From: Simon Marchi <simark@simark.ca>
To: Tom Tromey <tom@tromey.com>, gdb-patches@sourceware.org
Subject: Re: [PATCH 07/14] Add dwarf2_per_cu_data::index
Date: Wed, 19 Feb 2020 04:36:00 -0000 [thread overview]
Message-ID: <539dc8dc-b35e-690c-ab51-134fc05516a4@simark.ca> (raw)
In-Reply-To: <20200215165444.32653-8-tom@tromey.com>
On 2020-02-15 11:54 a.m., Tom Tromey wrote:
> @@ -255,6 +266,10 @@ public:
> /* CUs that are queued to be read. */
> std::queue<dwarf2_queue_item> queue;
>
> + /* The total number of per_cu and signatured_type objects that have
> + been created for this reader. */
> + size_t num_psymtabs = 0;
Make this private, and name it m_num_psymtabs?
> +
> /* State that cannot be shared across objfiles. This is normally
> nullptr and is temporarily set to the correct value at the entry
> points of the reader. */
> @@ -336,6 +351,9 @@ struct dwarf2_per_cu_data
> This flag is only valid if is_debug_types is true. */
> unsigned int tu_read : 1;
>
> + /* Our index in the unshared "all_cutus" vector. */
> + unsigned index;
The "all_cutus" vector does not exist (at least at the moment, maybe it's added later
in the series?). I presume you are talking about the logical/combined vector made of
all_comp_units and all_type_units, accessible using dwarf2_per_objfile::get_cutu?
This logical/combined vector has all the comp units first, then the type units. Using
the new interface allocate_per_cu/allocate_signatured_type, the indices are handed out
in any order. I don't know if it's actually possible to have it in this order, but let's
say we read:
- a CU
- a TU
- a CU
The CUs will have been handed out indices 0 and 2, and the TU will have been handed out
index 1. But in reality, when accessing them using get_cutu, the two CUs will be at 0 and
1, while the TU will be at 2. Again, not sure if it matters, but I thought I would point
it out.
Or maybe this is what you meant by "the index here is weird since it may not (!?!?) be the
same as the other index", this is not the same index? I guess I'll read the rest of the
series and find out.
Simon
next prev parent reply other threads:[~2020-02-19 4:36 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-15 16:54 [PATCH 00/14] Share DWARF partial symtabs between objfiles Tom Tromey
2020-02-15 16:55 ` [PATCH 13/14] Move signatured_type::type to unshareable object Tom Tromey
2020-02-15 16:55 ` [PATCH 14/14] Share DWARF partial symtabs Tom Tromey
2020-02-18 12:26 ` Luis Machado
2020-02-21 23:03 ` Tom Tromey
2020-02-15 16:55 ` [PATCH 09/14] Add objfile member to DWARF batons Tom Tromey
2020-02-15 16:55 ` [PATCH 04/14] Convert IS_TYPE_UNIT_GROUP to method Tom Tromey
2020-02-15 16:55 ` [PATCH 01/14] Fix latent bug in dwarf2_find_containing_comp_unit Tom Tromey
2020-02-19 3:42 ` Simon Marchi
2020-02-19 14:08 ` Tom Tromey
2020-02-20 0:11 ` Tom Tromey
2020-02-20 0:12 ` Tom Tromey
2020-02-20 15:44 ` Simon Marchi
2020-02-20 16:50 ` Tom Tromey
2020-03-07 19:12 ` Christian Biesinger
2020-02-15 16:55 ` [PATCH 05/14] Introduce dwarf2_unshareable and move die_type_hash Tom Tromey
2020-02-18 11:23 ` Luis Machado
2020-02-19 4:20 ` Simon Marchi
2020-02-21 22:43 ` Tom Tromey
2020-02-15 16:55 ` [PATCH 12/14] Fix a memory leak and remove an unused member Tom Tromey
2020-02-15 16:55 ` [PATCH 07/14] Add dwarf2_per_cu_data::index Tom Tromey
2020-02-18 11:39 ` Luis Machado
2020-02-21 23:36 ` Tom Tromey
2020-02-19 4:36 ` Simon Marchi [this message]
2020-02-19 5:31 ` Simon Marchi
2020-02-21 23:41 ` Tom Tromey
2020-02-21 23:41 ` Tom Tromey
2020-02-15 16:55 ` [PATCH 02/14] Simplify setting of reading_partial_symbols Tom Tromey
2020-02-15 16:55 ` [PATCH 03/14] Introduce dwarf2_per_objfile::obstack Tom Tromey
2020-02-19 4:13 ` Simon Marchi
2020-02-22 0:44 ` Tom Tromey
2020-02-15 16:55 ` [PATCH 10/14] Introduce dwarf2_enter_objfile and use it Tom Tromey
2020-02-18 11:58 ` Luis Machado
2020-02-21 22:54 ` Tom Tromey
2020-02-15 16:55 ` [PATCH 11/14] Split type_unit_group Tom Tromey
2020-02-18 12:08 ` Luis Machado
2020-02-22 0:40 ` Tom Tromey
2020-02-15 16:55 ` [PATCH 06/14] Add "objfile" parameter to two partial_symtab methods Tom Tromey
2020-02-18 11:26 ` Luis Machado
2020-02-15 16:55 ` [PATCH 08/14] Remove symtab links from dwarf2_psymtab and dwarf2_per_cu_quick_data Tom Tromey
2020-02-18 11:50 ` Luis Machado
2020-02-19 4:47 ` Simon Marchi
2020-02-22 0:38 ` Tom Tromey
2020-02-22 0:36 ` Tom Tromey
2020-02-17 12:31 ` [PATCH 00/14] Share DWARF partial symtabs between objfiles Luis Machado
2020-02-17 16:59 ` Tom Tromey
2020-02-22 21:50 ` Tom de Vries
2020-02-22 22:01 ` Tom Tromey
2020-02-23 2:37 ` Simon Marchi
2020-02-23 23:58 ` Tom Tromey
2020-02-24 2:52 ` Simon Marchi
2020-02-24 3:07 ` Tom Tromey
2020-02-24 3:22 ` Tom Tromey
2020-02-24 13:42 ` Tom de Vries
2020-02-24 16:00 ` Tom de Vries
2020-02-24 17:29 ` Tom Tromey
2020-02-24 23:15 ` Tom Tromey
2020-02-24 19:18 ` Simon Marchi
2020-02-24 23:20 ` Tom Tromey
2020-02-24 22:48 ` Tom Tromey
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