stack_setbounds(3C) Standard C Library Functions stack_setbounds(3C)
NAME
stack_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 member 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 ALSO
getustack(2), _stack_grow(3C), stack_getbounds(3C), stack_inbounds(3C), stack_violation(3C), attributes(5)
SunOS 5.11 18 Jul 2002 stack_setbounds(3C)