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Re: [patch] aarch64: PR 19806: watchpoints: false negatives + PR 20207 contiguous ones
- From: Eli Zaretskii <eliz at gnu dot org>
- To: Jan Kratochvil <jan dot kratochvil at redhat dot com>
- Cc: palves at redhat dot com, qiyaoltc at gmail dot com, gdb-patches at sourceware dot org
- Date: Wed, 02 May 2018 17:50:20 +0300
- Subject: Re: [patch] aarch64: PR 19806: watchpoints: false negatives + PR 20207 contiguous ones
- References: <20170327210753.GA29656@host1.jankratochvil.net> <20171018195237.GA19714@host1.jankratochvil.net> <867evczxik.fsf@gmail.com> <20171103220437.GA13979@host1.jankratochvil.net> <20180321190316.GA32598@host1.jankratochvil.net> <1e06eb53-60f4-0800-a4f6-458e02f840bd@redhat.com> <20180426201216.GA218540@host1.jankratochvil.net> <20180501230339.GA3136080@host1.jankratochvil.net> <20180501230606.GA3138797@host1.jankratochvil.net>
- Reply-to: Eli Zaretskii <eliz at gnu dot org>
> Date: Wed, 2 May 2018 01:06:06 +0200
> From: Jan Kratochvil <jan.kratochvil@redhat.com>
> Cc: Yao Qi <qiyaoltc@gmail.com>, gdb-patches@sourceware.org
>
> diff --git a/gdb/NEWS b/gdb/NEWS
> index 6193070023..46f6635dda 100644
> --- a/gdb/NEWS
> +++ b/gdb/NEWS
> @@ -42,6 +42,16 @@ SH-5/SH64 ELF sh64-*-elf*, SH-5/SH64 support in sh*
> SH-5/SH64 running GNU/Linux SH-5/SH64 support in sh*-*-linux*
> SH-5/SH64 running OpenBSD SH-5/SH64 support in sh*-*-openbsd*
>
> +* Aarch64/Linux hardware watchpoints improvements
> +
> + Hardware watchpoints on unaligned addresses are now properly
> + supported when running Linux kernel 4.10 or higher: read and access
> + watchpoints are no longer spuriously missed, and all watchpoints
> + lengths between 1 and 8 bytes are supported. On older kernels,
> + watchpoints set on unaligned addresses are no longer missed, with
> + the tradeoff that there is a possibility of false hits being
> + reported.
> +
> *** Changes in GDB 8.1
This part is approved.
Thanks.