%{
/* Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
GLD is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
GLD is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GLD; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/*
* $Id$
*
* $Log$
* Revision 1.1 1991/03/21 21:28:50 gumby
* Initial revision
*
* Revision 1.3 1991/03/16 22:27:24 rich
* fish
*
* Revision 1.2 1991/03/15 18:45:55 rich
* foo
*
* Revision 1.1 1991/03/13 00:48:27 chrisb
* Initial revision
*
* Revision 1.6 1991/03/10 09:31:32 rich
* Modified Files:
* Makefile config.h ld-emul.c ld-emul.h ld-gld.c ld-gld960.c
* ld-lnk960.c ld.h lddigest.c ldexp.c ldexp.h ldfile.c ldfile.h
* ldgram.y ldinfo.h ldlang.c ldlang.h ldlex.h ldlex.l ldmain.c
* ldmain.h ldmisc.c ldmisc.h ldsym.c ldsym.h ldversion.c
* ldversion.h ldwarn.h ldwrite.c ldwrite.h y.tab.h
*
* As of this round of changes, ld now builds on all hosts of (Intel960)
* interest and copy passes my copy test on big endian hosts again.
*
* Revision 1.5 1991/03/09 03:25:49 sac
* Can now parse the -Ur flag
*
* Revision 1.4 1991/03/06 02:26:04 sac
* Added support for constructor sections.
* Remove parsing ambiguity.
* Lint
*
* Revision 1.3 1991/02/22 17:15:14 sac
* Added RCS keywords and copyrights
*
*/
/*SUPPRESS 529*/
/*SUPPRESS 26*/
/*SUPPRESS 29*/
#define LEXDEBUG
#include "sysdep.h"
#include "bfd.h"
#include <ctype.h>
#include "ldlex.h"
#include "ld.h"
#include "ldexp.h"
#include "ldgram.tab.h"
#include "ldmisc.h"
#undef input
#undef unput
#define input lex_input
#define unput lex_unput
int debug;
extern boolean ldgram_want_filename;
extern boolean ldgram_mustbe_filename;
extern boolean ldgram_mustbe_symbolname;
static char *command_line;
extern int fgetc();
extern int yyparse();
typedef struct {
char *name;
int value;
} keyword_type;
#define RTOKEN(x) { yylval.token = x; return x; }
keyword_type keywords[] =
{
"MEMORY",MEMORY,
"ORIGIN",ORIGIN,
"BLOCK",BLOCK,
"LENGTH",LENGTH,
"ALIGN",ALIGN_K,
"SUBSECTION_ALIGN",SUBSECTION_ALIGN,
"ADDR",ADDR,
"ENTRY",ENTRY,
"NEXT",NEXT,
"MAP",MAP,
"SIZEOF",SIZEOF,
"TARGET",TARGET_K,
"SEARCH_DIR",SEARCH_DIR,
"OUTPUT",OUTPUT,
"INPUT",INPUT,
"DEFINED",DEFINED,
"CREATE_OBJECT_SYMBOLS",CREATE_OBJECT_SYMBOLS,
"SECTIONS",SECTIONS,
"FILL",FILL,
"STARTUP",STARTUP,
"HLL",HLL,
"SYSLIB",SYSLIB,
"FLOAT",FLOAT,
"LONG", LONG,
"SHORT", SHORT,
"BYTE", BYTE,
"NOFLOAT",NOFLOAT,
"o",ORIGIN,
"org",ORIGIN,
"l", LENGTH,
"len", LENGTH,
0,0};
unsigned int lineno;
extern boolean hex_mode;
FILE *ldlex_input_stack;
static unsigned int have_pushback;
#define NPUSHBACK 10
int pushback[NPUSHBACK];
int thischar;
extern char *ldfile_input_filename;
int
lex_input()
{
/*
When we know that the next token must be a filename we force the
input routine to return a '#' character, which will cause the special
filname regexp to match the following chars even if they don't look
much like a filename to any sane person.
*/
if (ldgram_mustbe_filename) {
ldgram_mustbe_filename = false;
return '#';
}
if (have_pushback > 0)
{
have_pushback --;
return thischar = pushback[have_pushback];
}
if (ldlex_input_stack) {
thischar = fgetc(ldlex_input_stack);
if (thischar == EOF) {
fclose(ldlex_input_stack);
ldlex_input_stack = (FILE *)NULL;
ldfile_input_filename = (char *)NULL;
thischar = lex_input();
}
}
else if (command_line && *command_line) {
thischar = *(command_line++);
}
else thischar = 0;
if(thischar == '\t') thischar = ' ';
return thischar ;
}
void
lex_unput(c)
int c;
{
if (have_pushback > NPUSHBACK) {
info("%F%P Too many pushbacks\n");
}
pushback[have_pushback] = c;
have_pushback ++;
}
int
yywrap()
{ return 1; }
/*VARARGS*/
void
allprint(x)
int x;
{
fprintf(yyout,"%d",x);
}
void
sprint(x)
char *x;
{
fprintf(yyout,"%s",x);
}
int thischar;
void parse_line(arg)
char *arg;
{
command_line = arg;
have_pushback = 0;
yyparse();
}
void
parse_args(ac, av)
int ac;
char **av;
{
char *p;
int i;
size_t size = 0;
char *dst;
debug = 1;
for (i= 1; i < ac; i++) {
size += strlen(av[i]) + 2;
}
dst = p = (char *)ldmalloc(size + 2);
/* Put a space arount each option */
for (i =1; i < ac; i++) {
unsigned int s = strlen(av[i]);
*dst++ = ' ';
memcpy(dst, av[i], s);
dst[s] = ' ';
dst += s + 1;
}
*dst = 0;
parse_line(p);
free(p);
}
long number(text, base)
char *text;
int base;
{
unsigned long l = 0;
char *p;
for (p = text; *p != 0; p++) {
if (*p == 'K') {
l =l * 1024;
}
else if(*p== 'M') {
l =l * 1024 * 1024;
}
else {
l =l * base;
if (isdigit(*p)) {
l += *p - '0';
}
else if (islower(*p)) {
l += *p - 'a' + 10;
}
else {
l += *p - 'A' + 10;
}
}
}
return l;
}
%}
%a 4000
%o 5000
FILENAMECHAR [a-zA-Z0-9\/\.\-\_\+]
FILENAME {FILENAMECHAR}+
WHITE [ \t]+
%%
"\n" { lineno++; }
"\ -defsym" { return OPTION_defsym; }
"\ -noinhibit_exec" { return OPTION_noinhibit_exec; }
"\ -format" { return OPTION_format; }
"\ -n" { return OPTION_n; }
"\ -r" { return OPTION_r; }
"\ -Ur" { return OPTION_Ur; }
"\ -o" { return OPTION_o; }
"\ -g" { return OPTION_g; }
"\ -e" { return OPTION_e; }
"\ -b" { return OPTION_b; }
"\ -dc" { return OPTION_dc; }
"\ -dp" { return OPTION_dp; }
"\ -d" { return OPTION_d; }
"\ -v" { return OPTION_v; }
"\ -M" { return OPTION_M; }
"\ -t" { return OPTION_t; }
"\ -X" { return OPTION_X; }
"\ -x" { return OPTION_x; }
"\ -c" { return OPTION_c; }
"\ -s" { return OPTION_s; }
"\ -S" { return OPTION_S; }
"\ -l"{FILENAME} {
yylval.name = buystring(yytext+3);
return OPTION_l;
}
"\ -L"{FILENAME} {
yylval.name = buystring(yytext+3);
return OPTION_L;
}
"\ -Ttext" {
yylval.name = ".text";
return OPTION_Texp;
}
"\ -Tdata" {
yylval.name = ".data";
return OPTION_Texp;
}
"\ -Tbss" {
yylval.name = ".bss";
return OPTION_Texp;
}
"\ -T"{FILENAME} {
yylval.name = buystring(yytext+3);
return OPTION_Tfile;
}
"\ -T" {
return OPTION_T;
}
"\ -A"{FILENAME} {
yylval.name = buystring(yytext+3);
return OPTION_Aarch;
}
" " { }
"<<=" { RTOKEN(LSHIFTEQ);}
">>=" { RTOKEN(RSHIFTEQ);}
"||" { RTOKEN(OROR);}
"==" { RTOKEN(EQ);}
"!=" { RTOKEN(NE);}
">=" { RTOKEN(GE);}
"<=" { RTOKEN(LE);}
"<<" { RTOKEN(LSHIFT);}
">>" { RTOKEN(RSHIFT);}
"+=" { RTOKEN(PLUSEQ);}
"-=" { RTOKEN(MINUSEQ);}
"*=" { RTOKEN(MULTEQ);}
"/=" { RTOKEN(DIVEQ);}
"&=" { RTOKEN(ANDEQ);}
"|=" { RTOKEN(OREQ);}
"&&" { RTOKEN(ANDAND);}
">" { RTOKEN('>');}
"," { RTOKEN(',');}
"&" { RTOKEN('&');}
"|" { RTOKEN('|');}
"~" { RTOKEN('~');}
"!" { RTOKEN('!');}
"?" { RTOKEN('?');}
"*" { RTOKEN('*');}
"%" { RTOKEN('%');}
"<" { RTOKEN('<');}
"+" { RTOKEN('+');}
">" { RTOKEN('>');}
"}" { RTOKEN('}') ; }
"{" { RTOKEN('{'); }
")" { RTOKEN(')');}
"(" { RTOKEN('(');}
"]" { RTOKEN(']');}
"[" { RTOKEN('[');}
":" { RTOKEN(':'); }
";" { RTOKEN(';');}
"-" { RTOKEN('-');}
"=" { RTOKEN('=');}
"/*" {
while (1) {
int ch;
ch = input();
while (ch != '*') {
if (ch == '\n') {lineno++; }
ch = input();
}
if (input() == '/') {
break;
}
unput(yytext[yyleng-1]);
}
}
"\""[^\"]*"\"" {
yylval.name = buystring(yytext+1);
yylval.name[yyleng-2] = 0; /* Fry final quote */
return NAME;
}
[0][0-7KM]* {
yylval.integer = number(yytext+1, 8);
return INT;
}
[0-9]+[KM]? {
if (hex_mode == true) {
yylval.integer = number(yytext, 16);
}
else {
yylval.integer = number(yytext, 10);
}
return INT;
}
0[Xx][0-9a-fA-FKM]+ {
yylval.integer = number(yytext+2,16);
return INT;
}
"\#"{WHITE}*{FILENAMECHAR}+ {
char *p = yytext+1;
while(*p ==' ' || *p == '\t') p++;
yylval.name = buystring(p);
return NAME;
}
{FILENAMECHAR} {
int ch;
keyword_type *k;
if (yytext[0] == '/' && ldgram_mustbe_symbolname)
{ RTOKEN('/');}
ch = input();
while (true) {
if (isalpha(ch) || isdigit(ch) || ch == '.' || ch == '_') {
yytext[yyleng++] = ch;
}
else if (ch == '-' && ldgram_want_filename == true) {
yytext[yyleng++] = ch;
}
else if (ch == '+' && ldgram_want_filename == true) {
yytext[yyleng++] = ch;
}
else if (ch == '/' && ldgram_want_filename == true) {
yytext[yyleng++] = ch;
}
else break;
ch = input();
}
yytext[yyleng] = 0;
unput(ch);
for(k = keywords; k ->name != (char *)NULL; k++) {
if (strcmp(k->name, yytext)==0) {
yylval.token = k->value;
return k->value;
}
}
yylval.name = buystring(yytext);
return NAME;
}
%%