man/man3c/thr_stksegment.3c

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 thr_stksegment 3C "15 Jun 2000" "SunOS 5.11" "Standard C Library Functions"
 NAME
thr_stksegment - get thread stack address and size
 SYNOPSIS

cc -mt [ flag... ] file...[ library... ]
#include <thread.h>
#include <signal.h>

int thr_stksegment(stack_t *ss);


 DESCRIPTION

The thr_stksegment() function returns, in its stack_t argument, the
address and size of the calling thread's stack.

The stack_t structure includes the following members:
void *ss_sp
size_t ss_size
int ss_flags


On successful return from thr_stksegment(), ss_sp contains the high
address of the caller's stack and ss_size contains the size of the stack
in bytes. The ss_flags member is always 0. Note that the meaning of
ss_sp is reversed from other uses of stack_t such as
sigaltstack(2) where ss_sp is the low address.

The stack information provided by thr_stksegment() is typically used by
debuggers, garbage collectors, and similar applications. Most applications
should not require such information.
 RETURN VALUES

The thr_stksegment() function returns 0 if the thread stack
address and size were successfully retrieved. Otherwise, it returns a non-zero
error value.
 ERRORS

The thr_stksegment() function will fail if:

EAGAIN

The stack information for the thread is not available because the thread's
initialization is not yet complete, or the thread is an internal thread.


 ATTRIBUTES

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


ATTRIBUTE TYPEATTRIBUTE VALUE
MT-LevelMT-Safe


 SEE ALSO

sigaltstack(2), thr_create(3C), attributes(5)