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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.
128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
/* deffile.h - header for .DEF file parser
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Copyright (C) 1998-2018 Free Software Foundation, Inc.
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Written by DJ Delorie dj@cygnus.com
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This file is part of the 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, or (at your option)
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any later version.
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The 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 GLD; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef DEFFILE_H
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#define DEFFILE_H
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/* DEF storage definitions. Note that any ordinal may be zero, and
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any pointer may be NULL, if not defined by the DEF file. */
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typedef struct def_file_section {
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char *name; /* always set */
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char *class; /* may be NULL */
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char flag_read, flag_write, flag_execute, flag_shared;
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} def_file_section;
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typedef struct def_file_export {
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char *name; /* always set */
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char *internal_name; /* always set, may == name */
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char *its_name; /* optional export table name referred to. */
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int ordinal; /* -1 if not specified */
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int hint;
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char flag_private, flag_constant, flag_noname, flag_data, flag_forward;
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} def_file_export;
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typedef struct def_file_module {
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struct def_file_module *next;
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void *user_data;
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char name[1]; /* extended via malloc */
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} def_file_module;
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typedef struct def_file_import {
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char *internal_name; /* always set */
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def_file_module *module; /* always set */
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char *name; /* may be NULL; either this or ordinal will be set */
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char *its_name; /* optional import table name referred to. */
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int ordinal; /* may be -1 */
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int data; /* = 1 if data */
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} def_file_import;
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typedef struct def_file_aligncomm {
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struct def_file_aligncomm *next; /* Chain pointer. */
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char *symbol_name; /* Name of common symbol. */
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unsigned int alignment; /* log-2 alignment. */
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} def_file_aligncomm;
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typedef struct def_file {
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/* From the NAME or LIBRARY command. */
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char *name;
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int is_dll; /* -1 if NAME/LIBRARY not given */
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bfd_vma base_address; /* (bfd_vma)(-1) if unspecified */
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/* From the DESCRIPTION command. */
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char *description;
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/* From the STACK/HEAP command, -1 if unspecified. */
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int stack_reserve, stack_commit;
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int heap_reserve, heap_commit;
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/* From the SECTION/SEGMENT commands. */
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int num_section_defs;
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def_file_section *section_defs;
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/* From the EXPORTS commands. */
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int num_exports;
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def_file_export *exports;
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/* Used by imports for module names. */
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def_file_module *modules;
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/* From the IMPORTS commands. */
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int num_imports;
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def_file_import *imports;
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/* From the VERSION command, -1 if not specified. */
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int version_major, version_minor;
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/* Only expected from .drectve sections, not .DEF files. */
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def_file_aligncomm *aligncomms;
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} def_file;
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extern def_file *def_file_empty (void);
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/* The second arg may be NULL. If not, this .def is appended to it. */
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extern def_file *def_file_parse (const char *, def_file *);
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extern void def_file_free (def_file *);
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extern def_file_export *def_file_add_export (def_file *, const char *,
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const char *, int,
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const char *, int *);
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extern def_file_import *def_file_add_import (def_file *, const char *,
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const char *, int, const char *,
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const char *, int *);
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extern int def_file_add_import_from (def_file *fdef,
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int num_imports,
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const char *name,
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const char *module,
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int ordinal,
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const char *internal_name,
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const char *its_name);
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extern def_file_import *def_file_add_import_at (def_file *, int, const char *,
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const char *, int, const char *,
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const char *);
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extern void def_file_add_directive (def_file *, const char *, int);
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extern def_file_module *def_get_module (def_file *, const char *);
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#ifdef DEF_FILE_PRINT
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extern void def_file_print (FILE *, def_file *);
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#endif
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#endif /* DEFFILE_H */
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