cc1plus freeze

[Chris Butler]

Hi,

cc1plus appears to be hanging on my system compiling a certain
file. The preprocessed output can be retreived from:

http://www.sandy.force9.co.uk/~chrisb/ipcbase.ii.gz

Apologies for the size (~500K ungzipped, 77K gzipped), but I can't
find what is causing it, and haven't experienced the problem with
other files.

What happens is that cc1plus "freezes", and it seems to be going round
in an endless loop.

Output of gdb:

Attaching to program `/usr/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.92.31/cc1plus',
process 1605
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
schedule_block (b=11, file=0x0) at /usr/src/egcs/gcc/sched.c:3478
3478            if (GET_CODE (line) == NOTE && NOTE_LINE_NUMBER (line) > 0)
(gdb) bt
#0  schedule_block (b=11, file=0x0) at /usr/src/egcs/gcc/sched.c:3478
#1  0x81219d9 in schedule_insns (dump_file=0x0)
    at /usr/src/egcs/gcc/sched.c:4442
#2  0x804c57c in rest_of_compilation (decl=0x8ddc9cc)
    at /usr/src/egcs/gcc/toplev.c:4037
#3  0x81696dc in finish_function (lineno=186, flags=0, nested=0)
    at /usr/src/egcs/gcc/cp/decl.c:13859
#4  0x818e9b7 in yyparse () at parse.y:645
#5  0x804abd2 in compile_file (name=0xbffffbf7 "ipcbase.ii")
    at /usr/src/egcs/gcc/toplev.c:2899
#6  0x804dcb3 in main (argc=11, argv=0xbffffaa4)
    at /usr/src/egcs/gcc/toplev.c:5184
(gdb)

Output of '-v':
c++ -DHAVE_CONFIG_H -I. -I/usr/local/src/bMail/lib -I../include -I/usr/local/src/bMail/include -O6 -g -Wall -save-temps -v -Wp,-MD,.deps/ipcbase.p -c -fPIC -DPIC /usr/local/src/bMail/lib/ipcbase.cc
Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.92.31/specs
gcc version egcs-2.92.31 19981220 (gcc2 ss-980609 experimental)
 /usr/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.92.31/cpp -lang-c++ -v -I. -I/usr/local/src/bMail/lib -I../include -I/usr/local/src/bMail/include -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus -D__GNUC_MINOR__=92 -D__ELF__ -Dunix -D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__ -D__linux__ -D__unix -D__linux -Asystem(posix) -D__EXCEPTIONS -D__OPTIMIZE__ -g -Wall -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -Di686 -Dpentiumpro -D__i686 -D__i686__ -D__pentiumpro -D__pentiumpro__ -D__PIC__ -D__pic__ -DHAVE_CONFIG_H -DPIC -MD .deps/ipcbase.p /usr/local/src/bMail/lib/ipcbase.cc ipcbase.ii
GNU CPP version egcs-2.92.31 19981220 (gcc2 ss-980609 experimental) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
 .
 /usr/local/src/bMail/lib
 ../include
 /usr/local/src/bMail/include
 /usr/include/g++-2
 /usr/include
 /usr/i686-pc-linux-gnu/include
 /usr/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.92.31/include
 /usr/include
End of search list.
 /usr/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.92.31/cc1plus ipcbase.ii -quiet -dumpbase ipcbase.cc -g -O6 -Wall -version -fPIC -o ipcbase.s
GNU C++ version egcs-2.92.31 19981220 (gcc2 ss-980609 experimental) (i686-pc-linux-gnu) compiled by GNU C version egcs-2.92.29 19981219 (gcc2 ss-980609 experimental).

The output of running cc1plus without -quiet can also be fetched at:

http://www.sandy.force9.co.uk/~chrisb/cc1plus.out.gz

Sorry I can't be more specific, but I have no idea what is causing
this problem.

--
Chris Butler
<chrisb@sandy.force9.co.uk>