From: "Alex Bennée" <alex.bennee@linaro.org>
To: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Cc: qemu-devel@nongnu.org, "Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: Re: [PATCH] gdbstub: update aarch64-core.xml
Date: Mon, 19 May 2025 13:55:11 +0100 [thread overview]
Message-ID: <87msb8sqts.fsf@draig.linaro.org> (raw)
In-Reply-To: <20250519-gdbstub-aarch64-pstate-xml-v1-1-b4dbe87fe7c6@linaro.org> (Manos Pitsidianakis's message of "Mon, 19 May 2025 14:01:47 +0300")
Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:
> Update aarch64-core.xml to include field definitions for PSTATE, which
> in gdb is modelled in the cpsr (current program status register)
> pseudo-register, named after the actual cpsr register in armv7.
>
> Defining the fields layout of the register allows easy inspection of for
> example, the current exception level (EL):
>
> For example. Before booting a Linux guest, EL=2, but after booting and
> Ctrl-C'ing in gdb, we get EL=0:
>
> (gdb) info registers $cpsr
> cpsr 0x20402009 [ SP EL=2 BTYPE=0 PAN C ]
> (gdb) cont
> Continuing.
> ^C
> Thread 2 received signal SIGINT, Interrupt.
> 0x0000ffffaaff286c in ?? ()
> (gdb) info registers $cpsr
> cpsr 0x20001000 [ EL=0 BTYPE=0 SSBS C ]
>
> The aarch64-core.xml has been updated to match exactly the version
> retrieved from upstream gdb, retrieved in 2025-05-19 from HEAD commit
> 9f4dc0b137c86f6ff2098cb1ab69442c69d6023d.
>
> https://sourceware.org/git/?p=binutils-gdb.git;a=tree;h=9f4dc0b137c86f6ff2098cb1ab69442c69d6023d
>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Queued to gdbstub/next, thanks.
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
next prev parent reply other threads:[~2025-05-19 12:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-19 11:01 [PATCH] gdbstub: update aarch64-core.xml Manos Pitsidianakis
2025-05-19 12:55 ` Alex Bennée [this message]
2025-05-19 13:45 ` Manos Pitsidianakis
2025-05-19 16:05 ` Alex Bennée
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