Backends now only contain the essential backend-specific code, and most of the work is moved to frontend code. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
		
			
				
	
	
		
			40 lines
		
	
	
		
			947 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			40 lines
		
	
	
		
			947 B
		
	
	
	
		
			Python
		
	
	
	
	
	
#!/usr/bin/env python
 | 
						|
# -*- coding: utf-8 -*-
 | 
						|
 | 
						|
"""
 | 
						|
Stderr built-in backend.
 | 
						|
"""
 | 
						|
 | 
						|
__author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
 | 
						|
__copyright__  = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
 | 
						|
__license__    = "GPL version 2 or (at your option) any later version"
 | 
						|
 | 
						|
__maintainer__ = "Stefan Hajnoczi"
 | 
						|
__email__      = "stefanha@linux.vnet.ibm.com"
 | 
						|
 | 
						|
 | 
						|
from tracetool import out
 | 
						|
 | 
						|
 | 
						|
PUBLIC = True
 | 
						|
 | 
						|
 | 
						|
def generate_h_begin(events):
 | 
						|
    out('#include <stdio.h>',
 | 
						|
        '#include "trace/control.h"',
 | 
						|
        '')
 | 
						|
 | 
						|
 | 
						|
def generate_h(event):
 | 
						|
    argnames = ", ".join(event.args.names())
 | 
						|
    if len(event.args) > 0:
 | 
						|
        argnames = ", " + argnames
 | 
						|
 | 
						|
    out('    if (trace_event_get_state(%(event_id)s)) {',
 | 
						|
        '        fprintf(stderr, "%(name)s " %(fmt)s "\\n" %(argnames)s);',
 | 
						|
        '    }',
 | 
						|
        event_id="TRACE_" + event.name.upper(),
 | 
						|
        name=event.name,
 | 
						|
        fmt=event.fmt.rstrip("\n"),
 | 
						|
        argnames=argnames)
 |