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* [RFC PATCH] powerpc: crypto/vmx: clean up generated files
@ 2016-11-15 17:05 Naveen N. Rao
  2016-11-16 10:02 ` Michael Ellerman
  0 siblings, 1 reply; 4+ messages in thread
From: Naveen N. Rao @ 2016-11-15 17:05 UTC (permalink / raw)
  To: Leonidas S. Barbosa, Herbert Xu
  Cc: Paulo Flabiano Smorigo, linux-crypto, linuxppc-dev, Michael Ellerman

..as stray .S files result in build errors, especially when using
cross-compilers.

More specifically, the generated .S files are endian-specific and will break
subsequent builds targeting the other endian architecture.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
---
 drivers/crypto/vmx/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
index de6e241..31b25cb 100644
--- a/drivers/crypto/vmx/Makefile
+++ b/drivers/crypto/vmx/Makefile
@@ -16,4 +16,4 @@ $(src)/aesp8-ppc.S: $(src)/aesp8-ppc.pl
 $(src)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl
 	$(call cmd,perl)
 
-.PRECIOUS: $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S
+clean-files := aesp8-ppc.S ghashp8-ppc.S
-- 
2.10.2

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [RFC PATCH] powerpc: crypto/vmx: clean up generated files
  2016-11-15 17:05 [RFC PATCH] powerpc: crypto/vmx: clean up generated files Naveen N. Rao
@ 2016-11-16 10:02 ` Michael Ellerman
  2016-11-16 11:27     ` Naveen N. Rao
  0 siblings, 1 reply; 4+ messages in thread
From: Michael Ellerman @ 2016-11-16 10:02 UTC (permalink / raw)
  To: Naveen N. Rao, Leonidas S. Barbosa, Herbert Xu
  Cc: Paulo Flabiano Smorigo, linux-crypto, linuxppc-dev

"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> writes:

> ..as stray .S files result in build errors, especially when using
> cross-compilers.

They should be cleaned on make clean, so adding them to clean-files
seems correct.

> More specifically, the generated .S files are endian-specific and will break
> subsequent builds targeting the other endian architecture.

But that indicates we're missing an if_changed somewhere, ie. switching
endian should cause them to be regenerated.

Also they should be generated into $(obj) not $(src) I think.

How about this?

diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
index de6e241..52f6ae9 100644
--- a/drivers/crypto/vmx/Makefile
+++ b/drivers/crypto/vmx/Makefile
@@ -10,10 +10,10 @@ endif
 quiet_cmd_perl = PERL $@
       cmd_perl = $(PERL) $(<) $(TARGET) > $(@)
 
-$(src)/aesp8-ppc.S: $(src)/aesp8-ppc.pl
-       $(call cmd,perl)
+$(obj)/aesp8-ppc.S: $(src)/aesp8-ppc.pl FORCE
+       $(call if_changed,perl)
   
-$(src)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl
-       $(call cmd,perl)
+$(obj)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl FORCE
+       $(call if_changed,perl)
 
 .PRECIOUS: $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S


cheers

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [RFC PATCH] powerpc: crypto/vmx: clean up generated files
  2016-11-16 10:02 ` Michael Ellerman
@ 2016-11-16 11:27     ` Naveen N. Rao
  0 siblings, 0 replies; 4+ messages in thread
From: Naveen N. Rao @ 2016-11-16 11:27 UTC (permalink / raw)
  To: Michael Ellerman
  Cc: Leonidas S. Barbosa, linuxppc-dev, Herbert Xu,
	Paulo Flabiano Smorigo, linux-crypto

On 2016/11/16 09:02PM, Michael Ellerman wrote:
> "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> writes:
> 
> > ..as stray .S files result in build errors, especially when using
> > cross-compilers.
> 
> They should be cleaned on make clean, so adding them to clean-files
> seems correct.
> 
> > More specifically, the generated .S files are endian-specific and will break
> > subsequent builds targeting the other endian architecture.
> 
> But that indicates we're missing an if_changed somewhere, ie. switching
> endian should cause them to be regenerated.
> 
> Also they should be generated into $(obj) not $(src) I think.
> 
> How about this?

Nice!

> 
> diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
> index de6e241..52f6ae9 100644
> --- a/drivers/crypto/vmx/Makefile
> +++ b/drivers/crypto/vmx/Makefile
> @@ -10,10 +10,10 @@ endif
>  quiet_cmd_perl = PERL $@
>        cmd_perl = $(PERL) $(<) $(TARGET) > $(@)
> 

Looks like we also need:

targets += aesp8-ppc.S ghashp8-ppc.S

> -$(src)/aesp8-ppc.S: $(src)/aesp8-ppc.pl
> -       $(call cmd,perl)
> +$(obj)/aesp8-ppc.S: $(src)/aesp8-ppc.pl FORCE
> +       $(call if_changed,perl)
>    
> -$(src)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl
> -       $(call cmd,perl)
> +$(obj)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl FORCE
> +       $(call if_changed,perl)
> 
>  .PRECIOUS: $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S

I will send a v2 with these changes.

Thanks,
Naveen

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [RFC PATCH] powerpc: crypto/vmx: clean up generated files
@ 2016-11-16 11:27     ` Naveen N. Rao
  0 siblings, 0 replies; 4+ messages in thread
From: Naveen N. Rao @ 2016-11-16 11:27 UTC (permalink / raw)
  To: Michael Ellerman
  Cc: Leonidas S. Barbosa, Herbert Xu, linuxppc-dev, linux-crypto,
	Paulo Flabiano Smorigo

On 2016/11/16 09:02PM, Michael Ellerman wrote:
> "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> writes:
> 
> > ..as stray .S files result in build errors, especially when using
> > cross-compilers.
> 
> They should be cleaned on make clean, so adding them to clean-files
> seems correct.
> 
> > More specifically, the generated .S files are endian-specific and will break
> > subsequent builds targeting the other endian architecture.
> 
> But that indicates we're missing an if_changed somewhere, ie. switching
> endian should cause them to be regenerated.
> 
> Also they should be generated into $(obj) not $(src) I think.
> 
> How about this?

Nice!

> 
> diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
> index de6e241..52f6ae9 100644
> --- a/drivers/crypto/vmx/Makefile
> +++ b/drivers/crypto/vmx/Makefile
> @@ -10,10 +10,10 @@ endif
>  quiet_cmd_perl = PERL $@
>        cmd_perl = $(PERL) $(<) $(TARGET) > $(@)
> 

Looks like we also need:

targets += aesp8-ppc.S ghashp8-ppc.S

> -$(src)/aesp8-ppc.S: $(src)/aesp8-ppc.pl
> -       $(call cmd,perl)
> +$(obj)/aesp8-ppc.S: $(src)/aesp8-ppc.pl FORCE
> +       $(call if_changed,perl)
>    
> -$(src)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl
> -       $(call cmd,perl)
> +$(obj)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl FORCE
> +       $(call if_changed,perl)
> 
>  .PRECIOUS: $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S

I will send a v2 with these changes.

Thanks,
Naveen

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2016-11-16 11:27 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-11-15 17:05 [RFC PATCH] powerpc: crypto/vmx: clean up generated files Naveen N. Rao
2016-11-16 10:02 ` Michael Ellerman
2016-11-16 11:27   ` Naveen N. Rao
2016-11-16 11:27     ` Naveen N. Rao

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