Re: ../../gcc/fixproto[275]: 25412 Memory fault(coredump)

["John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>]

> The following build error occurs with todays cvs 3.0 branch source building
> under hpux 10.20:
> 
> if [ -f include/fixed ] ; then true; \
> else \
>   : This line works around a 'make' bug in BSDI 1.1.; \
>   FIXPROTO_DEFINES="-D_HPUX_SOURCE -D_HIUX_SOURCE"; export FIXPROTO_DEFINES; \
>   mkinstalldirs="/bin/sh ../../gcc/mkinstalldirs"; \
>     export mkinstalldirs; \
>   if [ -d /usr/include ] ; then \
>     /bin/sh ../../gcc/fixproto include include /usr/include; \
>     if [ $? -eq 0 ] ; then true ; else exit 1 ; fi ; \
>   else true; fi; \
>   touch include/fixed; \
> fi
> fixproto: populating `include'
> Internal error:  No prototype for box
> Internal error:  No prototype for waddch
> Internal error:  No prototype for winsch
> ../../gcc/fixproto[275]: 25412 Memory fault(coredump)

Following up, the segfault occurs in a call to memcpy in cppfiles.c:

  /* Search directory path for the file.  */
  name = (char *) alloca (strlen (fname) + pfile->max_include_len
			    + 2 + INCLUDE_LEN_FUDGE);
  for (path = search_start; path; path = path->next)
    {
      memcpy (name, path->name, path->len);

It appears that this is fallout from Zack's alloca patch (ie.,
__builtin_alloca in the version of gcc used for the initial
bootstrap doesn't work on the PA).  I tried defining USE_C_ALLOCA
to force the use of C_alloca.  However, now I have a malloc problem:

fixproto: populating `include'
Internal error:  No prototype for box
Internal error:  No prototype for waddch
Internal error:  No prototype for winsch

Cannot allocate 989908761 bytes after allocating 98280 bytes

:-(
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)