Still problems with gcc 3.4 and visibility
thiago.macieira at kdemail.net
Sun Nov 28 12:04:19 GMT 2004
Michael Pyne wrote:
>$ nm -D ~/kde/lib/kde3/kded_kwalletd.so | grep KDEDModule
> U _ZN10KDEDModule11qt_propertyEiiP8QVariant
> U _ZN10KDEDModule16staticMetaObjectEv
> U _ZN10KDEDModule7qt_castEPKc
> U _ZN10KDEDModule7qt_emitEiP8QUObject
> U _ZN10KDEDModule9qt_invokeEiP8QUObject
> U _ZN10KDEDModuleC2ERK8QCString
> U _ZN10KDEDModuleD2Ev
> U _ZTI10KDEDModule
>The output was similar when -fvisibility=hidden was enabled, except that
> the 'U's were all 'V' instead, indicating a weak symbol.
U means undefined, V is virtual and W is weak.
Since you're listing kded_walled.so, this are how they're supposed to; the
symbols are imported. Please list libkdeinit_kded.so, which is where the
symbol is supposed to be:
$ readelf -a /usr/local/kde3/lib/libkdeinit_kded.so | grep TI10KDEDModule
00021b44 00021801 R_386_32 00021be0 _ZTI10KDEDModule
00021ba4 00021801 R_386_32 00021be0 _ZTI10KDEDModule
536: 00021be0 32 OBJECT WEAK DEFAULT 21 _ZTI10KDEDModule
641: 00021be0 32 OBJECT WEAK DEFAULT 21 _ZTI10KDEDModule
The important thing isn't the object's weakness, but its visibility. In
this case, it's exported ("default").
It shouldn't be defined in kded_walletd.so.
Thiago Macieira - Registered Linux user #65028
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