Re: [PATCH] remove old GCC version implementation
From: Masahiro Yamada
Date: Wed Oct 31 2018 - 12:14:11 EST
On Wed, Oct 31, 2018 at 8:28 PM Miguel Ojeda
> On Wed, Oct 31, 2018 at 12:18 PM Mathieu Malaterre <malat@xxxxxxxxxx> wrote:
> > GCC 4.6 is the minimum supported now.
> > Signed-off-by: Mathieu Malaterre <malat@xxxxxxxxxx>
> > ---
> > scripts/mod/file2alias.c | 6 +-----
> > 1 file changed, 1 insertion(+), 5 deletions(-)
> > diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
> > index 28a61665bb9c..4b59564d4706 100644
> > --- a/scripts/mod/file2alias.c
> > +++ b/scripts/mod/file2alias.c
> > @@ -83,11 +83,7 @@ extern struct devtable *__start___devtable, *__stop___devtable;
> > #endif /* __MACH__ */
> > #if !defined(__used)
> > -# if __GNUC__ == 3 && __GNUC_MINOR__ < 3
> > -# define __used __attribute__((__unused__))
> > -# else
> > -# define __used __attribute__((__used__))
> > -# endif
> > +#define __used __attribute__((__used__))
> > #endif
> Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>
> By the way, is it possible that scripts/ and similar stuff uses
> directly include/linux/compiler_attributes.h (whenever it hits
> mainline, see https://github.com/ojeda/linux/blob/compiler-attributes/include/linux/compiler_attributes.h
> )? It is a header that does not depend on anything, so it could easily
> be shared; and would avoid having to maintain two sets of attributes.
> Let me know, I can take a look at it if you think it is a good idea.
I want to share a header file between kernel and host-tools
only when we need to do so.
In this case, it is wrong to use the linker magic for the host tool
if you look at the so ugly #if defined(__MACH__) part.