From: Max Filippov <jcmvbkbc@gmail.com>
To: "Takayuki 'January June' Suwa" <jjsuwa_sys3175@yahoo.co.jp>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] xtensa: Enforce return address saving when -Og is specified
Date: Mon, 20 Feb 2023 17:34:11 -0800 [thread overview]
Message-ID: <CAMo8BfLUkT9nLsjAi0CeKne4Wb+a705=nC1f6-_nxsVd0jg3tQ@mail.gmail.com> (raw)
In-Reply-To: <ffa22cd6-978c-0f23-d2ff-c52000db3398@yahoo.co.jp>
On Fri, Feb 17, 2023 at 8:54 PM Takayuki 'January June' Suwa
<jjsuwa_sys3175@yahoo.co.jp> wrote:
>
> Leaf function often omits saving its return address to the stack slot,
> and this feature often makes debugging very confusing, especially for
> stack dump analysis.
>
> gcc/ChangeLog:
>
> * config/xtensa/xtensa.cc (xtensa_call_save_reg): Change to return
> true if register A0 (return address register) when -Og is specified.
> ---
> gcc/config/xtensa/xtensa.cc | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
Regtested for target=xtensa-linux-uclibc, no new regressions.
Committed to master.
--
Thanks.
-- Max
prev parent reply other threads:[~2023-02-21 1:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <ffa22cd6-978c-0f23-d2ff-c52000db3398.ref@yahoo.co.jp>
2023-02-18 4:54 ` Takayuki 'January June' Suwa
2023-02-21 1:34 ` Max Filippov [this message]
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