-----Original Message----- From: Peter Pearse [mailto:peter.pearse@arm.com] Sent: 14 February 2008 13:59 To: 'wd@denx.de' Subject: RE: [U-Boot-Users] [PATCH][ARM] Rationalize ARM compiler options
-----Original Message----- From: wd@denx.de [mailto:wd@denx.de] Sent: 13 February 2008 22:51 To: Peter Pearse Cc: U-Boot-Users Subject: Re: [U-Boot-Users] [PATCH][ARM] Rationalize ARM compiler options
Please don't add too many empty lines.
OK - I'll change thie when I re-submit. I just like to be able to ripple thru my buffers to animate the differences between almost identical files.
Why exactly are you dropping -msoft-float here?
I was under the delusion that dropping this protected against incorporation of floating point instructions.
Have I now got a clear understanding of the position:-
" The use of floating point arithmetic in the U-Boot code is deprecated. However the ELDK toolchains provide floating point support and were built with the -msoft-float option. This option is supplied to the code to ensure any floating point arithmetic included links in the floating point support code correctly. "
If so I'll put -msoft-float in all arm config.mk files.
-# Make ARMv5 to allow more compilers to work, even though its v6. -PLATFORM_CPPFLAGS += -march=armv5 +PLATFORM_CPPFLAGS += -march=armv6
Why exactly are you changing this?
arm1136 is an ARM Architecture V6 processor.
My position is: " The main (arm) tree processor options should use the correct architecture option for the processor (provided this option is accepted without error or warning by the ELDK arm toolchains) Users using compilers which do not support the correct architecture should be made aware of this. Should they wish to use another compiler they can change this option locally. "
I would also accept (reluctantly, although it saves lots of space I could waste as empty lines ;-) )
" For simplicity, the main (arm) tree processor options use the lowest common architecture option (armv4), whatever the processor implements. Users can change this option locally. "
At present we have a mixture.....
Regards
Peter