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Re: [PATCH v2 02/15] linux-user/sparc: Tidy syscall trap


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v2 02/15] linux-user/sparc: Tidy syscall trap
Date: Thu, 16 Feb 2023 08:51:51 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.7.2

On 16/2/23 06:45, Richard Henderson wrote:
Use TT_TRAP.

For sparc32, 0x88 is the "Slowaris" system call, currently BAD_TRAP
in the kernel's ttable_32.S.  For sparc64, 0x110 is tl0_linux32, the
sparc32 trap, now folded into the TARGET_ABI32 case via TT_TRAP.

For sparc64, there does still exist trap 0x111 as tl0_oldlinux64,
which was replaced by 0x16d as tl0_linux64 in 1998.  Since no one
has noticed, don't bother implementing it now.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
  linux-user/sparc/cpu_loop.c | 14 +++++++-------
  1 file changed, 7 insertions(+), 7 deletions(-)

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




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