cu->objfile;
+ long line_offset = line_ptr - get_debug_line_section (cu)->buffer;
+
+ complaint (&symfile_complaints,
+ _(".debug_line address at offset 0x%lx is 0 [in module %s]"),
+ line_offset, objfile_name (objfile));
+ state->record_line = noop_record_line;
+ /* Note: sm.record_line is left as noop_record_line
+ until we see DW_LNE_end_sequence. */
+ }
}
/* Subroutine of dwarf_decode_lines to simplify it.
- Process the line number information in LH. */
+ Process the line number information in LH.
+ If DECODE_FOR_PST_P is non-zero, all we do is process the line number
+ program in order to set included_p for every referenced header. */
static void
dwarf_decode_lines_1 (struct line_header *lh, struct dwarf2_cu *cu,
struct objfile *objfile = cu->objfile;
bfd *abfd = objfile->obfd;
struct gdbarch *gdbarch = get_objfile_arch (objfile);
- struct subfile *last_subfile = NULL;
- void (*p_record_line) (struct subfile *subfile, int line, CORE_ADDR pc)
- = record_line;
+ /* Non-zero if we're recording line info (as opposed to building partial
+ symtabs). */
+ int record_lines_p = !decode_for_pst_p;
+ /* A collection of things we need to pass to dwarf_record_line. */
+ lnp_reader_state reader_state;
baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
line_ptr = lh->statement_program_start;
line_end = lh->statement_program_end;
+ reader_state.gdbarch = gdbarch;
+ reader_state.line_header = lh;
+ reader_state.record_lines_p = record_lines_p;
+
/* Read the statement sequences until there's nothing left. */
while (line_ptr < line_end)
{
- /* State machine registers. Call `gdbarch_adjust_dwarf2_line'
- on the initial 0 address as if there was a line entry for it
- so that the backend has a chance to adjust it and also record
- it in case it needs it. This is currently used by MIPS code,
- cf. `mips_adjust_dwarf2_line'. */
- CORE_ADDR address = gdbarch_adjust_dwarf2_line (gdbarch, 0, 0);
- unsigned int file = 1;
- unsigned int line = 1;
- int is_stmt = lh->default_is_stmt;
+ /* The DWARF line number program state machine. */
+ lnp_state_machine state_machine;
int end_sequence = 0;
- unsigned char op_index = 0;
- unsigned int discriminator = 0;
- /* The last line number that was recorded, used to coalesce
- consecutive entries for the same line. This can happen, for
- example, when discriminators are present. PR 17276. */
- unsigned int last_line = 0;
- int line_has_non_zero_discriminator = 0;
-
- if (!decode_for_pst_p && lh->num_file_names >= file)
+
+ /* Reset the state machine at the start of each sequence. */
+ init_lnp_state_machine (&state_machine, &reader_state);
+
+ if (record_lines_p && lh->num_file_names >= state_machine.file)
{
/* Start a subfile for the current file of the state machine. */
/* lh->include_dirs and lh->file_names are 0-based, but the
directory and file name numbers in the statement program
are 1-based. */
- struct file_entry *fe = &lh->file_names[file - 1];
+ struct file_entry *fe = &lh->file_names[state_machine.file - 1];
const char *dir = NULL;
- if (fe->dir_index)
+ if (fe->dir_index && lh->include_dirs != NULL)
dir = lh->include_dirs[fe->dir_index - 1];
dwarf2_start_subfile (fe->name, dir);
}
/* Decode the table. */
- while (!end_sequence)
+ while (line_ptr < line_end && !end_sequence)
{
op_code = read_1_byte (abfd, line_ptr);
line_ptr += 1;
- if (line_ptr > line_end)
- {
- dwarf2_debug_line_missing_end_sequence_complaint ();
- break;
- }
if (op_code >= lh->opcode_base)
{
int line_delta;
adj_opcode = op_code - lh->opcode_base;
- addr_adj = (((op_index + (adj_opcode / lh->line_range))
+ addr_adj = (((state_machine.op_index
+ + (adj_opcode / lh->line_range))
/ lh->maximum_ops_per_instruction)
* lh->minimum_instruction_length);
- address += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
- op_index = ((op_index + (adj_opcode / lh->line_range))
- % lh->maximum_ops_per_instruction);
+ state_machine.address
+ += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
+ state_machine.op_index = ((state_machine.op_index
+ + (adj_opcode / lh->line_range))
+ % lh->maximum_ops_per_instruction);
line_delta = lh->line_base + (adj_opcode % lh->line_range);
- line += line_delta;
+ state_machine.line += line_delta;
if (line_delta != 0)
- line_has_non_zero_discriminator = discriminator != 0;
- if (lh->num_file_names < file || file == 0)
- dwarf2_debug_line_missing_file_complaint ();
- /* For now we ignore lines not starting on an
- instruction boundary. */
- else if (op_index == 0)
- {
- lh->file_names[file - 1].included_p = 1;
- if (!decode_for_pst_p && is_stmt)
- {
- if (last_subfile != current_subfile)
- {
- dwarf_finish_line (gdbarch, last_subfile,
- address, p_record_line);
- }
- if (dwarf_record_line_p (line, last_line,
- line_has_non_zero_discriminator,
- last_subfile))
- {
- dwarf_record_line (gdbarch, current_subfile,
- line, address, p_record_line);
- }
- last_subfile = current_subfile;
- last_line = line;
- }
- }
- discriminator = 0;
+ state_machine.line_has_non_zero_discriminator
+ = state_machine.discriminator != 0;
+
+ dwarf_record_line (&reader_state, &state_machine, 0);
+ state_machine.discriminator = 0;
}
else switch (op_code)
{
switch (extended_op)
{
case DW_LNE_end_sequence:
- p_record_line = record_line;
+ state_machine.record_line = record_line;
end_sequence = 1;
break;
case DW_LNE_set_address:
- address = read_address (abfd, line_ptr, cu, &bytes_read);
-
- /* If address < lowpc then it's not a usable value, it's
- outside the pc range of the CU. However, we restrict
- the test to only address values of zero to preserve
- GDB's previous behaviour which is to handle the specific
- case of a function being GC'd by the linker. */
- if (address == 0 && address < lowpc)
- {
- /* This line table is for a function which has been
- GCd by the linker. Ignore it. PR gdb/12528 */
-
- long line_offset
- = line_ptr - get_debug_line_section (cu)->buffer;
-
- complaint (&symfile_complaints,
- _(".debug_line address at offset 0x%lx is 0 "
- "[in module %s]"),
- line_offset, objfile_name (objfile));
- p_record_line = noop_record_line;
- /* Note: p_record_line is left as noop_record_line
- until we see DW_LNE_end_sequence. */
- }
+ {
+ CORE_ADDR address
+ = read_address (abfd, line_ptr, cu, &bytes_read);
- op_index = 0;
- line_ptr += bytes_read;
- address += baseaddr;
- address = gdbarch_adjust_dwarf2_line (gdbarch, address, 0);
+ line_ptr += bytes_read;
+ check_line_address (cu, &state_machine, line_ptr,
+ lowpc, address);
+ state_machine.op_index = 0;
+ address += baseaddr;
+ state_machine.address
+ = gdbarch_adjust_dwarf2_line (gdbarch, address, 0);
+ }
break;
case DW_LNE_define_file:
{
if there are consecutive entries for the same
(non-prologue) line we want to coalesce them.
PR 17276. */
- discriminator = read_unsigned_leb128 (abfd, line_ptr,
- &bytes_read);
- line_has_non_zero_discriminator |= discriminator != 0;
+ state_machine.discriminator
+ = read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
+ state_machine.line_has_non_zero_discriminator
+ |= state_machine.discriminator != 0;
line_ptr += bytes_read;
break;
default:
}
break;
case DW_LNS_copy:
- if (lh->num_file_names < file || file == 0)
- dwarf2_debug_line_missing_file_complaint ();
- else
- {
- lh->file_names[file - 1].included_p = 1;
- if (!decode_for_pst_p && is_stmt)
- {
- if (last_subfile != current_subfile)
- {
- dwarf_finish_line (gdbarch, last_subfile,
- address, p_record_line);
- }
- if (dwarf_record_line_p (line, last_line,
- line_has_non_zero_discriminator,
- last_subfile))
- {
- dwarf_record_line (gdbarch, current_subfile,
- line, address, p_record_line);
- }
- last_subfile = current_subfile;
- last_line = line;
- }
- }
- discriminator = 0;
+ dwarf_record_line (&reader_state, &state_machine, 0);
+ state_machine.discriminator = 0;
break;
case DW_LNS_advance_pc:
{
= read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
CORE_ADDR addr_adj;
- addr_adj = (((op_index + adjust)
+ addr_adj = (((state_machine.op_index + adjust)
/ lh->maximum_ops_per_instruction)
* lh->minimum_instruction_length);
- address += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
- op_index = ((op_index + adjust)
- % lh->maximum_ops_per_instruction);
+ state_machine.address
+ += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
+ state_machine.op_index = ((state_machine.op_index + adjust)
+ % lh->maximum_ops_per_instruction);
line_ptr += bytes_read;
}
break;
int line_delta
= read_signed_leb128 (abfd, line_ptr, &bytes_read);
- line += line_delta;
+ state_machine.line += line_delta;
if (line_delta != 0)
- line_has_non_zero_discriminator = discriminator != 0;
+ state_machine.line_has_non_zero_discriminator
+ = state_machine.discriminator != 0;
line_ptr += bytes_read;
}
break;
case DW_LNS_set_file:
- {
- /* The arrays lh->include_dirs and lh->file_names are
- 0-based, but the directory and file name numbers in
- the statement program are 1-based. */
- struct file_entry *fe;
- const char *dir = NULL;
-
- file = read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
- line_ptr += bytes_read;
- if (lh->num_file_names < file || file == 0)
- 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;
- line_has_non_zero_discriminator = discriminator != 0;
- dwarf2_start_subfile (fe->name, dir);
- }
- }
- }
+ {
+ /* The arrays lh->include_dirs and lh->file_names are
+ 0-based, but the directory and file name numbers in
+ the statement program are 1-based. */
+ struct file_entry *fe;
+ const char *dir = NULL;
+
+ state_machine.file = read_unsigned_leb128 (abfd, line_ptr,
+ &bytes_read);
+ line_ptr += bytes_read;
+ if (state_machine.file == 0
+ || state_machine.file - 1 >= lh->num_file_names)
+ dwarf2_debug_line_missing_file_complaint ();
+ else
+ {
+ fe = &lh->file_names[state_machine.file - 1];
+ if (fe->dir_index && lh->include_dirs != NULL)
+ dir = lh->include_dirs[fe->dir_index - 1];
+ if (record_lines_p)
+ {
+ state_machine.last_subfile = current_subfile;
+ state_machine.line_has_non_zero_discriminator
+ = state_machine.discriminator != 0;
+ dwarf2_start_subfile (fe->name, dir);
+ }
+ }
+ }
break;
case DW_LNS_set_column:
(void) read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
line_ptr += bytes_read;
break;
case DW_LNS_negate_stmt:
- is_stmt = (!is_stmt);
+ state_machine.is_stmt = (!state_machine.is_stmt);
break;
case DW_LNS_set_basic_block:
break;
CORE_ADDR adjust = (255 - lh->opcode_base) / lh->line_range;
CORE_ADDR addr_adj;
- addr_adj = (((op_index + adjust)
+ addr_adj = (((state_machine.op_index + adjust)
/ lh->maximum_ops_per_instruction)
* lh->minimum_instruction_length);
- address += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
- op_index = ((op_index + adjust)
- % lh->maximum_ops_per_instruction);
+ state_machine.address
+ += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
+ state_machine.op_index = ((state_machine.op_index + adjust)
+ % lh->maximum_ops_per_instruction);
}
break;
case DW_LNS_fixed_advance_pc:
CORE_ADDR addr_adj;
addr_adj = read_2_bytes (abfd, line_ptr);
- address += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
- op_index = 0;
+ state_machine.address
+ += gdbarch_adjust_dwarf2_line (gdbarch, addr_adj, 1);
+ state_machine.op_index = 0;
line_ptr += 2;
}
break;
}
}
}
- if (lh->num_file_names < file || file == 0)
- dwarf2_debug_line_missing_file_complaint ();
- else
- {
- lh->file_names[file - 1].included_p = 1;
- if (!decode_for_pst_p)
- {
- dwarf_finish_line (gdbarch, current_subfile, address,
- p_record_line);
- }
- }
+
+ if (!end_sequence)
+ dwarf2_debug_line_missing_end_sequence_complaint ();
+
+ /* We got a DW_LNE_end_sequence (or we ran off the end of the buffer,
+ in which case we still finish recording the last line). */
+ dwarf_record_line (&reader_state, &state_machine, 1);
}
}
struct file_entry *fe;
fe = &lh->file_names[i];
- if (fe->dir_index)
+ if (fe->dir_index && lh->include_dirs != NULL)
dir = lh->include_dirs[fe->dir_index - 1];
dwarf2_start_subfile (fe->name, dir);
if (cu->language == language_fortran && die->parent
&& die->parent->tag == DW_TAG_module
&& cu->producer
- && strncmp (cu->producer, "GNU Fortran ", 12) == 0)
+ && startswith (cu->producer, "GNU Fortran "))
SYMBOL_ACLASS_INDEX (sym) = LOC_UNRESOLVED;
/* A variable with DW_AT_external is never static,
case DW_TAG_module:
this_type = read_module_type (die, cu);
break;
+ case DW_TAG_atomic_type:
+ this_type = read_tag_atomic_type (die, cu);
+ break;
default:
complaint (&symfile_complaints,
_("unexpected tag in read_type_die: '%s'"),
return name;
}
-/* Get name of a die, return NULL if not found. */
+/* Get name of a die, return NULL if not found.
+ Anonymous namespaces are converted to their magic string. */
static const char *
dwarf2_name (struct die_info *die, struct dwarf2_cu *cu)
attr = dwarf2_attr (die, DW_AT_name, cu);
if ((!attr || !DW_STRING (attr))
+ && die->tag != DW_TAG_namespace
&& die->tag != DW_TAG_class_type
&& die->tag != DW_TAG_interface_type
&& die->tag != DW_TAG_structure_type
to canonicalize them. */
return DW_STRING (attr);
+ case DW_TAG_namespace:
+ if (attr != NULL && DW_STRING (attr) != NULL)
+ return DW_STRING (attr);
+ return CP_ANONYMOUS_NAMESPACE_STR;
+
case DW_TAG_subprogram:
/* Java constructors will all be named "<init>", so return
the class name when we see this special case. */
or simply "<anonymous struct>" or "<anonymous union>" in GCC 4.3
and GCC 4.4. We work around this problem by ignoring these. */
if (attr && DW_STRING (attr)
- && (strncmp (DW_STRING (attr), "._", 2) == 0
- || strncmp (DW_STRING (attr), "<anonymous", 10) == 0))
+ && (startswith (DW_STRING (attr), "._")
+ || startswith (DW_STRING (attr), "<anonymous")))
return NULL;
/* GCC might emit a nameless typedef that has a linkage name. See
{
struct file_entry *fe = &lh->file_names[file - 1];
- if (IS_ABSOLUTE_PATH (fe->name) || fe->dir_index == 0)
+ if (IS_ABSOLUTE_PATH (fe->name) || fe->dir_index == 0
+ || lh->include_dirs == NULL)
return xstrdup (fe->name);
return concat (lh->include_dirs[fe->dir_index - 1], SLASH_STRING,
fe->name, NULL);
while (per_cu != NULL)
{
per_cu->cu->last_used ++;
- if (per_cu->cu->last_used <= dwarf2_max_cache_age)
+ if (per_cu->cu->last_used <= dwarf_max_cache_age)
dwarf2_mark (per_cu->cu);
per_cu = per_cu->cu->read_in_chain;
}
if (need_gnat_info (cu)
&& TYPE_CODE (type) != TYPE_CODE_FUNC
&& TYPE_CODE (type) != TYPE_CODE_FLT
+ && TYPE_CODE (type) != TYPE_CODE_METHODPTR
+ && TYPE_CODE (type) != TYPE_CODE_MEMBERPTR
+ && TYPE_CODE (type) != TYPE_CODE_METHOD
&& !HAVE_GNAT_AUX_INFO (type))
INIT_GNAT_SPECIFIC (type);
/* Read DW_AT_data_location and set in type. */
attr = dwarf2_attr (die, DW_AT_data_location, cu);
if (attr_to_dynamic_prop (attr, die, cu, &prop))
- {
- TYPE_DATA_LOCATION (type)
- = obstack_alloc (&objfile->objfile_obstack, sizeof (prop));
- *TYPE_DATA_LOCATION (type) = prop;
- }
+ add_dyn_prop (DYN_PROP_DATA_LOCATION, prop, type, objfile);
if (dwarf2_per_objfile->die_type_hash == NULL)
{
return part_die_lhs->offset.sect_off == part_die_rhs->offset.sect_off;
}
-static struct cmd_list_element *set_dwarf2_cmdlist;
-static struct cmd_list_element *show_dwarf2_cmdlist;
+static struct cmd_list_element *set_dwarf_cmdlist;
+static struct cmd_list_element *show_dwarf_cmdlist;
static void
-set_dwarf2_cmd (char *args, int from_tty)
+set_dwarf_cmd (char *args, int from_tty)
{
- help_list (set_dwarf2_cmdlist, "maintenance set dwarf2 ", all_commands,
+ help_list (set_dwarf_cmdlist, "maintenance set dwarf ", all_commands,
gdb_stdout);
}
static void
-show_dwarf2_cmd (char *args, int from_tty)
+show_dwarf_cmd (char *args, int from_tty)
{
- cmd_show_list (show_dwarf2_cmdlist, from_tty, "");
+ cmd_show_list (show_dwarf_cmdlist, from_tty, "");
}
/* Free data associated with OBJFILE, if necessary. */
dwarf2_per_objfile = objfile_data (objfile, dwarf2_objfile_data_key);
if (dwarf2_per_objfile)
{
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
write_psymtabs_to_index (objfile, arg);
}
- if (except.reason < 0)
- exception_fprintf (gdb_stderr, except,
- _("Error while writing index for `%s': "),
- objfile_name (objfile));
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ exception_fprintf (gdb_stderr, except,
+ _("Error while writing index for `%s': "),
+ objfile_name (objfile));
+ }
+ END_CATCH
}
}
}
\f
-int dwarf2_always_disassemble;
+int dwarf_always_disassemble;
static void
-show_dwarf2_always_disassemble (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
+show_dwarf_always_disassemble (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file,
_("Whether to always disassemble "
dwarf2_objfile_data_key
= register_objfile_data_with_cleanup (NULL, dwarf2_per_objfile_free);
- add_prefix_cmd ("dwarf2", class_maintenance, set_dwarf2_cmd, _("\
-Set DWARF 2 specific variables.\n\
-Configure DWARF 2 variables such as the cache size"),
- &set_dwarf2_cmdlist, "maintenance set dwarf2 ",
+ add_prefix_cmd ("dwarf", class_maintenance, set_dwarf_cmd, _("\
+Set DWARF specific variables.\n\
+Configure DWARF variables such as the cache size"),
+ &set_dwarf_cmdlist, "maintenance set dwarf ",
0/*allow-unknown*/, &maintenance_set_cmdlist);
- add_prefix_cmd ("dwarf2", class_maintenance, show_dwarf2_cmd, _("\
-Show DWARF 2 specific variables\n\
-Show DWARF 2 variables such as the cache size"),
- &show_dwarf2_cmdlist, "maintenance show dwarf2 ",
+ add_prefix_cmd ("dwarf", class_maintenance, show_dwarf_cmd, _("\
+Show DWARF specific variables\n\
+Show DWARF variables such as the cache size"),
+ &show_dwarf_cmdlist, "maintenance show dwarf ",
0/*allow-unknown*/, &maintenance_show_cmdlist);
add_setshow_zinteger_cmd ("max-cache-age", class_obscure,
- &dwarf2_max_cache_age, _("\
-Set the upper bound on the age of cached dwarf2 compilation units."), _("\
-Show the upper bound on the age of cached dwarf2 compilation units."), _("\
+ &dwarf_max_cache_age, _("\
+Set the upper bound on the age of cached DWARF compilation units."), _("\
+Show the upper bound on the age of cached DWARF compilation units."), _("\
A higher limit means that cached compilation units will be stored\n\
in memory longer, and more total memory will be used. Zero disables\n\
caching, which can slow down startup."),
NULL,
- show_dwarf2_max_cache_age,
- &set_dwarf2_cmdlist,
- &show_dwarf2_cmdlist);
+ show_dwarf_max_cache_age,
+ &set_dwarf_cmdlist,
+ &show_dwarf_cmdlist);
add_setshow_boolean_cmd ("always-disassemble", class_obscure,
- &dwarf2_always_disassemble, _("\
+ &dwarf_always_disassemble, _("\
Set whether `info address' always disassembles DWARF expressions."), _("\
Show whether `info address' always disassembles DWARF expressions."), _("\
When enabled, DWARF expressions are always printed in an assembly-like\n\
syntax. When disabled, expressions will be printed in a more\n\
conversational style, when possible."),
NULL,
- show_dwarf2_always_disassemble,
- &set_dwarf2_cmdlist,
- &show_dwarf2_cmdlist);
-
- add_setshow_zuinteger_cmd ("dwarf2-read", no_class, &dwarf2_read_debug, _("\
-Set debugging of the dwarf2 reader."), _("\
-Show debugging of the dwarf2 reader."), _("\
-When enabled (non-zero), debugging messages are printed during dwarf2\n\
+ show_dwarf_always_disassemble,
+ &set_dwarf_cmdlist,
+ &show_dwarf_cmdlist);
+
+ add_setshow_zuinteger_cmd ("dwarf-read", no_class, &dwarf_read_debug, _("\
+Set debugging of the DWARF reader."), _("\
+Show debugging of the DWARF reader."), _("\
+When enabled (non-zero), debugging messages are printed during DWARF\n\
reading and symtab expansion. A value of 1 (one) provides basic\n\
information. A value greater than 1 provides more verbose information."),
NULL,
NULL,
&setdebuglist, &showdebuglist);
- add_setshow_zuinteger_cmd ("dwarf2-die", no_class, &dwarf2_die_debug, _("\
-Set debugging of the dwarf2 DIE reader."), _("\
-Show debugging of the dwarf2 DIE reader."), _("\
+ add_setshow_zuinteger_cmd ("dwarf-die", no_class, &dwarf_die_debug, _("\
+Set debugging of the DWARF DIE reader."), _("\
+Show debugging of the DWARF DIE reader."), _("\
When enabled (non-zero), DIEs are dumped after they are read in.\n\
The value is the maximum depth to print."),
NULL,
NULL,
&setdebuglist, &showdebuglist);
+ add_setshow_zuinteger_cmd ("dwarf-line", no_class, &dwarf_line_debug, _("\
+Set debugging of the dwarf line reader."), _("\
+Show debugging of the dwarf line reader."), _("\
+When enabled (non-zero), line number entries are dumped as they are read in.\n\
+A value of 1 (one) provides basic information.\n\
+A value greater than 1 provides more verbose information."),
+ NULL,
+ NULL,
+ &setdebuglist, &showdebuglist);
+
add_setshow_boolean_cmd ("check-physname", no_class, &check_physname, _("\
Set cross-checking of \"physname\" code against demangler."), _("\
Show cross-checking of \"physname\" code against demangler."), _("\
projects / deliverable / binutils-gdb.git / blobdiff