Lin George <george4academic@xxxxxxxxx> writes:
> Do you mean -fpic and -fPIC will make GOT and PLT
> different? If yes, what are the differences?
I quote the documentation about -fPIC:
If supported for the target machine, emit position-independent
code, suitable for dynamic linking and avoiding any limit on the
size of the global offset table. This option makes a difference
on the m68k, PowerPC and SPARC.
The difference is that with -fPIC there is no limit on the size of the
GOT. The precise details depend on the platform.
Ian
> --- Ian Lance Taylor <iant@xxxxxxxxxx> wrote:
>
> > Lin George <george4academic@xxxxxxxxx> writes:
> >
> > > Could you provide a little more information
> > please? I
> > > mean what is the different things generated by
> > -fpic
> > > and -fPIC in a shared library?
> >
> > To make the code position independent and to permit
> > the executable to
> > override symbols defined in the shared library, all
> > global variables
> > are accessed via a table of addresses (the Global
> > Offset Table, or
> > GOT) and all functions are called via a table of
> > branches (the
> > Procedure Linkage Table, or PLT). The dynamic
> > linker initializes the
> > GOT and PLT at runtime. The precise details depend
> > on the platform.
> >
> > Ian
> >
>
>
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