[PATCH] tools: Remove #include <version.h>

[Pali Rohár]

On Monday 01 February 2021 16:20:18 Tom Rini wrote:
> On Wed, Jan 27, 2021 at 04:34:24PM +0100, Pali Rohár wrote:
> 
> > Header file version.h includes also autogenerated file timestamp.h which
> > is recompiled on every time when SOURCE_DATE_EPOCH change.
> > 
> > Tools do not use build time therefore they do not have to include
> > timestamp.h file.
> > 
> > This change prevents recompiling tools every time when SOURCE_DATE_EPOCH
> > changes.
> > 
> > Signed-off-by: Pali Rohár <pali at kernel.org>
> > ---
> >  tools/dumpimage.c  | 2 +-
> >  tools/mkenvimage.c | 2 +-
> >  tools/mkimage.c    | 2 +-
> >  3 files changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/tools/dumpimage.c b/tools/dumpimage.c
> > index e5481435a7..54c2517c9e 100644
> > --- a/tools/dumpimage.c
> > +++ b/tools/dumpimage.c
> > @@ -7,7 +7,7 @@
> >  
> >  #include "dumpimage.h"
> >  #include <image.h>
> > -#include <version.h>
> > +#include "generated/version_autogenerated.h"
> >  
> >  static void usage(void);
> >  
> 
> I don't know if I really like this approach.  It also seems inconsistent
> as we have for example tools/fit-image.c that has content from
> generated/version_autogenerated.h but wasn't changed by this patch (nor
> the rest of the series).
> 
> I think a bit more invasive approach is required here.  I like the
> <version_string.h> approach you used elsewhere, and as best I can see,
> the only place U_BOOT_VERSION_STRING, which is where we have the
> timestamp itself, is used is cmd/version.c (and defined in version.h).
> We should isolate the file that has the date such that it's only
> in one file and referenced in one file.  This means probably removing
> the version_string global from arch/{powerpc,m68k} and dropping __weak
> from cmd/version.c and seeing what happens, as well.
> 
> Do you see where I'm thinking with this, or do I need to try and explain
> a bit more?  Thanks!

Hello Tom! I think I understood what you mean. I would need to look at
all places where version strings and timestamps in any forms are used as
this approach would need some other cleanup...

> 
> -- 
> Tom