[PATCH] default_type_align: Use type_length_units

[Simon Marchi]

On 2018-06-14 03:50 PM, Tom Tromey wrote:
>>>>>> "Simon" == Simon Marchi <simon.marchi@polymtl.ca> writes:
> 
> Simon> This use seems related to C++, and our compiler is C only, so I can't
> Simon> test that.  But it would make sense, I can include that change if you
> Simon> prefer.
> 
> Yeah, I think it would be best to either change both or change neither
> (and update the comment).

Here's what I pushed.  However, I parsed the "and update the comment" of your reply
after pushing.  Which comment did you want me to update?

Simon


>From 55c748a1c01f33cec0f762969db1bae457e8bcca Mon Sep 17 00:00:00 2001
From: Simon Marchi <simon.marchi@ericsson.com>
Date: Thu, 14 Jun 2018 18:23:39 -0400
Subject: [PATCH] type alignment: Use type_length_units

The type alignment value is returned in 8-bit-bytes instead of target
memory addressable units.  For example, on a target with 16-bit-bytes
where sizeof(int) == 1 (one addressable unit), alignof(int) currently
returns 2.  After, this patch, it returns 1.

gdb/ChangeLog:

	* arch-utils.c (default_type_align): Use type_length_units.
	* gdbtypes.c (type_align): Use type_length_units.
---
 gdb/ChangeLog    | 5 +++++
 gdb/arch-utils.c | 2 +-
 gdb/gdbtypes.c   | 2 +-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 60766ca77758..aba9a1a1b1f3 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2018-06-14  Simon Marchi  <simon.marchi@ericsson.com>
+
+	* arch-utils.c (default_type_align): Use type_length_units.
+	* gdbtypes.c (type_align): Use type_length_units.
+
 2018-06-14  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

 	* cli/cli-script.c (_initialize_cli_script): Fix online documentation
diff --git a/gdb/arch-utils.c b/gdb/arch-utils.c
index 76bc16f37500..a65f01f83368 100644
--- a/gdb/arch-utils.c
+++ b/gdb/arch-utils.c
@@ -994,7 +994,7 @@ default_in_indirect_branch_thunk (gdbarch *gdbarch, CORE_ADDR pc)
 ULONGEST
 default_type_align (struct gdbarch *gdbarch, struct type *type)
 {
-  return TYPE_LENGTH (check_typedef (type));
+  return type_length_units (check_typedef (type));
 }

 void
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index fdd28c0886e3..65b1211ec492 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -3072,7 +3072,7 @@ type_align (struct type *type)

     case TYPE_CODE_METHODPTR:
     case TYPE_CODE_MEMBERPTR:
-      align = TYPE_LENGTH (type);
+      align = type_length_units (type);
       break;

     case TYPE_CODE_VOID:
-- 
2.17.1