dwarves/pdwtags.c

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/*
SPDX-License-Identifier: GPL-2.0-only
Copyright (C) 2007-2016 Arnaldo Carvalho de Melo <acme@kernel.org>
*/
#include <argp.h>
#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#include "dwarves.h"
#include "dutil.h"
static struct conf_fprintf conf = {
.emit_stats = 1,
};
static void emit_tag(struct tag *tag, uint32_t tag_id, struct cu *cu)
{
printf("/* %d */\n", tag_id);
dwarves: Remove some more DWARF details from the core Had to be a big sweeping change, but the regression tests shows just improvements :-) Now we stop using an id in struct tag, only storing the type, that now uses 16 bits only, as CTF does. Each format loader has to go on adding the types to the core, that figures out if it is a tag that can be on the tag->type field (tag__is_tag_type). Formats that already have the types separated and in sequence, such as CTF, just ask the core to insert in the types_table directly with its original ID. For DWARF, we ask the core to put it on the table, in sequence, and return the index, that is then stashed with the DWARF specific info (original id, type, decl_line, etc) and hashed by the original id. Later we recode everything, looking up via the original type, getting the small_id to put on the tag->type. The underlying debugging info not needed by the core is stashed in tag->priv, and the DWARF loader now just allocates sizeof(struct dwarf_tag) at the end of the core tag and points it there, and makes that info available thru cu->orig_info. In the future we can ask, when loading a cu, that this info be trown away, so that we reduce the memory footprint for big multi-cu files such as the Linux kernel. There is also a routine to ask for inserting a NULL, as we still have bugs in the CTF decoding and thus some entries are being lost, to avoid using an undefined pointer when traversing the types_table the ctf loader puts a NULL there via cu__table_nullify_type_entry() and then cu__for_each_type skips those. There is some more cleanups for leftovers that I avoided cleaning to reduce this changeset. And also while doing this I saw that enums can appear without any enumerators and that an array with DW_TAG_GNU_vector is actually a different tag, encoded this way till we get to DWARF4 ;-) So now we don't have to lookup on a hash table looking for DWARF offsets, we can do the more sensible thing of just indexing the types_tags array. Now to do some cleanups and try to get the per cu encoder done. Then order all the cus per number of type entries, pick the one with more, then go on merging/recoding the types of the others and putting the parent linkage in place. Just to show the extent of the changes: $ codiff /tmp/libdwarves.so.1.0.0 build/libdwarves.so.1.0.0 /home/acme/git/pahole/dwarves.c: struct cu | -4048 struct tag | -32 struct ptr_to_member_type | -32 struct namespace | -32 struct type | -32 struct class | -32 struct base_type | -32 struct array_type | -32 struct class_member | -32 struct lexblock | -32 struct ftype | -32 struct function | -64 struct parameter | -32 struct variable | -32 struct inline_expansion | -32 struct label | -32 struct enumerator | -32 17 structs changed tag__follow_typedef | +3 tag__fprintf_decl_info | +25 array_type__fprintf | +6 type__name | -126 type__find_first_biggest_size_base_type_member | -3 typedef__fprintf | +16 imported_declaration__fprintf | +6 imported_module__fprintf | +3 cu__new | +26 cu__delete | +26 hashtags__hash | -65 hash_64 | -124 hlist_add_head | -78 hashtags__find | -157 cu__hash | -80 cu__add_tag | +20 tag__prefix | -3 cu__find_tag_by_id | -2 cu__find_type_by_id | -3 cu__find_first_typedef_of_type | +38 cu__find_base_type_by_name | +68 cu__find_base_type_by_name_and_size | +72 cu__find_struct_by_name | +59 cus__find_struct_by_name | +8 cus__find_tag_by_id | +5 cus__find_cu_by_name | -6 lexblock__find_tag_by_id | -173 cu__find_variable_by_id | -197 list__find_tag_by_id | -308 cu__find_parameter_by_id | -60 tag__ptr_name | +6 tag__name | +15 variable__type | +13 variable__name | +7 class_member__size | +6 parameter__name | -119 tag__parameter | -14 parameter__type | -143 type__fprintf | -29 union__fprintf | +6 class__add_vtable_entry | -9 type__add_member | -6 type__clone_members | -3 enumeration__add | -6 function__name | -156 ftype__has_parm_of_type | -39 class__find_holes | -27 class__has_hole_ge | -3 type__nr_members_of_type | +3 lexblock__account_inline_expansions | +3 cu__account_inline_expansions | -18 ftype__fprintf_parms | +46 function__tag_fprintf | +24 lexblock__fprintf | -6 ftype__fprintf | +3 function__fprintf_stats | -18 function__size | -6 class__vtable_fprintf | -11 class__fprintf | -21 tag__fprintf | -35 60 functions changed, 513 bytes added, 2054 bytes removed, diff: -1541 /home/acme/git/pahole/ctf_loader.c: struct ctf_short_type | +0 14 structs changed type__init | -14 type__new | -9 class__new | -12 create_new_base_type | -7 create_new_base_type_float | -7 create_new_array | -8 create_new_subroutine_type | -9 create_full_members | -18 create_short_members | -18 create_new_class | +1 create_new_union | +1 create_new_enumeration | -19 create_new_forward_decl | -2 create_new_typedef | +3 create_new_tag | -5 load_types | +16 class__fixup_ctf_bitfields | -3 17 functions changed, 21 bytes added, 131 bytes removed, diff: -110 /home/acme/git/pahole/dwarf_loader.c: 17 structs changed zalloc | -56 tag__init | +3 array_type__new | +20 type__init | -24 class_member__new | +46 inline_expansion__new | +12 class__new | +81 lexblock__init | +19 function__new | +43 die__create_new_array | +20 die__create_new_parameter | +4 die__create_new_label | +4 die__create_new_subroutine_type | +113 die__create_new_enumeration | -21 die__process_class | +79 die__process_namespace | +76 die__create_new_inline_expansion | +4 die__process_function | +147 __die__process_tag | +34 die__process_unit | +56 die__process | +90 21 functions changed, 851 bytes added, 101 bytes removed, diff: +750 /home/acme/git/pahole/dwarves.c: struct ptr_table | +16 struct cu_orig_info | +32 2 structs changed tag__decl_line | +68 tag__decl_file | +70 tag__orig_id | +71 ptr_table__init | +46 ptr_table__exit | +37 ptr_table__add | +183 ptr_table__add_with_id | +165 ptr_table__entry | +64 cu__table_add_tag | +171 cu__table_nullify_type_entry | +38 10 functions changed, 913 bytes added, diff: +913 /home/acme/git/pahole/ctf_loader.c: 2 structs changed tag__alloc | +52 1 function changed, 52 bytes added, diff: +52 /home/acme/git/pahole/dwarf_loader.c: struct dwarf_tag | +48 struct dwarf_cu | +4104 4 structs changed dwarf_cu__init | +83 hashtags__hash | +61 hash_64 | +124 hlist_add_head | +78 hashtags__find | +161 cu__hash | +95 tag__is_tag_type | +171 tag__is_type | +85 tag__is_union | +28 tag__is_struct | +57 tag__is_typedef | +28 tag__is_enumeration | +28 dwarf_cu__find_tag_by_id | +56 dwarf_cu__find_type_by_id | +63 tag__alloc | +114 __tag__print_type_not_found | +108 namespace__recode_dwarf_types | +346 tag__namespace | +14 tag__has_namespace | +86 tag__is_namespace | +28 type__recode_dwarf_specification | +182 tag__type | +14 __tag__print_abstract_origin_not_found | +105 ftype__recode_dwarf_types | +322 tag__ftype | +14 tag__parameter | +14 lexblock__recode_dwarf_types | +736 tag__lexblock | +14 tag__label | +14 tag__recode_dwarf_type | +766 tag__ptr_to_member_type | +14 cu__recode_dwarf_types_table | +88 cu__recode_dwarf_types | +48 dwarf_tag__decl_file | +77 strings__ptr | +33 dwarf_tag__decl_line | +59 dwarf_tag__orig_id | +59 dwarf_tag__orig_type | +59 38 functions changed, 4432 bytes added, diff: +4432 build/libdwarves.so.1.0.0: 147 functions changed, 6782 bytes added, 2286 bytes removed, diff: +4496 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2009-03-06 00:29:35 +01:00
if (tag__is_struct(tag))
class__find_holes(tag__class(tag));
if (tag->tag == DW_TAG_base_type) {
char bf[64];
const char *name = base_type__name(tag__base_type(tag), cu,
bf, sizeof(bf));
dwarves: Remove some more DWARF details from the core Had to be a big sweeping change, but the regression tests shows just improvements :-) Now we stop using an id in struct tag, only storing the type, that now uses 16 bits only, as CTF does. Each format loader has to go on adding the types to the core, that figures out if it is a tag that can be on the tag->type field (tag__is_tag_type). Formats that already have the types separated and in sequence, such as CTF, just ask the core to insert in the types_table directly with its original ID. For DWARF, we ask the core to put it on the table, in sequence, and return the index, that is then stashed with the DWARF specific info (original id, type, decl_line, etc) and hashed by the original id. Later we recode everything, looking up via the original type, getting the small_id to put on the tag->type. The underlying debugging info not needed by the core is stashed in tag->priv, and the DWARF loader now just allocates sizeof(struct dwarf_tag) at the end of the core tag and points it there, and makes that info available thru cu->orig_info. In the future we can ask, when loading a cu, that this info be trown away, so that we reduce the memory footprint for big multi-cu files such as the Linux kernel. There is also a routine to ask for inserting a NULL, as we still have bugs in the CTF decoding and thus some entries are being lost, to avoid using an undefined pointer when traversing the types_table the ctf loader puts a NULL there via cu__table_nullify_type_entry() and then cu__for_each_type skips those. There is some more cleanups for leftovers that I avoided cleaning to reduce this changeset. And also while doing this I saw that enums can appear without any enumerators and that an array with DW_TAG_GNU_vector is actually a different tag, encoded this way till we get to DWARF4 ;-) So now we don't have to lookup on a hash table looking for DWARF offsets, we can do the more sensible thing of just indexing the types_tags array. Now to do some cleanups and try to get the per cu encoder done. Then order all the cus per number of type entries, pick the one with more, then go on merging/recoding the types of the others and putting the parent linkage in place. Just to show the extent of the changes: $ codiff /tmp/libdwarves.so.1.0.0 build/libdwarves.so.1.0.0 /home/acme/git/pahole/dwarves.c: struct cu | -4048 struct tag | -32 struct ptr_to_member_type | -32 struct namespace | -32 struct type | -32 struct class | -32 struct base_type | -32 struct array_type | -32 struct class_member | -32 struct lexblock | -32 struct ftype | -32 struct function | -64 struct parameter | -32 struct variable | -32 struct inline_expansion | -32 struct label | -32 struct enumerator | -32 17 structs changed tag__follow_typedef | +3 tag__fprintf_decl_info | +25 array_type__fprintf | +6 type__name | -126 type__find_first_biggest_size_base_type_member | -3 typedef__fprintf | +16 imported_declaration__fprintf | +6 imported_module__fprintf | +3 cu__new | +26 cu__delete | +26 hashtags__hash | -65 hash_64 | -124 hlist_add_head | -78 hashtags__find | -157 cu__hash | -80 cu__add_tag | +20 tag__prefix | -3 cu__find_tag_by_id | -2 cu__find_type_by_id | -3 cu__find_first_typedef_of_type | +38 cu__find_base_type_by_name | +68 cu__find_base_type_by_name_and_size | +72 cu__find_struct_by_name | +59 cus__find_struct_by_name | +8 cus__find_tag_by_id | +5 cus__find_cu_by_name | -6 lexblock__find_tag_by_id | -173 cu__find_variable_by_id | -197 list__find_tag_by_id | -308 cu__find_parameter_by_id | -60 tag__ptr_name | +6 tag__name | +15 variable__type | +13 variable__name | +7 class_member__size | +6 parameter__name | -119 tag__parameter | -14 parameter__type | -143 type__fprintf | -29 union__fprintf | +6 class__add_vtable_entry | -9 type__add_member | -6 type__clone_members | -3 enumeration__add | -6 function__name | -156 ftype__has_parm_of_type | -39 class__find_holes | -27 class__has_hole_ge | -3 type__nr_members_of_type | +3 lexblock__account_inline_expansions | +3 cu__account_inline_expansions | -18 ftype__fprintf_parms | +46 function__tag_fprintf | +24 lexblock__fprintf | -6 ftype__fprintf | +3 function__fprintf_stats | -18 function__size | -6 class__vtable_fprintf | -11 class__fprintf | -21 tag__fprintf | -35 60 functions changed, 513 bytes added, 2054 bytes removed, diff: -1541 /home/acme/git/pahole/ctf_loader.c: struct ctf_short_type | +0 14 structs changed type__init | -14 type__new | -9 class__new | -12 create_new_base_type | -7 create_new_base_type_float | -7 create_new_array | -8 create_new_subroutine_type | -9 create_full_members | -18 create_short_members | -18 create_new_class | +1 create_new_union | +1 create_new_enumeration | -19 create_new_forward_decl | -2 create_new_typedef | +3 create_new_tag | -5 load_types | +16 class__fixup_ctf_bitfields | -3 17 functions changed, 21 bytes added, 131 bytes removed, diff: -110 /home/acme/git/pahole/dwarf_loader.c: 17 structs changed zalloc | -56 tag__init | +3 array_type__new | +20 type__init | -24 class_member__new | +46 inline_expansion__new | +12 class__new | +81 lexblock__init | +19 function__new | +43 die__create_new_array | +20 die__create_new_parameter | +4 die__create_new_label | +4 die__create_new_subroutine_type | +113 die__create_new_enumeration | -21 die__process_class | +79 die__process_namespace | +76 die__create_new_inline_expansion | +4 die__process_function | +147 __die__process_tag | +34 die__process_unit | +56 die__process | +90 21 functions changed, 851 bytes added, 101 bytes removed, diff: +750 /home/acme/git/pahole/dwarves.c: struct ptr_table | +16 struct cu_orig_info | +32 2 structs changed tag__decl_line | +68 tag__decl_file | +70 tag__orig_id | +71 ptr_table__init | +46 ptr_table__exit | +37 ptr_table__add | +183 ptr_table__add_with_id | +165 ptr_table__entry | +64 cu__table_add_tag | +171 cu__table_nullify_type_entry | +38 10 functions changed, 913 bytes added, diff: +913 /home/acme/git/pahole/ctf_loader.c: 2 structs changed tag__alloc | +52 1 function changed, 52 bytes added, diff: +52 /home/acme/git/pahole/dwarf_loader.c: struct dwarf_tag | +48 struct dwarf_cu | +4104 4 structs changed dwarf_cu__init | +83 hashtags__hash | +61 hash_64 | +124 hlist_add_head | +78 hashtags__find | +161 cu__hash | +95 tag__is_tag_type | +171 tag__is_type | +85 tag__is_union | +28 tag__is_struct | +57 tag__is_typedef | +28 tag__is_enumeration | +28 dwarf_cu__find_tag_by_id | +56 dwarf_cu__find_type_by_id | +63 tag__alloc | +114 __tag__print_type_not_found | +108 namespace__recode_dwarf_types | +346 tag__namespace | +14 tag__has_namespace | +86 tag__is_namespace | +28 type__recode_dwarf_specification | +182 tag__type | +14 __tag__print_abstract_origin_not_found | +105 ftype__recode_dwarf_types | +322 tag__ftype | +14 tag__parameter | +14 lexblock__recode_dwarf_types | +736 tag__lexblock | +14 tag__label | +14 tag__recode_dwarf_type | +766 tag__ptr_to_member_type | +14 cu__recode_dwarf_types_table | +88 cu__recode_dwarf_types | +48 dwarf_tag__decl_file | +77 strings__ptr | +33 dwarf_tag__decl_line | +59 dwarf_tag__orig_id | +59 dwarf_tag__orig_type | +59 38 functions changed, 4432 bytes added, diff: +4432 build/libdwarves.so.1.0.0: 147 functions changed, 6782 bytes added, 2286 bytes removed, diff: +4496 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2009-03-06 00:29:35 +01:00
if (name == NULL)
printf("anonymous base_type\n");
else
dwarves: Remove some more DWARF details from the core Had to be a big sweeping change, but the regression tests shows just improvements :-) Now we stop using an id in struct tag, only storing the type, that now uses 16 bits only, as CTF does. Each format loader has to go on adding the types to the core, that figures out if it is a tag that can be on the tag->type field (tag__is_tag_type). Formats that already have the types separated and in sequence, such as CTF, just ask the core to insert in the types_table directly with its original ID. For DWARF, we ask the core to put it on the table, in sequence, and return the index, that is then stashed with the DWARF specific info (original id, type, decl_line, etc) and hashed by the original id. Later we recode everything, looking up via the original type, getting the small_id to put on the tag->type. The underlying debugging info not needed by the core is stashed in tag->priv, and the DWARF loader now just allocates sizeof(struct dwarf_tag) at the end of the core tag and points it there, and makes that info available thru cu->orig_info. In the future we can ask, when loading a cu, that this info be trown away, so that we reduce the memory footprint for big multi-cu files such as the Linux kernel. There is also a routine to ask for inserting a NULL, as we still have bugs in the CTF decoding and thus some entries are being lost, to avoid using an undefined pointer when traversing the types_table the ctf loader puts a NULL there via cu__table_nullify_type_entry() and then cu__for_each_type skips those. There is some more cleanups for leftovers that I avoided cleaning to reduce this changeset. And also while doing this I saw that enums can appear without any enumerators and that an array with DW_TAG_GNU_vector is actually a different tag, encoded this way till we get to DWARF4 ;-) So now we don't have to lookup on a hash table looking for DWARF offsets, we can do the more sensible thing of just indexing the types_tags array. Now to do some cleanups and try to get the per cu encoder done. Then order all the cus per number of type entries, pick the one with more, then go on merging/recoding the types of the others and putting the parent linkage in place. Just to show the extent of the changes: $ codiff /tmp/libdwarves.so.1.0.0 build/libdwarves.so.1.0.0 /home/acme/git/pahole/dwarves.c: struct cu | -4048 struct tag | -32 struct ptr_to_member_type | -32 struct namespace | -32 struct type | -32 struct class | -32 struct base_type | -32 struct array_type | -32 struct class_member | -32 struct lexblock | -32 struct ftype | -32 struct function | -64 struct parameter | -32 struct variable | -32 struct inline_expansion | -32 struct label | -32 struct enumerator | -32 17 structs changed tag__follow_typedef | +3 tag__fprintf_decl_info | +25 array_type__fprintf | +6 type__name | -126 type__find_first_biggest_size_base_type_member | -3 typedef__fprintf | +16 imported_declaration__fprintf | +6 imported_module__fprintf | +3 cu__new | +26 cu__delete | +26 hashtags__hash | -65 hash_64 | -124 hlist_add_head | -78 hashtags__find | -157 cu__hash | -80 cu__add_tag | +20 tag__prefix | -3 cu__find_tag_by_id | -2 cu__find_type_by_id | -3 cu__find_first_typedef_of_type | +38 cu__find_base_type_by_name | +68 cu__find_base_type_by_name_and_size | +72 cu__find_struct_by_name | +59 cus__find_struct_by_name | +8 cus__find_tag_by_id | +5 cus__find_cu_by_name | -6 lexblock__find_tag_by_id | -173 cu__find_variable_by_id | -197 list__find_tag_by_id | -308 cu__find_parameter_by_id | -60 tag__ptr_name | +6 tag__name | +15 variable__type | +13 variable__name | +7 class_member__size | +6 parameter__name | -119 tag__parameter | -14 parameter__type | -143 type__fprintf | -29 union__fprintf | +6 class__add_vtable_entry | -9 type__add_member | -6 type__clone_members | -3 enumeration__add | -6 function__name | -156 ftype__has_parm_of_type | -39 class__find_holes | -27 class__has_hole_ge | -3 type__nr_members_of_type | +3 lexblock__account_inline_expansions | +3 cu__account_inline_expansions | -18 ftype__fprintf_parms | +46 function__tag_fprintf | +24 lexblock__fprintf | -6 ftype__fprintf | +3 function__fprintf_stats | -18 function__size | -6 class__vtable_fprintf | -11 class__fprintf | -21 tag__fprintf | -35 60 functions changed, 513 bytes added, 2054 bytes removed, diff: -1541 /home/acme/git/pahole/ctf_loader.c: struct ctf_short_type | +0 14 structs changed type__init | -14 type__new | -9 class__new | -12 create_new_base_type | -7 create_new_base_type_float | -7 create_new_array | -8 create_new_subroutine_type | -9 create_full_members | -18 create_short_members | -18 create_new_class | +1 create_new_union | +1 create_new_enumeration | -19 create_new_forward_decl | -2 create_new_typedef | +3 create_new_tag | -5 load_types | +16 class__fixup_ctf_bitfields | -3 17 functions changed, 21 bytes added, 131 bytes removed, diff: -110 /home/acme/git/pahole/dwarf_loader.c: 17 structs changed zalloc | -56 tag__init | +3 array_type__new | +20 type__init | -24 class_member__new | +46 inline_expansion__new | +12 class__new | +81 lexblock__init | +19 function__new | +43 die__create_new_array | +20 die__create_new_parameter | +4 die__create_new_label | +4 die__create_new_subroutine_type | +113 die__create_new_enumeration | -21 die__process_class | +79 die__process_namespace | +76 die__create_new_inline_expansion | +4 die__process_function | +147 __die__process_tag | +34 die__process_unit | +56 die__process | +90 21 functions changed, 851 bytes added, 101 bytes removed, diff: +750 /home/acme/git/pahole/dwarves.c: struct ptr_table | +16 struct cu_orig_info | +32 2 structs changed tag__decl_line | +68 tag__decl_file | +70 tag__orig_id | +71 ptr_table__init | +46 ptr_table__exit | +37 ptr_table__add | +183 ptr_table__add_with_id | +165 ptr_table__entry | +64 cu__table_add_tag | +171 cu__table_nullify_type_entry | +38 10 functions changed, 913 bytes added, diff: +913 /home/acme/git/pahole/ctf_loader.c: 2 structs changed tag__alloc | +52 1 function changed, 52 bytes added, diff: +52 /home/acme/git/pahole/dwarf_loader.c: struct dwarf_tag | +48 struct dwarf_cu | +4104 4 structs changed dwarf_cu__init | +83 hashtags__hash | +61 hash_64 | +124 hlist_add_head | +78 hashtags__find | +161 cu__hash | +95 tag__is_tag_type | +171 tag__is_type | +85 tag__is_union | +28 tag__is_struct | +57 tag__is_typedef | +28 tag__is_enumeration | +28 dwarf_cu__find_tag_by_id | +56 dwarf_cu__find_type_by_id | +63 tag__alloc | +114 __tag__print_type_not_found | +108 namespace__recode_dwarf_types | +346 tag__namespace | +14 tag__has_namespace | +86 tag__is_namespace | +28 type__recode_dwarf_specification | +182 tag__type | +14 __tag__print_abstract_origin_not_found | +105 ftype__recode_dwarf_types | +322 tag__ftype | +14 tag__parameter | +14 lexblock__recode_dwarf_types | +736 tag__lexblock | +14 tag__label | +14 tag__recode_dwarf_type | +766 tag__ptr_to_member_type | +14 cu__recode_dwarf_types_table | +88 cu__recode_dwarf_types | +48 dwarf_tag__decl_file | +77 strings__ptr | +33 dwarf_tag__decl_line | +59 dwarf_tag__orig_id | +59 dwarf_tag__orig_type | +59 38 functions changed, 4432 bytes added, diff: +4432 build/libdwarves.so.1.0.0: 147 functions changed, 6782 bytes added, 2286 bytes removed, diff: +4496 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2009-03-06 00:29:35 +01:00
puts(name);
} else if (tag__is_pointer(tag))
printf(" /* pointer to %lld */\n", (unsigned long long)tag->type);
dwarves: Remove some more DWARF details from the core Had to be a big sweeping change, but the regression tests shows just improvements :-) Now we stop using an id in struct tag, only storing the type, that now uses 16 bits only, as CTF does. Each format loader has to go on adding the types to the core, that figures out if it is a tag that can be on the tag->type field (tag__is_tag_type). Formats that already have the types separated and in sequence, such as CTF, just ask the core to insert in the types_table directly with its original ID. For DWARF, we ask the core to put it on the table, in sequence, and return the index, that is then stashed with the DWARF specific info (original id, type, decl_line, etc) and hashed by the original id. Later we recode everything, looking up via the original type, getting the small_id to put on the tag->type. The underlying debugging info not needed by the core is stashed in tag->priv, and the DWARF loader now just allocates sizeof(struct dwarf_tag) at the end of the core tag and points it there, and makes that info available thru cu->orig_info. In the future we can ask, when loading a cu, that this info be trown away, so that we reduce the memory footprint for big multi-cu files such as the Linux kernel. There is also a routine to ask for inserting a NULL, as we still have bugs in the CTF decoding and thus some entries are being lost, to avoid using an undefined pointer when traversing the types_table the ctf loader puts a NULL there via cu__table_nullify_type_entry() and then cu__for_each_type skips those. There is some more cleanups for leftovers that I avoided cleaning to reduce this changeset. And also while doing this I saw that enums can appear without any enumerators and that an array with DW_TAG_GNU_vector is actually a different tag, encoded this way till we get to DWARF4 ;-) So now we don't have to lookup on a hash table looking for DWARF offsets, we can do the more sensible thing of just indexing the types_tags array. Now to do some cleanups and try to get the per cu encoder done. Then order all the cus per number of type entries, pick the one with more, then go on merging/recoding the types of the others and putting the parent linkage in place. Just to show the extent of the changes: $ codiff /tmp/libdwarves.so.1.0.0 build/libdwarves.so.1.0.0 /home/acme/git/pahole/dwarves.c: struct cu | -4048 struct tag | -32 struct ptr_to_member_type | -32 struct namespace | -32 struct type | -32 struct class | -32 struct base_type | -32 struct array_type | -32 struct class_member | -32 struct lexblock | -32 struct ftype | -32 struct function | -64 struct parameter | -32 struct variable | -32 struct inline_expansion | -32 struct label | -32 struct enumerator | -32 17 structs changed tag__follow_typedef | +3 tag__fprintf_decl_info | +25 array_type__fprintf | +6 type__name | -126 type__find_first_biggest_size_base_type_member | -3 typedef__fprintf | +16 imported_declaration__fprintf | +6 imported_module__fprintf | +3 cu__new | +26 cu__delete | +26 hashtags__hash | -65 hash_64 | -124 hlist_add_head | -78 hashtags__find | -157 cu__hash | -80 cu__add_tag | +20 tag__prefix | -3 cu__find_tag_by_id | -2 cu__find_type_by_id | -3 cu__find_first_typedef_of_type | +38 cu__find_base_type_by_name | +68 cu__find_base_type_by_name_and_size | +72 cu__find_struct_by_name | +59 cus__find_struct_by_name | +8 cus__find_tag_by_id | +5 cus__find_cu_by_name | -6 lexblock__find_tag_by_id | -173 cu__find_variable_by_id | -197 list__find_tag_by_id | -308 cu__find_parameter_by_id | -60 tag__ptr_name | +6 tag__name | +15 variable__type | +13 variable__name | +7 class_member__size | +6 parameter__name | -119 tag__parameter | -14 parameter__type | -143 type__fprintf | -29 union__fprintf | +6 class__add_vtable_entry | -9 type__add_member | -6 type__clone_members | -3 enumeration__add | -6 function__name | -156 ftype__has_parm_of_type | -39 class__find_holes | -27 class__has_hole_ge | -3 type__nr_members_of_type | +3 lexblock__account_inline_expansions | +3 cu__account_inline_expansions | -18 ftype__fprintf_parms | +46 function__tag_fprintf | +24 lexblock__fprintf | -6 ftype__fprintf | +3 function__fprintf_stats | -18 function__size | -6 class__vtable_fprintf | -11 class__fprintf | -21 tag__fprintf | -35 60 functions changed, 513 bytes added, 2054 bytes removed, diff: -1541 /home/acme/git/pahole/ctf_loader.c: struct ctf_short_type | +0 14 structs changed type__init | -14 type__new | -9 class__new | -12 create_new_base_type | -7 create_new_base_type_float | -7 create_new_array | -8 create_new_subroutine_type | -9 create_full_members | -18 create_short_members | -18 create_new_class | +1 create_new_union | +1 create_new_enumeration | -19 create_new_forward_decl | -2 create_new_typedef | +3 create_new_tag | -5 load_types | +16 class__fixup_ctf_bitfields | -3 17 functions changed, 21 bytes added, 131 bytes removed, diff: -110 /home/acme/git/pahole/dwarf_loader.c: 17 structs changed zalloc | -56 tag__init | +3 array_type__new | +20 type__init | -24 class_member__new | +46 inline_expansion__new | +12 class__new | +81 lexblock__init | +19 function__new | +43 die__create_new_array | +20 die__create_new_parameter | +4 die__create_new_label | +4 die__create_new_subroutine_type | +113 die__create_new_enumeration | -21 die__process_class | +79 die__process_namespace | +76 die__create_new_inline_expansion | +4 die__process_function | +147 __die__process_tag | +34 die__process_unit | +56 die__process | +90 21 functions changed, 851 bytes added, 101 bytes removed, diff: +750 /home/acme/git/pahole/dwarves.c: struct ptr_table | +16 struct cu_orig_info | +32 2 structs changed tag__decl_line | +68 tag__decl_file | +70 tag__orig_id | +71 ptr_table__init | +46 ptr_table__exit | +37 ptr_table__add | +183 ptr_table__add_with_id | +165 ptr_table__entry | +64 cu__table_add_tag | +171 cu__table_nullify_type_entry | +38 10 functions changed, 913 bytes added, diff: +913 /home/acme/git/pahole/ctf_loader.c: 2 structs changed tag__alloc | +52 1 function changed, 52 bytes added, diff: +52 /home/acme/git/pahole/dwarf_loader.c: struct dwarf_tag | +48 struct dwarf_cu | +4104 4 structs changed dwarf_cu__init | +83 hashtags__hash | +61 hash_64 | +124 hlist_add_head | +78 hashtags__find | +161 cu__hash | +95 tag__is_tag_type | +171 tag__is_type | +85 tag__is_union | +28 tag__is_struct | +57 tag__is_typedef | +28 tag__is_enumeration | +28 dwarf_cu__find_tag_by_id | +56 dwarf_cu__find_type_by_id | +63 tag__alloc | +114 __tag__print_type_not_found | +108 namespace__recode_dwarf_types | +346 tag__namespace | +14 tag__has_namespace | +86 tag__is_namespace | +28 type__recode_dwarf_specification | +182 tag__type | +14 __tag__print_abstract_origin_not_found | +105 ftype__recode_dwarf_types | +322 tag__ftype | +14 tag__parameter | +14 lexblock__recode_dwarf_types | +736 tag__lexblock | +14 tag__label | +14 tag__recode_dwarf_type | +766 tag__ptr_to_member_type | +14 cu__recode_dwarf_types_table | +88 cu__recode_dwarf_types | +48 dwarf_tag__decl_file | +77 strings__ptr | +33 dwarf_tag__decl_line | +59 dwarf_tag__orig_id | +59 dwarf_tag__orig_type | +59 38 functions changed, 4432 bytes added, diff: +4432 build/libdwarves.so.1.0.0: 147 functions changed, 6782 bytes added, 2286 bytes removed, diff: +4496 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2009-03-06 00:29:35 +01:00
else
tag__fprintf(tag, cu, &conf, stdout);
dwarves: Remove some more DWARF details from the core Had to be a big sweeping change, but the regression tests shows just improvements :-) Now we stop using an id in struct tag, only storing the type, that now uses 16 bits only, as CTF does. Each format loader has to go on adding the types to the core, that figures out if it is a tag that can be on the tag->type field (tag__is_tag_type). Formats that already have the types separated and in sequence, such as CTF, just ask the core to insert in the types_table directly with its original ID. For DWARF, we ask the core to put it on the table, in sequence, and return the index, that is then stashed with the DWARF specific info (original id, type, decl_line, etc) and hashed by the original id. Later we recode everything, looking up via the original type, getting the small_id to put on the tag->type. The underlying debugging info not needed by the core is stashed in tag->priv, and the DWARF loader now just allocates sizeof(struct dwarf_tag) at the end of the core tag and points it there, and makes that info available thru cu->orig_info. In the future we can ask, when loading a cu, that this info be trown away, so that we reduce the memory footprint for big multi-cu files such as the Linux kernel. There is also a routine to ask for inserting a NULL, as we still have bugs in the CTF decoding and thus some entries are being lost, to avoid using an undefined pointer when traversing the types_table the ctf loader puts a NULL there via cu__table_nullify_type_entry() and then cu__for_each_type skips those. There is some more cleanups for leftovers that I avoided cleaning to reduce this changeset. And also while doing this I saw that enums can appear without any enumerators and that an array with DW_TAG_GNU_vector is actually a different tag, encoded this way till we get to DWARF4 ;-) So now we don't have to lookup on a hash table looking for DWARF offsets, we can do the more sensible thing of just indexing the types_tags array. Now to do some cleanups and try to get the per cu encoder done. Then order all the cus per number of type entries, pick the one with more, then go on merging/recoding the types of the others and putting the parent linkage in place. Just to show the extent of the changes: $ codiff /tmp/libdwarves.so.1.0.0 build/libdwarves.so.1.0.0 /home/acme/git/pahole/dwarves.c: struct cu | -4048 struct tag | -32 struct ptr_to_member_type | -32 struct namespace | -32 struct type | -32 struct class | -32 struct base_type | -32 struct array_type | -32 struct class_member | -32 struct lexblock | -32 struct ftype | -32 struct function | -64 struct parameter | -32 struct variable | -32 struct inline_expansion | -32 struct label | -32 struct enumerator | -32 17 structs changed tag__follow_typedef | +3 tag__fprintf_decl_info | +25 array_type__fprintf | +6 type__name | -126 type__find_first_biggest_size_base_type_member | -3 typedef__fprintf | +16 imported_declaration__fprintf | +6 imported_module__fprintf | +3 cu__new | +26 cu__delete | +26 hashtags__hash | -65 hash_64 | -124 hlist_add_head | -78 hashtags__find | -157 cu__hash | -80 cu__add_tag | +20 tag__prefix | -3 cu__find_tag_by_id | -2 cu__find_type_by_id | -3 cu__find_first_typedef_of_type | +38 cu__find_base_type_by_name | +68 cu__find_base_type_by_name_and_size | +72 cu__find_struct_by_name | +59 cus__find_struct_by_name | +8 cus__find_tag_by_id | +5 cus__find_cu_by_name | -6 lexblock__find_tag_by_id | -173 cu__find_variable_by_id | -197 list__find_tag_by_id | -308 cu__find_parameter_by_id | -60 tag__ptr_name | +6 tag__name | +15 variable__type | +13 variable__name | +7 class_member__size | +6 parameter__name | -119 tag__parameter | -14 parameter__type | -143 type__fprintf | -29 union__fprintf | +6 class__add_vtable_entry | -9 type__add_member | -6 type__clone_members | -3 enumeration__add | -6 function__name | -156 ftype__has_parm_of_type | -39 class__find_holes | -27 class__has_hole_ge | -3 type__nr_members_of_type | +3 lexblock__account_inline_expansions | +3 cu__account_inline_expansions | -18 ftype__fprintf_parms | +46 function__tag_fprintf | +24 lexblock__fprintf | -6 ftype__fprintf | +3 function__fprintf_stats | -18 function__size | -6 class__vtable_fprintf | -11 class__fprintf | -21 tag__fprintf | -35 60 functions changed, 513 bytes added, 2054 bytes removed, diff: -1541 /home/acme/git/pahole/ctf_loader.c: struct ctf_short_type | +0 14 structs changed type__init | -14 type__new | -9 class__new | -12 create_new_base_type | -7 create_new_base_type_float | -7 create_new_array | -8 create_new_subroutine_type | -9 create_full_members | -18 create_short_members | -18 create_new_class | +1 create_new_union | +1 create_new_enumeration | -19 create_new_forward_decl | -2 create_new_typedef | +3 create_new_tag | -5 load_types | +16 class__fixup_ctf_bitfields | -3 17 functions changed, 21 bytes added, 131 bytes removed, diff: -110 /home/acme/git/pahole/dwarf_loader.c: 17 structs changed zalloc | -56 tag__init | +3 array_type__new | +20 type__init | -24 class_member__new | +46 inline_expansion__new | +12 class__new | +81 lexblock__init | +19 function__new | +43 die__create_new_array | +20 die__create_new_parameter | +4 die__create_new_label | +4 die__create_new_subroutine_type | +113 die__create_new_enumeration | -21 die__process_class | +79 die__process_namespace | +76 die__create_new_inline_expansion | +4 die__process_function | +147 __die__process_tag | +34 die__process_unit | +56 die__process | +90 21 functions changed, 851 bytes added, 101 bytes removed, diff: +750 /home/acme/git/pahole/dwarves.c: struct ptr_table | +16 struct cu_orig_info | +32 2 structs changed tag__decl_line | +68 tag__decl_file | +70 tag__orig_id | +71 ptr_table__init | +46 ptr_table__exit | +37 ptr_table__add | +183 ptr_table__add_with_id | +165 ptr_table__entry | +64 cu__table_add_tag | +171 cu__table_nullify_type_entry | +38 10 functions changed, 913 bytes added, diff: +913 /home/acme/git/pahole/ctf_loader.c: 2 structs changed tag__alloc | +52 1 function changed, 52 bytes added, diff: +52 /home/acme/git/pahole/dwarf_loader.c: struct dwarf_tag | +48 struct dwarf_cu | +4104 4 structs changed dwarf_cu__init | +83 hashtags__hash | +61 hash_64 | +124 hlist_add_head | +78 hashtags__find | +161 cu__hash | +95 tag__is_tag_type | +171 tag__is_type | +85 tag__is_union | +28 tag__is_struct | +57 tag__is_typedef | +28 tag__is_enumeration | +28 dwarf_cu__find_tag_by_id | +56 dwarf_cu__find_type_by_id | +63 tag__alloc | +114 __tag__print_type_not_found | +108 namespace__recode_dwarf_types | +346 tag__namespace | +14 tag__has_namespace | +86 tag__is_namespace | +28 type__recode_dwarf_specification | +182 tag__type | +14 __tag__print_abstract_origin_not_found | +105 ftype__recode_dwarf_types | +322 tag__ftype | +14 tag__parameter | +14 lexblock__recode_dwarf_types | +736 tag__lexblock | +14 tag__label | +14 tag__recode_dwarf_type | +766 tag__ptr_to_member_type | +14 cu__recode_dwarf_types_table | +88 cu__recode_dwarf_types | +48 dwarf_tag__decl_file | +77 strings__ptr | +33 dwarf_tag__decl_line | +59 dwarf_tag__orig_id | +59 dwarf_tag__orig_type | +59 38 functions changed, 4432 bytes added, diff: +4432 build/libdwarves.so.1.0.0: 147 functions changed, 6782 bytes added, 2286 bytes removed, diff: +4496 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2009-03-06 00:29:35 +01:00
printf(" /* size: %zd */\n\n", tag__size(tag, cu));
}
static int cu__emit_tags(struct cu *cu)
{
uint32_t i;
struct tag *tag;
dwarves: Remove some more DWARF details from the core Had to be a big sweeping change, but the regression tests shows just improvements :-) Now we stop using an id in struct tag, only storing the type, that now uses 16 bits only, as CTF does. Each format loader has to go on adding the types to the core, that figures out if it is a tag that can be on the tag->type field (tag__is_tag_type). Formats that already have the types separated and in sequence, such as CTF, just ask the core to insert in the types_table directly with its original ID. For DWARF, we ask the core to put it on the table, in sequence, and return the index, that is then stashed with the DWARF specific info (original id, type, decl_line, etc) and hashed by the original id. Later we recode everything, looking up via the original type, getting the small_id to put on the tag->type. The underlying debugging info not needed by the core is stashed in tag->priv, and the DWARF loader now just allocates sizeof(struct dwarf_tag) at the end of the core tag and points it there, and makes that info available thru cu->orig_info. In the future we can ask, when loading a cu, that this info be trown away, so that we reduce the memory footprint for big multi-cu files such as the Linux kernel. There is also a routine to ask for inserting a NULL, as we still have bugs in the CTF decoding and thus some entries are being lost, to avoid using an undefined pointer when traversing the types_table the ctf loader puts a NULL there via cu__table_nullify_type_entry() and then cu__for_each_type skips those. There is some more cleanups for leftovers that I avoided cleaning to reduce this changeset. And also while doing this I saw that enums can appear without any enumerators and that an array with DW_TAG_GNU_vector is actually a different tag, encoded this way till we get to DWARF4 ;-) So now we don't have to lookup on a hash table looking for DWARF offsets, we can do the more sensible thing of just indexing the types_tags array. Now to do some cleanups and try to get the per cu encoder done. Then order all the cus per number of type entries, pick the one with more, then go on merging/recoding the types of the others and putting the parent linkage in place. Just to show the extent of the changes: $ codiff /tmp/libdwarves.so.1.0.0 build/libdwarves.so.1.0.0 /home/acme/git/pahole/dwarves.c: struct cu | -4048 struct tag | -32 struct ptr_to_member_type | -32 struct namespace | -32 struct type | -32 struct class | -32 struct base_type | -32 struct array_type | -32 struct class_member | -32 struct lexblock | -32 struct ftype | -32 struct function | -64 struct parameter | -32 struct variable | -32 struct inline_expansion | -32 struct label | -32 struct enumerator | -32 17 structs changed tag__follow_typedef | +3 tag__fprintf_decl_info | +25 array_type__fprintf | +6 type__name | -126 type__find_first_biggest_size_base_type_member | -3 typedef__fprintf | +16 imported_declaration__fprintf | +6 imported_module__fprintf | +3 cu__new | +26 cu__delete | +26 hashtags__hash | -65 hash_64 | -124 hlist_add_head | -78 hashtags__find | -157 cu__hash | -80 cu__add_tag | +20 tag__prefix | -3 cu__find_tag_by_id | -2 cu__find_type_by_id | -3 cu__find_first_typedef_of_type | +38 cu__find_base_type_by_name | +68 cu__find_base_type_by_name_and_size | +72 cu__find_struct_by_name | +59 cus__find_struct_by_name | +8 cus__find_tag_by_id | +5 cus__find_cu_by_name | -6 lexblock__find_tag_by_id | -173 cu__find_variable_by_id | -197 list__find_tag_by_id | -308 cu__find_parameter_by_id | -60 tag__ptr_name | +6 tag__name | +15 variable__type | +13 variable__name | +7 class_member__size | +6 parameter__name | -119 tag__parameter | -14 parameter__type | -143 type__fprintf | -29 union__fprintf | +6 class__add_vtable_entry | -9 type__add_member | -6 type__clone_members | -3 enumeration__add | -6 function__name | -156 ftype__has_parm_of_type | -39 class__find_holes | -27 class__has_hole_ge | -3 type__nr_members_of_type | +3 lexblock__account_inline_expansions | +3 cu__account_inline_expansions | -18 ftype__fprintf_parms | +46 function__tag_fprintf | +24 lexblock__fprintf | -6 ftype__fprintf | +3 function__fprintf_stats | -18 function__size | -6 class__vtable_fprintf | -11 class__fprintf | -21 tag__fprintf | -35 60 functions changed, 513 bytes added, 2054 bytes removed, diff: -1541 /home/acme/git/pahole/ctf_loader.c: struct ctf_short_type | +0 14 structs changed type__init | -14 type__new | -9 class__new | -12 create_new_base_type | -7 create_new_base_type_float | -7 create_new_array | -8 create_new_subroutine_type | -9 create_full_members | -18 create_short_members | -18 create_new_class | +1 create_new_union | +1 create_new_enumeration | -19 create_new_forward_decl | -2 create_new_typedef | +3 create_new_tag | -5 load_types | +16 class__fixup_ctf_bitfields | -3 17 functions changed, 21 bytes added, 131 bytes removed, diff: -110 /home/acme/git/pahole/dwarf_loader.c: 17 structs changed zalloc | -56 tag__init | +3 array_type__new | +20 type__init | -24 class_member__new | +46 inline_expansion__new | +12 class__new | +81 lexblock__init | +19 function__new | +43 die__create_new_array | +20 die__create_new_parameter | +4 die__create_new_label | +4 die__create_new_subroutine_type | +113 die__create_new_enumeration | -21 die__process_class | +79 die__process_namespace | +76 die__create_new_inline_expansion | +4 die__process_function | +147 __die__process_tag | +34 die__process_unit | +56 die__process | +90 21 functions changed, 851 bytes added, 101 bytes removed, diff: +750 /home/acme/git/pahole/dwarves.c: struct ptr_table | +16 struct cu_orig_info | +32 2 structs changed tag__decl_line | +68 tag__decl_file | +70 tag__orig_id | +71 ptr_table__init | +46 ptr_table__exit | +37 ptr_table__add | +183 ptr_table__add_with_id | +165 ptr_table__entry | +64 cu__table_add_tag | +171 cu__table_nullify_type_entry | +38 10 functions changed, 913 bytes added, diff: +913 /home/acme/git/pahole/ctf_loader.c: 2 structs changed tag__alloc | +52 1 function changed, 52 bytes added, diff: +52 /home/acme/git/pahole/dwarf_loader.c: struct dwarf_tag | +48 struct dwarf_cu | +4104 4 structs changed dwarf_cu__init | +83 hashtags__hash | +61 hash_64 | +124 hlist_add_head | +78 hashtags__find | +161 cu__hash | +95 tag__is_tag_type | +171 tag__is_type | +85 tag__is_union | +28 tag__is_struct | +57 tag__is_typedef | +28 tag__is_enumeration | +28 dwarf_cu__find_tag_by_id | +56 dwarf_cu__find_type_by_id | +63 tag__alloc | +114 __tag__print_type_not_found | +108 namespace__recode_dwarf_types | +346 tag__namespace | +14 tag__has_namespace | +86 tag__is_namespace | +28 type__recode_dwarf_specification | +182 tag__type | +14 __tag__print_abstract_origin_not_found | +105 ftype__recode_dwarf_types | +322 tag__ftype | +14 tag__parameter | +14 lexblock__recode_dwarf_types | +736 tag__lexblock | +14 tag__label | +14 tag__recode_dwarf_type | +766 tag__ptr_to_member_type | +14 cu__recode_dwarf_types_table | +88 cu__recode_dwarf_types | +48 dwarf_tag__decl_file | +77 strings__ptr | +33 dwarf_tag__decl_line | +59 dwarf_tag__orig_id | +59 dwarf_tag__orig_type | +59 38 functions changed, 4432 bytes added, diff: +4432 build/libdwarves.so.1.0.0: 147 functions changed, 6782 bytes added, 2286 bytes removed, diff: +4496 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2009-03-06 00:29:35 +01:00
puts("/* Types: */\n");
cu__for_each_type(cu, i, tag)
emit_tag(tag, i, cu);
puts("/* Functions: */\n");
conf.no_semicolon = true;
struct function *function;
cu__for_each_function(cu, i, function) {
tag__fprintf(function__tag(function), cu, &conf, stdout);
putchar('\n');
lexblock__fprintf(&function->lexblock, cu, function, 0,
&conf, stdout);
printf(" /* size: %zd */\n\n",
tag__size(function__tag(function), cu));
dwarves: Remove some more DWARF details from the core Had to be a big sweeping change, but the regression tests shows just improvements :-) Now we stop using an id in struct tag, only storing the type, that now uses 16 bits only, as CTF does. Each format loader has to go on adding the types to the core, that figures out if it is a tag that can be on the tag->type field (tag__is_tag_type). Formats that already have the types separated and in sequence, such as CTF, just ask the core to insert in the types_table directly with its original ID. For DWARF, we ask the core to put it on the table, in sequence, and return the index, that is then stashed with the DWARF specific info (original id, type, decl_line, etc) and hashed by the original id. Later we recode everything, looking up via the original type, getting the small_id to put on the tag->type. The underlying debugging info not needed by the core is stashed in tag->priv, and the DWARF loader now just allocates sizeof(struct dwarf_tag) at the end of the core tag and points it there, and makes that info available thru cu->orig_info. In the future we can ask, when loading a cu, that this info be trown away, so that we reduce the memory footprint for big multi-cu files such as the Linux kernel. There is also a routine to ask for inserting a NULL, as we still have bugs in the CTF decoding and thus some entries are being lost, to avoid using an undefined pointer when traversing the types_table the ctf loader puts a NULL there via cu__table_nullify_type_entry() and then cu__for_each_type skips those. There is some more cleanups for leftovers that I avoided cleaning to reduce this changeset. And also while doing this I saw that enums can appear without any enumerators and that an array with DW_TAG_GNU_vector is actually a different tag, encoded this way till we get to DWARF4 ;-) So now we don't have to lookup on a hash table looking for DWARF offsets, we can do the more sensible thing of just indexing the types_tags array. Now to do some cleanups and try to get the per cu encoder done. Then order all the cus per number of type entries, pick the one with more, then go on merging/recoding the types of the others and putting the parent linkage in place. Just to show the extent of the changes: $ codiff /tmp/libdwarves.so.1.0.0 build/libdwarves.so.1.0.0 /home/acme/git/pahole/dwarves.c: struct cu | -4048 struct tag | -32 struct ptr_to_member_type | -32 struct namespace | -32 struct type | -32 struct class | -32 struct base_type | -32 struct array_type | -32 struct class_member | -32 struct lexblock | -32 struct ftype | -32 struct function | -64 struct parameter | -32 struct variable | -32 struct inline_expansion | -32 struct label | -32 struct enumerator | -32 17 structs changed tag__follow_typedef | +3 tag__fprintf_decl_info | +25 array_type__fprintf | +6 type__name | -126 type__find_first_biggest_size_base_type_member | -3 typedef__fprintf | +16 imported_declaration__fprintf | +6 imported_module__fprintf | +3 cu__new | +26 cu__delete | +26 hashtags__hash | -65 hash_64 | -124 hlist_add_head | -78 hashtags__find | -157 cu__hash | -80 cu__add_tag | +20 tag__prefix | -3 cu__find_tag_by_id | -2 cu__find_type_by_id | -3 cu__find_first_typedef_of_type | +38 cu__find_base_type_by_name | +68 cu__find_base_type_by_name_and_size | +72 cu__find_struct_by_name | +59 cus__find_struct_by_name | +8 cus__find_tag_by_id | +5 cus__find_cu_by_name | -6 lexblock__find_tag_by_id | -173 cu__find_variable_by_id | -197 list__find_tag_by_id | -308 cu__find_parameter_by_id | -60 tag__ptr_name | +6 tag__name | +15 variable__type | +13 variable__name | +7 class_member__size | +6 parameter__name | -119 tag__parameter | -14 parameter__type | -143 type__fprintf | -29 union__fprintf | +6 class__add_vtable_entry | -9 type__add_member | -6 type__clone_members | -3 enumeration__add | -6 function__name | -156 ftype__has_parm_of_type | -39 class__find_holes | -27 class__has_hole_ge | -3 type__nr_members_of_type | +3 lexblock__account_inline_expansions | +3 cu__account_inline_expansions | -18 ftype__fprintf_parms | +46 function__tag_fprintf | +24 lexblock__fprintf | -6 ftype__fprintf | +3 function__fprintf_stats | -18 function__size | -6 class__vtable_fprintf | -11 class__fprintf | -21 tag__fprintf | -35 60 functions changed, 513 bytes added, 2054 bytes removed, diff: -1541 /home/acme/git/pahole/ctf_loader.c: struct ctf_short_type | +0 14 structs changed type__init | -14 type__new | -9 class__new | -12 create_new_base_type | -7 create_new_base_type_float | -7 create_new_array | -8 create_new_subroutine_type | -9 create_full_members | -18 create_short_members | -18 create_new_class | +1 create_new_union | +1 create_new_enumeration | -19 create_new_forward_decl | -2 create_new_typedef | +3 create_new_tag | -5 load_types | +16 class__fixup_ctf_bitfields | -3 17 functions changed, 21 bytes added, 131 bytes removed, diff: -110 /home/acme/git/pahole/dwarf_loader.c: 17 structs changed zalloc | -56 tag__init | +3 array_type__new | +20 type__init | -24 class_member__new | +46 inline_expansion__new | +12 class__new | +81 lexblock__init | +19 function__new | +43 die__create_new_array | +20 die__create_new_parameter | +4 die__create_new_label | +4 die__create_new_subroutine_type | +113 die__create_new_enumeration | -21 die__process_class | +79 die__process_namespace | +76 die__create_new_inline_expansion | +4 die__process_function | +147 __die__process_tag | +34 die__process_unit | +56 die__process | +90 21 functions changed, 851 bytes added, 101 bytes removed, diff: +750 /home/acme/git/pahole/dwarves.c: struct ptr_table | +16 struct cu_orig_info | +32 2 structs changed tag__decl_line | +68 tag__decl_file | +70 tag__orig_id | +71 ptr_table__init | +46 ptr_table__exit | +37 ptr_table__add | +183 ptr_table__add_with_id | +165 ptr_table__entry | +64 cu__table_add_tag | +171 cu__table_nullify_type_entry | +38 10 functions changed, 913 bytes added, diff: +913 /home/acme/git/pahole/ctf_loader.c: 2 structs changed tag__alloc | +52 1 function changed, 52 bytes added, diff: +52 /home/acme/git/pahole/dwarf_loader.c: struct dwarf_tag | +48 struct dwarf_cu | +4104 4 structs changed dwarf_cu__init | +83 hashtags__hash | +61 hash_64 | +124 hlist_add_head | +78 hashtags__find | +161 cu__hash | +95 tag__is_tag_type | +171 tag__is_type | +85 tag__is_union | +28 tag__is_struct | +57 tag__is_typedef | +28 tag__is_enumeration | +28 dwarf_cu__find_tag_by_id | +56 dwarf_cu__find_type_by_id | +63 tag__alloc | +114 __tag__print_type_not_found | +108 namespace__recode_dwarf_types | +346 tag__namespace | +14 tag__has_namespace | +86 tag__is_namespace | +28 type__recode_dwarf_specification | +182 tag__type | +14 __tag__print_abstract_origin_not_found | +105 ftype__recode_dwarf_types | +322 tag__ftype | +14 tag__parameter | +14 lexblock__recode_dwarf_types | +736 tag__lexblock | +14 tag__label | +14 tag__recode_dwarf_type | +766 tag__ptr_to_member_type | +14 cu__recode_dwarf_types_table | +88 cu__recode_dwarf_types | +48 dwarf_tag__decl_file | +77 strings__ptr | +33 dwarf_tag__decl_line | +59 dwarf_tag__orig_id | +59 dwarf_tag__orig_type | +59 38 functions changed, 4432 bytes added, diff: +4432 build/libdwarves.so.1.0.0: 147 functions changed, 6782 bytes added, 2286 bytes removed, diff: +4496 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2009-03-06 00:29:35 +01:00
}
conf.no_semicolon = false;
puts("\n\n/* Variables: */\n");
cu__for_each_variable(cu, i, tag) {
tag__fprintf(tag, cu, NULL, stdout);
printf(" /* size: %zd */\n\n", tag__size(tag, cu));
}
return 0;
}
static enum load_steal_kind pdwtags_stealer(struct cu *cu,
struct conf_load *conf_load __unused)
{
cu__emit_tags(cu);
return LSK__DELETE;
}
static struct conf_load pdwtags_conf_load = {
.steal = pdwtags_stealer,
.conf_fprintf = &conf,
};
/* Name and version of program. */
ARGP_PROGRAM_VERSION_HOOK_DEF = dwarves_print_version;
static const struct argp_option pdwtags__options[] = {
{
.name = "format_path",
.key = 'F',
.arg = "FORMAT_LIST",
.doc = "List of debugging formats to try"
},
{
.key = 'V',
.name = "verbose",
.doc = "show details",
},
{
.name = NULL,
}
};
static error_t pdwtags__options_parser(int key, char *arg __unused,
struct argp_state *state)
{
switch (key) {
case ARGP_KEY_INIT:
if (state->child_inputs != NULL)
state->child_inputs[0] = state->input;
break;
case 'F': pdwtags_conf_load.format_path = arg; break;
case 'V': conf.show_decl_info = 1; break;
default: return ARGP_ERR_UNKNOWN;
}
return 0;
}
static const char pdwtags__args_doc[] = "FILE";
static struct argp pdwtags__argp = {
.options = pdwtags__options,
.parser = pdwtags__options_parser,
.args_doc = pdwtags__args_doc,
};
int main(int argc, char *argv[])
{
int remaining, rc = EXIT_FAILURE, err;
struct cus *cus = cus__new();
if (dwarves__init(0) || cus == NULL) {
fputs("pwdtags: insufficient memory\n", stderr);
goto out;
}
if (argp_parse(&pdwtags__argp, argc, argv, 0, &remaining, NULL) ||
remaining == argc) {
argp_help(&pdwtags__argp, stderr, ARGP_HELP_SEE, argv[0]);
goto out;
}
err = cus__load_files(cus, &pdwtags_conf_load, argv + remaining);
if (err == 0) {
rc = EXIT_SUCCESS;
goto out;
}
cus__fprintf_load_files_err(cus, "pdwtags", argv + remaining, err, stderr);
out:
cus__delete(cus);
dwarves__exit();
return rc;
}