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With permission from the main authors [1], most of the code has been relicensed under the MIT license. SPDX license identifiers are used so that the license headers in source code files aren't too large. Add CONTRIBUTORS.rst file. [1] https://github.com/rednex/rgbds/issues/128 Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
128 lines
1.7 KiB
Plaintext
128 lines
1.7 KiB
Plaintext
/*
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* This file is part of RGBDS.
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*
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* Copyright (c) 2017-2018, Antonio Nino Diaz and RGBDS contributors.
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*
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* SPDX-License-Identifier: MIT
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*/
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%{
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#include <stdint.h>
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#include <stdio.h>
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#include "extern/err.h"
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#include "link/script.h"
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int yylex();
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void yyerror(char *);
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extern int yylineno;
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%}
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%union {
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int32_t i;
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char s[512];
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}
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%token<i> INTEGER
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%token<s> STRING
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%token<s> SECTION_NONBANKED
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%token<s> SECTION_BANKED
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%token COMMAND_ALIGN
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%token COMMAND_ORG
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%token COMMAND_INCLUDE
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%token NEWLINE
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%start lines
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%%
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lines:
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/* empty */
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| lines line NEWLINE
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;
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line:
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/* empty */
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| statement
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;
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statement:
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/* Statements to set the current section */
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SECTION_NONBANKED
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{
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script_SetCurrentSectionType($1, 0);
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}
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| SECTION_NONBANKED INTEGER
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{
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script_fatalerror("Trying to assign a bank to a non-banked section.\n");
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}
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| SECTION_BANKED
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{
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script_fatalerror("Banked section without assigned bank.\n");
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}
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| SECTION_BANKED INTEGER
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{
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script_SetCurrentSectionType($1, $2);
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}
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/* Commands to adjust the address inside the current section */
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| COMMAND_ALIGN INTEGER
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{
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script_SetAlignment($2);
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}
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| COMMAND_ALIGN
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{
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script_fatalerror("ALIGN keyword needs an argument.\n");
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}
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| COMMAND_ORG INTEGER
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{
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script_SetAddress($2);
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}
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| COMMAND_ORG
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{
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script_fatalerror("ORG keyword needs an argument.\n");
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}
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/* Section name */
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| STRING
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{
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script_OutputSection($1);
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}
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/* Include file */
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| COMMAND_INCLUDE STRING
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{
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script_IncludeFile($2);
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}
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/* End */
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;
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%%
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extern int yylex();
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extern int yyparse();
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int yywrap(void)
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{
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if (script_IncludeDepthGet() == 0)
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return 1;
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script_IncludePop();
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return 0;
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}
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void yyerror(char *s)
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{
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script_fatalerror("Linkerscript parse error: \"%s\"\n", s);
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}
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