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Viewing changes to binutils-2.23.52.20130611/ld/ldlex.l

  • Committer: Package Import Robot
  • Author(s): Matthias Klose
  • Date: 2013-06-20 17:38:09 UTC
  • Revision ID: package-import@ubuntu.com-20130620173809-app8lzgvymy5fg6c
Tags: 0.7
Build-depend on binutils-source (>= 2.23.52.20130620-1~).

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binutils-2.23.52.20130611/ld/ldlex.l
 
1
%option nounput
 
2
 
 
3
%{
 
4
 
 
5
/* Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
 
6
   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
 
7
   Free Software Foundation, Inc.
 
8
   Written by Steve Chamberlain of Cygnus Support.
 
9
 
 
10
   This file is part of the GNU Binutils.
 
11
 
 
12
   This program is free software; you can redistribute it and/or modify
 
13
   it under the terms of the GNU General Public License as published by
 
14
   the Free Software Foundation; either version 3 of the License, or
 
15
   (at your option) any later version.
 
16
 
 
17
   This program is distributed in the hope that it will be useful,
 
18
   but WITHOUT ANY WARRANTY; without even the implied warranty of
 
19
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
20
   GNU General Public License for more details.
 
21
 
 
22
   You should have received a copy of the GNU General Public License
 
23
   along with this program; if not, write to the Free Software
 
24
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
 
25
   MA 02110-1301, USA.  */
 
26
 
 
27
#include "bfd.h"
 
28
#include "safe-ctype.h"
 
29
#include "bfdlink.h"
 
30
#include "ld.h"
 
31
#include "ldmisc.h"
 
32
#include "ldexp.h"
 
33
#include "ldlang.h"
 
34
#include <ldgram.h>
 
35
#include "ldfile.h"
 
36
#include "ldlex.h"
 
37
#include "ldmain.h"
 
38
#include "libiberty.h"
 
39
 
 
40
/* The type of top-level parser input.
 
41
   yylex and yyparse (indirectly) both check this.  */
 
42
input_type parser_input;
 
43
 
 
44
/* Line number in the current input file.
 
45
   (FIXME Actually, it doesn't appear to get reset for each file?)  */
 
46
unsigned int lineno = 1;
 
47
 
 
48
/* The string we are currently lexing, or NULL if we are reading a
 
49
   file.  */
 
50
const char *lex_string = NULL;
 
51
 
 
52
/* Support for flex reading from more than one input file (stream).
 
53
   `include_stack' is flex's input state for each open file;
 
54
   `file_name_stack' is the file names.  `lineno_stack' is the current
 
55
   line numbers.
 
56
 
 
57
   If `include_stack_ptr' is 0, we haven't started reading anything yet.
 
58
   Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid.  */
 
59
 
 
60
#undef YY_INPUT
 
61
#define YY_INPUT(buf,result,max_size) result = yy_input (buf, max_size)
 
62
 
 
63
#ifndef YY_NO_UNPUT
 
64
#define YY_NO_UNPUT
 
65
#endif
 
66
 
 
67
#define MAX_INCLUDE_DEPTH 10
 
68
static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
 
69
static const char *file_name_stack[MAX_INCLUDE_DEPTH];
 
70
static unsigned int lineno_stack[MAX_INCLUDE_DEPTH];
 
71
static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH];
 
72
static unsigned int include_stack_ptr = 0;
 
73
static int vers_node_nesting = 0;
 
74
 
 
75
static int yy_input (char *, int);
 
76
static void comment (void);
 
77
static void lex_warn_invalid (char *where, char *what);
 
78
 
 
79
/* STATES
 
80
        EXPRESSION      definitely in an expression
 
81
        SCRIPT          definitely in a script
 
82
        BOTH            either EXPRESSION or SCRIPT
 
83
        DEFSYMEXP       in an argument to -defsym
 
84
        MRI             in an MRI script
 
85
        VERS_START      starting a Sun style mapfile
 
86
        VERS_SCRIPT     a Sun style mapfile
 
87
        VERS_NODE       a node within a Sun style mapfile
 
88
*/
 
89
#define RTOKEN(x)  {  yylval.token = x; return x; }
 
90
 
 
91
/* Some versions of flex want this.  */
 
92
#ifndef yywrap
 
93
int yywrap (void) { return 1; }
 
94
#endif
 
95
%}
 
96
 
 
97
%a 4000
 
98
%o 5000
 
99
 
 
100
CMDFILENAMECHAR   [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~]
 
101
CMDFILENAMECHAR1  [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~]
 
102
FILENAMECHAR1   [_a-zA-Z\/\.\\\$\_\~]
 
103
SYMBOLCHARN     [_a-zA-Z\/\.\\\$\_\~0-9]
 
104
FILENAMECHAR    [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
 
105
WILDCHAR        [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*\^\!]
 
106
WHITE           [ \t\n\r]+
 
107
 
 
108
NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
 
109
 
 
110
V_TAG [.$_a-zA-Z][._a-zA-Z0-9]*
 
111
V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 
112
 
 
113
%s SCRIPT
 
114
%s EXPRESSION
 
115
%s BOTH
 
116
%s DEFSYMEXP
 
117
%s MRI
 
118
%s VERS_START
 
119
%s VERS_SCRIPT
 
120
%s VERS_NODE
 
121
%%
 
122
 
 
123
  if (parser_input != input_selected)
 
124
    {
 
125
      /* The first token of the input determines the initial parser state.  */
 
126
      input_type t = parser_input;
 
127
      parser_input = input_selected;
 
128
      switch (t)
 
129
        {
 
130
        case input_script: return INPUT_SCRIPT; break;
 
131
        case input_mri_script: return INPUT_MRI_SCRIPT; break;
 
132
        case input_version_script: return INPUT_VERSION_SCRIPT; break;
 
133
        case input_dynamic_list: return INPUT_DYNAMIC_LIST; break;
 
134
        case input_defsym: return INPUT_DEFSYM; break;
 
135
        default: abort ();
 
136
        }
 
137
    }
 
138
 
 
139
<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT>"/*"   { comment (); }
 
140
 
 
141
 
 
142
<DEFSYMEXP>"-"                  { RTOKEN('-');}
 
143
<DEFSYMEXP>"+"                  { RTOKEN('+');}
 
144
<DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}*   { yylval.name = xstrdup (yytext); return NAME; }
 
145
<DEFSYMEXP>"="                  { RTOKEN('='); }
 
146
 
 
147
<MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
 
148
                                yylval.integer = bfd_scan_vma (yytext + 1, 0, 16);
 
149
                                yylval.bigint.str = NULL;
 
150
                                return INT;
 
151
                        }
 
152
 
 
153
<MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) {
 
154
                                   int ibase ;
 
155
                                   switch (yytext[yyleng - 1]) {
 
156
                                    case 'X':
 
157
                                    case 'x':
 
158
                                    case 'H':
 
159
                                    case 'h':
 
160
                                     ibase = 16;
 
161
                                     break;
 
162
                                    case 'O':
 
163
                                    case 'o':
 
164
                                     ibase = 8;
 
165
                                     break;
 
166
                                    case 'B':
 
167
                                    case 'b':
 
168
                                     ibase = 2;
 
169
                                     break;
 
170
                                    default:
 
171
                                     ibase = 10;
 
172
                                   }
 
173
                                   yylval.integer = bfd_scan_vma (yytext, 0,
 
174
                                                                  ibase);
 
175
                                   yylval.bigint.str = NULL;
 
176
                                   return INT;
 
177
                                 }
 
178
<SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? {
 
179
                                  char *s = yytext;
 
180
                                  int ibase = 0;
 
181
 
 
182
                                  if (*s == '$')
 
183
                                    {
 
184
                                      ++s;
 
185
                                      ibase = 16;
 
186
                                    }
 
187
                                  yylval.integer = bfd_scan_vma (s, 0, ibase);
 
188
                                  yylval.bigint.str = NULL;
 
189
                                  if (yytext[yyleng - 1] == 'M'
 
190
                                      || yytext[yyleng - 1] == 'm')
 
191
                                    {
 
192
                                      yylval.integer *= 1024 * 1024;
 
193
                                    }
 
194
                                  else if (yytext[yyleng - 1] == 'K'
 
195
                                      || yytext[yyleng - 1]=='k')
 
196
                                    {
 
197
                                      yylval.integer *= 1024;
 
198
                                    }
 
199
                                  else if (yytext[0] == '0'
 
200
                                           && (yytext[1] == 'x'
 
201
                                               || yytext[1] == 'X'))
 
202
                                    {
 
203
                                      yylval.bigint.str = xstrdup (yytext + 2);
 
204
                                    }
 
205
                                  return INT;
 
206
                                }
 
207
<BOTH,SCRIPT,EXPRESSION,MRI>"]"         { RTOKEN(']');}
 
208
<BOTH,SCRIPT,EXPRESSION,MRI>"["         { RTOKEN('[');}
 
209
<BOTH,SCRIPT,EXPRESSION,MRI>"<<="       { RTOKEN(LSHIFTEQ);}
 
210
<BOTH,SCRIPT,EXPRESSION,MRI>">>="       { RTOKEN(RSHIFTEQ);}
 
211
<BOTH,SCRIPT,EXPRESSION,MRI>"||"        { RTOKEN(OROR);}
 
212
<BOTH,SCRIPT,EXPRESSION,MRI>"=="        { RTOKEN(EQ);}
 
213
<BOTH,SCRIPT,EXPRESSION,MRI>"!="        { RTOKEN(NE);}
 
214
<BOTH,SCRIPT,EXPRESSION,MRI>">="        { RTOKEN(GE);}
 
215
<BOTH,SCRIPT,EXPRESSION,MRI>"<="        { RTOKEN(LE);}
 
216
<BOTH,SCRIPT,EXPRESSION,MRI>"<<"        { RTOKEN(LSHIFT);}
 
217
<BOTH,SCRIPT,EXPRESSION,MRI>">>"        { RTOKEN(RSHIFT);}
 
218
<BOTH,SCRIPT,EXPRESSION,MRI>"+="        { RTOKEN(PLUSEQ);}
 
219
<BOTH,SCRIPT,EXPRESSION,MRI>"-="        { RTOKEN(MINUSEQ);}
 
220
<BOTH,SCRIPT,EXPRESSION,MRI>"*="        { RTOKEN(MULTEQ);}
 
221
<BOTH,SCRIPT,EXPRESSION,MRI>"/="        { RTOKEN(DIVEQ);}
 
222
<BOTH,SCRIPT,EXPRESSION,MRI>"&="        { RTOKEN(ANDEQ);}
 
223
<BOTH,SCRIPT,EXPRESSION,MRI>"|="        { RTOKEN(OREQ);}
 
224
<BOTH,SCRIPT,EXPRESSION,MRI>"&&"        { RTOKEN(ANDAND);}
 
225
<BOTH,SCRIPT,EXPRESSION,MRI>">"         { RTOKEN('>');}
 
226
<BOTH,SCRIPT,EXPRESSION,MRI>","         { RTOKEN(',');}
 
227
<BOTH,SCRIPT,EXPRESSION,MRI>"&"         { RTOKEN('&');}
 
228
<BOTH,SCRIPT,EXPRESSION,MRI>"|"         { RTOKEN('|');}
 
229
<BOTH,SCRIPT,EXPRESSION,MRI>"~"         { RTOKEN('~');}
 
230
<BOTH,SCRIPT,EXPRESSION,MRI>"!"         { RTOKEN('!');}
 
231
<BOTH,SCRIPT,EXPRESSION,MRI>"?"         { RTOKEN('?');}
 
232
<BOTH,SCRIPT,EXPRESSION,MRI>"*"         { RTOKEN('*');}
 
233
<BOTH,SCRIPT,EXPRESSION,MRI>"+"         { RTOKEN('+');}
 
234
<BOTH,SCRIPT,EXPRESSION,MRI>"-"         { RTOKEN('-');}
 
235
<BOTH,SCRIPT,EXPRESSION,MRI>"/"         { RTOKEN('/');}
 
236
<BOTH,SCRIPT,EXPRESSION,MRI>"%"         { RTOKEN('%');}
 
237
<BOTH,SCRIPT,EXPRESSION,MRI>"<"         { RTOKEN('<');}
 
238
<BOTH,SCRIPT,EXPRESSION,MRI>"="         { RTOKEN('=');}
 
239
<BOTH,SCRIPT,EXPRESSION,MRI>"}"         { RTOKEN('}') ; }
 
240
<BOTH,SCRIPT,EXPRESSION,MRI>"{"         { RTOKEN('{'); }
 
241
<BOTH,SCRIPT,EXPRESSION,MRI>")"         { RTOKEN(')');}
 
242
<BOTH,SCRIPT,EXPRESSION,MRI>"("         { RTOKEN('(');}
 
243
<BOTH,SCRIPT,EXPRESSION,MRI>":"         { RTOKEN(':'); }
 
244
<BOTH,SCRIPT,EXPRESSION,MRI>";"         { RTOKEN(';');}
 
245
<BOTH,SCRIPT>"MEMORY"                   { RTOKEN(MEMORY);}
 
246
<BOTH,SCRIPT>"REGION_ALIAS"             { RTOKEN(REGION_ALIAS);}
 
247
<BOTH,SCRIPT>"LD_FEATURE"               { RTOKEN(LD_FEATURE);}
 
248
<BOTH,SCRIPT,EXPRESSION>"ORIGIN"        { RTOKEN(ORIGIN);}
 
249
<BOTH,SCRIPT>"VERSION"                  { RTOKEN(VERSIONK);}
 
250
<EXPRESSION,BOTH,SCRIPT>"BLOCK"         { RTOKEN(BLOCK);}
 
251
<EXPRESSION,BOTH,SCRIPT>"BIND"          { RTOKEN(BIND);}
 
252
<BOTH,SCRIPT,EXPRESSION>"LENGTH"        { RTOKEN(LENGTH);}
 
253
<EXPRESSION,BOTH,SCRIPT>"ALIGN"         { RTOKEN(ALIGN_K);}
 
254
<EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN"    { RTOKEN(DATA_SEGMENT_ALIGN);}
 
255
<EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_RELRO_END"        { RTOKEN(DATA_SEGMENT_RELRO_END);}
 
256
<EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END"      { RTOKEN(DATA_SEGMENT_END);}
 
257
<EXPRESSION,BOTH,SCRIPT>"ADDR"          { RTOKEN(ADDR);}
 
258
<EXPRESSION,BOTH,SCRIPT>"LOADADDR"      { RTOKEN(LOADADDR);}
 
259
<EXPRESSION,BOTH,SCRIPT>"ALIGNOF"       { RTOKEN(ALIGNOF); }
 
260
<EXPRESSION,BOTH>"MAX"                  { RTOKEN(MAX_K); }
 
261
<EXPRESSION,BOTH>"MIN"                  { RTOKEN(MIN_K); }
 
262
<EXPRESSION,BOTH,SCRIPT>"ASSERT"        { RTOKEN(ASSERT_K); }
 
263
<BOTH,SCRIPT>"ENTRY"                    { RTOKEN(ENTRY);}
 
264
<BOTH,SCRIPT,MRI>"EXTERN"               { RTOKEN(EXTERN);}
 
265
<EXPRESSION,BOTH,SCRIPT>"NEXT"          { RTOKEN(NEXT);}
 
266
<EXPRESSION,BOTH,SCRIPT>"sizeof_headers"        { RTOKEN(SIZEOF_HEADERS);}
 
267
<EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS"        { RTOKEN(SIZEOF_HEADERS);}
 
268
<EXPRESSION,BOTH,SCRIPT>"SEGMENT_START" { RTOKEN(SEGMENT_START);}
 
269
<BOTH,SCRIPT>"MAP"                      { RTOKEN(MAP);}
 
270
<EXPRESSION,BOTH,SCRIPT>"SIZEOF"        { RTOKEN(SIZEOF);}
 
271
<BOTH,SCRIPT>"TARGET"                   { RTOKEN(TARGET_K);}
 
272
<BOTH,SCRIPT>"SEARCH_DIR"               { RTOKEN(SEARCH_DIR);}
 
273
<BOTH,SCRIPT>"OUTPUT"                   { RTOKEN(OUTPUT);}
 
274
<BOTH,SCRIPT>"INPUT"                    { RTOKEN(INPUT);}
 
275
<EXPRESSION,BOTH,SCRIPT>"GROUP"         { RTOKEN(GROUP);}
 
276
<EXPRESSION,BOTH,SCRIPT>"AS_NEEDED"     { RTOKEN(AS_NEEDED);}
 
277
<EXPRESSION,BOTH,SCRIPT>"DEFINED"       { RTOKEN(DEFINED);}
 
278
<BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS"    { RTOKEN(CREATE_OBJECT_SYMBOLS);}
 
279
<BOTH,SCRIPT>"CONSTRUCTORS"             { RTOKEN( CONSTRUCTORS);}
 
280
<BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION"  { RTOKEN(FORCE_COMMON_ALLOCATION);}
 
281
<BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);}
 
282
<BOTH,SCRIPT>"SECTIONS"                 { RTOKEN(SECTIONS);}
 
283
<BOTH,SCRIPT>"INSERT"                   { RTOKEN(INSERT_K);}
 
284
<BOTH,SCRIPT>"AFTER"                    { RTOKEN(AFTER);}
 
285
<BOTH,SCRIPT>"BEFORE"                   { RTOKEN(BEFORE);}
 
286
<BOTH,SCRIPT>"FILL"                     { RTOKEN(FILL);}
 
287
<BOTH,SCRIPT>"STARTUP"                  { RTOKEN(STARTUP);}
 
288
<BOTH,SCRIPT>"OUTPUT_FORMAT"            { RTOKEN(OUTPUT_FORMAT);}
 
289
<BOTH,SCRIPT>"OUTPUT_ARCH"              { RTOKEN( OUTPUT_ARCH);}
 
290
<BOTH,SCRIPT>"HLL"                      { RTOKEN(HLL);}
 
291
<BOTH,SCRIPT>"SYSLIB"                   { RTOKEN(SYSLIB);}
 
292
<BOTH,SCRIPT>"FLOAT"                    { RTOKEN(FLOAT);}
 
293
<BOTH,SCRIPT>"QUAD"                     { RTOKEN( QUAD);}
 
294
<BOTH,SCRIPT>"SQUAD"                    { RTOKEN( SQUAD);}
 
295
<BOTH,SCRIPT>"LONG"                     { RTOKEN( LONG);}
 
296
<BOTH,SCRIPT>"SHORT"                    { RTOKEN( SHORT);}
 
297
<BOTH,SCRIPT>"BYTE"                     { RTOKEN( BYTE);}
 
298
<BOTH,SCRIPT>"NOFLOAT"                  { RTOKEN(NOFLOAT);}
 
299
<EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS"   { RTOKEN(NOCROSSREFS);}
 
300
<BOTH,SCRIPT>"OVERLAY"                  { RTOKEN(OVERLAY); }
 
301
<BOTH,SCRIPT>"SORT_BY_NAME"             { RTOKEN(SORT_BY_NAME); }
 
302
<BOTH,SCRIPT>"SORT_BY_ALIGNMENT"        { RTOKEN(SORT_BY_ALIGNMENT); }
 
303
<BOTH,SCRIPT>"SORT"                     { RTOKEN(SORT_BY_NAME); }
 
304
<BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY"    { RTOKEN(SORT_BY_INIT_PRIORITY); }
 
305
<BOTH,SCRIPT>"SORT_NONE"                { RTOKEN(SORT_NONE); }
 
306
<EXPRESSION,BOTH,SCRIPT>"NOLOAD"        { RTOKEN(NOLOAD);}
 
307
<EXPRESSION,BOTH,SCRIPT>"DSECT"         { RTOKEN(DSECT);}
 
308
<EXPRESSION,BOTH,SCRIPT>"COPY"          { RTOKEN(COPY);}
 
309
<EXPRESSION,BOTH,SCRIPT>"INFO"          { RTOKEN(INFO);}
 
310
<EXPRESSION,BOTH,SCRIPT>"OVERLAY"       { RTOKEN(OVERLAY);}
 
311
<EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RO"    { RTOKEN(ONLY_IF_RO); }
 
312
<EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RW"    { RTOKEN(ONLY_IF_RW); }
 
313
<EXPRESSION,BOTH,SCRIPT>"SPECIAL"       { RTOKEN(SPECIAL); }
 
314
<BOTH,SCRIPT>"o"                        { RTOKEN(ORIGIN);}
 
315
<BOTH,SCRIPT>"org"                      { RTOKEN(ORIGIN);}
 
316
<BOTH,SCRIPT>"l"                        { RTOKEN( LENGTH);}
 
317
<BOTH,SCRIPT>"len"                      { RTOKEN( LENGTH);}
 
318
<EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS"   { RTOKEN(INPUT_SECTION_FLAGS); }
 
319
<EXPRESSION,BOTH,SCRIPT>"INCLUDE"       { RTOKEN(INCLUDE);}
 
320
<BOTH,SCRIPT>"PHDRS"                    { RTOKEN (PHDRS); }
 
321
<EXPRESSION,BOTH,SCRIPT>"AT"            { RTOKEN(AT);}
 
322
<EXPRESSION,BOTH,SCRIPT>"SUBALIGN"      { RTOKEN(SUBALIGN);}
 
323
<EXPRESSION,BOTH,SCRIPT>"HIDDEN"        { RTOKEN(HIDDEN); }
 
324
<EXPRESSION,BOTH,SCRIPT>"PROVIDE"       { RTOKEN(PROVIDE); }
 
325
<EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); }
 
326
<EXPRESSION,BOTH,SCRIPT>"KEEP"          { RTOKEN(KEEP); }
 
327
<EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE"  { RTOKEN(EXCLUDE_FILE); }
 
328
<EXPRESSION,BOTH,SCRIPT>"CONSTANT"      { RTOKEN(CONSTANT);}
 
329
<MRI>"#".*\n?                   { ++ lineno; }
 
330
<MRI>"\n"                       { ++ lineno;  RTOKEN(NEWLINE); }
 
331
<MRI>"*".*                      { /* Mri comment line */ }
 
332
<MRI>";".*                      { /* Mri comment line */ }
 
333
<MRI>"END"                      { RTOKEN(ENDWORD); }
 
334
<MRI>"ALIGNMOD"                 { RTOKEN(ALIGNMOD);}
 
335
<MRI>"ALIGN"                    { RTOKEN(ALIGN_K);}
 
336
<MRI>"CHIP"                     { RTOKEN(CHIP); }
 
337
<MRI>"BASE"                     { RTOKEN(BASE); }
 
338
<MRI>"ALIAS"                    { RTOKEN(ALIAS); }
 
339
<MRI>"TRUNCATE"                 { RTOKEN(TRUNCATE); }
 
340
<MRI>"LOAD"                     { RTOKEN(LOAD); }
 
341
<MRI>"PUBLIC"                   { RTOKEN(PUBLIC); }
 
342
<MRI>"ORDER"                    { RTOKEN(ORDER); }
 
343
<MRI>"NAME"                     { RTOKEN(NAMEWORD); }
 
344
<MRI>"FORMAT"                   { RTOKEN(FORMAT); }
 
345
<MRI>"CASE"                     { RTOKEN(CASE); }
 
346
<MRI>"START"                    { RTOKEN(START); }
 
347
<MRI>"LIST".*                   { RTOKEN(LIST); /* LIST and ignore to end of line */ }
 
348
<MRI>"SECT"                     { RTOKEN(SECT); }
 
349
<EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE"                  { RTOKEN(ABSOLUTE); }
 
350
<MRI>"end"                      { RTOKEN(ENDWORD); }
 
351
<MRI>"alignmod"                 { RTOKEN(ALIGNMOD);}
 
352
<MRI>"align"                    { RTOKEN(ALIGN_K);}
 
353
<MRI>"chip"                     { RTOKEN(CHIP); }
 
354
<MRI>"base"                     { RTOKEN(BASE); }
 
355
<MRI>"alias"                    { RTOKEN(ALIAS); }
 
356
<MRI>"truncate"                 { RTOKEN(TRUNCATE); }
 
357
<MRI>"load"                     { RTOKEN(LOAD); }
 
358
<MRI>"public"                   { RTOKEN(PUBLIC); }
 
359
<MRI>"order"                    { RTOKEN(ORDER); }
 
360
<MRI>"name"                     { RTOKEN(NAMEWORD); }
 
361
<MRI>"format"                   { RTOKEN(FORMAT); }
 
362
<MRI>"case"                     { RTOKEN(CASE); }
 
363
<MRI>"extern"                   { RTOKEN(EXTERN); }
 
364
<MRI>"start"                    { RTOKEN(START); }
 
365
<MRI>"list".*                   { RTOKEN(LIST); /* LIST and ignore to end of line */ }
 
366
<MRI>"sect"                     { RTOKEN(SECT); }
 
367
<EXPRESSION,BOTH,SCRIPT,MRI>"absolute"                  { RTOKEN(ABSOLUTE); }
 
368
 
 
369
<MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}*  {
 
370
/* Filename without commas, needed to parse mri stuff */
 
371
                                 yylval.name = xstrdup (yytext);
 
372
                                  return NAME;
 
373
                                }
 
374
 
 
375
 
 
376
<BOTH>{FILENAMECHAR1}{FILENAMECHAR}*    {
 
377
                                 yylval.name = xstrdup (yytext);
 
378
                                  return NAME;
 
379
                                }
 
380
<BOTH>"-l"{FILENAMECHAR}+ {
 
381
                                  yylval.name = xstrdup (yytext + 2);
 
382
                                  return LNAME;
 
383
                                }
 
384
<EXPRESSION>{FILENAMECHAR1}{NOCFILENAMECHAR}*   {
 
385
                                 yylval.name = xstrdup (yytext);
 
386
                                  return NAME;
 
387
                                }
 
388
<EXPRESSION>"-l"{NOCFILENAMECHAR}+ {
 
389
                                  yylval.name = xstrdup (yytext + 2);
 
390
                                  return LNAME;
 
391
                                }
 
392
<SCRIPT>{WILDCHAR}* {
 
393
                /* Annoyingly, this pattern can match comments, and we have
 
394
                   longest match issues to consider.  So if the first two
 
395
                   characters are a comment opening, put the input back and
 
396
                   try again.  */
 
397
                if (yytext[0] == '/' && yytext[1] == '*')
 
398
                  {
 
399
                    yyless (2);
 
400
                    comment ();
 
401
                  }
 
402
                else
 
403
                  {
 
404
                    yylval.name = xstrdup (yytext);
 
405
                    return NAME;
 
406
                  }
 
407
        }
 
408
 
 
409
<EXPRESSION,BOTH,SCRIPT,VERS_NODE>"\""[^\"]*"\"" {
 
410
                                        /* No matter the state, quotes
 
411
                                           give what's inside */
 
412
                                        yylval.name = xstrdup (yytext + 1);
 
413
                                        yylval.name[yyleng - 2] = 0;
 
414
                                        return NAME;
 
415
                                }
 
416
<BOTH,SCRIPT,EXPRESSION>"\n"            { lineno++;}
 
417
<MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+    { }
 
418
 
 
419
<VERS_NODE,VERS_SCRIPT>[:,;]    { return *yytext; }
 
420
 
 
421
<VERS_NODE>global               { RTOKEN(GLOBAL); }
 
422
 
 
423
<VERS_NODE>local                { RTOKEN(LOCAL); }
 
424
 
 
425
<VERS_NODE>extern               { RTOKEN(EXTERN); }
 
426
 
 
427
<VERS_NODE>{V_IDENTIFIER}       { yylval.name = xstrdup (yytext);
 
428
                                  return VERS_IDENTIFIER; }
 
429
 
 
430
<VERS_SCRIPT>{V_TAG}            { yylval.name = xstrdup (yytext);
 
431
                                  return VERS_TAG; }
 
432
 
 
433
<VERS_START>"{"                 { BEGIN(VERS_SCRIPT); return *yytext; }
 
434
 
 
435
<VERS_SCRIPT>"{"                { BEGIN(VERS_NODE);
 
436
                                  vers_node_nesting = 0;
 
437
                                  return *yytext;
 
438
                                }
 
439
<VERS_SCRIPT>"}"                { return *yytext; }
 
440
<VERS_NODE>"{"                  { vers_node_nesting++; return *yytext; }
 
441
<VERS_NODE>"}"                  { if (--vers_node_nesting < 0)
 
442
                                    BEGIN(VERS_SCRIPT);
 
443
                                  return *yytext;
 
444
                                }
 
445
 
 
446
<VERS_START,VERS_NODE,VERS_SCRIPT>[\n]          { lineno++; }
 
447
 
 
448
<VERS_START,VERS_NODE,VERS_SCRIPT>#.*           { /* Eat up comments */ }
 
449
 
 
450
<VERS_START,VERS_NODE,VERS_SCRIPT>[ \t\r]+      { /* Eat up whitespace */ }
 
451
 
 
452
<<EOF>> {
 
453
  include_stack_ptr--;
 
454
  if (include_stack_ptr == 0)
 
455
    yyterminate ();
 
456
  else
 
457
    yy_switch_to_buffer (include_stack[include_stack_ptr]);
 
458
 
 
459
  lineno = lineno_stack[include_stack_ptr];
 
460
  input_flags.sysrooted = sysrooted_stack[include_stack_ptr];
 
461
 
 
462
  return END;
 
463
}
 
464
 
 
465
<SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>.  lex_warn_invalid (" in script", yytext);
 
466
<EXPRESSION,DEFSYMEXP,BOTH>.    lex_warn_invalid (" in expression", yytext);
 
467
 
 
468
%%
 
469
 
 
470
 
 
471
/* Switch flex to reading script file NAME, open on FILE,
 
472
   saving the current input info on the include stack.  */
 
473
 
 
474
void
 
475
lex_push_file (FILE *file, const char *name, unsigned int sysrooted)
 
476
{
 
477
  if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
 
478
    {
 
479
      einfo ("%F:includes nested too deeply\n");
 
480
    }
 
481
  file_name_stack[include_stack_ptr] = name;
 
482
  lineno_stack[include_stack_ptr] = lineno;
 
483
  sysrooted_stack[include_stack_ptr] = input_flags.sysrooted;
 
484
  include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
 
485
 
 
486
  include_stack_ptr++;
 
487
  lineno = 1;
 
488
  input_flags.sysrooted = sysrooted;
 
489
  yyin = file;
 
490
  yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE));
 
491
}
 
492
 
 
493
/* Return a newly created flex input buffer containing STRING,
 
494
   which is SIZE bytes long.  */
 
495
 
 
496
static YY_BUFFER_STATE
 
497
yy_create_string_buffer (const char *string, size_t size)
 
498
{
 
499
  YY_BUFFER_STATE b;
 
500
 
 
501
  /* Calls to m-alloc get turned by sed into xm-alloc.  */
 
502
  b = malloc (sizeof (struct yy_buffer_state));
 
503
  b->yy_input_file = 0;
 
504
  b->yy_buf_size = size;
 
505
 
 
506
  /* yy_ch_buf has to be 2 characters longer than the size given because
 
507
     we need to put in 2 end-of-buffer characters.  */
 
508
  b->yy_ch_buf = malloc ((unsigned) (b->yy_buf_size + 3));
 
509
 
 
510
  b->yy_ch_buf[0] = '\n';
 
511
  strcpy (b->yy_ch_buf+1, string);
 
512
  b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR;
 
513
  b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR;
 
514
  b->yy_n_chars = size+1;
 
515
  b->yy_buf_pos = &b->yy_ch_buf[1];
 
516
 
 
517
  b->yy_is_our_buffer = 1;
 
518
  b->yy_is_interactive = 0;
 
519
  b->yy_at_bol = 1;
 
520
  b->yy_fill_buffer = 0;
 
521
 
 
522
  /* flex 2.4.7 changed the interface.  FIXME: We should not be using
 
523
     a flex internal interface in the first place!  */
 
524
#ifdef YY_BUFFER_NEW
 
525
  b->yy_buffer_status = YY_BUFFER_NEW;
 
526
#else
 
527
  b->yy_eof_status = EOF_NOT_SEEN;
 
528
#endif
 
529
 
 
530
  return b;
 
531
}
 
532
 
 
533
/* Switch flex to reading from STRING, saving the current input info
 
534
   on the include stack.  */
 
535
 
 
536
void
 
537
lex_redirect (const char *string, const char *fake_filename, unsigned int count)
 
538
{
 
539
  YY_BUFFER_STATE tmp;
 
540
 
 
541
  yy_init = 0;
 
542
  if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
 
543
    {
 
544
      einfo("%F: macros nested too deeply\n");
 
545
    }
 
546
  file_name_stack[include_stack_ptr] = fake_filename;
 
547
  lineno_stack[include_stack_ptr] = lineno;
 
548
  include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
 
549
  include_stack_ptr++;
 
550
  lineno = count;
 
551
  tmp = yy_create_string_buffer (string, strlen (string));
 
552
  yy_switch_to_buffer (tmp);
 
553
}
 
554
 
 
555
/* Functions to switch to a different flex start condition,
 
556
   saving the current start condition on `state_stack'.  */
 
557
 
 
558
static int state_stack[MAX_INCLUDE_DEPTH * 2];
 
559
static int *state_stack_p = state_stack;
 
560
 
 
561
void
 
562
ldlex_script (void)
 
563
{
 
564
  *(state_stack_p)++ = yy_start;
 
565
  BEGIN (SCRIPT);
 
566
}
 
567
 
 
568
void
 
569
ldlex_mri_script (void)
 
570
{
 
571
  *(state_stack_p)++ = yy_start;
 
572
  BEGIN (MRI);
 
573
}
 
574
 
 
575
void
 
576
ldlex_version_script (void)
 
577
{
 
578
  *(state_stack_p)++ = yy_start;
 
579
  BEGIN (VERS_START);
 
580
}
 
581
 
 
582
void
 
583
ldlex_version_file (void)
 
584
{
 
585
  *(state_stack_p)++ = yy_start;
 
586
  BEGIN (VERS_SCRIPT);
 
587
}
 
588
 
 
589
void
 
590
ldlex_defsym (void)
 
591
{
 
592
  *(state_stack_p)++ = yy_start;
 
593
  BEGIN (DEFSYMEXP);
 
594
}
 
595
 
 
596
void
 
597
ldlex_expression (void)
 
598
{
 
599
  *(state_stack_p)++ = yy_start;
 
600
  BEGIN (EXPRESSION);
 
601
}
 
602
 
 
603
void
 
604
ldlex_both (void)
 
605
{
 
606
  *(state_stack_p)++ = yy_start;
 
607
  BEGIN (BOTH);
 
608
}
 
609
 
 
610
void
 
611
ldlex_popstate (void)
 
612
{
 
613
  yy_start = *(--state_stack_p);
 
614
}
 
615
 
 
616
/* Return the current file name, or the previous file if no file is
 
617
   current.  */
 
618
 
 
619
const char*
 
620
ldlex_filename (void)
 
621
{
 
622
  return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)];
 
623
}
 
624
 
 
625
 
 
626
/* Place up to MAX_SIZE characters in BUF and return
 
627
   either the number of characters read, or 0 to indicate EOF.  */
 
628
 
 
629
static int
 
630
yy_input (char *buf, int max_size)
 
631
{
 
632
  int result = 0;
 
633
  if (YY_CURRENT_BUFFER->yy_input_file)
 
634
    {
 
635
      if (yyin)
 
636
        {
 
637
          result = fread (buf, 1, max_size, yyin);
 
638
          if (result < max_size && ferror (yyin))
 
639
            einfo ("%F%P: read in flex scanner failed\n");
 
640
        }
 
641
    }
 
642
  return result;
 
643
}
 
644
 
 
645
/* Eat the rest of a C-style comment.  */
 
646
 
 
647
static void
 
648
comment (void)
 
649
{
 
650
  int c;
 
651
 
 
652
  while (1)
 
653
  {
 
654
    c = input();
 
655
    while (c != '*' && c != EOF)
 
656
    {
 
657
      if (c == '\n')
 
658
        lineno++;
 
659
      c = input();
 
660
    }
 
661
 
 
662
    if (c == '*')
 
663
    {
 
664
      c = input();
 
665
      while (c == '*')
 
666
       c = input();
 
667
      if (c == '/')
 
668
       break;                   /* found the end */
 
669
    }
 
670
 
 
671
    if (c == '\n')
 
672
      lineno++;
 
673
 
 
674
    if (c == EOF)
 
675
    {
 
676
      einfo( "%F%P: EOF in comment\n");
 
677
      break;
 
678
    }
 
679
  }
 
680
}
 
681
 
 
682
/* Warn the user about a garbage character WHAT in the input
 
683
   in context WHERE.  */
 
684
 
 
685
static void
 
686
lex_warn_invalid (char *where, char *what)
 
687
{
 
688
  char buf[5];
 
689
 
 
690
  /* If we have found an input file whose format we do not recognize,
 
691
     and we are therefore treating it as a linker script, and we find
 
692
     an invalid character, then most likely this is a real object file
 
693
     of some different format.  Treat it as such.  */
 
694
  if (ldfile_assumed_script)
 
695
    {
 
696
      bfd_set_error (bfd_error_file_not_recognized);
 
697
      einfo ("%F%s: file not recognized: %E\n", ldlex_filename ());
 
698
    }
 
699
 
 
700
  if (! ISPRINT (*what))
 
701
    {
 
702
      sprintf (buf, "\\%03o", *(unsigned char *) what);
 
703
      what = buf;
 
704
    }
 
705
 
 
706
  einfo ("%P:%S: ignoring invalid character `%s'%s\n", NULL, what, where);
 
707
}