[coreboot] libpayload: Add PAYLOAD_PARAM

[Jordan Crouse]

On 27/05/08 21:58 +0200, Peter Stuge wrote:
> On Tue, May 27, 2008 at 01:46:52PM -0600, Jordan Crouse wrote:
> > libpayload: Add PAYLOAD_PARAM macro
> > 
> > Adds the PAYLOAD_PARAM macro to store payload information in a data
> > section in the ELF which can be consumed by other entities.
> 
> Great!
> 
> 
> > Signed-off-by: Jordan Crouse <jordan.crouse at amd.com>
> 
> Per discussion on IRC, if the macro name is changed to PAYLOAD_INFO
> (and the other patches I acked updated to follow suit) then this is:
> 
> Acked-by: Peter Stuge <peter at stuge.se>

r3354 with PAYLOAD_PARAM renamed to PAYLOAD_INFO.

> 
> > Index: libpayload/include/libpayload.h
> > ===================================================================
> > --- libpayload.orig/include/libpayload.h	2008-05-15 10:05:02.000000000 -0600
> > +++ libpayload/include/libpayload.h	2008-05-15 11:34:20.000000000 -0600
> > @@ -55,6 +55,18 @@
> >  
> >  #define RAND_MAX 0x7fffffff
> >  
> > +/* Payload information parameters - these are used to pass information
> > + * to the entity loading the payload
> > + * Usage:  PAYLOAD_PARAM(key, value)
> > + * Example:  PAYLOAD_PARAM(name, "CoreInfo!")
> > + */
> > +
> > +#define _pstruct(key) __pinfo_ ##key
> > +#define PAYLOAD_PARAM(key, value)                                        \
> > +static const char _pstruct(key)[]                                        \
> > +  __attribute__((__used__))                                              \
> > +  __attribute__((section(".note.pinfo"),unused)) = #key "=" value
> > +
> >  /* Some NVRAM byte definitions */
> >  #define NVRAM_RTC_SECONDS        0
> >  #define NVRAM_RTC_MINUTES        2
> > Index: libpayload/lib/libpayload.ldscript
> > ===================================================================
> > --- libpayload.orig/lib/libpayload.ldscript	2008-05-15 10:49:33.000000000 -0600
> > +++ libpayload/lib/libpayload.ldscript	2008-05-15 11:34:05.000000000 -0600
> > @@ -81,5 +81,5 @@
> >  
> >  	_end = .;
> >  
> > -	/DISCARD/ : { *(.comment) *(.note) *(.note.*) }
> > +	/DISCARD/ : { *(.comment) }
> >  }
> 
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-- 
Jordan Crouse
Systems Software Development Engineer 
Advanced Micro Devices, Inc.