how to fix linker message with shared libobjc library?

how to fix linker message with shared libobjc library?

[Ovidiu Predescu]

[-- Attachment #1: Type: text/plain, Size: 502 bytes --]

Hi,

I get the following warning from the linker whenever I try linking a program 
against the shared version of libobjc:

/usr/bin/ld: warning: type and size of dynamic symbol 
`__objc_class_name_NXConstantString' are not defined

Such a warning is issued by the linker when compiling string{1,2}.m in the
testsuite directory for Objective-C.

This message doesn't appear when I link against the static version of the
library. Does anybody know how to eliminate the warning message?

Thanks,
Ovidiu



[-- Attachment #2: pgp00000.pgp --]
[-- Type: text/plain, Size: 820 bytes --]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Content-Type: text/plain; charset=us-ascii


Hi,

I get the following warning from the linker whenever I try linking a program 
against the shared version of libobjc:

/usr/bin/ld: warning: type and size of dynamic symbol 
`__objc_class_name_NXConstantString' are not defined

Such a warning is issued by the linker when compiling string{1,2}.m in the
testsuite directory for Objective-C.

This message doesn't appear when I link against the static version of the
library. Does anybody know how to eliminate the warning message?

Thanks,
Ovidiu


-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.2 (GNU/Linux)
Comment: Exmh version 2.2 06/23/2000

iD8DBQE5jb3o1cM8Hy0YC5kRAseYAJ46ipCeaH2Isnw8TCjR2lwrNNQQ+gCfT2h/
gad+oH34BfIFX8uDM+kM/co=
=W1Et
-----END PGP SIGNATURE-----

Re: how to fix linker message with shared libobjc library?

[H . J . Lu]

On Sun, Aug 06, 2000 at 12:35:05PM -0700, Ovidiu Predescu wrote:
> 
> Hi,
> 
> I get the following warning from the linker whenever I try linking a program 
> against the shared version of libobjc:
> 
> /usr/bin/ld: warning: type and size of dynamic symbol 
> `__objc_class_name_NXConstantString' are not defined
> 
> Such a warning is issued by the linker when compiling string{1,2}.m in the
> testsuite directory for Objective-C.
> 
> This message doesn't appear when I link against the static version of the
> library. Does anybody know how to eliminate the warning message?

I think it is a bug in the Objective-C compiler. For ABIs with the
copy relocation, like ia32, a dynamic data symbol may have to have
size and type to work correctly. The Objective-C compiler should
either don't generate __objc_class_name_NXConstantString or output

	.type	__objc_class_name_NXConstantString,@object
__objc_class_name_NXConstantString:
.L???:
	....
	.size	__objc_class_name_NXConstantString,.L???-__objc_class_name_NXConstantString


H.J.