Re: [U-Boot] [PATCH] Makefile: ensure DTB doesn't overflow into initial stack

11 Jan 2018


      On 01/10/2018 04:04 PM, Simon Glass wrote:
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On 9 January 2018 at 11:52, Stephen Warren swarren@wwwdotorg.org wrote:
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With CONFIG_SYS_INIT_SP_BSS_OFFSET enabled, the initial (pre-relocation)
stack is placed some distance after bss_start. The control DTB is appended
to the U-Boot binary at bss_start. If the DTB is too large, or the SP BSS
offset too small, then the initial stack could corrupt the DTB. Enhance
the Makefile to check whether this is likely to occur.
...
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Looking at the code here I wonder if it would be easy to check this in binman?
Well, considering it's already implemented in the Makefile, and quite 
simply, I'd have to say no:-)