bsd/kern/kern_exec.c

317  * first argument to execve() stored on the user stack.
382  * state so that the interpreter can be saved onto the stack.
945 		/* Set the stack */
953 		/* Adjust the stack */
1715 	 * Allocate a big chunk for locals instead of using stack since these
2244  * TODO:	Dynamic linker header address on stack is copied via suword()
2286  * TODO:	Dynamic linker header address on stack is copied via suword()
2303 	/* Allocate a big chunk for locals instead of using stack since these
2452  * on a preinitialized stack frame.
2455  *		int *			a pointer to the stack offset variable
2461  *		(*stackp)		The stack offset, modified
2464  *		of the top of the stack to consume the minimal amount of
2465  *		space possible; the returned stack pointer points to the
2471  * The stack frame layout is:
2519  * which preceed it on the stack are properly aligned.
2534 	user_addr_t	stack;
2580 	stack = *stackp;
2591 	/* Grow the stack down for the strings we've been building up */
2593 	stack -= string_size;
2594 	string_area = stack;
2602 	stack -= ptr_area_size;
2603 	ptr_area = stack;
2614 	stack -= ptr_size;
2615 	argc_area = stack;
2626 	/* Return the initial stack address: the location of argc */
2627 	*stackp = stack;
2952  * Libc has an 8-element array set up for stack guard values.  It only fills
3385  * Description:	Set the user stack address for the process to the provided
3386  *		address.  If a custom stack was not set as a result of the
3388  *		executable), then allocate the stack in the provided map and
3390  *		limits on stack growth, if they end up being needed.
3392  * Parameters:	p			Process to set stack on
3394  *		map			Address map in which to allocate the new stack
3415 		 * Allocate enough space for the maximum stack size we
3417 		 * a guard page for stack overflows. For default stacks,
3447 		 * And prevent access to what's above the current stack
3643  *		process address space (at the top or bottom of the stack,
3644  *		depending on which way the stack grows; see the function