[Bug preprocessor/35859] New: preprocessor segfaults when #include directive passed to macro

[Bug preprocessor/35859] New: preprocessor segfaults when #include directive passed to macro

[kulhanek dot 5 at wright dot edu]

Build command: cat M


-- 
           Summary: preprocessor segfaults when #include directive passed to
                    macro
           Product: gcc
           Version: 4.0.3
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: preprocessor
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kulhanek dot 5 at wright dot edu
  GCC host triplet: i486-linux-gnu
GCC target triplet: i486-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35859

[Bug preprocessor/35859] preprocessor segfaults when #include directive passed to macro

[kulhanek dot 5 at wright dot edu]

------- Comment #1 from kulhanek dot 5 at wright dot edu  2008-04-07 19:29 -------
(oops, hit enter on the wrong screen)

Error message:
In file included from test.h:2:
test.def:2:2: warning: embedding a directive within macro arguments is not
portable
In file included from /usr/include/features.h:308,
                 from /usr/include/ctype.h:27,
                 from test.def:2,
                 from test.h:2:
g @/inc8
        :8404883:10: <built-in>:0: 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.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.
make: *** [test] Error 1


Build command:
gcc --std=c99 -pedantic -E -P -x c test.h
An internal compiler error is still reported if -pedantic is removed, but it no
longer specifically mentions a segfault.

Source files:
-----test.h-----------------------------------
#define FOO(defs) /* ignored here */
#include "test.def"
----------------------------------------------

-----test.def---------------------------------
FOO(
    #include <ctype.h>
)
----------------------------------------------

As with removing -pedantic from the build command, combining
the two files into one still yields the error, but only when
one is #included is the segfault reported.


gcc version:
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--program-suffix=-4.0 --enable-__cxa_atexit --enable-clocale=gnu
--enable-libstdcxx-debug --enable-java-awt=gtk-default --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr
--disable-werror --with-tune=pentium4 --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)

-----------------------------------------------
The fact that it's failing to compile is of course the fault of my code.  But
since it's segfaulting instead of just returning an error message, I thought
I'd report it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35859

[Bug preprocessor/35859] preprocessor segfaults when #include directive passed to macro

[tromey at gcc dot gnu dot org]

------- Comment #2 from tromey at gcc dot gnu dot org  2008-04-16 16:57 -------
This works ok with 4.1 and with svn trunk.
So, I'm closing this, since 4.0 is a closed branch.


-- 

tromey at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tromey at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35859