man pages section 3: Basic Library Functions

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Updated: July 2014
 
 

stack_getbounds(3C)

Name

stack_getbounds - retrieve stack boundaries

Synopsis

#include <ucontext.h>

int stack_getbounds(stack_t *sp);

Description

The stack_getbounds() function retrieves the stack boundaries that the calling thread is currently operating on. If the thread is currently operating on the alternate signal stack, this function will retrieve the bounds of that stack.

If successful, stack_getbounds() sets the ss_sp member of the stack_t structure pointed to by sp to the base of the stack region and the ss_size member to its size (maximum extent) in bytes. The ss_flags member is set to SS_ONSTACK if the calling thread is executing on its alternate signal stack, and zero otherwise.

Return Values

Upon successful completion, stack_getbounds() returns 0. Otherwise, −1 is returned and errno is set to indicate the error.

Errors

The stack_getbounds() function will fail if:

EFAULT

The sp argument does not refer to a valid address.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
Async-Signal-Safe

See Also

getustack(2), sigaction(2), sigaltstack(2), stack_setbounds(3C), attributes(5)