[Bug bootstrap/10996] New: Do not create files in the source directory

[Bug bootstrap/10996] New: Do not create files in the source directory

[ludovic.brenta@insalien.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=10996

           Summary: Do not create files in the source directory
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P5
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ludovic.brenta@insalien.org
                CC: dhazeghi@yahoo.com,gcc-
                    bugs@gcc.gnu.org,pinskia@physics.uc.edu
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

The build instructions clearly say that people _must_ build in a different
directory than the one containing the sources.  For example, let the source
directory by ~/src/gcc and the object directory be ~/src/gcc-obj.  The 
bootstrapping sequence would be:

$ cd ~/src/gcc
$ cvs -z3 update
$ rm -rf ~/src/gcc-obj
$ mkdir ~/src/gcc-obj
$ cd ~/src/gcc-obj
$ ../gcc/configure
$ make bootstrap
$ cd gcc
$ make gnatlib_and_tools
$ make gnatlib-shared
$ cd ..
$ make install

The problem is that "make bootstrap" creates a few files in the source 
directory.  There have been instances where these files contained errors
which caused subsequent bootstraps to fail, even after another "cvs update"
(see PR 10740 for one example).  It also means that the second step, "cvs
update", is not guaranteed to produce a clean source directory from which one
can make a reliable, reproducible build.

I suggest that the bootstrap process be changed so as not to write any file
in the source directory.  Ideally, it should be possible to boostrap with the
source directory on a read-only filesystem.

For this, someone more knowledgeable than me should look at the bootstrap 
process to find all such files.  So far, I have identified the following files
on gcc-3_3-branch as of 2003-05-27:

gcc/fastjar/fastjar.info
gcc/fastjar/jar.1
gcc/fastjar/grepjar.1
gcc/gcc/cp/parse.c
gcc/gcc/cp/parse.h
gcc/gcc/doc/cpp.1
gcc/gcc/doc/fsf-funding.7
gcc/gcc/doc/gcc.1
gcc/gcc/doc/gcov.1
gcc/gcc/doc/gfdl.7
gcc/gcc/doc/gpl.7
gcc/gcc/f/g77.1
gcc/gcc/java/gcj.1
gcc/gcc/java/gcjh.1
gcc/gcc/java/gij.1
gcc/gcc/java/jcf-dump.1
gcc/gcc/java/jv-convert.1
gcc/gcc/java/jv-scan.1
gcc/gcc/java/parse.c
gcc/gcc/java/parse-scan.c
gcc/gcc/java/rmic.1
gcc/gcc/java/rmiregistry.1
gcc/gcc/objc/objc-parse.c
gcc/gcc/objc/objc-parse.y
gcc/gcc/c-parse.y
gcc/gcc/c-parse.c
gcc/gcc/gengtype-lex.c
gcc/gcc/gengtype-yacc.c
gcc/gcc/gengtype-yacc.h


PS. The host, target and build triplets are probably not relevant, but I added 
them anyway.

-- 
Ludovic Brenta.



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[Bug bootstrap/10996] Do not create files in the source directory

[pinskia@physics.uc.edu]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10996


pinskia@physics.uc.edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-05-27 19:31:52
               date|                            |


------- Additional Comments From pinskia@physics.uc.edu  2003-05-27 19:31 -------
Some of these have been semi-fixed on the mainline with the following patch, meaning 
that you have to change where parsedir/docobjdir is:
2003-01-10  Geoffrey Keating  <geoffk@apple.com>

        * Makefile.in (parsedir): New variable.
        (docobjdir): New variable.
        (c-parse.o, c-parse.c, c-parse.y, gengtype-lex.o, gengtype-yacc.o,
        gengtype-lex.c, gengtype-yacc.c): Use parsedir.
        (info, cpp.info, gcc.info, gccint.info, gccinstall.info,
        cppinternals.info, generated-manpages, gcov.1, cpp.1, gcc.1, gfdl.7,
        gpl.7, fsf-funding.7, maintainer-clean, install-info, install-man):
        Use docobjdir.
        * objc/Make-lang.in (objc/objc-parse.c, objc/objc-parse.y,
        objc.maintainer-clean): Use parsedir.
2003-01-30  Loren James Rittle  <ljrittle@acm.org>

        * Make-lang.in (po-generated): Find the targets in $(parsedir).      
        Propagate change to all other rules as required.
        (java/parse-scan.o): Add explicit dependency on
        $(parsedir)/java/parse-scan.c .

Here is the updated ones that need to be fixed still:

gcc/fastjar/fastjar.info
gcc/fastjar/jar.1
gcc/fastjar/grepjar.1
gcc/gcc/f/g77.1
gcc/gcc/java/gcj.1
gcc/gcc/java/gcjh.1
gcc/gcc/java/gij.1
gcc/gcc/java/jcf-dump.1
gcc/gcc/java/jv-convert.1
gcc/gcc/java/jv-scan.1
gcc/gcc/java/parse.c
gcc/gcc/java/parse-scan.c
gcc/gcc/java/rmic.1
gcc/gcc/java/rmiregistry.1

all the ones in gcc/gcc/{f,java} should be easy to fix and even the ones in fastjar are easy 
too.
(note since gcc/gcc/cp/parse.{c,h} is no longer generated it does need fixing)




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[Bug bootstrap/10996] Do not create files in the source directory

[neroden 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=10996



------- Additional Comments From neroden at gcc dot gnu dot org  2003-08-03 18:20 -------
java/parse.c and java/parse-scan.c belong in ${parsedir}.
The .1 and .info files from GCC belong in ${docobjdir}, I believe.
Fastjar needs its own separate fix to do the same thing.

I'm not sure of the current status.

[Bug bootstrap/10996] Do not create files in the source directory

[ludovic dot brenta at insalien 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=10996



------- Additional Comments From ludovic dot brenta at insalien dot org  2003-08-09 07:25 -------
I bootstrapped 3.3.1 and the bug is still there.  Here are the files created in 
the source directory:

gcc/fastjar/fastjar.info
gcc/fastjar/grepjar.1
gcc/fastjar/jar.1
gcc/gcc/ada/gnat-style.info
gcc/gcc/ada/gnat_rm.info
gcc/gcc/ada/gnat_ug_unx.info
gcc/gcc/ada/gnat_ug_vms.info
gcc/gcc/ada/gnat_ug_vxw.info
gcc/gcc/ada/gnat_ug_wnt.info
gcc/gcc/c-parse.c
gcc/gcc/c-parse.y
gcc/gcc/cp/parse.c
gcc/gcc/cp/parse.h
gcc/gcc/doc/cpp.1
gcc/gcc/doc/cpp.info
gcc/gcc/doc/cppinternals.info
gcc/gcc/doc/fsf-funding.7
gcc/gcc/doc/gcc.1
gcc/gcc/doc/gcc.info
gcc/gcc/doc/gccinstall.info
gcc/gcc/doc/gccint.info
gcc/gcc/doc/gcov.1
gcc/gcc/doc/gfdl.7
gcc/gcc/doc/gpl.7
gcc/gcc/f/g77.1
gcc/gcc/f/g77.info
gcc/gcc/gengtype-lex.c
gcc/gcc/gengtype-yacc.c
gcc/gcc/gengtype-yacc.h
gcc/gcc/java/gcj.1
gcc/gcc/java/gcj.info
gcc/gcc/java/gcjh.1
gcc/gcc/java/gij.1
gcc/gcc/java/jcf-dump.1
gcc/gcc/java/jv-convert.1
gcc/gcc/java/jv-scan.1
gcc/gcc/java/parse-scan.c
gcc/gcc/java/parse.c
gcc/gcc/java/rmic.1
gcc/gcc/java/rmiregistry.1
gcc/gcc/objc/objc-parse.c
gcc/gcc/objc/objc-parse.y
gcc/libf2c/libI77/autom4te.cache

P.S. I'll try with the mainline, but since a bootstrap takes 8 hours on my old
machine, please bear with me :)

-- 
Ludovic Brenta.

[Bug bootstrap/10996] Do not create files in the source directory

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10996


dhazeghi at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |build
   Target Milestone|3.4                         |---

[Bug bootstrap/10996] Do not create files in the source directory

[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=10996


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-05-27 19:31:52         |2003-09-21 04:58:35
               date|                            |


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-09-21 04:58 -------
Some one reported this to the gcc@ list: <http://gcc.gnu.org/ml/gcc/2003-09/
msg00920.html> on the mainline with a full list of the files.

[Bug bootstrap/10996] Do not create files in the source directory

[kcook 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=10996


kcook at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kcook at gcc dot gnu dot org
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |3.4


------- Additional Comments From kcook at gcc dot gnu dot org  2003-10-23 14:18 -------
I believe this request is finally fulfilled.  The GCC 3.4 branch can now be
built from a read-only directory.

Some of the relevant patches checked in were:
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00196.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00666.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00805.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00817.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00818.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00826.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00829.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00845.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00848.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00862.html
http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00864.html

There is a new configuration option --enable-generated-files-in-srcdir which
restores the old behavior for distributions of releases.  This feature, though
working, needs a little Makefile tweaking for proper use by the endusers without
bison, flex, and makeinfo.  For that, I'll file a new PR.

Two files are still being produced by fastjar, of which GCC is a downstream
user.  I'll submit a patch for that to the upstream maintainer as well as
propose a local patch for GCC.

I'm closing this PR.