586 lines
15 KiB
Plaintext
586 lines
15 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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unsigned int lineno = 1;
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int old;
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static comment();
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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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char *file_name_stack[MAX_INCLUDE_DEPTH];
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unsigned int include_stack_ptr = 0;
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/* 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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MRI in an MRI 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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CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~]
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CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~]
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FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~]
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SYMBOLCHARN [_a-zA-Z\/\.\\0-9]
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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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NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
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%s COMMAND
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%s SCRIPT
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%s EXPRESSION
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%s COMMENT
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%s BOTH
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%s DEFSYMEXP
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%s MRI
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%%
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<BOTH,SCRIPT,EXPRESSION,COMMAND>"/*" { comment(); }
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<DEFSYMEXP>"-" { RTOKEN('-');}
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<DEFSYMEXP>"+" { RTOKEN('+');}
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<DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = buystring(yytext); return NAME; }
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<DEFSYMEXP>[ \t] { RTOKEN(DEFSYMEND); }
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<DEFSYMEXP>"=" { RTOKEN('='); }
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<COMMAND>"-defsym"{WHITE}* { 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>"-m"{FILENAME} { return OPTION_memul; }
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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>"-y"{FILENAME} {
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yylval.name = buystring(yytext+2);
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return OPTION_y;
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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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<COMMAND>"-retain-symbols-file" { return OPTION_RETAIN_SYMBOLS_FILE; }
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<COMMAND>"-EB" {
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return OPTION_EB;
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}
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<COMMAND>"-EL" {
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return OPTION_EL;
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}
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<COMMAND>"-G" {
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return OPTION_G;
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}
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<COMMAND>"-G"([0-9])+ {
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yylval.integer = atoi (yytext + 2);
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return OPTION_Gval;
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}
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<MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
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yylval.integer = strtoul(yytext+1, 0,16);
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return INT;
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}
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<MRI,EXPRESSION>([0-9A-Fa-f])+(H|X|B|O|D) {
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int base ;
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switch (yytext[yyleng-1]) {
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case 'X':
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case 'H':
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base = 16;
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break;
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case 'O':
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base = 8;
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break;
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case 'B':
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base = 2;
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break;
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default:
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base = 10;
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}
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yylval.integer = strtoul(yytext+1, 0, base);
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return INT;
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}
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<SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>"$"?"0x"?([0-9A-Fa-f])+(M|K|m|k)? {
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yylval.integer = strtoul(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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<MRI,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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<MRI,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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<EXPRESSION,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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<EXPRESSION,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,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);}
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<EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);}
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<MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); }
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<MRI>"*".* { /* Mri comment line */ }
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<MRI>"END" { RTOKEN(ENDWORD); }
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<MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);}
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<MRI>"ALIGN" { RTOKEN(ALIGN_K);}
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<MRI>"CHIP" { RTOKEN(CHIP); }
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<MRI>"BASE" { RTOKEN(BASE); }
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<MRI>"ALIAS" { RTOKEN(ALIAS); }
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<MRI>"TRUNCATE" { RTOKEN(TRUNCATE); }
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<MRI>"LOAD" { RTOKEN(LOAD); }
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<MRI>"PUBLIC" { RTOKEN(PUBLIC); }
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<MRI>"ORDER" { RTOKEN(ORDER); }
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<MRI>"NAME" { RTOKEN(NAMEWORD); }
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<MRI>"FORMAT" { RTOKEN(FORMAT); }
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<MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
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<MRI>"SECT" { RTOKEN(SECT); }
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<EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); }
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<MRI>"end" { RTOKEN(ENDWORD); }
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<MRI>"chip" { RTOKEN(CHIP); }
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<MRI>"load" { RTOKEN(LOAD); }
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<MRI>"order" { RTOKEN(ORDER); }
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<MRI>"name" { RTOKEN(NAMEWORD); }
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<MRI>"format" { RTOKEN(FORMAT); }
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<MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
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<MRI>"sect" { RTOKEN(SECT); }
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<EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); }
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<COMMAND>{CMDFILENAMECHAR1}{CMDFILENAMECHAR}* {
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yylval.name = buystring(yytext);
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return NAME;
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}
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<MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
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/* Filename without commas, needed to parse mri stuff */
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yylval.name = buystring(yytext);
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return NAME;
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}
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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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<MRI,COMMAND,BOTH,SCRIPT,EXPRESSION>[ \t]
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<<EOF>> {
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extern char *ldfile_input_filename;
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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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if (include_stack_ptr==1)
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{
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BEGIN(COMMAND);
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}
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else
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{
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BEGIN(SCRIPT);
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ldfile_input_filename = file_name_stack[include_stack_ptr-1];
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}
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return END;
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}
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%%
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void
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lex_push_file (file, name)
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FILE *file;
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char *name;
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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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file_name_stack[include_stack_ptr] = name;
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include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
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include_stack_ptr++;
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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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yy_create_string_buffer (string, size)
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CONST char *string;
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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 ) );
|
|
b->yy_input_file = 0;
|
|
|
|
if ( ! b )
|
|
YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
|
|
|
|
b->yy_buf_size = size;
|
|
|
|
/* yy_ch_buf has to be 2 characters longer than the size given because
|
|
* we need to put in 2 end-of-buffer characters.
|
|
*/
|
|
b->yy_ch_buf = (YY_CHAR *) malloc( (unsigned) (b->yy_buf_size + 3) );
|
|
|
|
if ( ! b->yy_ch_buf )
|
|
YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
|
|
|
|
|
|
b->yy_ch_buf[0] = '\n';
|
|
strcpy(b->yy_ch_buf+1, string);
|
|
b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR;
|
|
b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR;
|
|
b->yy_n_chars = size+1;
|
|
b->yy_buf_pos = &b->yy_ch_buf[1];
|
|
|
|
b->yy_eof_status = EOF_NOT_SEEN;
|
|
|
|
return ( b );
|
|
}
|
|
|
|
|
|
|
|
void
|
|
lex_redirect (string)
|
|
CONST char *string;
|
|
{
|
|
YY_BUFFER_STATE tmp;
|
|
|
|
int len = strlen(string);
|
|
yy_init = 0 ;
|
|
if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
|
|
{
|
|
einfo("%F: macros nested too deeply");
|
|
}
|
|
file_name_stack[include_stack_ptr] = "redirect";
|
|
include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
|
|
include_stack_ptr++;
|
|
tmp = yy_create_string_buffer(string, len);
|
|
|
|
yy_switch_to_buffer(tmp);
|
|
BEGIN(COMMAND);
|
|
yyout = stdout;
|
|
}
|
|
|
|
int state_stack[20];
|
|
int *state_stack_p = state_stack;
|
|
|
|
void
|
|
ldlex_script ()
|
|
{
|
|
*(state_stack_p)++ = yy_start;
|
|
|
|
BEGIN(SCRIPT);
|
|
}
|
|
|
|
|
|
void
|
|
ldlex_mri_script ()
|
|
{
|
|
*(state_stack_p)++ = yy_start;
|
|
BEGIN(MRI);
|
|
}
|
|
|
|
void
|
|
ldlex_defsym ()
|
|
{
|
|
*(state_stack_p)++ = yy_start;
|
|
BEGIN(DEFSYMEXP);
|
|
}
|
|
|
|
void
|
|
ldlex_expression ()
|
|
{
|
|
*(state_stack_p)++ = yy_start;
|
|
BEGIN(EXPRESSION);
|
|
|
|
}
|
|
void
|
|
ldlex_both ()
|
|
{
|
|
*(state_stack_p)++ = yy_start;
|
|
BEGIN(BOTH);
|
|
}
|
|
void
|
|
ldlex_command ()
|
|
{
|
|
*(state_stack_p)++ = yy_start;
|
|
BEGIN(COMMAND);
|
|
}
|
|
|
|
void
|
|
ldlex_popstate ()
|
|
{
|
|
yy_start = *(--state_stack_p);
|
|
}
|
|
|
|
yy_input(buf, result, max_size)
|
|
char *buf;
|
|
int *result;
|
|
int max_size;
|
|
{
|
|
*result = 0;
|
|
if (yy_current_buffer->yy_input_file)
|
|
{
|
|
if (yyin)
|
|
if ( (*result = read( fileno(yyin), (char *) buf, max_size )) < 0 )
|
|
YY_FATAL_ERROR( "read() in flex scanner failed" );
|
|
}
|
|
}
|
|
|
|
static
|
|
comment()
|
|
{
|
|
int c;
|
|
while (1)
|
|
{
|
|
c = input();
|
|
while (c !='*' && c != EOF)
|
|
{
|
|
if (c == '\n') lineno++;
|
|
c = input();
|
|
}
|
|
|
|
|
|
if (c == '*')
|
|
{
|
|
c = input();
|
|
while ( c == '*')
|
|
c = input();
|
|
if ( c == '/' )
|
|
break; /* found the end */
|
|
}
|
|
|
|
if ( c == EOF )
|
|
{
|
|
einfo( "%F%P :EOF in comment");
|
|
break;
|
|
}
|
|
}
|
|
}
|