> I would like to reduce this to > > STACK_BOUNDARY > > -- minimum alignment enforced by hardware. >... > -- unchanged
This may be determined by factors other than hardware. For example the ARM EABI requires that the stack be 8-byte aligned at public entry points. However within a function the stack pointer is only required to be 4-byte aligned. We currently set S_B=64 and hope nothing notices that the prologue/epilogue involve transient 32-bit aligned values. Your proposal doesn't make this problem any worse, if anything it's better because we don't have to device between S_B and PREFERRED_STACK_BOUNDARY. I'm just noting that documenting this as a hardware property is at best misleading. Paul
