overlay/tracepoint_format.leg

TracepointFmt =
    'name' ':' Space n:PropertyName EndLine
        { free(v.string); }
    'ID:' Space v:Number EndLine
        { yy->ctx.tp->event_id = v.integer; }
    'format:' EndLine
    Field+
    'print fmt:' [^.]* !.

Field         = Space (Property ';' Space)+ EndLine
        { yy->ctx.tp->n_fields++; }
              | EndLine

Property      = 'offset' ':' v:Number
        { yy->ctx.tp->fields[yy->ctx.tp->n_fields].offset = v.integer; }
              | 'size' ':' v:Number
        { yy->ctx.tp->fields[yy->ctx.tp->n_fields].size = v.integer; }
              | 'signed' ':' v:Number
        { yy->ctx.tp->fields[yy->ctx.tp->n_fields].is_signed = v.integer != 0; }
              | 'field' ':' v:PropertyValue
        { snprintf(yy->ctx.tp->fields[yy->ctx.tp->n_fields].name,
                   sizeof(yy->ctx.tp->fields[yy->ctx.tp->n_fields].name),
                   "%s", strrchr(v.string, ' ') + 1); free(v.string); }
              | n:PropertyName ':' v:PropertyValue
        { free(n.string); free(v.string); }

PropertyName  = < [A-Za-z0-9_]+ >
        { $$.string = strdup(yytext); }
PropertyValue = < [^;]+ >
        { $$.string = strdup(yytext); }
Number        = < [0-9]+ >
        { $$.integer = atoi(yytext); }

EndLine       = [\n]
Space         = [ \t]*