432 lines
12 KiB
Plaintext
432 lines
12 KiB
Plaintext
%{
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/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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GLD is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GLD 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GLD; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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This was written by steve chamberlain
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sac@cygnus.com
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*/
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typedef int bfd_vma;
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#include <ansidecl.h>
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#include "ldgram.h"
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int ldgram_in_defsym;
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int ldgram_had_equals;
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int ldgram_in_script;
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int hex_mode;
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extern int fgetc();
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extern int yyparse();
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char *buystring();
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int lineno = 1;
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int old;
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#undef YY_INPUT
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#define YY_INPUT(buf,result,max_size) yy_input(buf, &result, max_size)
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#undef YY_FATAL_ERROR
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#define YY_FATAL_ERROR ;
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#define MAX_INCLUDE_DEPTH 10
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YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
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unsigned int include_stack_ptr = 0;
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/* FOUR STATES
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COMMAND on command line
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COMMENT in a C comment
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EXPRESSION definiatelyt in an expression
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SCRIPT definately in a script
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SOMEWHERE either EXPRESSION or SCRIPT
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*/
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#define RTOKEN(x) { yylval.token = x; return x; }
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%}
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%a 4000
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%o 5000
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FILENAMECHAR1 [_a-zA-Z\/\.\\]
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FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\]
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FILENAME {FILENAMECHAR}+
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WHITE [ \t\n]+
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%x COMMAND
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%x SCRIPT
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%x EXPRESSION
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%x COMMENT
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%x BOTH
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%%
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<COMMAND>"-defsym" { return OPTION_defsym; }
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<COMMAND>"-noinhibit_exec" { return OPTION_noinhibit_exec; }
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<COMMAND>"-noinhibit-exec" { return OPTION_noinhibit_exec; }
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<COMMAND>"-sort_common" { return OPTION_sort_common;}
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<COMMAND>"-sort-common" { return OPTION_sort_common;}
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<COMMAND>"-format" { return OPTION_format; }
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<COMMAND>"-n" { return OPTION_n; }
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<COMMAND>"-N" { return OPTION_N; }
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<COMMAND>"-r" { return OPTION_r; }
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<COMMAND>"-relax" { return OPTION_relax; }
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<COMMAND>"-i" { return OPTION_r; }
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<COMMAND>"-Ur" { return OPTION_Ur; }
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<COMMAND>"-o" { return OPTION_o; }
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<COMMAND>"-g" { return OPTION_g; }
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<COMMAND>"-e" { return OPTION_e; }
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<COMMAND>"-b" { return OPTION_b; }
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<COMMAND>"-dc" { return OPTION_dc; }
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<COMMAND>"-dp" { return OPTION_dp; }
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<COMMAND>"-d" { return OPTION_d; }
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<COMMAND>"-v" { return OPTION_v; }
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<COMMAND>"-V" { return OPTION_V; }
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<COMMAND>"-M" { return OPTION_M; }
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<COMMAND>"-Map" { return OPTION_Map;}
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<COMMAND>"-t" { return OPTION_t; }
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<COMMAND>"-X" { return OPTION_X; }
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<COMMAND>"-x" { return OPTION_x; }
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<COMMAND>"-c" { return OPTION_c; }
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<COMMAND>"-R" { return OPTION_R; }
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<COMMAND>"-u" { return OPTION_u; }
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<COMMAND>"-s" { return OPTION_s; }
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<COMMAND>"-S" { return OPTION_S; }
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<COMMAND>"-Bstat" { return OPTION_Bstatic; }
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<COMMAND>"-B"{FILENAME} { /* Ignored */ }
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<COMMAND>"-l"{FILENAME} {
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yylval.name = buystring(yytext+2);
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return OPTION_l;
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}
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<COMMAND>"-L"{FILENAME} {
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yylval.name = buystring(yytext+2);
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return OPTION_L;
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}
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<COMMAND>"-Ttext" {
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yylval.name = ".text";
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return OPTION_Texp;
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}
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<COMMAND>"-Tdata" {
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yylval.name = ".data";
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return OPTION_Texp;
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}
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<COMMAND>"-Tbss" {
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yylval.name = ".bss";
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return OPTION_Texp;
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}
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<COMMAND>"-O"{FILENAME} {
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yylval.name = buystring(yytext+2);
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return OPTION_Texp;
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}
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<COMMAND>"-T"{FILENAME} {
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yylval.name = buystring(yytext+2);
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return OPTION_Tfile;
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}
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<COMMAND>"-T" {
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return OPTION_T;
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}
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<COMMAND>"-F"{FILENAME} {
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return OPTION_F;
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}
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<COMMAND>"-F" {
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return OPTION_F;
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}
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<COMMAND>"-A"{FILENAME} {
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yylval.name = buystring(yytext+2);
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return OPTION_Aarch;
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}
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<BOTH,EXPRESSION>"0x"?([0-9A-Fa-f])+(M|K|m|k)? {
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yylval.integer = strtol(yytext,0,hex_mode);
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if (yytext[yyleng-1]=='M'
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|| yytext[yyleng-1] == 'm') {
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yylval.integer *= 1024*1024;
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}
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if (yytext[yyleng-1]=='K'
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|| yytext[yyleng-1]=='k') {
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yylval.integer *= 1024;
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}
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return INT;
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}
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<BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');}
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<BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');}
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<BOTH,SCRIPT,EXPRESSION>"<<=" { RTOKEN(LSHIFTEQ);}
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<BOTH,SCRIPT,EXPRESSION>">>=" { RTOKEN(RSHIFTEQ);}
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<BOTH,SCRIPT,EXPRESSION>"||" { RTOKEN(OROR);}
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<BOTH,SCRIPT,EXPRESSION>"==" { RTOKEN(EQ);}
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<BOTH,SCRIPT,EXPRESSION>"!=" { RTOKEN(NE);}
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<BOTH,SCRIPT,EXPRESSION>">=" { RTOKEN(GE);}
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<BOTH,SCRIPT,EXPRESSION>"<=" { RTOKEN(LE);}
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<BOTH,SCRIPT,EXPRESSION>"<<" { RTOKEN(LSHIFT);}
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<BOTH,SCRIPT,EXPRESSION>">>" { RTOKEN(RSHIFT);}
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<BOTH,SCRIPT,EXPRESSION>"+=" { RTOKEN(PLUSEQ);}
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<BOTH,SCRIPT,EXPRESSION>"-=" { RTOKEN(MINUSEQ);}
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<BOTH,SCRIPT,EXPRESSION>"*=" { RTOKEN(MULTEQ);}
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<BOTH,SCRIPT,EXPRESSION>"/=" { RTOKEN(DIVEQ);}
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<BOTH,SCRIPT,EXPRESSION>"&=" { RTOKEN(ANDEQ);}
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<BOTH,SCRIPT,EXPRESSION>"|=" { RTOKEN(OREQ);}
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<BOTH,SCRIPT,EXPRESSION>"&&" { RTOKEN(ANDAND);}
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<BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');}
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<BOTH,SCRIPT,EXPRESSION>"," { RTOKEN(',');}
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<BOTH,SCRIPT,EXPRESSION>"&" { RTOKEN('&');}
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<BOTH,SCRIPT,EXPRESSION>"|" { RTOKEN('|');}
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<BOTH,SCRIPT,EXPRESSION>"~" { RTOKEN('~');}
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<BOTH,SCRIPT,EXPRESSION>"!" { RTOKEN('!');}
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<BOTH,SCRIPT,EXPRESSION>"?" { RTOKEN('?');}
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<BOTH,SCRIPT,EXPRESSION>"*" { RTOKEN('*');}
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<BOTH,SCRIPT,EXPRESSION>"+" { RTOKEN('+');}
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<BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');}
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<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
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<BOTH,SCRIPT,EXPRESSION>"%" { RTOKEN('%');}
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<BOTH,SCRIPT,EXPRESSION>"<" { RTOKEN('<');}
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<BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');}
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<BOTH,SCRIPT,EXPRESSION>"=" { RTOKEN('=');}
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<BOTH,SCRIPT,EXPRESSION>"}" { RTOKEN('}') ; }
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<BOTH,SCRIPT,EXPRESSION>"{" { RTOKEN('{'); }
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<BOTH,SCRIPT,EXPRESSION>")" { RTOKEN(')');}
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<BOTH,SCRIPT,EXPRESSION>"(" { RTOKEN('(');}
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<BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');}
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<BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');}
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<BOTH,SCRIPT,EXPRESSION>":" { RTOKEN(':'); }
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<BOTH,SCRIPT,EXPRESSION>";" { RTOKEN(';');}
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<BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');}
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<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
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<BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);}
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<BOTH,SCRIPT>"ORIGIN" { RTOKEN(ORIGIN);}
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<BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);}
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<BOTH,SCRIPT>"LENGTH" { RTOKEN(LENGTH);}
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<EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);}
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<EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);}
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<BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);}
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<EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);}
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<EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);}
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<EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);}
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<BOTH,SCRIPT>"MAP" { RTOKEN(MAP);}
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<EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);}
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<BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);}
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<BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);}
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<BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);}
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<BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);}
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<BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);}
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<BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);}
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<BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);}
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<BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);}
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<BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);}
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<BOTH,SCRIPT>"FILL" { RTOKEN(FILL);}
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<BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);}
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<BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);}
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<BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);}
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<BOTH,SCRIPT>"HLL" { RTOKEN(HLL);}
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<BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);}
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<BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);}
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<BOTH,SCRIPT>"LONG" { RTOKEN( LONG);}
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<BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);}
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<BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);}
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<BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);}
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<BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);}
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<BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);}
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<BOTH,SCRIPT>"COPY" { RTOKEN(COPY);}
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<BOTH,SCRIPT>"INFO" { RTOKEN(INFO);}
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<BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);}
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<BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);}
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<BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);}
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<BOTH,SCRIPT>"l" { RTOKEN( LENGTH);}
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<BOTH,SCRIPT>"len" { RTOKEN( LENGTH);}
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<BOTH,EXPRESSION>{FILENAMECHAR1}{FILENAMECHAR}* {
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yylval.name = buystring(yytext);
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return NAME;
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}
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<SCRIPT,COMMAND>{FILENAMECHAR}* { yylval.name = buystring(yytext);
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return NAME;
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}
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<EXPRESSION,BOTH,COMMAND,SCRIPT>"\""[^\"]*"\"" {
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/* No matter the state, quotes
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give what's inside */
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yylval.name = buystring(yytext+1);
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yylval.name[yyleng-2] = 0;
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return NAME;
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}
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<BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;}
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<COMMAND,BOTH,SCRIPT,EXPRESSION>[ \t]
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"/*" { old = INITIAL; BEGIN(COMMENT); }
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<COMMAND>"/*" { old = COMMAND; BEGIN(COMMENT); }
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<BOTH>"/*" { old =BOTH; BEGIN(COMMENT); }
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<SCRIPT>"/*" { old = EXPRESSION; BEGIN(COMMENT); }
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<EXPRESSION>"/*" { old = SCRIPT; BEGIN(COMMENT); }
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"/*" { old = INITIAL; BEGIN(COMMENT); }
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<COMMENT>[^*\\n]*
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<COMMENT>"*"+[^*/\\n]*
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<COMMENT>\\n { ++lineno;}
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<COMMENT>"*"+"/" { BEGIN(old); }
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<<EOF>> {
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include_stack_ptr--;
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if (include_stack_ptr == 0)
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{
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yyterminate();
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}
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else
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{
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yy_switch_to_buffer(include_stack[include_stack_ptr]);
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}
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BEGIN(COMMAND);
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return END;
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}
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%%
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void
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DEFUN(lex_push_file,(file),
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FILE *file)
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{
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if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
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{
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einfo("%F:includes nested too deeply");
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}
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include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER;
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yyin = file;
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yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
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BEGIN(SCRIPT);
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}
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YY_BUFFER_STATE
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DEFUN(yy_create_string_buffer,(string, size),
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CONST char *string AND
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int size )
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{
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YY_BUFFER_STATE b;
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b = (YY_BUFFER_STATE) malloc( sizeof( struct yy_buffer_state ) );
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b->yy_input_file = 0;
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if ( ! b )
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YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
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b->yy_buf_size = size;
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/* yy_ch_buf has to be 2 characters longer than the size given because
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* we need to put in 2 end-of-buffer characters.
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*/
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b->yy_ch_buf = (YY_CHAR *) malloc( (unsigned) (b->yy_buf_size + 3) );
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if ( ! b->yy_ch_buf )
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YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
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b->yy_ch_buf[0] = '\n';
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strcpy(b->yy_ch_buf+1, string);
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b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR;
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b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR;
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b->yy_n_chars = size+1;
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b->yy_buf_pos = &b->yy_ch_buf[1];
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b->yy_eof_status = EOF_NOT_SEEN;
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return ( b );
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}
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void
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DEFUN(lex_redirect,( string),
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CONST char *string)
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{
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YY_BUFFER_STATE tmp;
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int len = strlen(string);
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yy_init = 0 ;
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if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
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{
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einfo("%F: macros nested too deeply");
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}
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include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER;
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tmp = yy_create_string_buffer(string, len);
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yy_switch_to_buffer(tmp);
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BEGIN(COMMAND);
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yyout = stdout;
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}
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int state_stack[20];
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int *state_stack_p = state_stack;
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void
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DEFUN_VOID(ldlex_script)
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{
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*(state_stack_p)++ = yy_start;
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BEGIN(SCRIPT);
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}
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void
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DEFUN_VOID(ldlex_expression)
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{
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*(state_stack_p)++ = yy_start;
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BEGIN(EXPRESSION);
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}
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void
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DEFUN_VOID(ldlex_both)
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{
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*(state_stack_p)++ = yy_start;
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BEGIN(BOTH);
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}
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void
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DEFUN_VOID(ldlex_command)
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{
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*(state_stack_p)++ = yy_start;
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BEGIN(COMMAND);
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}
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void
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DEFUN_VOID(ldlex_popstate)
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{
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yy_start = *(--state_stack_p);
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}
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yy_input(buf, result, max_size)
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char *buf;
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int *result;
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int max_size;
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{
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*result = 0;
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if (yy_current_buffer->yy_input_file)
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{
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if (yyin)
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if ( (*result = read( fileno(yyin), (char *) buf, max_size )) < 0 )
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YY_FATAL_ERROR( "read() in flex scanner failed" );
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}
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}
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