Re: [Tinycc-devel] test failure on Linux

[Ramsay Jones]

Thomas Preud'homme wrote:
> Le mercredi 13 février 2013 19:08:37, Thomas Preud'homme a écrit :
>> Le mercredi 13 février 2013 17:16:28, Thomas Preud'homme a écrit :
>>> On Wed, 13 Feb 2013 08:30:14 -0700, address@hidden wrote:
>>>> "Thomas Preud'homme" <address@hidden> wrote:
>>>>> Why not but strike multiarch from that as I don't see how we could
>>>>> detect it by compiling a C program.
>>>>
>>>> Use the output of ldd to tell you where the C library is.
>>>
>>> Yep true, I thought about it last night and forgot about it in the
>>> morning. However I just pushed a commit using checking where is crti.o
>>> before reading your mail. It's a one line test so I think the solution
>>> is not too bad but you can prove me wrong of course.
>>
>> Thanks a lot for the suggestion. Thinking about it a bit I managed to come
>> up with a much better patch. It's not totally done though but I have to
>> leave. I'll push it tonight. Stay tuned.
> 
> Pushed. And the diffstat from the original situation (before my 2 commits to 
> reorganize) is also better. See for yourself:
> 

OK, despite what I said, I fetched commit e298f608 ("Create config-print
program to test $cc", 13-02-2013) last night in order to test it.
[Sorry for not reporting the results last night, but I desperately
needed to get some sleep!]

Unfortunately, the news is not good! :( Using ldd has broken the build
again and my x86 is apparently a bigendian machine! :-P

viz:

    $ git log --oneline -1
    e298f60 Create config-print program to test $cc
    $ 

    $ make distclean >/dev/null
    $ ./configure
    Binary  directory   /usr/local/bin
    TinyCC directory    /usr/local/lib/tcc
    Library directory   /usr/local/lib
    Include directory   /usr/local/include
    Manual directory    /usr/local/share/man
    Info directory      /usr/local/share/info
    Doc directory       /usr/local/share/doc/tcc
    Target root prefix  
    Source path      /home/ramsay/tinycc
    C compiler       gcc
    Target OS        Linux
    CPU              x86
    Big Endian       yes
    gprof enabled    no
    cross compilers  no
    use libgcc       no
    Creating config.mak and config.h
    $ make >out 2>&1
    $ make test
    make -C tests test
    make[1]: Entering directory `/home/ramsay/tinycc/tests'
    ------------ hello-exe ------------
    ../tcc -B.. ../examples/ex1.c -o hello || (../tcc -vv; exit 1) && ./hello
    tcc: error: file 'crt1.o' not found
    tcc: error: file 'crti.o' not found
    tcc: error: file 'crtn.o' not found
    tcc: error: undefined symbol 'printf'
    tcc version 0.9.25 (i386 Linux)
    install: /usr/local/lib/tcc/
    crt:
      /usr/lib/tls/i686/cmov
    libraries:
      /usr/lib/tls/i686/cmov
      /lib/tls/i686/cmov
      /usr/local/lib/tls/i686/cmov
    include:
      /usr/local/include
      /usr/local/include/tls/i686/cmov
      /usr/include
      /usr/include/tls/i686/cmov
      /usr/local/lib/tcc/include
    make[1]: *** [hello-exe] Error 1
    make[1]: Leaving directory `/home/ramsay/tinycc/tests'
    make: *** [test] Error 2
    $ 
    
    $ cat -n config.h
         1  /* Automatically generated by configure - do not modify */
         2  #ifndef CONFIG_TCCDIR
         3  # define CONFIG_TCCDIR "/usr/local/lib/tcc"
         4  #endif
         5  #ifndef CONFIG_MULTIARCHDIR
         6  # define CONFIG_MULTIARCHDIR "tls/i686/cmov"
         7  #endif
         8  #ifndef CONFIG_LDDIR
         9  # define CONFIG_LDDIR "lib/tls/i686/cmov"
        10  #endif
        11  #define GCC_MAJOR 4
        12  #define HOST_I386 1
        13  #define WORDS_BIGENDIAN 1
        14  #define TCC_VERSION "0.9.25"
    $ 

NOTE: that an x86 is bigendian! ;-P
    
    $ gcc -o config-print config-print.c
    $ ldd ./config-print
            linux-gate.so.1 =>  (0xffffe000)
            libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb7d98000)
            /lib/ld-linux.so.2 (0xb7ef0000)
    $ 
    
    $ ls -l /lib/tls/i686/cmov/libc.so.6 
    lrwxrwxrwx 1 root root 11 2007-06-24 19:45 /lib/tls/i686/cmov/libc.so.6 -> 
libc-2.5.so
    $ 
    
    $ ls /usr/lib/tls/i686/cmov
    ls: /usr/lib/tls/i686/cmov: No such file or directory
    $ ls /lib/tls/i686/cmov/
    ld-2.5.so               libmemusage.so         libnss_nis.so.2@
    ld-linux.so.2@          libm.so.6@             libpcprofile.so
    libanl-2.5.so           libnsl-2.5.so          libpthread-2.5.so
    libanl.so.1@            libnsl.so.1@           libpthread.so.0@
    libBrokenLocale-2.5.so  libnss_compat-2.5.so   libresolv-2.5.so
    libBrokenLocale.so.1@   libnss_compat.so.2@    libresolv.so.2@
    libc-2.5.so             libnss_dns-2.5.so      librt-2.5.so
    libcidn-2.5.so          libnss_dns.so.2@       librt.so.1@
    libcidn.so.1@           libnss_files-2.5.so    libSegFault.so
    libcrypt-2.5.so         libnss_files.so.2@     libthread_db-1.0.so
    libcrypt.so.1@          libnss_hesiod-2.5.so   libthread_db.so.1@
    libc.so.6@              libnss_hesiod.so.2@    libutil-2.5.so
    libdl-2.5.so            libnss_nis-2.5.so      libutil.so.1@
    libdl.so.2@             libnss_nisplus-2.5.so
    libm-2.5.so             libnss_nisplus.so.2@
    $ ls /usr/local/lib/tls/i686/cmov/
    ls: /usr/local/lib/tls/i686/cmov/: No such file or directory
    $ 
    
    $ find /lib -name crt1.o
    $ find /usr/lib -name crt1.o
    /usr/lib/crt1.o
    $ find /lib -name 'libc.*'
    /lib/libc.so.6
    /lib/tls/i686/cmov/libc.so.6
    $ find /usr/lib -name 'libc.*'
    /usr/lib/xen/libc.a
    /usr/lib/libc.a
    /usr/lib/libc.so
    $ 
    
    address@hidden:$ cat /usr/lib/libc.so
    /* GNU ld script
       Use the shared library, but some functions are only in
       the static library, so try that secondarily.  */
    OUTPUT_FORMAT(elf32-i386)
    GROUP ( /lib/libc.so.6 /usr/lib/libc_nonshared.a  AS_NEEDED ( 
/lib/ld-linux.so.2 ) )
    $ 
    
HTH

ATB,
Ramsay Jones