162 lines
3.4 KiB
Text
162 lines
3.4 KiB
Text
/*
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* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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%glr-parser
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%locations
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%{
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#include "dtc.h"
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int yylex (void);
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void yyerror (char const *);
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extern struct boot_info *the_boot_info;
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%}
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%union {
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cell_t cval;
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u8 byte;
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char *str;
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struct data data;
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struct property *prop;
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struct property *proplist;
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struct node *node;
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struct node *nodelist;
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int datalen;
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int hexlen;
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u64 addr;
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struct reserve_info *re;
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}
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%token DT_MEMRESERVE
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%token <addr> DT_ADDR
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%token <str> DT_PROPNAME
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%token <str> DT_NODENAME
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%token <cval> DT_CELL
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%token <byte> DT_BYTE
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%token <data> DT_STRING
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%token <str> DT_UNIT
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%token <str> DT_LABEL
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%token <str> DT_REF
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%type <data> propdata
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%type <re> memreserve
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%type <re> memreserves
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%type <data> celllist
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%type <data> bytestring
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%type <prop> propdef
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%type <proplist> proplist
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%type <node> devicetree
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%type <node> nodedef
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%type <node> subnode
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%type <nodelist> subnodes
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%type <str> label
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%type <str> nodename
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%%
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sourcefile: memreserves devicetree {
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the_boot_info = build_boot_info($1, $2);
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}
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;
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memreserves: memreserve memreserves {
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$$ = chain_reserve_entry($1, $2);
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}
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| /* empty */ {
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$$ = NULL;
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}
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;
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memreserve: DT_MEMRESERVE DT_ADDR DT_ADDR ';' {
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$$ = build_reserve_entry($2, $3, NULL);
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}
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| DT_MEMRESERVE DT_ADDR '-' DT_ADDR ';' {
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$$ = build_reserve_entry($2, $4 - $2 + 1, NULL);
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}
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;
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devicetree: '/' nodedef {
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$$ = name_node($2, "", NULL);
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}
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;
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nodedef: '{' proplist subnodes '}' ';' {
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$$ = build_node($2, $3);
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}
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;
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proplist: propdef proplist {
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$$ = chain_property($1, $2);
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}
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| /* empty */ {
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$$ = NULL;
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}
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;
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propdef: label DT_PROPNAME '=' propdata ';' {
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$$ = build_property($2, $4, $1);
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}
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| label DT_PROPNAME ';' {
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$$ = build_property($2, empty_data, $1);
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}
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;
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propdata: DT_STRING { $$ = $1; }
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| '<' celllist '>' { $$ = $2; }
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| '[' bytestring ']' { $$ = $2; }
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;
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celllist: celllist DT_CELL { $$ = data_append_cell($1, $2); }
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| celllist DT_REF {
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$$ = data_append_cell(data_add_fixup($1, $2), -1);
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}
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| /* empty */ { $$ = empty_data; }
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;
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bytestring: bytestring DT_BYTE { $$ = data_append_byte($1, $2); }
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| /* empty */ { $$ = empty_data; }
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;
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subnodes: subnode subnodes {
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$$ = chain_node($1, $2);
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}
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| /* empty */ { $$ = NULL; }
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;
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subnode: label nodename nodedef { $$ = name_node($3, $2, $1); }
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;
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nodename: DT_NODENAME { $$ = $1; }
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| DT_PROPNAME { $$ = $1; }
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;
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label: DT_LABEL { $$ = $1; }
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| /* empty */ { $$ = NULL; }
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;
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%%
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void yyerror (char const *s)
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{
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fprintf (stderr, "%s at line %d\n", s, yylloc.first_line);
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}
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