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[RFA/dwarf] Pass some global state around
- From: Daniel Jacobowitz <drow at mvista dot com>
- To: gdb-patches at sources dot redhat dot com
- Cc: jimb at redhat dot com
- Date: Mon, 10 Nov 2003 10:50:49 -0500
- Subject: [RFA/dwarf] Pass some global state around
This is a cleanup that I've discussed with Jim before. We create a new
structure, dwarf2_cu, and pass it to just about everything. Primary goals:
- Move some things that don't really belong in the comp_unit_head out of
that and into the new type.
- Move global state that shouldn't be global into the new type.
The eventual goal is to eliminate most/all global state for the reading of a
compilation unit, so that we can do more than one at a time.
I didn't get absolutely everything in the first pass; the patch was big
enough as it is. I did get some things that won't need any of the new data
in dwarf2_cu (for instance, read_address), but I think that the consistency
is worthwhile. For instance, you might think that we don't need to pass
around full compilation unit information for psymtab scanning - but that can
call decode_locdesc.
OK?
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer
2003-11-10 Daniel Jacobowitz <drow@mvista.com>
* dwarf2read.c (struct dwarf2_cu): New type.
(dwarf2_build_psymtabs_hard, scan_partial_symbols)
(add_partial_symbol, add_partial_namespace, add_partial_enumeration)
(locate_pdi_sibling, psymtab_to_symtab_1, process_die)
(read_file_scope, read_func_scope)
(read_lexical_block_scope, dwarf2_get_pc_bounds)
(dwarf2_add_field, dwarf2_attach_fields_to_type)
(dwarf2_add_member_fn, dwarf2_attach_fn_fields_to_type)
(read_structure_scope, read_enumeration, read_array_type)
(read_common_block, read_namespace, read_tag_pointer_type)
(read_tag_ptr_to_member_type, read_tag_reference_type)
(read_tag_const_type, read_tag_volatile_type, read_tag_string_type)
(read_subroutine_type, read_typedef, read_base_type, read_comp_unit)
(read_die_and_children, read_die_and_siblings, dwarf2_read_section)
(dwarf2_read_abbrevs, dwarf2_lookup_abbrev, read_partial_die)
(read_full_die. read_attribute_value, read_attribute)
(read_address, dwarf_decode_line_header, dwarf_decode_lines)
(var_decode_location, new_symbol, dwarf2_const_value, die_type)
(die_containing_type, type_at_offset, tag_type_to_type)
(read_type_die, dwarf_base_type, decode_locdesc, dwarf_decode_macros)
(dwarf2_symbol_mark_computed): Use it.
Index: dwarf2read.c
===================================================================
RCS file: /big/fsf/rsync/src-cvs/src/gdb/dwarf2read.c,v
retrieving revision 1.111
diff -u -p -r1.111 dwarf2read.c
--- dwarf2read.c 8 Nov 2003 00:13:02 -0000 1.111
+++ dwarf2read.c 10 Nov 2003 15:28:30 -0000
@@ -230,6 +230,20 @@ struct comp_unit_head
int base_known;
};
+/* Internal state when decoding a particular compilation unit. */
+struct dwarf2_cu
+{
+ /* The objfile containing this compilation unit. */
+ struct objfile *objfile;
+
+ /* The header of the compilation unit.
+
+ FIXME drow/2003-11-10: Some of the things from the comp_unit_head
+ should be moved to the dwarf2_cu structure; for instance the abbrevs
+ hash table. */
+ struct comp_unit_head header;
+};
+
/* 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. */
@@ -678,32 +692,28 @@ static void dwarf2_build_psymtabs_easy (
static void dwarf2_build_psymtabs_hard (struct objfile *, int);
-static char *scan_partial_symbols (char *, struct objfile *,
- CORE_ADDR *, CORE_ADDR *,
- const struct comp_unit_head *,
+static char *scan_partial_symbols (char *, CORE_ADDR *, CORE_ADDR *,
+ struct dwarf2_cu *,
const char *namespace);
-static void add_partial_symbol (struct partial_die_info *, struct objfile *,
- const struct comp_unit_head *,
+static void add_partial_symbol (struct partial_die_info *, struct dwarf2_cu *,
const char *namespace);
static char *add_partial_namespace (struct partial_die_info *pdi,
char *info_ptr,
- struct objfile *objfile,
CORE_ADDR *lowpc, CORE_ADDR *highpc,
- const struct comp_unit_head *cu_header,
+ struct dwarf2_cu *cu,
const char *namespace);
static char *add_partial_enumeration (struct partial_die_info *enum_pdi,
char *info_ptr,
- struct objfile *objfile,
- const struct comp_unit_head *cu_header,
+ struct dwarf2_cu *cu,
const char *namespace);
static char *locate_pdi_sibling (struct partial_die_info *orig_pdi,
char *info_ptr,
bfd *abfd,
- const struct comp_unit_head *cu_header);
+ struct dwarf2_cu *cu);
static void dwarf2_psymtab_to_symtab (struct partial_symtab *);
@@ -712,25 +722,24 @@ static void psymtab_to_symtab_1 (struct
char *dwarf2_read_section (struct objfile *, file_ptr, unsigned int,
asection *);
-static void dwarf2_read_abbrevs (bfd *abfd, struct comp_unit_head *cu_header);
+static void dwarf2_read_abbrevs (bfd *abfd, struct dwarf2_cu *cu);
static void dwarf2_empty_abbrev_table (void *);
static struct abbrev_info *dwarf2_lookup_abbrev (unsigned int,
- const struct comp_unit_head *cu_header);
+ struct dwarf2_cu *);
static char *read_partial_die (struct partial_die_info *,
- bfd *, char *,
- const struct comp_unit_head *);
+ bfd *, char *, struct dwarf2_cu *);
static char *read_full_die (struct die_info **, bfd *, char *,
- const struct comp_unit_head *, int *);
+ struct dwarf2_cu *, int *);
static char *read_attribute (struct attribute *, struct attr_abbrev *,
- bfd *, char *, const struct comp_unit_head *);
+ bfd *, char *, struct dwarf2_cu *);
static char *read_attribute_value (struct attribute *, unsigned,
- bfd *, char *, const struct comp_unit_head *);
+ bfd *, char *, struct dwarf2_cu *);
static unsigned int read_1_byte (bfd *, char *);
@@ -742,7 +751,7 @@ static unsigned int read_4_bytes (bfd *,
static unsigned long read_8_bytes (bfd *, char *);
-static CORE_ADDR read_address (bfd *, char *ptr, const struct comp_unit_head *,
+static CORE_ADDR read_address (bfd *, char *ptr, struct dwarf2_cu *,
int *bytes_read);
static LONGEST read_initial_length (bfd *, char *,
@@ -772,122 +781,100 @@ static void free_line_header (struct lin
static struct line_header *(dwarf_decode_line_header
(unsigned int offset,
- bfd *abfd,
- const struct comp_unit_head *cu_header));
+ bfd *abfd, struct dwarf2_cu *cu));
static void dwarf_decode_lines (struct line_header *, char *, bfd *,
- const struct comp_unit_head *);
+ struct dwarf2_cu *);
static void dwarf2_start_subfile (char *, char *);
static struct symbol *new_symbol (struct die_info *, struct type *,
- struct objfile *, const struct comp_unit_head *);
+ struct dwarf2_cu *);
static void dwarf2_const_value (struct attribute *, struct symbol *,
- struct objfile *, const struct comp_unit_head *);
+ struct dwarf2_cu *);
static void dwarf2_const_value_data (struct attribute *attr,
struct symbol *sym,
int bits);
-static struct type *die_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static struct type *die_type (struct die_info *, struct dwarf2_cu *);
-static struct type *die_containing_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static struct type *die_containing_type (struct die_info *,
+ struct dwarf2_cu *);
#if 0
static struct type *type_at_offset (unsigned int, struct objfile *);
#endif
-static struct type *tag_type_to_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static struct type *tag_type_to_type (struct die_info *, struct dwarf2_cu *);
-static void read_type_die (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_type_die (struct die_info *, struct dwarf2_cu *);
-static void read_typedef (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_typedef (struct die_info *, struct dwarf2_cu *);
-static void read_base_type (struct die_info *, struct objfile *);
+static void read_base_type (struct die_info *, struct dwarf2_cu *);
-static void read_file_scope (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_file_scope (struct die_info *, struct dwarf2_cu *);
-static void read_func_scope (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_func_scope (struct die_info *, struct dwarf2_cu *);
-static void read_lexical_block_scope (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_lexical_block_scope (struct die_info *, struct dwarf2_cu *);
static int dwarf2_get_pc_bounds (struct die_info *,
- CORE_ADDR *, CORE_ADDR *, struct objfile *,
- const struct comp_unit_head *);
+ CORE_ADDR *, CORE_ADDR *, struct dwarf2_cu *);
static void dwarf2_add_field (struct field_info *, struct die_info *,
- struct objfile *, const struct comp_unit_head *);
+ struct dwarf2_cu *);
static void dwarf2_attach_fields_to_type (struct field_info *,
- struct type *, struct objfile *);
+ struct type *, struct dwarf2_cu *);
static void dwarf2_add_member_fn (struct field_info *,
struct die_info *, struct type *,
- struct objfile *objfile,
- const struct comp_unit_head *);
+ struct dwarf2_cu *);
static void dwarf2_attach_fn_fields_to_type (struct field_info *,
- struct type *, struct objfile *);
+ struct type *, struct dwarf2_cu *);
-static void read_structure_scope (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_structure_scope (struct die_info *, struct dwarf2_cu *);
-static void read_common_block (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_common_block (struct die_info *, struct dwarf2_cu *);
-static void read_namespace (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header);
+static void read_namespace (struct die_info *die, struct dwarf2_cu *);
-static void read_enumeration (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_enumeration (struct die_info *, struct dwarf2_cu *);
-static struct type *dwarf_base_type (int, int, struct objfile *);
+static struct type *dwarf_base_type (int, int, struct dwarf2_cu *);
-static CORE_ADDR decode_locdesc (struct dwarf_block *, struct objfile *,
- const struct comp_unit_head *);
+static CORE_ADDR decode_locdesc (struct dwarf_block *, struct dwarf2_cu *);
-static void read_array_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_array_type (struct die_info *, struct dwarf2_cu *);
-static void read_tag_pointer_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_tag_pointer_type (struct die_info *, struct dwarf2_cu *);
-static void read_tag_ptr_to_member_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_tag_ptr_to_member_type (struct die_info *,
+ struct dwarf2_cu *);
-static void read_tag_reference_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_tag_reference_type (struct die_info *, struct dwarf2_cu *);
-static void read_tag_const_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_tag_const_type (struct die_info *, struct dwarf2_cu *);
-static void read_tag_volatile_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_tag_volatile_type (struct die_info *, struct dwarf2_cu *);
-static void read_tag_string_type (struct die_info *, struct objfile *);
+static void read_tag_string_type (struct die_info *, struct dwarf2_cu *);
-static void read_subroutine_type (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void read_subroutine_type (struct die_info *, struct dwarf2_cu *);
-static struct die_info *read_comp_unit (char *, bfd *,
- const struct comp_unit_head *);
+static struct die_info *read_comp_unit (char *, bfd *, struct dwarf2_cu *);
static struct die_info *read_die_and_children (char *info_ptr, bfd *abfd,
- const struct comp_unit_head *,
+ struct dwarf2_cu *,
char **new_info_ptr,
struct die_info *parent);
static struct die_info *read_die_and_siblings (char *info_ptr, bfd *abfd,
- const struct comp_unit_head *,
+ struct dwarf2_cu *,
char **new_info_ptr,
struct die_info *parent);
@@ -895,8 +882,7 @@ static void free_die_list (struct die_in
static struct cleanup *make_cleanup_free_die_list (struct die_info *);
-static void process_die (struct die_info *, struct objfile *,
- const struct comp_unit_head *);
+static void process_die (struct die_info *, struct dwarf2_cu *);
static char *dwarf2_linkage_name (struct die_info *);
@@ -953,15 +939,13 @@ static void initialize_cu_func_list (voi
static void add_to_cu_func_list (const char *, CORE_ADDR, CORE_ADDR);
static void dwarf_decode_macros (struct line_header *, unsigned int,
- char *, bfd *, const struct comp_unit_head *,
- struct objfile *);
+ char *, bfd *, struct dwarf2_cu *);
static int attr_form_is_block (struct attribute *);
static void
dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym,
- const struct comp_unit_head *,
- struct objfile *objfile);
+ struct dwarf2_cu *cu);
/* Try to locate the sections we need for DWARF 2 debugging
information and return true if we have enough to do something. */
@@ -1283,44 +1267,46 @@ dwarf2_build_psymtabs_hard (struct objfi
left at all should be sufficient. */
while (info_ptr < dwarf_info_buffer + dwarf_info_size)
{
- struct comp_unit_head cu_header;
+ struct dwarf2_cu cu;
beg_of_comp_unit = info_ptr;
- info_ptr = read_comp_unit_head (&cu_header, info_ptr, abfd);
- if (cu_header.version != 2)
+ cu.objfile = objfile;
+ info_ptr = read_comp_unit_head (&cu.header, info_ptr, abfd);
+
+ if (cu.header.version != 2)
{
- error ("Dwarf Error: wrong version in compilation unit header (is %d, should be %d) [in module %s]", cu_header.version, 2, bfd_get_filename (abfd));
+ error ("Dwarf Error: wrong version in compilation unit header (is %d, should be %d) [in module %s]", cu.header.version, 2, bfd_get_filename (abfd));
return;
}
- if (cu_header.abbrev_offset >= dwarf_abbrev_size)
+ if (cu.header.abbrev_offset >= dwarf_abbrev_size)
{
error ("Dwarf Error: bad offset (0x%lx) in compilation unit header (offset 0x%lx + 6) [in module %s]",
- (long) cu_header.abbrev_offset,
+ (long) cu.header.abbrev_offset,
(long) (beg_of_comp_unit - dwarf_info_buffer),
bfd_get_filename (abfd));
return;
}
- if (beg_of_comp_unit + cu_header.length + cu_header.initial_length_size
+ if (beg_of_comp_unit + cu.header.length + cu.header.initial_length_size
> dwarf_info_buffer + dwarf_info_size)
{
error ("Dwarf Error: bad length (0x%lx) in compilation unit header (offset 0x%lx + 0) [in module %s]",
- (long) cu_header.length,
+ (long) cu.header.length,
(long) (beg_of_comp_unit - dwarf_info_buffer),
bfd_get_filename (abfd));
return;
}
/* Complete the cu_header */
- cu_header.offset = beg_of_comp_unit - dwarf_info_buffer;
- cu_header.first_die_ptr = info_ptr;
- cu_header.cu_head_ptr = beg_of_comp_unit;
+ cu.header.offset = beg_of_comp_unit - dwarf_info_buffer;
+ cu.header.first_die_ptr = info_ptr;
+ cu.header.cu_head_ptr = beg_of_comp_unit;
/* Read the abbrevs for this compilation unit into a table */
- dwarf2_read_abbrevs (abfd, &cu_header);
- make_cleanup (dwarf2_empty_abbrev_table, cu_header.dwarf2_abbrevs);
+ dwarf2_read_abbrevs (abfd, &cu);
+ make_cleanup (dwarf2_empty_abbrev_table, cu.header.dwarf2_abbrevs);
/* Read the compilation unit die */
info_ptr = read_partial_die (&comp_unit_die, abfd, info_ptr,
- &cu_header);
+ &cu);
/* Set the language we're debugging */
set_cu_language (comp_unit_die.language);
@@ -1362,8 +1348,8 @@ dwarf2_build_psymtabs_hard (struct objfi
lowpc = ((CORE_ADDR) -1);
highpc = ((CORE_ADDR) 0);
- info_ptr = scan_partial_symbols (info_ptr, objfile, &lowpc, &highpc,
- &cu_header, NULL);
+ info_ptr = scan_partial_symbols (info_ptr, &lowpc, &highpc,
+ &cu, NULL);
/* If we didn't find a lowpc, set it to highpc to avoid
complaints from `maint check'. */
@@ -1392,8 +1378,8 @@ dwarf2_build_psymtabs_hard (struct objfi
also happen.) This happens in VxWorks. */
free_named_symtabs (pst->filename);
- info_ptr = beg_of_comp_unit + cu_header.length
- + cu_header.initial_length_size;
+ info_ptr = beg_of_comp_unit + cu.header.length
+ + cu.header.initial_length_size;
}
do_cleanups (back_to);
}
@@ -1406,11 +1392,11 @@ dwarf2_build_psymtabs_hard (struct objfi
previously encountered a DW_TAG_namespace. */
static char *
-scan_partial_symbols (char *info_ptr, struct objfile *objfile,
- CORE_ADDR *lowpc, CORE_ADDR *highpc,
- const struct comp_unit_head *cu_header,
+scan_partial_symbols (char *info_ptr, CORE_ADDR *lowpc,
+ CORE_ADDR *highpc, struct dwarf2_cu *cu,
const char *namespace)
{
+ struct objfile *objfile = cu->objfile;
bfd *abfd = objfile->obfd;
struct partial_die_info pdi;
@@ -1424,7 +1410,7 @@ scan_partial_symbols (char *info_ptr, st
inside the loop. */
int info_ptr_updated = 0;
- info_ptr = read_partial_die (&pdi, abfd, info_ptr, cu_header);
+ info_ptr = read_partial_die (&pdi, abfd, info_ptr, cu);
/* Anonymous namespaces have no name but have interesting
children, so we need to look at them. Ditto for anonymous
@@ -1448,7 +1434,7 @@ scan_partial_symbols (char *info_ptr, st
}
if (!pdi.is_declaration)
{
- add_partial_symbol (&pdi, objfile, cu_header, namespace);
+ add_partial_symbol (&pdi, cu, namespace);
}
}
break;
@@ -1459,14 +1445,13 @@ scan_partial_symbols (char *info_ptr, st
case DW_TAG_structure_type:
if (!pdi.is_declaration)
{
- add_partial_symbol (&pdi, objfile, cu_header, namespace);
+ add_partial_symbol (&pdi, cu, namespace);
}
break;
case DW_TAG_enumeration_type:
if (!pdi.is_declaration)
{
- info_ptr = add_partial_enumeration (&pdi, info_ptr,
- objfile, cu_header,
+ info_ptr = add_partial_enumeration (&pdi, info_ptr, cu,
namespace);
info_ptr_updated = 1;
}
@@ -1474,7 +1459,7 @@ scan_partial_symbols (char *info_ptr, st
case DW_TAG_base_type:
/* File scope base type definitions are added to the partial
symbol table. */
- add_partial_symbol (&pdi, objfile, cu_header, namespace);
+ add_partial_symbol (&pdi, cu, namespace);
break;
case DW_TAG_namespace:
/* We've hit a DW_TAG_namespace entry, so we know this
@@ -1482,9 +1467,8 @@ scan_partial_symbols (char *info_ptr, st
generates them; update NAMESPACE to reflect that. */
if (namespace == NULL)
namespace = "";
- info_ptr = add_partial_namespace (&pdi, info_ptr, objfile,
- lowpc, highpc, cu_header,
- namespace);
+ info_ptr = add_partial_namespace (&pdi, info_ptr, lowpc, highpc,
+ cu, namespace);
info_ptr_updated = 1;
break;
default:
@@ -1504,17 +1488,17 @@ scan_partial_symbols (char *info_ptr, st
this seems like the easiest way to handle the issue. */
if (!info_ptr_updated)
- info_ptr = locate_pdi_sibling (&pdi, info_ptr, abfd, cu_header);
+ info_ptr = locate_pdi_sibling (&pdi, info_ptr, abfd, cu);
}
return info_ptr;
}
static void
-add_partial_symbol (struct partial_die_info *pdi, struct objfile *objfile,
- const struct comp_unit_head *cu_header,
- const char *namespace)
+add_partial_symbol (struct partial_die_info *pdi,
+ struct dwarf2_cu *cu, const char *namespace)
{
+ struct objfile *objfile = cu->objfile;
CORE_ADDR addr = 0;
const struct partial_symbol *psym = NULL;
@@ -1559,7 +1543,7 @@ add_partial_symbol (struct partial_die_i
table building. */
if (pdi->locdesc)
- addr = decode_locdesc (pdi->locdesc, objfile, cu_header);
+ addr = decode_locdesc (pdi->locdesc, cu);
if (pdi->locdesc || pdi->has_type)
psym = add_psymbol_to_list (pdi->name, strlen (pdi->name),
VAR_DOMAIN, LOC_STATIC,
@@ -1572,7 +1556,7 @@ add_partial_symbol (struct partial_die_i
/* Static Variable. Skip symbols without location descriptors. */
if (pdi->locdesc == NULL)
return;
- addr = decode_locdesc (pdi->locdesc, objfile, cu_header);
+ addr = decode_locdesc (pdi->locdesc, cu);
/*prim_record_minimal_symbol (pdi->name, addr + baseaddr,
mst_file_data, objfile); */
psym = add_psymbol_to_list (pdi->name, strlen (pdi->name),
@@ -1641,16 +1625,15 @@ add_partial_symbol (struct partial_die_i
static char *
add_partial_namespace (struct partial_die_info *pdi, char *info_ptr,
- struct objfile *objfile,
CORE_ADDR *lowpc, CORE_ADDR *highpc,
- const struct comp_unit_head *cu_header,
- const char *namespace)
+ struct dwarf2_cu *cu, const char *namespace)
{
- /* Calculate the full name of the namespace that we just entered. */
-
+ struct objfile *objfile = cu->objfile;
const char *new_name = pdi->name;
char *full_name;
+ /* Calculate the full name of the namespace that we just entered. */
+
if (new_name == NULL)
new_name = "(anonymous namespace)";
full_name = alloca (strlen (namespace) + 2 + strlen (new_name) + 1);
@@ -1671,9 +1654,7 @@ add_partial_namespace (struct partial_di
/* Now scan partial symbols in that namespace. */
if (pdi->has_children)
- info_ptr = scan_partial_symbols (info_ptr, objfile,
- lowpc, highpc,
- cu_header, full_name);
+ info_ptr = scan_partial_symbols (info_ptr, lowpc, highpc, cu, full_name);
return info_ptr;
}
@@ -1682,25 +1663,24 @@ add_partial_namespace (struct partial_di
static char *
add_partial_enumeration (struct partial_die_info *enum_pdi, char *info_ptr,
- struct objfile *objfile,
- const struct comp_unit_head *cu_header,
- const char *namespace)
+ struct dwarf2_cu *cu, const char *namespace)
{
+ struct objfile *objfile = cu->objfile;
bfd *abfd = objfile->obfd;
struct partial_die_info pdi;
if (enum_pdi->name != NULL)
- add_partial_symbol (enum_pdi, objfile, cu_header, namespace);
+ add_partial_symbol (enum_pdi, cu, namespace);
while (1)
{
- info_ptr = read_partial_die (&pdi, abfd, info_ptr, cu_header);
+ info_ptr = read_partial_die (&pdi, abfd, info_ptr, cu);
if (pdi.tag == 0)
break;
if (pdi.tag != DW_TAG_enumerator || pdi.name == NULL)
complaint (&symfile_complaints, "malformed enumerator DIE ignored");
else
- add_partial_symbol (&pdi, objfile, cu_header, namespace);
+ add_partial_symbol (&pdi, cu, namespace);
}
return info_ptr;
@@ -1711,7 +1691,7 @@ add_partial_enumeration (struct partial_
static char *
locate_pdi_sibling (struct partial_die_info *orig_pdi, char *info_ptr,
- bfd *abfd, const struct comp_unit_head *cu_header)
+ bfd *abfd, struct dwarf2_cu *cu)
{
/* Do we know the sibling already? */
@@ -1731,12 +1711,12 @@ locate_pdi_sibling (struct partial_die_i
{
struct partial_die_info pdi;
- info_ptr = read_partial_die (&pdi, abfd, info_ptr, cu_header);
+ info_ptr = read_partial_die (&pdi, abfd, info_ptr, cu);
if (pdi.tag == 0)
return info_ptr;
else
- info_ptr = locate_pdi_sibling (&pdi, info_ptr, abfd, cu_header);
+ info_ptr = locate_pdi_sibling (&pdi, info_ptr, abfd, cu);
}
}
@@ -1774,7 +1754,7 @@ psymtab_to_symtab_1 (struct partial_symt
{
struct objfile *objfile = pst->objfile;
bfd *abfd = objfile->obfd;
- struct comp_unit_head cu_header;
+ struct dwarf2_cu cu;
struct die_info *dies;
unsigned long offset;
CORE_ADDR lowpc, highpc;
@@ -1809,14 +1789,16 @@ psymtab_to_symtab_1 (struct partial_symt
buildsym_init ();
make_cleanup (really_free_pendings, NULL);
+ cu.objfile = objfile;
+
/* read in the comp_unit header */
- info_ptr = read_comp_unit_head (&cu_header, info_ptr, abfd);
+ info_ptr = read_comp_unit_head (&cu.header, info_ptr, abfd);
/* Read the abbrevs for this compilation unit */
- dwarf2_read_abbrevs (abfd, &cu_header);
- make_cleanup (dwarf2_empty_abbrev_table, cu_header.dwarf2_abbrevs);
+ dwarf2_read_abbrevs (abfd, &cu);
+ make_cleanup (dwarf2_empty_abbrev_table, cu.header.dwarf2_abbrevs);
- dies = read_comp_unit (info_ptr, abfd, &cu_header);
+ dies = read_comp_unit (info_ptr, abfd, &cu);
make_cleanup_free_die_list (dies);
@@ -1826,29 +1808,29 @@ psymtab_to_symtab_1 (struct partial_symt
DW_AT_entry_pc. It's been removed, but GCC still uses this for
compilation units with discontinuous ranges. */
- cu_header.base_known = 0;
- cu_header.base_address = 0;
+ cu.header.base_known = 0;
+ cu.header.base_address = 0;
attr = dwarf_attr (dies, DW_AT_entry_pc);
if (attr)
{
- cu_header.base_address = DW_ADDR (attr);
- cu_header.base_known = 1;
+ cu.header.base_address = DW_ADDR (attr);
+ cu.header.base_known = 1;
}
else
{
attr = dwarf_attr (dies, DW_AT_low_pc);
if (attr)
{
- cu_header.base_address = DW_ADDR (attr);
- cu_header.base_known = 1;
+ cu.header.base_address = DW_ADDR (attr);
+ cu.header.base_known = 1;
}
}
/* Do line number decoding in read_file_scope () */
- process_die (dies, objfile, &cu_header);
+ process_die (dies, &cu);
- if (!dwarf2_get_pc_bounds (dies, &lowpc, &highpc, objfile, &cu_header))
+ if (!dwarf2_get_pc_bounds (dies, &lowpc, &highpc, &cu))
{
/* Some compilers don't define a DW_AT_high_pc attribute for
the compilation unit. If the DW_AT_high_pc is missing,
@@ -1863,8 +1845,7 @@ psymtab_to_symtab_1 (struct partial_symt
{
CORE_ADDR low, high;
- if (dwarf2_get_pc_bounds (child_die, &low, &high,
- objfile, &cu_header))
+ if (dwarf2_get_pc_bounds (child_die, &low, &high, &cu))
{
highpc = max (highpc, high);
}
@@ -1892,19 +1873,18 @@ psymtab_to_symtab_1 (struct partial_symt
/* Process a die and its children. */
static void
-process_die (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+process_die (struct die_info *die, struct dwarf2_cu *cu)
{
switch (die->tag)
{
case DW_TAG_padding:
break;
case DW_TAG_compile_unit:
- read_file_scope (die, objfile, cu_header);
+ read_file_scope (die, cu);
break;
case DW_TAG_subprogram:
- read_subroutine_type (die, objfile, cu_header);
- read_func_scope (die, objfile, cu_header);
+ read_subroutine_type (die, cu);
+ read_func_scope (die, cu);
break;
case DW_TAG_inlined_subroutine:
/* FIXME: These are ignored for now.
@@ -1914,44 +1894,44 @@ process_die (struct die_info *die, struc
case DW_TAG_lexical_block:
case DW_TAG_try_block:
case DW_TAG_catch_block:
- read_lexical_block_scope (die, objfile, cu_header);
+ read_lexical_block_scope (die, cu);
break;
case DW_TAG_class_type:
case DW_TAG_structure_type:
case DW_TAG_union_type:
- read_structure_scope (die, objfile, cu_header);
+ read_structure_scope (die, cu);
break;
case DW_TAG_enumeration_type:
- read_enumeration (die, objfile, cu_header);
+ read_enumeration (die, cu);
break;
case DW_TAG_subroutine_type:
- read_subroutine_type (die, objfile, cu_header);
+ read_subroutine_type (die, cu);
break;
case DW_TAG_array_type:
- read_array_type (die, objfile, cu_header);
+ read_array_type (die, cu);
break;
case DW_TAG_pointer_type:
- read_tag_pointer_type (die, objfile, cu_header);
+ read_tag_pointer_type (die, cu);
break;
case DW_TAG_ptr_to_member_type:
- read_tag_ptr_to_member_type (die, objfile, cu_header);
+ read_tag_ptr_to_member_type (die, cu);
break;
case DW_TAG_reference_type:
- read_tag_reference_type (die, objfile, cu_header);
+ read_tag_reference_type (die, cu);
break;
case DW_TAG_string_type:
- read_tag_string_type (die, objfile);
+ read_tag_string_type (die, cu);
break;
case DW_TAG_base_type:
- read_base_type (die, objfile);
+ read_base_type (die, cu);
if (dwarf_attr (die, DW_AT_name))
{
/* Add a typedef symbol for the base type definition. */
- new_symbol (die, die->type, objfile, cu_header);
+ new_symbol (die, die->type, cu);
}
break;
case DW_TAG_common_block:
- read_common_block (die, objfile, cu_header);
+ read_common_block (die, cu);
break;
case DW_TAG_common_inclusion:
break;
@@ -1961,7 +1941,7 @@ process_die (struct die_info *die, struc
processing_has_namespace_info = 1;
processing_current_namespace = "";
}
- read_namespace (die, objfile, cu_header);
+ read_namespace (die, cu);
break;
case DW_TAG_imported_declaration:
case DW_TAG_imported_module:
@@ -1979,7 +1959,7 @@ process_die (struct die_info *die, struc
gdb_assert (die->child == NULL);
break;
default:
- new_symbol (die, NULL, objfile, cu_header);
+ new_symbol (die, NULL, cu);
break;
}
}
@@ -1991,9 +1971,10 @@ initialize_cu_func_list (void)
}
static void
-read_file_scope (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_file_scope (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
+ struct comp_unit_head *cu_header = &cu->header;
struct cleanup *back_to = make_cleanup (null_cleanup, 0);
CORE_ADDR lowpc = ((CORE_ADDR) -1);
CORE_ADDR highpc = ((CORE_ADDR) 0);
@@ -2004,7 +1985,7 @@ read_file_scope (struct die_info *die, s
bfd *abfd = objfile->obfd;
struct line_header *line_header = 0;
- if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, objfile, cu_header))
+ if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu))
{
if (die->child != NULL)
{
@@ -2015,8 +1996,7 @@ read_file_scope (struct die_info *die, s
{
CORE_ADDR low, high;
- if (dwarf2_get_pc_bounds (child_die, &low, &high,
- objfile, cu_header))
+ if (dwarf2_get_pc_bounds (child_die, &low, &high, cu))
{
lowpc = min (lowpc, low);
highpc = max (highpc, high);
@@ -2092,7 +2072,7 @@ read_file_scope (struct die_info *die, s
child_die = die->child;
while (child_die && child_die->tag)
{
- process_die (child_die, objfile, cu_header);
+ process_die (child_die, cu);
child_die = sibling_die (child_die);
}
}
@@ -2102,13 +2082,12 @@ read_file_scope (struct die_info *die, s
if (attr)
{
unsigned int line_offset = DW_UNSND (attr);
- line_header = dwarf_decode_line_header (line_offset,
- abfd, cu_header);
+ line_header = dwarf_decode_line_header (line_offset, abfd, cu);
if (line_header)
{
make_cleanup ((make_cleanup_ftype *) free_line_header,
(void *) line_header);
- dwarf_decode_lines (line_header, comp_dir, abfd, cu_header);
+ dwarf_decode_lines (line_header, comp_dir, abfd, cu);
}
}
@@ -2121,7 +2100,7 @@ read_file_scope (struct die_info *die, s
{
unsigned int macro_offset = DW_UNSND (attr);
dwarf_decode_macros (line_header, macro_offset,
- comp_dir, abfd, cu_header, objfile);
+ comp_dir, abfd, cu);
}
do_cleanups (back_to);
}
@@ -2148,9 +2127,9 @@ add_to_cu_func_list (const char *name, C
}
static void
-read_func_scope (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_func_scope (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct context_stack *new;
CORE_ADDR lowpc;
CORE_ADDR highpc;
@@ -2162,7 +2141,7 @@ read_func_scope (struct die_info *die, s
/* Ignore functions with missing or empty names and functions with
missing or invalid low and high pc attributes. */
- if (name == NULL || !dwarf2_get_pc_bounds (die, &lowpc, &highpc, objfile, cu_header))
+ if (name == NULL || !dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu))
return;
lowpc += baseaddr;
@@ -2190,7 +2169,7 @@ read_func_scope (struct die_info *die, s
/* Support the .debug_loc offsets */
if (attr_form_is_block (attr))
{
- addr = decode_locdesc (DW_BLOCK (attr), objfile, cu_header);
+ addr = decode_locdesc (DW_BLOCK (attr), cu);
}
else if (attr->form == DW_FORM_data4 || attr->form == DW_FORM_data8)
{
@@ -2217,13 +2196,13 @@ read_func_scope (struct die_info *die, s
}
new = push_context (0, lowpc);
- new->name = new_symbol (die, die->type, objfile, cu_header);
+ new->name = new_symbol (die, die->type, cu);
/* If there was a location expression for DW_AT_frame_base above,
record it. We still need to decode it above because not all
symbols use location expressions exclusively. */
if (attr)
- dwarf2_symbol_mark_computed (attr, new->name, cu_header, objfile);
+ dwarf2_symbol_mark_computed (attr, new->name, cu);
list_in_scope = &local_symbols;
@@ -2232,7 +2211,7 @@ read_func_scope (struct die_info *die, s
child_die = die->child;
while (child_die && child_die->tag)
{
- process_die (child_die, objfile, cu_header);
+ process_die (child_die, cu);
child_die = sibling_die (child_die);
}
}
@@ -2259,9 +2238,9 @@ read_func_scope (struct die_info *die, s
a new scope, process the dies, and then close the scope. */
static void
-read_lexical_block_scope (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_lexical_block_scope (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct context_stack *new;
CORE_ADDR lowpc, highpc;
struct die_info *child_die;
@@ -2271,7 +2250,7 @@ read_lexical_block_scope (struct die_inf
as multiple lexical blocks? Handling children in a sane way would
be nasty. Might be easier to properly extend generic blocks to
describe ranges. */
- if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, objfile, cu_header))
+ if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu))
return;
lowpc += baseaddr;
highpc += baseaddr;
@@ -2282,7 +2261,7 @@ read_lexical_block_scope (struct die_inf
child_die = die->child;
while (child_die && child_die->tag)
{
- process_die (child_die, objfile, cu_header);
+ process_die (child_die, cu);
child_die = sibling_die (child_die);
}
}
@@ -2301,9 +2280,10 @@ read_lexical_block_scope (struct die_inf
discontinuous, i.e. derived from DW_AT_ranges information. */
static int
dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
- CORE_ADDR *highpc, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+ CORE_ADDR *highpc, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
+ struct comp_unit_head *cu_header = &cu->header;
struct attribute *attr;
bfd *obfd = objfile->obfd;
CORE_ADDR low = 0;
@@ -2338,7 +2318,6 @@ dwarf2_get_pc_bounds (struct die_info *d
CORE_ADDR base;
int found_base;
int dummy;
- unsigned int i;
char *buffer;
CORE_ADDR marker;
int low_set;
@@ -2356,13 +2335,12 @@ dwarf2_get_pc_bounds (struct die_info *d
buffer = dwarf_ranges_buffer + offset;
/* Read in the largest possible address. */
- marker = read_address (obfd, buffer, cu_header, &dummy);
+ marker = read_address (obfd, buffer, cu, &dummy);
if ((marker & mask) == mask)
{
/* If we found the largest possible address, then
read the base address. */
- base = read_address (obfd, buffer + addr_size,
- cu_header, &dummy);
+ base = read_address (obfd, buffer + addr_size, cu, &dummy);
buffer += 2 * addr_size;
offset += 2 * addr_size;
found_base = 1;
@@ -2374,10 +2352,9 @@ dwarf2_get_pc_bounds (struct die_info *d
{
CORE_ADDR range_beginning, range_end;
- range_beginning = read_address (obfd, buffer,
- cu_header, &dummy);
+ range_beginning = read_address (obfd, buffer, cu, &dummy);
buffer += addr_size;
- range_end = read_address (obfd, buffer, cu_header, &dummy);
+ range_end = read_address (obfd, buffer, cu, &dummy);
buffer += addr_size;
offset += 2 * addr_size;
@@ -2393,8 +2370,7 @@ dwarf2_get_pc_bounds (struct die_info *d
{
/* If we found the largest possible address, then
read the base address. */
- base = read_address (obfd, buffer + addr_size,
- cu_header, &dummy);
+ base = read_address (obfd, buffer + addr_size, cu, &dummy);
found_base = 1;
continue;
}
@@ -2462,9 +2438,9 @@ dwarf2_get_pc_bounds (struct die_info *d
static void
dwarf2_add_field (struct field_info *fip, struct die_info *die,
- struct objfile *objfile,
- const struct comp_unit_head *cu_header)
-{
+ struct dwarf2_cu *cu)
+{
+ struct objfile *objfile = cu->objfile;
struct nextfield *new_field;
struct attribute *attr;
struct field *fp;
@@ -2503,7 +2479,7 @@ dwarf2_add_field (struct field_info *fip
/* Data member other than a C++ static data member. */
/* Get type of field. */
- fp->type = die_type (die, objfile, cu_header);
+ fp->type = die_type (die, cu);
FIELD_STATIC_KIND (*fp) = 0;
@@ -2523,7 +2499,7 @@ dwarf2_add_field (struct field_info *fip
if (attr)
{
FIELD_BITPOS (*fp) =
- decode_locdesc (DW_BLOCK (attr), objfile, cu_header) * bits_per_byte;
+ decode_locdesc (DW_BLOCK (attr), cu) * bits_per_byte;
}
else
FIELD_BITPOS (*fp) = 0;
@@ -2609,7 +2585,7 @@ dwarf2_add_field (struct field_info *fip
SET_FIELD_PHYSNAME (*fp, obsavestring (physname, strlen (physname),
&objfile->type_obstack));
- FIELD_TYPE (*fp) = die_type (die, objfile, cu_header);
+ FIELD_TYPE (*fp) = die_type (die, cu);
FIELD_NAME (*fp) = obsavestring (fieldname, strlen (fieldname),
&objfile->type_obstack);
}
@@ -2618,11 +2594,11 @@ dwarf2_add_field (struct field_info *fip
/* C++ base class field. */
attr = dwarf_attr (die, DW_AT_data_member_location);
if (attr)
- FIELD_BITPOS (*fp) = (decode_locdesc (DW_BLOCK (attr), objfile, cu_header)
+ FIELD_BITPOS (*fp) = (decode_locdesc (DW_BLOCK (attr), cu)
* bits_per_byte);
FIELD_BITSIZE (*fp) = 0;
FIELD_STATIC_KIND (*fp) = 0;
- FIELD_TYPE (*fp) = die_type (die, objfile, cu_header);
+ FIELD_TYPE (*fp) = die_type (die, cu);
FIELD_NAME (*fp) = type_name_no_tag (fp->type);
fip->nbaseclasses++;
}
@@ -2632,7 +2608,7 @@ dwarf2_add_field (struct field_info *fip
static void
dwarf2_attach_fields_to_type (struct field_info *fip, struct type *type,
- struct objfile *objfile)
+ struct dwarf2_cu *cu)
{
int nfields = fip->nfields;
@@ -2719,9 +2695,9 @@ dwarf2_attach_fields_to_type (struct fie
static void
dwarf2_add_member_fn (struct field_info *fip, struct die_info *die,
- struct type *type, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+ struct type *type, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct attribute *attr;
struct fnfieldlist *flp;
int i;
@@ -2784,7 +2760,6 @@ dwarf2_add_member_fn (struct field_info
fnp->type = alloc_type (objfile);
if (die->type && TYPE_CODE (die->type) == TYPE_CODE_FUNC)
{
- struct type *return_type = TYPE_TARGET_TYPE (die->type);
int nparams = TYPE_NFIELDS (die->type);
/* TYPE is the domain of this method, and DIE->TYPE is the type
@@ -2810,7 +2785,7 @@ dwarf2_add_member_fn (struct field_info
/* Get fcontext from DW_AT_containing_type if present. */
if (dwarf_attr (die, DW_AT_containing_type) != NULL)
- fnp->fcontext = die_containing_type (die, objfile, cu_header);
+ 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. */
@@ -2842,7 +2817,7 @@ dwarf2_add_member_fn (struct field_info
/* Support the .debug_loc offsets */
if (attr_form_is_block (attr))
{
- fnp->voffset = decode_locdesc (DW_BLOCK (attr), objfile, cu_header) + 2;
+ fnp->voffset = decode_locdesc (DW_BLOCK (attr), cu) + 2;
}
else if (attr->form == DW_FORM_data4 || attr->form == DW_FORM_data8)
{
@@ -2860,7 +2835,7 @@ dwarf2_add_member_fn (struct field_info
static void
dwarf2_attach_fn_fields_to_type (struct field_info *fip, struct type *type,
- struct objfile *objfile)
+ struct dwarf2_cu *cu)
{
struct fnfieldlist *flp;
int total_length = 0;
@@ -2907,9 +2882,9 @@ dwarf2_attach_fn_fields_to_type (struct
suppresses creating a symbol table entry itself). */
static void
-read_structure_scope (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_structure_scope (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct type *type;
struct attribute *attr;
@@ -2974,32 +2949,32 @@ read_structure_scope (struct die_info *d
all versions of G++ as of this writing (so through at
least 3.2.1) incorrectly generate DW_TAG_variable
tags for them instead. */
- dwarf2_add_field (&fi, child_die, objfile, cu_header);
+ dwarf2_add_field (&fi, child_die, cu);
}
else if (child_die->tag == DW_TAG_subprogram)
{
/* C++ member function. */
- process_die (child_die, objfile, cu_header);
- dwarf2_add_member_fn (&fi, child_die, type, objfile, cu_header);
+ process_die (child_die, cu);
+ dwarf2_add_member_fn (&fi, child_die, type, cu);
}
else if (child_die->tag == DW_TAG_inheritance)
{
/* C++ base class field. */
- dwarf2_add_field (&fi, child_die, objfile, cu_header);
+ dwarf2_add_field (&fi, child_die, cu);
}
else
{
- process_die (child_die, objfile, cu_header);
+ process_die (child_die, cu);
}
child_die = sibling_die (child_die);
}
/* Attach fields and member functions to the type. */
if (fi.nfields)
- dwarf2_attach_fields_to_type (&fi, type, objfile);
+ dwarf2_attach_fields_to_type (&fi, type, cu);
if (fi.nfnfields)
{
- dwarf2_attach_fn_fields_to_type (&fi, type, objfile);
+ dwarf2_attach_fn_fields_to_type (&fi, type, cu);
/* Get the type which refers to the base class (possibly this
class itself) which contains the vtable pointer for the current
@@ -3007,7 +2982,7 @@ read_structure_scope (struct die_info *d
if (dwarf_attr (die, DW_AT_containing_type) != NULL)
{
- struct type *t = die_containing_type (die, objfile, cu_header);
+ struct type *t = die_containing_type (die, cu);
TYPE_VPTR_BASETYPE (type) = t;
if (type == t)
@@ -3045,7 +3020,7 @@ read_structure_scope (struct die_info *d
}
}
- new_symbol (die, type, objfile, cu_header);
+ new_symbol (die, type, cu);
do_cleanups (back_to);
}
@@ -3066,9 +3041,9 @@ read_structure_scope (struct die_info *d
NOTE: We reverse the order of the element list. */
static void
-read_enumeration (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_enumeration (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct die_info *child_die;
struct type *type;
struct field *fields;
@@ -3107,14 +3082,14 @@ read_enumeration (struct die_info *die,
{
if (child_die->tag != DW_TAG_enumerator)
{
- process_die (child_die, objfile, cu_header);
+ process_die (child_die, cu);
}
else
{
attr = dwarf_attr (child_die, DW_AT_name);
if (attr)
{
- sym = new_symbol (child_die, type, objfile, cu_header);
+ sym = new_symbol (child_die, type, cu);
if (SYMBOL_VALUE (sym) < 0)
unsigned_enum = 0;
@@ -3152,7 +3127,7 @@ read_enumeration (struct die_info *die,
TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED;
}
die->type = type;
- new_symbol (die, type, objfile, cu_header);
+ new_symbol (die, type, cu);
}
/* Extract all information from a DW_TAG_array_type DIE and put it in
@@ -3160,9 +3135,9 @@ read_enumeration (struct die_info *die,
arrays. */
static void
-read_array_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_array_type (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct die_info *child_die;
struct type *type = NULL;
struct type *element_type, *range_type, *index_type;
@@ -3177,7 +3152,7 @@ read_array_type (struct die_info *die, s
return;
}
- element_type = die_type (die, objfile, cu_header);
+ element_type = die_type (die, cu);
/* Irix 6.2 native cc creates array types without children for
arrays with unspecified length. */
@@ -3206,7 +3181,7 @@ read_array_type (struct die_info *die, s
low = 1;
}
- index_type = die_type (child_die, objfile, cu_header);
+ index_type = die_type (child_die, cu);
attr = dwarf_attr (child_die, DW_AT_lower_bound);
if (attr)
{
@@ -3316,8 +3291,7 @@ read_array_type (struct die_info *die, s
/* First cut: install each common block member as a global variable. */
static void
-read_common_block (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_common_block (struct die_info *die, struct dwarf2_cu *cu)
{
struct die_info *child_die;
struct attribute *attr;
@@ -3330,7 +3304,7 @@ read_common_block (struct die_info *die,
/* Support the .debug_loc offsets */
if (attr_form_is_block (attr))
{
- base = decode_locdesc (DW_BLOCK (attr), objfile, cu_header);
+ base = decode_locdesc (DW_BLOCK (attr), cu);
}
else if (attr->form == DW_FORM_data4 || attr->form == DW_FORM_data8)
{
@@ -3347,12 +3321,12 @@ read_common_block (struct die_info *die,
child_die = die->child;
while (child_die && child_die->tag)
{
- sym = new_symbol (child_die, NULL, objfile, cu_header);
+ sym = new_symbol (child_die, NULL, cu);
attr = dwarf_attr (child_die, DW_AT_data_member_location);
if (attr)
{
SYMBOL_VALUE_ADDRESS (sym) =
- base + decode_locdesc (DW_BLOCK (attr), objfile, cu_header);
+ base + decode_locdesc (DW_BLOCK (attr), cu);
add_symbol_to_list (sym, &global_symbols);
}
child_die = sibling_die (child_die);
@@ -3363,9 +3337,9 @@ read_common_block (struct die_info *die,
/* Read a C++ namespace. */
static void
-read_namespace (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_namespace (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
const char *previous_namespace = processing_current_namespace;
const char *name = NULL;
int is_anonymous;
@@ -3422,7 +3396,7 @@ read_namespace (struct die_info *die, st
objfile);
TYPE_TAG_NAME (type) = TYPE_NAME (type);
- new_symbol (die, type, objfile, cu_header);
+ new_symbol (die, type, cu);
if (is_anonymous)
cp_add_using_directive (processing_current_namespace,
@@ -3436,7 +3410,7 @@ read_namespace (struct die_info *die, st
while (child_die && child_die->tag)
{
- process_die (child_die, objfile, cu_header);
+ process_die (child_die, cu);
child_die = sibling_die (child_die);
}
}
@@ -3448,9 +3422,9 @@ read_namespace (struct die_info *die, st
the user defined type vector. */
static void
-read_tag_pointer_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_tag_pointer_type (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct comp_unit_head *cu_header = &cu->header;
struct type *type;
struct attribute *attr_byte_size;
struct attribute *attr_address_class;
@@ -3461,7 +3435,7 @@ read_tag_pointer_type (struct die_info *
return;
}
- type = lookup_pointer_type (die_type (die, objfile, cu_header));
+ type = lookup_pointer_type (die_type (die, cu));
attr_byte_size = dwarf_attr (die, DW_AT_byte_size);
if (attr_byte_size)
@@ -3505,9 +3479,9 @@ read_tag_pointer_type (struct die_info *
the user defined type vector. */
static void
-read_tag_ptr_to_member_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_tag_ptr_to_member_type (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct type *type;
struct type *to_type;
struct type *domain;
@@ -3518,8 +3492,8 @@ read_tag_ptr_to_member_type (struct die_
}
type = alloc_type (objfile);
- to_type = die_type (die, objfile, cu_header);
- domain = die_containing_type (die, objfile, cu_header);
+ to_type = die_type (die, cu);
+ domain = die_containing_type (die, cu);
smash_to_member_type (type, domain, to_type);
die->type = type;
@@ -3529,9 +3503,9 @@ read_tag_ptr_to_member_type (struct die_
the user defined type vector. */
static void
-read_tag_reference_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct comp_unit_head *cu_header = &cu->header;
struct type *type;
struct attribute *attr;
@@ -3540,7 +3514,7 @@ read_tag_reference_type (struct die_info
return;
}
- type = lookup_reference_type (die_type (die, objfile, cu_header));
+ type = lookup_reference_type (die_type (die, cu));
attr = dwarf_attr (die, DW_AT_byte_size);
if (attr)
{
@@ -3554,8 +3528,7 @@ read_tag_reference_type (struct die_info
}
static void
-read_tag_const_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_tag_const_type (struct die_info *die, struct dwarf2_cu *cu)
{
struct type *base_type;
@@ -3564,13 +3537,12 @@ read_tag_const_type (struct die_info *di
return;
}
- base_type = die_type (die, objfile, cu_header);
+ base_type = die_type (die, cu);
die->type = make_cv_type (1, TYPE_VOLATILE (base_type), base_type, 0);
}
static void
-read_tag_volatile_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_tag_volatile_type (struct die_info *die, struct dwarf2_cu *cu)
{
struct type *base_type;
@@ -3579,7 +3551,7 @@ read_tag_volatile_type (struct die_info
return;
}
- base_type = die_type (die, objfile, cu_header);
+ base_type = die_type (die, cu);
die->type = make_cv_type (TYPE_CONST (base_type), 1, base_type, 0);
}
@@ -3589,8 +3561,9 @@ read_tag_volatile_type (struct die_info
attribute to reference it. */
static void
-read_tag_string_type (struct die_info *die, struct objfile *objfile)
+read_tag_string_type (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct type *type, *range_type, *index_type, *char_type;
struct attribute *attr;
unsigned int length;
@@ -3646,8 +3619,7 @@ read_tag_string_type (struct die_info *d
*/
static void
-read_subroutine_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+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 */
@@ -3658,7 +3630,7 @@ read_subroutine_type (struct die_info *d
{
return;
}
- type = die_type (die, objfile, cu_header);
+ type = die_type (die, cu);
ftype = lookup_function_type (type);
/* All functions in C++ have prototypes. */
@@ -3706,8 +3678,7 @@ read_subroutine_type (struct die_info *d
TYPE_FIELD_ARTIFICIAL (ftype, iparams) = DW_UNSND (attr);
else
TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0;
- TYPE_FIELD_TYPE (ftype, iparams) = die_type (child_die, objfile,
- cu_header);
+ TYPE_FIELD_TYPE (ftype, iparams) = die_type (child_die, cu);
iparams++;
}
child_die = sibling_die (child_die);
@@ -3718,9 +3689,9 @@ read_subroutine_type (struct die_info *d
}
static void
-read_typedef (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_typedef (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct attribute *attr;
char *name = NULL;
@@ -3732,7 +3703,7 @@ read_typedef (struct die_info *die, stru
name = DW_STRING (attr);
}
die->type = init_type (TYPE_CODE_TYPEDEF, 0, TYPE_FLAG_TARGET_STUB, name, objfile);
- TYPE_TARGET_TYPE (die->type) = die_type (die, objfile, cu_header);
+ TYPE_TARGET_TYPE (die->type) = die_type (die, cu);
}
}
@@ -3740,8 +3711,9 @@ read_typedef (struct die_info *die, stru
it in the TYPE field of the die. */
static void
-read_base_type (struct die_info *die, struct objfile *objfile)
+read_base_type (struct die_info *die, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct type *type;
struct attribute *attr;
int encoding = 0, size = 0;
@@ -3815,7 +3787,7 @@ read_base_type (struct die_info *die, st
}
else
{
- type = dwarf_base_type (encoding, size, objfile);
+ type = dwarf_base_type (encoding, size, cu);
}
die->type = type;
}
@@ -3823,14 +3795,13 @@ read_base_type (struct die_info *die, st
/* Read a whole compilation unit into a linked list of dies. */
static struct die_info *
-read_comp_unit (char *info_ptr, bfd *abfd,
- const struct comp_unit_head *cu_header)
+read_comp_unit (char *info_ptr, bfd *abfd, struct dwarf2_cu *cu)
{
/* Reset die reference table; we are
building new ones now. */
dwarf2_empty_hash_tables ();
- return read_die_and_children (info_ptr, abfd, cu_header, &info_ptr, NULL);
+ return read_die_and_children (info_ptr, abfd, cu, &info_ptr, NULL);
}
/* Read a single die and all its descendents. Set the die's sibling
@@ -3841,7 +3812,7 @@ read_comp_unit (char *info_ptr, bfd *abf
static struct die_info *
read_die_and_children (char *info_ptr, bfd *abfd,
- const struct comp_unit_head *cu_header,
+ struct dwarf2_cu *cu,
char **new_info_ptr,
struct die_info *parent)
{
@@ -3849,12 +3820,12 @@ read_die_and_children (char *info_ptr, b
char *cur_ptr;
int has_children;
- cur_ptr = read_full_die (&die, abfd, info_ptr, cu_header, &has_children);
+ cur_ptr = read_full_die (&die, abfd, info_ptr, cu, &has_children);
store_in_ref_table (die->offset, die);
if (has_children)
{
- die->child = read_die_and_siblings (cur_ptr, abfd, cu_header,
+ die->child = read_die_and_siblings (cur_ptr, abfd, cu,
new_info_ptr, die);
}
else
@@ -3874,7 +3845,7 @@ read_die_and_children (char *info_ptr, b
static struct die_info *
read_die_and_siblings (char *info_ptr, bfd *abfd,
- const struct comp_unit_head *cu_header,
+ struct dwarf2_cu *cu,
char **new_info_ptr,
struct die_info *parent)
{
@@ -3887,8 +3858,7 @@ read_die_and_siblings (char *info_ptr, b
while (1)
{
struct die_info *die
- = read_die_and_children (cur_ptr, abfd, cu_header,
- &cur_ptr, parent);
+ = read_die_and_children (cur_ptr, abfd, cu, &cur_ptr, parent);
if (!first_die)
{
@@ -3978,8 +3948,9 @@ dwarf2_read_section (struct objfile *obj
in a hash table. */
static void
-dwarf2_read_abbrevs (bfd *abfd, struct comp_unit_head *cu_header)
+dwarf2_read_abbrevs (bfd *abfd, struct dwarf2_cu *cu)
{
+ struct comp_unit_head *cu_header = &cu->header;
char *abbrev_ptr;
struct abbrev_info *cur_abbrev;
unsigned int abbrev_number, bytes_read, abbrev_name;
@@ -4043,7 +4014,7 @@ dwarf2_read_abbrevs (bfd *abfd, struct c
break;
abbrev_number = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
abbrev_ptr += bytes_read;
- if (dwarf2_lookup_abbrev (abbrev_number, cu_header) != NULL)
+ if (dwarf2_lookup_abbrev (abbrev_number, cu) != NULL)
break;
}
}
@@ -4077,8 +4048,9 @@ dwarf2_empty_abbrev_table (void *ptr_to_
/* Lookup an abbrev_info structure in the abbrev hash table. */
static struct abbrev_info *
-dwarf2_lookup_abbrev (unsigned int number, const struct comp_unit_head *cu_header)
+dwarf2_lookup_abbrev (unsigned int number, struct dwarf2_cu *cu)
{
+ struct comp_unit_head *cu_header = &cu->header;
unsigned int hash_number;
struct abbrev_info *abbrev;
@@ -4099,7 +4071,7 @@ dwarf2_lookup_abbrev (unsigned int numbe
static char *
read_partial_die (struct partial_die_info *part_die, bfd *abfd,
- char *info_ptr, const struct comp_unit_head *cu_header)
+ char *info_ptr, struct dwarf2_cu *cu)
{
unsigned int abbrev_number, bytes_read, i;
struct abbrev_info *abbrev;
@@ -4115,7 +4087,7 @@ read_partial_die (struct partial_die_inf
if (!abbrev_number)
return info_ptr;
- abbrev = dwarf2_lookup_abbrev (abbrev_number, cu_header);
+ abbrev = dwarf2_lookup_abbrev (abbrev_number, cu);
if (!abbrev)
{
error ("Dwarf Error: Could not find abbrev number %d [in module %s]", abbrev_number,
@@ -4128,8 +4100,7 @@ read_partial_die (struct partial_die_inf
for (i = 0; i < abbrev->num_attrs; ++i)
{
- info_ptr = read_attribute (&attr, &abbrev->attrs[i], abfd,
- info_ptr, cu_header);
+ info_ptr = read_attribute (&attr, &abbrev->attrs[i], abfd, info_ptr, cu);
/* Store the data if it is of an attribute we want to keep in a
partial symbol table. */
@@ -4206,10 +4177,9 @@ read_partial_die (struct partial_die_inf
{
struct partial_die_info spec_die;
char *spec_ptr;
- int dummy;
spec_ptr = dwarf_info_buffer + dwarf2_get_ref_die_offset (&spec_attr);
- read_partial_die (&spec_die, abfd, spec_ptr, cu_header);
+ read_partial_die (&spec_die, abfd, spec_ptr, cu);
if (spec_die.name)
{
part_die->name = spec_die.name;
@@ -4243,7 +4213,7 @@ read_partial_die (struct partial_die_inf
static char *
read_full_die (struct die_info **diep, bfd *abfd, char *info_ptr,
- const struct comp_unit_head *cu_header, int *has_children)
+ struct dwarf2_cu *cu, int *has_children)
{
unsigned int abbrev_number, bytes_read, i, offset;
struct abbrev_info *abbrev;
@@ -4263,7 +4233,7 @@ read_full_die (struct die_info **diep, b
return info_ptr;
}
- abbrev = dwarf2_lookup_abbrev (abbrev_number, cu_header);
+ abbrev = dwarf2_lookup_abbrev (abbrev_number, cu);
if (!abbrev)
{
error ("Dwarf Error: could not find abbrev number %d [in module %s]",
@@ -4283,7 +4253,7 @@ read_full_die (struct die_info **diep, b
for (i = 0; i < abbrev->num_attrs; ++i)
{
info_ptr = read_attribute (&die->attrs[i], &abbrev->attrs[i],
- abfd, info_ptr, cu_header);
+ abfd, info_ptr, cu);
}
*diep = die;
@@ -4295,9 +4265,10 @@ read_full_die (struct die_info **diep, b
static char *
read_attribute_value (struct attribute *attr, unsigned form,
- bfd *abfd, char *info_ptr,
- const struct comp_unit_head *cu_header)
+ bfd *abfd, char *info_ptr,
+ struct dwarf2_cu *cu)
{
+ struct comp_unit_head *cu_header = &cu->header;
unsigned int bytes_read;
struct dwarf_block *blk;
@@ -4306,7 +4277,7 @@ read_attribute_value (struct attribute *
{
case DW_FORM_addr:
case DW_FORM_ref_addr:
- DW_ADDR (attr) = read_address (abfd, info_ptr, cu_header, &bytes_read);
+ DW_ADDR (attr) = read_address (abfd, info_ptr, cu, &bytes_read);
info_ptr += bytes_read;
break;
case DW_FORM_block2:
@@ -4401,7 +4372,7 @@ read_attribute_value (struct attribute *
case DW_FORM_indirect:
form = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
info_ptr += bytes_read;
- info_ptr = read_attribute_value (attr, form, abfd, info_ptr, cu_header);
+ info_ptr = read_attribute_value (attr, form, abfd, info_ptr, cu);
break;
default:
error ("Dwarf Error: Cannot handle %s in DWARF reader [in module %s]",
@@ -4415,11 +4386,10 @@ read_attribute_value (struct attribute *
static char *
read_attribute (struct attribute *attr, struct attr_abbrev *abbrev,
- bfd *abfd, char *info_ptr,
- const struct comp_unit_head *cu_header)
+ bfd *abfd, char *info_ptr, struct dwarf2_cu *cu)
{
attr->name = abbrev->name;
- return read_attribute_value (attr, abbrev->form, abfd, info_ptr, cu_header);
+ return read_attribute_value (attr, abbrev->form, abfd, info_ptr, cu);
}
/* read dwarf information from a buffer */
@@ -4467,9 +4437,9 @@ read_8_bytes (bfd *abfd, char *buf)
}
static CORE_ADDR
-read_address (bfd *abfd, char *buf, const struct comp_unit_head *cu_header,
- int *bytes_read)
+read_address (bfd *abfd, char *buf, struct dwarf2_cu *cu, int *bytes_read)
{
+ struct comp_unit_head *cu_header = &cu->header;
CORE_ADDR retval = 0;
if (cu_header->signed_addr_p)
@@ -4901,7 +4871,7 @@ add_file_name (struct line_header *lh,
freed. */
static struct line_header *
dwarf_decode_line_header (unsigned int offset, bfd *abfd,
- const struct comp_unit_head *cu_header)
+ struct dwarf2_cu *cu)
{
struct cleanup *back_to;
struct line_header *lh;
@@ -4942,7 +4912,7 @@ dwarf_decode_line_header (unsigned int o
lh->statement_program_end = line_ptr + lh->total_length;
lh->version = read_2_bytes (abfd, line_ptr);
line_ptr += 2;
- lh->header_length = read_offset (abfd, line_ptr, cu_header, &bytes_read);
+ lh->header_length = read_offset (abfd, line_ptr, &cu->header, &bytes_read);
line_ptr += bytes_read;
lh->minimum_instruction_length = read_1_byte (abfd, line_ptr);
line_ptr += 1;
@@ -5050,12 +5020,11 @@ check_cu_functions (CORE_ADDR address)
static void
dwarf_decode_lines (struct line_header *lh, char *comp_dir, bfd *abfd,
- const struct comp_unit_head *cu_header)
+ struct dwarf2_cu *cu)
{
char *line_ptr;
char *line_end;
- unsigned int i, bytes_read;
- char *cur_dir;
+ unsigned int bytes_read;
unsigned char op_code, extended_op, adj_opcode;
line_ptr = lh->statement_program_start;
@@ -5118,7 +5087,7 @@ dwarf_decode_lines (struct line_header *
record_line (current_subfile, 0, address);
break;
case DW_LNE_set_address:
- address = read_address (abfd, line_ptr, cu_header, &bytes_read);
+ address = read_address (abfd, line_ptr, cu, &bytes_read);
line_ptr += bytes_read;
address += baseaddr;
break;
@@ -5262,9 +5231,11 @@ dwarf2_start_subfile (char *filename, ch
static void
var_decode_location (struct attribute *attr, struct symbol *sym,
- struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+ struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
+ struct comp_unit_head *cu_header = &cu->header;
+
/* NOTE drow/2003-01-30: There used to be a comment and some special
code here to turn a symbol with DW_AT_external and a
SYMBOL_VALUE_ADDRESS of 0 into a LOC_UNRESOLVED symbol. This was
@@ -5295,8 +5266,7 @@ var_decode_location (struct attribute *a
int dummy;
SYMBOL_VALUE_ADDRESS (sym) =
- read_address (objfile->obfd, DW_BLOCK (attr)->data + 1, cu_header,
- &dummy);
+ read_address (objfile->obfd, DW_BLOCK (attr)->data + 1, cu, &dummy);
fixup_symbol_section (sym, objfile);
SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (objfile->section_offsets,
SYMBOL_SECTION (sym));
@@ -5311,7 +5281,7 @@ var_decode_location (struct attribute *a
not be worthwhile. I'm assuming that it isn't unless performance
or memory numbers show me otherwise. */
- dwarf2_symbol_mark_computed (attr, sym, cu_header, objfile);
+ dwarf2_symbol_mark_computed (attr, sym, cu);
SYMBOL_CLASS (sym) = LOC_COMPUTED;
}
@@ -5322,14 +5292,13 @@ var_decode_location (struct attribute *a
used the passed type. */
static struct symbol *
-new_symbol (struct die_info *die, struct type *type, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+new_symbol (struct die_info *die, struct type *type, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
struct symbol *sym = NULL;
char *name;
struct attribute *attr = NULL;
struct attribute *attr2 = NULL;
- CORE_ADDR addr = 0;
if (die->tag != DW_TAG_namespace)
name = dwarf2_linkage_name (die);
@@ -5354,7 +5323,7 @@ new_symbol (struct die_info *die, struct
if (type != NULL)
SYMBOL_TYPE (sym) = type;
else
- SYMBOL_TYPE (sym) = die_type (die, objfile, cu_header);
+ SYMBOL_TYPE (sym) = die_type (die, cu);
attr = dwarf_attr (die, DW_AT_decl_line);
if (attr)
{
@@ -5396,7 +5365,7 @@ new_symbol (struct die_info *die, struct
attr = dwarf_attr (die, DW_AT_const_value);
if (attr)
{
- dwarf2_const_value (attr, sym, objfile, cu_header);
+ dwarf2_const_value (attr, sym, cu);
attr2 = dwarf_attr (die, DW_AT_external);
if (attr2 && (DW_UNSND (attr2) != 0))
add_symbol_to_list (sym, &global_symbols);
@@ -5407,7 +5376,7 @@ new_symbol (struct die_info *die, struct
attr = dwarf_attr (die, DW_AT_location);
if (attr)
{
- var_decode_location (attr, sym, objfile, cu_header);
+ var_decode_location (attr, sym, cu);
attr2 = dwarf_attr (die, DW_AT_external);
if (attr2 && (DW_UNSND (attr2) != 0))
add_symbol_to_list (sym, &global_symbols);
@@ -5435,7 +5404,7 @@ new_symbol (struct die_info *die, struct
attr = dwarf_attr (die, DW_AT_location);
if (attr)
{
- var_decode_location (attr, sym, objfile, cu_header);
+ var_decode_location (attr, sym, cu);
/* FIXME drow/2003-07-31: Is LOC_COMPUTED_ARG necessary? */
if (SYMBOL_CLASS (sym) == LOC_COMPUTED)
SYMBOL_CLASS (sym) = LOC_COMPUTED_ARG;
@@ -5443,7 +5412,7 @@ new_symbol (struct die_info *die, struct
attr = dwarf_attr (die, DW_AT_const_value);
if (attr)
{
- dwarf2_const_value (attr, sym, objfile, cu_header);
+ dwarf2_const_value (attr, sym, cu);
}
add_symbol_to_list (sym, list_in_scope);
break;
@@ -5488,7 +5457,7 @@ new_symbol (struct die_info *die, struct
attr = dwarf_attr (die, DW_AT_const_value);
if (attr)
{
- dwarf2_const_value (attr, sym, objfile, cu_header);
+ dwarf2_const_value (attr, sym, cu);
}
add_symbol_to_list (sym, list_in_scope);
break;
@@ -5513,9 +5482,10 @@ new_symbol (struct die_info *die, struct
static void
dwarf2_const_value (struct attribute *attr, struct symbol *sym,
- struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+ struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
+ struct comp_unit_head *cu_header = &cu->header;
struct dwarf_block *blk;
switch (attr->form)
@@ -5614,8 +5584,7 @@ dwarf2_const_value_data (struct attribut
/* Return the type of the die in question using its DW_AT_type attribute. */
static struct type *
-die_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+die_type (struct die_info *die, struct dwarf2_cu *cu)
{
struct type *type;
struct attribute *type_attr;
@@ -5626,7 +5595,7 @@ die_type (struct die_info *die, struct o
if (!type_attr)
{
/* A missing DW_AT_type represents a void type. */
- return dwarf2_fundamental_type (objfile, FT_VOID);
+ return dwarf2_fundamental_type (cu->objfile, FT_VOID);
}
else
{
@@ -5635,16 +5604,16 @@ die_type (struct die_info *die, struct o
if (!type_die)
{
error ("Dwarf Error: Cannot find referent at offset %d [in module %s]",
- ref, objfile->name);
+ ref, cu->objfile->name);
return NULL;
}
}
- type = tag_type_to_type (type_die, objfile, cu_header);
+ type = tag_type_to_type (type_die, cu);
if (!type)
{
dump_die (type_die);
error ("Dwarf Error: Problem turning type die at offset into gdb type [in module %s]",
- objfile->name);
+ cu->objfile->name);
}
return type;
}
@@ -5653,8 +5622,7 @@ die_type (struct die_info *die, struct o
DW_AT_containing_type attribute. */
static struct type *
-die_containing_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+die_containing_type (struct die_info *die, struct dwarf2_cu *cu)
{
struct type *type = NULL;
struct attribute *type_attr;
@@ -5669,24 +5637,24 @@ die_containing_type (struct die_info *di
if (!type_die)
{
error ("Dwarf Error: Cannot find referent at offset %d [in module %s]", ref,
- objfile->name);
+ cu->objfile->name);
return NULL;
}
- type = tag_type_to_type (type_die, objfile, cu_header);
+ type = tag_type_to_type (type_die, cu);
}
if (!type)
{
if (type_die)
dump_die (type_die);
error ("Dwarf Error: Problem turning containing type into gdb type [in module %s]",
- objfile->name);
+ cu->objfile->name);
}
return type;
}
#if 0
static struct type *
-type_at_offset (unsigned int offset, struct objfile *objfile)
+type_at_offset (unsigned int offset, struct dwarf2_cu *cu)
{
struct die_info *die;
struct type *type;
@@ -5697,14 +5665,13 @@ type_at_offset (unsigned int offset, str
error ("Dwarf Error: Cannot find type referent at offset %d.", offset);
return NULL;
}
- type = tag_type_to_type (die, objfile);
+ type = tag_type_to_type (die, cu);
return type;
}
#endif
static struct type *
-tag_type_to_type (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+tag_type_to_type (struct die_info *die, struct dwarf2_cu *cu)
{
if (die->type)
{
@@ -5712,61 +5679,60 @@ tag_type_to_type (struct die_info *die,
}
else
{
- read_type_die (die, objfile, cu_header);
+ read_type_die (die, cu);
if (!die->type)
{
dump_die (die);
error ("Dwarf Error: Cannot find type of die [in module %s]",
- objfile->name);
+ cu->objfile->name);
}
return die->type;
}
}
static void
-read_type_die (struct die_info *die, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+read_type_die (struct die_info *die, struct dwarf2_cu *cu)
{
switch (die->tag)
{
case DW_TAG_class_type:
case DW_TAG_structure_type:
case DW_TAG_union_type:
- read_structure_scope (die, objfile, cu_header);
+ read_structure_scope (die, cu);
break;
case DW_TAG_enumeration_type:
- read_enumeration (die, objfile, cu_header);
+ read_enumeration (die, cu);
break;
case DW_TAG_subprogram:
case DW_TAG_subroutine_type:
- read_subroutine_type (die, objfile, cu_header);
+ read_subroutine_type (die, cu);
break;
case DW_TAG_array_type:
- read_array_type (die, objfile, cu_header);
+ read_array_type (die, cu);
break;
case DW_TAG_pointer_type:
- read_tag_pointer_type (die, objfile, cu_header);
+ read_tag_pointer_type (die, cu);
break;
case DW_TAG_ptr_to_member_type:
- read_tag_ptr_to_member_type (die, objfile, cu_header);
+ read_tag_ptr_to_member_type (die, cu);
break;
case DW_TAG_reference_type:
- read_tag_reference_type (die, objfile, cu_header);
+ read_tag_reference_type (die, cu);
break;
case DW_TAG_const_type:
- read_tag_const_type (die, objfile, cu_header);
+ read_tag_const_type (die, cu);
break;
case DW_TAG_volatile_type:
- read_tag_volatile_type (die, objfile, cu_header);
+ read_tag_volatile_type (die, cu);
break;
case DW_TAG_string_type:
- read_tag_string_type (die, objfile);
+ read_tag_string_type (die, cu);
break;
case DW_TAG_typedef:
- read_typedef (die, objfile, cu_header);
+ read_typedef (die, cu);
break;
case DW_TAG_base_type:
- read_base_type (die, objfile);
+ read_base_type (die, cu);
break;
default:
complaint (&symfile_complaints, "unexepected tag in read_type_die: '%s'",
@@ -5776,8 +5742,10 @@ read_type_die (struct die_info *die, str
}
static struct type *
-dwarf_base_type (int encoding, int size, struct objfile *objfile)
+dwarf_base_type (int encoding, int size, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
+
/* FIXME - this should not produce a new (struct type *)
every time. It should cache base types. */
struct type *type;
@@ -6941,9 +6909,10 @@ dwarf2_fundamental_type (struct objfile
Note that stack overflow is not yet handled. */
static CORE_ADDR
-decode_locdesc (struct dwarf_block *blk, struct objfile *objfile,
- const struct comp_unit_head *cu_header)
+decode_locdesc (struct dwarf_block *blk, struct dwarf2_cu *cu)
{
+ struct objfile *objfile = cu->objfile;
+ struct comp_unit_head *cu_header = &cu->header;
int i;
int size = blk->size;
char *data = blk->data;
@@ -7110,7 +7079,7 @@ decode_locdesc (struct dwarf_block *blk,
case DW_OP_addr:
stack[++stacki] = read_address (objfile->obfd, &data[i],
- cu_header, &bytes_read);
+ cu, &bytes_read);
i += bytes_read;
break;
@@ -7482,8 +7451,7 @@ parse_macro_definition (struct macro_sou
static void
dwarf_decode_macros (struct line_header *lh, unsigned int offset,
char *comp_dir, bfd *abfd,
- const struct comp_unit_head *cu_header,
- struct objfile *objfile)
+ struct dwarf2_cu *cu)
{
char *mac_ptr, *mac_end;
struct macro_source_file *current_file = 0;
@@ -7559,7 +7527,7 @@ dwarf_decode_macros (struct line_header
current_file = macro_start_file (file, line,
current_file, comp_dir,
- lh, objfile);
+ lh, cu->objfile);
}
break;
@@ -7630,23 +7598,22 @@ attr_form_is_block (struct attribute *at
static void
dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym,
- const struct comp_unit_head *cu_header,
- struct objfile *objfile)
+ struct dwarf2_cu *cu)
{
if (attr->form == DW_FORM_data4 || attr->form == DW_FORM_data8)
{
struct dwarf2_loclist_baton *baton;
- baton = obstack_alloc (&objfile->symbol_obstack,
+ baton = obstack_alloc (&cu->objfile->symbol_obstack,
sizeof (struct dwarf2_loclist_baton));
- baton->objfile = objfile;
+ baton->objfile = cu->objfile;
/* We don't know how long the location list is, but make sure we
don't run off the edge of the section. */
baton->size = dwarf_loc_size - DW_UNSND (attr);
baton->data = dwarf_loc_buffer + DW_UNSND (attr);
- baton->base_address = cu_header->base_address;
- if (cu_header->base_known == 0)
+ baton->base_address = cu->header.base_address;
+ if (cu->header.base_known == 0)
complaint (&symfile_complaints,
"Location list used without specifying the CU base address.");
@@ -7657,9 +7624,9 @@ dwarf2_symbol_mark_computed (struct attr
{
struct dwarf2_locexpr_baton *baton;
- baton = obstack_alloc (&objfile->symbol_obstack,
+ baton = obstack_alloc (&cu->objfile->symbol_obstack,
sizeof (struct dwarf2_locexpr_baton));
- baton->objfile = objfile;
+ baton->objfile = cu->objfile;
if (attr_form_is_block (attr))
{