[Buildroot] [PATCH 1/1] Add support for x32 ABI for x86-64 target.

[sergey kostanbaev]

Hi Waldemar,

Thank you for pointing it
27 Авг 2015 г. 21:20 пользователь "Waldemar Brodkorb" <wbx at openadk.org>
написал:

> Hi Sergey,
> sergey kostanbaev wrote,
>
> > Hi Guido,
> >
> > I tried your patch against buildroot-2015.05 and it fails during
> compilation of
> > glibc-2.21:
> >
> > /home/serg/projects/buildroot-2015.05/output/host/usr/bin/
> > x86_64-umsiteroot-linux-gnux32-gcc mktime.c -c -std=gnu99 -fgnu89-inline
>  -O2
> > -Wall -Werror -Winline -Wno-error=undef -Wundef -Wwrite-strings
> > -fmerge-all-constants -frounding-math -Wstrict-prototypes   -fPIC
>  -I../
> > include
> -I/home/serg/projects/buildroot-2015.05/output/build/glibc-2.21/build/
> > time
>  -I/home/serg/projects/buildroot-2015.05/output/build/glibc-2.21/build
> >  -I../sysdeps/unix/sysv/linux/x86_64/x32  -I../sysdeps/x86_64/x32/nptl
>  -I../
> > sysdeps/unix/sysv/linux/x86_64  -I../sysdeps/unix/sysv/linux/x86
>  -I../sysdeps/
> > unix/sysv/linux/wordsize-64  -I../sysdeps/x86_64/nptl
>  -I../sysdeps/unix/sysv/
> > linux/include -I../sysdeps/unix/sysv/linux  -I../sysdeps/nptl
>  -I../sysdeps/
> > pthread  -I../sysdeps/gnu  -I../sysdeps/unix/inet
>  -I../sysdeps/unix/sysv  -I..
> > /sysdeps/unix/x86_64  -I../sysdeps/unix  -I../sysdeps/posix
>  -I../sysdeps/
> > x86_64/x32  -I../sysdeps/x86_64/fpu/multiarch  -I../sysdeps/x86_64/fpu
>  -I../
> > sysdeps/x86/fpu/include -I../sysdeps/x86/fpu
>  -I../sysdeps/x86_64/multiarch
> >  -I../sysdeps/x86_64  -I../sysdeps/x86  -I../sysdeps/ieee754/ldbl-96
>  -I../
> > sysdeps/ieee754/dbl-64/wordsize-64  -I../sysdeps/ieee754/dbl-64
>  -I../sysdeps/
> > ieee754/flt-32  -I../sysdeps/wordsize-32  -I../sysdeps/ieee754
>  -I../sysdeps/
> > generic  -I.. -I../libio -I. -nostdinc -isystem /home/serg/projects/
> >
> buildroot-2015.05/output/host/usr/lib/gcc/x86_64-umsiteroot-linux-gnux32/4.9.2/
> > include -isystem
> /home/serg/projects/buildroot-2015.05/output/host/usr/lib/gcc/
> > x86_64-umsiteroot-linux-gnux32/4.9.2/include-fixed -isystem
> /home/serg/projects
> >
> /buildroot-2015.05/output/host/usr/x86_64-umsiteroot-linux-gnux32/sysroot/usr/
> > include  -D_LIBC_REENTRANT -include
> /home/serg/projects/buildroot-2015.05/
> > output/build/glibc-2.21/build/libc-modules.h -DMODULE_NAME=libc -include
> ../
> > include/libc-symbols.h  -DPIC -DSHARED     -o /home/serg/projects/
> > buildroot-2015.05/output/build/glibc-2.21/build/time/mktime.os -MD -MP
> -MF /
> > home/serg/projects/buildroot-2015.05/output/build/glibc-2.21/build/time/
> > mktime.os.dt -MT
> /home/serg/projects/buildroot-2015.05/output/build/glibc-2.21/
> > build/time/mktime.os
> > (echo '#include <dl-vdso.h>'; \
> >          echo 'extern void *time_ifunc (void) __asm ("time");'; \
> >          echo 'void *'; \
> >          echo 'time_ifunc (void)'; \
> >          echo '{'; \
> >          echo '  PREPARE_VERSION_KNOWN (symver, LINUX_2_6);'; \
> >          echo '  return _dl_vdso_vsym ("__vdso_time", &symver);'; \
> >          echo '}'; \
> >          echo 'asm (".type time, %gnu_indirect_function");'; \
> >          echo 'asm (".globl __GI_time
> > /bin/sh: 10: Syntax error: Unterminated quoted string
> > make[3]: ***
> [/home/serg/projects/buildroot-2015.05/output/build/glibc-2.21/
> > build/time/time.os] Error 2
>
> If I remember correctly this is a shell portability issue, which
> only occurs with x86_64 x32, when not using bash as your shell.
> (f.e. Ubuntu uses dash as /bin/sh)
>
> The bug is fixed in 2.22.
> https://sourceware.org/bugzilla/show_bug.cgi?id=16704
>
> best regards
>  Waldemar
>
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