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From: Fabiano Rosas <farosas@suse.de>
To: "Philippe Mathieu-Daudé" <philmd@linaro.org>,
	qemu-devel@nongnu.org,
	"Richard Henderson" <richard.henderson@linaro.org>
Cc: Peter Maydell <peter.maydell@linaro.org>,
	Claudio Fontana <cfontana@suse.de>,
	qemu-arm@nongnu.org
Subject: Re: [PATCH-for-8.0 0/2] target/arm/gdbstub: Fix builds when TCG is disabled
Date: Wed, 22 Mar 2023 14:45:34 -0300	[thread overview]
Message-ID: <877cv8smrl.fsf@suse.de> (raw)
In-Reply-To: <3d67c765-20fc-9ae9-1dfe-753f4ef16263@linaro.org>

Philippe Mathieu-Daudé <philmd@linaro.org> writes:

> On 22/3/23 15:29, Philippe Mathieu-Daudé wrote:
>> Fix when building QEMU configured with --disable-tcg:
>> 
>>    Undefined symbols for architecture arm64:
>>      "_arm_v7m_get_sp_ptr", referenced from:
>>          _m_sysreg_get in target_arm_gdbstub.c.o
>>      "_arm_v7m_mrs_control", referenced from:
>>          _arm_gdb_get_m_systemreg in target_arm_gdbstub.c.o
>>      "_pauth_ptr_mask", referenced from:
>>          _aarch64_gdb_get_pauth_reg in target_arm_gdbstub64.c.o
>>    ld: symbol(s) not found for architecture arm64
>>    clang: error: linker command failed with exit code 1 (use -v to see invocation)
>
> Beside having the non-TCG configs tested in CI, (I think) we can avoid
> such breakage by moving the TCG-specific declarations from
> target/arm/internals.h to some target/arm/tcg/tcg-internals.h header.
> (target/arm/internals.h is 1400+ LoC anyway). Worth it?

I think it would be worth it. That still leaves the issue of these small
functions that are semantically related to what is being emulated but
don't need any TCG-specific symbols. It would be nice if we had a
default approach for where to put them. Without going back to sticking
everything in helper.c, of course. =)


  reply	other threads:[~2023-03-22 17:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-22 14:29 [PATCH-for-8.0 0/2] target/arm/gdbstub: Fix builds when TCG is disabled Philippe Mathieu-Daudé
2023-03-22 14:29 ` [PATCH-for-8.0 1/2] target/arm/gdbstub: Restrict aarch64_gdb_get_pauth_reg() to CONFIG_TCG Philippe Mathieu-Daudé
2023-03-22 15:15   ` Richard Henderson
2023-03-28 13:34     ` Philippe Mathieu-Daudé
2023-03-22 14:29 ` [PATCH-for-8.0 2/2] target/arm/gdbstub: Only advertise M-profile features if TCG available Philippe Mathieu-Daudé
2023-03-22 15:13   ` Richard Henderson
2023-03-22 16:21   ` Alex Bennée
2023-03-22 14:32 ` [PATCH-for-8.0 0/2] target/arm/gdbstub: Fix builds when TCG is disabled Philippe Mathieu-Daudé
2023-03-22 17:45   ` Fabiano Rosas [this message]
2023-03-28  9:54 ` Peter Maydell
2023-03-28 13:20   ` Philippe Mathieu-Daudé
2023-03-28 13:33     ` Philippe Mathieu-Daudé

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