From: "H.J. Lu" <hjl.tools@gmail.com>
To: Alex Coplan <Alex.Coplan@arm.com>
Cc: Alan Modra <amodra@gmail.com>,
"binutils@sourceware.org" <binutils@sourceware.org>
Subject: Re: [PATCH] gas: Fix internal error on long local labels
Date: Fri, 7 Aug 2020 06:44:17 -0700 [thread overview]
Message-ID: <CAMe9rOqw62kA6fYLH438Wn=-3_=KS7HR6Um7p_0Ux7wvH7srEg@mail.gmail.com> (raw)
In-Reply-To: <VI1PR08MB40297AF7B8B39A32F8D7AC41EA480@VI1PR08MB4029.eurprd08.prod.outlook.com>
On Thu, Aug 6, 2020 at 9:49 AM Alex Coplan <Alex.Coplan@arm.com> wrote:
>
> > -----Original Message-----
> > From: Alan Modra <amodra@gmail.com>
> > Sent: 06 August 2020 14:56
> > To: Alex Coplan <Alex.Coplan@arm.com>
> > Cc: binutils@sourceware.org
> > Subject: Re: [PATCH] gas: Fix internal error on long local labels
> >
> > On Wed, Aug 05, 2020 at 02:51:05PM +0100, Alex Coplan wrote:
> > > * read.c (read_a_source_file): Use long for local labels, detect
> > > overflow and raise an error for overly-long labels.
> > > * testsuite/gas/all/gas.exp: Add local-label-overflow test.
> > > * testsuite/gas/all/local-label-overflow.d: New test.
> > > * testsuite/gas/all/local-label-overflow.l: Error output.
> > > * testsuite/gas/all/local-label-overflow.s: Input.
> >
> > OK, but fix the following nits please.
>
> Thanks. Pushed to master with nits fixed as
> d27aad4ec307d91a6b9056127c6c248044391d7f.
The test failed on 32-bit hosts:
./as-new -o x.o
/export/gnu/import/git/sources/binutils-gdb/gas/testsuite/gas/all/local-label-overflow.s
/export/gnu/import/git/sources/binutils-gdb/gas/testsuite/gas/all/local-label-overflow.s:
Assembler messages:
/export/gnu/import/git/sources/binutils-gdb/gas/testsuite/gas/all/local-label-overflow.s:1:
Error: local label too large near 888888888888888888888888888:
/export/gnu/import/git/sources/binutils-gdb/gas/testsuite/gas/all/local-label-overflow.s:1:
Error: local label too large near 888888888888888888:
/export/gnu/import/git/sources/binutils-gdb/gas/testsuite/gas/all/local-label-overflow.s:1:
Error: local label too large near 888888888:
I am checking in this to fix it:
diff --git a/gas/read.c b/gas/read.c
index bd896580e5..cb41cc0685 100644
--- a/gas/read.c
+++ b/gas/read.c
@@ -1227,7 +1227,10 @@ read_a_source_file (const char *name)
/* Overflow: stop processing the label. */
if (temp == -1)
- continue;
+ {
+ ignore_rest_of_line ();
+ continue;
+ }
if (LOCAL_LABELS_DOLLAR
&& *input_line_pointer == '$'
> Is it worth backporting?
>
> Alex
--
H.J.
next prev parent reply other threads:[~2020-08-07 13:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-05 13:51 Alex Coplan
2020-08-06 13:56 ` Alan Modra
2020-08-06 16:48 ` Alex Coplan
2020-08-07 13:44 ` H.J. Lu [this message]
2020-08-17 17:22 ` Alex Coplan
2020-08-17 17:34 ` H.J. Lu
2020-09-01 10:43 ` Alex Coplan
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