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authorNick Clifton <nickc@redhat.com>2003-01-28 11:39:43 +0000
committerNick Clifton <nickc@redhat.com>2003-01-28 11:39:43 +0000
commita35bc64f56090692e1d45bc5754bacd679a132b9 (patch)
tree95ba36969f9c264b816bb28c54241e76368f95a7 /ld/deffilep.y
parenta7ed1ca20297f91205d0a92f6c55bdc1ef1acce5 (diff)
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Add code to prevent importing a dll multiple times.
Diffstat (limited to 'ld/deffilep.y')
-rw-r--r--ld/deffilep.y118
1 files changed, 76 insertions, 42 deletions
diff --git a/ld/deffilep.y b/ld/deffilep.y
index e9a6310..b44a6b3 100644
--- a/ld/deffilep.y
+++ b/ld/deffilep.y
@@ -1,23 +1,23 @@
%{ /* deffilep.y - parser for .def files */
-/* Copyright 1995, 1997, 1998, 1999, 2000, 2001, 2002
+/* Copyright 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
-This file is part of GNU Binutils.
+ This file is part of GNU Binutils.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include "libiberty.h"
@@ -37,7 +37,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
yacc generated parsers in ld. Note that these are only the variables
produced by yacc. If other parser generators (bison, byacc, etc) produce
additional global names that conflict at link time, then those parser
- generators need to be fixed instead of adding those names to this list. */
+ generators need to be fixed instead of adding those names to this list. */
#define yymaxdepth def_maxdepth
#define yyparse def_parse
@@ -66,8 +66,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define yy_yyv def_yyv
#define yyval def_val
#define yylloc def_lloc
-#define yyreds def_reds /* With YYDEBUG defined */
-#define yytoks def_toks /* With YYDEBUG defined */
+#define yyreds def_reds /* With YYDEBUG defined. */
+#define yytoks def_toks /* With YYDEBUG defined. */
#define yylhs def_yylhs
#define yylen def_yylen
#define yydefred def_yydefred
@@ -81,8 +81,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
static void def_description PARAMS ((const char *));
static void def_exports PARAMS ((const char *, const char *, int, int));
static void def_heapsize PARAMS ((int, int));
-static void def_import
- PARAMS ((const char *, const char *, const char *, const char *, int));
+static void def_import PARAMS ((const char *, const char *, const char *, const char *, int));
static void def_library PARAMS ((const char *, int));
static def_file_module *def_stash_module PARAMS ((def_file *, const char *));
static void def_name PARAMS ((const char *, int));
@@ -326,6 +325,7 @@ def_file_free (def)
def_file *def;
{
int i;
+
if (!def)
return;
if (def->name)
@@ -388,6 +388,7 @@ def_file_print (file, def)
def_file *def;
{
int i;
+
fprintf (file, ">>>> def_file at 0x%08x\n", def);
if (def->name)
fprintf (file, " name: %s\n", def->name ? def->name : "(unspecified)");
@@ -409,6 +410,7 @@ def_file_print (file, def)
if (def->num_section_defs > 0)
{
fprintf (file, " section defs:\n");
+
for (i = 0; i < def->num_section_defs; i++)
{
fprintf (file, " name: `%s', class: `%s', flags:",
@@ -428,6 +430,7 @@ def_file_print (file, def)
if (def->num_exports > 0)
{
fprintf (file, " exports:\n");
+
for (i = 0; i < def->num_exports; i++)
{
fprintf (file, " name: `%s', int: `%s', ordinal: %d, flags:",
@@ -448,6 +451,7 @@ def_file_print (file, def)
if (def->num_imports > 0)
{
fprintf (file, " imports:\n");
+
for (i = 0; i < def->num_imports; i++)
{
fprintf (file, " int: %s, from: `%s', name: `%s', ordinal: %d\n",
@@ -457,8 +461,10 @@ def_file_print (file, def)
def->imports[i].ordinal);
}
}
+
if (def->version_major != -1)
fprintf (file, " version: %d.%d\n", def->version_major, def->version_minor);
+
fprintf (file, "<<<< def_file at 0x%08x\n", def);
}
#endif
@@ -472,13 +478,16 @@ def_file_add_export (def, external_name, internal_name, ordinal)
{
def_file_export *e;
int max_exports = ROUND_UP(def->num_exports, 32);
+
if (def->num_exports >= max_exports)
{
- max_exports = ROUND_UP(def->num_exports+1, 32);
+ max_exports = ROUND_UP(def->num_exports + 1, 32);
if (def->exports)
- def->exports = (def_file_export *) xrealloc (def->exports, max_exports * sizeof (def_file_export));
+ def->exports = (def_file_export *)
+ xrealloc (def->exports, max_exports * sizeof (def_file_export));
else
- def->exports = (def_file_export *) xmalloc (max_exports * sizeof (def_file_export));
+ def->exports = (def_file_export *)
+ xmalloc (max_exports * sizeof (def_file_export));
}
e = def->exports + def->num_exports;
memset (e, 0, sizeof (def_file_export));
@@ -493,14 +502,28 @@ def_file_add_export (def, external_name, internal_name, ordinal)
return e;
}
+def_file_module *
+def_get_module (def, name)
+ def_file *def;
+ const char *name;
+{
+ def_file_module *s;
+
+ for (s = def->modules; s; s = s->next)
+ if (strcmp (s->name, name) == 0)
+ return s;
+
+ return (def_file_module *) 0;
+}
+
static def_file_module *
def_stash_module (def, name)
def_file *def;
const char *name;
{
def_file_module *s;
- for (s=def->modules; s; s=s->next)
- if (strcmp (s->name, name) == 0)
+
+ if ((s = def_get_module (def, name)) != (def_file_module *) 0)
return s;
s = (def_file_module *) xmalloc (sizeof (def_file_module) + strlen (name));
s->next = def->modules;
@@ -520,13 +543,17 @@ def_file_add_import (def, name, module, ordinal, internal_name)
{
def_file_import *i;
int max_imports = ROUND_UP(def->num_imports, 16);
+
if (def->num_imports >= max_imports)
{
max_imports = ROUND_UP(def->num_imports+1, 16);
+
if (def->imports)
- def->imports = (def_file_import *) xrealloc (def->imports, max_imports * sizeof (def_file_import));
+ def->imports = (def_file_import *)
+ xrealloc (def->imports, max_imports * sizeof (def_file_import));
else
- def->imports = (def_file_import *) xmalloc (max_imports * sizeof (def_file_import));
+ def->imports = (def_file_import *)
+ xmalloc (max_imports * sizeof (def_file_import));
}
i = def->imports + def->num_imports;
memset (i, 0, sizeof (def_file_import));
@@ -540,6 +567,7 @@ def_file_add_import (def, name, module, ordinal, internal_name)
else
i->internal_name = i->name;
def->num_imports++;
+
return i;
}
@@ -574,13 +602,16 @@ def_file_add_directive (my_def, param, len)
{
while (param < pend && ISSPACE (*param))
param++;
+
for (tend = param + 1;
tend < pend && !(ISSPACE (tend[-1]) && *tend == '-');
- tend++);
+ tend++)
+ ;
for (i = 0; diropts[i].param; i++)
{
int len = strlen (diropts[i].param);
+
if (tend - param >= len
&& strncmp (param, diropts[i].param, len) == 0
&& (param[len] == ':' || param[len] == ' '))
@@ -595,11 +626,10 @@ def_file_add_directive (my_def, param, len)
}
if (!diropts[i].param)
- {
- /* xgettext:c-format */
- einfo (_("Warning: .drectve `%.*s' unrecognized\n"),
- tend - param, param);
- }
+ /* xgettext:c-format */
+ einfo (_("Warning: .drectve `%.*s' unrecognized\n"),
+ tend - param, param);
+
lex_parse_string = 0;
param = tend;
}
@@ -607,9 +637,7 @@ def_file_add_directive (my_def, param, len)
def = save_def;
}
-/*****************************************************************************
- Parser Callbacks
- *****************************************************************************/
+/* Parser Callbacks. */
static void
def_name (name, base)
@@ -640,6 +668,7 @@ def_description (text)
const char *text;
{
int len = def->description ? strlen (def->description) : 0;
+
len += strlen (text) + 1;
if (def->description)
{
@@ -678,9 +707,11 @@ def_section (name, 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 = (def_file_section *) xrealloc (def->section_defs, max_sections * sizeof (def_file_import));
else
@@ -707,6 +738,7 @@ def_section_alt (name, attr)
const char *attr;
{
int aval = 0;
+
for (; *attr; attr++)
{
switch (*attr)
@@ -794,6 +826,7 @@ def_directive (str)
char *str;
{
struct directive *d = (struct directive *) xmalloc (sizeof (struct directive));
+
d->next = directives;
directives = d;
d->name = xstrdup (str);
@@ -810,14 +843,12 @@ def_error (err)
}
-/*****************************************************************************
- Lexical Scanner
- *****************************************************************************/
+/* Lexical Scanner. */
#undef TRACE
#define TRACE 0
-/* Never freed, but always reused as needed, so no real leak */
+/* Never freed, but always reused as needed, so no real leak. */
static char *buffer = 0;
static int buflen = 0;
static int bufptr = 0;
@@ -828,14 +859,14 @@ put_buf (c)
{
if (bufptr == buflen)
{
- buflen += 50; /* overly reasonable, eh? */
+ buflen += 50; /* overly reasonable, eh? */
if (buffer)
buffer = (char *) xrealloc (buffer, buflen + 1);
else
buffer = (char *) xmalloc (buflen + 1);
}
buffer[bufptr++] = c;
- buffer[bufptr] = 0; /* not optimal, but very convenient */
+ buffer[bufptr] = 0; /* not optimal, but very convenient. */
}
static struct
@@ -877,6 +908,7 @@ static int
def_getc ()
{
int rv;
+
if (lex_parse_string)
{
if (lex_parse_string >= lex_parse_string_end)
@@ -923,7 +955,7 @@ def_lex ()
c = def_getc ();
- /* trim leading whitespace */
+ /* Trim leading whitespace. */
while (c != EOF && (c == ' ' || c == '\t') && saw_newline)
c = def_getc ();
@@ -946,7 +978,8 @@ def_lex ()
return def_lex ();
return 0;
}
- /* must be something else */
+
+ /* Must be something else. */
saw_newline = 0;
if (ISDIGIT (c))
@@ -1017,6 +1050,7 @@ def_lex ()
q = c;
c = def_getc ();
bufptr = 0;
+
while (c != EOF && c != q)
{
put_buf (c);