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133 lines
2.8 KiB
133 lines
2.8 KiB
/* |
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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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%{ |
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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 node *device_tree; |
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%} |
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%union { |
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cell_t cval; |
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uint8_t 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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} |
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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 <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> 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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%glr-parser |
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%% |
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devicetree: { |
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assert(device_tree == NULL); |
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} '/' nodedef { device_tree = name_node($3, "", NULL); } |
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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\n", s); |
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}
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