cvs commit: src/usr.bin/ldd ldd.1 ldd.c

[Tom Evans]

On Thu, 2008-07-03 at 22:37 +0000, Edwin Groothuis wrote:
> edwin       2008-07-03 22:37:51 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     usr.bin/ldd          ldd.1 ldd.c 
>   Log:
>   SVN rev 180236 on 2008-07-03 22:37:51Z by edwin
>   
>   On 64 bit architectures, you can run 32 bit executables and the rtld can trace them, but ldd(1) doesn't know yet how to detect them:
>   
>       [/] root at ed-exigent>ldd `which httpd`
>       ldd: /usr/local/sbin/httpd: can't read program header
>       ldd: /usr/local/sbin/httpd: not a dynamic executable
>   
>       But...
>   
>       [/] root at ed-exigent>LD_32_TRACE_LOADED_OBJECTS==1 `which httpd`
>       libm.so.4 => /lib32//libm.so.4 (0x280c8000)
>       libaprutil-1.so.2 => /usr/local/lib/libaprutil-1.so.2 (0x280de000)
>       libexpat.so.6 => /usr/local/lib/libexpat.so.6 (0x280f2000)
>       libiconv.so.3 => /usr/local/lib/libiconv.so.3 (0x28110000)
>       libapr-1.so.2 => /usr/local/lib/libapr-1.so.2 (0x281fd000)
>       libcrypt.so.3 => /lib32//libcrypt.so.3 (0x2821d000)
>       libpthread.so.2 => not found (0x0)
>       libc.so.6 => /lib32//libc.so.6 (0x28235000)
>       libpthread.so.2 => /usr/lib32/libpthread.so.2 (0x2830d000)
>   
>   Added support in ldd(1) for the LD_32_xxx environment variables if
>   the architecture of the machine is >32 bits. If we ever go to 128
>   bit architectures this excercise will have to be repeated but thanks
>   to earlier commits today it will be relative simple.
>   
>   PR:             bin/124906
>   Submitted by:   edwin
>   Approved by:    bde (mentor)
>   MFC after:      1 week
>   
>   Revision  Changes    Path
>   1.27      +6 -0      src/usr.bin/ldd/ldd.1
>   1.36      +76 -2     src/usr.bin/ldd/ldd.c

Hi Edwin, this is fantastic. Can it be MFC'ed to RELENG_6?

Cheers

Tom
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