From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tom@tromey.com>
Subject: [PATCH 25/30] Genericize addrmap handling in the DWARF index writer
Date: Wed, 25 Aug 2021 20:19:32 -0600 [thread overview]
Message-ID: <20210826021937.1490292-26-tom@tromey.com> (raw)
In-Reply-To: <20210826021937.1490292-1-tom@tromey.com>
This updates the DWARF index writing code to make the addrmap-writing
a bit more generic. Now, it can handle multiple maps, and it can work
using the maps generated by the new indexer.
Note that the new addrmap_index_data::using_index field will be
deleted in a future patch, when the rest of the DWARF psymtab code is
removed.
---
gdb/dwarf2/index-write.c | 37 ++++++++++++++++++++++++++++---------
1 file changed, 28 insertions(+), 9 deletions(-)
diff --git a/gdb/dwarf2/index-write.c b/gdb/dwarf2/index-write.c
index b73a2c64295..367db046f17 100644
--- a/gdb/dwarf2/index-write.c
+++ b/gdb/dwarf2/index-write.c
@@ -412,8 +412,11 @@ typedef std::unordered_map<dwarf2_per_cu_data *, unsigned int> cu_index_map;
/* Helper struct for building the address table. */
struct addrmap_index_data
{
- addrmap_index_data (data_buf &addr_vec_, cu_index_map &cu_index_htab_)
- : addr_vec (addr_vec_), cu_index_htab (cu_index_htab_)
+ addrmap_index_data (data_buf &addr_vec_, cu_index_map &cu_index_htab_,
+ bool using_index_)
+ : addr_vec (addr_vec_),
+ cu_index_htab (cu_index_htab_),
+ using_index (using_index_)
{}
data_buf &addr_vec;
@@ -421,6 +424,8 @@ struct addrmap_index_data
int operator() (CORE_ADDR start_addr, void *obj);
+ /* True if the DWARF reader uses the new DWARF indexer. */
+ bool using_index;
/* True if the previous_* fields are valid.
We can't write an entry until we see the next entry (since it is only then
that we know the end of the entry). */
@@ -447,7 +452,11 @@ add_address_entry (data_buf &addr_vec,
int
addrmap_index_data::operator() (CORE_ADDR start_addr, void *obj)
{
- dwarf2_psymtab *pst = (dwarf2_psymtab *) obj;
+ dwarf2_per_cu_data *per_cu;
+ if (using_index)
+ per_cu = (dwarf2_per_cu_data *) obj;
+ else
+ per_cu = obj == nullptr ? nullptr : ((dwarf2_psymtab *) obj)->per_cu_data;
if (previous_valid)
add_address_entry (addr_vec,
@@ -455,9 +464,9 @@ addrmap_index_data::operator() (CORE_ADDR start_addr, void *obj)
previous_cu_index);
previous_cu_start = start_addr;
- if (pst != NULL)
+ if (per_cu != NULL)
{
- const auto it = cu_index_htab.find (pst->per_cu_data);
+ const auto it = cu_index_htab.find (per_cu);
gdb_assert (it != cu_index_htab.cend ());
previous_cu_index = it->second;
previous_valid = true;
@@ -474,9 +483,10 @@ addrmap_index_data::operator() (CORE_ADDR start_addr, void *obj)
static void
write_address_map (struct addrmap *addrmap, data_buf &addr_vec,
- cu_index_map &cu_index_htab)
+ cu_index_map &cu_index_htab, bool using_index)
{
- struct addrmap_index_data addrmap_index_data (addr_vec, cu_index_htab);
+ struct addrmap_index_data addrmap_index_data (addr_vec, cu_index_htab,
+ using_index);
addrmap_foreach (addrmap, addrmap_index_data);
@@ -1377,8 +1387,17 @@ write_gdbindex (dwarf2_per_objfile *per_objfile, FILE *out_file,
/* Dump the address map. */
data_buf addr_vec;
- write_address_map (per_objfile->per_bfd->partial_symtabs->psymtabs_addrmap,
- addr_vec, cu_index_htab);
+ if (per_objfile->per_bfd->using_index)
+ {
+ std::vector<addrmap *> addrmaps
+ = per_objfile->per_bfd->cooked_index_table->get_addrmaps ();
+ for (auto map : addrmaps)
+ write_address_map (map, addr_vec, cu_index_htab, true);
+ }
+ else
+ write_address_map (per_objfile->per_bfd->partial_symtabs->psymtabs_addrmap,
+ addr_vec, cu_index_htab,
+ per_objfile->per_bfd->using_index);
/* Now that we've processed all symbols we can shrink their cu_indices
lists. */
--
2.31.1
next prev parent reply other threads:[~2021-08-26 2:20 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-26 2:19 [PATCH 00/30] Rewrite the DWARF "partial" reader Tom Tromey
2021-08-26 2:19 ` [PATCH 01/30] Introduce make_unique_xstrndup Tom Tromey
2021-08-26 2:19 ` [PATCH 02/30] Split create_addrmap_from_aranges Tom Tromey
2021-08-26 2:19 ` [PATCH 03/30] Add dwarf2_per_cu_data::addresses_seen Tom Tromey
2021-08-26 2:19 ` [PATCH 04/30] Refactor dwarf2_get_pc_bounds Tom Tromey
2021-08-26 2:19 ` [PATCH 05/30] Allow ada_decode not to decode operators Tom Tromey
2021-08-26 2:19 ` [PATCH 06/30] Let skip_one_die not skip children Tom Tromey
2021-08-26 2:19 ` [PATCH 07/30] Add name splitting Tom Tromey
2021-08-26 2:19 ` [PATCH 08/30] Add new overload of dwarf5_djb_hash Tom Tromey
2021-08-26 2:19 ` [PATCH 09/30] Refactor build_type_psymtabs_reader Tom Tromey
2021-08-26 2:19 ` [PATCH 10/30] Add batching parameter to parallel_for_each Tom Tromey
2021-08-26 2:19 ` [PATCH 11/30] Return vector of results from parallel_for_each Tom Tromey
2021-08-27 6:20 ` Tom de Vries
2021-08-28 19:20 ` Tom Tromey
2021-08-26 2:19 ` [PATCH 12/30] Introduce DWARF abbrev cache Tom Tromey
2021-08-26 2:19 ` [PATCH 13/30] Statically examine abbrev properties Tom Tromey
2021-09-06 22:31 ` Lancelot SIX
2021-11-04 18:00 ` Tom Tromey
2021-08-26 2:19 ` [PATCH 14/30] Update skip_one_die for new " Tom Tromey
2021-08-26 2:19 ` [PATCH 15/30] Introduce the new DWARF index class Tom Tromey
2021-09-09 23:32 ` Lancelot SIX
2021-11-04 18:03 ` Tom Tromey
2021-08-26 2:19 ` [PATCH 16/30] The new DWARF indexer Tom Tromey
2021-08-26 2:19 ` [PATCH 17/30] Implement quick_symbol_functions for cooked DWARF index Tom Tromey
2021-08-26 2:19 ` [PATCH 18/30] Wire in the new DWARF indexer Tom Tromey
2021-08-26 2:19 ` [PATCH 19/30] Pre-read DWARF section data Tom Tromey
2021-08-26 2:19 ` [PATCH 20/30] Parallelize DWARF indexing Tom Tromey
2021-08-26 2:19 ` [PATCH 21/30] "Finalize" the DWARF index in the background Tom Tromey
2021-08-26 2:19 ` [PATCH 22/30] Rename write_psymtabs_to_index Tom Tromey
2021-08-26 2:19 ` [PATCH 23/30] Change the key type in psym_index_map Tom Tromey
2021-08-26 2:19 ` [PATCH 24/30] Change parameters to write_address_map Tom Tromey
2021-08-26 2:19 ` Tom Tromey [this message]
2021-08-26 2:19 ` [PATCH 26/30] Adapt .gdb_index writer to new DWARF scanner Tom Tromey
2021-08-26 2:19 ` [PATCH 27/30] Adapt .debug_names " Tom Tromey
2021-08-26 2:19 ` [PATCH 28/30] Enable the new DWARF indexer Tom Tromey
2021-08-26 2:19 ` [PATCH 29/30] Delete DWARF psymtab code Tom Tromey
2021-08-26 2:19 ` [PATCH 30/30] Remove dwarf2_per_cu_data::v Tom Tromey
2021-08-26 20:32 ` [PATCH 00/30] Rewrite the DWARF "partial" reader Tom de Vries
2021-08-26 21:29 ` Tom Tromey
2021-08-27 7:31 ` Tom de Vries
2021-08-30 15:04 ` Tom Tromey
2021-09-06 19:46 ` Tom Tromey
2021-09-07 10:58 ` Tom de Vries
2021-09-07 12:16 ` Tom de Vries
2021-10-29 23:06 ` Tom Tromey
2021-09-09 19:00 ` Wei-min Pan
2021-09-11 21:08 ` Tom Tromey
2021-09-13 16:50 ` Weimin Pan
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