RE: ARM: CONFIG_FRAME_POINTER

Woodruff, Richard
2009-05-13T15:55:32Z

Hi Jon,

> From: Hunter, Jon
> Sent: Wednesday, May 13, 2009 10:48 AM

> KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls

Ok so -fno-optimize-sibling-calls is busted in older compiler.

I wonder if there are other reasons for the exclusion of this optimization in kernel code. Would be interesting to google and see. There might be 3 other reasons it is needed in addition to one we tripped over.

Regards,
Richard W.