Change dwp_file to use htab_up
This changes dwp_file to use htab_up for the loaded_cus and loaded_tus members. This lets us avoid allocating the contents of these hash tables on the objfile obstack. 2020-02-08 Tom Tromey <tom@tromey.com> * dwarf2/read.c (struct dwp_file) <loaded_cus, loaded_tus>: Now htab_up. (lookup_dwo_unit_in_dwp): Update. (allocate_dwp_loaded_cutus_table): Return htab_up. Don't allocate on obstack. Change-Id: Id61209bf5c6c6faa0c067195af31fbcf26813a3a
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@ -1,3 +1,11 @@
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2020-02-08 Tom Tromey <tom@tromey.com>
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* dwarf2/read.c (struct dwp_file) <loaded_cus, loaded_tus>: Now
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htab_up.
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(lookup_dwo_unit_in_dwp): Update.
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(allocate_dwp_loaded_cutus_table): Return htab_up. Don't allocate
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on obstack.
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2020-02-08 Tom Tromey <tom@tromey.com>
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* dwarf2/read.c (allocate_dwo_file_hash_table): Don't allocate on
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@ -868,8 +868,8 @@ struct dwp_file
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const struct dwp_hash_table *tus = nullptr;
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/* Tables of loaded CUs/TUs. Each entry is a struct dwo_unit *. */
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htab_t loaded_cus {};
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htab_t loaded_tus {};
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htab_up loaded_cus;
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htab_up loaded_tus;
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/* Table to map ELF section numbers to their sections.
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This is only needed for the DWP V1 file format. */
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@ -12350,8 +12350,8 @@ lookup_dwo_unit_in_dwp (struct dwarf2_per_objfile *dwarf2_per_objfile,
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memset (&find_dwo_cu, 0, sizeof (find_dwo_cu));
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find_dwo_cu.signature = signature;
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slot = htab_find_slot (is_debug_types
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? dwp_file->loaded_tus
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: dwp_file->loaded_cus,
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? dwp_file->loaded_tus.get ()
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: dwp_file->loaded_cus.get (),
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&find_dwo_cu, INSERT);
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if (*slot != NULL)
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@ -12722,16 +12722,13 @@ eq_dwp_loaded_cutus (const void *a, const void *b)
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/* Allocate a hash table for dwp_file loaded CUs/TUs. */
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static htab_t
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static htab_up
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allocate_dwp_loaded_cutus_table (struct objfile *objfile)
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{
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return htab_create_alloc_ex (3,
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hash_dwp_loaded_cutus,
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eq_dwp_loaded_cutus,
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NULL,
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&objfile->objfile_obstack,
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hashtab_obstack_allocate,
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dummy_obstack_deallocate);
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return htab_up (htab_create_alloc (3,
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hash_dwp_loaded_cutus,
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eq_dwp_loaded_cutus,
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NULL, xcalloc, xfree));
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}
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/* Try to open DWP file FILE_NAME.
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