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%{
/* 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 2, 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. */
/*
This was written by steve chamberlain
sac@cygnus.com
*/
#include <ansidecl.h>
#include "bfd.h"
#include "ldgram.h"
int ldgram_in_defsym;
extern int ldgram_had_equals;
extern int ldgram_in_script;
int hex_mode;
extern int fgetc();
extern int yyparse();
char *buystring();
unsigned int lineno = 1;
int old;
static comment();
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) yy_input(buf, &result, max_size)
#undef YY_FATAL_ERROR
#define YY_FATAL_ERROR ;
#define MAX_INCLUDE_DEPTH 10
YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
char *file_name_stack[MAX_INCLUDE_DEPTH];
unsigned int include_stack_ptr = 0;
/* STATES
COMMAND on command line
COMMENT in a C comment
EXPRESSION definiatelyt in an expression
SCRIPT definately in a script
SOMEWHERE either EXPRESSION or SCRIPT
MRI in an MRI script
*/
#define RTOKEN(x) { yylval.token = x; return x; }
%}
%a 4000
%o 5000
CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~]
CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~]
FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~]
SYMBOLCHARN [_a-zA-Z\/\.\\0-9]
FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
FILENAME {FILENAMECHAR}+
WHITE [ \t\n]+
NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
%s COMMAND
%s SCRIPT
%s EXPRESSION
%s COMMENT
%s BOTH
%s DEFSYMEXP
%s MRI
%%
<BOTH,SCRIPT,EXPRESSION,COMMAND>"/*" { comment(); }
<DEFSYMEXP>"-" { RTOKEN('-');}
<DEFSYMEXP>"+" { RTOKEN('+');}
<DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = buystring(yytext); return NAME; }
<DEFSYMEXP>[ \t] { RTOKEN(DEFSYMEND); }
<DEFSYMEXP>"=" { RTOKEN('='); }
<COMMAND>"--help" { return OPTION_help; }
<COMMAND>"--version" { return OPTION_version; }
<COMMAND>"-defsym"{WHITE}* { return OPTION_defsym; }
<COMMAND>"-format" { return OPTION_format; }
<COMMAND>"-noinhibit-exec" { return OPTION_noinhibit_exec; }
<COMMAND>"-noinhibit_exec" { return OPTION_noinhibit_exec; }
<COMMAND>"-oformat" { return OPTION_oformat; }
<COMMAND>"-sort-common" { return OPTION_sort_common;}
<COMMAND>"-sort_common" { return OPTION_sort_common;}
<COMMAND>"-warn-common" { return OPTION_warn_common;}
<COMMAND>"-n" { return OPTION_n; }
<COMMAND>"-N" { return OPTION_N; }
<COMMAND>"-r" { return OPTION_r; }
<COMMAND>"-relax" { return OPTION_relax; }
<COMMAND>"-i" { return OPTION_r; }
<COMMAND>"-Ur" { return OPTION_Ur; }
<COMMAND>"-o" { return OPTION_o; }
<COMMAND>"-g" { return OPTION_g; }
<COMMAND>"-e" { return OPTION_e; }
<COMMAND>"-b" { return OPTION_b; }
<COMMAND>"-dc" { return OPTION_dc; }
<COMMAND>"-dp" { return OPTION_dp; }
<COMMAND>"-d" { return OPTION_d; }
<COMMAND>"-v" { return OPTION_v; }
<COMMAND>"-V" { return OPTION_V; }
<COMMAND>"-m" { return OPTION_m; }
<COMMAND>"-m"{FILENAME} { return OPTION_memul; }
<COMMAND>"-M" { return OPTION_M; }
<COMMAND>"-Map" { return OPTION_Map;}
<COMMAND>"-t" { return OPTION_t; }
<COMMAND>"-X" { return OPTION_X; }
<COMMAND>"-x" { return OPTION_x; }
<COMMAND>"-c" { return OPTION_c; }
<COMMAND>"-R" { return OPTION_R; }
<COMMAND>"-u" { return OPTION_u; }
<COMMAND>"-s" { return OPTION_s; }
<COMMAND>"-S" { return OPTION_S; }
<COMMAND>"-Bstat" { return OPTION_Bstatic; }
<COMMAND>"-B"{FILENAME} { /* Ignored */ }
<COMMAND>"-l"{FILENAME} {
yylval.name = buystring(yytext+2);
return OPTION_l;
}
<COMMAND>"-L"{FILENAME} {
yylval.name = buystring(yytext+2);
return OPTION_Lfile;
}
<COMMAND>"-L" { return OPTION_L; }
<COMMAND>"-Ttext" {
yylval.name = ".text";
return OPTION_Texp;
}
<COMMAND>"-Tdata" {
yylval.name = ".data";
return OPTION_Texp;
}
<COMMAND>"-Tbss" {
yylval.name = ".bss";
return OPTION_Texp;
}
<COMMAND>"-O"{FILENAME} {
yylval.name = buystring(yytext+2);
return OPTION_Texp;
}
<COMMAND>"-T"{FILENAME} {
yylval.name = buystring(yytext+2);
return OPTION_Tfile;
}
<COMMAND>"-T" {
return OPTION_T;
}
<COMMAND>"-F"{FILENAME} {
return OPTION_F;
}
<COMMAND>"-F" {
return OPTION_F;
}
<COMMAND>"-y"{FILENAME} {
yylval.name = buystring(yytext+2);
return OPTION_y;
}
<COMMAND>"-A"{FILENAME} {
yylval.name = buystring(yytext+2);
return OPTION_Aarch;
}
<COMMAND>"-retain-symbols-file" { return OPTION_RETAIN_SYMBOLS_FILE; }
<COMMAND>"-EB" {
return OPTION_EB;
}
<COMMAND>"-EL" {
return OPTION_EL;
}
<COMMAND>"-G" {
return OPTION_G;
}
<COMMAND>"-G"([0-9])+ {
yylval.integer = atoi (yytext + 2);
return OPTION_Gval;
}
<COMMAND>"-Qy" { return OPTION_Qy; }
<COMMAND>"-dn" { return OPTION_dn; }
<COMMAND>"-Y" { return OPTION_Y; }
<COMMAND>"-YP,"{FILENAME} {
yylval.name = buystring (yytext+4);
return OPTION_YP;
}
<MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
yylval.integer = strtoul(yytext+1, 0,16);
return INT;
}
<MRI,EXPRESSION>([0-9A-Fa-f])+(H|X|B|O|D) {
int base ;
switch (yytext[yyleng-1]) {
case 'X':
case 'H':
base = 16;
break;
case 'O':
base = 8;
break;
case 'B':
base = 2;
break;
default:
base = 10;
}
yylval.integer = strtoul(yytext+1, 0, base);
return INT;
}
<SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>"$"?"0x"?([0-9A-Fa-f])+(M|K|m|k)? {
yylval.integer = strtoul(yytext,0,hex_mode);
if (yytext[yyleng-1]=='M'
|| yytext[yyleng-1] == 'm') {
yylval.integer *= 1024*1024;
}
if (yytext[yyleng-1]=='K'
|| yytext[yyleng-1]=='k') {
yylval.integer *= 1024;
}
return INT;
}
<BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');}
<BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');}
<BOTH,SCRIPT,EXPRESSION>"<<=" { RTOKEN(LSHIFTEQ);}
<BOTH,SCRIPT,EXPRESSION>">>=" { RTOKEN(RSHIFTEQ);}
<BOTH,SCRIPT,EXPRESSION>"||" { RTOKEN(OROR);}
<BOTH,SCRIPT,EXPRESSION>"==" { RTOKEN(EQ);}
<BOTH,SCRIPT,EXPRESSION>"!=" { RTOKEN(NE);}
<BOTH,SCRIPT,EXPRESSION>">=" { RTOKEN(GE);}
<BOTH,SCRIPT,EXPRESSION>"<=" { RTOKEN(LE);}
<BOTH,SCRIPT,EXPRESSION>"<<" { RTOKEN(LSHIFT);}
<BOTH,SCRIPT,EXPRESSION>">>" { RTOKEN(RSHIFT);}
<BOTH,SCRIPT,EXPRESSION>"+=" { RTOKEN(PLUSEQ);}
<BOTH,SCRIPT,EXPRESSION>"-=" { RTOKEN(MINUSEQ);}
<BOTH,SCRIPT,EXPRESSION>"*=" { RTOKEN(MULTEQ);}
<BOTH,SCRIPT,EXPRESSION>"/=" { RTOKEN(DIVEQ);}
<BOTH,SCRIPT,EXPRESSION>"&=" { RTOKEN(ANDEQ);}
<BOTH,SCRIPT,EXPRESSION>"|=" { RTOKEN(OREQ);}
<BOTH,SCRIPT,EXPRESSION>"&&" { RTOKEN(ANDAND);}
<BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');}
<MRI,BOTH,SCRIPT,EXPRESSION>"," { RTOKEN(',');}
<BOTH,SCRIPT,EXPRESSION>"&" { RTOKEN('&');}
<BOTH,SCRIPT,EXPRESSION>"|" { RTOKEN('|');}
<BOTH,SCRIPT,EXPRESSION>"~" { RTOKEN('~');}
<BOTH,SCRIPT,EXPRESSION>"!" { RTOKEN('!');}
<BOTH,SCRIPT,EXPRESSION>"?" { RTOKEN('?');}
<BOTH,SCRIPT,EXPRESSION>"*" { RTOKEN('*');}
<BOTH,SCRIPT,EXPRESSION>"+" { RTOKEN('+');}
<BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');}
<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
<BOTH,SCRIPT,EXPRESSION>"%" { RTOKEN('%');}
<BOTH,SCRIPT,EXPRESSION>"<" { RTOKEN('<');}
<BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');}
<MRI,BOTH,SCRIPT,EXPRESSION>"=" { RTOKEN('=');}
<BOTH,SCRIPT,EXPRESSION>"}" { RTOKEN('}') ; }
<BOTH,SCRIPT,EXPRESSION>"{" { RTOKEN('{'); }
<BOTH,SCRIPT,EXPRESSION>")" { RTOKEN(')');}
<BOTH,SCRIPT,EXPRESSION>"(" { RTOKEN('(');}
<BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');}
<BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');}
<BOTH,SCRIPT,EXPRESSION>":" { RTOKEN(':'); }
<BOTH,SCRIPT,EXPRESSION>";" { RTOKEN(';');}
<BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');}
<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
<BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);}
<BOTH,SCRIPT>"ORIGIN" { RTOKEN(ORIGIN);}
<BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);}
<BOTH,SCRIPT>"LENGTH" { RTOKEN(LENGTH);}
<EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);}
<EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);}
<BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);}
<EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);}
<EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);}
<EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);}
<BOTH,SCRIPT>"MAP" { RTOKEN(MAP);}
<EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);}
<BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);}
<BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);}
<BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);}
<BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);}
<EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);}
<BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);}
<BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);}
<BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);}
<BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);}
<BOTH,SCRIPT>"FILL" { RTOKEN(FILL);}
<BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);}
<BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);}
<BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);}
<BOTH,SCRIPT>"HLL" { RTOKEN(HLL);}
<BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);}
<BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);}
<BOTH,SCRIPT>"LONG" { RTOKEN( LONG);}
<BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);}
<BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);}
<BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);}
<EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);}
<BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);}
<BOTH,SCRIPT>"COPY" { RTOKEN(COPY);}
<BOTH,SCRIPT>"INFO" { RTOKEN(INFO);}
<BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);}
<BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);}
<BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);}
<BOTH,SCRIPT>"l" { RTOKEN( LENGTH);}
<BOTH,SCRIPT>"len" { RTOKEN( LENGTH);}
<BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);}
<EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);}
<MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); }
<MRI>"*".* { /* Mri comment line */ }
<MRI>"END" { RTOKEN(ENDWORD); }
<MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);}
<MRI>"ALIGN" { RTOKEN(ALIGN_K);}
<MRI>"CHIP" { RTOKEN(CHIP); }
<MRI>"BASE" { RTOKEN(BASE); }
<MRI>"ALIAS" { RTOKEN(ALIAS); }
<MRI>"TRUNCATE" { RTOKEN(TRUNCATE); }
<MRI>"LOAD" { RTOKEN(LOAD); }
<MRI>"PUBLIC" { RTOKEN(PUBLIC); }
<MRI>"ORDER" { RTOKEN(ORDER); }
<MRI>"NAME" { RTOKEN(NAMEWORD); }
<MRI>"FORMAT" { RTOKEN(FORMAT); }
<MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
<MRI>"SECT" { RTOKEN(SECT); }
<EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); }
<MRI>"end" { RTOKEN(ENDWORD); }
<MRI>"chip" { RTOKEN(CHIP); }
<MRI>"load" { RTOKEN(LOAD); }
<MRI>"order" { RTOKEN(ORDER); }
<MRI>"name" { RTOKEN(NAMEWORD); }
<MRI>"format" { RTOKEN(FORMAT); }
<MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
<MRI>"sect" { RTOKEN(SECT); }
<EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); }
<COMMAND>{CMDFILENAMECHAR1}{CMDFILENAMECHAR}* {
yylval.name = buystring(yytext);
return NAME;
}
<MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
/* Filename without commas, needed to parse mri stuff */
yylval.name = buystring(yytext);
return NAME;
}
<BOTH,EXPRESSION>{FILENAMECHAR1}{FILENAMECHAR}* {
yylval.name = buystring(yytext);
return NAME;
}
<SCRIPT,COMMAND>{FILENAMECHAR}* { yylval.name = buystring(yytext);
return NAME;
}
<EXPRESSION,BOTH,COMMAND,SCRIPT>"\""[^\"]*"\"" {
/* No matter the state, quotes
give what's inside */
yylval.name = buystring(yytext+1);
yylval.name[yyleng-2] = 0;
return NAME;
}
<BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;}
<MRI,COMMAND,BOTH,SCRIPT,EXPRESSION>[ \t]
<<EOF>> {
extern char *ldfile_input_filename;
include_stack_ptr--;
if (include_stack_ptr == 0)
{
yyterminate();
}
else
{
yy_switch_to_buffer(include_stack[include_stack_ptr]);
}
if (include_stack_ptr==1)
{
BEGIN(COMMAND);
}
else
{
BEGIN(SCRIPT);
ldfile_input_filename = file_name_stack[include_stack_ptr-1];
}
return END;
}
%%
void
lex_push_file (file, name)
FILE *file;
char *name;
{
if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
{
einfo("%F:includes nested too deeply\n");
}
file_name_stack[include_stack_ptr] = name;
include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
include_stack_ptr++;
yyin = file;
yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
BEGIN(SCRIPT);
}
YY_BUFFER_STATE
yy_create_string_buffer (string, size)
CONST char *string;
int size;
{
YY_BUFFER_STATE b;
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\n");
}
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\n");
break;
}
}
}
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