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|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* fips730 src/engd/initfiles/ifcompiler/initCompiler.y 1.1 */
/* */
/* IBM CONFIDENTIAL */
/* */
/* OBJECT CODE ONLY SOURCE MATERIALS */
/* */
/* COPYRIGHT International Business Machines Corp. 2010 */
/* All Rights Reserved */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* IBM_PROLOG_END_TAG */
// Change Log *************************************************************************************
//
// Flag Track Userid Date Description
// ---- -------- -------- -------- -------------------------------------------------------------
// D754106 dgilbert 06/14/10 Create
// D774126 dgilbert 09/30/10 Add ERROR: to yyerror message
// andrewg 09/19/11 Updates based on review
// End Change Log *********************************************************************************
/**
* @file initCompiler.y
* @brief Contains the yacc/bison code for parsing an initfile.
*
* This code runs as part of the build process to generate a
* byte-coded representation of an initfile
*/
%{
#include <stdio.h>
#include <stdint.h>
#include <string>
#include <iostream>
#include <iomanip>
#include <sstream>
#include <initCompiler.H>
#include <initSymbols.H>
init::Scom * current_scom = NULL;
extern int yylex();
void yyerror(const char * s);
int scom;
%}
/* Union for the yylval variable in lex or $$ variables in bsion code.
* Used to store the data associated with a parsed token.
*/
%union{
uint32_t integer;
uint64_t uint64;
std::string * str_ptr;
init::Rpn * rpn_ptr;
}
/* indicates the name for the start symbol */
%start input
/* Define terminal symbols and the union type
* associated with each. */
%token <integer> INIT_INTEGER
%token <uint64> INIT_INT64
%token <str_ptr> INIT_INT64_STR
%token <str_ptr> INIT_SCOM_ADDR
%token <str_ptr> INIT_SCOM_SUFFIX
%token <uint64> INIT_SCOM_DATA
%token <str_ptr> INIT_ID
%token <str_ptr> INIT_VERSIONS
%token <str_ptr> ATTRIBUTE_INDEX
/* Define terminal symbols that don't have any associated data */
%token INIT_VERSION
%token INIT_ENDINITFILE
%token INIT_BITS
%token INIT_EXPR
%token INIT_TARG
%token INIT_DEFINE
%token INIT_EQ
%token INIT_NE
%token INIT_LE
%token INIT_GE
%token INIT_SCANINIT
%token INIT_SCOMINIT
%token INIT_SCOM
%token INIT_SCOMD
/* non-terminal tokens and the union data-type associated with them */
%type <str_ptr> bitsrows
%type <rpn_ptr> expr id_col num_list
/* top is lowest precedent - done last */
%left INIT_LOGIC_OR
%left INIT_LOGIC_AND
%left '|' /* bitwise OR */
%left '^' /* bitwise XOR */
%left '&' /* bitwise AND */
%left INIT_EQ INIT_NE
%left INIT_LE INIT_GE '<' '>'
%left INIT_SHIFT_RIGHT INIT_SHIFT_LEFT
%left '-' '+'
%left '*' '/' '%'
%right '!' '~' /* logic negation bitwise complement*/
/* bottom is highest precedent - done first */
%%
/* Grammars */
/* the 'input' is simply all the lines */
input:
| input line
;
line: scom
| cvs_versions
| syntax_version
| define
| INIT_ENDINITFILE { yyscomlist->clear_defines(); }
;
cvs_versions: INIT_VERSIONS
{
yyscomlist->set_cvs_versions($1); delete $1;
}
;
syntax_version: INIT_VERSION '=' INIT_INTEGER
{
yyscomlist->set_syntax_version($3);
}
;
scom: INIT_SCOM {current_scom = new init::Scom(yyscomlist->get_symbols(),yyline);}
| scom scomaddr '{' scombody '}'
{
/* printf("Found an INIT_SCOM!\n"); */
/* current_scom = new init::Scom(yyscomlist->get_symbols(),yyline); */
}
;
scomaddr:
| INIT_SCOM_ADDR {
/*printf("Found an INIT_SCOM_ADDR 0x%X!\n",$1);*/
current_scom->set_scom_address(*($1)); delete $1;
yyscomlist->insert(current_scom);
}
| scomaddr '(' scom_list ')' { }
| scomaddr '(' scom_list ')' INIT_SCOM_SUFFIX { current_scom->set_scom_suffix(*($5)); delete $5; }
;
scom_list: INIT_INT64_STR { current_scom->dup_scom_address(*($1));delete $1;}
| scom_list ',' INIT_INT64_STR { current_scom->dup_scom_address(*($3));delete $3;}
;
/* The scombody was reformatted by the scanner
* colname1 , row1 , row 2, ... , row n ;
* colname2 , row1 , row 2, ... , row n ;
*/
scombody: scombodyline ';' {}
| scombody scombodyline ';' {}
;
scombodyline: INIT_SCOMD ',' scomdrows {}
| INIT_BITS ',' bitsrows {}
| INIT_EXPR ',' exprrows { init::dbg << "Add col EXPR" << endl; current_scom->add_col("EXPR"); }
| INIT_ID ',' idrows {
current_scom->add_col(*($1));
init::dbg << "Add col " << *($1) << endl;
delete $1;
}
;
scomdrows: expr {
/*printf("scomdrows - RPN Address:0x%X\n",$1);*/
init::dbg << $1->listing("Length scom RPN");
current_scom->add_scom_rpn($1);
}
| scomdrows ',' expr { init::dbg << $3->listing("Length scom RPN"); current_scom->add_scom_rpn($3); }
;
/*
scomdrows: id_col { printf("scomdrows\n"); }
;
*/
bitsrows: bitrange {}
| bitsrows ',' bitrange {}
;
bitrange: INIT_INTEGER { current_scom->add_bit_range($1,$1); }
| INIT_INTEGER ':' INIT_INTEGER
{ current_scom->add_bit_range($1,$3); }
;
exprrows: expr { init::dbg << $1->listing(NULL); current_scom->add_row_rpn($1); }
| exprrows ',' expr
{ init::dbg << $3->listing(NULL); current_scom->add_row_rpn($3); }
;
idrows: id_col { init::dbg << $1->listing(NULL); current_scom->add_row_rpn($1); }
| idrows ',' id_col { init::dbg << $3->listing(NULL); current_scom->add_row_rpn($3); }
;
// TODO num_list could be VARs,LITs, or even ranges eg {1,2..5,7}
id_col: INIT_ID { $$ = new init::Rpn(*($1),yyscomlist->get_symbols()); $$->push_op(init::Rpn::EQ); delete $1; }
| INIT_INTEGER { $$ = new init::Rpn($1,yyscomlist->get_symbols()); $$->push_op(init::Rpn::EQ); }
| '{' num_list '}' { $$ = $2; $2->push_op(init::Rpn::LIST); $2->push_op(init::Rpn::EQ); }
;
num_list: INIT_INTEGER { $$ = new init::Rpn($1,yyscomlist->get_symbols()); }
| INIT_ID { $$ = new init::Rpn(*($1),yyscomlist->get_symbols()); }
| num_list ',' INIT_INTEGER { $$ = $1; $1->merge(new init::Rpn($3,yyscomlist->get_symbols())); }
| num_list ',' INIT_ID { $$ = $1; $1->merge(new init::Rpn(*($3),yyscomlist->get_symbols())); }
;
define: INIT_DEFINE INIT_ID '=' expr ';'
{
init::dbg << $2 << ':' << endl << $4->listing("Length of rpn for Define");
yyscomlist->add_define($2,$4);
delete $2;
}
;
/* expr should return an RPN string of some kind */
expr: INIT_INTEGER { $$= new init::Rpn($1,yyscomlist->get_symbols()); }
| INIT_ID { $$= new init::Rpn(*($1),yyscomlist->get_symbols()); delete $1; }
| INIT_INT64 { $$=new init::Rpn($1,yyscomlist->get_symbols()); }
| expr INIT_LOGIC_OR expr { $$ = $1->push_merge($3,init::Rpn::OR); }
| expr INIT_LOGIC_AND expr { $$ = $1->push_merge($3,init::Rpn::AND); }
| expr ATTRIBUTE_INDEX { $1->push_array_index(*($2));}
| expr INIT_EQ expr { $$ = $1->push_merge($3,init::Rpn::EQ); }
| expr INIT_NE expr { $$ = $1->push_merge($3,init::Rpn::NE); }
| expr INIT_LE expr { $$ = $1->push_merge($3,init::Rpn::LE); }
| expr INIT_GE expr { $$ = $1->push_merge($3,init::Rpn::GE); }
| expr '<' expr { $$ = $1->push_merge($3,init::Rpn::LT); }
| expr '>' expr { $$ = $1->push_merge($3,init::Rpn::GT); }
| expr INIT_SHIFT_RIGHT expr { $$ = $1->push_merge($3,init::Rpn::SHIFTRIGHT); }
| expr INIT_SHIFT_LEFT expr { $$ = $1->push_merge($3,init::Rpn::SHIFTLEFT); }
| expr '+' expr { $$ = $1->push_merge($3,init::Rpn::PLUS); }
| expr '-' expr { $$ = $1->push_merge($3,init::Rpn::MINUS); }
| expr '*' expr { $$ = $1->push_merge($3,init::Rpn::MULT); }
| expr '/' expr { $$ = $1->push_merge($3,init::Rpn::DIVIDE); }
| expr '%' expr { $$ = $1->push_merge($3,init::Rpn::MOD); }
| '!' expr { $$ = $2->push_op(init::Rpn::NOT); }
/* | '~' expr { $$ = $2->push_op("~"); } */
| '(' expr ')' { $$ = $2; }
;
%%
void yyerror(const char * s)
{
init::erros << setfill('-') << setw(80) << '-' << endl;
init::erros << setfill('0');
init::erros << "Parse Error line " << dec << setw(4) << yyline << ": yychar = "
<< dec << (uint32_t) yychar << " [0x" << hex << (uint32_t) yychar << "] '";
if(isprint(yychar)) init::erros << (char)yychar;
else init::erros << ' ';
init::erros << "' yylval = " << hex << "0x" << setw(8) << yylval.integer << endl;
init::erros << "ERROR: " << s << endl;
init::erros << setfill('-') << setw(80) << '-' << endl << endl;
}
|
