882 __hidden char *append_string(char *str, const char *space, const char *add)  in append_string()  function
919 		str = append_string(str, " ", name);  in add_synth_field()
920 		str = append_string(str, NULL, "[");  in add_synth_field()
924 			str = append_string(str, NULL, size);  in add_synth_field()
926 		return append_string(str, NULL, "];");  in add_synth_field()
934 		str = append_string(str, " ", name);  in add_synth_field()
935 		return append_string(str, NULL, ";");  in add_synth_field()
971 	str = append_string(str, " ", name);  in add_synth_field()
972 	return append_string(str, NULL, ";");  in add_synth_field()
1038 		format = append_string(format, i ? " " : NULL, field);  in alloc_synthetic_event()
1835 		save = append_string(save, delim, fields[i]);  in tracefs_synth_save()
1837 	save = append_string(save, NULL, ")");  in tracefs_synth_save()
1879 			hist = append_string(hist, NULL, ",");  in create_hist()
1880 		hist = append_string(hist, NULL, name);  in create_hist()
1886 	hist = append_string(hist, NULL, ":");  in create_hist()
1891 			hist = append_string(hist, NULL, ",");  in create_hist()
1892 		hist = append_string(hist, NULL, name);  in create_hist()
1900 	hist = append_string(hist, NULL, ":onmatch(");  in create_onmatch()
1901 	hist = append_string(hist, NULL, synth->start_event->system);  in create_onmatch()
1902 	hist = append_string(hist, NULL, ".");  in create_onmatch()
1903 	hist = append_string(hist, NULL, synth->start_event->name);  in create_onmatch()
1904 	return append_string(hist, NULL, ")");  in create_onmatch()
1913 		hist = append_string(hist, NULL, ".trace(");  in create_trace()
1914 		hist = append_string(hist, NULL, synth->name);  in create_trace()
1915 		hist = append_string(hist, NULL, ",");  in create_trace()
1917 		hist = append_string(hist, NULL, ".");  in create_trace()
1918 		hist = append_string(hist, NULL, synth->name);  in create_trace()
1919 		hist = append_string(hist, NULL, "(");  in create_trace()
1926 			hist = append_string(hist, NULL, ",");  in create_trace()
1927 		hist = append_string(hist, NULL, name);  in create_trace()
1930 	return append_string(hist, NULL, ")");  in create_trace()
1935 	hist = append_string(hist, NULL, ":onmax(");  in create_max()
1936 	hist = append_string(hist, NULL, field);  in create_max()
1937 	return append_string(hist, NULL, ")");  in create_max()
1942 	hist = append_string(hist, NULL, ":onchange(");  in create_change()
1943 	hist = append_string(hist, NULL, field);  in create_change()
1944 	return append_string(hist, NULL, ")");  in create_change()
1976 			hist = append_string(hist, NULL, ".snapshot()");  in create_actions()
1979 			hist = append_string(hist, NULL, action->save);  in create_actions()
2064 	hist = append_string(hist, NULL, " if ");  in append_filter()
2065 	hist = append_string(hist, NULL, filter);  in append_filter()
2067 		hist = append_string(hist, NULL, ")");  in append_filter()