[ipxe-devel] [PATCH] [build] sort objects in blib.a

[Olaf Hering]

Ping?

On Mon, Feb 02, Olaf Hering wrote:

> When building hvmloader for Xen tools the ipxe objects are also linked
> into the binary. Unfortunately the linker will place them in the order
> found in the archive. Since this order is random the resulting
> hvmloader binary differs when it was built from identical sources but
> on different build hosts. To help with creating a reproducible binary
> the elements in blib.a must simply be sorted before passing them to
> $(AR).
> 
> Signed-off-by: Olaf Hering <olaf at aepfle.de>
> ---
>  src/Makefile.housekeeping | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping
> index 1a75d39..e1cdee6 100644
> --- a/src/Makefile.housekeeping
> +++ b/src/Makefile.housekeeping
> @@ -1012,7 +1012,7 @@ BLIB		= $(BIN)/blib.a
>  $(BLIB) : $(BLIB_OBJS) $(BLIB_LIST) $(MAKEDEPS)
>  	$(Q)$(RM) $(BLIB)
>  	$(QM)$(ECHO) "  [AR] $@"
> -	$(Q)$(AR) r $@ $(BLIB_OBJS)
> +	$(Q)$(AR) r $@ $(sort $(BLIB_OBJS))
>  	$(Q)$(RANLIB) $@
>  blib : $(BLIB)
>