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Message-ID: <CACq8dh00uxgCd4mxEtRgBL8W975e6Cq_GUeSsqFfRY=VNrpJLQ@mail.gmail.com>
Date: Wed, 13 May 2020 13:49:22 -0500
From: John Arnold <iohannes.eduardus.arnold@...il.com>
To: Rich Felker <dalias@...ifal.cx>
Cc: Anders Magnusson <ragge@...d.ltu.se>, musl@...ts.openwall.com, pcc@...ts.ludd.ltu.se
Subject: Re: Re: [Pcc] PCC unable to build musl 1.2.0 (and
likely earlier)
On Wed, May 13, 2020 at 1:04 PM Rich Felker <dalias@...ifal.cx> wrote:
> That doesn't sound related. %%ax appearing in the input to the
> assembler would always indicate a bug in either the compiler or the
> inline asm text in the program being compiled.
I did some poking around with pcc -S and it looked like %%ax was only
appearing in the context of the fnstsw instruction, which in pcc's
source only occurs once, in line 329 of arch/i386/local2.c:
expand(p, 0, "\tfnstsw %%ax\n");
My assembly is *really* basic, so I don't know what that means, but
hopefully it's relevant?
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