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RE: Build problem on OpenBSD MIPS
- From: "Pierre Muller" <pierre dot muller at ics-cnrs dot unistra dot fr>
- To: "'John Long'" <codeblue at inbox dot lv>
- Cc: <insight at sourceware dot org>
- Date: Thu, 4 Jul 2013 18:27:45 +0200
- Subject: RE: Build problem on OpenBSD MIPS
- References: <20130704145949 dot GA9402 at inbox dot lv> <000001ce78ca$4da37d10$e8ea7730$ at muller@ics-cnrs.unistra.fr> <20130704153924 dot GB9402 at inbox dot lv>
Hi John,
it indeed seems to be that your build
doesn't use YACC debugging and that this could be the reason of the
unused function that generates the error.
You could:
1) delete c-exp.c in the build directory
and check how this file is regenerated by the make script.
a simple
rm c-exp.y
make c-exp.y should be enough for this.
2) Test recompiling the new c-exp.c file
make c-exp.o
should be enough.
If you do get again the same error, you can
bypass it simply by disabling the "consider a warning as an error" option
which is the -Werror option of GNU C compiler.
3)
To do this, simply run
make c-exp.o WERROR_CFLAGS=""
4) After that, a normal
make gdb insight
should work.
If point 2) still fails,
it would be worthwhile to state that problem to gdb@sourceware.org
specifying how c-exp.c was regenerated at point 1
(and the version of the executable used, which might well
be of importance here).
Hopefully you will be able to complete insight compilation...
Pierre Muller
> -----Message d'origine-----
> De : insight-owner@sourceware.org [mailto:insight-owner@sourceware.org] De
> la part de John Long
> Envoyé : jeudi 4 juillet 2013 17:39
> À : Pierre Muller
> Cc : insight@sourceware.org
> Objet : Re: Build problem on OpenBSD MIPS
>
> On Thu, Jul 04, 2013 at 05:22:30PM +0200, Pierre Muller wrote:
> > Maybe it is a problem with the tool that is used
> > to generate the c-exp.c from the c-exp.y source.
> >
> > I have the impression that OpenBSD often tends to still use old GNU
> tools...
> >
> > On my successful build,
> > c_print_token is used in YYPRINT macro:
> >
> > $ grep YYPRINT c-*.c -n -A 5
> > 398:#define YYPRINT(FILE, TYPE, VALUE) c_print_token (FILE, TYPE, VALUE)
> > 399-
> > 400-/* Line 390 of yacc.c */
> > 401-#line 402 "c-exp.c"
> > 402-
> > 403-#ifdef short
> > --
> > 867:# ifdef YYPRINT
> > 868-/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
> > 869- token YYLEX-NUM. */
> > 870-static const yytype_uint16 yytoknum[] =
> > 871-{
> > 872- 0, 256, 257, 258, 259, 260, 261, 262, 263,
> 264,
> > --
> > 1589:# ifdef YYPRINT
> > 1590- if (yytype < YYNTOKENS)
> > 1591: YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
> > 1592-# else
> > 1593- YYUSE (yyoutput);
> > 1594-# endif
> > 1595- switch (yytype)
> > 1596- {
> > --
> > 5989:/* This is called via the YYPRINT macro when parser debugging is
> > 5990- enabled. It prints a token's value. */
> > 5991-
> > 5992-static void
> > 5993-c_print_token (FILE *file, int type, YYSTYPE value)
> > 5994-{
> >
> > $ head c-exp.c
> > /* A Bison parser, made by GNU Bison 2.7. */
> >
> > /* Bison implementation for Yacc-like parsers in C
> >
> > Could you check if YYPRINT is used in your c-exp.c file,
> > and which tool was used to create it (it will probably be mentioned
> > in the header like here).
> >
> >
> > Pierre Muller
> >
>
> Hi, I have no idea what I am doing so I just tried your commands as is.
Here
> is the output:
>
> grep YYPRINT c-*.c -n -A 5
> 146:#define YYPRINT(FILE, TYPE, VALUE) c_print_token (FILE, TYPE, VALUE)
> 147-#line 148 "c-exp.c"
> 148-#define INT 257
> 149-#define FLOAT 258
> 150-#define DECFLOAT 259
> 151-#define STRING 260
> 4233:/* This is called via the YYPRINT macro when parser debugging is
> 4234- enabled. It prints a token's value. */
> 4235-
> 4236-static void
> 4237-c_print_token (FILE *file, int type, YYSTYPE value)
> 4238-{
> user:/tmp/insight-cvs/insight/gdb$
>
> head c-exp.c
> #include <stdlib.h>
> #include <string.h>
> #define YYBYACC 1
> #define YYMAJOR 1
> #define YYMINOR 9
> #define YYLEX yylex()
> #define YYEMPTY -1
> #define yyclearin (yychar=(YYEMPTY))
> #define yyerrok (yyerrflag=0)
> #define YYRECOVERING() (yyerrflag!=0)
> user:/tmp/insight-cvs/insight/gdb$
>
> I don't see that YYPRINT is used anywhere else in c-exp.c
>
> Does the following suggest this isn't going to be used in a normal build?
>
> /* This is called via the YYPRINT macro when parser debugging is
> enabled. It prints a token's value. */
>
> static void
> c_print_token (FILE *file, int type, YYSTYPE value)
> {
> switch (type)
> {
> case INT:
> fprintf (file, "typed_val_int<%s, %s>",
> TYPE_SAFE_NAME (value.typed_val_int.type),
>
> Thanks,
>
> /jl