/* DWARF 2 debugging format support for GDB.
Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Adapted by Gary Funck (gary@intrepid.com), Intrepid Technology,
const gdb_byte *address_table;
/* Size of the address table data in bytes. */
offset_type address_table_size;
- /* The hash table. */
- const offset_type *index_table;
+ /* The symbol table, implemented as a hash table. */
+ const offset_type *symbol_table;
/* Size in slots, each slot is 2 offset_types. */
- offset_type index_table_slots;
+ offset_type symbol_table_slots;
/* A pointer to the constant pool. */
const char *constant_pool;
};
VMA of 0. */
int has_section_at_zero;
- /* True if we are using the mapped index. */
+ /* True if we are using the mapped index,
+ or we are faking it for OBJF_READNOW's sake. */
unsigned char using_index;
- /* The mapped index. */
+ /* The mapped index, or NULL if .gdb_index is missing or not being used. */
struct mapped_index *index_table;
+ /* When using index_table, this keeps track of all quick_file_names entries.
+ TUs can share line table entries with CUs or other TUs, and there can be
+ a lot more TUs than unique line tables, so we maintain a separate table
+ of all line table entries to support the sharing. */
+ htab_t quick_file_names_table;
+
/* Set during partial symbol reading, to prevent queueing of full
symbols. */
int reading_partial_symbols;
/* local data types */
-/* We hold several abbreviation tables in memory at the same time. */
+/* We hold several abbreviation tables in memory at the same time. */
#ifndef ABBREV_HASH_SIZE
#define ABBREV_HASH_SIZE 121
#endif
unsigned int has_namespace_info : 1;
};
-/* When using the index (and thus not using psymtabs), each CU has an
- object of this type. This is used to hold information needed by
- the various "quick" methods. */
-struct dwarf2_per_cu_quick_data
-{
- /* The line table. This can be NULL if there was no line table. */
- struct line_header *lines;
-
- /* The file names from the line table. */
- const char **file_names;
- /* The file names from the line table after being run through
- gdb_realpath. */
- const char **full_names;
-
- /* The corresponding symbol table. This is NULL if symbols for this
- CU have not yet been read. */
- struct symtab *symtab;
-
- /* A temporary mark bit used when iterating over all CUs in
- expand_symtabs_matching. */
- unsigned int mark : 1;
-
- /* True if we've tried to read the line table. */
- unsigned int read_lines : 1;
-};
-
/* Persistent data held for a compilation unit, even when not
processing it. We put a pointer to this structure in the
read_symtab_private field of the psymtab. If we encounter
struct dwarf2_per_cu_data per_cu;
};
-/* Struct used to pass misc. parameters to read_die_and_children, et. al.
- which are used for both .debug_info and .debug_types dies.
- All parameters here are unchanging for the life of the call.
- This struct exists to abstract away the constant parameters of
- die reading. */
+/* Struct used to pass misc. parameters to read_die_and_children, et
+ al. which are used for both .debug_info and .debug_types dies.
+ All parameters here are unchanging for the life of the call. This
+ struct exists to abstract away the constant parameters of die
+ reading. */
struct die_reader_specs
{
};
/* When we construct a partial symbol table entry we only
- need this much information. */
+ need this much information. */
struct partial_die_info
{
/* Offset of this DIE. */
struct partial_die_info *die_parent, *die_child, *die_sibling;
};
-/* This data structure holds the information of an abbrev. */
+/* This data structure holds the information of an abbrev. */
struct abbrev_info
{
unsigned int number; /* number identifying abbrev */
ENUM_BITFIELD(dwarf_form) form : 16;
};
-/* Attributes have a name and a value */
+/* Attributes have a name and a value. */
struct attribute
{
ENUM_BITFIELD(dwarf_attribute) name : 16;
u;
};
-/* This data structure holds a complete die structure. */
+/* This data structure holds a complete die structure. */
struct die_info
{
/* DWARF-2 tag for this DIE. */
struct function_range *next;
};
-/* Get at parts of an attribute structure */
+/* Get at parts of an attribute structure. */
#define DW_STRING(attr) ((attr)->u.str)
#define DW_STRING_IS_CANONICAL(attr) ((attr)->string_is_canonical)
#define DW_ADDR(attr) ((attr)->u.addr)
#define DW_SIGNATURED_TYPE(attr) ((attr)->u.signatured_type)
-/* Blocks are a bunch of untyped bytes. */
+/* Blocks are a bunch of untyped bytes. */
struct dwarf_block
{
unsigned int size;
in an instance of a field_info structure, as defined below. */
struct field_info
{
- /* List of data member and baseclasses fields. */
+ /* List of data member and baseclasses fields. */
struct nextfield
{
struct nextfield *next;
show_dwarf2_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"),
+ fprintf_filtered (file, _("The upper bound on the age of cached "
+ "dwarf2 compilation units is %s.\n"),
value);
}
-/* Various complaints about symbol reading that don't abort the process */
+/* Various complaints about symbol reading that don't abort the process. */
static void
dwarf2_statement_list_fits_in_line_number_section_complaint (void)
dwarf2_debug_line_missing_end_sequence_complaint (void)
{
complaint (&symfile_complaints,
- _(".debug_line section has line program sequence without an end"));
+ _(".debug_line section has line "
+ "program sequence without an end"));
}
static void
int arg3)
{
complaint (&symfile_complaints,
- _("const value length mismatch for '%s', got %d, expected %d"), arg1,
- arg2, arg3);
+ _("const value length mismatch for '%s', got %d, expected %d"),
+ arg1, arg2, arg3);
}
static void
dwarf2_macro_malformed_definition_complaint (const char *arg1)
{
complaint (&symfile_complaints,
- _("macro debug info contains a malformed macro definition:\n`%s'"),
+ _("macro debug info contains a "
+ "malformed macro definition:\n`%s'"),
arg1);
}
dwarf2_invalid_attrib_class_complaint (const char *arg1, const char *arg2)
{
complaint (&symfile_complaints,
- _("invalid attribute class or form for '%s' in '%s'"), arg1, arg2);
+ _("invalid attribute class or form for '%s' in '%s'"),
+ arg1, arg2);
}
/* local function prototypes */
static int need_gnat_info (struct dwarf2_cu *);
-static struct type *die_descriptive_type (struct die_info *, struct dwarf2_cu *);
+static struct type *die_descriptive_type (struct die_info *,
+ struct dwarf2_cu *);
static void set_descriptive_type (struct type *, struct die_info *,
struct dwarf2_cu *);
struct dwarf2_cu *);
static void dwarf2_attach_fn_fields_to_type (struct field_info *,
- struct type *, struct dwarf2_cu *);
+ struct type *,
+ struct dwarf2_cu *);
static void process_structure_scope (struct die_info *, struct dwarf2_cu *);
static int attr_form_is_constant (struct attribute *);
+static void fill_in_loclist_baton (struct dwarf2_cu *cu,
+ struct dwarf2_loclist_baton *baton,
+ struct attribute *attr);
+
static void dwarf2_symbol_mark_computed (struct attribute *attr,
struct symbol *sym,
struct dwarf2_cu *cu);
static struct dwarf2_per_cu_data *dwarf2_find_comp_unit
(unsigned int offset, struct objfile *objfile);
-static struct dwarf2_cu *alloc_one_comp_unit (struct objfile *objfile);
+static void init_one_comp_unit (struct dwarf2_cu *cu,
+ struct objfile *objfile);
+
+static void prepare_one_comp_unit (struct dwarf2_cu *cu,
+ struct die_info *comp_unit_die);
static void free_one_comp_unit (void *);
int header_size = 12;
if (bfd_seek (abfd, sectp->filepos, SEEK_SET) != 0
- || bfd_bread (compressed_buffer, compressed_size, abfd) != compressed_size)
+ || bfd_bread (compressed_buffer,
+ compressed_size, abfd) != compressed_size)
error (_("Dwarf Error: Can't read DWARF data from '%s'"),
bfd_get_filename (abfd));
#endif
}
+/* A helper function that decides whether a section is empty. */
+
+static int
+dwarf2_section_empty_p (struct dwarf2_section_info *info)
+{
+ return info->asection == NULL || info->size == 0;
+}
+
/* Read the contents of the section SECTP from object file specified by
OBJFILE, store info about the section into INFO.
If the section is compressed, uncompress it before returning. */
info->was_mmapped = 0;
info->readin = 1;
- if (info->asection == NULL || info->size == 0)
+ if (dwarf2_section_empty_p (info))
return;
/* Check if the file has a 4-byte header indicating compression. */
bfd_get_filename (abfd));
}
+/* A helper function that returns the size of a section in a safe way.
+ If you are positive that the section has been read before using the
+ size, then it is safe to refer to the dwarf2_section_info object's
+ "size" field directly. In other cases, you must call this
+ function, because for compressed sections the size field is not set
+ correctly until the section has been read. */
+
+static bfd_size_type
+dwarf2_section_size (struct objfile *objfile,
+ struct dwarf2_section_info *info)
+{
+ if (!info->readin)
+ dwarf2_read_section (objfile, info);
+ return info->size;
+}
+
/* Fill in SECTP, BUFP and SIZEP with section info, given OBJFILE and
- SECTION_NAME. */
+ SECTION_NAME. */
void
dwarf2_get_section_info (struct objfile *objfile, const char *section_name,
else
gdb_assert_not_reached ("unexpected section");
- if (info->asection != NULL && info->size != 0 && info->buffer == NULL)
- /* We haven't read this section in yet. Do it now. */
- dwarf2_read_section (objfile, info);
+ dwarf2_read_section (objfile, info);
*sectp = info->asection;
*bufp = info->buffer;
}
\f
+/* DWARF quick_symbols_functions support. */
+
+/* TUs can share .debug_line entries, and there can be a lot more TUs than
+ unique line tables, so we maintain a separate table of all .debug_line
+ derived entries to support the sharing.
+ All the quick functions need is the list of file names. We discard the
+ line_header when we're done and don't need to record it here. */
+struct quick_file_names
+{
+ /* The offset in .debug_line of the line table. We hash on this. */
+ unsigned int offset;
+
+ /* The number of entries in file_names, real_names. */
+ unsigned int num_file_names;
+
+ /* The file names from the line table, after being run through
+ file_full_name. */
+ const char **file_names;
+
+ /* The file names from the line table after being run through
+ gdb_realpath. These are computed lazily. */
+ const char **real_names;
+};
+
+/* When using the index (and thus not using psymtabs), each CU has an
+ object of this type. This is used to hold information needed by
+ the various "quick" methods. */
+struct dwarf2_per_cu_quick_data
+{
+ /* The file table. This can be NULL if there was no file table
+ or it's currently not read in.
+ NOTE: This points into dwarf2_per_objfile->quick_file_names_table. */
+ struct quick_file_names *file_names;
+
+ /* The corresponding symbol table. This is NULL if symbols for this
+ CU have not yet been read. */
+ struct symtab *symtab;
+
+ /* A temporary mark bit used when iterating over all CUs in
+ expand_symtabs_matching. */
+ unsigned int mark : 1;
+
+ /* True if we've tried to read the file table and found there isn't one.
+ There will be no point in trying to read it again next time. */
+ unsigned int no_file_data : 1;
+};
+
+/* Hash function for a quick_file_names. */
+
+static hashval_t
+hash_file_name_entry (const void *e)
+{
+ const struct quick_file_names *file_data = e;
+
+ return file_data->offset;
+}
+
+/* Equality function for a quick_file_names. */
+
+static int
+eq_file_name_entry (const void *a, const void *b)
+{
+ const struct quick_file_names *ea = a;
+ const struct quick_file_names *eb = b;
+
+ return ea->offset == eb->offset;
+}
+
+/* Delete function for a quick_file_names. */
+
+static void
+delete_file_name_entry (void *e)
+{
+ struct quick_file_names *file_data = e;
+ int i;
+
+ for (i = 0; i < file_data->num_file_names; ++i)
+ {
+ xfree ((void*) file_data->file_names[i]);
+ if (file_data->real_names)
+ xfree ((void*) file_data->real_names[i]);
+ }
+
+ /* The space for the struct itself lives on objfile_obstack,
+ so we don't free it here. */
+}
+
+/* Create a quick_file_names hash table. */
+
+static htab_t
+create_quick_file_names_table (unsigned int nr_initial_entries)
+{
+ return htab_create_alloc (nr_initial_entries,
+ hash_file_name_entry, eq_file_name_entry,
+ delete_file_name_entry, xcalloc, xfree);
+}
/* Read in the symbols for PER_CU. OBJFILE is the objfile from which
this CU came. */
offset_type hash = mapped_index_string_hash (name);
offset_type slot, step;
- slot = hash & (index->index_table_slots - 1);
- step = ((hash * 17) & (index->index_table_slots - 1)) | 1;
+ slot = hash & (index->symbol_table_slots - 1);
+ step = ((hash * 17) & (index->symbol_table_slots - 1)) | 1;
for (;;)
{
/* Convert a slot number to an offset into the table. */
offset_type i = 2 * slot;
const char *str;
- if (index->index_table[i] == 0 && index->index_table[i + 1] == 0)
+ if (index->symbol_table[i] == 0 && index->symbol_table[i + 1] == 0)
return 0;
- str = index->constant_pool + MAYBE_SWAP (index->index_table[i]);
+ str = index->constant_pool + MAYBE_SWAP (index->symbol_table[i]);
if (!strcmp (name, str))
{
*vec_out = (offset_type *) (index->constant_pool
- + MAYBE_SWAP (index->index_table[i + 1]));
+ + MAYBE_SWAP (index->symbol_table[i + 1]));
return 1;
}
- slot = (slot + step) & (index->index_table_slots - 1);
+ slot = (slot + step) & (index->symbol_table_slots - 1);
}
}
offset_type types_list_elements = 0;
int i;
- if (dwarf2_per_objfile->gdb_index.asection == NULL
- || dwarf2_per_objfile->gdb_index.size == 0)
+ if (dwarf2_section_empty_p (&dwarf2_per_objfile->gdb_index))
return 0;
/* Older elfutils strip versions could keep the section in the main
/* Version check. */
version = MAYBE_SWAP (*(offset_type *) addr);
/* Versions earlier than 3 emitted every copy of a psymbol. This
- causes the index to behave very poorly for certain requests. So,
- it seems better to just ignore such indices. */
- if (version < 3)
+ causes the index to behave very poorly for certain requests. Version 4
+ contained incomplete addrmap. So, it seems better to just ignore such
+ indices. */
+ if (version < 4)
+ return 0;
+ /* Indexes with higher version than the one supported by GDB may be no
+ longer backward compatible. */
+ if (version > 4)
return 0;
map = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct mapped_index);
- MAYBE_SWAP (metadata[i]));
++i;
- map->index_table = (offset_type *) (addr + MAYBE_SWAP (metadata[i]));
- map->index_table_slots = ((MAYBE_SWAP (metadata[i + 1])
- - MAYBE_SWAP (metadata[i]))
- / (2 * sizeof (offset_type)));
+ map->symbol_table = (offset_type *) (addr + MAYBE_SWAP (metadata[i]));
+ map->symbol_table_slots = ((MAYBE_SWAP (metadata[i + 1])
+ - MAYBE_SWAP (metadata[i]))
+ / (2 * sizeof (offset_type)));
++i;
map->constant_pool = addr + MAYBE_SWAP (metadata[i]);
dwarf2_per_objfile->index_table = map;
dwarf2_per_objfile->using_index = 1;
+ dwarf2_per_objfile->quick_file_names_table =
+ create_quick_file_names_table (dwarf2_per_objfile->n_comp_units);
return 1;
}
/* A helper for the "quick" functions which attempts to read the line
table for THIS_CU. */
-static void
-dw2_require_line_header (struct objfile *objfile,
- struct dwarf2_per_cu_data *this_cu)
+static struct quick_file_names *
+dw2_get_file_names (struct objfile *objfile,
+ struct dwarf2_per_cu_data *this_cu)
{
bfd *abfd = objfile->obfd;
- struct line_header *lh = NULL;
+ struct line_header *lh;
struct attribute *attr;
struct cleanup *cleanups;
struct die_info *comp_unit_die;
unsigned int bytes_read, buffer_size;
struct die_reader_specs reader_specs;
char *name, *comp_dir;
+ void **slot;
+ struct quick_file_names *qfn;
+ unsigned int line_offset;
- if (this_cu->v.quick->read_lines)
- return;
- this_cu->v.quick->read_lines = 1;
-
- memset (&cu, 0, sizeof (cu));
- cu.objfile = objfile;
- obstack_init (&cu.comp_unit_obstack);
+ if (this_cu->v.quick->file_names != NULL)
+ return this_cu->v.quick->file_names;
+ /* If we know there is no line data, no point in looking again. */
+ if (this_cu->v.quick->no_file_data)
+ return NULL;
+ init_one_comp_unit (&cu, objfile);
cleanups = make_cleanup (free_stack_comp_unit, &cu);
if (this_cu->from_debug_types)
if (this_cu->from_debug_types)
info_ptr += 8 /*signature*/ + cu.header.offset_size;
init_cu_die_reader (&reader_specs, &cu);
- info_ptr = read_full_die (&reader_specs, &comp_unit_die, info_ptr,
- &has_children);
+ read_full_die (&reader_specs, &comp_unit_die, info_ptr,
+ &has_children);
+ lh = NULL;
+ slot = NULL;
+ line_offset = 0;
attr = dwarf2_attr (comp_unit_die, DW_AT_stmt_list, &cu);
if (attr)
{
- unsigned int line_offset = DW_UNSND (attr);
+ struct quick_file_names find_entry;
+
+ line_offset = DW_UNSND (attr);
+
+ /* We may have already read in this line header (TU line header sharing).
+ If we have we're done. */
+ find_entry.offset = line_offset;
+ slot = htab_find_slot (dwarf2_per_objfile->quick_file_names_table,
+ &find_entry, INSERT);
+ if (*slot != NULL)
+ {
+ do_cleanups (cleanups);
+ this_cu->v.quick->file_names = *slot;
+ return *slot;
+ }
+
lh = dwarf_decode_line_header (line_offset, abfd, &cu);
}
if (lh == NULL)
{
do_cleanups (cleanups);
- return;
+ this_cu->v.quick->no_file_data = 1;
+ return NULL;
}
- find_file_and_directory (comp_unit_die, &cu, &name, &comp_dir);
+ qfn = obstack_alloc (&objfile->objfile_obstack, sizeof (*qfn));
+ qfn->offset = line_offset;
+ gdb_assert (slot != NULL);
+ *slot = qfn;
- this_cu->v.quick->lines = lh;
+ find_file_and_directory (comp_unit_die, &cu, &name, &comp_dir);
- this_cu->v.quick->file_names
- = obstack_alloc (&objfile->objfile_obstack,
- lh->num_file_names * sizeof (char *));
+ qfn->num_file_names = lh->num_file_names;
+ qfn->file_names = obstack_alloc (&objfile->objfile_obstack,
+ lh->num_file_names * sizeof (char *));
for (i = 0; i < lh->num_file_names; ++i)
- this_cu->v.quick->file_names[i] = file_full_name (i + 1, lh, comp_dir);
+ qfn->file_names[i] = file_full_name (i + 1, lh, comp_dir);
+ qfn->real_names = NULL;
+ free_line_header (lh);
do_cleanups (cleanups);
+
+ this_cu->v.quick->file_names = qfn;
+ return qfn;
}
/* A helper for the "quick" functions which computes and caches the
- real path for a given file name from the line table.
- dw2_require_line_header must have been called before this is
- invoked. */
+ real path for a given file name from the line table. */
static const char *
-dw2_require_full_path (struct objfile *objfile,
- struct dwarf2_per_cu_data *per_cu,
- int index)
+dw2_get_real_path (struct objfile *objfile,
+ struct quick_file_names *qfn, int index)
{
- if (!per_cu->v.quick->full_names)
- per_cu->v.quick->full_names
- = OBSTACK_CALLOC (&objfile->objfile_obstack,
- per_cu->v.quick->lines->num_file_names,
- sizeof (char *));
+ if (qfn->real_names == NULL)
+ qfn->real_names = OBSTACK_CALLOC (&objfile->objfile_obstack,
+ qfn->num_file_names, sizeof (char *));
- if (!per_cu->v.quick->full_names[index])
- per_cu->v.quick->full_names[index]
- = gdb_realpath (per_cu->v.quick->file_names[index]);
+ if (qfn->real_names[index] == NULL)
+ qfn->real_names[index] = gdb_realpath (qfn->file_names[index]);
- return per_cu->v.quick->full_names[index];
+ return qfn->real_names[index];
}
static struct symtab *
dw2_find_last_source_symtab (struct objfile *objfile)
{
int index;
+
dw2_setup (objfile);
index = dwarf2_per_objfile->n_comp_units - 1;
return dw2_instantiate_symtab (objfile, dw2_get_cu (index));
}
-static void
-dw2_forget_cached_source_info (struct objfile *objfile)
+/* Traversal function for dw2_forget_cached_source_info. */
+
+static int
+dw2_free_cached_file_names (void **slot, void *info)
{
- int i;
+ struct quick_file_names *file_data = (struct quick_file_names *) *slot;
- dw2_setup (objfile);
- for (i = 0; i < (dwarf2_per_objfile->n_comp_units
- + dwarf2_per_objfile->n_type_comp_units); ++i)
+ if (file_data->real_names)
{
- struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
+ int i;
- if (per_cu->v.quick->full_names)
+ for (i = 0; i < file_data->num_file_names; ++i)
{
- int j;
-
- for (j = 0; j < per_cu->v.quick->lines->num_file_names; ++j)
- xfree ((void *) per_cu->v.quick->full_names[j]);
+ xfree ((void*) file_data->real_names[i]);
+ file_data->real_names[i] = NULL;
}
}
+
+ return 1;
+}
+
+static void
+dw2_forget_cached_source_info (struct objfile *objfile)
+{
+ dw2_setup (objfile);
+
+ htab_traverse_noresize (dwarf2_per_objfile->quick_file_names_table,
+ dw2_free_cached_file_names, NULL);
}
static int
struct dwarf2_per_cu_data *base_cu = NULL;
dw2_setup (objfile);
+
for (i = 0; i < (dwarf2_per_objfile->n_comp_units
+ dwarf2_per_objfile->n_type_comp_units); ++i)
{
int j;
struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
+ struct quick_file_names *file_data;
if (per_cu->v.quick->symtab)
continue;
- dw2_require_line_header (objfile, per_cu);
- if (!per_cu->v.quick->lines)
+ file_data = dw2_get_file_names (objfile, per_cu);
+ if (file_data == NULL)
continue;
- for (j = 0; j < per_cu->v.quick->lines->num_file_names; ++j)
+ for (j = 0; j < file_data->num_file_names; ++j)
{
- const char *this_name = per_cu->v.quick->file_names[j];
+ const char *this_name = file_data->file_names[j];
if (FILENAME_CMP (name, this_name) == 0)
{
if (full_path != NULL)
{
- const char *this_full_name = dw2_require_full_path (objfile,
- per_cu, j);
+ const char *this_real_name = dw2_get_real_path (objfile,
+ file_data, j);
- if (this_full_name
- && FILENAME_CMP (full_path, this_full_name) == 0)
+ if (this_real_name != NULL
+ && FILENAME_CMP (full_path, this_real_name) == 0)
{
*result = dw2_instantiate_symtab (objfile, per_cu);
return 1;
if (real_path != NULL)
{
- const char *this_full_name = dw2_require_full_path (objfile,
- per_cu, j);
+ const char *this_real_name = dw2_get_real_path (objfile,
+ file_data, j);
- if (this_full_name != NULL)
+ if (this_real_name != NULL
+ && FILENAME_CMP (real_path, this_real_name) == 0)
{
- char *rp = gdb_realpath (this_full_name);
- if (rp != NULL && FILENAME_CMP (real_path, rp) == 0)
- {
- xfree (rp);
- *result = dw2_instantiate_symtab (objfile, per_cu);
- return 1;
- }
- xfree (rp);
+ *result = dw2_instantiate_symtab (objfile, per_cu);
+ return 1;
}
}
}
{
dw2_setup (objfile);
+ /* index_table is NULL if OBJF_READNOW. */
if (dwarf2_per_objfile->index_table)
{
offset_type *vec;
int i;
dw2_setup (objfile);
- for (i = 0; i < (dwarf2_per_objfile->n_comp_units
- + dwarf2_per_objfile->n_type_comp_units); ++i)
+
+ /* We don't need to consider type units here.
+ This is only called for examining code, e.g. expand_line_sal.
+ There can be an order of magnitude (or more) more type units
+ than comp units, and we avoid them if we can. */
+
+ for (i = 0; i < dwarf2_per_objfile->n_comp_units; ++i)
{
int j;
struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
+ struct quick_file_names *file_data;
if (per_cu->v.quick->symtab)
continue;
- dw2_require_line_header (objfile, per_cu);
- if (!per_cu->v.quick->lines)
+ file_data = dw2_get_file_names (objfile, per_cu);
+ if (file_data == NULL)
continue;
- for (j = 0; j < per_cu->v.quick->lines->num_file_names; ++j)
+ for (j = 0; j < file_data->num_file_names; ++j)
{
- const char *this_name = per_cu->v.quick->file_names[j];
- if (strcmp (this_name, filename) == 0)
+ const char *this_name = file_data->file_names[j];
+ if (FILENAME_CMP (this_name, filename) == 0)
{
dw2_instantiate_symtab (objfile, per_cu);
break;
{
struct dwarf2_per_cu_data *per_cu;
offset_type *vec;
+ struct quick_file_names *file_data;
dw2_setup (objfile);
+ /* index_table is NULL if OBJF_READNOW. */
if (!dwarf2_per_objfile->index_table)
return NULL;
/* vec[0] is the length, which must always be >0. */
per_cu = dw2_get_cu (MAYBE_SWAP (vec[1]));
- dw2_require_line_header (objfile, per_cu);
- if (!per_cu->v.quick->lines)
+ file_data = dw2_get_file_names (objfile, per_cu);
+ if (file_data == NULL)
return NULL;
- return per_cu->v.quick->file_names[per_cu->v.quick->lines->num_file_names - 1];
+ return file_data->file_names[file_data->num_file_names - 1];
}
static void
-dw2_map_ada_symtabs (struct objfile *objfile,
- int (*wild_match) (const char *, const char *),
- int (*is_name_suffix) (const char *),
- void (*callback) (struct objfile *,
- struct symtab *, void *),
- const char *name, int global,
- domain_enum namespace, int wild,
- void *data)
+dw2_map_matching_symbols (const char * name, domain_enum namespace,
+ struct objfile *objfile, int global,
+ int (*callback) (struct block *,
+ struct symbol *, void *),
+ void *data, symbol_compare_ftype *match,
+ symbol_compare_ftype *ordered_compare)
{
- /* For now, we don't support Ada. Still the function can be called if the
+ /* Currently unimplemented; used for Ada. The function can be called if the
current language is Ada for a non-Ada objfile using GNU index. As Ada
does not look for non-Ada symbols this function should just return. */
}
struct mapped_index *index;
dw2_setup (objfile);
+
+ /* index_table is NULL if OBJF_READNOW. */
if (!dwarf2_per_objfile->index_table)
return;
index = dwarf2_per_objfile->index_table;
{
int j;
struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
+ struct quick_file_names *file_data;
per_cu->v.quick->mark = 0;
if (per_cu->v.quick->symtab)
continue;
- dw2_require_line_header (objfile, per_cu);
- if (!per_cu->v.quick->lines)
+ file_data = dw2_get_file_names (objfile, per_cu);
+ if (file_data == NULL)
continue;
- for (j = 0; j < per_cu->v.quick->lines->num_file_names; ++j)
+ for (j = 0; j < file_data->num_file_names; ++j)
{
- if (file_matcher (per_cu->v.quick->file_names[j], data))
+ if (file_matcher (file_data->file_names[j], data))
{
per_cu->v.quick->mark = 1;
break;
}
}
- for (iter = 0; iter < index->index_table_slots; ++iter)
+ for (iter = 0; iter < index->symbol_table_slots; ++iter)
{
offset_type idx = 2 * iter;
const char *name;
offset_type *vec, vec_len, vec_idx;
- if (index->index_table[idx] == 0 && index->index_table[idx + 1] == 0)
+ if (index->symbol_table[idx] == 0 && index->symbol_table[idx + 1] == 0)
continue;
- name = index->constant_pool + MAYBE_SWAP (index->index_table[idx]);
+ name = index->constant_pool + MAYBE_SWAP (index->symbol_table[idx]);
if (! (*name_matcher) (name, data))
continue;
/* The name was matched, now expand corresponding CUs that were
marked. */
vec = (offset_type *) (index->constant_pool
- + MAYBE_SWAP (index->index_table[idx + 1]));
+ + MAYBE_SWAP (index->symbol_table[idx + 1]));
vec_len = MAYBE_SWAP (vec[0]);
for (vec_idx = 0; vec_idx < vec_len; ++vec_idx)
{
dw2_setup (objfile);
+ /* index_table is NULL if OBJF_READNOW. */
if (!dwarf2_per_objfile->index_table)
return;
index = dwarf2_per_objfile->index_table;
- for (iter = 0; iter < index->index_table_slots; ++iter)
+ for (iter = 0; iter < index->symbol_table_slots; ++iter)
{
offset_type idx = 2 * iter;
const char *name;
offset_type *vec, vec_len, vec_idx;
- if (index->index_table[idx] == 0 && index->index_table[idx + 1] == 0)
+ if (index->symbol_table[idx] == 0 && index->symbol_table[idx + 1] == 0)
continue;
- name = (index->constant_pool + MAYBE_SWAP (index->index_table[idx]));
+ name = (index->constant_pool + MAYBE_SWAP (index->symbol_table[idx]));
(*fun) (name, data);
}
int i;
dw2_setup (objfile);
+
for (i = 0; i < (dwarf2_per_objfile->n_comp_units
+ dwarf2_per_objfile->n_type_comp_units); ++i)
{
int j;
struct dwarf2_per_cu_data *per_cu = dw2_get_cu (i);
+ struct quick_file_names *file_data;
if (per_cu->v.quick->symtab)
continue;
- dw2_require_line_header (objfile, per_cu);
- if (!per_cu->v.quick->lines)
+ file_data = dw2_get_file_names (objfile, per_cu);
+ if (file_data == NULL)
continue;
- for (j = 0; j < per_cu->v.quick->lines->num_file_names; ++j)
+ for (j = 0; j < file_data->num_file_names; ++j)
{
- const char *this_full_name = dw2_require_full_path (objfile, per_cu,
- j);
- (*fun) (per_cu->v.quick->file_names[j], this_full_name, data);
+ const char *this_real_name = dw2_get_real_path (objfile, file_data,
+ j);
+ (*fun) (file_data->file_names[j], this_real_name, data);
}
}
}
dw2_expand_all_symtabs,
dw2_expand_symtabs_with_filename,
dw2_find_symbol_file,
- dw2_map_ada_symtabs,
+ dw2_map_matching_symbols,
dw2_expand_symtabs_matching,
dw2_find_pc_sect_symtab,
dw2_map_symbol_names,
dwarf2_per_objfile->using_index = 1;
create_all_comp_units (objfile);
create_debug_types_hash_table (objfile);
+ dwarf2_per_objfile->quick_file_names_table =
+ create_quick_file_names_table (dwarf2_per_objfile->n_comp_units);
for (i = 0; i < (dwarf2_per_objfile->n_comp_units
+ dwarf2_per_objfile->n_type_comp_units); ++i)
if (dwarf2_read_index (objfile))
return 1;
- dwarf2_build_psymtabs (objfile);
return 0;
}
"(is %d, should be 2, 3, or 4) [in module %s]"), header->version,
bfd_get_filename (abfd));
- if (header->abbrev_offset >= dwarf2_per_objfile->abbrev.size)
+ if (header->abbrev_offset
+ >= dwarf2_section_size (dwarf2_per_objfile->objfile,
+ &dwarf2_per_objfile->abbrev))
error (_("Dwarf Error: bad offset (0x%lx) in compilation unit header "
"(offset 0x%lx + 6) [in module %s]"),
(long) header->abbrev_offset,
if (dwarf2_die_debug)
fprintf_unfiltered (gdb_stdlog, "Signatured types:\n");
- while (info_ptr < dwarf2_per_objfile->types.buffer + dwarf2_per_objfile->types.size)
+ while (info_ptr < dwarf2_per_objfile->types.buffer
+ + dwarf2_per_objfile->types.size)
{
unsigned int offset;
unsigned int offset_size;
> dwarf2_per_objfile->types.buffer + dwarf2_per_objfile->types.size)
{
complaint (&symfile_complaints,
- _("debug type entry runs off end of `.debug_types' section, ignored"));
+ _("debug type entry runs off end "
+ "of `.debug_types' section, ignored"));
break;
}
struct attribute *attr;
CORE_ADDR best_lowpc = 0, best_highpc = 0;
struct die_reader_specs reader_specs;
+ const char *filename;
- memset (&cu, 0, sizeof (cu));
- cu.objfile = objfile;
- obstack_init (&cu.comp_unit_obstack);
-
+ init_one_comp_unit (&cu, objfile);
back_to_inner = make_cleanup (free_stack_comp_unit, &cu);
info_ptr = partial_read_comp_unit_head (&cu.header, info_ptr,
return info_ptr;
}
- /* Set the language we're debugging. */
- attr = dwarf2_attr (comp_unit_die, DW_AT_language, &cu);
- if (attr)
- set_cu_language (DW_UNSND (attr), &cu);
- else
- set_cu_language (language_minimal, &cu);
+ prepare_one_comp_unit (&cu, comp_unit_die);
/* Allocate a new partial symbol table structure. */
attr = dwarf2_attr (comp_unit_die, DW_AT_name, &cu);
+ if (attr == NULL || !DW_STRING (attr))
+ filename = "";
+ else
+ filename = DW_STRING (attr);
pst = start_psymtab_common (objfile, objfile->section_offsets,
- (attr != NULL) ? DW_STRING (attr) : "",
+ filename,
/* TEXTLOW and TEXTHIGH are set below. */
0,
objfile->global_psymbols.next,
baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
- /* Store the function that reads in the rest of the symbol table */
+ /* Store the function that reads in the rest of the symbol table. */
pst->read_symtab = dwarf2_psymtab_to_symtab;
this_cu->v.psymtab = pst;
/* Check if comp unit has_children.
If so, read the rest of the partial symbols from this comp unit.
- If not, there's no more debug_info for this comp unit. */
+ If not, there's no more debug_info for this comp unit. */
if (has_children)
{
struct partial_die_info *first_die;
{
struct dwarf2_per_cu_data *this_cu;
- this_cu = dwarf2_find_comp_unit (info_ptr - dwarf2_per_objfile->info.buffer,
+ this_cu = dwarf2_find_comp_unit (info_ptr
+ - dwarf2_per_objfile->info.buffer,
objfile);
info_ptr = process_psymtab_comp_unit (objfile, this_cu,
struct die_info *comp_unit_die;
struct dwarf2_cu *cu;
struct cleanup *free_abbrevs_cleanup, *free_cu_cleanup = NULL;
- struct attribute *attr;
int has_children;
struct die_reader_specs reader_specs;
int read_cu = 0;
if (this_cu->cu == NULL)
{
- cu = alloc_one_comp_unit (objfile);
+ cu = xmalloc (sizeof (*cu));
+ init_one_comp_unit (cu, objfile);
read_cu = 1;
info_ptr = read_full_die (&reader_specs, &comp_unit_die, info_ptr,
&has_children);
- /* Set the language we're debugging. */
- attr = dwarf2_attr (comp_unit_die, DW_AT_language, cu);
- if (attr)
- set_cu_language (DW_UNSND (attr), cu);
- else
- set_cu_language (language_minimal, cu);
+ prepare_one_comp_unit (cu, comp_unit_die);
/* Check if comp unit has_children.
If so, read the rest of the partial symbols from this comp unit.
- If not, there's no more debug_info for this comp unit. */
+ If not, there's no more debug_info for this comp unit. */
if (has_children)
load_partial_dies (abfd, dwarf2_per_objfile->info.buffer, info_ptr, 0, cu);
all_comp_units = xmalloc (n_allocated
* sizeof (struct dwarf2_per_cu_data *));
- while (info_ptr < dwarf2_per_objfile->info.buffer + dwarf2_per_objfile->info.size)
+ while (info_ptr < dwarf2_per_objfile->info.buffer
+ + dwarf2_per_objfile->info.size)
{
unsigned int length, initial_length_size;
struct dwarf2_per_cu_data *this_cu;
if (grandparent_scope == NULL)
parent->scope = parent->name;
else
- parent->scope = typename_concat (&cu->comp_unit_obstack, grandparent_scope,
+ parent->scope = typename_concat (&cu->comp_unit_obstack,
+ grandparent_scope,
parent->name, 0, cu);
}
else if (parent->tag == DW_TAG_enumerator)
of the global scope. But in Ada, we want to be able to access
nested procedures globally. So all Ada subprograms are stored
in the global scope. */
- /*prim_record_minimal_symbol (actual_name, pdi->lowpc + baseaddr,
+ /* prim_record_minimal_symbol (actual_name, pdi->lowpc + baseaddr,
mst_text, objfile); */
- psym = add_psymbol_to_list (actual_name, strlen (actual_name),
- built_actual_name,
- VAR_DOMAIN, LOC_BLOCK,
- &objfile->global_psymbols,
- 0, pdi->lowpc + baseaddr,
- cu->language, objfile);
+ add_psymbol_to_list (actual_name, strlen (actual_name),
+ built_actual_name,
+ VAR_DOMAIN, LOC_BLOCK,
+ &objfile->global_psymbols,
+ 0, pdi->lowpc + baseaddr,
+ cu->language, objfile);
}
else
{
- /*prim_record_minimal_symbol (actual_name, pdi->lowpc + baseaddr,
+ /* prim_record_minimal_symbol (actual_name, pdi->lowpc + baseaddr,
mst_file_text, objfile); */
- psym = add_psymbol_to_list (actual_name, strlen (actual_name),
- built_actual_name,
- VAR_DOMAIN, LOC_BLOCK,
- &objfile->static_psymbols,
- 0, pdi->lowpc + baseaddr,
- cu->language, objfile);
+ add_psymbol_to_list (actual_name, strlen (actual_name),
+ built_actual_name,
+ VAR_DOMAIN, LOC_BLOCK,
+ &objfile->static_psymbols,
+ 0, pdi->lowpc + baseaddr,
+ cu->language, objfile);
}
break;
case DW_TAG_constant:
list = &objfile->global_psymbols;
else
list = &objfile->static_psymbols;
- psym = add_psymbol_to_list (actual_name, strlen (actual_name),
- built_actual_name, VAR_DOMAIN, LOC_STATIC,
- list, 0, 0, cu->language, objfile);
-
+ add_psymbol_to_list (actual_name, strlen (actual_name),
+ built_actual_name, VAR_DOMAIN, LOC_STATIC,
+ list, 0, 0, cu->language, objfile);
}
break;
case DW_TAG_variable:
table building. */
if (pdi->locdesc || pdi->has_type)
- psym = add_psymbol_to_list (actual_name, strlen (actual_name),
- built_actual_name,
- VAR_DOMAIN, LOC_STATIC,
- &objfile->global_psymbols,
- 0, addr + baseaddr,
- cu->language, objfile);
+ add_psymbol_to_list (actual_name, strlen (actual_name),
+ built_actual_name,
+ VAR_DOMAIN, LOC_STATIC,
+ &objfile->global_psymbols,
+ 0, addr + baseaddr,
+ cu->language, objfile);
}
else
{
- /* Static Variable. Skip symbols without location descriptors. */
+ /* Static Variable. Skip symbols without location descriptors. */
if (pdi->locdesc == NULL)
{
if (built_actual_name)
xfree (actual_name);
return;
}
- /*prim_record_minimal_symbol (actual_name, addr + baseaddr,
+ /* prim_record_minimal_symbol (actual_name, addr + baseaddr,
mst_file_data, objfile); */
- psym = add_psymbol_to_list (actual_name, strlen (actual_name),
- built_actual_name,
- VAR_DOMAIN, LOC_STATIC,
- &objfile->static_psymbols,
- 0, addr + baseaddr,
- cu->language, objfile);
+ add_psymbol_to_list (actual_name, strlen (actual_name),
+ built_actual_name,
+ VAR_DOMAIN, LOC_STATIC,
+ &objfile->static_psymbols,
+ 0, addr + baseaddr,
+ cu->language, objfile);
}
break;
case DW_TAG_typedef:
abbrev = dwarf2_lookup_abbrev (abbrev_number, cu);
if (!abbrev)
{
- error (_("Dwarf Error: Could not find abbrev number %d [in module %s]"), abbrev_number,
- bfd_get_filename (abfd));
+ error (_("Dwarf Error: Could not find abbrev number %d [in module %s]"),
+ abbrev_number, bfd_get_filename (abfd));
}
return abbrev;
read_attribute (&attr, &abbrev->attrs[i],
abfd, info_ptr, cu);
if (attr.form == DW_FORM_ref_addr)
- complaint (&symfile_complaints, _("ignoring absolute DW_AT_sibling"));
+ complaint (&symfile_complaints,
+ _("ignoring absolute DW_AT_sibling"));
else
return buffer + dwarf2_get_ref_die_offset (&attr);
}
goto skip_attribute;
default:
- error (_("Dwarf Error: Cannot handle %s in DWARF reader [in module %s]"),
+ error (_("Dwarf Error: Cannot handle %s "
+ "in DWARF reader [in module %s]"),
dwarf_form_name (form),
bfd_get_filename (abfd));
}
{
if (pst->readin)
{
- warning (_("bug: psymtab for %s is already read in."), pst->filename);
+ warning (_("bug: psymtab for %s is already read in."),
+ pst->filename);
}
else
{
if (info_verbose)
{
- printf_filtered (_("Reading in symbols for %s..."), pst->filename);
+ printf_filtered (_("Reading in symbols for %s..."),
+ pst->filename);
gdb_flush (gdb_stdout);
}
fputs_filtered ("and ", gdb_stdout);
wrap_here ("");
printf_filtered ("%s...", pst->dependencies[i]->filename);
- wrap_here (""); /* Flush output */
+ wrap_here (""); /* Flush output. */
gdb_flush (gdb_stdout);
}
psymtab_to_symtab_1 (pst->dependencies[i]);
/* Load the DIEs associated with PER_CU into memory. */
static void
-load_full_comp_unit (struct dwarf2_per_cu_data *per_cu, struct objfile *objfile)
+load_full_comp_unit (struct dwarf2_per_cu_data *per_cu,
+ struct objfile *objfile)
{
bfd *abfd = objfile->obfd;
struct dwarf2_cu *cu;
if (per_cu->cu == NULL)
{
- cu = alloc_one_comp_unit (objfile);
+ cu = xmalloc (sizeof (*cu));
+ init_one_comp_unit (cu, objfile);
read_cu = 1;
all objfiles needed for references have been loaded yet, and symbol
table processing isn't initialized. But we have to set the CU language,
or we won't be able to build types correctly. */
- attr = dwarf2_attr (cu->dies, DW_AT_language, cu);
- if (attr)
- set_cu_language (DW_UNSND (attr), cu);
- else
- set_cu_language (language_minimal, cu);
+ prepare_one_comp_unit (cu, cu->dies);
/* Similarly, if we do not read the producer, we can not apply
producer-specific interpretation. */
xfree (prefixed_name);
}
else
- fputs_unfiltered (name ? name : "", buf);
+ fputs_unfiltered (name, buf);
/* Template parameters may be specified in the DIE's DW_AT_name, or
as children with DW_TAG_template_type_param or
if (attr == NULL)
{
complaint (&symfile_complaints,
- _("template parameter missing DW_AT_const_value"));
+ _("template parameter missing "
+ "DW_AT_const_value"));
fputs_unfiltered ("UNKNOWN_VALUE", buf);
continue;
}
else
v = value_from_longest (type, value);
- /* Specify decimal so that we do not depend on the radix. */
+ /* Specify decimal so that we do not depend on
+ the radix. */
get_formatted_print_options (&opts, 'd');
opts.raw = 1;
value_print (v, buf, &opts);
if (cu->language == language_java)
{
/* For java, we must append the return type to method
- names. */
+ names. */
if (die->tag == DW_TAG_subprogram)
java_print_type (TYPE_TARGET_TYPE (type), "", buf,
0, 0);
if (TYPE_NFIELDS (type) > 0
&& TYPE_FIELD_ARTIFICIAL (type, 0)
&& TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_PTR
- && TYPE_CONST (TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 0))))
+ && TYPE_CONST (TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type,
+ 0))))
fputs_unfiltered (" const", buf);
}
}
not have a name. NAME may either be from a previous call to
dwarf2_name or NULL.
- The output string will be canonicalized (if C++/Java). */
+ The output string will be canonicalized (if C++/Java). */
static const char *
dwarf2_full_name (char *name, struct die_info *die, struct dwarf2_cu *cu)
cu->first_fn = cu->last_fn = cu->cached_fn = NULL;
}
+/* Cleanup function for read_file_scope. */
+
static void
free_cu_line_header (void *arg)
{
*name = "<unknown>";
}
+/* Process DW_TAG_compile_unit. */
+
static void
read_file_scope (struct die_info *die, struct dwarf2_cu *cu)
{
if (attr)
cu->producer = DW_STRING (attr);
- /* We assume that we're processing GCC output. */
+ /* The XLCL doesn't generate DW_LANG_OpenCL because this attribute is not
+ standardised yet. As a workaround for the language detection we fall
+ back to the DW_AT_producer string. */
+ if (cu->producer && strstr (cu->producer, "IBM XL C for OpenCL") != NULL)
+ cu->language = language_opencl;
+
+ /* We assume that we're processing GCC output. */
processing_gcc_compilation = 2;
processing_has_namespace_info = 0;
do_cleanups (back_to);
}
-/* For TUs we want to skip the first top level sibling if it's not the
+/* Process DW_TAG_type_unit.
+ For TUs we want to skip the first top level sibling if it's not the
actual type being defined by this TU. In this case the first top
level sibling is there to provide context only. */
if (attr)
cu->producer = DW_STRING (attr);
- /* We assume that we're processing GCC output. */
+ /* We assume that we're processing GCC output. */
processing_gcc_compilation = 2;
processing_has_namespace_info = 0;
}
/* DW_AT_abstract_origin inherits whole DIEs (not just their attributes).
- Inherit only the children of the DW_AT_abstract_origin DIE not being already
- referenced by DW_AT_abstract_origin from the children of the current DIE. */
+ Inherit only the children of the DW_AT_abstract_origin DIE not being
+ already referenced by DW_AT_abstract_origin from the children of the
+ current DIE. */
static void
inherit_abstract_dies (struct die_info *die, struct dwarf2_cu *cu)
unsigned_int_compar);
for (offsetp = offsets + 1; offsetp < offsets_end; offsetp++)
if (offsetp[-1] == *offsetp)
- complaint (&symfile_complaints, _("Multiple children of DIE 0x%x refer "
- "to DIE 0x%x as their abstract origin"),
+ complaint (&symfile_complaints,
+ _("Multiple children of DIE 0x%x refer "
+ "to DIE 0x%x as their abstract origin"),
die->offset, *offsetp);
offsetp = offsets;
attr = dwarf2_attr (die, DW_AT_external, cu);
if (!attr || !DW_UNSND (attr))
complaint (&symfile_complaints,
- _("cannot get low and high bounds for subprogram DIE at %d"),
+ _("cannot get low and high bounds "
+ "for subprogram DIE at %d"),
die->offset);
return;
}
return 0;
}
+ if (range_beginning > range_end)
+ {
+ /* Inverted range entries are invalid. */
+ complaint (&symfile_complaints,
+ _("Invalid .debug_ranges data (inverted range)"));
+ return 0;
+ }
+
+ /* Empty range entries have no effect. */
+ if (range_beginning == range_end)
+ continue;
+
range_beginning += base;
range_end += base;
- if (ranges_pst != NULL && range_beginning < range_end)
+ if (ranges_pst != NULL)
addrmap_set_empty (objfile->psymtabs_addrmap,
- range_beginning + baseaddr, range_end - 1 + baseaddr,
+ range_beginning + baseaddr,
+ range_end - 1 + baseaddr,
ranges_pst);
/* FIXME: This is recording everything as a low-high
}
}
- if (high < low)
+ /* read_partial_die has also the strict LOW < HIGH requirement. */
+ if (high <= low)
return 0;
/* When using the GNU linker, .gnu.linkonce. sections are used to
}
break;
default:
- /* Ignore. */
+ /* Ignore. */
break;
}
if (!base_known)
{
complaint (&symfile_complaints,
- _("Invalid .debug_ranges data (no base address)"));
+ _("Invalid .debug_ranges data "
+ "(no base address)"));
return;
}
+ if (start > end)
+ {
+ /* Inverted range entries are invalid. */
+ complaint (&symfile_complaints,
+ _("Invalid .debug_ranges data "
+ "(inverted range)"));
+ return;
+ }
+
+ /* Empty range entries have no effect. */
+ if (start == end)
+ continue;
+
record_block_range (block,
baseaddr + base + start,
baseaddr + base + end - 1);
struct dwarf2_cu *cu)
{
struct objfile *objfile = cu->objfile;
- struct gdbarch *gdbarch = get_objfile_arch (objfile);
struct typedef_field_list *new_field;
struct attribute *attr;
struct typedef_field *fp;
TYPE_N_BASECLASSES (type) = fip->nbaseclasses;
}
- /* Copy the saved-up fields into the field vector. Start from the head
- of the list, adding to the tail of the field array, so that they end
- up in the same order in the array in which they were added to the list. */
+ /* Copy the saved-up fields into the field vector. Start from the head of
+ the list, adding to the tail of the field array, so that they end up in
+ the same order in the array in which they were added to the list. */
while (nfields-- > 0)
{
struct nextfield *fieldp;
case DW_VIRTUALITY_virtual:
case DW_VIRTUALITY_pure_virtual:
if (cu->language == language_ada)
- error ("unexpected virtuality in component of Ada type");
+ error (_("unexpected virtuality in component of Ada type"));
SET_TYPE_FIELD_VIRTUAL (type, nfields);
break;
}
struct type *this_type;
if (cu->language == language_ada)
- error ("unexpected member function in Ada type");
+ error (_("unexpected member function in Ada type"));
/* Get name of member function. */
fieldname = dwarf2_name (die, cu);
}
/* Create a new member function field and chain it to the field list
- entry. */
+ entry. */
new_fnfield = (struct nextfnfield *) xmalloc (sizeof (struct nextfnfield));
make_cleanup (xfree, new_fnfield);
memset (new_fnfield, 0, sizeof (struct nextfnfield));
/* Handle static member functions.
Dwarf2 has no clean way to discern C++ static and non-static
- member functions. G++ helps GDB by marking the first
- parameter for non-static member functions (which is the
- this pointer) as artificial. We obtain this information
- from read_subroutine_type via TYPE_FIELD_ARTIFICIAL. */
+ member functions. G++ helps GDB by marking the first
+ parameter for non-static member functions (which is the this
+ pointer) as artificial. We obtain this information from
+ read_subroutine_type via TYPE_FIELD_ARTIFICIAL. */
if (nparams == 0 || TYPE_FIELD_ARTIFICIAL (this_type, 0) == 0)
fnp->voffset = VOFFSET_STATIC;
}
if (dwarf2_attr (die, DW_AT_containing_type, cu) != NULL)
fnp->fcontext = die_containing_type (die, cu);
- /* dwarf2 doesn't have stubbed physical names, so the setting of is_const
- and is_volatile is irrelevant, as it is needed by gdb_mangle_name only. */
+ /* dwarf2 doesn't have stubbed physical names, so the setting of is_const and
+ is_volatile is irrelevant, as it is needed by gdb_mangle_name only. */
/* Get accessibility. */
attr = dwarf2_attr (die, DW_AT_accessibility, cu);
{
/* GCC does this, as of 2008-08-25; PR debug/37237. */
complaint (&symfile_complaints,
- _("Member function \"%s\" (offset %d) is virtual but the vtable offset is not specified"),
+ _("Member function \"%s\" (offset %d) is virtual "
+ "but the vtable offset is not specified"),
fieldname, die->offset);
ALLOCATE_CPLUS_STRUCT_TYPE (type);
TYPE_CPLUS_DYNAMIC (type) = 1;
int i;
if (cu->language == language_ada)
- error ("unexpected member functions in Ada type");
+ error (_("unexpected member functions in Ada type"));
ALLOCATE_CPLUS_STRUCT_TYPE (type);
TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
/* We need to add the type field to the die immediately so we don't
infinitely recurse when dealing with pointers to the structure
- type within the structure itself. */
+ type within the structure itself. */
set_die_type (die, type, cu);
/* set_die_type should be already done. */
}
else if (child_die->tag == DW_TAG_subprogram)
{
- /* C++ member function. */
+ /* C++ member function. */
dwarf2_add_member_fn (&fi, child_die, type, cu);
}
else if (child_die->tag == DW_TAG_inheritance)
/* Complain if virtual function table field not found. */
if (i < TYPE_N_BASECLASSES (t))
complaint (&symfile_complaints,
- _("virtual function table pointer not found when defining class '%s'"),
+ _("virtual function table pointer "
+ "not found when defining class '%s'"),
TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) :
"");
}
if (child_type != NULL)
{
- /* The range type was succesfully read. Save it for
- the array type creation. */
+ /* The range type was succesfully read. Save it for the
+ array type creation. */
if ((ndim % DW_FIELD_ALLOC_CHUNK) == 0)
{
range_types = (struct type **)
if (attr)
make_vector_type (type);
+ /* The DIE may have DW_AT_byte_size set. For example an OpenCL
+ implementation may choose to implement triple vectors using this
+ attribute. */
+ attr = dwarf2_attr (die, DW_AT_byte_size, cu);
+ if (attr)
+ {
+ if (DW_UNSND (attr) >= TYPE_LENGTH (type))
+ TYPE_LENGTH (type) = DW_UNSND (attr);
+ else
+ complaint (&symfile_complaints,
+ _("DW_AT_byte_size for array type smaller "
+ "than the total size of elements"));
+ }
+
name = dwarf2_name (die, cu);
if (name)
TYPE_NAME (type) = name;
- /* Install the type in the die. */
+ /* Install the type in the die. */
set_die_type (die, type, cu);
/* set_die_type should be already done. */
if (attr) return DW_SND (attr);
- /*
- GNU F77 is a special case, as at 08/2004 array type info is the
- opposite order to the dwarf2 specification, but data is still
- laid out as per normal fortran.
+ /* GNU F77 is a special case, as at 08/2004 array type info is the
+ opposite order to the dwarf2 specification, but data is still
+ laid out as per normal fortran.
- FIXME: dsl/2004-8-20: If G77 is ever fixed, this will also need
- version checking.
- */
+ FIXME: dsl/2004-8-20: If G77 is ever fixed, this will also need
+ version checking. */
if (cu->language == language_fortran
&& cu->producer && strstr (cu->producer, "GNU F77"))
}
/* Extract all information from a DW_TAG_set_type DIE and put it in
- the DIE's type field. */
+ the DIE's type field. */
static struct type *
read_set_type (struct die_info *die, struct dwarf2_cu *cu)
attr = dwarf2_attr (die, DW_AT_location, cu);
if (attr)
{
- /* Support the .debug_loc offsets */
+ /* Support the .debug_loc offsets. */
if (attr_form_is_block (attr))
{
base = decode_locdesc (DW_BLOCK (attr), cu);
read_namespace (struct die_info *die, struct dwarf2_cu *cu)
{
struct objfile *objfile = cu->objfile;
- const char *name;
int is_anonymous;
/* Add a symbol associated to this if we haven't seen the namespace
type = read_type_die (die, cu);
new_symbol (die, type, cu);
- name = namespace_name (die, &is_anonymous, cu);
+ namespace_name (die, &is_anonymous, cu);
if (is_anonymous)
{
const char *previous_prefix = determine_prefix (die, cu);
module_name = dwarf2_name (die, cu);
if (!module_name)
- complaint (&symfile_complaints, _("DW_TAG_module has no name, offset 0x%x"),
+ complaint (&symfile_complaints,
+ _("DW_TAG_module has no name, offset 0x%x"),
die->offset);
type = init_type (TYPE_CODE_MODULE, 0, 0, module_name, objfile);
}
else if (TYPE_LENGTH (type) != byte_size)
{
- complaint (&symfile_complaints, _("invalid pointer size %d"), byte_size);
+ complaint (&symfile_complaints,
+ _("invalid pointer size %d"), byte_size);
}
else
{
if (cv_type)
return cv_type;
+ /* In case the const qualifier is applied to an array type, the element type
+ is so qualified, not the array type (section 6.7.3 of C99). */
+ if (TYPE_CODE (base_type) == TYPE_CODE_ARRAY)
+ {
+ struct type *el_type, *inner_array;
+
+ base_type = copy_type (base_type);
+ inner_array = base_type;
+
+ while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY)
+ {
+ TYPE_TARGET_TYPE (inner_array) =
+ copy_type (TYPE_TARGET_TYPE (inner_array));
+ inner_array = TYPE_TARGET_TYPE (inner_array);
+ }
+
+ el_type = TYPE_TARGET_TYPE (inner_array);
+ TYPE_TARGET_TYPE (inner_array) =
+ make_cv_type (1, TYPE_VOLATILE (el_type), el_type, NULL);
+
+ return set_die_type (die, base_type, cu);
+ }
+
cv_type = make_cv_type (1, TYPE_VOLATILE (base_type), base_type, 0);
return set_die_type (die, cv_type, cu);
}
}
else
{
- /* check for the DW_AT_byte_size attribute */
+ /* Check for the DW_AT_byte_size attribute. */
attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
{
int b;
};
- ('funcp' generates a DW_TAG_subroutine_type DIE)
- */
+ ('funcp' generates a DW_TAG_subroutine_type DIE). */
static struct type *
read_subroutine_type (struct die_info *die, struct dwarf2_cu *cu)
{
- struct type *type; /* Type that this function returns */
- struct type *ftype; /* Function that returns above type */
+ struct type *type; /* Type that this function returns. */
+ struct type *ftype; /* Function that returns above type. */
struct attribute *attr;
type = die_type (die, cu);
the subroutine die. Otherwise set the calling convention to
the default value DW_CC_normal. */
attr = dwarf2_attr (die, DW_AT_calling_convention, cu);
- TYPE_CALLING_CONVENTION (ftype) = attr ? DW_UNSND (attr) : DW_CC_normal;
+ if (attr)
+ TYPE_CALLING_CONVENTION (ftype) = DW_UNSND (attr);
+ else if (cu->producer && strstr (cu->producer, "IBM XL C for OpenCL"))
+ TYPE_CALLING_CONVENTION (ftype) = DW_CC_GDB_IBM_OpenCL;
+ else
+ TYPE_CALLING_CONVENTION (ftype) = DW_CC_normal;
/* We need to add the subroutine type to the die immediately so
we don't infinitely recurse when dealing with parameters
- declared as the same subroutine type. */
+ declared as the same subroutine type. */
set_die_type (die, ftype, cu);
if (die->child != NULL)
static struct type *
read_subrange_type (struct die_info *die, struct dwarf2_cu *cu)
{
- struct gdbarch *gdbarch = get_objfile_arch (cu->objfile);
struct type *base_type;
struct type *range_type;
struct attribute *attr;
int count = dwarf2_get_attr_constant_value (attr, 1);
high = low + count - 1;
}
+ else
+ {
+ /* Unspecified array length. */
+ high = low - 1;
+ }
}
/* Dwarf-2 specifications explicitly allows to create subrange types
For the following C code: `extern char gdb_int [];'
GCC produces an empty range DIE.
FIXME: muller/2010-05-28: Possible references to object for low bound,
- high bound or count are not yet handled by this code.
- */
+ high bound or count are not yet handled by this code. */
if (TYPE_CODE (base_type) == TYPE_CODE_VOID)
{
struct objfile *objfile = cu->objfile;
if (attr && attr->form == DW_FORM_block1)
TYPE_HIGH_BOUND_UNDEFINED (range_type) = 1;
+ /* Ada expects an empty array on no boundary attributes. */
+ if (attr == NULL && cu->language != language_ada)
+ TYPE_HIGH_BOUND_UNDEFINED (range_type) = 1;
+
name = dwarf2_name (die, cu);
if (name)
TYPE_NAME (range_type) = name;
struct attr_abbrev *cur_attrs;
unsigned int allocated_attrs;
- /* Initialize dwarf2 abbrevs */
+ /* Initialize dwarf2 abbrevs. */
obstack_init (&cu->abbrev_obstack);
cu->dwarf2_abbrevs = obstack_alloc (&cu->abbrev_obstack,
(ABBREV_HASH_SIZE
allocated_attrs = ATTR_ALLOC_CHUNK;
cur_attrs = xmalloc (allocated_attrs * sizeof (struct attr_abbrev));
- /* loop until we reach an abbrev number of 0 */
+ /* Loop until we reach an abbrev number of 0. */
while (abbrev_number)
{
cur_abbrev = dwarf_alloc_abbrev (cu);
&& parent_die->has_specification == 0)
{
if (part_die->name == NULL)
- complaint (&symfile_complaints, _("malformed enumerator DIE ignored"));
+ complaint (&symfile_complaints,
+ _("malformed enumerator DIE ignored"));
else if (building_psymtab)
add_psymbol_to_list (part_die->name, strlen (part_die->name), 0,
VAR_DOMAIN, LOC_CONST,
part_die->highpc = DW_ADDR (&attr);
break;
case DW_AT_location:
- /* Support the .debug_loc offsets */
+ /* Support the .debug_loc offsets. */
if (attr_form_is_block (&attr))
{
part_die->locdesc = DW_BLOCK (&attr);
/* Ignore absolute siblings, they might point outside of
the current compile unit. */
if (attr.form == DW_FORM_ref_addr)
- complaint (&symfile_complaints, _("ignoring absolute DW_AT_sibling"));
+ complaint (&symfile_complaints,
+ _("ignoring absolute DW_AT_sibling"));
else
part_die->sibling = buffer + dwarf2_get_ref_die_offset (&attr);
break;
practice. */
if (DW_UNSND (&attr) == DW_CC_program
&& cu->language == language_fortran)
- set_main_name (part_die->name);
+ {
+ set_main_name (part_die->name);
+
+ /* As this DIE has a static linkage the name would be difficult
+ to look up later. */
+ language_of_main = language_fortran;
+ }
break;
default:
break;
}
}
- /* When using the GNU linker, .gnu.linkonce. sections are used to
- eliminate duplicate copies of functions and vtables and such.
- The linker will arbitrarily choose one and discard the others.
- The AT_*_pc values for such functions refer to local labels in
- these sections. If the section from that file was discarded, the
- labels are not in the output, so the relocs get a value of 0.
- If this is a discarded function, mark the pc bounds as invalid,
- so that GDB will ignore it. */
- if (has_low_pc_attr && has_high_pc_attr
- && part_die->lowpc < part_die->highpc
- && (part_die->lowpc != 0
- || dwarf2_per_objfile->has_section_at_zero))
- part_die->has_pc_info = 1;
+ if (has_low_pc_attr && has_high_pc_attr)
+ {
+ /* When using the GNU linker, .gnu.linkonce. sections are used to
+ eliminate duplicate copies of functions and vtables and such.
+ The linker will arbitrarily choose one and discard the others.
+ The AT_*_pc values for such functions refer to local labels in
+ these sections. If the section from that file was discarded, the
+ labels are not in the output, so the relocs get a value of 0.
+ If this is a discarded function, mark the pc bounds as invalid,
+ so that GDB will ignore it. */
+ if (part_die->lowpc == 0 && !dwarf2_per_objfile->has_section_at_zero)
+ {
+ struct gdbarch *gdbarch = get_objfile_arch (cu->objfile);
+
+ complaint (&symfile_complaints,
+ _("DW_AT_low_pc %s is zero "
+ "for DIE at 0x%x [in module %s]"),
+ paddress (gdbarch, part_die->lowpc),
+ part_die->offset, cu->objfile->name);
+ }
+ /* dwarf2_get_pc_bounds has also the strict low < high requirement. */
+ else if (part_die->lowpc >= part_die->highpc)
+ {
+ struct gdbarch *gdbarch = get_objfile_arch (cu->objfile);
+
+ complaint (&symfile_complaints,
+ _("DW_AT_low_pc %s is not < DW_AT_high_pc %s "
+ "for DIE at 0x%x [in module %s]"),
+ paddress (gdbarch, part_die->lowpc),
+ paddress (gdbarch, part_die->highpc),
+ part_die->offset, cu->objfile->name);
+ }
+ else
+ part_die->has_pc_info = 1;
+ }
return info_ptr;
}
if (pd == NULL)
internal_error (__FILE__, __LINE__,
- _("could not find partial DIE 0x%x in cache [from module %s]\n"),
+ _("could not find partial DIE 0x%x "
+ "in cache [from module %s]\n"),
offset, bfd_get_filename (cu->objfile->obfd));
return pd;
}
if (cu->header.version == 2)
DW_ADDR (attr) = read_address (abfd, info_ptr, cu, &bytes_read);
else
- DW_ADDR (attr) = read_offset (abfd, info_ptr, &cu->header, &bytes_read);
+ DW_ADDR (attr) = read_offset (abfd, info_ptr,
+ &cu->header, &bytes_read);
info_ptr += bytes_read;
break;
case DW_FORM_addr:
return read_attribute_value (attr, abbrev->form, abfd, info_ptr, cu);
}
-/* read dwarf information from a buffer */
+/* Read dwarf information from a buffer. */
static unsigned int
read_1_byte (bfd *abfd, gdb_byte *buf)
break;
default:
internal_error (__FILE__, __LINE__,
- _("read_address: bad switch, unsigned [in module %s]"),
+ _("read_address: bad switch, "
+ "unsigned [in module %s]"),
bfd_get_filename (abfd));
}
}
}
if (str_offset >= dwarf2_per_objfile->str.size)
{
- error (_("DW_FORM_strp pointing outside of .debug_str section [in module %s]"),
- bfd_get_filename (abfd));
+ error (_("DW_FORM_strp pointing outside of "
+ ".debug_str section [in module %s]"),
+ bfd_get_filename (abfd));
return NULL;
}
gdb_assert (HOST_CHAR_BIT == 8);
}
/* Free the line_header structure *LH, and any arrays and strings it
- refers to. */
+ refers to.
+ NOTE: This is also used as a "cleanup" function. */
+
static void
free_line_header (struct line_header *lh)
{
xfree (lh);
}
-
/* Add an entry to LH's include directory table. */
+
static void
add_include_dir (struct line_header *lh, char *include_dir)
{
lh->include_dirs[lh->num_include_dirs++] = include_dir;
}
-
/* Add an entry to LH's file name table. */
+
static void
add_file_name (struct line_header *lh,
char *name,
fe->symtab = NULL;
}
-
/* Read the statement program header starting at OFFSET in
.debug_line, according to the endianness of ABFD. Return a pointer
to a struct line_header, allocated using xmalloc.
NOTE: the strings in the include directory and file name tables of
the returned object point into debug_line_buffer, and must not be
freed. */
+
static struct line_header *
dwarf_decode_line_header (unsigned int offset, bfd *abfd,
struct dwarf2_cu *cu)
{
lh->maximum_ops_per_instruction = 1;
complaint (&symfile_complaints,
- _("invalid maximum_ops_per_instruction in `.debug_line' section"));
+ _("invalid maximum_ops_per_instruction "
+ "in `.debug_line' section"));
}
lh->default_is_stmt = read_1_byte (abfd, line_ptr);
if (line_ptr > (dwarf2_per_objfile->line.buffer
+ dwarf2_per_objfile->line.size))
complaint (&symfile_complaints,
- _("line number info header doesn't fit in `.debug_line' section"));
+ _("line number info header doesn't "
+ "fit in `.debug_line' section"));
discard_cleanups (back_to);
return lh;
pst_filename = copied_name;
}
- file_is_pst = strcmp (include_name_to_compare, pst_filename) == 0;
+ file_is_pst = FILENAME_CMP (include_name_to_compare, pst_filename) == 0;
if (include_name_to_compare != include_name)
xfree (include_name_to_compare);
else switch (op_code)
{
case DW_LNS_extended_op:
- extended_len = read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
+ extended_len = read_unsigned_leb128 (abfd, line_ptr,
+ &bytes_read);
line_ptr += bytes_read;
extended_end = line_ptr + extended_len;
extended_op = read_1_byte (abfd, line_ptr);
char *cur_file;
unsigned int dir_index, mod_time, length;
- cur_file = read_direct_string (abfd, line_ptr, &bytes_read);
+ cur_file = read_direct_string (abfd, line_ptr,
+ &bytes_read);
line_ptr += bytes_read;
dir_index =
read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
address increment value corresponding to special opcode
255. I.e., this value is scaled by the minimum
instruction length since special opcode 255 would have
- scaled the the increment. */
+ scaled the increment. */
case DW_LNS_const_add_pc:
{
CORE_ADDR adjust = (255 - lh->opcode_base) / lh->line_range;
subfile's name. */
static void
-dwarf2_start_subfile (char *filename, const char *dirname, const char *comp_dir)
+dwarf2_start_subfile (char *filename, const char *dirname,
+ const char *comp_dir)
{
char *fullname;
case DW_TAG_constant:
case DW_TAG_variable:
case DW_TAG_member:
- /* Compilation with minimal debug info may result in variables
- with missing type entries. Change the misleading `void' type
- to something sensible. */
+ /* Compilation with minimal debug info may result in
+ variables with missing type entries. Change the
+ misleading `void' type to something sensible. */
if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_VOID)
SYMBOL_TYPE (sym)
= objfile_type (objfile)->nodebug_data_symbol;
/* Not a tag we recognize. Hopefully we aren't processing
trash data, but since we must specifically ignore things
we don't recognize, there is nothing else we should do at
- this point. */
+ this point. */
complaint (&symfile_complaints, _("unsupported tag: '%s'"),
dwarf_tag_name (die->tag));
break;
converted to host endianness, so we just need to sign- or
zero-extend it as appropriate. */
case DW_FORM_data1:
- *bytes = dwarf2_const_value_data (attr, type, name, obstack, cu, value, 8);
+ *bytes = dwarf2_const_value_data (attr, type, name,
+ obstack, cu, value, 8);
break;
case DW_FORM_data2:
- *bytes = dwarf2_const_value_data (attr, type, name, obstack, cu, value, 16);
+ *bytes = dwarf2_const_value_data (attr, type, name,
+ obstack, cu, value, 16);
break;
case DW_FORM_data4:
- *bytes = dwarf2_const_value_data (attr, type, name, obstack, cu, value, 32);
+ *bytes = dwarf2_const_value_data (attr, type, name,
+ obstack, cu, value, 32);
break;
case DW_FORM_data8:
- *bytes = dwarf2_const_value_data (attr, type, name, obstack, cu, value, 64);
+ *bytes = dwarf2_const_value_data (attr, type, name,
+ obstack, cu, value, 64);
break;
case DW_FORM_sdata:
this_type = read_module_type (die, cu);
break;
default:
- complaint (&symfile_complaints, _("unexpected tag in read_type_die: '%s'"),
+ complaint (&symfile_complaints,
+ _("unexpected tag in read_type_die: '%s'"),
dwarf_tag_name (die->tag));
break;
}
/* Test for '::' as a sanity check. */
if (actual_name_len > die_name_len + 2
- && actual_name[actual_name_len - die_name_len - 1] == ':')
+ && actual_name[actual_name_len
+ - die_name_len - 1] == ':')
name =
obsavestring (actual_name,
actual_name_len - die_name_len - 2,
}
}
-/* Return a newly-allocated string formed by concatenating PREFIX and
- SUFFIX with appropriate separator. If PREFIX or SUFFIX is NULL or empty, then
- simply copy the SUFFIX or PREFIX, respectively. If OBS is non-null,
- perform an obconcat, otherwise allocate storage for the result. The CU argument
- is used to determine the language and hence, the appropriate separator. */
+/* Return a newly-allocated string formed by concatenating PREFIX and SUFFIX
+ with appropriate separator. If PREFIX or SUFFIX is NULL or empty, then
+ simply copy the SUFFIX or PREFIX, respectively. If OBS is non-null, perform
+ an obconcat, otherwise allocate storage for the result. The CU argument is
+ used to determine the language and hence, the appropriate separator. */
#define MAX_SEP_LEN 7 /* strlen ("__") + strlen ("_MOD_") */
const char *lead = "";
const char *sep;
- if (suffix == NULL || suffix[0] == '\0' || prefix == NULL || prefix[0] == '\0')
+ if (suffix == NULL || suffix[0] == '\0'
+ || prefix == NULL || prefix[0] == '\0')
sep = "";
else if (cu->language == language_java)
sep = ".";
if (obs == NULL)
{
- char *retval = xmalloc (strlen (prefix) + MAX_SEP_LEN + strlen (suffix) + 1);
+ char *retval
+ = xmalloc (strlen (prefix) + MAX_SEP_LEN + strlen (suffix) + 1);
strcpy (retval, lead);
strcat (retval, prefix);
/* Convert a DWARF stack opcode into its string name. */
const char *
-dwarf_stack_op_name (unsigned op, int def)
+dwarf_stack_op_name (unsigned op)
{
switch (op)
{
return "DW_OP_GNU_push_tls_address";
case DW_OP_GNU_uninit:
return "DW_OP_GNU_uninit";
+ case DW_OP_GNU_implicit_pointer:
+ return "DW_OP_GNU_implicit_pointer";
default:
- return def ? "OP_<unknown>" : NULL;
+ return NULL;
}
}
}
}
-/* Convert a DWARF call frame info operation to its string name. */
+/* Convert a DWARF call frame info operation to its string name. */
#if 0
static char *
case DW_FORM_block4:
case DW_FORM_block:
case DW_FORM_block1:
- fprintf_unfiltered (f, "block: size %d", DW_BLOCK (&die->attrs[i])->size);
+ fprintf_unfiltered (f, "block: size %d",
+ DW_BLOCK (&die->attrs[i])->size);
break;
case DW_FORM_exprloc:
fprintf_unfiltered (f, "expression: size %u",
fprintf_unfiltered (f, "flag: TRUE");
break;
case DW_FORM_indirect:
- /* the reader will have reduced the indirect form to
- the "base form" so this form should not occur */
- fprintf_unfiltered (f, "unexpected attribute form: DW_FORM_indirect");
+ /* The reader will have reduced the indirect form to
+ the "base form" so this form should not occur. */
+ fprintf_unfiltered (f,
+ "unexpected attribute form: DW_FORM_indirect");
break;
default:
fprintf_unfiltered (f, "unsupported attribute form: %d.",
}
else
{
- fprintf_unfiltered (f, " [not printed, max nesting level reached]\n");
+ fprintf_unfiltered (f,
+ " [not printed, max nesting level reached]\n");
}
}
return DW_UNSND (attr);
else
{
- complaint (&symfile_complaints, _("Attribute value is not a constant (%s)"),
+ complaint (&symfile_complaints,
+ _("Attribute value is not a constant (%s)"),
dwarf_form_name (attr->form));
return default_value;
}
struct dwarf2_locexpr_baton
dwarf2_fetch_die_location_block (unsigned int offset,
- struct dwarf2_per_cu_data *per_cu)
+ struct dwarf2_per_cu_data *per_cu,
+ CORE_ADDR (*get_frame_pc) (void *baton),
+ void *baton)
{
struct dwarf2_cu *cu = per_cu->cu;
struct die_info *die;
struct attribute *attr;
struct dwarf2_locexpr_baton retval;
+ dw2_setup (per_cu->objfile);
+
die = follow_die_offset (offset, &cu);
if (!die)
error (_("Dwarf Error: Cannot find DIE at 0x%x referenced in module %s"),
retval.data = NULL;
retval.size = 0;
}
+ else if (attr_form_is_section_offset (attr))
+ {
+ struct dwarf2_loclist_baton loclist_baton;
+ CORE_ADDR pc = (*get_frame_pc) (baton);
+ size_t size;
+
+ fill_in_loclist_baton (cu, &loclist_baton, attr);
+
+ retval.data = dwarf2_find_location_expression (&loclist_baton,
+ &size, pc);
+ retval.size = size;
+ }
else
{
if (!attr_form_is_block (attr))
return die;
}
- error (_("Dwarf Error: Cannot find signatured DIE at 0x%x referenced from DIE "
- "at 0x%x [in module %s]"),
+ error (_("Dwarf Error: Cannot find signatured DIE at 0x%x referenced "
+ "from DIE at 0x%x [in module %s]"),
sig_type->type_offset, src_die->offset, objfile->name);
}
struct dwarf2_cu *cu;
ULONGEST signature;
struct cleanup *back_to, *free_cu_cleanup;
- struct attribute *attr;
dwarf2_read_section (objfile, &dwarf2_per_objfile->types);
types_ptr = dwarf2_per_objfile->types.buffer + type_sig->offset;
gdb_assert (type_sig->per_cu.cu == NULL);
- cu = xmalloc (sizeof (struct dwarf2_cu));
- memset (cu, 0, sizeof (struct dwarf2_cu));
- obstack_init (&cu->comp_unit_obstack);
- cu->objfile = objfile;
+ cu = xmalloc (sizeof (*cu));
+ init_one_comp_unit (cu, objfile);
+
type_sig->per_cu.cu = cu;
cu->per_cu = &type_sig->per_cu;
all objfiles needed for references have been loaded yet, and symbol
table processing isn't initialized. But we have to set the CU language,
or we won't be able to build types correctly. */
- attr = dwarf2_attr (cu->dies, DW_AT_language, cu);
- if (attr)
- set_cu_language (DW_UNSND (attr), cu);
- else
- set_cu_language (language_minimal, cu);
+ prepare_one_comp_unit (cu, cu->dies);
do_cleanups (back_to);
callers will only want a very basic result and this can become a
complaint.
- Note that stack[0] is unused except as a default error return.
- Note that stack overflow is not yet handled. */
+ Note that stack[0] is unused except as a default error return. */
static CORE_ADDR
decode_locdesc (struct dwarf_block *blk, struct dwarf2_cu *cu)
i = 0;
stacki = 0;
stack[stacki] = 0;
+ stack[++stacki] = 0;
while (i < size)
{
break;
case DW_OP_plus_uconst:
- stack[stacki] += read_unsigned_leb128 (NULL, (data + i), &bytes_read);
+ stack[stacki] += read_unsigned_leb128 (NULL, (data + i),
+ &bytes_read);
i += bytes_read;
break;
break;
default:
- complaint (&symfile_complaints, _("unsupported stack op: '%s'"),
- dwarf_stack_op_name (op, 1));
+ {
+ const char *name = dwarf_stack_op_name (op);
+
+ if (name)
+ complaint (&symfile_complaints, _("unsupported stack op: '%s'"),
+ name);
+ else
+ complaint (&symfile_complaints, _("unsupported stack op: '%02x'"),
+ op);
+ }
+
return (stack[stacki]);
}
+
+ /* Enforce maximum stack depth of SIZE-1 to avoid writing
+ outside of the allocated space. Also enforce minimum>0. */
+ if (stacki >= ARRAY_SIZE (stack) - 1)
+ {
+ complaint (&symfile_complaints,
+ _("location description stack overflow"));
+ return 0;
+ }
+
+ if (stacki <= 0)
+ {
+ complaint (&symfile_complaints,
+ _("location description stack underflow"));
+ return 0;
+ }
}
return (stack[stacki]);
}
\f
/* Macro support. */
-
/* Return the full name of file number I in *LH's file name table.
Use COMP_DIR as the name of the current directory of the
compilation. The result is allocated using xmalloc; the caller is
if (*p == ' ')
{
complaint (&symfile_complaints,
- _("macro definition contains spaces in formal argument list:\n`%s'"),
+ _("macro definition contains spaces "
+ "in formal argument list:\n`%s'"),
body);
while (*p == ' ')
if (mac_ptr >= mac_end)
{
/* Complaint is printed during the second pass as GDB will probably
- stop the first pass earlier upon finding DW_MACINFO_start_file. */
+ stop the first pass earlier upon finding
+ DW_MACINFO_start_file. */
break;
}
file = read_unsigned_leb128 (abfd, mac_ptr, &bytes_read);
mac_ptr += bytes_read;
- current_file = macro_start_file (file, line, current_file, comp_dir,
- lh, cu->objfile);
+ current_file = macro_start_file (file, line, current_file,
+ comp_dir, lh, cu->objfile);
}
break;
_("something-or-other"), line, body);
break;
}
- if ((line == 0 && !at_commandline) || (line != 0 && at_commandline))
+ if ((line == 0 && !at_commandline)
+ || (line != 0 && at_commandline))
complaint (&symfile_complaints,
_("debug info gives %s macro %s with %s line %d: %s"),
at_commandline ? _("command-line") : _("in-file"),
file = read_unsigned_leb128 (abfd, mac_ptr, &bytes_read);
mac_ptr += bytes_read;
- if ((line == 0 && !at_commandline) || (line != 0 && at_commandline))
+ if ((line == 0 && !at_commandline)
+ || (line != 0 && at_commandline))
complaint (&symfile_complaints,
_("debug info gives source %d included "
"from %s at %s line %d"),
case DW_MACINFO_end_file:
if (! current_file)
complaint (&symfile_complaints,
- _("macro debug info has an unmatched `close_file' directive"));
+ _("macro debug info has an unmatched "
+ "`close_file' directive"));
else
{
current_file = current_file->included_by;
next_type = read_1_byte (abfd, mac_ptr);
if (next_type != 0)
complaint (&symfile_complaints,
- _("no terminating 0-type entry for macros in `.debug_macinfo' section"));
+ _("no terminating 0-type entry for "
+ "macros in `.debug_macinfo' section"));
return;
}
{
unsigned int bytes_read;
int constant;
- char *string;
constant = read_unsigned_leb128 (abfd, mac_ptr, &bytes_read);
mac_ptr += bytes_read;
- string = read_direct_string (abfd, mac_ptr, &bytes_read);
+ read_direct_string (abfd, mac_ptr, &bytes_read);
mac_ptr += bytes_read;
/* We don't recognize any vendor extensions. */
}
/* Check if the attribute's form is a DW_FORM_block*
- if so return true else false. */
+ if so return true else false. */
static int
attr_form_is_block (struct attribute *attr)
{
}
}
+/* A helper function that fills in a dwarf2_loclist_baton. */
+
+static void
+fill_in_loclist_baton (struct dwarf2_cu *cu,
+ struct dwarf2_loclist_baton *baton,
+ struct attribute *attr)
+{
+ dwarf2_read_section (dwarf2_per_objfile->objfile,
+ &dwarf2_per_objfile->loc);
+
+ baton->per_cu = cu->per_cu;
+ gdb_assert (baton->per_cu);
+ /* We don't know how long the location list is, but make sure we
+ don't run off the edge of the section. */
+ baton->size = dwarf2_per_objfile->loc.size - DW_UNSND (attr);
+ baton->data = dwarf2_per_objfile->loc.buffer + DW_UNSND (attr);
+ baton->base_address = cu->base_address;
+}
+
static void
dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym,
struct dwarf2_cu *cu)
/* ".debug_loc" may not exist at all, or the offset may be outside
the section. If so, fall through to the complaint in the
other branch. */
- && DW_UNSND (attr) < dwarf2_per_objfile->loc.size)
+ && DW_UNSND (attr) < dwarf2_section_size (dwarf2_per_objfile->objfile,
+ &dwarf2_per_objfile->loc))
{
struct dwarf2_loclist_baton *baton;
baton = obstack_alloc (&cu->objfile->objfile_obstack,
sizeof (struct dwarf2_loclist_baton));
- baton->per_cu = cu->per_cu;
- gdb_assert (baton->per_cu);
- dwarf2_read_section (dwarf2_per_objfile->objfile,
- &dwarf2_per_objfile->loc);
+ fill_in_loclist_baton (cu, baton, attr);
- /* We don't know how long the location list is, but make sure we
- don't run off the edge of the section. */
- baton->size = dwarf2_per_objfile->loc.size - DW_UNSND (attr);
- baton->data = dwarf2_per_objfile->loc.buffer + DW_UNSND (attr);
- baton->base_address = cu->base_address;
if (cu->base_known == 0)
complaint (&symfile_complaints,
- _("Location list used without specifying the CU base address."));
+ _("Location list used without "
+ "specifying the CU base address."));
SYMBOL_COMPUTED_OPS (sym) = &dwarf2_loclist_funcs;
SYMBOL_LOCATION_BATON (sym) = baton;
return this_cu;
}
-/* Malloc space for a dwarf2_cu for OBJFILE and initialize it. */
+/* Initialize dwarf2_cu CU for OBJFILE in a pre-allocated space. */
-static struct dwarf2_cu *
-alloc_one_comp_unit (struct objfile *objfile)
+static void
+init_one_comp_unit (struct dwarf2_cu *cu, struct objfile *objfile)
{
- struct dwarf2_cu *cu = xcalloc (1, sizeof (struct dwarf2_cu));
+ memset (cu, 0, sizeof (*cu));
cu->objfile = objfile;
obstack_init (&cu->comp_unit_obstack);
- return cu;
+}
+
+/* Initialize basic fields of dwarf_cu CU according to DIE COMP_UNIT_DIE. */
+
+static void
+prepare_one_comp_unit (struct dwarf2_cu *cu, struct die_info *comp_unit_die)
+{
+ struct attribute *attr;
+
+ /* Set the language we're debugging. */
+ attr = dwarf2_attr (comp_unit_die, DW_AT_language, cu);
+ if (attr)
+ set_cu_language (DW_UNSND (attr), cu);
+ else
+ set_cu_language (language_minimal, cu);
}
/* Release one cached compilation unit, CU. We unlink it from the tree
/* Cached DIE trees use xmalloc and the comp_unit_obstack. */
free_cached_comp_units (NULL);
- if (dwarf2_per_objfile->using_index)
- {
- int i;
-
- for (i = 0; i < dwarf2_per_objfile->n_comp_units; ++i)
- {
- int j;
- struct dwarf2_per_cu_data *per_cu =
- dwarf2_per_objfile->all_comp_units[i];
-
- if (!per_cu->v.quick->lines)
- continue;
-
- for (j = 0; j < per_cu->v.quick->lines->num_file_names; ++j)
- {
- if (per_cu->v.quick->file_names)
- xfree ((void *) per_cu->v.quick->file_names[j]);
- if (per_cu->v.quick->full_names)
- xfree ((void *) per_cu->v.quick->full_names[j]);
- }
-
- free_line_header (per_cu->v.quick->lines);
- }
- }
+ if (dwarf2_per_objfile->quick_file_names_table)
+ htab_delete (dwarf2_per_objfile->quick_file_names_table);
/* Everything else should be on the objfile obstack. */
}
}
\f
+/* The "save gdb-index" command. */
/* The contents of the hash table we create when building the string
table. */
/* Create a hash table holding symtab_index_entry objects. */
static htab_t
-create_index_table (void)
+create_symbol_hash_table (void)
{
return htab_create_alloc (100, hash_symtab_entry, eq_symtab_entry,
delete_symtab_entry, xcalloc, xfree);
/* Add a vector of indices to the constant pool. */
static offset_type
-add_indices_to_cpool (htab_t index_table, struct obstack *cpool,
+add_indices_to_cpool (htab_t symbol_hash_table, struct obstack *cpool,
struct symtab_index_entry *entry)
{
void **slot;
- slot = htab_find_slot (index_table, entry, INSERT);
+ slot = htab_find_slot (symbol_hash_table, entry, INSERT);
if (!*slot)
{
offset_type len = VEC_length (offset_type, entry->cu_indices);
struct obstack *output, struct obstack *cpool)
{
offset_type i;
- htab_t index_table;
+ htab_t symbol_hash_table;
htab_t str_table;
- index_table = create_index_table ();
+ symbol_hash_table = create_symbol_hash_table ();
str_table = create_strtab ();
+
/* We add all the index vectors to the constant pool first, to
ensure alignment is ok. */
for (i = 0; i < symtab->size; ++i)
{
if (symtab->data[i])
- add_indices_to_cpool (index_table, cpool, symtab->data[i]);
+ add_indices_to_cpool (symbol_hash_table, cpool, symtab->data[i]);
}
/* Now write out the hash table. */
}
htab_delete (str_table);
- htab_delete (index_table);
+ htab_delete (symbol_hash_table);
+}
+
+/* Struct to map psymtab to CU index in the index file. */
+struct psymtab_cu_index_map
+{
+ struct partial_symtab *psymtab;
+ unsigned int cu_index;
+};
+
+static hashval_t
+hash_psymtab_cu_index (const void *item)
+{
+ const struct psymtab_cu_index_map *map = item;
+
+ return htab_hash_pointer (map->psymtab);
+}
+
+static int
+eq_psymtab_cu_index (const void *item_lhs, const void *item_rhs)
+{
+ const struct psymtab_cu_index_map *lhs = item_lhs;
+ const struct psymtab_cu_index_map *rhs = item_rhs;
+
+ return lhs->psymtab == rhs->psymtab;
}
-/* Write an address entry to ADDR_OBSTACK. The addresses are taken
- from PST; CU_INDEX is the index of the CU in the vector of all
- CUs. */
+/* Helper struct for building the address table. */
+struct addrmap_index_data
+{
+ struct objfile *objfile;
+ struct obstack *addr_obstack;
+ htab_t cu_index_htab;
+
+ /* Non-zero if the previous_* fields are valid.
+ We can't write an entry until we see the next entry (since it is only then
+ that we know the end of the entry). */
+ int previous_valid;
+ /* Index of the CU in the table of all CUs in the index file. */
+ unsigned int previous_cu_index;
+ /* Start address of the CU. */
+ CORE_ADDR previous_cu_start;
+};
+
+/* Write an address entry to OBSTACK. */
static void
-add_address_entry (struct objfile *objfile,
- struct obstack *addr_obstack, struct partial_symtab *pst,
- unsigned int cu_index)
+add_address_entry (struct objfile *objfile, struct obstack *obstack,
+ CORE_ADDR start, CORE_ADDR end, unsigned int cu_index)
{
- offset_type offset;
+ offset_type cu_index_to_write;
char addr[8];
CORE_ADDR baseaddr;
- /* Don't bother recording empty ranges. */
- if (pst->textlow == pst->texthigh)
- return;
-
baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
- store_unsigned_integer (addr, 8, BFD_ENDIAN_LITTLE, pst->textlow - baseaddr);
- obstack_grow (addr_obstack, addr, 8);
- store_unsigned_integer (addr, 8, BFD_ENDIAN_LITTLE, pst->texthigh - baseaddr);
- obstack_grow (addr_obstack, addr, 8);
- offset = MAYBE_SWAP (cu_index);
- obstack_grow (addr_obstack, &offset, sizeof (offset_type));
+ store_unsigned_integer (addr, 8, BFD_ENDIAN_LITTLE, start - baseaddr);
+ obstack_grow (obstack, addr, 8);
+ store_unsigned_integer (addr, 8, BFD_ENDIAN_LITTLE, end - baseaddr);
+ obstack_grow (obstack, addr, 8);
+ cu_index_to_write = MAYBE_SWAP (cu_index);
+ obstack_grow (obstack, &cu_index_to_write, sizeof (offset_type));
+}
+
+/* Worker function for traversing an addrmap to build the address table. */
+
+static int
+add_address_entry_worker (void *datap, CORE_ADDR start_addr, void *obj)
+{
+ struct addrmap_index_data *data = datap;
+ struct partial_symtab *pst = obj;
+ offset_type cu_index;
+ void **slot;
+
+ if (data->previous_valid)
+ add_address_entry (data->objfile, data->addr_obstack,
+ data->previous_cu_start, start_addr,
+ data->previous_cu_index);
+
+ data->previous_cu_start = start_addr;
+ if (pst != NULL)
+ {
+ struct psymtab_cu_index_map find_map, *map;
+ find_map.psymtab = pst;
+ map = htab_find (data->cu_index_htab, &find_map);
+ gdb_assert (map != NULL);
+ data->previous_cu_index = map->cu_index;
+ data->previous_valid = 1;
+ }
+ else
+ data->previous_valid = 0;
+
+ return 0;
+}
+
+/* Write OBJFILE's address map to OBSTACK.
+ CU_INDEX_HTAB is used to map addrmap entries to their CU indices
+ in the index file. */
+
+static void
+write_address_map (struct objfile *objfile, struct obstack *obstack,
+ htab_t cu_index_htab)
+{
+ struct addrmap_index_data addrmap_index_data;
+
+ /* When writing the address table, we have to cope with the fact that
+ the addrmap iterator only provides the start of a region; we have to
+ wait until the next invocation to get the start of the next region. */
+
+ addrmap_index_data.objfile = objfile;
+ addrmap_index_data.addr_obstack = obstack;
+ addrmap_index_data.cu_index_htab = cu_index_htab;
+ addrmap_index_data.previous_valid = 0;
+
+ addrmap_foreach (objfile->psymtabs_addrmap, add_address_entry_worker,
+ &addrmap_index_data);
+
+ /* It's highly unlikely the last entry (end address = 0xff...ff)
+ is valid, but we should still handle it.
+ The end address is recorded as the start of the next region, but that
+ doesn't work here. To cope we pass 0xff...ff, this is a rare situation
+ anyway. */
+ if (addrmap_index_data.previous_valid)
+ add_address_entry (objfile, obstack,
+ addrmap_index_data.previous_cu_start, (CORE_ADDR) -1,
+ addrmap_index_data.previous_cu_index);
}
/* Add a list of partial symbols to SYMTAB. */
write_psymbols (info->symtab,
info->psyms_seen,
- info->objfile->global_psymbols.list + psymtab->globals_offset,
+ info->objfile->global_psymbols.list
+ + psymtab->globals_offset,
psymtab->n_global_syms, info->cu_index,
0);
write_psymbols (info->symtab,
info->psyms_seen,
- info->objfile->static_psymbols.list + psymtab->statics_offset,
+ info->objfile->static_psymbols.list
+ + psymtab->statics_offset,
psymtab->n_static_syms, info->cu_index,
1);
struct stat st;
char buf[8];
htab_t psyms_seen;
+ htab_t cu_index_htab;
+ struct psymtab_cu_index_map *psymtab_cu_index_map;
if (!objfile->psymtabs)
return;
error (_("Cannot use an index to create the index"));
if (stat (objfile->name, &st) < 0)
- perror_with_name (_("Could not stat"));
+ perror_with_name (objfile->name);
filename = concat (dir, SLASH_STRING, lbasename (objfile->name),
INDEX_SUFFIX, (char *) NULL);
NULL, xcalloc, xfree);
make_cleanup (cleanup_htab, psyms_seen);
- /* The list is already sorted, so we don't need to do additional
+ /* While we're scanning CU's create a table that maps a psymtab pointer
+ (which is what addrmap records) to its index (which is what is recorded
+ in the index file). This will later be needed to write the address
+ table. */
+ cu_index_htab = htab_create_alloc (100,
+ hash_psymtab_cu_index,
+ eq_psymtab_cu_index,
+ NULL, xcalloc, xfree);
+ make_cleanup (cleanup_htab, cu_index_htab);
+ psymtab_cu_index_map = (struct psymtab_cu_index_map *)
+ xmalloc (sizeof (struct psymtab_cu_index_map)
+ * dwarf2_per_objfile->n_comp_units);
+ make_cleanup (xfree, psymtab_cu_index_map);
+
+ /* The CU list is already sorted, so we don't need to do additional
work here. Also, the debug_types entries do not appear in
all_comp_units, but only in their own hash table. */
for (i = 0; i < dwarf2_per_objfile->n_comp_units; ++i)
{
- struct dwarf2_per_cu_data *per_cu = dwarf2_per_objfile->all_comp_units[i];
+ struct dwarf2_per_cu_data *per_cu
+ = dwarf2_per_objfile->all_comp_units[i];
struct partial_symtab *psymtab = per_cu->v.psymtab;
gdb_byte val[8];
+ struct psymtab_cu_index_map *map;
+ void **slot;
write_psymbols (symtab,
psyms_seen,
psymtab->n_static_syms, i,
1);
- add_address_entry (objfile, &addr_obstack, psymtab, i);
+ map = &psymtab_cu_index_map[i];
+ map->psymtab = psymtab;
+ map->cu_index = i;
+ slot = htab_find_slot (cu_index_htab, map, INSERT);
+ gdb_assert (slot != NULL);
+ gdb_assert (*slot == NULL);
+ *slot = map;
store_unsigned_integer (val, 8, BFD_ENDIAN_LITTLE, per_cu->offset);
obstack_grow (&cu_list, val, 8);
obstack_grow (&cu_list, val, 8);
}
+ /* Dump the address map. */
+ write_address_map (objfile, &addr_obstack, cu_index_htab);
+
/* Write out the .debug_type entries, if any. */
if (dwarf2_per_objfile->signatured_types)
{
total_len = size_of_contents;
/* The version number. */
- val = MAYBE_SWAP (3);
+ val = MAYBE_SWAP (4);
obstack_grow (&contents, &val, sizeof (val));
/* The offset of the CU list from the start of the file. */
1. The file header. This is a sequence of values, of offset_type
unless otherwise noted:
- [0] The version number, currently 3. Versions 1 and 2 are
+ [0] The version number, currently 4. Versions 1, 2 and 3 are
obsolete.
[1] The offset, from the start of the file, of the CU list.
[2] The offset, from the start of the file, of the types CU list.
of address entries. Each address entry has three elements.
[0] The low address. This is a 64-bit little-endian value.
[1] The high address. This is a 64-bit little-endian value.
+ Like DW_AT_high_pc, the value is one byte beyond the end.
[2] The CU index. This is an offset_type value.
5. The symbol table. This is a hash table. The size of the hash
show_dwarf2_always_disassemble (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Whether to always disassemble DWARF expressions is %s.\n"),
+ fprintf_filtered (file,
+ _("Whether to always disassemble "
+ "DWARF expressions is %s.\n"),
value);
}
c = add_cmd ("gdb-index", class_files, save_gdb_index_command,
_("\
-Save a .gdb-index file.\n\
+Save a gdb-index file.\n\
Usage: save gdb-index DIRECTORY"),
&save_cmdlist);
set_cmd_completer (c, filename_completer);
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