Re: [Mesa3d-dev] undefined symbols and silent fallback to swrast

[Xavier C. <cha...@gm...>]

On Mon, Mar 15, 2010 at 12:41 AM, tom fogal <tf...@al...> wrote:
>
> That's just the default compiler/linker setup on Linux.  This is in
> contrast to, say, OS X, where undefined symbols cause link errors.
>
> You can emulate the above by building with -Wl,--no-undefined (or maybe
> -no-undefined, something like that, see ld(1)).
>

Looks like I am entering in a dangerous territory.
With -Wl,--no-undefined, I get so many errors that it did not fit in
my terminal buffer :P
http://paste.pocoo.org/show/189694/

With -Wl,--no-allow-shlib-undefined it's a bit better but it is still scary :

/bin/sh ../../../../../bin/mklib -o swrast_dri.so -noprefix -linker
'gcc' -ldflags '-Wl,--no-allow-shlib-undefined' \
		../../common/driverfuncs.o ../common/utils.o swrast.o swrast_span.o
 ../../../../../src/mesa/libmesa.a    -ldrm   -lexpat -lm -lpthread
-ldl
mklib: Making Linux shared library:  swrast_dri.so
LDFLAGS : -Wl,--no-allow-shlib-undefined
/lib/libpthread.so.0: undefined reference to `_dl_allocate_tls@GLIBC_PRIVATE'
/lib/libpthread.so.0: undefined reference to
`_dl_get_tls_static_info@GLIBC_PRIVATE'
/lib/libc.so.6: undefined reference to `_dl_argv@GLIBC_PRIVATE'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.4.3/../../../../lib/libdl.so:
undefined reference to `_rtld_global_ro@GLIBC_PRIVATE'
/lib/libpthread.so.0: undefined reference to `__tls_get_addr@GLIBC_2.3'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.4.3/../../../../lib/libdrm.so:
undefined reference to `clock_gettime@GLIBC_2.2.5'
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.4.3/../../../../lib/libdl.so:
undefined reference to `_dl_rtld_di_serinfo@GLIBC_PRIVATE'
/lib/libpthread.so.0: undefined reference to
`_dl_make_stack_executable@GLIBC_PRIVATE'
/lib/libpthread.so.0: undefined reference to
`_dl_allocate_tls_init@GLIBC_PRIVATE'
/lib/libpthread.so.0: undefined reference to `_rtld_global@GLIBC_PRIVATE'
/lib/libpthread.so.0: undefined reference to `__libc_stack_end@GLIBC_2.2.5'
/lib/libc.so.6: undefined reference to `__libc_enable_secure@GLIBC_PRIVATE'
/lib/libpthread.so.0: undefined reference to `_dl_deallocate_tls@GLIBC_PRIVATE'
collect2: ld returned 1 exit status

This is with swrast, but the result with nouveau was quite similar.