[Bug c/21706] New: MAXPATHLEN usage in [gcc]/gcc/tlink.c

[Bug c/21706] New: MAXPATHLEN usage in [gcc]/gcc/tlink.c

[ams at gnu dot org]

Please do not use MAXPATHLEN, it is a arbitrary limit, and is not
defined on GNU.  Currently gcc 4.0.0 is unbuildable on GNU since
[gcc]/gcc/tlink.c assumes that MAXPATHLEN is defined.  Please do not
use these kind of limits in GNU programs.

Suggested fix is to declare initial_cwd as:

  char *initial_cwd;

and then instead of doing:

  getcwd (initial_cwd, sizeof (initial_cwd));

do:

  initial_cwd = getcwd (NULL, 0);

Note: getcwd (NULL, 0) is a GNU extention, and might not be available
on non-GNU platforms.  (End of Note)

Sorry for not supplying a patch, happy hacking.

-- 
           Summary: MAXPATHLEN usage in [gcc]/gcc/tlink.c
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P1
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ams at gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-gnu0.3
  GCC host triplet: i686-pc-gnu0.3
GCC target triplet: i686-pc-gnu0.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706

[Bug c/21706] MAXPATHLEN usage in [gcc]/gcc/tlink.c

[schwinge-bugzilla-gcc dot gnu dot org at nic-nac-project dot de]

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           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |schwinge-bugzilla-gcc dot
                   |                            |gnu dot org at nic-nac-
                   |                            |project dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706

[Bug middle-end/21706] MAXPATHLEN usage in [gcc]/gcc/tlink.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-22 14:04 -------
What about using PATH_MAX which is part of the POSIX standard?



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           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal
          Component|c                           |middle-end
           Keywords|                            |build
           Priority|P1                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706

[Bug middle-end/21706] MAXPATHLEN usage in [gcc]/gcc/tlink.c

[gdr at integrable-solutions dot net]

------- Additional Comments From gdr at integrable-solutions dot net  2005-05-22 15:35 -------
Subject: Re:  MAXPATHLEN usage in [gcc]/gcc/tlink.c

"pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:

| What about using PATH_MAX which is part of the POSIX standard?

I think the point was about arbitray limit; and as far as I can tell
GNU does not claim to be POSIX, does it? ;-)

-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706

[Bug middle-end/21706] MAXPATHLEN usage in [gcc]/gcc/tlink.c

[schwab at suse dot de]

------- Additional Comments From schwab at suse dot de  2005-05-22 15:36 -------
Like most POSIX limits PATH_MAX may not be defined if the actual limit is not  
fixed.  

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706

[Bug middle-end/21706] MAXPATHLEN usage in [gcc]/gcc/tlink.c

[ams at gnu dot org]

------- Additional Comments From ams at gnu dot org  2005-05-26 12:59 -------
(In reply to comment #3)
> Like most POSIX limits PATH_MAX may not be defined if the actual limit is not  
> fixed.  

Correct, and GNU doesn't have such a limit for the length of filenames, the
number of arguments passed to a program or the length of a hostname.  And
probobly a whole bunch of other things that have slipped my mind right now.
All of this is perfectly compliant with POSIX.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706

[Bug middle-end/21706] MAXPATHLEN usage in [gcc]/gcc/tlink.c

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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OtherBugsDependingO|                            |21824
              nThis|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706

[Bug middle-end/21706] MAXPATHLEN usage in [gcc]/gcc/tlink.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-19 14:00 -------
Confirmed.

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           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-06-19 14:00:56
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21706