From: Simon Marchi <simark@simark.ca>
To: Shahab Vahedi <shahab.vahedi@gmail.com>, gdb-patches@sourceware.org
Cc: Shahab Vahedi <shahab@synopsys.com>, Tom Tromey <tom@tromey.com>,
Anton Kolesov <anton.kolesov@synopsys.com>,
Francois Bedard <fbedard@synopsys.com>
Subject: Re: [PATCH v3 2/3] arc: Add hardware loop detection
Date: Tue, 14 Jul 2020 22:55:31 -0400 [thread overview]
Message-ID: <1b6491a1-2cf0-46ec-8435-97d500b6fb44@simark.ca> (raw)
In-Reply-To: <20200713154527.13430-3-shahab.vahedi@gmail.com>
On 2020-07-13 11:45 a.m., Shahab Vahedi wrote:
> From: Shahab Vahedi <shahab@synopsys.com>
>
> For ARC there are registers that are not part of a required set in XML
> target descriptions by default, but are almost always present on ARC
> targets and are universally exposed by the ptrace interface. Hardware
> loop registers being one of them.
>
> LP_START and LP_END auxiliary registers are hardware loop start and end.
> Formally, they are optional, but it is hard to find an ARC configuration
> that doesn't have them. They are always present in processors that can
> run GNU/Linux. GDB needs to know about those registers to implement
> proper software single stepping, since they affect what instruction
> will be next.
>
> This commit adds the code to check for the existance of "lp_start" and
> "lp_end" in XML target descriptions. If they exist, then the function
> reports that the target supports hardware loops.
This looks good to me.
Simon
next prev parent reply other threads:[~2020-07-15 2:55 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 12:52 [PATCH 0/4] arc: Add GNU/Linux support Shahab Vahedi
2020-03-26 12:52 ` [PATCH 1/4] arc: Add XML target features for Linux targets Shahab Vahedi
2020-04-24 13:46 ` Tom Tromey
2020-03-26 12:52 ` [PATCH 2/4] arc: Recognize registers available on " Shahab Vahedi
2020-04-24 13:50 ` Tom Tromey
2020-03-26 12:52 ` [PATCH 3/4] arc: Add GNU/Linux support for ARC Shahab Vahedi
2020-04-24 14:00 ` Tom Tromey
2020-03-26 12:52 ` [PATCH 4/4] arc: Add arc-*-linux regformats Shahab Vahedi
2020-04-24 14:01 ` Tom Tromey
2020-04-06 9:13 ` [PING][PATCH 0/4] arc: Add GNU/Linux support Shahab Vahedi
2020-04-20 16:51 ` [PING^2][PATCH " Shahab Vahedi
2020-04-28 16:04 ` [PATCH v2 " Shahab Vahedi
2020-04-28 16:04 ` [PATCH v2 1/4] arc: Add XML target features for Linux targets Shahab Vahedi
2020-05-14 14:49 ` Simon Marchi
2020-04-28 16:04 ` [PATCH v2 2/4] arc: Recognize registers available on " Shahab Vahedi
2020-04-28 16:56 ` Eli Zaretskii
2020-05-14 15:01 ` Simon Marchi
2020-06-17 15:46 ` Shahab Vahedi
2020-07-13 15:48 ` Simon Marchi
2020-07-14 9:05 ` Shahab Vahedi
2020-04-28 16:04 ` [PATCH v2 3/4] arc: Add GNU/Linux support for ARC Shahab Vahedi
2020-05-14 15:09 ` Simon Marchi
2020-06-15 23:13 ` Shahab Vahedi
2020-06-16 0:58 ` Simon Marchi
2020-04-28 16:04 ` [PATCH v2 4/4] arc: Add arc-*-linux regformats Shahab Vahedi
2020-05-14 15:12 ` Simon Marchi
2020-06-15 23:37 ` Shahab Vahedi
2020-06-16 2:08 ` Simon Marchi
2020-05-14 11:43 ` [PATCH v2 0/4] arc: Add GNU/Linux support Shahab Vahedi
2020-07-13 15:45 ` [PATCH v3 0/3] " Shahab Vahedi
2020-07-13 15:45 ` [PATCH v3 1/3] arc: Add ARCv2 XML target along with refactoring Shahab Vahedi
2020-07-15 2:52 ` Simon Marchi
2020-07-15 20:35 ` Shahab Vahedi
2020-07-15 21:23 ` Christian Biesinger
2020-07-16 1:59 ` Simon Marchi
2020-07-16 13:28 ` Simon Marchi
2020-07-22 13:36 ` Shahab Vahedi
2020-07-22 13:49 ` Simon Marchi
2020-07-22 14:33 ` Shahab Vahedi
2020-07-22 14:54 ` Simon Marchi
2020-07-13 15:45 ` [PATCH v3 2/3] arc: Add hardware loop detection Shahab Vahedi
2020-07-15 2:55 ` Simon Marchi [this message]
2020-07-13 15:45 ` [PATCH v3 3/3] arc: Add GNU/Linux support for ARC Shahab Vahedi
2020-07-15 3:03 ` Simon Marchi
2020-07-23 19:35 ` [PATCH v4 0/3] arc: Add GNU/Linux support Shahab Vahedi
2020-07-23 19:35 ` [PATCH v4 1/3] arc: Add ARCv2 XML target along with refactoring Shahab Vahedi
2020-07-30 23:34 ` Simon Marchi
2020-07-23 19:35 ` [PATCH v4 2/3] arc: Add hardware loop detection Shahab Vahedi
2020-08-01 14:53 ` Simon Marchi
2020-07-23 19:35 ` [PATCH v4 3/3] arc: Add GNU/Linux support for ARC Shahab Vahedi
2020-08-01 15:01 ` Simon Marchi
2020-08-01 23:31 ` [PATCH v4 0/3] arc: Add GNU/Linux support Simon Marchi
2020-08-04 7:59 ` Shahab Vahedi
2020-08-04 12:42 ` Simon Marchi
2020-08-04 8:57 ` [PATCH v5 0/4] " Shahab Vahedi
2020-08-04 8:57 ` [PATCH v5 1/4] arc: Add ARCv2 XML target along with refactoring Shahab Vahedi
2020-08-04 13:08 ` Simon Marchi
2020-08-04 13:18 ` Shahab Vahedi
2020-08-04 13:20 ` Simon Marchi
2020-08-04 14:12 ` Shahab Vahedi
2020-08-04 8:57 ` [PATCH v5 2/4] arc: Add inclusion of "gdbarch.h" in "arc-tdep.h" Shahab Vahedi
2020-08-04 8:57 ` [PATCH v5 3/4] arc: Add hardware loop detection Shahab Vahedi
2020-08-04 14:28 ` Eli Zaretskii
2020-08-04 16:17 ` Shahab Vahedi
2020-08-04 16:42 ` Eli Zaretskii
2020-08-04 18:15 ` Shahab Vahedi
2020-08-04 8:57 ` [PATCH v5 4/4] arc: Add GNU/Linux support for ARC Shahab Vahedi
2020-08-04 12:49 ` [PATCH v5 0/4] arc: Add GNU/Linux support Simon Marchi
2020-08-04 13:05 ` Shahab Vahedi
2020-08-05 11:09 ` [PATCH v6 " Shahab Vahedi
2020-08-05 11:09 ` [PATCH v6 1/4] arc: Add ARCv2 XML target along with refactoring Shahab Vahedi
2020-08-05 14:31 ` Eli Zaretskii
2020-08-21 16:16 ` Simon Marchi
2020-08-24 20:14 ` Shahab Vahedi
2020-08-05 11:09 ` [PATCH v6 2/4] arc: Add inclusion of "gdbarch.h" in "arc-tdep.h" Shahab Vahedi
2020-08-05 11:09 ` [PATCH v6 3/4] arc: Add hardware loop detection Shahab Vahedi
2020-08-05 11:09 ` [PATCH v6 4/4] arc: Add GNU/Linux support for ARC Shahab Vahedi
2020-08-17 8:07 ` [PATCH v6 0/4] arc: Add GNU/Linux support Shahab Vahedi
2020-08-17 14:12 ` Eli Zaretskii
2020-08-25 15:47 ` [PUSHED " Shahab Vahedi
2020-08-25 15:47 ` [PUSHED 1/4] arc: Add ARCv2 XML target along with refactoring Shahab Vahedi
2020-08-25 16:00 ` Eli Zaretskii
2020-08-25 15:47 ` [PUSHED 2/4] arc: Add inclusion of "gdbarch.h" in "arc-tdep.h" Shahab Vahedi
2020-08-25 15:47 ` [PUSHED 3/4] arc: Add hardware loop detection Shahab Vahedi
2020-08-25 15:58 ` Eli Zaretskii
2020-08-25 15:47 ` [PUSHED 4/4] arc: Add GNU/Linux support for ARC Shahab Vahedi
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