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9d8e8f445c
This patch deals with the generation of the import library on the fly. The implementation is inefficient because the linker makes a lot of calls to realloc and memmove when importing the symbols in order to maintain a sorted list of symbols. This is fixable by relying on the fact that, for every linked DLL, the list of symbols it exports is already sorted so you can import them en masse once you have found the insertion point. ld/ * deffile.h (def_file_add_import_from): Declare. (def_file_add_import_at): Likewise. * deffilep.y (fill_in_import): New function extracted from... (def_file_add_import): ...here. Call it. (def_file_add_import_from): New function. (def_file_add_import_at): Likewise. * pe-dll.c (pe_implied_import_dll): Use an optimized version of the insertion loop for imported symbols if possible.
1569 lines
34 KiB
Plaintext
1569 lines
34 KiB
Plaintext
%{ /* deffilep.y - parser for .def files */
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/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
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This file is part of GNU Binutils.
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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 this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "libiberty.h"
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#include "safe-ctype.h"
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#include "bfd.h"
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#include "ld.h"
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#include "ldmisc.h"
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#include "deffile.h"
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#define TRACE 0
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#define ROUND_UP(a, b) (((a)+((b)-1))&~((b)-1))
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/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
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as well as gratuitiously global symbol names, so we can have multiple
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yacc generated parsers in ld. Note that these are only the variables
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produced by yacc. If other parser generators (bison, byacc, etc) produce
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additional global names that conflict at link time, then those parser
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generators need to be fixed instead of adding those names to this list. */
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#define yymaxdepth def_maxdepth
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#define yyparse def_parse
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#define yylex def_lex
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#define yyerror def_error
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#define yylval def_lval
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#define yychar def_char
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#define yydebug def_debug
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#define yypact def_pact
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#define yyr1 def_r1
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#define yyr2 def_r2
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#define yydef def_def
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#define yychk def_chk
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#define yypgo def_pgo
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#define yyact def_act
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#define yyexca def_exca
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#define yyerrflag def_errflag
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#define yynerrs def_nerrs
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#define yyps def_ps
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#define yypv def_pv
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#define yys def_s
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#define yy_yys def_yys
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#define yystate def_state
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#define yytmp def_tmp
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#define yyv def_v
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#define yy_yyv def_yyv
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#define yyval def_val
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#define yylloc def_lloc
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#define yyreds def_reds /* With YYDEBUG defined. */
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#define yytoks def_toks /* With YYDEBUG defined. */
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#define yylhs def_yylhs
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#define yylen def_yylen
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#define yydefred def_yydefred
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#define yydgoto def_yydgoto
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#define yysindex def_yysindex
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#define yyrindex def_yyrindex
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#define yygindex def_yygindex
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#define yytable def_yytable
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#define yycheck def_yycheck
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typedef struct def_pool_str {
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struct def_pool_str *next;
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char data[1];
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} def_pool_str;
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static def_pool_str *pool_strs = NULL;
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static char *def_pool_alloc (size_t sz);
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static char *def_pool_strdup (const char *str);
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static void def_pool_free (void);
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static void def_description (const char *);
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static void def_exports (const char *, const char *, int, int, const char *);
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static void def_heapsize (int, int);
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static void def_import (const char *, const char *, const char *, const char *,
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int, const char *);
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static void def_image_name (const char *, bfd_vma, int);
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static void def_section (const char *, int);
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static void def_section_alt (const char *, const char *);
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static void def_stacksize (int, int);
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static void def_version (int, int);
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static void def_directive (char *);
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static void def_aligncomm (char *str, int align);
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static int def_parse (void);
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static int def_error (const char *);
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static int def_lex (void);
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static int lex_forced_token = 0;
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static const char *lex_parse_string = 0;
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static const char *lex_parse_string_end = 0;
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%}
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%union {
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char *id;
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const char *id_const;
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int number;
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bfd_vma vma;
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char *digits;
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};
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%token NAME LIBRARY DESCRIPTION STACKSIZE_K HEAPSIZE CODE DATAU DATAL
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%token SECTIONS EXPORTS IMPORTS VERSIONK BASE CONSTANTU CONSTANTL
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%token PRIVATEU PRIVATEL ALIGNCOMM
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%token READ WRITE EXECUTE SHARED NONAMEU NONAMEL DIRECTIVE EQUAL
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%token <id> ID
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%token <digits> DIGITS
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%type <number> NUMBER
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%type <vma> VMA opt_base
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%type <digits> opt_digits
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%type <number> opt_ordinal
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%type <number> attr attr_list opt_number exp_opt_list exp_opt
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%type <id> opt_name opt_name2 opt_equal_name anylang_id opt_id
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%type <id> opt_equalequal_name
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%type <id_const> keyword_as_name
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%%
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start: start command
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| command
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;
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command:
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NAME opt_name opt_base { def_image_name ($2, $3, 0); }
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| LIBRARY opt_name opt_base { def_image_name ($2, $3, 1); }
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| DESCRIPTION ID { def_description ($2);}
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| STACKSIZE_K NUMBER opt_number { def_stacksize ($2, $3);}
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| HEAPSIZE NUMBER opt_number { def_heapsize ($2, $3);}
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| CODE attr_list { def_section ("CODE", $2);}
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| DATAU attr_list { def_section ("DATA", $2);}
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| SECTIONS seclist
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| EXPORTS explist
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| IMPORTS implist
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| VERSIONK NUMBER { def_version ($2, 0);}
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| VERSIONK NUMBER '.' NUMBER { def_version ($2, $4);}
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| DIRECTIVE ID { def_directive ($2);}
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| ALIGNCOMM anylang_id ',' NUMBER { def_aligncomm ($2, $4);}
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;
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explist:
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/* EMPTY */
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| expline
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| explist expline
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;
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expline:
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/* The opt_comma is necessary to support both the usual
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DEF file syntax as well as .drectve syntax which
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mandates <expsym>,<expoptlist>. */
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opt_name2 opt_equal_name opt_ordinal opt_comma exp_opt_list opt_comma opt_equalequal_name
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{ def_exports ($1, $2, $3, $5, $7); }
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;
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exp_opt_list:
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/* The opt_comma is necessary to support both the usual
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DEF file syntax as well as .drectve syntax which
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allows for comma separated opt list. */
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exp_opt opt_comma exp_opt_list { $$ = $1 | $3; }
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| { $$ = 0; }
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;
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exp_opt:
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NONAMEU { $$ = 1; }
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| NONAMEL { $$ = 1; }
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| CONSTANTU { $$ = 2; }
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| CONSTANTL { $$ = 2; }
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| DATAU { $$ = 4; }
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| DATAL { $$ = 4; }
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| PRIVATEU { $$ = 8; }
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| PRIVATEL { $$ = 8; }
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;
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implist:
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implist impline
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| impline
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;
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impline:
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ID '=' ID '.' ID '.' ID opt_equalequal_name
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{ def_import ($1, $3, $5, $7, -1, $8); }
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| ID '=' ID '.' ID '.' NUMBER opt_equalequal_name
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{ def_import ($1, $3, $5, 0, $7, $8); }
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| ID '=' ID '.' ID opt_equalequal_name
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{ def_import ($1, $3, 0, $5, -1, $6); }
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| ID '=' ID '.' NUMBER opt_equalequal_name
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{ def_import ($1, $3, 0, 0, $5, $6); }
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| ID '.' ID '.' ID opt_equalequal_name
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{ def_import( 0, $1, $3, $5, -1, $6); }
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| ID '.' ID opt_equalequal_name
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{ def_import ( 0, $1, 0, $3, -1, $4); }
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;
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seclist:
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seclist secline
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| secline
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;
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secline:
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ID attr_list { def_section ($1, $2);}
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| ID ID { def_section_alt ($1, $2);}
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;
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attr_list:
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attr_list opt_comma attr { $$ = $1 | $3; }
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| attr { $$ = $1; }
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;
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opt_comma:
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','
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;
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opt_number: ',' NUMBER { $$=$2;}
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| { $$=-1;}
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;
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attr:
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READ { $$ = 1;}
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| WRITE { $$ = 2;}
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| EXECUTE { $$=4;}
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| SHARED { $$=8;}
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;
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keyword_as_name: BASE { $$ = "BASE"; }
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| CODE { $$ = "CODE"; }
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| CONSTANTU { $$ = "CONSTANT"; }
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| CONSTANTL { $$ = "constant"; }
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| DATAU { $$ = "DATA"; }
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| DATAL { $$ = "data"; }
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| DESCRIPTION { $$ = "DESCRIPTION"; }
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| DIRECTIVE { $$ = "DIRECTIVE"; }
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| EXECUTE { $$ = "EXECUTE"; }
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| EXPORTS { $$ = "EXPORTS"; }
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| HEAPSIZE { $$ = "HEAPSIZE"; }
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| IMPORTS { $$ = "IMPORTS"; }
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/* Disable LIBRARY keyword as valid symbol-name. This is necessary
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for libtool, which places this command after EXPORTS command.
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This behavior is illegal by specification, but sadly required by
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by compatibility reasons.
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See PR binutils/13710
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| LIBRARY { $$ = "LIBRARY"; } */
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| NAME { $$ = "NAME"; }
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| NONAMEU { $$ = "NONAME"; }
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| NONAMEL { $$ = "noname"; }
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| PRIVATEU { $$ = "PRIVATE"; }
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| PRIVATEL { $$ = "private"; }
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| READ { $$ = "READ"; }
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| SHARED { $$ = "SHARED"; }
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| STACKSIZE_K { $$ = "STACKSIZE"; }
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| VERSIONK { $$ = "VERSION"; }
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| WRITE { $$ = "WRITE"; }
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;
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opt_name2: ID { $$ = $1; }
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| '.' keyword_as_name
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{
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char *name = xmalloc (strlen ($2) + 2);
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sprintf (name, ".%s", $2);
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$$ = name;
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}
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| '.' opt_name2
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{
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char *name = def_pool_alloc (strlen ($2) + 2);
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sprintf (name, ".%s", $2);
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$$ = name;
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}
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| keyword_as_name '.' opt_name2
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{
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char *name = def_pool_alloc (strlen ($1) + 1 + strlen ($3) + 1);
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sprintf (name, "%s.%s", $1, $3);
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$$ = name;
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}
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| ID '.' opt_name2
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{
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char *name = def_pool_alloc (strlen ($1) + 1 + strlen ($3) + 1);
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sprintf (name, "%s.%s", $1, $3);
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$$ = name;
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}
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;
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opt_name: opt_name2 { $$ = $1; }
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| { $$ = ""; }
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;
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opt_equalequal_name: EQUAL ID { $$ = $2; }
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| { $$ = 0; }
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;
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opt_ordinal:
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'@' NUMBER { $$ = $2;}
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| { $$ = -1;}
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;
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opt_equal_name:
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'=' opt_name2 { $$ = $2; }
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| { $$ = 0; }
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;
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opt_base: BASE '=' VMA { $$ = $3;}
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| { $$ = (bfd_vma) -1;}
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;
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anylang_id: ID { $$ = $1; }
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| '.' ID
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{
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char *id = def_pool_alloc (strlen ($2) + 2);
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sprintf (id, ".%s", $2);
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$$ = id;
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}
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| anylang_id '.' opt_digits opt_id
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{
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char *id = def_pool_alloc (strlen ($1) + 1 + strlen ($3) + strlen ($4) + 1);
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sprintf (id, "%s.%s%s", $1, $3, $4);
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$$ = id;
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}
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;
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opt_digits: DIGITS { $$ = $1; }
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| { $$ = ""; }
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;
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opt_id: ID { $$ = $1; }
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| { $$ = ""; }
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;
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NUMBER: DIGITS { $$ = strtoul ($1, 0, 0); }
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;
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VMA: DIGITS { $$ = (bfd_vma) strtoull ($1, 0, 0); }
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%%
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/*****************************************************************************
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API
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*****************************************************************************/
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static FILE *the_file;
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static const char *def_filename;
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static int linenumber;
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static def_file *def;
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static int saw_newline;
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struct directive
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{
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struct directive *next;
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char *name;
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int len;
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};
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static struct directive *directives = 0;
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def_file *
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def_file_empty (void)
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{
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def_file *rv = xmalloc (sizeof (def_file));
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memset (rv, 0, sizeof (def_file));
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rv->is_dll = -1;
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rv->base_address = (bfd_vma) -1;
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rv->stack_reserve = rv->stack_commit = -1;
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rv->heap_reserve = rv->heap_commit = -1;
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rv->version_major = rv->version_minor = -1;
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return rv;
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}
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def_file *
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def_file_parse (const char *filename, def_file *add_to)
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{
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struct directive *d;
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the_file = fopen (filename, "r");
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def_filename = filename;
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linenumber = 1;
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if (!the_file)
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{
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perror (filename);
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return 0;
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}
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if (add_to)
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{
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def = add_to;
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}
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else
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{
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def = def_file_empty ();
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}
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saw_newline = 1;
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if (def_parse ())
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{
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def_file_free (def);
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fclose (the_file);
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def_pool_free ();
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return 0;
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}
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fclose (the_file);
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while ((d = directives) != NULL)
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{
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#if TRACE
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printf ("Adding directive %08x `%s'\n", d->name, d->name);
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#endif
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def_file_add_directive (def, d->name, d->len);
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directives = d->next;
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free (d->name);
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free (d);
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}
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def_pool_free ();
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return def;
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}
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void
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def_file_free (def_file *fdef)
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{
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int i;
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if (!fdef)
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return;
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if (fdef->name)
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free (fdef->name);
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if (fdef->description)
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free (fdef->description);
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if (fdef->section_defs)
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{
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for (i = 0; i < fdef->num_section_defs; i++)
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{
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if (fdef->section_defs[i].name)
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free (fdef->section_defs[i].name);
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if (fdef->section_defs[i].class)
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free (fdef->section_defs[i].class);
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}
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free (fdef->section_defs);
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}
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if (fdef->exports)
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{
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for (i = 0; i < fdef->num_exports; i++)
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{
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if (fdef->exports[i].internal_name
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&& fdef->exports[i].internal_name != fdef->exports[i].name)
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free (fdef->exports[i].internal_name);
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if (fdef->exports[i].name)
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free (fdef->exports[i].name);
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if (fdef->exports[i].its_name)
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free (fdef->exports[i].its_name);
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}
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free (fdef->exports);
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}
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if (fdef->imports)
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{
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for (i = 0; i < fdef->num_imports; i++)
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{
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if (fdef->imports[i].internal_name
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&& fdef->imports[i].internal_name != fdef->imports[i].name)
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free (fdef->imports[i].internal_name);
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|
if (fdef->imports[i].name)
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free (fdef->imports[i].name);
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if (fdef->imports[i].its_name)
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free (fdef->imports[i].its_name);
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}
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free (fdef->imports);
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}
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while (fdef->modules)
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{
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def_file_module *m = fdef->modules;
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fdef->modules = fdef->modules->next;
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free (m);
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}
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while (fdef->aligncomms)
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{
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def_file_aligncomm *c = fdef->aligncomms;
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fdef->aligncomms = fdef->aligncomms->next;
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free (c->symbol_name);
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free (c);
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}
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free (fdef);
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}
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#ifdef DEF_FILE_PRINT
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void
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def_file_print (FILE *file, def_file *fdef)
|
|
{
|
|
int i;
|
|
|
|
fprintf (file, ">>>> def_file at 0x%08x\n", fdef);
|
|
if (fdef->name)
|
|
fprintf (file, " name: %s\n", fdef->name ? fdef->name : "(unspecified)");
|
|
if (fdef->is_dll != -1)
|
|
fprintf (file, " is dll: %s\n", fdef->is_dll ? "yes" : "no");
|
|
if (fdef->base_address != (bfd_vma) -1)
|
|
{
|
|
fprintf (file, " base address: 0x");
|
|
fprintf_vma (file, fdef->base_address);
|
|
fprintf (file, "\n");
|
|
}
|
|
if (fdef->description)
|
|
fprintf (file, " description: `%s'\n", fdef->description);
|
|
if (fdef->stack_reserve != -1)
|
|
fprintf (file, " stack reserve: 0x%08x\n", fdef->stack_reserve);
|
|
if (fdef->stack_commit != -1)
|
|
fprintf (file, " stack commit: 0x%08x\n", fdef->stack_commit);
|
|
if (fdef->heap_reserve != -1)
|
|
fprintf (file, " heap reserve: 0x%08x\n", fdef->heap_reserve);
|
|
if (fdef->heap_commit != -1)
|
|
fprintf (file, " heap commit: 0x%08x\n", fdef->heap_commit);
|
|
|
|
if (fdef->num_section_defs > 0)
|
|
{
|
|
fprintf (file, " section defs:\n");
|
|
|
|
for (i = 0; i < fdef->num_section_defs; i++)
|
|
{
|
|
fprintf (file, " name: `%s', class: `%s', flags:",
|
|
fdef->section_defs[i].name, fdef->section_defs[i].class);
|
|
if (fdef->section_defs[i].flag_read)
|
|
fprintf (file, " R");
|
|
if (fdef->section_defs[i].flag_write)
|
|
fprintf (file, " W");
|
|
if (fdef->section_defs[i].flag_execute)
|
|
fprintf (file, " X");
|
|
if (fdef->section_defs[i].flag_shared)
|
|
fprintf (file, " S");
|
|
fprintf (file, "\n");
|
|
}
|
|
}
|
|
|
|
if (fdef->num_exports > 0)
|
|
{
|
|
fprintf (file, " exports:\n");
|
|
|
|
for (i = 0; i < fdef->num_exports; i++)
|
|
{
|
|
fprintf (file, " name: `%s', int: `%s', ordinal: %d, flags:",
|
|
fdef->exports[i].name, fdef->exports[i].internal_name,
|
|
fdef->exports[i].ordinal);
|
|
if (fdef->exports[i].flag_private)
|
|
fprintf (file, " P");
|
|
if (fdef->exports[i].flag_constant)
|
|
fprintf (file, " C");
|
|
if (fdef->exports[i].flag_noname)
|
|
fprintf (file, " N");
|
|
if (fdef->exports[i].flag_data)
|
|
fprintf (file, " D");
|
|
fprintf (file, "\n");
|
|
}
|
|
}
|
|
|
|
if (fdef->num_imports > 0)
|
|
{
|
|
fprintf (file, " imports:\n");
|
|
|
|
for (i = 0; i < fdef->num_imports; i++)
|
|
{
|
|
fprintf (file, " int: %s, from: `%s', name: `%s', ordinal: %d\n",
|
|
fdef->imports[i].internal_name,
|
|
fdef->imports[i].module,
|
|
fdef->imports[i].name,
|
|
fdef->imports[i].ordinal);
|
|
}
|
|
}
|
|
|
|
if (fdef->version_major != -1)
|
|
fprintf (file, " version: %d.%d\n", fdef->version_major, fdef->version_minor);
|
|
|
|
fprintf (file, "<<<< def_file at 0x%08x\n", fdef);
|
|
}
|
|
#endif
|
|
|
|
/* Helper routine to check for identity of string pointers,
|
|
which might be NULL. */
|
|
|
|
static int
|
|
are_names_equal (const char *s1, const char *s2)
|
|
{
|
|
if (!s1 && !s2)
|
|
return 0;
|
|
if (!s1 || !s2)
|
|
return (!s1 ? -1 : 1);
|
|
return strcmp (s1, s2);
|
|
}
|
|
|
|
static int
|
|
cmp_export_elem (const def_file_export *e, const char *ex_name,
|
|
const char *in_name, const char *its_name,
|
|
int ord)
|
|
{
|
|
int r;
|
|
|
|
if ((r = are_names_equal (ex_name, e->name)) != 0)
|
|
return r;
|
|
if ((r = are_names_equal (in_name, e->internal_name)) != 0)
|
|
return r;
|
|
if ((r = are_names_equal (its_name, e->its_name)) != 0)
|
|
return r;
|
|
return (ord - e->ordinal);
|
|
}
|
|
|
|
/* Search the position of the identical element, or returns the position
|
|
of the next higher element. If last valid element is smaller, then MAX
|
|
is returned. */
|
|
|
|
static int
|
|
find_export_in_list (def_file_export *b, int max,
|
|
const char *ex_name, const char *in_name,
|
|
const char *its_name, int ord, int *is_ident)
|
|
{
|
|
int e, l, r, p;
|
|
|
|
*is_ident = 0;
|
|
if (!max)
|
|
return 0;
|
|
if ((e = cmp_export_elem (b, ex_name, in_name, its_name, ord)) <= 0)
|
|
{
|
|
if (!e)
|
|
*is_ident = 1;
|
|
return 0;
|
|
}
|
|
if (max == 1)
|
|
return 1;
|
|
if ((e = cmp_export_elem (b + (max - 1), ex_name, in_name, its_name, ord)) > 0)
|
|
return max;
|
|
else if (!e || max == 2)
|
|
{
|
|
if (!e)
|
|
*is_ident = 1;
|
|
return max - 1;
|
|
}
|
|
l = 0; r = max - 1;
|
|
while (l < r)
|
|
{
|
|
p = (l + r) / 2;
|
|
e = cmp_export_elem (b + p, ex_name, in_name, its_name, ord);
|
|
if (!e)
|
|
{
|
|
*is_ident = 1;
|
|
return p;
|
|
}
|
|
else if (e < 0)
|
|
r = p - 1;
|
|
else if (e > 0)
|
|
l = p + 1;
|
|
}
|
|
if ((e = cmp_export_elem (b + l, ex_name, in_name, its_name, ord)) > 0)
|
|
++l;
|
|
else if (!e)
|
|
*is_ident = 1;
|
|
return l;
|
|
}
|
|
|
|
def_file_export *
|
|
def_file_add_export (def_file *fdef,
|
|
const char *external_name,
|
|
const char *internal_name,
|
|
int ordinal,
|
|
const char *its_name,
|
|
int *is_dup)
|
|
{
|
|
def_file_export *e;
|
|
int pos;
|
|
int max_exports = ROUND_UP(fdef->num_exports, 32);
|
|
|
|
if (internal_name && !external_name)
|
|
external_name = internal_name;
|
|
if (external_name && !internal_name)
|
|
internal_name = external_name;
|
|
|
|
/* We need to avoid duplicates. */
|
|
*is_dup = 0;
|
|
pos = find_export_in_list (fdef->exports, fdef->num_exports,
|
|
external_name, internal_name,
|
|
its_name, ordinal, is_dup);
|
|
|
|
if (*is_dup != 0)
|
|
return (fdef->exports + pos);
|
|
|
|
if (fdef->num_exports >= max_exports)
|
|
{
|
|
max_exports = ROUND_UP(fdef->num_exports + 1, 32);
|
|
if (fdef->exports)
|
|
fdef->exports = xrealloc (fdef->exports,
|
|
max_exports * sizeof (def_file_export));
|
|
else
|
|
fdef->exports = xmalloc (max_exports * sizeof (def_file_export));
|
|
}
|
|
|
|
e = fdef->exports + pos;
|
|
if (pos != fdef->num_exports)
|
|
memmove (&e[1], e, (sizeof (def_file_export) * (fdef->num_exports - pos)));
|
|
memset (e, 0, sizeof (def_file_export));
|
|
e->name = xstrdup (external_name);
|
|
e->internal_name = xstrdup (internal_name);
|
|
e->its_name = (its_name ? xstrdup (its_name) : NULL);
|
|
e->ordinal = ordinal;
|
|
fdef->num_exports++;
|
|
return e;
|
|
}
|
|
|
|
def_file_module *
|
|
def_get_module (def_file *fdef, const char *name)
|
|
{
|
|
def_file_module *s;
|
|
|
|
for (s = fdef->modules; s; s = s->next)
|
|
if (strcmp (s->name, name) == 0)
|
|
return s;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static def_file_module *
|
|
def_stash_module (def_file *fdef, const char *name)
|
|
{
|
|
def_file_module *s;
|
|
|
|
if ((s = def_get_module (fdef, name)) != NULL)
|
|
return s;
|
|
s = xmalloc (sizeof (def_file_module) + strlen (name));
|
|
s->next = fdef->modules;
|
|
fdef->modules = s;
|
|
s->user_data = 0;
|
|
strcpy (s->name, name);
|
|
return s;
|
|
}
|
|
|
|
static int
|
|
cmp_import_elem (const def_file_import *e, const char *ex_name,
|
|
const char *in_name, const char *module,
|
|
int ord)
|
|
{
|
|
int r;
|
|
|
|
if ((r = are_names_equal (module, (e->module ? e->module->name : NULL))))
|
|
return r;
|
|
if ((r = are_names_equal (ex_name, e->name)) != 0)
|
|
return r;
|
|
if ((r = are_names_equal (in_name, e->internal_name)) != 0)
|
|
return r;
|
|
if (ord != e->ordinal)
|
|
return (ord < e->ordinal ? -1 : 1);
|
|
return 0;
|
|
}
|
|
|
|
/* Search the position of the identical element, or returns the position
|
|
of the next higher element. If last valid element is smaller, then MAX
|
|
is returned. */
|
|
|
|
static int
|
|
find_import_in_list (def_file_import *b, int max,
|
|
const char *ex_name, const char *in_name,
|
|
const char *module, int ord, int *is_ident)
|
|
{
|
|
int e, l, r, p;
|
|
|
|
*is_ident = 0;
|
|
if (!max)
|
|
return 0;
|
|
if ((e = cmp_import_elem (b, ex_name, in_name, module, ord)) <= 0)
|
|
{
|
|
if (!e)
|
|
*is_ident = 1;
|
|
return 0;
|
|
}
|
|
if (max == 1)
|
|
return 1;
|
|
if ((e = cmp_import_elem (b + (max - 1), ex_name, in_name, module, ord)) > 0)
|
|
return max;
|
|
else if (!e || max == 2)
|
|
{
|
|
if (!e)
|
|
*is_ident = 1;
|
|
return max - 1;
|
|
}
|
|
l = 0; r = max - 1;
|
|
while (l < r)
|
|
{
|
|
p = (l + r) / 2;
|
|
e = cmp_import_elem (b + p, ex_name, in_name, module, ord);
|
|
if (!e)
|
|
{
|
|
*is_ident = 1;
|
|
return p;
|
|
}
|
|
else if (e < 0)
|
|
r = p - 1;
|
|
else if (e > 0)
|
|
l = p + 1;
|
|
}
|
|
if ((e = cmp_import_elem (b + l, ex_name, in_name, module, ord)) > 0)
|
|
++l;
|
|
else if (!e)
|
|
*is_ident = 1;
|
|
return l;
|
|
}
|
|
|
|
static void
|
|
fill_in_import (def_file_import *i,
|
|
const char *name,
|
|
def_file_module *module,
|
|
int ordinal,
|
|
const char *internal_name,
|
|
const char *its_name)
|
|
{
|
|
memset (i, 0, sizeof (def_file_import));
|
|
if (name)
|
|
i->name = xstrdup (name);
|
|
i->module = module;
|
|
i->ordinal = ordinal;
|
|
if (internal_name)
|
|
i->internal_name = xstrdup (internal_name);
|
|
else
|
|
i->internal_name = i->name;
|
|
i->its_name = (its_name ? xstrdup (its_name) : NULL);
|
|
}
|
|
|
|
def_file_import *
|
|
def_file_add_import (def_file *fdef,
|
|
const char *name,
|
|
const char *module,
|
|
int ordinal,
|
|
const char *internal_name,
|
|
const char *its_name,
|
|
int *is_dup)
|
|
{
|
|
def_file_import *i;
|
|
int pos;
|
|
int max_imports = ROUND_UP (fdef->num_imports, 16);
|
|
|
|
/* We need to avoid here duplicates. */
|
|
*is_dup = 0;
|
|
pos = find_import_in_list (fdef->imports, fdef->num_imports,
|
|
name,
|
|
(!internal_name ? name : internal_name),
|
|
module, ordinal, is_dup);
|
|
if (*is_dup != 0)
|
|
return fdef->imports + pos;
|
|
|
|
if (fdef->num_imports >= max_imports)
|
|
{
|
|
max_imports = ROUND_UP (fdef->num_imports+1, 16);
|
|
|
|
if (fdef->imports)
|
|
fdef->imports = xrealloc (fdef->imports,
|
|
max_imports * sizeof (def_file_import));
|
|
else
|
|
fdef->imports = xmalloc (max_imports * sizeof (def_file_import));
|
|
}
|
|
i = fdef->imports + pos;
|
|
if (pos != fdef->num_imports)
|
|
memmove (i + 1, i, sizeof (def_file_import) * (fdef->num_imports - pos));
|
|
|
|
fill_in_import (i, name, def_stash_module (fdef, module), ordinal,
|
|
internal_name, its_name);
|
|
fdef->num_imports++;
|
|
|
|
return i;
|
|
}
|
|
|
|
int
|
|
def_file_add_import_from (def_file *fdef,
|
|
int num_imports,
|
|
const char *name,
|
|
const char *module,
|
|
int ordinal,
|
|
const char *internal_name,
|
|
const char *its_name ATTRIBUTE_UNUSED)
|
|
{
|
|
def_file_import *i;
|
|
int is_dup;
|
|
int pos;
|
|
int max_imports = ROUND_UP (fdef->num_imports, 16);
|
|
|
|
/* We need to avoid here duplicates. */
|
|
is_dup = 0;
|
|
pos = find_import_in_list (fdef->imports, fdef->num_imports,
|
|
name, internal_name ? internal_name : name,
|
|
module, ordinal, &is_dup);
|
|
if (is_dup != 0)
|
|
return -1;
|
|
if (fdef->imports && pos != fdef->num_imports)
|
|
{
|
|
i = fdef->imports + pos;
|
|
if (i->module && strcmp (i->module->name, module) == 0)
|
|
return -1;
|
|
}
|
|
|
|
if (fdef->num_imports + num_imports - 1 >= max_imports)
|
|
{
|
|
max_imports = ROUND_UP (fdef->num_imports + num_imports, 16);
|
|
|
|
if (fdef->imports)
|
|
fdef->imports = xrealloc (fdef->imports,
|
|
max_imports * sizeof (def_file_import));
|
|
else
|
|
fdef->imports = xmalloc (max_imports * sizeof (def_file_import));
|
|
}
|
|
i = fdef->imports + pos;
|
|
if (pos != fdef->num_imports)
|
|
memmove (i + num_imports, i,
|
|
sizeof (def_file_import) * (fdef->num_imports - pos));
|
|
|
|
return pos;
|
|
}
|
|
|
|
def_file_import *
|
|
def_file_add_import_at (def_file *fdef,
|
|
int pos,
|
|
const char *name,
|
|
const char *module,
|
|
int ordinal,
|
|
const char *internal_name,
|
|
const char *its_name)
|
|
{
|
|
def_file_import *i = fdef->imports + pos;
|
|
|
|
fill_in_import (i, name, def_stash_module (fdef, module), ordinal,
|
|
internal_name, its_name);
|
|
fdef->num_imports++;
|
|
|
|
return i;
|
|
}
|
|
|
|
struct
|
|
{
|
|
char *param;
|
|
int token;
|
|
}
|
|
diropts[] =
|
|
{
|
|
{ "-heap", HEAPSIZE },
|
|
{ "-stack", STACKSIZE_K },
|
|
{ "-attr", SECTIONS },
|
|
{ "-export", EXPORTS },
|
|
{ "-aligncomm", ALIGNCOMM },
|
|
{ 0, 0 }
|
|
};
|
|
|
|
void
|
|
def_file_add_directive (def_file *my_def, const char *param, int len)
|
|
{
|
|
def_file *save_def = def;
|
|
const char *pend = param + len;
|
|
char * tend = (char *) param;
|
|
int i;
|
|
|
|
def = my_def;
|
|
|
|
while (param < pend)
|
|
{
|
|
while (param < pend
|
|
&& (ISSPACE (*param) || *param == '\n' || *param == 0))
|
|
param++;
|
|
|
|
if (param == pend)
|
|
break;
|
|
|
|
/* Scan forward until we encounter any of:
|
|
- the end of the buffer
|
|
- the start of a new option
|
|
- a newline separating options
|
|
- a NUL separating options. */
|
|
for (tend = (char *) (param + 1);
|
|
(tend < pend
|
|
&& !(ISSPACE (tend[-1]) && *tend == '-')
|
|
&& *tend != '\n' && *tend != 0);
|
|
tend++)
|
|
;
|
|
|
|
for (i = 0; diropts[i].param; i++)
|
|
{
|
|
len = strlen (diropts[i].param);
|
|
|
|
if (tend - param >= len
|
|
&& strncmp (param, diropts[i].param, len) == 0
|
|
&& (param[len] == ':' || param[len] == ' '))
|
|
{
|
|
lex_parse_string_end = tend;
|
|
lex_parse_string = param + len + 1;
|
|
lex_forced_token = diropts[i].token;
|
|
saw_newline = 0;
|
|
if (def_parse ())
|
|
continue;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!diropts[i].param)
|
|
{
|
|
if (tend < pend)
|
|
{
|
|
char saved;
|
|
|
|
saved = * tend;
|
|
* tend = 0;
|
|
/* xgettext:c-format */
|
|
einfo (_("Warning: .drectve `%s' unrecognized\n"), param);
|
|
* tend = saved;
|
|
}
|
|
else
|
|
{
|
|
einfo (_("Warning: corrupt .drectve at end of def file\n"));
|
|
}
|
|
}
|
|
|
|
lex_parse_string = 0;
|
|
param = tend;
|
|
}
|
|
|
|
def = save_def;
|
|
def_pool_free ();
|
|
}
|
|
|
|
/* Parser Callbacks. */
|
|
|
|
static void
|
|
def_image_name (const char *name, bfd_vma base, int is_dll)
|
|
{
|
|
/* If a LIBRARY or NAME statement is specified without a name, there is nothing
|
|
to do here. We retain the output filename specified on command line. */
|
|
if (*name)
|
|
{
|
|
const char* image_name = lbasename (name);
|
|
|
|
if (image_name != name)
|
|
einfo ("%s:%d: Warning: path components stripped from %s, '%s'\n",
|
|
def_filename, linenumber, is_dll ? "LIBRARY" : "NAME",
|
|
name);
|
|
if (def->name)
|
|
free (def->name);
|
|
/* Append the default suffix, if none specified. */
|
|
if (strchr (image_name, '.') == 0)
|
|
{
|
|
const char * suffix = is_dll ? ".dll" : ".exe";
|
|
|
|
def->name = xmalloc (strlen (image_name) + strlen (suffix) + 1);
|
|
sprintf (def->name, "%s%s", image_name, suffix);
|
|
}
|
|
else
|
|
def->name = xstrdup (image_name);
|
|
}
|
|
|
|
/* Honor a BASE address statement, even if LIBRARY string is empty. */
|
|
def->base_address = base;
|
|
def->is_dll = is_dll;
|
|
}
|
|
|
|
static void
|
|
def_description (const char *text)
|
|
{
|
|
int len = def->description ? strlen (def->description) : 0;
|
|
|
|
len += strlen (text) + 1;
|
|
if (def->description)
|
|
{
|
|
def->description = xrealloc (def->description, len);
|
|
strcat (def->description, text);
|
|
}
|
|
else
|
|
{
|
|
def->description = xmalloc (len);
|
|
strcpy (def->description, text);
|
|
}
|
|
}
|
|
|
|
static void
|
|
def_stacksize (int reserve, int commit)
|
|
{
|
|
def->stack_reserve = reserve;
|
|
def->stack_commit = commit;
|
|
}
|
|
|
|
static void
|
|
def_heapsize (int reserve, int commit)
|
|
{
|
|
def->heap_reserve = reserve;
|
|
def->heap_commit = commit;
|
|
}
|
|
|
|
static void
|
|
def_section (const char *name, int attr)
|
|
{
|
|
def_file_section *s;
|
|
int max_sections = ROUND_UP (def->num_section_defs, 4);
|
|
|
|
if (def->num_section_defs >= max_sections)
|
|
{
|
|
max_sections = ROUND_UP (def->num_section_defs+1, 4);
|
|
|
|
if (def->section_defs)
|
|
def->section_defs = xrealloc (def->section_defs,
|
|
max_sections * sizeof (def_file_import));
|
|
else
|
|
def->section_defs = xmalloc (max_sections * sizeof (def_file_import));
|
|
}
|
|
s = def->section_defs + def->num_section_defs;
|
|
memset (s, 0, sizeof (def_file_section));
|
|
s->name = xstrdup (name);
|
|
if (attr & 1)
|
|
s->flag_read = 1;
|
|
if (attr & 2)
|
|
s->flag_write = 1;
|
|
if (attr & 4)
|
|
s->flag_execute = 1;
|
|
if (attr & 8)
|
|
s->flag_shared = 1;
|
|
|
|
def->num_section_defs++;
|
|
}
|
|
|
|
static void
|
|
def_section_alt (const char *name, const char *attr)
|
|
{
|
|
int aval = 0;
|
|
|
|
for (; *attr; attr++)
|
|
{
|
|
switch (*attr)
|
|
{
|
|
case 'R':
|
|
case 'r':
|
|
aval |= 1;
|
|
break;
|
|
case 'W':
|
|
case 'w':
|
|
aval |= 2;
|
|
break;
|
|
case 'X':
|
|
case 'x':
|
|
aval |= 4;
|
|
break;
|
|
case 'S':
|
|
case 's':
|
|
aval |= 8;
|
|
break;
|
|
}
|
|
}
|
|
def_section (name, aval);
|
|
}
|
|
|
|
static void
|
|
def_exports (const char *external_name,
|
|
const char *internal_name,
|
|
int ordinal,
|
|
int flags,
|
|
const char *its_name)
|
|
{
|
|
def_file_export *dfe;
|
|
int is_dup = 0;
|
|
|
|
if (!internal_name && external_name)
|
|
internal_name = external_name;
|
|
#if TRACE
|
|
printf ("def_exports, ext=%s int=%s\n", external_name, internal_name);
|
|
#endif
|
|
|
|
dfe = def_file_add_export (def, external_name, internal_name, ordinal,
|
|
its_name, &is_dup);
|
|
|
|
/* We might check here for flag redefinition and warn. For now we
|
|
ignore duplicates silently. */
|
|
if (is_dup)
|
|
return;
|
|
|
|
if (flags & 1)
|
|
dfe->flag_noname = 1;
|
|
if (flags & 2)
|
|
dfe->flag_constant = 1;
|
|
if (flags & 4)
|
|
dfe->flag_data = 1;
|
|
if (flags & 8)
|
|
dfe->flag_private = 1;
|
|
}
|
|
|
|
static void
|
|
def_import (const char *internal_name,
|
|
const char *module,
|
|
const char *dllext,
|
|
const char *name,
|
|
int ordinal,
|
|
const char *its_name)
|
|
{
|
|
char *buf = 0;
|
|
const char *ext = dllext ? dllext : "dll";
|
|
int is_dup = 0;
|
|
|
|
buf = xmalloc (strlen (module) + strlen (ext) + 2);
|
|
sprintf (buf, "%s.%s", module, ext);
|
|
module = buf;
|
|
|
|
def_file_add_import (def, name, module, ordinal, internal_name, its_name,
|
|
&is_dup);
|
|
free (buf);
|
|
}
|
|
|
|
static void
|
|
def_version (int major, int minor)
|
|
{
|
|
def->version_major = major;
|
|
def->version_minor = minor;
|
|
}
|
|
|
|
static void
|
|
def_directive (char *str)
|
|
{
|
|
struct directive *d = xmalloc (sizeof (struct directive));
|
|
|
|
d->next = directives;
|
|
directives = d;
|
|
d->name = xstrdup (str);
|
|
d->len = strlen (str);
|
|
}
|
|
|
|
static void
|
|
def_aligncomm (char *str, int align)
|
|
{
|
|
def_file_aligncomm *c, *p;
|
|
|
|
p = NULL;
|
|
c = def->aligncomms;
|
|
while (c != NULL)
|
|
{
|
|
int e = strcmp (c->symbol_name, str);
|
|
if (!e)
|
|
{
|
|
/* Not sure if we want to allow here duplicates with
|
|
different alignments, but for now we keep them. */
|
|
e = (int) c->alignment - align;
|
|
if (!e)
|
|
return;
|
|
}
|
|
if (e > 0)
|
|
break;
|
|
c = (p = c)->next;
|
|
}
|
|
|
|
c = xmalloc (sizeof (def_file_aligncomm));
|
|
c->symbol_name = xstrdup (str);
|
|
c->alignment = (unsigned int) align;
|
|
if (!p)
|
|
{
|
|
c->next = def->aligncomms;
|
|
def->aligncomms = c;
|
|
}
|
|
else
|
|
{
|
|
c->next = p->next;
|
|
p->next = c;
|
|
}
|
|
}
|
|
|
|
static int
|
|
def_error (const char *err)
|
|
{
|
|
einfo ("%P: %s:%d: %s\n",
|
|
def_filename ? def_filename : "<unknown-file>", linenumber, err);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Lexical Scanner. */
|
|
|
|
#undef TRACE
|
|
#define TRACE 0
|
|
|
|
/* Never freed, but always reused as needed, so no real leak. */
|
|
static char *buffer = 0;
|
|
static int buflen = 0;
|
|
static int bufptr = 0;
|
|
|
|
static void
|
|
put_buf (char c)
|
|
{
|
|
if (bufptr == buflen)
|
|
{
|
|
buflen += 50; /* overly reasonable, eh? */
|
|
if (buffer)
|
|
buffer = xrealloc (buffer, buflen + 1);
|
|
else
|
|
buffer = xmalloc (buflen + 1);
|
|
}
|
|
buffer[bufptr++] = c;
|
|
buffer[bufptr] = 0; /* not optimal, but very convenient. */
|
|
}
|
|
|
|
static struct
|
|
{
|
|
char *name;
|
|
int token;
|
|
}
|
|
tokens[] =
|
|
{
|
|
{ "BASE", BASE },
|
|
{ "CODE", CODE },
|
|
{ "CONSTANT", CONSTANTU },
|
|
{ "constant", CONSTANTL },
|
|
{ "DATA", DATAU },
|
|
{ "data", DATAL },
|
|
{ "DESCRIPTION", DESCRIPTION },
|
|
{ "DIRECTIVE", DIRECTIVE },
|
|
{ "EXECUTE", EXECUTE },
|
|
{ "EXPORTS", EXPORTS },
|
|
{ "HEAPSIZE", HEAPSIZE },
|
|
{ "IMPORTS", IMPORTS },
|
|
{ "LIBRARY", LIBRARY },
|
|
{ "NAME", NAME },
|
|
{ "NONAME", NONAMEU },
|
|
{ "noname", NONAMEL },
|
|
{ "PRIVATE", PRIVATEU },
|
|
{ "private", PRIVATEL },
|
|
{ "READ", READ },
|
|
{ "SECTIONS", SECTIONS },
|
|
{ "SEGMENTS", SECTIONS },
|
|
{ "SHARED", SHARED },
|
|
{ "STACKSIZE", STACKSIZE_K },
|
|
{ "VERSION", VERSIONK },
|
|
{ "WRITE", WRITE },
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static int
|
|
def_getc (void)
|
|
{
|
|
int rv;
|
|
|
|
if (lex_parse_string)
|
|
{
|
|
if (lex_parse_string >= lex_parse_string_end)
|
|
rv = EOF;
|
|
else
|
|
rv = *lex_parse_string++;
|
|
}
|
|
else
|
|
{
|
|
rv = fgetc (the_file);
|
|
}
|
|
if (rv == '\n')
|
|
saw_newline = 1;
|
|
return rv;
|
|
}
|
|
|
|
static int
|
|
def_ungetc (int c)
|
|
{
|
|
if (lex_parse_string)
|
|
{
|
|
lex_parse_string--;
|
|
return c;
|
|
}
|
|
else
|
|
return ungetc (c, the_file);
|
|
}
|
|
|
|
static int
|
|
def_lex (void)
|
|
{
|
|
int c, i, q;
|
|
|
|
if (lex_forced_token)
|
|
{
|
|
i = lex_forced_token;
|
|
lex_forced_token = 0;
|
|
#if TRACE
|
|
printf ("lex: forcing token %d\n", i);
|
|
#endif
|
|
return i;
|
|
}
|
|
|
|
c = def_getc ();
|
|
|
|
/* Trim leading whitespace. */
|
|
while (c != EOF && (c == ' ' || c == '\t') && saw_newline)
|
|
c = def_getc ();
|
|
|
|
if (c == EOF)
|
|
{
|
|
#if TRACE
|
|
printf ("lex: EOF\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
if (saw_newline && c == ';')
|
|
{
|
|
do
|
|
{
|
|
c = def_getc ();
|
|
}
|
|
while (c != EOF && c != '\n');
|
|
if (c == '\n')
|
|
return def_lex ();
|
|
return 0;
|
|
}
|
|
|
|
/* Must be something else. */
|
|
saw_newline = 0;
|
|
|
|
if (ISDIGIT (c))
|
|
{
|
|
bufptr = 0;
|
|
while (c != EOF && (ISXDIGIT (c) || (c == 'x')))
|
|
{
|
|
put_buf (c);
|
|
c = def_getc ();
|
|
}
|
|
if (c != EOF)
|
|
def_ungetc (c);
|
|
yylval.digits = def_pool_strdup (buffer);
|
|
#if TRACE
|
|
printf ("lex: `%s' returns DIGITS\n", buffer);
|
|
#endif
|
|
return DIGITS;
|
|
}
|
|
|
|
if (ISALPHA (c) || strchr ("$:-_?@", c))
|
|
{
|
|
bufptr = 0;
|
|
q = c;
|
|
put_buf (c);
|
|
c = def_getc ();
|
|
|
|
if (q == '@')
|
|
{
|
|
if (ISBLANK (c) ) /* '@' followed by whitespace. */
|
|
return (q);
|
|
else if (ISDIGIT (c)) /* '@' followed by digit. */
|
|
{
|
|
def_ungetc (c);
|
|
return (q);
|
|
}
|
|
#if TRACE
|
|
printf ("lex: @ returns itself\n");
|
|
#endif
|
|
}
|
|
|
|
while (c != EOF && (ISALNUM (c) || strchr ("$:-_?/@<>", c)))
|
|
{
|
|
put_buf (c);
|
|
c = def_getc ();
|
|
}
|
|
if (c != EOF)
|
|
def_ungetc (c);
|
|
if (ISALPHA (q)) /* Check for tokens. */
|
|
{
|
|
for (i = 0; tokens[i].name; i++)
|
|
if (strcmp (tokens[i].name, buffer) == 0)
|
|
{
|
|
#if TRACE
|
|
printf ("lex: `%s' is a string token\n", buffer);
|
|
#endif
|
|
return tokens[i].token;
|
|
}
|
|
}
|
|
#if TRACE
|
|
printf ("lex: `%s' returns ID\n", buffer);
|
|
#endif
|
|
yylval.id = def_pool_strdup (buffer);
|
|
return ID;
|
|
}
|
|
|
|
if (c == '\'' || c == '"')
|
|
{
|
|
q = c;
|
|
c = def_getc ();
|
|
bufptr = 0;
|
|
|
|
while (c != EOF && c != q)
|
|
{
|
|
put_buf (c);
|
|
c = def_getc ();
|
|
}
|
|
yylval.id = def_pool_strdup (buffer);
|
|
#if TRACE
|
|
printf ("lex: `%s' returns ID\n", buffer);
|
|
#endif
|
|
return ID;
|
|
}
|
|
|
|
if ( c == '=')
|
|
{
|
|
c = def_getc ();
|
|
if (c == '=')
|
|
{
|
|
#if TRACE
|
|
printf ("lex: `==' returns EQUAL\n");
|
|
#endif
|
|
return EQUAL;
|
|
}
|
|
def_ungetc (c);
|
|
#if TRACE
|
|
printf ("lex: `=' returns itself\n");
|
|
#endif
|
|
return '=';
|
|
}
|
|
if (c == '.' || c == ',')
|
|
{
|
|
#if TRACE
|
|
printf ("lex: `%c' returns itself\n", c);
|
|
#endif
|
|
return c;
|
|
}
|
|
|
|
if (c == '\n')
|
|
{
|
|
linenumber++;
|
|
saw_newline = 1;
|
|
}
|
|
|
|
/*printf ("lex: 0x%02x ignored\n", c); */
|
|
return def_lex ();
|
|
}
|
|
|
|
static char *
|
|
def_pool_alloc (size_t sz)
|
|
{
|
|
def_pool_str *e;
|
|
|
|
e = (def_pool_str *) xmalloc (sizeof (def_pool_str) + sz);
|
|
e->next = pool_strs;
|
|
pool_strs = e;
|
|
return e->data;
|
|
}
|
|
|
|
static char *
|
|
def_pool_strdup (const char *str)
|
|
{
|
|
char *s;
|
|
size_t len;
|
|
if (!str)
|
|
return NULL;
|
|
len = strlen (str) + 1;
|
|
s = def_pool_alloc (len);
|
|
memcpy (s, str, len);
|
|
return s;
|
|
}
|
|
|
|
static void
|
|
def_pool_free (void)
|
|
{
|
|
def_pool_str *p;
|
|
while ((p = pool_strs) != NULL)
|
|
{
|
|
pool_strs = p->next;
|
|
free (p);
|
|
}
|
|
}
|