Re: Armv7 buildworld puzzle (jaillex.c:850:1: error: declaration shadows a variable in the global scope [-Werror,-Wshadow])

On Fri, Jan 24, 2025 at 10:24:07AM +0100, Ronald Klop wrote:
> Hi Bob,
> 
> I guess a make clean or rm -rf /usr/obj/* might help.
> 
> NB: I can't imagine the error does not say 'which variable' is shadowed. It helps the readers of your mail to copy-paste a little more context.
>
 
Running a simple "make clean" in /usr/src seems to have changed the message.

Here's a more complete excerpt of the latest failure:
....
Building /usr/obj/usr/src/arm.armv7/usr.sbin/jail/jaillex.c
Building /usr/obj/usr/src/arm.armv7/usr.sbin/jail/jaillex.o
/usr/src/usr.sbin/jail/jaillex.l:106:6: error: comparison of integers of different signs: 'int' and 'yy_size_t' (aka 'unsigned int') [-Werror,-Wsign-compare]
  106 |                                         yyless(atvar);
      |                                         ^~~~~~~~~~~~~
jaillex.c:215:9: note: expanded from macro 'yyless'
  215 |         YY_LESS_LINENO(yyless_macro_arg);\
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jaillex.c:204:36: note: expanded from macro 'YY_LESS_LINENO'
  204 |                 for ( yyl = n; yyl < yyleng; ++yyl )\
      |                                ~~~ ^ ~~~~~~
/usr/src/usr.sbin/jail/jaillex.l:146:5: error: comparison of integers of different signs: 'int' and 'yy_size_t' (aka 'unsigned int') [-Werror,-Wsign-compare]
  146 |                                 yyless(0);
      |                                 ^~~~~~~~~
jaillex.c:215:9: note: expanded from macro 'yyless'
  215 |         YY_LESS_LINENO(yyless_macro_arg);\
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jaillex.c:204:36: note: expanded from macro 'YY_LESS_LINENO'
  204 |                 for ( yyl = n; yyl < yyleng; ++yyl )\
      |                                ~~~ ^ ~~~~~~
jaillex.c:1906:58: error: unused parameter 'yyscanner' [-Werror,-Wunused-parameter]
 1906 | static void yy_fatal_error (yyconst char* msg , yyscan_t yyscanner)
      |                                                          ^
jaillex.c:2226:43: error: unused parameter 'yyscanner' [-Werror,-Wunused-parameter]
 2226 | void *yyalloc (yy_size_t  size , yyscan_t yyscanner)
      |                                           ^
jaillex.c:2231:58: error: unused parameter 'yyscanner' [-Werror,-Wunused-parameter]
 2231 | void *yyrealloc  (void * ptr, yy_size_t  size , yyscan_t yyscanner)
      |                                                          ^
jaillex.c:2243:36: error: unused parameter 'yyscanner' [-Werror,-Wunused-parameter]
 2243 | void yyfree (void * ptr , yyscan_t yyscanner)
      |                                    ^
6 errors generated.
*** [jaillex.o] Error code 1

make[4]: stopped in /usr/src/usr.sbin/jail


> 
> Van: "Herbert J. Skuhra" <[email protected]>
> Datum: vrijdag, 24 januari 2025 08:04
> Aan: [email protected]
> Onderwerp: Re: Armv7 buildworld puzzle
> > 
> > On Thu, Jan 23, 2025 at 05:14:25PM -0800, bob prohaska wrote:
> > > An attempt to build world on armv7 (PI2 v1.1) keeps getting stuck with:
> > > jaillex.c:850:1: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
> > >
> > > Repeat git pulls find no updates related to jailex.c and find does not discover
> > > any file in /usr/src by that name.
> > >
> > > Git status reports
> > >
> > > On branch stable/14
> > > Your branch is up to date with 'freebsd/stable/14'.
> > >
> > > Untracked files:
> > >   (use "git add <file>..." to include in what will be committed)
> > >         buildscript
> > >         buildworld.log
> > >         installscript
> > >
> > > I'm mystified, first at the build stoppage and second by the file being
> > > named and quoted but not find-able.
> > >
> > > The system isn't valuable, but if there's an easy fix or workaround
> > > I'd like to try it. The system started life as 12.4. Sources were
> > > replaced with stable/14, a new kernel was built and runs seemingly
> > > ok. To have buildworld fail past the "building everything" mark with
> > > a complaint quoting a file that's not visible is quite baffling.
> > 
> > There are
> > 
> > /usr/src/usr.sbin/jail/jaillex.l
> > and
> > /usr/obj/usr/src/arm64.aarch64/usr.sbin/jail/jaillex.c
> > 
> > The latter is autogenerated during the build.

I did find  /usr/src/usr.sbin/jail/jaillex.l, but note that you're 
citing arm64 while this is on armv7. Guessing both have the same jailex.* ? 

Thanks for writing,

bob prohaska