On Thu, Jan 14, 2021 at 12:21:05PM -0800, Fangrui Song wrote:
> On 2021-01-14, Martin Liška wrote:
> > On 1/14/21 11:07 AM, Richard Biener wrote:
> > > I see no particular reason to allow arbitrary garbage to be used as
> > > linker. It just asks for users to shoot themselves in the foot and
> > > for strange bugreports to pop up.
> >
> > Well, for a strange bug report, we'll see eventually usage of the
> > --ld-path= option.
> >
> > I see it handy when developing a ld feature to be able to point to a built
> > ld
> > (without need to build GCC with it). Yes, one can use --save-temps --verbose
> > and invoke the built linker, but it's not handy.
> >
> > Martin
> >
>
> I did this when I worked on some GNU ld features.
> clang --ld-path=/path/to/binutils/out/debug/ld/ld-new
> or debugging some Linux kernel issues related to ld.
>
> Having --ld-path= in GCC will be handy.
If the linker is called ld and there isn't random unrelated stuff in the
same directory, one can always just use -B path/to/ld/
Jakub
