From: Sascha Hauer <s.hauer@pengutronix.de>
To: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] ARM: aarch64: Re-implement most of barebox_arm_entry() in assembly
Date: Mon, 9 Sep 2019 10:42:20 +0200 [thread overview]
Message-ID: <20190909084220.23dw5yg7ekwni5jw@pengutronix.de> (raw)
In-Reply-To: <20190907235645.22442-1-andrew.smirnov@gmail.com>
On Sat, Sep 07, 2019 at 04:56:45PM -0700, Andrey Smirnov wrote:
> GCC9 now produces the following warning:
>
> common.h:51:2: warning: listing the stack pointer register ‘sp’ in a clobber list is deprecated [-Wdeprecated]
> 51 | __asm__ __volatile__("mov sp, %0"
> | ^~~~~~~
> common.h:51:2: note: the value of the stack pointer after an ‘asm’ statement must be the same as it was before the statement
Hm, this makes an arm_setup_stack() function illegal by definition. I
think we have work to do :(
Can you change both arm32 and aarch64 to assembly in this patch? We have
to do something anyway, changing both architectures might make this
patch simpler.
Sascha
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next prev parent reply other threads:[~2019-09-09 8:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-07 23:56 Andrey Smirnov
2019-09-09 8:42 ` Sascha Hauer [this message]
2019-09-10 4:29 ` Andrey Smirnov
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