129 struct stack_block {  struct
130 	struct stack_block *prev;  argument
133 #define SPACE(sp)	((char*)(sp) + ALIGN(sizeof(struct stack_block)))
135 static struct stack_block *stackp;
144 	struct stack_block *sp;  in stnewblock()
150 	allocsize = ALIGN(sizeof(struct stack_block)) + ALIGN(nbytes);  in stnewblock()
218 	struct stack_block *sp;  in popstackmark()
253 	struct stack_block *sp;  in growstackblock()
254 	struct stack_block *oldstackp;  in growstackblock()
259 	    INT_MAX / 2 - ALIGN(sizeof(struct stack_block)))  in growstackblock()
262 	min += ALIGN(sizeof(struct stack_block));  in growstackblock()
281 		newlen -= ALIGN(sizeof(struct stack_block));  in growstackblock()