xiaoxiang781216 commented on pull request #3517:
URL: https://github.com/apache/incubator-nuttx/pull/3517#issuecomment-817828085


   > There is really too many unrelated changes in this PR to review properly. 
It should be separated into several PRs that can be properly reviewed.
   
   The rename change is already separated to a new patch, you can review it 
here:
   
https://github.com/apache/incubator-nuttx/pull/3517/commits/401d8cce169340e50fe74487bb8a3ed9144c086a
   
   The rest change relate to each other:
   
   1. Allocate the space from the lowest stack(up_stack_frame)
   2. The stack dump/check need adjust because adj_stack_ptr point to the low 
end of stack
   3. TLS data need to explicitly be allocated by up_stack_frame to ensure it's 
address always equals stack_alloc_ptr
   4. vfork also need adjust since the implementation of vfork couple with how 
the stack memory allocate
   
   You can review this patch here:
   
https://github.com/apache/incubator-nuttx/pull/3517/commits/07f0019fe0ecb53f3870069408dabfc57949307a


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