Path: utzoo!telly!ddsw1!lll-winken!killer!mit-eddie!bloom-beacon!tut.cis.ohio-state.edu!VUSE.VANDERBILT.EDU!gabork
From: gabork@VUSE.VANDERBILT.EDU (Gabor Karsai)
Newsgroups: gnu.g++.bug
Subject: (none)
Message-ID: <8812201732.AA14810@vuse4>
Date: 20 Dec 88 17:32:40 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
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Some problems I have encountered using gcc/g++ (1.27) (for HP-UX, w/ HP ld):

1.) In search.c I am using the following:

void build_mi_matrix (type)
tree type;
{
  register int truesize;

  cid = 0;
  mi_size = CLASSTYPE_N_SUPERCLASSES (type);
  truesize = mi_size == 0 ? 1 : mi_size * mi_size;
  mi_matrix = (char *)malloc (truesize);
  mi_type = type;
  bzero (mi_matrix, truesize);
  dfs_walk (type, dfs_number, unnumberedp);
  dfs_walk (type, dfs_record_inheritance, unmarkedp);
  dfs_walk (type, dfs_unmark, markedp);
}

Explanation: On HP-UX malloc(0) returns 0, and a subsequent free will 
barf on this.

2.) "collect" does not collect "cout", "cin", "cerr" for the CTOR list
because they were declared extern, but instantiated only in libg++.a.
Solution: remove the instance declaration from search.cc (of libg++),
and make an include file (e.g. stream.cc.h) which instantiates them. If a user
wants to use them just include that file.

3.) In tm-hp9k320.h:

  if (frame_pointer_needed)					\
    { if (TARGET_68020 || fsize < 0x8000)			\
        fprintf (FILE, "\tlink.w %%a6,&%d\n", -fsize);		\
      else
	fprintf (FILE, "\tlink.w %%a6,&0\n\tsub.l &%d,%%sp\n", fsize); }  \

  I.e. large than 64k local (auto) var segments get screwed up.

4.) Would it be possible to include alloca.s in the gcc distribution?

Thanks,

Gabor Karsai 			| I'net:
Dept. of Electrical Engineering	| gabork@vuse.vanderbilt.edu
Vanderbilt University 		| 
Post Office Box 1824, Station B |Phone:
Nashville, TN, USA  37235       | [+1] 615-322-2338