1TracepointFmt = 2 'name' ':' Space n:PropertyName EndLine { free(n.string); } 3 'ID:' Space v:Number EndLine { yy->ctx.tp->event_id = v.integer; } 4 'format:' EndLine 5 Field+ 6 'print fmt:' [^.]* !. 7 8Field = Space (Property ';' Space)+ EndLine 9 { yy->ctx.tp->n_fields++; } 10 | EndLine 11 12Property = 'offset' ':' v:Number 13 { yy->ctx.tp->fields[yy->ctx.tp->n_fields].offset = v.integer; } 14 | 'size' ':' v:Number 15 { yy->ctx.tp->fields[yy->ctx.tp->n_fields].size = v.integer; } 16 | 'signed' ':' v:Number 17 { yy->ctx.tp->fields[yy->ctx.tp->n_fields].is_signed = v.integer != 0; } 18 | 'field' ':' v:PropertyValue 19 { snprintf(yy->ctx.tp->fields[yy->ctx.tp->n_fields].name, 20 sizeof(yy->ctx.tp->fields[yy->ctx.tp->n_fields].name), 21 "%s", strrchr(v.string, ' ') + 1); 22 free(v.string); } 23 | n:PropertyName ':' v:PropertyValue 24 { free(n.string); free(v.string); } 25 26PropertyName = < [A-Za-z0-9_]+ > 27 { $$.string = strdup(yytext); } 28PropertyValue = < [^;]+ > 29 { $$.string = strdup(yytext); } 30Number = < [0-9]+ > 31 { $$.integer = atoi(yytext); } 32 33EndLine = [\n] 34Space = [ \t]* 35