Re: [Ltib] gdb-6.6 build problems

[Vadim Lebedev]

The asprintf comes  from:
/opt/freescale/usr/local/gcc-4.1.2-glibc-2.5-nptl-3/arm-none-linux-gnueabi/arm-none-linux-gnueabi/sysroot/usr/includ
e/stdio.h

btw when i follow your instructions it works without error
i even tried to copy the whole offending command starting with /bin/sh ...

it works ok too...

It fails however when i do ./ltib -p gdb-6.6.spec


Another observation:  when i do it form ./ltib -m shell
it does not display the warning:
cc1: warnings being treated as errors

Which brings me to following:
When we do it manually it compiles using cross-compiler
but WE are building CROSS DEBUGGER  which should be compiled with native host compiler, which is gcc (Ubuntu 4.3.2-1ubuntu11) 4.3.2  on my system.

So i simply tried the gcc command outside ltib environment and got the error:

the .i file conatined following:

extern int asprintf (char **__restrict __ptr,
       __const char *__restrict __fmt, ...)
     __attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 2, 3))) __attribute__ ((__warn_unused_result__));


which came from my /usr/include/stdio.h


So this explain the problem,  the question how to resolve it?

Thanks
Vadim






Stuart Hughes wrote:

Hi Vadim,

I took this off-list with Ned due to the attachments, but attachments
aside I've in-lined the email below.

Curiously -Werror has always been there, so it looks as though some host
related component is leaking in from the updated Ubuntu? whether there's
a difference in the configure results triggering this, or something else
I don't know.

Maybe you could try the steps and let me know what you see?

Regards, Stuart

------------------------------------------------
Hi Ned,

I've taken this off the list until we resolve it as the attachments are
a bit big.

This has got me a bit stumped.  I just build the default configuration
for the imx27ads using the current sources at Savannah CVS.  I don't get
any build errors.

Looking at the log, the build command for that file is the same, so
I'm guessing that somehow you're pulling in a different header file from
me.  Did you change anything from the default?

Anyhow, can you try this:

$ ./ltib -m shell
LTIB> cd rpm/BUILD/gdb-6.6/cross-gdb/bfd
LTIB> gcc -DHAVE_CONFIG_H -I. -I../../bfd -I. -I. -I../../bfd
-I../../bfd/../include -W -Wall -Wstrict-prototypes -Wmissing-prototypes
-Werror -g -O2 -c ../../bfd/elf32-arm.c -o elf32-arm.o -save-temps
LTIB>

If you look at elf32-arm.i, search for asprintf and then go back and
find where it gets included from.  Mine is
from /opt/freescale/usr/local/gcc-4.1.2-glibc-2.5-nptl-3/arm-none-linux-gnueabi/arm-none-linux-gnueabi/sysroot/usr/include/stdio.h

I've attached my preprocessor file elf32-arm.i

Note to exit the ltib shell, type 'exit'
---------------------------------------------

On Thu, 2008-11-20 at 16:40 +0100, Vadim Lebedev wrote:
  

I have the same problem,

BTW i've started to see it since i've installed ubuntu 8.10  on 7.10
whic i had previously there was no problem.

I suspect that this happens because -Werror  compile flag

Thanks
Vadim

Ned Konz wrote: 
    

I'm building for a mx27 board, and have had gdbserver compiled OK
before. 

However, after a clean and a recompile, it's quit compiling. 

What I'm getting is this (using the default gdb-6.6.spec) 

gcc -DHAVE_CONFIG_H -I. -I../../bfd -I. -I. -I../../bfd
-I../../bfd/../include -W -Wall -Wstrict-prototypes
-Wmissing-prototypes -Werror -g -O2 -c ../../bfd/archive64.c -o
archive64.o 
rm -f elf32-target.h 
sed -e s/NN/32/g < ../../bfd/elfxx-target.h > elf32-target.new 
mv -f elf32-target.new elf32-target.h 
/bin/sh ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I../../bfd
-I. -I. -I../../bfd -I../../bfd/../include     -W -Wall
-Wstrict-prototypes -Wmissing-prototypes -Werror -g -O2 -c -o
elf32-arm.lo ../../bfd/elf32-arm.c 
gcc -DHAVE_CONFIG_H -I. -I../../bfd -I. -I. -I../../bfd
-I../../bfd/../include -W -Wall -Wstrict-prototypes
-Wmissing-prototypes -Werror -g -O2 -c ../../bfd/elf32-arm.c -o
elf32-arm.o 
cc1: warnings being treated as errors 
../../bfd/elf32-arm.c: In function 'find_thumb_glue': 
../../bfd/elf32-arm.c:2452: error: ignoring return value of
'asprintf', declared with attribute warn_unused_result 
../../bfd/elf32-arm.c: In function 'find_arm_glue': 
../../bfd/elf32-arm.c:2485: error: ignoring return value of
'asprintf', declared with attribute warn_unused_result 
make[4]: *** [elf32-arm.lo] Error 1 
make[4]: Leaving directory
`/home/ned/src/ltib/rpm/BUILD/gdb-6.6/cross-gdb/bfd' 
make[3]: *** [all-recursive] Error 1 
make[3]: Leaving directory
`/home/ned/src/ltib/rpm/BUILD/gdb-6.6/cross-gdb/bfd' 
make[2]: *** [all] Error 2 
make[2]: Leaving directory
`/home/ned/src/ltib/rpm/BUILD/gdb-6.6/cross-gdb/bfd' 
make[1]: *** [all-bfd] Error 2 
make[1]: Leaving directory
`/home/ned/src/ltib/rpm/BUILD/gdb-6.6/cross-gdb' 
make: *** [all] Error 2 
error: Bad exit status from /home/ned/src/ltib/tmp/rpm-tmp.56610 (%
build) 


I've attached the log file. 

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