'\" t
.\"     Title: function::print_ubacktrace
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: November 2020
.\"    Manual: Context Functions
.\"    Source: SystemTap Tapset Reference
.\"  Language: English
.\"
.TH "FUNCTION::PRINT_UBAC" "3stap" "November 2020" "SystemTap Tapset Reference" "Context Functions"
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.SH "NAME"
function::print_ubacktrace \- Print stack back trace for current user\-space task\&.
.SH "SYNOPSIS"
.sp
.nf
1) print_ubacktrace()
.fi
.sp
.nf
2) print_ubacktrace(pc:long,sp:long,fp:long)
.fi
.SH "ARGUMENTS"
.PP
\fIpc\fR
.RS 4
override PC
.RE
.PP
\fIsp\fR
.RS 4
override SP
.RE
.PP
\fIfp\fR
.RS 4
override FP
.RE
.SH "DESCRIPTION"
.PP
1)
.PP
2) Equivalent to print_ustack(\fBubacktrace\fR), except that deeper stack nesting may be supported\&. Returns nothing\&. See
\fBprint_backtrace\fR
for kernel backtrace\&.
.PP
Equivalent to
\fBprint_ubacktrace\fR, but it performs the backtrace using the pc, sp, and fp provided\&. Useful
.SH "NOTE"
.PP
To get (full) backtraces for user space applications and shared shared libraries not mentioned in the current script run stap with \-d /path/to/exe\-or\-so and/or add \-\-ldd to load all needed unwind data\&.
.SH SEE ALSO\n 
.IR tapset::ucontext-unwind (3stap)
.SH SEE ALSO\n 
.IR tapset::ucontext-unwind (3stap)