[Bug preprocessor/12753] New: Memory corruption in cpp on bad input

[Bug preprocessor/12753] New: Memory corruption in cpp on bad input

[hjl at lucon dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

           Summary: Memory corruption in cpp on bad input
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: preprocessor
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

# /usr/gcc-3.3/bin/gcc -M -O foo.c
cc1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

[Bug preprocessor/12753] Memory corruption in cpp on bad input

[hjl at lucon dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753



------- Additional Comments From hjl at lucon dot org  2003-10-24 06:48 -------
Created an attachment (id=4986)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4986&action=view)
A testcase (foo.c)

This is the bad input which causes gcc 3.3.2 to dump core.

[Bug preprocessor/12753] [3.3,3.4 regression] Memory corruption in cpp on bad input

[ehrhardt at mathematik dot uni-ulm dot de]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753


ehrhardt at mathematik dot uni-ulm dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-invalid-code
   Last reconfirmed|0000-00-00 00:00:00         |2003-10-24 11:23:17
               date|                            |
            Summary|Memory corruption in cpp on |[3.3,3.4 regression] Memory
                   |bad input                   |corruption in cpp on bad
                   |                            |input


------- Additional Comments From ehrhardt at mathematik dot uni-ulm dot de  2003-10-24 11:23 -------
Confirmed with 3.3.2-prerelease and 3.4. This is a regression from 3.2.
The trigger is a missing ")" in a macro invokation.

[Bug preprocessor/12753] [3.3/3.4 regression] Memory corruption in cpp on bad input

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3,3.4 regression] Memory |[3.3/3.4 regression] Memory
                   |corruption in cpp on bad    |corruption in cpp on bad
                   |input                       |input


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-10-24 16:47 -------
>From Phil's regression hunter: Search converges between 2002-06-02-trunk (#80) and 2002-07
-14-trunk (#81).

[Bug preprocessor/12753] [3.3/3.4 regression] Memory corruption in cpp on bad input

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |3.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4 regression] Memory corruption in cpp on bad input

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2003-12-24 21:19 -------
CPP maintainers --
Do any of you think this worth fixing in 3.3.x?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |neil at daikokuya dot co dot
                   |                            |uk, zack at codesourcery dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4 regression] Memory corruption in cpp on bad input

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2003-12-24 21:28 -------
Yes, I do.

I will look at this, but I would really appreciate a reduced testcase if possible.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4 regression] Memory corruption in cpp on bad input

[stl at caltech dot edu]

------- Additional Comments From stl at caltech dot edu  2003-12-27 21:32 -------
I spent a little time chopping things out of the test case. It seems to be 
very sensitive to the size of the file. I gave up after chopping 20 KB out of 
the file.

C:\Temp>gcc -M foo2.c
cc1.exe: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.mingw.org/bugs.shtml> for instructions.

C:\Temp>

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4 regression] Memory corruption in cpp on bad input

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2003-12-27 23:23 -------
Mine.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |zack at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4/3.5 regression] Memory corruption in cpp on bad input

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-01-21 04:16 -------
Zack --
I'm going to make a pre-release within two days, do you
think you'll have something ready by then?

Thanks,

-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4/3.5 regression] Memory corruption in cpp on bad input

[zack at codesourcery dot com]

------- Additional Comments From zack at codesourcery dot com  2004-01-21 04:27 -------
Subject: Re:  [3.3/3.4/3.5 regression] Memory
 corruption in cpp on bad input


Sorry, I've been concentrating on the c-decl.c mess in 3.4.

zw


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4/3.5 regression] Memory corruption in cpp on bad input

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-02-15 12:36 -------
Adjust milestone

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.3                       |3.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4/3.5 regression] Memory corruption in cpp on bad input

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-03-21 18:50 -------
I cannot reproduce this problem in GCC 3.4.0.

Is there a more reliable way of reproducing it?

In any case, I'm retargeting this at 3.4.1.

Gaby and I have already agreed that the 3.4.x target milestones take precedence
over the 3.3.x milestones.  Gaby, please note that this used to be marked as
targeted at 3.3.4, but is now targeted at 3.4.1.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gdr at integrable-solutions
                   |                            |dot net
   Target Milestone|3.3.4                       |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4/3.5 regression] Memory corruption in cpp on bad input

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2004-06-01 04:26 -------
IIRC this one was fixed already...?

Has nothing to do with the c-decl.c rewrite, just for the record.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753

[Bug preprocessor/12753] [3.3/3.4/3.5 regression] Memory corruption in cpp on bad input

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-06-09 19:21 -------
Already fixed -- at least for me.  Reopen if this still occurs.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12753