'\" t
.\"     Title: libtraceevent
.\"    Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 05/23/2021
.\"    Manual: libtraceevent Manual
.\"    Source: libtraceevent 1.3.0
.\"  Language: English
.\"
.TH "LIBTRACEEVENT" "3" "05/23/2021" "libtraceevent 1\&.3\&.0" "libtraceevent Manual"
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.SH "NAME"
tep_find_function, tep_find_function_address \- Find function name / start address\&.
.SH "SYNOPSIS"
.sp
.nf
\fB#include <event\-parse\&.h>\fR

const char *\fBtep_find_function\fR(struct tep_handle *\fItep\fR, unsigned long long \fIaddr\fR);
unsigned long long \fBtep_find_function_address\fR(struct tep_handle *\fItep\fR, unsigned long long \fIaddr\fR);
.fi
.SH "DESCRIPTION"
.sp
These functions can be used to find function name and start address, by given address\&. The given address does not have to be exact, it will select the function that would contain it\&.
.sp
The \fItep_find_function()\fR function returns the function name, which contains the given address \fIaddr\fR\&. The \fItep\fR argument is the trace event parser context\&.
.sp
The \fItep_find_function_address()\fR function returns the function start address, by given address \fIaddr\fR\&. The \fIaddr\fR does not have to be exact, it will select the function that would contain it\&. The \fItep\fR argument is the trace event parser context\&.
.SH "RETURN VALUE"
.sp
The \fItep_find_function()\fR function returns the function name, or NULL in case it cannot be found\&.
.sp
The \fItep_find_function_address()\fR function returns the function start address, or 0 in case it cannot be found\&.
.SH "EXAMPLE"
.sp
.if n \{\
.RS 4
.\}
.nf
#include <event\-parse\&.h>
\&.\&.\&.
struct tep_handle *tep = tep_alloc();
\&.\&.\&.
void show_function( unsigned long long addr)
{
        const char *fname = tep_find_function(tep, addr);
        unsigned long long fstart = tep_find_function_address(tep, addr);

        /* addr is in function named fname, starting at fstart address, at offset (addr \- fstart) */
}
\&.\&.\&.
.fi
.if n \{\
.RE
.\}
.SH "FILES"
.sp
.if n \{\
.RS 4
.\}
.nf
\fBevent\-parse\&.h\fR
        Header file to include in order to have access to the library APIs\&.
\fB\-ltraceevent\fR
        Linker switch to add when building a program that uses the library\&.
.fi
.if n \{\
.RE
.\}
.SH "SEE ALSO"
.sp
\fIlibtraceevent(3)\fR, \fItrace\-cmd(1)\fR
.SH "AUTHOR"
.sp
.if n \{\
.RS 4
.\}
.nf
\fBSteven Rostedt\fR <\m[blue]\fBrostedt@goodmis\&.org\fR\m[]\&\s-2\u[1]\d\s+2>, author of \fBlibtraceevent\fR\&.
\fBTzvetomir Stoyanov\fR <\m[blue]\fBtz\&.stoyanov@gmail\&.com\fR\m[]\&\s-2\u[2]\d\s+2>, author of this man page\&.
.fi
.if n \{\
.RE
.\}
.SH "REPORTING BUGS"
.sp
Report bugs to <\m[blue]\fBlinux\-trace\-devel@vger\&.kernel\&.org\fR\m[]\&\s-2\u[3]\d\s+2>
.SH "LICENSE"
.sp
libtraceevent is Free Software licensed under the GNU LGPL 2\&.1
.SH "RESOURCES"
.sp
\m[blue]\fBhttps://git\&.kernel\&.org/pub/scm/libs/libtrace/libtraceevent\&.git/\fR\m[]
.SH "NOTES"
.IP " 1." 4
rostedt@goodmis.org
.RS 4
\%mailto:rostedt@goodmis.org
.RE
.IP " 2." 4
tz.stoyanov@gmail.com
.RS 4
\%mailto:tz.stoyanov@gmail.com
.RE
.IP " 3." 4
linux-trace-devel@vger.kernel.org
.RS 4
\%mailto:linux-trace-devel@vger.kernel.org
.RE