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.\" ========================================================================
.\"
.IX Title "App::Stacktrace 3pm"
.TH App::Stacktrace 3pm "2020-11-08" "perl v5.32.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
App::Stacktrace \- Stack trace
.SH "VERSION"
.IX Header "VERSION"
version 0.09
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  perl\-stacktrace [option] pid
\&
\&    \-m      Prints a gdb script
\&    \-v      Verbose debugging
\&    \-c      Additionally, prints C stacktrace
\&    \-\-help  Show this help
\&
\&    \-\-exec  exec() into gdb
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
perl-stacktrace prints Perl stack traces of Perl threads for a given
Perl process. For each Perl frame, the full file name and line number
are printed.
.PP
For example, a stack dump of a running perl program:
.PP
.Vb 3
\&    $ ps x | grep cpan
\&    24077 pts/12   T      0:01 /usr/local/bin/perl /usr/local/bin/cpan
\&    24093 pts/12   S+     0:00 grep cpan
\&
\&    $ perl\-stacktrace 24077
\&    0x00d73416 in _\|_kernel_vsyscall ()
\&    /usr/local/bin/cpan:11
\&    /usr/local/lib/perl5/5.12.2/App/Cpan.pm:364
\&    /usr/local/lib/perl5/5.12.2/App/Cpan.pm:295
\&    /usr/local/lib/perl5/5.12.2/CPAN.pm:339
\&    /usr/local/lib/perl5/5.12.2/Term/ReadLine.pm:198
.Ve
.SH "API"
.IX Header "API"
There exists an internal \s-1API\s0
.SS "new"
.IX Subsection "new"
This accepts the following parameters by applying them through
Getopt::Long. This is actually just a front for the script
\&\fIperl-stacktrace\fR's command line handling.
.PP
.Vb 7
\&  App::Stacktrace\->new(
\&      $pid,       # The process to attach to
\&      \*(Aqm\*(Aq,        # Dump the generated script
\&      \*(Aqv\*(Aq,        # Verbose
\&      \*(Aqexec\*(Aq,     # exec() into gdb
\&      \*(Aq\-\-noexec\*(Aq, # system() into gdb
\&  );
.Ve
.SS "run"
.IX Subsection "run"
Runs the app program as configured by the \f(CW\*(C`\->new(...)\*(C'\fR method.
.PP
.Vb 2
\&    $obj = App::Stacktrace\->new( ... );
\&    $obj\->run;
.Ve