From: "H.J. Lu" <hjl.tools@gmail.com>
To: Nick Clifton <nickc@redhat.com>
Cc: Mark Wielaard <mark@klomp.org>,
"binutils@sourceware.org" <binutils@sourceware.org>
Subject: Re: [PATCH] gas: Don't error when .debug_line already exists, unless .loc was used
Date: Fri, 11 Sep 2020 06:51:33 -0700 [thread overview]
Message-ID: <CAMe9rOrgKDa4Qppscd6_tK4kCsNSzwj13N4PP-hSCNwbc-jc2Q@mail.gmail.com> (raw)
In-Reply-To: <a21fc78e-2956-60f8-84d8-e1a75e87a384@redhat.com>
On Fri, Sep 11, 2020 at 5:48 AM Nick Clifton via Binutils
<binutils@sourceware.org> wrote:
>
> Hi Mark,
>
> > The tests are unfortunately arch specific because the line table is only
> > generated when actual instructions have been emitted.
>
> Are you sure about that ? How about using the NOP instruction ?
>
> I admit that some architectures do need special syntax for their
> nop instructions, but there is already a test in gas testsuite
> that handles this (see gas/testsuite/gas/all/gas.exp:org-1). The
> nop-selecting code there could probably be extracted into a library
> function then used in lots of places...
>
7.66 '.nops SIZE[, CONTROL]'
============================
This directive emits SIZE bytes filled with no-op instructions. SIZE is
absolute expression, which must be a positve value. CONTROL controls
how no-op instructions should be generated. If the comma and CONTROL
are omitted, CONTROL is assumed to be zero.
--
H.J.
next prev parent reply other threads:[~2020-09-11 13:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-11 12:47 Nick Clifton
2020-09-11 13:51 ` H.J. Lu [this message]
2020-09-11 15:40 ` Nick Clifton
2020-09-11 15:46 ` Mark Wielaard
2020-09-11 15:56 ` Nick Clifton
2020-09-14 15:17 ` Nick Clifton
-- strict thread matches above, loose matches on Subject: below --
2020-09-11 15:45 Nick Clifton
2020-09-11 18:34 ` Mark Wielaard
2020-09-14 9:45 ` Nick Clifton
2020-09-14 22:43 ` Mark Wielaard
2020-08-26 21:37 Duplicate .debug_lines (Was: [PATCH 5/5] Add --gdwarf-5 to ASM_SPEC) Mark Wielaard
2020-09-07 12:37 ` [PATCH] gas: Don't error when .debug_line already exists, unless .loc was used Mark Wielaard
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