Re: 2.4.27+stdarg+gcc-3.4.1

Re: 2.4.27+stdarg+gcc-3.4.1

[Mikael Pettersson]

On Sat, 24 Jul 2004 02:14:21 +0200, J.A. Magallon wrote:
>With gcc-3.4.1 I get the following error when building 2.4.27-rc3.
>Any suggestion ?
>
>gcc -D__KERNEL__ -nostdinc -iwithprefix include -I/usr/src/linux-2.4.27-rc3=
>-jam1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-alia=
>sing -fno-common -fomit-frame-pointer -mpreferred-stack-boundary=3D2 -msoft=
>-float -march=3Dpentium3 -fno-unit-at-a-time   -DKBUILD_BASENAME=3Ddo_mount=
>s -c -o init/do_mounts.o init/do_mounts.c
>init/do_mounts.c: In function `change_floppy':
>init/do_mounts.c:424: error: `va_list' undeclared (first use in this functi=
>on)
>init/do_mounts.c:424: error: (Each undeclared identifier is reported only o=
>nce
>init/do_mounts.c:424: error: for each function it appears in.)
>init/do_mounts.c:424: error: syntax error before "args"
>init/do_mounts.c:425: warning: implicit declaration of function `va_start'
>init/do_mounts.c:425: error: `args' undeclared (first use in this function)
>init/do_mounts.c:426: warning: implicit declaration of function `vsprintf'
>init/do_mounts.c:427: warning: implicit declaration of function `va_end'
>make: *** [init/do_mounts.o] Error 1

gcc picks stdarg.h from its own private install directory,
which you specified with --prefix=$prefix at configure-time.
$prefix/lib/gcc/i686-pc-linux-gnu/3.4.1/include/stdarg.h in my case.

I suspect you either mis-configured your gcc-3.4.1, or somehow
broke the installation.

/Mikael

Re: 2.4.27+stdarg+gcc-3.4.1

[Richard B. Johnson]

On Sat, 24 Jul 2004, Mikael Pettersson wrote:

> On Sat, 24 Jul 2004 02:14:21 +0200, J.A. Magallon wrote:
> >With gcc-3.4.1 I get the following error when building 2.4.27-rc3.
> >Any suggestion ?
> >
> >gcc -D__KERNEL__ -nostdinc -iwithprefix include -I/usr/src/linux-2.4.27-rc3=
> >-jam1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-alia=
> >sing -fno-common -fomit-frame-pointer -mpreferred-stack-boundary=3D2 -msoft=
> >-float -march=3Dpentium3 -fno-unit-at-a-time   -DKBUILD_BASENAME=3Ddo_mount=
> >s -c -o init/do_mounts.o init/do_mounts.c
> >init/do_mounts.c: In function `change_floppy':
> >init/do_mounts.c:424: error: `va_list' undeclared (first use in this functi=
> >on)
> >init/do_mounts.c:424: error: (Each undeclared identifier is reported only o=
> >nce
> >init/do_mounts.c:424: error: for each function it appears in.)
> >init/do_mounts.c:424: error: syntax error before "args"
> >init/do_mounts.c:425: warning: implicit declaration of function `va_start'
> >init/do_mounts.c:425: error: `args' undeclared (first use in this function)
> >init/do_mounts.c:426: warning: implicit declaration of function `vsprintf'
> >init/do_mounts.c:427: warning: implicit declaration of function `va_end'
> >make: *** [init/do_mounts.o] Error 1
>
> gcc picks stdarg.h from its own private install directory,
> which you specified with --prefix=$prefix at configure-time.
> $prefix/lib/gcc/i686-pc-linux-gnu/3.4.1/include/stdarg.h in my case.
>
> I suspect you either mis-configured your gcc-3.4.1, or somehow
> broke the installation.
>
> /Mikael

> >gcc -D__KERNEL__ -nostdinc -iwithprefix include
                     ^^^^^^^_______

This will prevent it from using its private copy of stdarg.h.

There needs to be one in the -I<include-path>

Cheers,
Dick Johnson
Penguin : Linux version 2.4.26 on an i686 machine (5570.56 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: 2.4.27+stdarg+gcc-3.4.1

[Keith Owens]

On Sat, 24 Jul 2004 09:19:04 -0400 (EDT), 
"Richard B. Johnson" <root@chaos.analogic.com> wrote:
>> >gcc -D__KERNEL__ -nostdinc -iwithprefix include
>                     ^^^^^^^_______
>
>This will prevent it from using its private copy of stdarg.h.
>
>There needs to be one in the -I<include-path>

No.  -iwithprefix include picks up the private path.  It is probably a
misconfigured gcc, but I am waiting on detailed diagnostics to be sure.

Re: 2.4.27+stdarg+gcc-3.4.1

[Richard B. Johnson]

On Sun, 25 Jul 2004, Keith Owens wrote:

> On Sat, 24 Jul 2004 09:19:04 -0400 (EDT),
> "Richard B. Johnson" <root@chaos.analogic.com> wrote:
> >> >gcc -D__KERNEL__ -nostdinc -iwithprefix include
> >                     ^^^^^^^_______
> >
> >This will prevent it from using its private copy of stdarg.h.
> >
> >There needs to be one in the -I<include-path>
>
> No.  -iwithprefix include picks up the private path.  It is probably a
> misconfigured gcc, but I am waiting on detailed diagnostics to be sure.
>

Well you just might know everything, but with some versions of
gcc, I have found it necessary to use -I`gcc --print-file-name=include`
on the command line. On this system it is:

Script started on Sat Jul 24 19:58:12 2004
# gcc --print-file-name=include
/usr/local/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.66/include
# exit
Script done on Sat Jul 24 19:58:35 2004

And it isn't a mis-configured gcc although some versions of gcc
don't always do what you are expecting.


Cheers,
Dick Johnson
Penguin : Linux version 2.4.26 on an i686 machine (5570.56 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: 2.4.27+stdarg+gcc-3.4.1

[Alexandre Oliva]

On Jul 24, 2004, "Richard B. Johnson" <root@chaos.analogic.com> wrote:

> I have found it necessary to use -I`gcc --print-file-name=include`

Never ever do that.  Use -isystem instead of -I, if you have to, but
having system headers handled as non-system headers may get you in
trouble.

-- 
Alexandre Oliva             http://www.ic.unicamp.br/~oliva/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}

Re: 2.4.27+stdarg+gcc-3.4.1

[J.A. Magallon]

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On 2004.07.24, Keith Owens wrote:
> On Sat, 24 Jul 2004 09:19:04 -0400 (EDT), 
> "Richard B. Johnson" <root@chaos.analogic.com> wrote:
> >> >gcc -D__KERNEL__ -nostdinc -iwithprefix include
> >                     ^^^^^^^_______
> >
> >This will prevent it from using its private copy of stdarg.h.
> >
> >There needs to be one in the -I<include-path>
> 
> No.  -iwithprefix include picks up the private path.  It is probably a
> misconfigured gcc, but I am waiting on detailed diagnostics to be sure.
> 

Sorry, I won't have time to do more dignostics until wednesday.
I'll be back then...

Just one note. 2.6 builds fine with this gcc...

werewolf:~# gcc -v
Reading specs from /usr/lib/gcc/i586-mandrake-linux-gnu/3.4.1/specs
Configured with: ../configure --prefix=/usr --libdir=/usr/lib --with-slibdir=/li
b --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-thr
eads=posix --disable-checking --enable-long-long --enable-__cxa_atexit --enable-
clocale=gnu --disable-libunwind-exceptions --enable-languages=c,c++,ada,f77,objc
,java --host=i586-mandrake-linux-gnu --with-system-zlib
Thread model: posix
gcc version 3.4.1 (Mandrakelinux (Alpha 3.4.1-2mdk)


--
J.A. Magallon <jamagallon()able!es>     \               Software is like sex:
werewolf!able!es                         \         It's better when it's free
Mandrakelinux release 10.1 (Alpha 1) for i586
Linux 2.6.8-rc1-jam2 (gcc 3.4.1 (Mandrakelinux (Alpha 3.4.1-2mdk)) #1

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Re: 2.4.27+stdarg+gcc-3.4.1

[Keith Owens]

On Sun, 25 Jul 2004 01:27:55 +0300, 
Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua> wrote:
>On Saturday 24 July 2004 17:59, Keith Owens wrote:
>> On Sat, 24 Jul 2004 09:19:04 -0400 (EDT),
>>
>> "Richard B. Johnson" <root@chaos.analogic.com> wrote:
>> >> >gcc -D__KERNEL__ -nostdinc -iwithprefix include
>> >
>> >                     ^^^^^^^_______
>> >
>> >This will prevent it from using its private copy of stdarg.h.
>> >
>> >There needs to be one in the -I<include-path>
>>
>> No.  -iwithprefix include picks up the private path.  It is probably a
>> misconfigured gcc, but I am waiting on detailed diagnostics to be sure.
>
>I have such 'misconfigured' gcc for a very long time.
>I compiled a lot of stuff with it.
>
>Nothing complains except the kernel.

Only the kernel adds '-nostdinc -withprefix include'.
 
>GCC_EXEC_PREFIX=/usr/app/gcc-3.3.3/lib/gcc-lib/
>
>fixes it for me.

Which makes it a local gcc build problem.  I run 3.3.3 and it handles
-nostdinc -iwithprefix include correctly.  Compile init/do_mounts.c
with gcc -v to get the list of include paths for your version of gcc,
stdarg.h will not be on those paths.  Rebuild your version of gcc with
the correct paths.

2.4.27+stdarg+gcc-3.4.1

[J.A. Magallon]

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Hi,

With gcc-3.4.1 I get the following error when building 2.4.27-rc3.
Any suggestion ?

gcc -D__KERNEL__ -nostdinc -iwithprefix include -I/usr/src/linux-2.4.27-rc3-jam1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -mpreferred-stack-boundary=2 -msoft-float -march=pentium3 -fno-unit-at-a-time   -DKBUILD_BASENAME=do_mounts -c -o init/do_mounts.o init/do_mounts.c
init/do_mounts.c: In function `change_floppy':
init/do_mounts.c:424: error: `va_list' undeclared (first use in this function)
init/do_mounts.c:424: error: (Each undeclared identifier is reported only once
init/do_mounts.c:424: error: for each function it appears in.)
init/do_mounts.c:424: error: syntax error before "args"
init/do_mounts.c:425: warning: implicit declaration of function `va_start'
init/do_mounts.c:425: error: `args' undeclared (first use in this function)
init/do_mounts.c:426: warning: implicit declaration of function `vsprintf'
init/do_mounts.c:427: warning: implicit declaration of function `va_end'
make: *** [init/do_mounts.o] Error 1


As a side note:

./include/acpi/platform/aclinux.h:

#define ACPI_USE_SYSTEM_CLIBRARY

?? 


--
J.A. Magallon <jamagallon()able!es>     \               Software is like sex:
werewolf!able!es                         \         It's better when it's free
Mandrakelinux release 10.1 (Alpha 1) for i586
Linux 2.6.8-rc1-jam1 (gcc 3.4.1 (Mandrakelinux (Cooker) 3.4.1-1mdk)) #1

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Re: 2.4.27+stdarg+gcc-3.4.1

[Keith Owens]

On Sat, 24 Jul 2004 02:14:21 +0200, 
"J.A. Magallon" <jamagallon@able.es> wrote:
>With gcc-3.4.1 I get the following error when building 2.4.27-rc3.
>Any suggestion ?
>
>gcc -D__KERNEL__ -nostdinc -iwithprefix include -I/usr/src/linux-2.4.27-rc3-jam1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -mpreferred-stack-boundary=2 -msoft-float -march=pentium3 -fno-unit-at-a-time   -DKBUILD_BASENAME=do_mounts -c -o init/do_mounts.o init/do_mounts.c
>init/do_mounts.c: In function `change_floppy':
>init/do_mounts.c:424: error: `va_list' undeclared (first use in this function)

Looks like you applied some additional patches over 2.4.27-rc3, that
command line is non-standard.  Run

gcc -D__KERNEL__ -nostdinc -iwithprefix include \
    -I/usr/src/linux-2.4.27-rc3-jam1/include -Wall \
    -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common \
    -fomit-frame-pointer -mpreferred-stack-boundary=2 -msoft-float \
    -march=pentium3 -fno-unit-at-a-time   -DKBUILD_BASENAME=do_mounts -c \
    -o init/do_mounts.s init/do_mounts.c -E

Mail the results from

egrep -B20 -A5 'va_list|stdarg\.h' init/do_mounts.i