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From: Lancelot SIX <lancelot.six@amd.com>
To: Simon Marchi <simon.marchi@efficios.com>
Cc: <gdb-patches@sourceware.org>, Simon Marchi <simon.marchi@polymtl.ca>
Subject: Re: [PATCH 4/24] gdb: replace some so_list parameters to use references
Date: Thu, 19 Oct 2023 12:07:50 +0100	[thread overview]
Message-ID: <20231019110750.34bk5fflxalsb4tw@khazad-dum> (raw)
In-Reply-To: <20231010204213.111285-5-simon.marchi@efficios.com>

[-- Attachment #1: Type: text/plain, Size: 3729 bytes --]

Hi Simon,

Some minor remarks below.

On Tue, Oct 10, 2023 at 04:39:59PM -0400, Simon Marchi wrote:
> From: Simon Marchi <simon.marchi@polymtl.ca>
> 
> A subsequent patch changes so_list to be linked using
> intrusive_list.  Iterating an intrusive_list yields some references to
> the list elements.  Convert some functions accepting so_list objects to
> take references, to make things easier and more natural.  Add const
> where possible and convenient.
> 
> Change-Id: Id5ab5339c3eb6432e809ad14782952d6a45806f3
> ---
>  gdb/breakpoint.c     |   5 +-
>  gdb/bsd-uthread.c    |  12 ++---
>  gdb/exec.c           |   4 +-
>  gdb/interps.c        |   4 +-
>  gdb/interps.h        |   8 +--
>  gdb/mi/mi-cmd-file.c |   2 +-
>  gdb/mi/mi-interp.c   |  26 ++++-----
>  gdb/mi/mi-interp.h   |   6 +--
>  gdb/nto-tdep.c       |   6 +--
>  gdb/nto-tdep.h       |   3 +-
>  gdb/observable.h     |   5 +-
>  gdb/progspace.h      |   4 +-
>  gdb/solib-aix.c      |  11 ++--
>  gdb/solib-darwin.c   |  23 ++++----
>  gdb/solib-dsbt.c     |   9 ++--
>  gdb/solib-frv.c      |   9 ++--
>  gdb/solib-rocm.c     |   8 +--
>  gdb/solib-svr4.c     |  35 ++++++------
>  gdb/solib-target.c   |  49 +++++++++--------
>  gdb/solib.c          | 126 +++++++++++++++++++++----------------------
>  gdb/solib.h          |   4 +-
>  gdb/solist.h         |  13 +++--
>  gdb/target-section.h |   2 +-
>  23 files changed, 183 insertions(+), 191 deletions(-)
> 
> diff --git a/gdb/mi/mi-interp.h b/gdb/mi/mi-interp.h
> index f9af61f0a571..781a8dc6f466 100644
> --- a/gdb/mi/mi-interp.h
> +++ b/gdb/mi/mi-interp.h
> @@ -60,8 +60,8 @@ class mi_interp final : public interp
>    void on_record_changed (inferior *inf, int started, const char *method,
>  			  const char *format) override;
>    void on_target_resumed (ptid_t ptid) override;
> -  void on_solib_loaded (so_list *so) override;
> -  void on_solib_unloaded (so_list *so) override;
> +  void on_solib_loaded (const so_list &so) override;
> +  void on_solib_unloaded (const so_list &so) override;

It is orthogonal to this change, but it would make sense for those
methods to be const as well.

Doing this requires interp::interp_ui_out to be const as well (as done
in attached patch).

>    void on_about_to_proceed () override;
>    void on_traceframe_changed (int tfnum, int tpnum) override;
>    void on_tsv_created (const trace_state_variable *tsv) override;
> diff --git a/gdb/observable.h b/gdb/observable.h
> index acb05e9b535c..5ed6ca547ce0 100644
> --- a/gdb/observable.h
> +++ b/gdb/observable.h
> @@ -99,13 +99,12 @@ extern observable<inferior */* parent_inf */, inferior */* child_inf */,
>  /* The shared library specified by SOLIB has been loaded.  Note that
>     when gdb calls this observer, the library's symbols probably
>     haven't been loaded yet.  */
> -extern observable<struct so_list */* solib */> solib_loaded;
> +extern observable<so_list &/* solib */> solib_loaded;

I am wondering, is there a reason to make the solib parameter const for
solib_unloaded but not for solib_loaded?  

Changing it to const seems to still compile just fine.  If down the line
an observer needs to modify the SO, the observer's signature can be
adjusted.

>  
>  /* The shared library SOLIB has been unloaded from program space PSPACE.
>     Note  when gdb calls this observer, the library's symbols have not
>     been unloaded yet, and thus are still available.  */
> -extern observable<struct program_space */* pspace */, struct so_list */* solib */>
> -  solib_unloaded;
> +extern observable<program_space *, const so_list &/* solib */> solib_unloaded;
>  
>  /* The symbol file specified by OBJFILE has been loaded.  */
>  extern observable<struct objfile */* objfile */> new_objfile;

[-- Attachment #2: 0001-gdb-interp-Make-interp-interp_ui_out-const.patch --]
[-- Type: text/x-diff, Size: 3622 bytes --]

From 4e9158ca45ffc4e15c8c57a0df9f99ab49a35c0e Mon Sep 17 00:00:00 2001
From: Lancelot SIX <lancelot.six@amd.com>
Date: Thu, 19 Oct 2023 09:29:39 +0100
Subject: [PATCH] gdb/interp: Make interp::interp_ui_out const

The interp::interp_ui_out can be declared const.  Make this change as it
will be used in a following patch.

Change-Id: I11844d36f44d369400049f916db94aca9f43be51
---
 gdb/cli/cli-interp.c | 4 ++--
 gdb/interps.h        | 2 +-
 gdb/mi/mi-interp.c   | 2 +-
 gdb/mi/mi-interp.h   | 2 +-
 gdb/python/py-dap.c  | 2 +-
 gdb/tui/tui-interp.c | 4 ++--
 6 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/gdb/cli/cli-interp.c b/gdb/cli/cli-interp.c
index 829948b4993..21c78fd98a9 100644
--- a/gdb/cli/cli-interp.c
+++ b/gdb/cli/cli-interp.c
@@ -50,7 +50,7 @@ class cli_interp final : public cli_interp_base
   void resume () override;
   void suspend () override;
   void exec (const char *command_str) override;
-  ui_out *interp_ui_out () override;
+  ui_out *interp_ui_out () const override;
 
 private:
 
@@ -255,7 +255,7 @@ cli_interp_base::supports_command_editing ()
 }
 
 ui_out *
-cli_interp::interp_ui_out ()
+cli_interp::interp_ui_out () const
 {
   return m_cli_uiout.get ();
 }
diff --git a/gdb/interps.h b/gdb/interps.h
index 287df2c8c81..a3cbf32aa12 100644
--- a/gdb/interps.h
+++ b/gdb/interps.h
@@ -65,7 +65,7 @@ class interp : public intrusive_list_node<interp>
      interpreter.  It can be a formatter for stdout, as is the case
      for the console & mi outputs, or it might be a result
      formatter.  */
-  virtual ui_out *interp_ui_out () = 0;
+  virtual ui_out *interp_ui_out () const = 0;
 
   /* Provides a hook for interpreters to do any additional
      setup/cleanup that they might need when logging is enabled or
diff --git a/gdb/mi/mi-interp.c b/gdb/mi/mi-interp.c
index 0d3c8235c2c..70075eed16b 100644
--- a/gdb/mi/mi-interp.c
+++ b/gdb/mi/mi-interp.c
@@ -875,7 +875,7 @@ mi_interp::on_user_selected_context_changed (user_selected_what selection)
 }
 
 ui_out *
-mi_interp::interp_ui_out ()
+mi_interp::interp_ui_out () const
 {
   return this->mi_uiout;
 }
diff --git a/gdb/mi/mi-interp.h b/gdb/mi/mi-interp.h
index f9af61f0a57..ff3c439f1e3 100644
--- a/gdb/mi/mi-interp.h
+++ b/gdb/mi/mi-interp.h
@@ -37,7 +37,7 @@ class mi_interp final : public interp
   void resume () override;
   void suspend () override;
   void exec (const char *command_str) override;
-  ui_out *interp_ui_out () override;
+  ui_out *interp_ui_out () const override;
   void set_logging (ui_file_up logfile, bool logging_redirect,
 		    bool debug_redirect) override;
   void pre_command_loop () override;
diff --git a/gdb/python/py-dap.c b/gdb/python/py-dap.c
index 3444eccb6fb..7a78e54571f 100644
--- a/gdb/python/py-dap.c
+++ b/gdb/python/py-dap.c
@@ -56,7 +56,7 @@ class dap_interp final : public interp
     /* Just ignore it.  */
   }
 
-  ui_out *interp_ui_out () override
+  ui_out *interp_ui_out () const override
   {
     return m_ui_out.get ();
   }
diff --git a/gdb/tui/tui-interp.c b/gdb/tui/tui-interp.c
index 299cc4caea0..a88162c08e1 100644
--- a/gdb/tui/tui-interp.c
+++ b/gdb/tui/tui-interp.c
@@ -50,7 +50,7 @@ class tui_interp final : public cli_interp_base
   void resume () override;
   void suspend () override;
   void exec (const char *command_str) override;
-  ui_out *interp_ui_out () override;
+  ui_out *interp_ui_out () const override;
 };
 
 /* Cleanup the tui before exiting.  */
@@ -141,7 +141,7 @@ tui_interp::suspend ()
 }
 
 ui_out *
-tui_interp::interp_ui_out ()
+tui_interp::interp_ui_out () const
 {
   if (tui_active)
     return tui_out;

-- 
2.34.1


  reply	other threads:[~2023-10-19 11:08 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-10 20:39 [PATCH 00/24] C++ification of struct so_list Simon Marchi
2023-10-10 20:39 ` [PATCH 01/24] gdb: remove empty clear_solib functions Simon Marchi
2023-10-10 20:39 ` [PATCH 02/24] gdb: add program_space parameter to target_so_ops::clear_solib Simon Marchi
2023-10-17 14:57   ` Pedro Alves
2023-10-17 15:19     ` Simon Marchi
2023-10-10 20:39 ` [PATCH 03/24] gdb: make interps_notify work with references Simon Marchi
2023-10-11  8:48   ` Lancelot SIX
2023-10-11 14:18     ` Simon Marchi
2023-10-10 20:39 ` [PATCH 04/24] gdb: replace some so_list parameters to use references Simon Marchi
2023-10-19 11:07   ` Lancelot SIX [this message]
2023-10-19 14:49     ` [PATCH 4/24] " Simon Marchi
2023-10-19 15:20       ` Lancelot SIX
2023-10-19 16:07         ` Simon Marchi
2023-10-10 20:40 ` [PATCH 05/24] gdbsupport: use "reference" and "pointer" type aliases in intrusive_list Simon Marchi
2023-10-10 20:40 ` [PATCH 06/24] gdbsupport: make intrusive_list's disposer accept a reference Simon Marchi
2023-10-12 19:05   ` Pedro Alves
2023-10-14 20:12     ` Simon Marchi
2023-10-10 20:40 ` [PATCH 07/24] gdb: make get_cbfd_soname_build_id static Simon Marchi
2023-10-10 20:40 ` [PATCH 08/24] gdb: allocate so_list with new, deallocate with delete Simon Marchi
2023-10-10 20:40 ` [PATCH 09/24] gdb: rename lm_info_base to lm_info Simon Marchi
2023-10-10 20:40 ` [PATCH 10/24] gdb: remove target_so_ops::free_so Simon Marchi
2023-10-10 20:40 ` [PATCH 11/24] gdb: use gdb::checked_static_cast when casting lm_info Simon Marchi
2023-10-10 20:40 ` [PATCH 12/24] gdb: make solib-svr4 not use so_list internally Simon Marchi
2023-10-13 17:52   ` Lancelot SIX
2023-10-14 19:59     ` Simon Marchi
2023-10-19 11:08   ` Lancelot SIX
2023-10-19 14:50     ` Simon Marchi
2023-10-10 20:40 ` [PATCH 13/24] gdb: make solib-rocm " Simon Marchi
2023-10-13 18:35   ` Lancelot SIX
2023-10-14 20:00     ` Simon Marchi
2023-10-17 15:23   ` Pedro Alves
2023-10-17 15:32     ` Simon Marchi
2023-10-10 20:40 ` [PATCH 14/24] gdb: remove lm_info_vector typedef Simon Marchi
2023-10-10 20:40 ` [PATCH 15/24] gdb: make so_list::lm_info a unique_ptr Simon Marchi
2023-10-10 20:40 ` [PATCH 16/24] gdb: make clear_so a method of struct so_list Simon Marchi
2023-10-19 11:08   ` Lancelot SIX
2023-10-19 14:52     ` Simon Marchi
2023-10-10 20:40 ` [PATCH 17/24] gdb: remove target_section_table typedef Simon Marchi
2023-10-10 20:40 ` [PATCH 18/24] gdb: make so_list::sections not a pointer Simon Marchi
2023-10-10 20:40 ` [PATCH 19/24] gdb: make so_list::abfd a gdb_bfd_ref_ptr Simon Marchi
2023-10-10 20:40 ` [PATCH 20/24] gdb: make so_list::{so_original_name,so_name} std::strings Simon Marchi
2023-10-13 22:28   ` [PATCH 20/24] gdb: make so_list::{so_original_name, so_name} std::strings Lancelot SIX
2023-10-14 20:01     ` Simon Marchi
2023-10-19 11:08   ` [PATCH 20/24] gdb: make so_list::{so_original_name,so_name} std::strings Lancelot SIX
2023-10-19 14:55     ` Simon Marchi
2023-10-10 20:40 ` [PATCH 21/24] gdb: link so_list using intrusive_list Simon Marchi
2023-10-17 19:14   ` Pedro Alves
2023-10-17 19:38     ` Simon Marchi
2023-10-10 20:40 ` [PATCH 22/24] gdb: don't call so_list::clear in free_so Simon Marchi
2023-10-10 20:40 ` [PATCH 23/24] gdb: remove free_so function Simon Marchi
2023-10-10 20:49 ` [PATCH 24/24] gdb: rename struct so_list to so Simon Marchi
2023-10-17 19:20 ` [PATCH 00/24] C++ification of struct so_list Pedro Alves
2023-10-17 19:53   ` Simon Marchi
2023-10-20 14:40     ` Pedro Alves
2023-10-19 11:09 ` [PATCH 0/24] " Lancelot SIX
2023-10-19 14:57   ` Simon Marchi

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