HelenOS sources

ABI_STACK_FRAME    45 kernel/arch/mips32/include/arch/context.h #define SP_DELTA  (ABI_STACK_FRAME + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
ABI_STACK_FRAME    44 uspace/lib/c/arch/mips32/include/libarch/fibril.h #define SP_DELTA  (ABI_STACK_FRAME + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))