From: Yao Qi <qiyaoltc@gmail.com>
To: Antoine Tremblay <antoine.tremblay@ericsson.com>
Cc: Yao Qi <qiyaoltc@gmail.com>, <gdb-patches@sourceware.org>
Subject: Re: [PATCH v4 4/6] Support software single step on ARM in GDBServer.
Date: Thu, 03 Dec 2015 14:49:00 -0000 [thread overview]
Message-ID: <86wpsvsi3k.fsf@gmail.com> (raw)
In-Reply-To: <56604A85.5030805@ericsson.com> (Antoine Tremblay's message of "Thu, 3 Dec 2015 08:58:29 -0500")
Antoine Tremblay <antoine.tremblay@ericsson.com> writes:
> byte_order fields seemed like a good idea at first and I liked your
> suggested change for read_memory_unsigned_integer.
>
> However GDB is using 2 byte orders : byte_order (for data) and
> byte_order_for_code to support BE8 endianness.
>
> This complicates things a bit since in common code I can't call:
>
> self->ops->read_memory_unsigned_integer (self, loc, 2)
>
> I would have no way to specify if it should read with byte_order or
> with byte_order_for_code.
We can use two methods for reading data and reading instructions
respectively, and we can hide byte_order and byte_order_for_code still.
Anyway, I strong opinion on this, either way is OK to me.
> const gdb_byte *arm_thumb2_breakpoint: This one needs to stay, since
> while on GDB's side it could be computed through regcache/gdbarch, on
> GDBServer's side it's directly a variable.
OK.
--
Yao (齐尧)
next prev parent reply other threads:[~2015-12-03 14:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-02 13:18 [PATCH v4 0/6] Support software single step and conditional breakpoints " Antoine Tremblay
2015-12-02 13:18 ` [PATCH v4 6/6] Enable conditional breakpoints for targets that support software single step " Antoine Tremblay
2015-12-02 13:18 ` [PATCH v4 3/6] Refactor arm_software_single_step to use regcache Antoine Tremblay
2015-12-03 10:28 ` Yao Qi
2015-12-03 13:11 ` Antoine Tremblay
2015-12-03 14:37 ` Yao Qi
2015-12-03 14:41 ` Antoine Tremblay
2015-12-02 13:18 ` [PATCH v4 5/6] Enable software single stepping for while-stepping actions in GDBServer Antoine Tremblay
2015-12-02 13:18 ` [PATCH v4 2/6] Share some ARM target dependent code from GDB with GDBServer Antoine Tremblay
2015-12-02 13:18 ` [PATCH v4 1/6] Replace breakpoint_reinsert_addr by get_next_pcs operation in GDBServer Antoine Tremblay
2015-12-02 13:19 ` [PATCH v4 4/6] Support software single step on ARM " Antoine Tremblay
2015-12-03 11:17 ` Yao Qi
2015-12-03 13:58 ` Antoine Tremblay
2015-12-03 14:49 ` Yao Qi [this message]
2015-12-02 13:36 ` [PATCH v4 0/6] Support software single step and conditional breakpoints " Pedro Alves
2015-12-02 13:52 ` Antoine Tremblay
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