From: Jakub Jelinek <jakub@redhat.com>
To: Dodji Seketeli <dodji@redhat.com>
Cc: "Markus Trippelsdorf" <markus@trippelsdorf.de>,
"Bernd Edlinger" <bernd.edlinger@hotmail.de>,
"GCC Patches" <gcc-patches@gcc.gnu.org>,
"Tom Tromey" <tromey@redhat.com>,
"Manuel López-Ibáñez" <lopezibanez@gmail.com>
Subject: Re: [PATCH] preprocessor/58580 - preprocessor goes OOM with warning for zero literals
Date: Fri, 24 Jan 2014 15:44:00 -0000 [thread overview]
Message-ID: <20140124154419.GQ892@tucnak.redhat.com> (raw)
In-Reply-To: <87iot9qtff.fsf@redhat.com>
On Fri, Jan 24, 2014 at 04:40:52PM +0100, Dodji Seketeli wrote:
> > The patch causes http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59935 .
> > The follow-up patch (fp == NULL check) doesn't help.
>
> I am looking into that, sorry for the inconvenience.
I'd say we want something like following. Note that while the c == NULL
bailout would be usually sufficient, if you'll do:
echo foobar > '<command-line>'
it would still crash. Line 0 is used only for the special locations
(command line, built-in macros) and there is no file associated with it
anyway.
--- gcc/input.c.jj 2014-01-24 16:32:34.000000000 +0100
+++ gcc/input.c 2014-01-24 16:41:42.012671452 +0100
@@ -698,7 +698,13 @@ location_get_source_line (expanded_locat
static char *buffer;
static ssize_t len;
- fcache * c = lookup_or_add_file_to_cache_tab (xloc.file);
+ if (xloc.line == 0)
+ return NULL;
+
+ fcache *c = lookup_or_add_file_to_cache_tab (xloc.file);
+ if (c == NULL)
+ return NULL;
+
bool read = read_line_num (c, xloc.line, &buffer, &len);
if (read && line_len)
Jakub
next prev parent reply other threads:[~2014-01-24 15:44 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-31 14:48 Bernd Edlinger
2013-10-31 15:06 ` Jakub Jelinek
2013-10-31 15:19 ` Dodji Seketeli
2013-10-31 18:26 ` Jakub Jelinek
2013-11-04 11:52 ` Dodji Seketeli
2013-11-04 11:59 ` Jakub Jelinek
2013-11-04 15:42 ` Dodji Seketeli
2013-11-05 0:10 ` Bernd Edlinger
2013-11-05 9:50 ` Dodji Seketeli
2013-11-05 11:19 ` Bernd Edlinger
2013-11-05 11:43 ` Dodji Seketeli
2013-11-06 22:27 ` Bernd Edlinger
2013-11-04 12:06 ` Bernd Edlinger
2013-11-04 12:15 ` Jakub Jelinek
2013-11-04 12:32 ` Bernd Edlinger
2013-11-04 15:21 ` Dodji Seketeli
2013-11-11 10:49 ` Dodji Seketeli
2013-11-11 14:35 ` Jakub Jelinek
2013-11-11 17:13 ` Dodji Seketeli
2013-11-12 16:42 ` Dodji Seketeli
2013-11-13 5:10 ` Bernd Edlinger
2013-11-13 9:40 ` Dodji Seketeli
2013-11-13 9:43 ` Bernd Edlinger
2013-11-13 9:49 ` Dodji Seketeli
2013-11-13 9:49 ` Dodji Seketeli
2013-11-13 9:51 ` Jakub Jelinek
2013-11-14 15:12 ` Dodji Seketeli
2013-12-09 20:11 ` Tom Tromey
2014-01-21 12:28 ` Bernd Edlinger
2014-01-22 8:16 ` Dodji Seketeli
2014-01-23 17:12 ` Jakub Jelinek
2014-01-24 2:58 ` Bernd Edlinger
2014-01-24 7:53 ` Dodji Seketeli
2014-01-24 15:05 ` Markus Trippelsdorf
2014-01-24 15:41 ` Dodji Seketeli
2014-01-24 15:44 ` Jakub Jelinek [this message]
2014-01-24 16:09 ` Dodji Seketeli
2014-01-24 16:13 ` Jakub Jelinek
2014-01-24 23:02 ` Markus Trippelsdorf
2014-01-24 23:20 ` Markus Trippelsdorf
2014-01-28 13:20 ` Dodji Seketeli
2014-01-28 13:23 ` Dodji Seketeli
2014-01-28 18:40 ` H.J. Lu
2014-01-29 11:28 ` Dodji Seketeli
-- strict thread matches above, loose matches on Subject: below --
2013-10-31 13:45 Dodji Seketeli
2013-10-31 17:30 ` Manuel López-Ibáñez
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