stack_setbounds(3C) Standard C Library Functions stack_setbounds(3C)NAMEstack_setbounds - update stack boundaries
SYNOPSIS
#include <ucontext.h>
int stack_setbounds(const stack_t *sp);
DESCRIPTION
The stack_setbounds() function updates the current base and bounds of
the stack for the current thread to the bounds specified by the stack_t
structure pointed to by sp. The ss_sp member refers to the virtual
address of the base of the stack memory. The ss_size member refers to
the size of the stack in bytes. The ss_flags member must be set to 0.
RETURN VALUES
Upon successful completion, stack_setbounds() returns 0. Otherwise, −1
is returned and errno is set to indicate the error.
ERRORS
The stack_setbounds() function will fail if:
EFAULT The sp argument does not refer to a valid address or
the ss_sp member of the stack_t structure pointed to by
sp points to an illegal address.
EINVAL The ss_sp member of the stack_t structure pointed to by
sp is not properly aligned, the ss_size member is too
small or is not properly aligned, or the ss_flags mem‐
ber is non-zero.
USAGE
The stack_setbounds() function is intended for use by applications that
are managing their own alternate stacks.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Evolving │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │Async-Signal-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOgetustack(2), _stack_grow(3C), stack_getbounds(3C), stack_inbounds(3C),
stack_violation(3C), attributes(5)SunOS 5.10 18 Jul 2002 stack_setbounds(3C)
