From: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
To: "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>,
Aditya Kamath1 <Aditya.Kamath1@ibm.com>,
"simon.marchi@efficios.com" <simon.marchi@efficios.com>
Cc: Sangamesh Mallayya <sangamesh.swamy@in.ibm.com>,
Sanket Rathi <sanrathi@in.ibm.com>
Subject: Re: [PATCH] Fix call functions command bug in 64-bit programs for AIX
Date: Wed, 16 Nov 2022 15:15:02 +0000 [thread overview]
Message-ID: <d561747939cec27270b38f5b029498587ea4898e.camel@de.ibm.com> (raw)
In-Reply-To: <BY5PR15MB3540852D087513326BA57169D6079@BY5PR15MB3540.namprd15.prod.outlook.com>
Aditya Kamath1 <Aditya.Kamath1@ibm.com> wrote:
>In AIX for 64-bit programs, we need to zero extend variables of integer data type.
This looks much more reasonable, thanks!
Just a couple of remaining questions:
> memset (word, 0, reg_size);
>- memcpy (word, value_contents (arg).data (), len);
>+ if (type->code () == TYPE_CODE_INT)
>+ /* Sign or zero extend the "int" into a "word". */
>+ store_unsigned_integer (word, tdep->wordsize, byte_order,
>+ unpack_long (type, value_contents (arg).data ()));
>+ else
>+ memcpy (word, value_contents (arg).data (), len);
> regcache->cooked_write (tdep->ppc_gp0_regnum + 3 +ii, word);
Is it correct to handle *only* TYPE_CODE_INT here?
The corresponding code in the Linux ABI code has:
else if ((type->code () == TYPE_CODE_INT
|| type->code () == TYPE_CODE_ENUM
|| type->code () == TYPE_CODE_BOOL
|| type->code () == TYPE_CODE_CHAR
|| type->code () == TYPE_CODE_PTR
|| TYPE_IS_REFERENCE (type))
It might not really be necessary to handle pointer and reference
types if those are always guaranteed to be word sized. But I
think enum, bool, and char types should be handled.
Also, it would probably be preferable to use reg_size instead
of tdep->wordsize to be consistent.
Finally, there are still white space issues (use tabs instead
of 8 spaces, if there's just a single statement inside an if
it is indented only 2 spaces, not 4).
Bye,
Ulrich
next prev parent reply other threads:[~2022-11-16 15:15 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-07 11:00 Aditya Kamath1
2022-11-08 13:30 ` Ulrich Weigand
2022-11-11 17:53 ` Aditya Kamath1
2022-11-14 15:54 ` Ulrich Weigand
2022-11-14 17:32 ` Aditya Kamath1
2022-11-14 18:19 ` Ulrich Weigand
2022-11-14 18:28 ` Aditya Kamath1
2022-11-14 18:43 ` Ulrich Weigand
2022-11-14 18:52 ` Aditya Kamath1
2022-11-14 19:10 ` Ulrich Weigand
2022-11-16 11:27 ` Aditya Kamath1
2022-11-16 15:15 ` Ulrich Weigand [this message]
2022-11-16 18:07 ` Aditya Kamath1
2022-11-16 18:30 ` Tom Tromey
2022-11-17 12:54 ` Ulrich Weigand
2022-11-24 17:56 ` Aditya Kamath1
2022-11-24 18:15 ` Tom Tromey
2023-04-14 7:38 ` [PATCH] Fix call functions command bug in 64-bit programs for AIX and PC read in psymtab-symtab warning Aditya Kamath1
2023-04-14 14:45 ` Tom Tromey
2023-04-17 13:08 ` Aditya Kamath1
2023-04-17 13:16 ` Aditya Kamath1
2023-04-18 10:12 ` Ulrich Weigand
2023-04-21 13:00 ` Aditya Kamath1
2023-04-24 15:44 ` Ulrich Weigand
2023-04-27 10:13 ` Aditya Kamath1
2023-04-27 12:23 ` Ulrich Weigand
2023-04-27 10:14 ` Aditya Kamath1
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