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Re: a question about compiling nptl in glibc

On Tue, Mar 25, 2003 at 01:27:33PM +0800, Hu, Boris wrote:
> I could cross-compiled glibc-2.3.2 with glibc-linuxthreads-2.3.2
> with the target arm-linux using Daniel's patches.
> However, when adding my nptl arm patch(with the same patch, 
> I could get the libpthread.a in one glibc version), the glibc makefile 
> seems not to compile nptl. 
> any hints/pointers?  thanks a lot.  
> $ pwd 
> /boris/toolchain/glibc-2.3.2/sea2
> $ ../configure arm-linux --prefix=/tmp/install --enable-add-ons=nptl 
> --without-tls --without-__thread  --build=i686-pc-linux-gnu
> $ make 
> ......
> arm-linux-gcc   -shared -static-libgcc -Wl,-O1  -Wl,-z,defs -Wl,-dynamic-linker=/tmp/install/lib/  -B/boris/toolchain/glibc-2.3.2/sea2/csu/  -Wl,--version-script=/boris/toolchain/glibc-2.3.2/sea2/ -Wl, -Wl,-z,combreloc -nostdlib -nostartfiles -e __libc_main -u __register_frame -L/boris/toolchain/glibc-2.3.2/sea2 -L/boris/toolchain/glibc-2.3.2/sea2/math -L/boris/toolchain/glibc-2.3.2/sea2/elf -L/boris/toolchain/glibc-2.3.2/sea2/dlfcn -L/boris/toolchain/glibc-2.3.2/sea2/nss -L/boris/toolchain/glibc-2.3.2/sea2/nis -L/boris/toolchain/glibc-2.3.2/sea2/rt -L/boris/toolchain/glibc-2.3.2/sea2/resolv -L/boris/toolchain/glibc-2.3.2/sea2/crypt -L/boris/toolchain/glibc-2.3.2/sea2/nptl -Wl,-rpath-link=/boris/toolchain/glibc-2.3.2/sea2:/boris/toolchain/glibc-2.3.2/sea2/math:/boris/toolchain/glibc-2.3.2/sea2/elf:/boris/toolchain/glibc-2.3.2/sea2/dlfcn:/boris/toolchain/glibc-2.3.2/sea2/nss:/boris/toolchain/glibc-2.3.2/sea2/nis:/boris/toolchain/glibc-2.3.2/sea2/rt:/boris/toolchain/glibc-2.3.2/sea2/resolv:/boris/toolchain/glibc-2.3.2/sea2/crypt:/boris/toolchain/glibc-2.3.2/sea2/nptl -o /boris/toolchain/glibc-2.3.2/sea2/ -T /boris/toolchain/glibc-2.3.2/sea2/ /boris/toolchain/glibc-2.3.2/sea2/csu/abi-note.o /boris/toolchain/glibc-2.3.2/sea2/elf/soinit.os /boris/toolchain/glibc-2.3.2/sea2/libc_pic.os /boris/toolchain/glibc-2.3.2/sea2/elf/sofini.os /boris/toolchain/glibc-2.3.2/sea2/elf/interp.os /boris/toolchain/glibc-2.3.2/sea2/elf/ -lgcc
> /boris/toolchain/glibc-2.3.2/sea2/libc_pic.os(.text+0x1453c): In function `*__GI___sigsuspend':
> ../sysdeps/unix/sysv/linux/sigsuspend.c:93: undefined reference to `__libc_multiple_threads'
> .....
> collect2: ld returned 1 exit status
> make[1]: *** [/boris/toolchain/glibc-2.3.2/sea2/] Error 1
> make[1]: Leaving directory `/boris/toolchain/glibc-2.3.2'
> make: *** [all] Error 2

Whatever patch you're using is probably broken.  However, the line
above doesn't make any sense.  It is not possible to build NPTL without
both TLS and __thread.

Unless someone at Intel's done it and not talked about it, binutils,
gcc, and probably the kernel all need to be updated for ARM TLS

Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

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