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From: Tom Tromey <tom@tromey.com>
To: Mohamed Bouhaouel <mohamed.bouhaouel@intel.com>
Cc: gdb-patches@sourceware.org,  blarsen@redhat.com,  eliz@gnu.org
Subject: Re: [PATCH v3 3/3] gdb, zpoint: check for target hardware breakpoint support
Date: Tue, 14 Nov 2023 07:45:13 -0700	[thread overview]
Message-ID: <878r70qtqe.fsf@tromey.com> (raw)
In-Reply-To: <20231114133532.3877-4-mohamed.bouhaouel@intel.com> (Mohamed Bouhaouel's message of "Tue, 14 Nov 2023 14:35:32 +0100")

>>>>> Mohamed Bouhaouel <mohamed.bouhaouel@intel.com> writes:

> In 'can_use_hw_breakpoint', check if the target supports
> hardware-assisted breakpoints.  This will prevent GDB
> from trying to insert the hardware breakpoint in case
> it is not supported.

Thanks.

One question I have is how this is tested.

Another oddity is that supposedly a remote can reply '' to a z packet,
meaning it isn't supported.  However, insert_hw_breakpoint (at least)
doesn't seem to record this response.

> +	  /* If hw read watchpoints are not supported while hw access are,
> +	     GDB will try to insert the watchpoint as hw access.  */
> +	  bool access_support = supports_z_point_type (
> +	    bptype_to_target_hw_bp_type (bp_access_watchpoint));

Formatting looks wrong here.

Tom

  reply	other threads:[~2023-11-14 14:45 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-14 13:35 [PATCH v3 0/3] Check for zpoint support when handling watchpoints Mohamed Bouhaouel
2023-11-14 13:35 ` [PATCH v3 1/3] gdb, gdbserver, zpoint: report z_point support Mohamed Bouhaouel
2023-11-14 13:45   ` Eli Zaretskii
2023-11-14 14:36   ` Tom Tromey
2023-11-15 17:31     ` Bouhaouel, Mohamed
2023-11-14 13:35 ` [PATCH v3 2/3] gdb, breakpoint: add a breakpoint type converter Mohamed Bouhaouel
2023-11-14 14:37   ` Tom Tromey
2023-11-15 17:44     ` Bouhaouel, Mohamed
2023-11-14 13:35 ` [PATCH v3 3/3] gdb, zpoint: check for target hardware breakpoint support Mohamed Bouhaouel
2023-11-14 14:45   ` Tom Tromey [this message]
2023-11-15 18:18     ` Bouhaouel, Mohamed
2023-11-17 13:42       ` Tom Tromey

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