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From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Subject: [PATCH v4 09/19] Move cooked_index_storage to cooked-index.h
Date: Sun, 10 Dec 2023 14:41:17 -0700	[thread overview]
Message-ID: <20231210-t-bg-dwarf-reading-v4-9-b978c32fd12f@tromey.com> (raw)
In-Reply-To: <20231210-t-bg-dwarf-reading-v4-0-b978c32fd12f@tromey.com>

This moves cooked_index_storage to cooked-index.h.  This is needed by
a subsequent patch.
---
 gdb/dwarf2/cooked-index.h |  70 ++++++++++++++++++++++++
 gdb/dwarf2/read.c         | 135 ++++++++++++++--------------------------------
 2 files changed, 111 insertions(+), 94 deletions(-)

diff --git a/gdb/dwarf2/cooked-index.h b/gdb/dwarf2/cooked-index.h
index 5675ea68bb8..36b734f0fb6 100644
--- a/gdb/dwarf2/cooked-index.h
+++ b/gdb/dwarf2/cooked-index.h
@@ -33,6 +33,7 @@
 #include "gdbsupport/thread-pool.h"
 #include "dwarf2/mapped-index.h"
 #include "dwarf2/tag.h"
+#include "dwarf2/abbrev-cache.h"
 #include "gdbsupport/range-chain.h"
 
 struct dwarf2_per_cu_data;
@@ -354,6 +355,75 @@ class cooked_index_shard
   gdb::future<void> m_future;
 };
 
+class cutu_reader;
+
+/* An instance of this is created when scanning DWARF to create a
+   cooked index.  */
+
+class cooked_index_storage
+{
+public:
+
+  cooked_index_storage ();
+  DISABLE_COPY_AND_ASSIGN (cooked_index_storage);
+
+  /* Return the current abbrev cache.  */
+  abbrev_cache *get_abbrev_cache ()
+  {
+    return &m_abbrev_cache;
+  }
+
+  /* Return the DIE reader corresponding to PER_CU.  If no such reader
+     has been registered, return NULL.  */
+  cutu_reader *get_reader (dwarf2_per_cu_data *per_cu);
+
+  /* Preserve READER by storing it in the local hash table.  */
+  cutu_reader *preserve (std::unique_ptr<cutu_reader> reader);
+
+  /* Add an entry to the index.  The arguments describe the entry; see
+     cooked-index.h.  The new entry is returned.  */
+  const cooked_index_entry *add (sect_offset die_offset, enum dwarf_tag tag,
+				 cooked_index_flag flags,
+				 const char *name,
+				 const cooked_index_entry *parent_entry,
+				 dwarf2_per_cu_data *per_cu)
+  {
+    return m_index->add (die_offset, tag, flags, name, parent_entry, per_cu);
+  }
+
+  /* Install the current addrmap into the shard being constructed,
+     then transfer ownership of the index to the caller.  */
+  std::unique_ptr<cooked_index_shard> release ()
+  {
+    m_index->install_addrmap (&m_addrmap);
+    return std::move (m_index);
+  }
+
+  /* Return the mutable addrmap that is currently being created.  */
+  addrmap_mutable *get_addrmap ()
+  {
+    return &m_addrmap;
+  }
+
+private:
+
+  /* Hash function for a cutu_reader.  */
+  static hashval_t hash_cutu_reader (const void *a);
+
+  /* Equality function for cutu_reader.  */
+  static int eq_cutu_reader (const void *a, const void *b);
+
+  /* The abbrev cache used by this indexer.  */
+  abbrev_cache m_abbrev_cache;
+  /* A hash table of cutu_reader objects.  */
+  htab_up m_reader_hash;
+  /* The index shard that is being constructed.  */
+  std::unique_ptr<cooked_index_shard> m_index;
+
+  /* A writeable addrmap being constructed by this scanner.  */
+  addrmap_mutable m_addrmap;
+};
+
 /* The main index of DIEs.  The parallel DIE indexers create
    cooked_index_shard objects.  Then, these are all handled to a
    cooked_index for storage and final indexing.  The index is
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index 5189a7e0c45..afadb05d9d0 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -742,7 +742,6 @@ show_dwarf_max_cache_age (struct ui_file *file, int from_tty,
 static void dwarf2_find_base_address (struct die_info *die,
 				      struct dwarf2_cu *cu);
 
-class cooked_index_storage;
 static void build_type_psymtabs_reader (cutu_reader *reader,
 					cooked_index_storage *storage);
 
@@ -4418,105 +4417,53 @@ get_type_unit_group (struct dwarf2_cu *cu, const struct attribute *stmt_list)
 }
 \f
 
-/* An instance of this is created when scanning DWARF to create a
-   cooked index.  */
-
-class cooked_index_storage
+cooked_index_storage::cooked_index_storage ()
+  : m_reader_hash (htab_create_alloc (10, hash_cutu_reader,
+				      eq_cutu_reader,
+				      htab_delete_entry<cutu_reader>,
+				      xcalloc, xfree)),
+    m_index (new cooked_index_shard)
 {
-public:
-
-  cooked_index_storage ()
-    : m_reader_hash (htab_create_alloc (10, hash_cutu_reader,
-					eq_cutu_reader,
-					htab_delete_entry<cutu_reader>,
-					xcalloc, xfree)),
-      m_index (new cooked_index_shard)
-  {
-  }
-
-  DISABLE_COPY_AND_ASSIGN (cooked_index_storage);
-
-  /* Return the current abbrev cache.  */
-  abbrev_cache *get_abbrev_cache ()
-  {
-    return &m_abbrev_cache;
-  }
-
-  /* Return the DIE reader corresponding to PER_CU.  If no such reader
-     has been registered, return NULL.  */
-  cutu_reader *get_reader (dwarf2_per_cu_data *per_cu)
-  {
-    int index = per_cu->index;
-    return (cutu_reader *) htab_find_with_hash (m_reader_hash.get (),
-						&index, index);
-  }
-
-  /* Preserve READER by storing it in the local hash table.  */
-  cutu_reader *preserve (std::unique_ptr<cutu_reader> reader)
-  {
-    m_abbrev_cache.add (reader->release_abbrev_table ());
-
-    int index = reader->cu->per_cu->index;
-    void **slot = htab_find_slot_with_hash (m_reader_hash.get (), &index,
-					    index, INSERT);
-    gdb_assert (*slot == nullptr);
-    cutu_reader *result = reader.get ();
-    *slot = reader.release ();
-    return result;
-  }
-
-  /* Add an entry to the index.  The arguments describe the entry; see
-     cooked-index.h.  The new entry is returned.  */
-  const cooked_index_entry *add (sect_offset die_offset, enum dwarf_tag tag,
-				 cooked_index_flag flags,
-				 const char *name,
-				 const cooked_index_entry *parent_entry,
-				 dwarf2_per_cu_data *per_cu)
-  {
-    return m_index->add (die_offset, tag, flags, name, parent_entry, per_cu);
-  }
-
-  /* Install the current addrmap into the index shard being constructed,
-     then transfer ownership of the index to the caller.  */
-  std::unique_ptr<cooked_index_shard> release ()
-  {
-    m_index->install_addrmap (&m_addrmap);
-    return std::move (m_index);
-  }
-
-  /* Return the mutable addrmap that is currently being created.  */
-  addrmap_mutable *get_addrmap ()
-  {
-    return &m_addrmap;
-  }
+}
 
-private:
+cutu_reader *
+cooked_index_storage::get_reader (dwarf2_per_cu_data *per_cu)
+{
+  int index = per_cu->index;
+  return (cutu_reader *) htab_find_with_hash (m_reader_hash.get (),
+					      &index, index);
+}
 
-  /* Hash function for a cutu_reader.  */
-  static hashval_t hash_cutu_reader (const void *a)
-  {
-    const cutu_reader *reader = (const cutu_reader *) a;
-    return reader->cu->per_cu->index;
-  }
+cutu_reader *
+cooked_index_storage::preserve (std::unique_ptr<cutu_reader> reader)
+{
+  m_abbrev_cache.add (reader->release_abbrev_table ());
 
-  /* Equality function for cutu_reader.  */
-  static int eq_cutu_reader (const void *a, const void *b)
-  {
-    const cutu_reader *ra = (const cutu_reader *) a;
-    const int *rb = (const int *) b;
-    return ra->cu->per_cu->index == *rb;
-  }
+  int index = reader->cu->per_cu->index;
+  void **slot = htab_find_slot_with_hash (m_reader_hash.get (), &index,
+					  index, INSERT);
+  gdb_assert (*slot == nullptr);
+  cutu_reader *result = reader.get ();
+  *slot = reader.release ();
+  return result;
+}
 
-  /* The abbrev cache used by this indexer.  */
-  abbrev_cache m_abbrev_cache;
-  /* A hash table of cutu_reader objects.  */
-  htab_up m_reader_hash;
-  /* The index shard that is being constructed.  */
-  std::unique_ptr<cooked_index_shard> m_index;
+/* Hash function for a cutu_reader.  */
+hashval_t
+cooked_index_storage::hash_cutu_reader (const void *a)
+{
+  const cutu_reader *reader = (const cutu_reader *) a;
+  return reader->cu->per_cu->index;
+}
 
-  /* A writeable addrmap being constructed by this scanner.  */
-  addrmap_mutable m_addrmap;
-};
+/* Equality function for cutu_reader.  */
+int
+cooked_index_storage::eq_cutu_reader (const void *a, const void *b)
+{
+  const cutu_reader *ra = (const cutu_reader *) a;
+  const int *rb = (const int *) b;
+  return ra->cu->per_cu->index == *rb;
+}
 
 /* An instance of this is created to index a CU.  */
 

-- 
2.43.0


  parent reply	other threads:[~2023-12-10 21:41 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-10 21:41 [PATCH v4 00/19] Index DWARF in the background Tom Tromey
2023-12-10 21:41 ` [PATCH v4 01/19] Don't use objfile::intern in DWO code Tom Tromey
2024-01-09 18:44   ` Simon Marchi
2024-01-09 19:12     ` Tom Tromey
2024-01-09 19:51       ` Tom Tromey
2023-12-10 21:41 ` [PATCH v4 02/19] Pre-read DWZ section data Tom Tromey
2023-12-10 21:41 ` [PATCH v4 03/19] Add a couple of bfd_cache_close calls Tom Tromey
2023-12-10 21:41 ` [PATCH v4 04/19] Add thread-safety to gdb's BFD wrappers Tom Tromey
2023-12-10 21:41 ` [PATCH v4 05/19] Refactor complaint thread-safety approach Tom Tromey
2023-12-10 21:41 ` [PATCH v4 06/19] Add deferred_warnings parameter to read_addrmap_from_aranges Tom Tromey
2023-12-10 21:41 ` [PATCH v4 07/19] Add quick_symbol_functions::compute_main_name Tom Tromey
2023-12-10 21:41 ` [PATCH v4 08/19] Add gdb::task_group Tom Tromey
2023-12-18 14:55   ` Tom Tromey
2023-12-10 21:41 ` Tom Tromey [this message]
2023-12-10 21:41 ` [PATCH v4 10/19] Add "maint set dwarf synchronous" Tom Tromey
2023-12-10 21:41 ` [PATCH v4 11/19] Change how cooked index waits for threads Tom Tromey
2023-12-10 21:41 ` [PATCH v4 12/19] Do more DWARF reading in the background Tom Tromey
2023-12-10 21:41 ` [PATCH v4 13/19] Simplify the public DWARF API Tom Tromey
2023-12-10 21:41 ` [PATCH v4 14/19] Remove two quick_symbol_functions methods Tom Tromey
2023-12-10 21:41 ` [PATCH v4 15/19] Change current_language to be a macro Tom Tromey
2023-12-10 21:41 ` [PATCH v4 16/19] Lazy language setting Tom Tromey
2023-12-10 21:41 ` [PATCH v4 17/19] Optimize lookup_minimal_symbol_text Tom Tromey
2023-12-10 21:41 ` [PATCH v4 18/19] Avoid language-based lookups in startup path Tom Tromey
2023-12-10 21:41 ` [PATCH v4 19/19] Back out some parallel_for_each features Tom Tromey
2024-01-09  1:08 ` [PATCH v4 00/19] Index DWARF in the background Tom Tromey

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