ref: f2c207cb4460634d7c2145d6f62406ba8c21a10a
dir: /src/link/parser.y/
/* * Copyright (C) 2017 Antonio Nino Diaz <[email protected]> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ %{ #include <stdio.h> #include "extern/err.h" #include "link/script.h" int yylex(); void yyerror(char *); extern int yylineno; %} %union { int i; char s[512]; } %token<i> INTEGER %token<s> STRING %token<s> SECTION_NONBANKED %token<s> SECTION_BANKED %token COMMAND_ALIGN %token COMMAND_ORG %token COMMAND_INCLUDE %token NEWLINE %start lines %% lines: /* empty */ | lines line NEWLINE ; line: /* empty */ | statement ; statement: /* Statements to set the current section */ SECTION_NONBANKED { script_SetCurrentSectionType($1, 0); } | SECTION_NONBANKED INTEGER { script_fatalerror("Trying to assign a bank to a non-banked section.\n"); } | SECTION_BANKED { script_fatalerror("Banked section without assigned bank.\n"); } | SECTION_BANKED INTEGER { script_SetCurrentSectionType($1, $2); } /* Commands to adjust the address inside the current section */ | COMMAND_ALIGN INTEGER { script_SetAlignment($2); } | COMMAND_ALIGN { script_fatalerror("ALIGN keyword needs an argument.\n"); } | COMMAND_ORG INTEGER { script_SetAddress($2); } | COMMAND_ORG { script_fatalerror("ORG keyword needs an argument.\n"); } /* Section name */ | STRING { script_OutputSection($1); } /* Include file */ | COMMAND_INCLUDE STRING { script_IncludeFile($2); } /* End */ ; %% extern int yylex(); extern int yyparse(); int yywrap(void) { if (script_IncludeDepthGet() == 0) return 1; script_IncludePop(); return 0; } void yyerror(char *s) { script_fatalerror("Linkerscript parse error: \"%s\"\n", s); }