mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-12-23 12:03:41 +01:00
86 lines
1.6 KiB
Groff
86 lines
1.6 KiB
Groff
'\" t
|
|
.\" Manual page created with latex2man on Fri Aug 31 13:39:04 EEST 2012
|
|
.\" NOTE: This file is generated, DO NOT EDIT.
|
|
.de Vb
|
|
.ft CW
|
|
.nf
|
|
..
|
|
.de Ve
|
|
.ft R
|
|
|
|
.fi
|
|
..
|
|
.TH "UNW\\_BACKTRACE" "3" "31 August 2012" "Programming Library " "Programming Library "
|
|
.SH NAME
|
|
unw_backtrace
|
|
\-\- return backtrace for the calling program
|
|
.PP
|
|
.SH SYNOPSIS
|
|
|
|
.PP
|
|
#include <libunwind.h>
|
|
.br
|
|
.PP
|
|
int
|
|
unw_backtrace(void **buffer,
|
|
int size);
|
|
.br
|
|
.PP
|
|
#include <execinfo.h>
|
|
.br
|
|
.PP
|
|
int
|
|
backtrace(void **buffer,
|
|
int size);
|
|
.br
|
|
.PP
|
|
.SH DESCRIPTION
|
|
|
|
.PP
|
|
unw_backtrace()
|
|
is a convenient routine for obtaining the backtrace for
|
|
the calling program. The routine fills up to size
|
|
addresses in the array
|
|
pointed by buffer\&.
|
|
The routine is only available for local unwinding.
|
|
.PP
|
|
Note that many (but not all) systems provide practically identical function
|
|
called backtrace().
|
|
The prototype for this function is usually obtained
|
|
by including the <execinfo.h>
|
|
header file \-\- a prototype for
|
|
backtrace()
|
|
is not provided by libunwind\&.
|
|
libunwind
|
|
weakly
|
|
aliases backtrace()
|
|
to unw_backtrace(),
|
|
so when a program
|
|
calling backtrace()
|
|
is linked against libunwind,
|
|
it may end up
|
|
calling unw_backtrace().
|
|
.PP
|
|
.SH RETURN VALUE
|
|
|
|
.PP
|
|
The routine returns the number of addresses stored in the array pointed by
|
|
buffer\&.
|
|
The return value may be zero to indicate that no addresses were
|
|
stored.
|
|
.PP
|
|
.SH SEE ALSO
|
|
|
|
.PP
|
|
libunwind(3),
|
|
unw_step(3)
|
|
.PP
|
|
.SH AUTHOR
|
|
|
|
.PP
|
|
David Mosberger\-Tang
|
|
.br
|
|
Email: \fBdmosberger@gmail.com\fP
|
|
.br
|
|
WWW: \fBhttp://www.nongnu.org/libunwind/\fP\&.
|
|
.\" NOTE: This file is generated, DO NOT EDIT.
|