OpenE2K/binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
2819d3d65f
binutils-gdb/binutils/dlltool.c
Geoffrey Noer d5556e2ab7 Sun Oct 25 10:37:45 1998 Mumit Khan <khan@xraylith.wisc.edu> 
* dlltool.c (scan_all_symbols): Fix patch error.
1998-10-26 01:23:29 +00:00

3131 lines
77 KiB
C
Raw Blame History

/* dlltool.c -- tool to generate stuff for PE style DLLs
Copyright (C) 1995, 96, 97, 1998 Free Software Foundation, Inc.
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 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. */
/*
This program allows you to build the files necessary to create
DLLs to run on a system which understands PE format image files.
(eg, Windows NT)
See "Peering Inside the PE: A Tour of the Win32 Portable Executable
File Format", MSJ 1994, Volume 9 for more information.
Also see "Microsoft Portable Executable and Common Object File Format,
Specification 4.1" for more information.
A DLL contains an export table which contains the information
which the runtime loader needs to tie up references from a
referencing program.
The export table is generated by this program by reading
in a .DEF file or scanning the .a and .o files which will be in the
DLL. A .o file can contain information in special ".drectve" sections
with export information.
A DEF file contains any number of the following commands:
NAME <name> [ , <base> ]
The result is going to be <name>.EXE
LIBRARY <name> [ , <base> ]
The result is going to be <name>.DLL
EXPORTS ( <name1> [ = <name2> ] [ @ <integer> ] [ NONAME ] [CONSTANT] [DATA] ) *
Declares name1 as an exported symbol from the
DLL, with optional ordinal number <integer>
IMPORTS ( ( <internal-name> = <module-name> . <integer> )
| ( [ <internal-name> = ] <module-name> . <external-name> )) *
Declares that <external-name> or the exported function whoes ordinal number
is <integer> is to be imported from the file <module-name>. If
<internal-name> is specified then this is the name that the imported
function will be refered to in the body of the DLL.
DESCRIPTION <string>
Puts <string> into output .exp file in the .rdata section
[STACKSIZE|HEAPSIZE] <number-reserve> [ , <number-commit> ]
Generates --stack|--heap <number-reserve>,<number-commit>
in the output .drectve section. The linker will
see this and act upon it.
[CODE|DATA] <attr>+
SECTIONS ( <sectionname> <attr>+ )*
<attr> = READ | WRITE | EXECUTE | SHARED
Generates --attr <sectionname> <attr> in the output
.drectve section. The linker will see this and act
upon it.
A -export:<name> in a .drectve section in an input .o or .a
file to this program is equivalent to a EXPORTS <name>
in a .DEF file.
The program generates output files with the prefix supplied
on the command line, or in the def file, or taken from the first
supplied argument.
The .exp.s file contains the information necessary to export
the routines in the DLL. The .lib.s file contains the information
necessary to use the DLL's routines from a referencing program.
Example:
file1.c:
asm (".section .drectve");
asm (".ascii \"-export:adef\"");
void adef (char * s)
{
printf ("hello from the dll %s\n", s);
}
void bdef (char * s)
{
printf ("hello from the dll and the other entry point %s\n", s);
}
file2.c:
asm (".section .drectve");
asm (".ascii \"-export:cdef\"");
asm (".ascii \"-export:ddef\"");
void cdef (char * s)
{
printf ("hello from the dll %s\n", s);
}
void ddef (char * s)
{
printf ("hello from the dll and the other entry point %s\n", s);
}
printf()
{
return 9;
}
main.c
void main()
{
cdef();
}
thedll.def
LIBRARY thedll
HEAPSIZE 0x40000, 0x2000
EXPORTS bdef @ 20
cdef @ 30 NONAME
SECTIONS donkey READ WRITE
aardvark EXECUTE
# compile up the parts of the dll
gcc -c file1.c
gcc -c file2.c
# put them in a library (you don't have to, you
# could name all the .os on the dlltool line)
ar qcv thedll.in file1.o file2.o
ranlib thedll.in
# run this tool over the library and the def file
./dlltool --def thedll.def --output-exp thedll.o --output-lib thedll.a
# build the dll with the library with file1.o, file2.o and the export table
ld -o thedll.dll thedll.o thedll.in
# build the mainline
gcc -c themain.c
# link the executable with the import library
ld -e main -Tthemain.ld -o themain.exe themain.o thedll.a
*/
/* .idata section description
The .idata section is the import table. It is a collection of several
subsections used to keep the pieces for each dll together: .idata$[234567].
IE: Each dll's .idata$2's are catenated together, each .idata$3's, etc.
.idata$2 = Import Directory Table
= array of IMAGE_IMPORT_DESCRIPTOR's.
DWORD Import Lookup Table; - pointer to .idata$4
DWORD TimeDateStamp; - currently always 0
DWORD ForwarderChain; - currently always 0
DWORD Name; - pointer to dll's name
PIMAGE_THUNK_DATA FirstThunk; - pointer to .idata$5
.idata$3 = null terminating entry for .idata$2.
.idata$4 = Import Lookup Table
= array of array of pointers to hint name table.
There is one for each dll being imported from, and each dll's set is
terminated by a trailing NULL.
.idata$5 = Import Address Table
= array of array of pointers to hint name table.
There is one for each dll being imported from, and each dll's set is
terminated by a trailing NULL.
Initially, this table is identical to the Import Lookup Table. However,
at load time, the loader overwrites the entries with the address of the
function.
.idata$6 = Hint Name Table
= Array of { short, asciz } entries, one for each imported function.
The `short' is the function's ordinal number.
.idata$7 = dll name (eg: "kernel32.dll"). (.idata$6 for ppc)
*/
/* AIX requires this to be the first thing in the file. */
#ifndef __GNUC__
# ifdef _AIX
#pragma alloca
#endif
#endif
#define show_allnames 0
#define PAGE_SIZE 4096
#define PAGE_MASK (-PAGE_SIZE)
#include "bfd.h"
#include "libiberty.h"
#include "bucomm.h"
#include "getopt.h"
#include "demangle.h"
#include "dlltool.h"
#include <ctype.h>
#include <time.h>
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#ifdef DLLTOOL_ARM
#include "coff/arm.h"
#include "coff/internal.h"
#endif
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#else /* ! HAVE_SYS_WAIT_H */
#if ! defined (_WIN32) || defined (__CYGWIN32__)
#ifndef WIFEXITED
#define WIFEXITED(w) (((w)&0377) == 0)
#endif
#ifndef WIFSIGNALED
#define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
#endif
#ifndef WTERMSIG
#define WTERMSIG(w) ((w) & 0177)
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(w) (((w) >> 8) & 0377)
#endif
#else /* defined (_WIN32) && ! defined (__CYGWIN32__) */
#ifndef WIFEXITED
#define WIFEXITED(w) (((w) & 0xff) == 0)
#endif
#ifndef WIFSIGNALED
#define WIFSIGNALED(w) (((w) & 0xff) != 0 && ((w) & 0xff) != 0x7f)
#endif
#ifndef WTERMSIG
#define WTERMSIG(w) ((w) & 0x7f)
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(w) (((w) & 0xff00) >> 8)
#endif
#endif /* defined (_WIN32) && ! defined (__CYGWIN32__) */
#endif /* ! HAVE_SYS_WAIT_H */
/* ifunc and ihead data structures: ttk@cygnus.com 1997
When IMPORT declarations are encountered in a .def file the
function import information is stored in a structure referenced by
the global variable IMPORT_LIST. The structure is a linked list
containing the names of the dll files each function is imported
from and a linked list of functions being imported from that dll
file. This roughly parallels the structure of the .idata section
in the PE object file.
The contents of .def file are interpreted from within the
process_def_file function. Every time an IMPORT declaration is
encountered, it is broken up into its component parts and passed to
def_import. IMPORT_LIST is initialized to NULL in function main. */
typedef struct ifunct
{
char *name; /* name of function being imported */
int ord; /* two-byte ordinal value associated with function */
struct ifunct *next;
} ifunctype;
typedef struct iheadt
{
char *dllname; /* name of dll file imported from */
long nfuncs; /* number of functions in list */
struct ifunct *funchead; /* first function in list */
struct ifunct *functail; /* last function in list */
struct iheadt *next; /* next dll file in list */
} iheadtype;
/* Structure containing all import information as defined in .def file
(qv "ihead structure"). */
static iheadtype *import_list = NULL;
static char *as_name = "as";
static char * as_flags = "";
static int no_idata4;
static int no_idata5;
static char *exp_name;
static char *imp_name;
static char *head_label;
static char *imp_name_lab;
static char *dll_name;
static int add_indirect = 0;
static int add_underscore = 0;
static int dontdeltemps = 0;
#ifdef DLLTOOL_ARM
static int interwork = 0;
#endif
/* True if we should export all symbols. Otherwise, we only export
symbols listed in .drectve sections or in the def file. */
static boolean export_all_symbols;
/* True if we should exclude the symbols in DEFAULT_EXCLUDES when
exporting all symbols. */
static boolean do_default_excludes;
/* Default symbols to exclude when exporting all the symbols. */
static const char *default_excludes = "DllMain@12,DllEntryPoint@0,impure_ptr";
static char *def_file;
extern char * program_name;
static int machine;
static int killat;
static int verbose;
static FILE *output_def;
static FILE *base_file;
#ifdef DLLTOOL_ARM
static const char *mname = "arm";
#endif
#ifdef DLLTOOL_I386
static const char *mname = "i386";
#endif
#ifdef DLLTOOL_PPC
static const char *mname = "ppc";
#endif
#define PATHMAX 250 /* What's the right name for this ? */
#define TMP_ASM "dc.s"
#define TMP_HEAD_S "dh.s"
#define TMP_HEAD_O "dh.o"
#define TMP_TAIL_S "dt.s"
#define TMP_TAIL_O "dt.o"
#define TMP_STUB "ds"
/* This bit of assemly does jmp * ....
s set how_jtab_roff to mark where the 32bit abs branch should go */
static const unsigned char i386_jtab[] =
{
0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90
};
static const unsigned char arm_jtab[] =
{
0x00, 0xc0, 0x9f, 0xe5,
0x00, 0xf0, 0x9c, 0xe5,
0, 0, 0, 0
};
static const unsigned char thumb_jtab[] =
{
0xc0, 0xb4,
0x02, 0x4e,
0x36, 0x68,
0x01, 0x96,
0x40, 0xbd,
0xc0, 0x46,
0, 0, 0, 0
};
/* This is the glue sequence for PowerPC PE. There is a */
/* tocrel16-tocdefn reloc against the first instruction. */
/* We also need a IMGLUE reloc against the glue function */
/* to restore the toc saved by the third instruction in */
/* the glue. */
static const unsigned char ppc_jtab[] =
{
0x00, 0x00, 0x62, 0x81, /* lwz r11,0(r2) */
/* Reloc TOCREL16 __imp_xxx */
0x00, 0x00, 0x8B, 0x81, /* lwz r12,0(r11) */
0x04, 0x00, 0x41, 0x90, /* stw r2,4(r1) */
0xA6, 0x03, 0x89, 0x7D, /* mtctr r12 */
0x04, 0x00, 0x4B, 0x80, /* lwz r2,4(r11) */
0x20, 0x04, 0x80, 0x4E /* bctr */
};
#ifdef DLLTOOL_PPC
/* the glue instruction, picks up the toc from the stw in */
/* the above code: "lwz r2,4(r1)" */
static bfd_vma ppc_glue_insn = 0x80410004;
#endif
/* The outfile array must be big enough to contain a fully
qualified path name, plus an arbitary series of command
line switches. We hope that PATH_MAX times two will be
enough. */
static char outfile [PATHMAX * 2];
struct mac
{
const char *type;
const char *how_byte;
const char *how_short;
const char *how_long;
const char *how_asciz;
const char *how_comment;
const char *how_jump;
const char *how_global;
const char *how_space;
const char *how_align_short;
const char *how_align_long;
const char *how_bfd_target;
enum bfd_architecture how_bfd_arch;
const unsigned char *how_jtab;
int how_jtab_size; /* size of the jtab entry */
int how_jtab_roff; /* offset into it for the ind 32 reloc into idata 5 */
};
static const struct mac
mtable[] =
{
{
#define MARM 0
"arm", ".byte", ".short", ".long", ".asciz", "@",
"ldr\tip,[pc]\n\tldr\tpc,[ip]\n\t.long",
".global", ".space", ".align\t2",".align\t4","pe-arm-little", bfd_arch_arm,
arm_jtab, sizeof (arm_jtab), 8
}
,
{
#define M386 1
"i386", ".byte", ".short", ".long", ".asciz", "#", "jmp *", ".global", ".space", ".align\t2",".align\t4","pe-i386",bfd_arch_i386,
i386_jtab, sizeof (i386_jtab), 2
}
,
{
#define MPPC 2
"ppc", ".byte", ".short", ".long", ".asciz", "#", "jmp *", ".global", ".space", ".align\t2",".align\t4","pe-powerpcle",bfd_arch_powerpc,
ppc_jtab, sizeof (ppc_jtab), 0
}
,
{
#define MTHUMB 3
"thumb", ".byte", ".short", ".long", ".asciz", "@",
"push\t{r6, r7}\n\tldr\tr6, [pc, #8]\n\tldr\tr6, [r6]\n\tstr\tr6, [sp, #4]\n\tpop\t{r6, pc}\n\tnop",
".global", ".space", ".align\t2",".align\t4","pe-arm-little", bfd_arch_arm,
thumb_jtab, sizeof (thumb_jtab), 12
}
,
{ 0}
};
typedef struct dlist
{
char *text;
struct dlist *next;
}
dlist_type;
typedef struct export
{
const char *name;
const char *internal_name;
int ordinal;
int constant;
int noname;
int data;
int hint;
struct export *next;
}
export_type;
/* A list of symbols which we should not export. */
struct string_list
{
struct string_list *next;
char *string;
};
static struct string_list *excludes;
static const char *rvaafter PARAMS ((int));
static const char *rvabefore PARAMS ((int));
static const char *asm_prefix PARAMS ((int));
static void append_import PARAMS ((const char *, const char *, int));
static void run PARAMS ((const char *, char *));
static void scan_drectve_symbols PARAMS ((bfd *));
static void scan_filtered_symbols PARAMS ((bfd *, PTR, long, unsigned int));
static void add_excludes PARAMS ((const char *));
static boolean match_exclude PARAMS ((const char *));
static void set_default_excludes PARAMS ((void));
static long filter_symbols PARAMS ((bfd *, PTR, long, unsigned int));
static void scan_all_symbols PARAMS ((bfd *));
static void scan_open_obj_file PARAMS ((bfd *));
static void scan_obj_file PARAMS ((const char *));
static void dump_def_info PARAMS ((FILE *));
static int sfunc PARAMS ((const void *, const void *));
static void flush_page PARAMS ((FILE *, long *, int, int));
static void gen_def_file PARAMS ((void));
static void generate_idata_ofile PARAMS ((FILE *));
static void gen_exp_file PARAMS ((void));
static const char *xlate PARAMS ((const char *));
#if 0
static void dump_iat PARAMS ((FILE *, export_type *));
#endif
static char *make_label PARAMS ((const char *, const char *));
static bfd *make_one_lib_file PARAMS ((export_type *, int));
static bfd *make_head PARAMS ((void));
static bfd *make_tail PARAMS ((void));
static void gen_lib_file PARAMS ((void));
static int pfunc PARAMS ((const void *, const void *));
static int nfunc PARAMS ((const void *, const void *));
static void remove_null_names PARAMS ((export_type **));
static void dtab PARAMS ((export_type **));
static void process_duplicates PARAMS ((export_type **));
static void fill_ordinals PARAMS ((export_type **));
static int alphafunc PARAMS ((const void *, const void *));
static void mangle_defs PARAMS ((void));
static void usage PARAMS ((FILE *, int));
static void display PARAMS ((const char *, va_list));
static void inform PARAMS ((const char *, ...));
static void warn PARAMS ((const char *, ...));
static void
display (message, args)
const char * message;
va_list args;
{
if (program_name != NULL)
fprintf (stderr, "%s: ", program_name);
vfprintf (stderr, message, args);
if (message [strlen (message) - 1] != '\n')
fputc ('\n', stderr);
}
static void
#ifdef __STDC__
inform (const char * message, ...)
#else
inform (message, va_alist)
const char * message;
va_dcl
#endif
{
va_list args;
if (!verbose)
return;
#ifdef __STDC__
va_start (args, message);
#else
va_start (args);
#endif
display (message, args);
va_end (args);
}
static void
#ifdef __STDC__
warn (const char * message, ...)
#else
warn (message, va_alist)
const char * message;
va_dcl
#endif
{
va_list args;
#ifdef __STDC__
va_start (args, message);
#else
va_start (args);
#endif
display (message, args);
va_end (args);
}
static const char *
rvaafter (machine)
int machine;
{
switch (machine)
{
case MARM:
case M386:
case MPPC:
case MTHUMB:
break;
default:
/* xgettext:c-format */
fatal (_("Internal error: Unknown machine type: %d\n"), machine);
break;
}
return "";
}
static const char *
rvabefore (machine)
int machine;
{
switch (machine)
{
case MARM:
case M386:
case MPPC:
case MTHUMB:
return ".rva\t";
default:
/* xgettext:c-format */
fatal (_("Internal error: Unknown machine type: %d\n"), machine);
break;
}
return "";
}
static const char *
asm_prefix (machine)
int machine;
{
switch (machine)
{
case MARM:
case MPPC:
case MTHUMB:
break;
case M386:
return "_";
default:
/* xgettext:c-format */
fatal (_("Internal error: Unknown machine type: %d\n"), machine);
break;
}
return "";
}
#define ASM_BYTE mtable[machine].how_byte
#define ASM_SHORT mtable[machine].how_short
#define ASM_LONG mtable[machine].how_long
#define ASM_TEXT mtable[machine].how_asciz
#define ASM_C mtable[machine].how_comment
#define ASM_JUMP mtable[machine].how_jump
#define ASM_GLOBAL mtable[machine].how_global
#define ASM_SPACE mtable[machine].how_space
#define ASM_ALIGN_SHORT mtable[machine].how_align_short
#define ASM_RVA_BEFORE rvabefore(machine)
#define ASM_RVA_AFTER rvaafter(machine)
#define ASM_PREFIX asm_prefix(machine)
#define ASM_ALIGN_LONG mtable[machine].how_align_long
#define HOW_BFD_TARGET 0 /* always default*/
#define HOW_BFD_ARCH mtable[machine].how_bfd_arch
#define HOW_JTAB mtable[machine].how_jtab
#define HOW_JTAB_SIZE mtable[machine].how_jtab_size
#define HOW_JTAB_ROFF mtable[machine].how_jtab_roff
static char **oav;
void
process_def_file (name)
const char *name;
{
FILE *f = fopen (name, FOPEN_RT);
if (!f)
/* xgettext:c-format */
fatal (_("Can't open def file: %s"), name);
yyin = f;
/* xgettext:c-format */
inform (_("Processing def file: %s"), name);
yyparse ();
inform (_("Processed def file"));
}
/**********************************************************************/
/* Communications with the parser */
static const char *d_name; /* Arg to NAME or LIBRARY */
static int d_nfuncs; /* Number of functions exported */
static int d_named_nfuncs; /* Number of named functions exported */
static int d_low_ord; /* Lowest ordinal index */
static int d_high_ord; /* Highest ordinal index */
static export_type *d_exports; /*list of exported functions */
static export_type **d_exports_lexically; /* vector of exported functions in alpha order */
static dlist_type *d_list; /* Descriptions */
static dlist_type *a_list; /* Stuff to go in directives */
static int d_is_dll;
static int d_is_exe;
int
yyerror (err)
const char *err;
{
/* xgettext:c-format */
warn (_("Syntax error in def file %s:%d\n"), def_file, linenumber);
return 0;
}
void
def_exports (name, internal_name, ordinal, noname, constant, data)
const char *name;
const char *internal_name;
int ordinal;
int noname;
int constant;
int data;
{
struct export *p = (struct export *) xmalloc (sizeof (*p));
p->name = name;
p->internal_name = internal_name ? internal_name : name;
p->ordinal = ordinal;
p->constant = constant;
p->noname = noname;
p->data = data;
p->next = d_exports;
d_exports = p;
d_nfuncs++;
}
void
def_name (name, base)
const char *name;
int base;
{
/* xgettext:c-format */
inform (_("NAME: %s base: %x"), name, base);
if (d_is_dll)
warn (_("Can't have LIBRARY and NAME\n"));
d_name = name;
d_is_exe = 1;
}
void
def_library (name, base)
const char *name;
int base;
{
/* xgettext:c-format */
inform (_("LIBRARY: %s base: %x"), name, base);
if (d_is_exe)
warn (_("%s: Can't have LIBRARY and NAME\n"), program_name);
d_name = name;
d_is_dll = 1;
}
void
def_description (desc)
const char *desc;
{
dlist_type *d = (dlist_type *) xmalloc (sizeof (dlist_type));
d->text = xstrdup (desc);
d->next = d_list;
d_list = d;
}
void
new_directive (dir)
char *dir;
{
dlist_type *d = (dlist_type *) xmalloc (sizeof (dlist_type));
d->text = xstrdup (dir);
d->next = a_list;
a_list = d;
}
void
def_heapsize (reserve, commit)
int reserve;
int commit;
{
char b[200];
if (commit > 0)
sprintf (b, "-heap 0x%x,0x%x ", reserve, commit);
else
sprintf (b, "-heap 0x%x ", reserve);
new_directive (xstrdup (b));
}
void
def_stacksize (reserve, commit)
int reserve;
int commit;
{
char b[200];
if (commit > 0)
sprintf (b, "-stack 0x%x,0x%x ", reserve, commit);
else
sprintf (b, "-stack 0x%x ", reserve);
new_directive (xstrdup (b));
}
/* append_import simply adds the given import definition to the global
import_list. It is used by def_import. */
static void
append_import (symbol_name, dll_name, func_ordinal)
const char *symbol_name;
const char *dll_name;
int func_ordinal;
{
iheadtype **pq;
iheadtype *q;
for (pq = &import_list; *pq != NULL; pq = &(*pq)->next)
{
if (strcmp ((*pq)->dllname, dll_name) == 0)
{
q = *pq;
q->functail->next = xmalloc (sizeof (ifunctype));
q->functail = q->functail->next;
q->functail->ord = func_ordinal;
q->functail->name = xstrdup (symbol_name);
q->functail->next = NULL;
q->nfuncs++;
return;
}
}
q = xmalloc (sizeof (iheadtype));
q->dllname = xstrdup (dll_name);
q->nfuncs = 1;
q->funchead = xmalloc (sizeof (ifunctype));
q->functail = q->funchead;
q->next = NULL;
q->functail->name = xstrdup (symbol_name);
q->functail->ord = func_ordinal;
q->functail->next = NULL;
*pq = q;
}
/* def_import is called from within defparse.y when an IMPORT
declaration is encountered. Depending on the form of the
declaration, the module name may or may not need ".dll" to be
appended to it, the name of the function may be stored in internal
or entry, and there may or may not be an ordinal value associated
with it. */
/* A note regarding the parse modes:
In defparse.y we have to accept import declarations which follow
any one of the following forms:
<func_name_in_app> = <dll_name>.<func_name_in_dll>
<func_name_in_app> = <dll_name>.<number>
<dll_name>.<func_name_in_dll>
<dll_name>.<number>
Furthermore, the dll's name may or may not end with ".dll", which
complicates the parsing a little. Normally the dll's name is
passed to def_import() in the "module" parameter, but when it ends
with ".dll" it gets passed in "module" sans ".dll" and that needs
to be reappended.
def_import gets five parameters:
APP_NAME - the name of the function in the application, if
present, or NULL if not present.
MODULE - the name of the dll, possibly sans extension (ie, '.dll').
DLLEXT - the extension of the dll, if present, NULL if not present.
ENTRY - the name of the function in the dll, if present, or NULL.
ORD_VAL - the numerical tag of the function in the dll, if present,
or NULL. Exactly one of <entry> or <ord_val> must be
present (i.e., not NULL). */
void
def_import (app_name, module, dllext, entry, ord_val)
const char *app_name;
const char *module;
const char *dllext;
const char *entry;
int ord_val;
{
const char *application_name;
char *buf;
if (entry != NULL)
application_name = entry;
else
{
if (app_name != NULL)
application_name = app_name;
else
application_name = "";
}
if (dllext != NULL)
{
buf = (char *) alloca (strlen (module) + strlen (dllext) + 2);
sprintf (buf, "%s.%s", module, dllext);
module = buf;
}
append_import (application_name, module, ord_val);
}
void
def_version (major, minor)
int major;
int minor;
{
printf ("VERSION %d.%d\n", major, minor);
}
void
def_section (name, attr)
const char *name;
int attr;
{
char buf[200];
char atts[5];
char *d = atts;
if (attr & 1)
*d++ = 'R';
if (attr & 2)
*d++ = 'W';
if (attr & 4)
*d++ = 'X';
if (attr & 8)
*d++ = 'S';
*d++ = 0;
sprintf (buf, "-attr %s %s", name, atts);
new_directive (xstrdup (buf));
}
void
def_code (attr)
int attr;
{
def_section ("CODE", attr);
}
void
def_data (attr)
int attr;
{
def_section ("DATA", attr);
}
/**********************************************************************/
static void
run (what, args)
const char *what;
char *args;
{
char *s;
int pid, wait_status;
int i;
const char **argv;
char *errmsg_fmt, *errmsg_arg;
char *temp_base = choose_temp_base ();
inform ("run: %s %s\n", what, args);
/* Count the args */
i = 0;
for (s = args; *s; s++)
if (*s == ' ')
i++;
i++;
argv = alloca (sizeof (char *) * (i + 3));
i = 0;
argv[i++] = what;
s = args;
while (1)
{
while (*s == ' ')
++s;
argv[i++] = s;
while (*s != ' ' && *s != 0)
s++;
if (*s == 0)
break;
*s++ = 0;
}
argv[i++] = NULL;
pid = pexecute (argv[0], (char * const *) argv, program_name, temp_base,
&errmsg_fmt, &errmsg_arg, PEXECUTE_ONE | PEXECUTE_SEARCH);
if (pid == -1)
{
inform (strerror (errno));
fatal (errmsg_fmt, errmsg_arg);
}
pid = pwait (pid, & wait_status, 0);
if (pid == -1)
{
/* xgettext:c-format */
fatal (_("wait: %s"), strerror (errno));
}
else if (WIFSIGNALED (wait_status))
{
/* xgettext:c-format */
fatal (_("subprocess got fatal signal %d"), WTERMSIG (wait_status));
}
else if (WIFEXITED (wait_status))
{
if (WEXITSTATUS (wait_status) != 0)
/* xgettext:c-format */
warn (_("%s exited with status %d\n"),
what, WEXITSTATUS (wait_status));
}
else
abort ();
}
/* Look for a list of symbols to export in the .drectve section of
ABFD. Pass each one to def_exports. */
static void
scan_drectve_symbols (abfd)
bfd *abfd;
{
asection * s;
int size;
char * buf;
char * p;
char * e;
/* Look for .drectve's */
s = bfd_get_section_by_name (abfd, ".drectve");
if (s == NULL)
return;
size = bfd_get_section_size_before_reloc (s);
buf = xmalloc (size);
bfd_get_section_contents (abfd, s, buf, 0, size);
/* xgettext:c-format */
inform (_("Sucking in info from .drective section in %s\n"),
bfd_get_filename (abfd));
/* Search for -export: strings */
p = buf;
e = buf + size;
while (p < e)
{
if (p[0] == '-'
&& strncmp (p, "-export:", 8) == 0)
{
char * name;
char * c;
p += 8;
name = p;
while (p < e && *p != ' ' && *p != '-')
p++;
c = xmalloc (p - name + 1);
memcpy (c, name, p - name);
c[p - name] = 0;
/* FIXME: The 5th arg is for the `constant' field.
What should it be? Not that it matters since it's not
currently useful. */
def_exports (c, 0, -1, 0, 0, 0);
}
else
p++;
}
free (buf);
}
/* Look through the symbols in MINISYMS, and add each one to list of
symbols to export. */
static void
scan_filtered_symbols (abfd, minisyms, symcount, size)
bfd *abfd;
PTR minisyms;
long symcount;
unsigned int size;
{
asymbol *store;
bfd_byte *from, *fromend;
store = bfd_make_empty_symbol (abfd);
if (store == NULL)
bfd_fatal (bfd_get_filename (abfd));
from = (bfd_byte *) minisyms;
fromend = from + symcount * size;
for (; from < fromend; from += size)
{
asymbol *sym;
const char *symbol_name;
sym = bfd_minisymbol_to_symbol (abfd, false, from, store);
if (sym == NULL)
bfd_fatal (bfd_get_filename (abfd));
symbol_name = bfd_asymbol_name (sym);
if (bfd_get_symbol_leading_char (abfd) == symbol_name[0])
++symbol_name;
def_exports (xstrdup (symbol_name), 0, -1, 0, 0, 0);
}
}
/* Add a list of symbols to exclude. */
static void
add_excludes (new_excludes)
const char *new_excludes;
{
char *local_copy;
char *exclude_string;
local_copy = xstrdup (new_excludes);
exclude_string = strtok (local_copy, ",:");
for (; exclude_string; exclude_string = strtok (NULL, ",:"))
{
struct string_list *new_exclude;
new_exclude = ((struct string_list *)
xmalloc (sizeof (struct string_list)));
new_exclude->string = (char *) xmalloc (strlen (exclude_string) + 2);
/* FIXME: Is it always right to add a leading underscore? */
sprintf (new_exclude->string, "_%s", exclude_string);
new_exclude->next = excludes;
excludes = new_exclude;
/* xgettext:c-format */
inform (_("Excluding symbol: %s\n"), exclude_string);
}
free (local_copy);
}
/* See if STRING is on the list of symbols to exclude. */
static boolean
match_exclude (string)
const char *string;
{
struct string_list *excl_item;
for (excl_item = excludes; excl_item; excl_item = excl_item->next)
if (strcmp (string, excl_item->string) == 0)
return true;
return false;
}
/* Add the default list of symbols to exclude. */
static void
set_default_excludes (void)
{
add_excludes (default_excludes);
}
/* Choose which symbols to export. */
static long
filter_symbols (abfd, minisyms, symcount, size)
bfd *abfd;
PTR minisyms;
long symcount;
unsigned int size;
{
bfd_byte *from, *fromend, *to;
asymbol *store;
store = bfd_make_empty_symbol (abfd);
if (store == NULL)
bfd_fatal (bfd_get_filename (abfd));
from = (bfd_byte *) minisyms;
fromend = from + symcount * size;
to = (bfd_byte *) minisyms;
for (; from < fromend; from += size)
{
int keep = 0;
asymbol *sym;
sym = bfd_minisymbol_to_symbol (abfd, false, (const PTR) from, store);
if (sym == NULL)
bfd_fatal (bfd_get_filename (abfd));
/* Check for external and defined only symbols. */
keep = (((sym->flags & BSF_GLOBAL) != 0
|| (sym->flags & BSF_WEAK) != 0
|| bfd_is_com_section (sym->section))
&& ! bfd_is_und_section (sym->section));
keep = keep && ! match_exclude (sym->name);
if (keep)
{
memcpy (to, from, size);
to += size;
}
}
return (to - (bfd_byte *) minisyms) / size;
}
/* Export all symbols in ABFD, except for ones we were told not to
export. */
static void
scan_all_symbols (abfd)
bfd *abfd;
{
long symcount;
PTR minisyms;
unsigned int size;
/* Ignore bfds with an import descriptor table. We assume that any
such BFD contains symbols which are exported from another DLL,
and we don't want to reexport them from here. */
if (bfd_get_section_by_name (abfd, ".idata$4"))
return;
if (! (bfd_get_file_flags (abfd) & HAS_SYMS))
{
/* xgettext:c-format */
warn (_("%s: no symbols\n"), bfd_get_filename (abfd));
return;
}
symcount = bfd_read_minisymbols (abfd, false, &minisyms, &size);
if (symcount < 0)
bfd_fatal (bfd_get_filename (abfd));
if (symcount == 0)
{
/* xgettext:c-format */
warn (_("%s: no symbols\n"), bfd_get_filename (abfd));
return;
}
/* Discard the symbols we don't want to export. It's OK to do this
in place; we'll free the storage anyway. */
symcount = filter_symbols (abfd, minisyms, symcount, size);
scan_filtered_symbols (abfd, minisyms, symcount, size);
free (minisyms);
}
/* Look at the object file to decide which symbols to export. */
static void
scan_open_obj_file (abfd)
bfd *abfd;
{
if (export_all_symbols)
scan_all_symbols (abfd);
else
scan_drectve_symbols (abfd);
/* FIXME: we ought to read in and block out the base relocations */
/* xgettext:c-format */
inform (_("%s: Done reading %s\n"), bfd_get_filename (abfd));
}
static void
scan_obj_file (filename)
const char *filename;
{
bfd * f = bfd_openr (filename, 0);
if (!f)
/* xgettext:c-format */
fatal (_("Unable to open object file: %s"), filename);
/* xgettext:c-format */
inform (_("Scanning object file %s"), filename);
if (bfd_check_format (f, bfd_archive))
{
bfd *arfile = bfd_openr_next_archived_file (f, 0);
while (arfile)
{
if (bfd_check_format (arfile, bfd_object))
scan_open_obj_file (arfile);
bfd_close (arfile);
arfile = bfd_openr_next_archived_file (f, arfile);
}
}
else if (bfd_check_format (f, bfd_object))
{
scan_open_obj_file (f);
}
bfd_close (f);
}
/**********************************************************************/
static void
dump_def_info (f)
FILE *f;
{
int i;
export_type *exp;
fprintf (f, "%s ", ASM_C);
for (i = 0; oav[i]; i++)
fprintf (f, "%s ", oav[i]);
fprintf (f, "\n");
for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
{
fprintf (f, "%s %d = %s %s @ %d %s%s%s\n",
ASM_C,
i,
exp->name,
exp->internal_name,
exp->ordinal,
exp->noname ? "NONAME " : "",
exp->constant ? "CONSTANT" : "",
exp->data ? "DATA" : "");
}
}
/* Generate the .exp file */
static int
sfunc (a, b)
const void *a;
const void *b;
{
return *(const long *) a - *(const long *) b;
}
static void
flush_page (f, need, page_addr, on_page)
FILE *f;
long *need;
int page_addr;
int on_page;
{
int i;
/* Flush this page */
fprintf (f, "\t%s\t0x%08x\t%s Starting RVA for chunk\n",
ASM_LONG,
page_addr,
ASM_C);
fprintf (f, "\t%s\t0x%x\t%s Size of block\n",
ASM_LONG,
(on_page * 2) + (on_page & 1) * 2 + 8,
ASM_C);
for (i = 0; i < on_page; i++)
{
fprintf (f, "\t%s\t0x%lx\n", ASM_SHORT, (need[i] - page_addr) | 0x3000);
}
/* And padding */
if (on_page & 1)
fprintf (f, "\t%s\t0x%x\n", ASM_SHORT, 0 | 0x0000);
}
static void
gen_def_file ()
{
int i;
export_type *exp;
inform (_("Adding exports to output file"));
fprintf (output_def, ";");
for (i = 0; oav[i]; i++)
fprintf (output_def, " %s", oav[i]);
fprintf (output_def, "\nEXPORTS\n");
for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
{
char *quote = strchr (exp->name, '.') ? "\"" : "";
char *res = cplus_demangle (exp->internal_name, DMGL_ANSI | DMGL_PARAMS);
fprintf (output_def, "\t%s%s%s @ %d%s%s ; %s\n",
quote,
exp->name,
quote,
exp->ordinal,
exp->noname ? " NONAME" : "",
exp->data ? " DATA" : "",
res ? res : "");
if (res)
free (res);
}
inform (_("Added exports to output file"));
}
/* generate_idata_ofile generates the portable assembly source code
for the idata sections. It appends the source code to the end of
the file. */
static void
generate_idata_ofile (filvar)
FILE *filvar;
{
iheadtype *headptr;
ifunctype *funcptr;
int headindex;
int funcindex;
int nheads;
if (import_list == NULL)
return;
fprintf (filvar, "%s Import data sections\n", ASM_C);
fprintf (filvar, "\n\t.section\t.idata$2\n");
fprintf (filvar, "\t%s\tdoi_idata\n", ASM_GLOBAL);
fprintf (filvar, "doi_idata:\n");
nheads = 0;
for (headptr = import_list; headptr != NULL; headptr = headptr->next)
{
fprintf (filvar, "\t%slistone%d%s\t%s %s\n",
ASM_RVA_BEFORE, nheads, ASM_RVA_AFTER,
ASM_C, headptr->dllname);
fprintf (filvar, "\t%s\t0\n", ASM_LONG);
fprintf (filvar, "\t%s\t0\n", ASM_LONG);
fprintf (filvar, "\t%sdllname%d%s\n",
ASM_RVA_BEFORE, nheads, ASM_RVA_AFTER);
fprintf (filvar, "\t%slisttwo%d%s\n\n",
ASM_RVA_BEFORE, nheads, ASM_RVA_AFTER);
nheads++;
}
fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* NULL record at */
fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* end of idata$2 */
fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* section */
fprintf (filvar, "\t%s\t0\n", ASM_LONG);
fprintf (filvar, "\t%s\t0\n", ASM_LONG);
fprintf (filvar, "\n\t.section\t.idata$4\n");
headindex = 0;
for (headptr = import_list; headptr != NULL; headptr = headptr->next)
{
fprintf (filvar, "listone%d:\n", headindex);
for ( funcindex = 0; funcindex < headptr->nfuncs; funcindex++ )
fprintf (filvar, "\t%sfuncptr%d_%d%s\n",
ASM_RVA_BEFORE, headindex, funcindex, ASM_RVA_AFTER);
fprintf (filvar,"\t%s\t0\n", ASM_LONG); /* NULL terminating list */
headindex++;
}
fprintf (filvar, "\n\t.section\t.idata$5\n");
headindex = 0;
for (headptr = import_list; headptr != NULL; headptr = headptr->next)
{
fprintf (filvar, "listtwo%d:\n", headindex);
for ( funcindex = 0; funcindex < headptr->nfuncs; funcindex++ )
fprintf (filvar, "\t%sfuncptr%d_%d%s\n",
ASM_RVA_BEFORE, headindex, funcindex, ASM_RVA_AFTER);
fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* NULL terminating list */
headindex++;
}
fprintf (filvar, "\n\t.section\t.idata$6\n");
headindex = 0;
for (headptr = import_list; headptr != NULL; headptr = headptr->next)
{
funcindex = 0;
for (funcptr = headptr->funchead; funcptr != NULL;
funcptr = funcptr->next)
{
fprintf (filvar,"funcptr%d_%d:\n", headindex, funcindex);
fprintf (filvar,"\t%s\t%d\n", ASM_SHORT,
((funcptr->ord) & 0xFFFF));
fprintf (filvar,"\t%s\t\"%s\"\n", ASM_TEXT, funcptr->name);
fprintf (filvar,"\t%s\t0\n", ASM_BYTE);
funcindex++;
}
headindex++;
}
fprintf (filvar, "\n\t.section\t.idata$7\n");
headindex = 0;
for (headptr = import_list; headptr != NULL; headptr = headptr->next)
{
fprintf (filvar,"dllname%d:\n", headindex);
fprintf (filvar,"\t%s\t\"%s\"\n", ASM_TEXT, headptr->dllname);
fprintf (filvar,"\t%s\t0\n", ASM_BYTE);
headindex++;
}
}
static void
gen_exp_file ()
{
FILE *f;
int i;
export_type *exp;
dlist_type *dl;
/* xgettext:c-format */
inform (_("Generating export file: %s\n"), exp_name);
f = fopen (TMP_ASM, FOPEN_WT);
if (!f)
/* xgettext:c-format */
fatal (_("Unable to open temporary assembler file: %s"), TMP_ASM);
/* xgettext:c-format */
inform (_("Opened temporary file: %s"), TMP_ASM);
dump_def_info (f);
if (d_exports)
{
fprintf (f, "\t.section .edata\n\n");
fprintf (f, "\t%s 0 %s Allways 0\n", ASM_LONG, ASM_C);
fprintf (f, "\t%s 0x%lx %s Time and date\n", ASM_LONG, (long) time(0),
ASM_C);
fprintf (f, "\t%s 0 %s Major and Minor version\n", ASM_LONG, ASM_C);
fprintf (f, "\t%sname%s %s Ptr to name of dll\n", ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
fprintf (f, "\t%s %d %s Starting ordinal of exports\n", ASM_LONG, d_low_ord, ASM_C);
fprintf (f, "\t%s %d %s Number of functions\n", ASM_LONG, d_high_ord - d_low_ord + 1, ASM_C);
fprintf(f,"\t%s named funcs %d, low ord %d, high ord %d\n",
ASM_C,
d_named_nfuncs, d_low_ord, d_high_ord);
fprintf (f, "\t%s %d %s Number of names\n", ASM_LONG,
show_allnames ? d_high_ord - d_low_ord + 1 : d_named_nfuncs, ASM_C);
fprintf (f, "\t%safuncs%s %s Address of functions\n", ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
fprintf (f, "\t%sanames%s %s Address of Name Pointer Table\n",
ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
fprintf (f, "\t%sanords%s %s Address of ordinals\n", ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
fprintf (f, "name: %s \"%s\"\n", ASM_TEXT, dll_name);
fprintf(f,"%s Export address Table\n", ASM_C);
fprintf(f,"\t%s\n", ASM_ALIGN_LONG);
fprintf (f, "afuncs:\n");
i = d_low_ord;
for (exp = d_exports; exp; exp = exp->next)
{
if (exp->ordinal != i)
{
#if 0
fprintf (f, "\t%s\t%d\t%s %d..%d missing\n",
ASM_SPACE,
(exp->ordinal - i) * 4,
ASM_C,
i, exp->ordinal - 1);
i = exp->ordinal;
#endif
while (i < exp->ordinal)
{
fprintf(f,"\t%s\t0\n", ASM_LONG);
i++;
}
}
fprintf (f, "\t%s%s%s%s\t%s %d\n", ASM_RVA_BEFORE,
ASM_PREFIX,
exp->internal_name, ASM_RVA_AFTER, ASM_C, exp->ordinal);
i++;
}
fprintf (f,"%s Export Name Pointer Table\n", ASM_C);
fprintf (f, "anames:\n");
for (i = 0; (exp = d_exports_lexically[i]); i++)
{
if (!exp->noname || show_allnames)
fprintf (f, "\t%sn%d%s\n",
ASM_RVA_BEFORE, exp->ordinal, ASM_RVA_AFTER);
}
fprintf (f,"%s Export Oridinal Table\n", ASM_C);
fprintf (f, "anords:\n");
for (i = 0; (exp = d_exports_lexically[i]); i++)
{
if (!exp->noname || show_allnames)
fprintf (f, "\t%s %d\n", ASM_SHORT, exp->ordinal - d_low_ord);
}
fprintf(f,"%s Export Name Table\n", ASM_C);
for (i = 0; (exp = d_exports_lexically[i]); i++)
if (!exp->noname || show_allnames)
fprintf (f, "n%d: %s \"%s\"\n",
exp->ordinal, ASM_TEXT, exp->name);
if (a_list)
{
fprintf (f, "\t.section .drectve\n");
for (dl = a_list; dl; dl = dl->next)
{
fprintf (f, "\t%s\t\"%s\"\n", ASM_TEXT, dl->text);
}
}
if (d_list)
{
fprintf (f, "\t.section .rdata\n");
for (dl = d_list; dl; dl = dl->next)
{
char *p;
int l;
/* We dont output as ascii 'cause there can
be quote characters in the string */
l = 0;
for (p = dl->text; *p; p++)
{
if (l == 0)
fprintf (f, "\t%s\t", ASM_BYTE);
else
fprintf (f, ",");
fprintf (f, "%d", *p);
if (p[1] == 0)
{
fprintf (f, ",0\n");
break;
}
if (++l == 10)
{
fprintf (f, "\n");
l = 0;
}
}
}
}
}
/* Add to the output file a way of getting to the exported names
without using the import library. */
if (add_indirect)
{
fprintf (f, "\t.section\t.rdata\n");
for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
if (!exp->noname || show_allnames)
{
/* We use a single underscore for MS compatibility, and a
double underscore for backward compatibility with old
cygwin releases. */
fprintf (f, "\t%s\t__imp_%s\n", ASM_GLOBAL, exp->name);
fprintf (f, "\t%s\t_imp__%s\n", ASM_GLOBAL, exp->name);
fprintf (f, "__imp_%s:\n", exp->name);
fprintf (f, "_imp__%s:\n", exp->name);
fprintf (f, "\t%s\t%s\n", ASM_LONG, exp->name);
}
}
/* Dump the reloc section if a base file is provided */
if (base_file)
{
int addr;
long need[PAGE_SIZE];
long page_addr;
int numbytes;
int num_entries;
long *copy;
int j;
int on_page;
fprintf (f, "\t.section\t.init\n");
fprintf (f, "lab:\n");
fseek (base_file, 0, SEEK_END);
numbytes = ftell (base_file);
fseek (base_file, 0, SEEK_SET);
copy = xmalloc (numbytes);
fread (copy, 1, numbytes, base_file);
num_entries = numbytes / sizeof (long);
fprintf (f, "\t.section\t.reloc\n");
if (num_entries)
{
int src;
int dst = 0;
int last = -1;
qsort (copy, num_entries, sizeof (long), sfunc);
/* Delete duplcates */
for (src = 0; src < num_entries; src++)
{
if (last != copy[src])
last = copy[dst++] = copy[src];
}
num_entries = dst;
addr = copy[0];
page_addr = addr & PAGE_MASK; /* work out the page addr */
on_page = 0;
for (j = 0; j < num_entries; j++)
{
addr = copy[j];
if ((addr & PAGE_MASK) != page_addr)
{
flush_page (f, need, page_addr, on_page);
on_page = 0;
page_addr = addr & PAGE_MASK;
}
need[on_page++] = addr;
}
flush_page (f, need, page_addr, on_page);
/* fprintf (f, "\t%s\t0,0\t%s End\n", ASM_LONG, ASM_C);*/
}
}
generate_idata_ofile (f);
fclose (f);
/* assemble the file */
sprintf (outfile, "%s -o %s %s", as_flags, exp_name, TMP_ASM);
#ifdef DLLTOOL_ARM
if (interwork)
strcat (outfile, " -mthumb-interwork");
#endif
run (as_name, outfile);
if (dontdeltemps == 0)
unlink (TMP_ASM);
inform (_("Generated exports file"));
}
static const char *
xlate (name)
const char *name;
{
if (add_underscore)
{
char *copy = xmalloc (strlen (name) + 2);
copy[0] = '_';
strcpy (copy + 1, name);
name = copy;
}
if (killat)
{
char *p;
p = strchr (name, '@');
if (p)
*p = 0;
}
return name;
}
/**********************************************************************/
#if 0
static void
dump_iat (f, exp)
FILE *f;
export_type *exp;
{
if (exp->noname && !show_allnames )
{
fprintf (f, "\t%s\t0x%08x\n",
ASM_LONG,
exp->ordinal | 0x80000000); /* hint or orindal ?? */
}
else
{
fprintf (f, "\t%sID%d%s\n", ASM_RVA_BEFORE,
exp->ordinal,
ASM_RVA_AFTER);
}
}
#endif
typedef struct
{
int id;
const char *name;
int flags;
int align;
asection *sec;
asymbol *sym;
asymbol **sympp;
int size;
unsigned char *data;
} sinfo;
#ifndef DLLTOOL_PPC
#define TEXT 0
#define DATA 1
#define BSS 2
#define IDATA7 3
#define IDATA5 4
#define IDATA4 5
#define IDATA6 6
#define NSECS 7
static sinfo secdata[NSECS] =
{
{ TEXT, ".text", SEC_CODE | SEC_HAS_CONTENTS, 2},
{ DATA, ".data", SEC_DATA, 2},
{ BSS, ".bss", 0, 2},
{ IDATA7, ".idata$7", SEC_HAS_CONTENTS, 2},
{ IDATA5, ".idata$5", SEC_HAS_CONTENTS, 2},
{ IDATA4, ".idata$4", SEC_HAS_CONTENTS, 2},
{ IDATA6, ".idata$6", SEC_HAS_CONTENTS, 1}
};
#else
/* Sections numbered to make the order the same as other PowerPC NT */
/* compilers. This also keeps funny alignment thingies from happening. */
#define TEXT 0
#define PDATA 1
#define RDATA 2
#define IDATA5 3
#define IDATA4 4
#define IDATA6 5
#define IDATA7 6
#define DATA 7
#define BSS 8
#define NSECS 9
static sinfo secdata[NSECS] =
{
{ TEXT, ".text", SEC_CODE | SEC_HAS_CONTENTS, 3},
{ PDATA, ".pdata", SEC_HAS_CONTENTS, 2},
{ RDATA, ".reldata", SEC_HAS_CONTENTS, 2},
{ IDATA5, ".idata$5", SEC_HAS_CONTENTS, 2},
{ IDATA4, ".idata$4", SEC_HAS_CONTENTS, 2},
{ IDATA6, ".idata$6", SEC_HAS_CONTENTS, 1},
{ IDATA7, ".idata$7", SEC_HAS_CONTENTS, 2},
{ DATA, ".data", SEC_DATA, 2},
{ BSS, ".bss", 0, 2}
};
#endif
/*
This is what we're trying to make. We generate the imp symbols with
both single and double underscores, for compatibility.
.text
.global _GetFileVersionInfoSizeW@8
.global __imp_GetFileVersionInfoSizeW@8
_GetFileVersionInfoSizeW@8:
jmp * __imp_GetFileVersionInfoSizeW@8
.section .idata$7 # To force loading of head
.long __version_a_head
# Import Address Table
.section .idata$5
__imp_GetFileVersionInfoSizeW@8:
.rva ID2
# Import Lookup Table
.section .idata$4
.rva ID2
# Hint/Name table
.section .idata$6
ID2: .short 2
.asciz "GetFileVersionInfoSizeW"
For the PowerPC, here's the variation on the above scheme:
# Rather than a simple "jmp *", the code to get to the dll function
# looks like:
.text
lwz r11,[tocv]__imp_function_name(r2)
# RELOC: 00000000 TOCREL16,TOCDEFN __imp_function_name
lwz r12,0(r11)
stw r2,4(r1)
mtctr r12
lwz r2,4(r11)
bctr
*/
static char *
make_label (prefix, name)
const char *prefix;
const char *name;
{
int len = strlen (ASM_PREFIX) + strlen (prefix) + strlen (name);
char *copy = xmalloc (len +1 );
strcpy (copy, ASM_PREFIX);
strcat (copy, prefix);
strcat (copy, name);
return copy;
}
static bfd *
make_one_lib_file (exp, i)
export_type *exp;
int i;
{
#if 0
{
FILE *f;
char *prefix="d";
sprintf (outfile, "%ss%d.s", prefix, i);
f = fopen (outfile, FOPEN_WT);
fprintf (f, "\t.text\n");
fprintf (f, "\t%s\t%s%s\n", ASM_GLOBAL, ASM_PREFIX, exp->name);
fprintf (f, "\t%s\t__imp_%s\n", ASM_GLOBAL, exp->name);
fprintf (f, "\t%s\t_imp__%s\n", ASM_GLOBAL, exp->name);
fprintf (f, "%s%s:\n\t%s\t__imp_%s\n", ASM_PREFIX,
exp->name, ASM_JUMP, exp->name);
fprintf (f, "\t.section\t.idata$7\t%s To force loading of head\n", ASM_C);
fprintf (f, "\t%s\t%s\n", ASM_LONG, head_label);
fprintf (f,"%s Import Address Table\n", ASM_C);
fprintf (f, "\t.section .idata$5\n");
fprintf (f, "__imp_%s:\n", exp->name);
fprintf (f, "_imp__%s:\n", exp->name);
dump_iat (f, exp);
fprintf (f, "\n%s Import Lookup Table\n", ASM_C);
fprintf (f, "\t.section .idata$4\n");
dump_iat (f, exp);
if(!exp->noname || show_allnames)
{
fprintf (f, "%s Hint/Name table\n", ASM_C);
fprintf (f, "\t.section .idata$6\n");
fprintf (f, "ID%d:\t%s\t%d\n", exp->ordinal, ASM_SHORT, exp->hint);
fprintf (f, "\t%s\t\"%s\"\n", ASM_TEXT, xlate (exp->name));
}
fclose (f);
sprintf (outfile, "%s -o %ss%d.o %ss%d.s",
as_flags, prefix, i, prefix, i);
#ifdef DLLTOOL_ARM
if (interwork)
strcat (outfile, " -mthumb-interwork");
#endif
run (as_name, outfile);
}
#else /* if 0 */
{
bfd * abfd;
asymbol * exp_label;
asymbol * iname;
asymbol * iname2;
asymbol * iname_lab;
asymbol ** iname_lab_pp;
asymbol ** iname_pp;
#ifdef DLLTOOL_PPC
asymbol ** fn_pp;
asymbol ** toc_pp;
#define EXTRA 2
#endif
#ifndef EXTRA
#define EXTRA 0
#endif
asymbol * ptrs[NSECS + 4 + EXTRA + 1];
char * outname = xmalloc (10);
int oidx = 0;
sprintf (outname, "%s%d.o", TMP_STUB, i);
abfd = bfd_openw (outname, HOW_BFD_TARGET);
if (!abfd)
/* xgettext:c-format */
fatal (_("bfd_open failed open stub file: %s"), outname);
/* xgettext:c-format */
inform (_("Creating stub file: %s"), outname);
bfd_set_format (abfd, bfd_object);
bfd_set_arch_mach (abfd, HOW_BFD_ARCH, 0);
#ifdef DLLTOOL_ARM
if (interwork)
bfd_set_private_flags (abfd, F_INTERWORK);
#endif
/* First make symbols for the sections */
for (i = 0; i < NSECS; i++)
{
sinfo *si = secdata + i;
if (si->id != i)
abort();
si->sec = bfd_make_section_old_way (abfd, si->name);
bfd_set_section_flags (abfd,
si->sec,
si->flags);
bfd_set_section_alignment(abfd, si->sec, si->align);
si->sec->output_section = si->sec;
si->sym = bfd_make_empty_symbol(abfd);
si->sym->name = si->sec->name;
si->sym->section = si->sec;
si->sym->flags = BSF_LOCAL;
si->sym->value = 0;
ptrs[oidx] = si->sym;
si->sympp = ptrs + oidx;
si->size = 0;
si->data = NULL;
oidx++;
}
if (! exp->data)
{
exp_label = bfd_make_empty_symbol (abfd);
exp_label->name = make_label ("", exp->name);
/* On PowerPC, the function name points to a descriptor in
the rdata section, the first element of which is a
pointer to the code (..function_name), and the second
points to the .toc */
#ifdef DLLTOOL_PPC
if (machine == MPPC)
exp_label->section = secdata[RDATA].sec;
else
#endif
exp_label->section = secdata[TEXT].sec;
exp_label->flags = BSF_GLOBAL;
exp_label->value = 0;
#ifdef DLLTOOL_ARM
if (machine == MTHUMB)
bfd_coff_set_symbol_class (abfd, exp_label, C_THUMBEXT);
#endif
ptrs[oidx++] = exp_label;
}
/* Generate imp symbols with one underscore for Microsoft
compatibility, and with two underscores for backward
compatibility with old versions of cygwin. */
iname = bfd_make_empty_symbol(abfd);
iname->name = make_label ("__imp_", exp->name);
iname->section = secdata[IDATA5].sec;
iname->flags = BSF_GLOBAL;
iname->value = 0;
iname2 = bfd_make_empty_symbol(abfd);
iname2->name = make_label ("_imp__", exp->name);
iname2->section = secdata[IDATA5].sec;
iname2->flags = BSF_GLOBAL;
iname2->value = 0;
iname_lab = bfd_make_empty_symbol(abfd);
iname_lab->name = head_label;
iname_lab->section = (asection *)&bfd_und_section;
iname_lab->flags = 0;
iname_lab->value = 0;
iname_pp = ptrs + oidx;
ptrs[oidx++] = iname;
ptrs[oidx++] = iname2;
iname_lab_pp = ptrs + oidx;
ptrs[oidx++] = iname_lab;
#ifdef DLLTOOL_PPC
/* The symbol refering to the code (.text) */
{
asymbol *function_name;
function_name = bfd_make_empty_symbol(abfd);
function_name->name = make_label ("..", exp->name);
function_name->section = secdata[TEXT].sec;
function_name->flags = BSF_GLOBAL;
function_name->value = 0;
fn_pp = ptrs + oidx;
ptrs[oidx++] = function_name;
}
/* The .toc symbol */
{
asymbol *toc_symbol; /* The .toc symbol */
toc_symbol = bfd_make_empty_symbol (abfd);
toc_symbol->name = make_label (".", "toc");
toc_symbol->section = (asection *)&bfd_und_section;
toc_symbol->flags = BSF_GLOBAL;
toc_symbol->value = 0;
toc_pp = ptrs + oidx;
ptrs[oidx++] = toc_symbol;
}
#endif
ptrs[oidx] = 0;
for (i = 0; i < NSECS; i++)
{
sinfo *si = secdata + i;
asection *sec = si->sec;
arelent *rel;
arelent **rpp;
switch (i)
{
case TEXT:
if (! exp->data)
{
si->size = HOW_JTAB_SIZE;
si->data = xmalloc (HOW_JTAB_SIZE);
memcpy (si->data, HOW_JTAB, HOW_JTAB_SIZE);
/* add the reloc into idata$5 */
rel = xmalloc (sizeof (arelent));
rpp = xmalloc (sizeof (arelent *) * 2);
rpp[0] = rel;
rpp[1] = 0;
rel->address = HOW_JTAB_ROFF;
rel->addend = 0;
if (machine == MPPC)
{
rel->howto = bfd_reloc_type_lookup (abfd,
BFD_RELOC_16_GOTOFF);
rel->sym_ptr_ptr = iname_pp;
}
else
{
rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
rel->sym_ptr_ptr = secdata[IDATA5].sympp;
}
sec->orelocation = rpp;
sec->reloc_count = 1;
}
break;
case IDATA4:
case IDATA5:
/* An idata$4 or idata$5 is one word long, and has an
rva to idata$6 */
si->data = xmalloc (4);
si->size = 4;
if (exp->noname)
{
si->data[0] = exp->ordinal ;
si->data[1] = exp->ordinal >> 8;
si->data[2] = exp->ordinal >> 16;
si->data[3] = 0x80;
}
else
{
sec->reloc_count = 1;
memset (si->data, 0, si->size);
rel = xmalloc (sizeof (arelent));
rpp = xmalloc (sizeof (arelent *) * 2);
rpp[0] = rel;
rpp[1] = 0;
rel->address = 0;
rel->addend = 0;
rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_RVA);
rel->sym_ptr_ptr = secdata[IDATA6].sympp;
sec->orelocation = rpp;
}
break;
case IDATA6:
if (!exp->noname)
{
/* This used to add 1 to exp->hint. I don't know
why it did that, and it does not match what I see
in programs compiled with the MS tools. */
int idx = exp->hint;
si->size = strlen (xlate (exp->name)) + 3;
si->data = xmalloc (si->size);
si->data[0] = idx & 0xff;
si->data[1] = idx >> 8;
strcpy (si->data + 2, xlate (exp->name));
}
break;
case IDATA7:
si->size = 4;
si->data =xmalloc(4);
memset (si->data, 0, si->size);
rel = xmalloc (sizeof (arelent));
rpp = xmalloc (sizeof (arelent *) * 2);
rpp[0] = rel;
rel->address = 0;
rel->addend = 0;
rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_RVA);
rel->sym_ptr_ptr = iname_lab_pp;
sec->orelocation = rpp;
sec->reloc_count = 1;
break;
#ifdef DLLTOOL_PPC
case PDATA:
{
/* The .pdata section is 5 words long. */
/* Think of it as: */
/* struct */
/* { */
/* bfd_vma BeginAddress, [0x00] */
/* EndAddress, [0x04] */
/* ExceptionHandler, [0x08] */
/* HandlerData, [0x0c] */
/* PrologEndAddress; [0x10] */
/* }; */
/* So this pdata section setups up this as a glue linkage to
a dll routine. There are a number of house keeping things
we need to do:
1. In the name of glue trickery, the ADDR32 relocs for 0,
4, and 0x10 are set to point to the same place:
"..function_name".
2. There is one more reloc needed in the pdata section.
The actual glue instruction to restore the toc on
return is saved as the offset in an IMGLUE reloc.
So we need a total of four relocs for this section.
3. Lastly, the HandlerData field is set to 0x03, to indicate
that this is a glue routine.
*/
arelent *imglue, *ba_rel, *ea_rel, *pea_rel;
/* alignment must be set to 2**2 or you get extra stuff */
bfd_set_section_alignment(abfd, sec, 2);
si->size = 4 * 5;
si->data =xmalloc(4 * 5);
memset (si->data, 0, si->size);
rpp = xmalloc (sizeof (arelent *) * 5);
rpp[0] = imglue = xmalloc (sizeof (arelent));
rpp[1] = ba_rel = xmalloc (sizeof (arelent));
rpp[2] = ea_rel = xmalloc (sizeof (arelent));
rpp[3] = pea_rel = xmalloc (sizeof (arelent));
rpp[4] = 0;
/* stick the toc reload instruction in the glue reloc */
bfd_put_32(abfd, ppc_glue_insn, (char *) &imglue->address);
imglue->addend = 0;
imglue->howto = bfd_reloc_type_lookup (abfd,
BFD_RELOC_32_GOTOFF);
imglue->sym_ptr_ptr = fn_pp;
ba_rel->address = 0;
ba_rel->addend = 0;
ba_rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
ba_rel->sym_ptr_ptr = fn_pp;
bfd_put_32(abfd, 0x18, si->data + 0x04);
ea_rel->address = 4;
ea_rel->addend = 0;
ea_rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
ea_rel->sym_ptr_ptr = fn_pp;
/* mark it as glue */
bfd_put_32(abfd, 0x03, si->data + 0x0c);
/* mark the prolog end address */
bfd_put_32(abfd, 0x0D, si->data + 0x10);
pea_rel->address = 0x10;
pea_rel->addend = 0;
pea_rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
pea_rel->sym_ptr_ptr = fn_pp;
sec->orelocation = rpp;
sec->reloc_count = 4;
break;
}
case RDATA:
/* Each external function in a PowerPC PE file has a two word
descriptor consisting of:
1. The address of the code.
2. The address of the appropriate .toc
We use relocs to build this.
*/
si->size = 8;
si->data = xmalloc (8);
memset (si->data, 0, si->size);
rpp = xmalloc (sizeof (arelent *) * 3);
rpp[0] = rel = xmalloc (sizeof (arelent));
rpp[1] = xmalloc (sizeof (arelent));
rpp[2] = 0;
rel->address = 0;
rel->addend = 0;
rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
rel->sym_ptr_ptr = fn_pp;
rel = rpp[1];
rel->address = 4;
rel->addend = 0;
rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
rel->sym_ptr_ptr = toc_pp;
sec->orelocation = rpp;
sec->reloc_count = 2;
break;
#endif /* DLLTOOL_PPC */
}
}
{
bfd_vma vma = 0;
/* Size up all the sections */
for (i = 0; i < NSECS; i++)
{
sinfo *si = secdata + i;
bfd_set_section_size (abfd, si->sec, si->size);
bfd_set_section_vma (abfd, si->sec, vma);
/* vma += si->size;*/
}
}
/* Write them out */
for (i = 0; i < NSECS; i++)
{
sinfo *si = secdata + i;
if (i == IDATA5 && no_idata5)
continue;
if (i == IDATA4 && no_idata4)
continue;
bfd_set_section_contents (abfd, si->sec,
si->data, 0,
si->size);
}
bfd_set_symtab (abfd, ptrs, oidx);
bfd_close (abfd);
abfd = bfd_openr (outname, HOW_BFD_TARGET);
return abfd;
}
#endif
}
static bfd *
make_head ()
{
FILE * f = fopen (TMP_HEAD_S, FOPEN_WT);
fprintf (f, "%s IMAGE_IMPORT_DESCRIPTOR\n", ASM_C);
fprintf (f, "\t.section .idata$2\n");
fprintf(f,"\t%s\t%s\n", ASM_GLOBAL,head_label);
fprintf (f, "%s:\n", head_label);
fprintf (f, "\t%shname%s\t%sPtr to image import by name list\n",
ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
fprintf (f, "\t%sthis should be the timestamp, but NT sometimes\n", ASM_C);
fprintf (f, "\t%sdoesn't load DLLs when this is set.\n", ASM_C);
fprintf (f, "\t%s\t0\t%s loaded time\n", ASM_LONG, ASM_C);
fprintf (f, "\t%s\t0\t%s Forwarder chain\n", ASM_LONG, ASM_C);
fprintf (f, "\t%s__%s_iname%s\t%s imported dll's name\n",
ASM_RVA_BEFORE,
imp_name_lab,
ASM_RVA_AFTER,
ASM_C);
fprintf (f, "\t%sfthunk%s\t%s pointer to firstthunk\n",
ASM_RVA_BEFORE,
ASM_RVA_AFTER, ASM_C);
fprintf (f, "%sStuff for compatibility\n", ASM_C);
if (!no_idata5)
{
fprintf (f, "\t.section\t.idata$5\n");
fprintf (f, "\t%s\t0\n", ASM_LONG);
fprintf (f, "fthunk:\n");
}
if (!no_idata4)
{
fprintf (f, "\t.section\t.idata$4\n");
fprintf (f, "\t%s\t0\n", ASM_LONG);
fprintf (f, "\t.section .idata$4\n");
fprintf (f, "hname:\n");
}
fclose (f);
sprintf (outfile, "%s -o %s %s", as_flags, TMP_HEAD_O, TMP_HEAD_S);
#ifdef DLLTOOL_ARM
if (interwork)
strcat (outfile, " -mthumb-interwork");
#endif
run (as_name, outfile);
return bfd_openr (TMP_HEAD_O, HOW_BFD_TARGET);
}
static bfd *
make_tail ()
{
FILE * f = fopen (TMP_TAIL_S, FOPEN_WT);
if (!no_idata4)
{
fprintf (f, "\t.section .idata$4\n");
fprintf (f, "\t%s\t0\n", ASM_LONG);
}
if (!no_idata5)
{
fprintf (f, "\t.section .idata$5\n");
fprintf (f, "\t%s\t0\n", ASM_LONG);
}
#ifdef DLLTOOL_PPC
/* Normally, we need to see a null descriptor built in idata$3 to
act as the terminator for the list. The ideal way, I suppose,
would be to mark this section as a comdat type 2 section, so
only one would appear in the final .exe (if our linker supported
comdat, that is) or cause it to be inserted by something else (say
crt0)
*/
fprintf (f, "\t.section .idata$3\n");
fprintf (f, "\t%s\t0\n", ASM_LONG);
fprintf (f, "\t%s\t0\n", ASM_LONG);
fprintf (f, "\t%s\t0\n", ASM_LONG);
fprintf (f, "\t%s\t0\n", ASM_LONG);
fprintf (f, "\t%s\t0\n", ASM_LONG);
#endif
#ifdef DLLTOOL_PPC
/* Other PowerPC NT compilers use idata$6 for the dllname, so I
do too. Original, huh? */
fprintf (f, "\t.section .idata$6\n");
#else
fprintf (f, "\t.section .idata$7\n");
#endif
fprintf (f, "\t%s\t__%s_iname\n", ASM_GLOBAL, imp_name_lab);
fprintf (f, "__%s_iname:\t%s\t\"%s\"\n",
imp_name_lab, ASM_TEXT, dll_name);
fclose (f);
sprintf (outfile, "%s -o %s %s", as_flags, TMP_TAIL_O, TMP_TAIL_S);
#ifdef DLLTOOL_ARM
if (interwork)
strcat (outfile, " -mthumb-interwork");
#endif
run (as_name, outfile);
return bfd_openr (TMP_TAIL_O, HOW_BFD_TARGET);
}
static void
gen_lib_file ()
{
int i;
export_type *exp;
bfd *ar_head;
bfd *ar_tail;
bfd *outarch;
bfd * head = 0;
unlink (imp_name);
outarch = bfd_openw (imp_name, HOW_BFD_TARGET);
if (!outarch)
/* xgettext:c-format */
fatal (_("Can't open .lib file: %s"), imp_name);
/* xgettext:c-format */
inform (_("Creating library file: %s\n"), imp_name);
bfd_set_format (outarch, bfd_archive);
outarch->has_armap = 1;
/* Work out a reasonable size of things to put onto one line. */
ar_head = make_head ();
ar_tail = make_tail();
if (ar_head == NULL || ar_tail == NULL)
return;
for (i = 0; (exp = d_exports_lexically[i]); i++)
{
bfd *n = make_one_lib_file (exp, i);
n->next = head;
head = n;
}
/* Now stick them all into the archive */
ar_head->next = head;
ar_tail->next = ar_head;
head = ar_tail;
if (! bfd_set_archive_head (outarch, head))
bfd_fatal ("bfd_set_archive_head");
if (! bfd_close (outarch))
bfd_fatal (imp_name);
while (head != NULL)
{
bfd *n = head->next;
bfd_close (head);
head = n;
}
/* Delete all the temp files */
if (dontdeltemps == 0)
{
unlink (TMP_HEAD_O);
unlink (TMP_HEAD_S);
unlink (TMP_TAIL_O);
unlink (TMP_TAIL_S);
}
if (dontdeltemps < 2)
{
for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
{
sprintf (outfile, "%s%d.o", TMP_STUB, i);
if (unlink (outfile) < 0)
/* xgettext:c-format */
warn (_("cannot delete %s: %s\n"), outfile, strerror (errno));
}
}
inform (_("Created lib file"));
}
/**********************************************************************/
/* Run through the information gathered from the .o files and the
.def file and work out the best stuff */
static int
pfunc (a, b)
const void *a;
const void *b;
{
export_type *ap = *(export_type **) a;
export_type *bp = *(export_type **) b;
if (ap->ordinal == bp->ordinal)
return 0;
/* unset ordinals go to the bottom */
if (ap->ordinal == -1)
return 1;
if (bp->ordinal == -1)
return -1;
return (ap->ordinal - bp->ordinal);
}
static int
nfunc (a, b)
const void *a;
const void *b;
{
export_type *ap = *(export_type **) a;
export_type *bp = *(export_type **) b;
return (strcmp (ap->name, bp->name));
}
static void
remove_null_names (ptr)
export_type **ptr;
{
int src;
int dst;
for (dst = src = 0; src < d_nfuncs; src++)
{
if (ptr[src])
{
ptr[dst] = ptr[src];
dst++;
}
}
d_nfuncs = dst;
}
static void
dtab (ptr)
export_type **ptr;
{
#ifdef SACDEBUG
int i;
for (i = 0; i < d_nfuncs; i++)
{
if (ptr[i])
{
printf ("%d %s @ %d %s%s%s\n",
i, ptr[i]->name, ptr[i]->ordinal,
ptr[i]->noname ? "NONAME " : "",
ptr[i]->constant ? "CONSTANT" : "",
ptr[i]->data ? "DATA" : "");
}
else
printf ("empty\n");
}
#endif
}
static void
process_duplicates (d_export_vec)
export_type **d_export_vec;
{
int more = 1;
int i;
while (more)
{
more = 0;
/* Remove duplicates */
qsort (d_export_vec, d_nfuncs, sizeof (export_type *), nfunc);
dtab (d_export_vec);
for (i = 0; i < d_nfuncs - 1; i++)
{
if (strcmp (d_export_vec[i]->name,
d_export_vec[i + 1]->name) == 0)
{
export_type *a = d_export_vec[i];
export_type *b = d_export_vec[i + 1];
more = 1;
/* xgettext:c-format */
inform (_("Warning, ignoring duplicate EXPORT %s %d,%d\n"),
a->name, a->ordinal, b->ordinal);
if (a->ordinal != -1
&& b->ordinal != -1)
/* xgettext:c-format */
fatal (_("Error, duplicate EXPORT with oridinals: %s"),
a->name);
/* Merge attributes */
b->ordinal = a->ordinal > 0 ? a->ordinal : b->ordinal;
b->constant |= a->constant;
b->noname |= a->noname;
b->data |= a->data;
d_export_vec[i] = 0;
}
dtab (d_export_vec);
remove_null_names (d_export_vec);
dtab (d_export_vec);
}
}
/* Count the names */
for (i = 0; i < d_nfuncs; i++)
{
if (!d_export_vec[i]->noname)
d_named_nfuncs++;
}
}
static void
fill_ordinals (d_export_vec)
export_type **d_export_vec;
{
int lowest = -1;
int i;
char *ptr;
int size = 65536;
qsort (d_export_vec, d_nfuncs, sizeof (export_type *), pfunc);
/* fill in the unset ordinals with ones from our range */
ptr = (char *) xmalloc (size);
memset (ptr, 0, size);
/* Mark in our large vector all the numbers that are taken */
for (i = 0; i < d_nfuncs; i++)
{
if (d_export_vec[i]->ordinal != -1)
{
ptr[d_export_vec[i]->ordinal] = 1;
if (lowest == -1 || d_export_vec[i]->ordinal < lowest)
{
lowest = d_export_vec[i]->ordinal;
}
}
}
/* Start at 1 for compatibility with MS toolchain. */
if (lowest == -1)
lowest = 1;
/* Now fill in ordinals where the user wants us to choose. */
for (i = 0; i < d_nfuncs; i++)
{
if (d_export_vec[i]->ordinal == -1)
{
register int j;
/* First try within or after any user supplied range. */
for (j = lowest; j < size; j++)
if (ptr[j] == 0)
{
ptr[j] = 1;
d_export_vec[i]->ordinal = j;
goto done;
}
/* Then try before the range. */
for (j = lowest; j >0; j--)
if (ptr[j] == 0)
{
ptr[j] = 1;
d_export_vec[i]->ordinal = j;
goto done;
}
done:;
}
}
free (ptr);
/* And resort */
qsort (d_export_vec, d_nfuncs, sizeof (export_type *), pfunc);
/* Work out the lowest and highest ordinal numbers. */
if (d_nfuncs)
{
if (d_export_vec[0])
d_low_ord = d_export_vec[0]->ordinal;
if (d_export_vec[d_nfuncs-1])
d_high_ord = d_export_vec[d_nfuncs-1]->ordinal;
}
}
static int
alphafunc (av,bv)
const void *av;
const void *bv;
{
const export_type **a = (const export_type **) av;
const export_type **b = (const export_type **) bv;
return strcmp ((*a)->name, (*b)->name);
}
static void
mangle_defs ()
{
/* First work out the minimum ordinal chosen */
export_type *exp;
int i;
int hint = 0;
export_type **d_export_vec
= (export_type **) xmalloc (sizeof (export_type *) * d_nfuncs);
inform (_("Processing definitions"));
for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
{
d_export_vec[i] = exp;
}
process_duplicates (d_export_vec);
fill_ordinals (d_export_vec);
/* Put back the list in the new order */
d_exports = 0;
for (i = d_nfuncs - 1; i >= 0; i--)
{
d_export_vec[i]->next = d_exports;
d_exports = d_export_vec[i];
}
/* Build list in alpha order */
d_exports_lexically = (export_type **)
xmalloc (sizeof (export_type *) * (d_nfuncs + 1));
for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
{
d_exports_lexically[i] = exp;
}
d_exports_lexically[i] = 0;
qsort (d_exports_lexically, i, sizeof (export_type *), alphafunc);
/* Fill exp entries with their hint values */
for (i = 0; i < d_nfuncs; i++)
{
if (!d_exports_lexically[i]->noname || show_allnames)
d_exports_lexically[i]->hint = hint++;
}
inform (_("Processed definitions"));
}
/**********************************************************************/
static void
usage (file, status)
FILE *file;
int status;
{
/* xgetext:c-format */
fprintf (file, _("Usage %s <options> <object-files>\n"), program_name);
/* xgetext:c-format */
fprintf (file, _(" -m --machine <machine> Create {arm, i386, ppc, thumb} DLL. [default: %s]\n"), mname);
fprintf (file, _(" -e --output-exp <outname> Generate an export file.\n"));
fprintf (file, _(" -l --output-lib <outname> Generate an interface library.\n"));
fprintf (file, _(" -a --add-indirect Add dll indirects to export file.\n"));
fprintf (file, _(" -D --dllname <name> Name of input dll to put into interface lib.\n"));
fprintf (file, _(" -d --input-def <deffile> Name of .def file to be read in.\n"));
fprintf (file, _(" -z --output-def <deffile> Name of .def file to be created.\n"));
fprintf (file, _(" --export-all-symbols Export all symbols to .def\n"));
fprintf (file, _(" --no-export-all-symbols Only export listed symbols\n"));
fprintf (file, _(" --exclude-symbols <list> Don't export <list>\n"));
fprintf (file, _(" --no-default-excludes Clear default exclude symbols\n"));
fprintf (file, _(" -b --base-file <basefile> Read linker generated base file.\n"));
fprintf (file, _(" -x --no-idata4 Don't generate idata$4 section.\n"));
fprintf (file, _(" -c --no-idata5 Don't generate idata$5 section.\n"));
fprintf (file, _(" -U --add-underscore Add underscores to symbols in interface library.\n"));
fprintf (file, _(" -k --kill-at Kill @<n> from exported names.\n"));
fprintf (file, _(" -S --as <name> Use <name> for assembler.\n"));
fprintf (file, _(" -f --as-flags <flags> Pass <flags> to the assembler.\n"));
#ifdef DLLTOOL_ARM
fprintf (file, _(" -i --interwork Support ARM/Thumb interworking.\n"));
#endif
fprintf (file, _(" -n --no-delete Keep temp files (repeat for extra preservation).\n"));
fprintf (file, _(" -v --verbose Be verbose.\n"));
fprintf (file, _(" -V --version Display the program version.\n"));
fprintf (file, _(" -h --help Display this information.\n"));
exit (status);
}
#define OPTION_EXPORT_ALL_SYMS 150
#define OPTION_NO_EXPORT_ALL_SYMS (OPTION_EXPORT_ALL_SYMS + 1)
#define OPTION_EXCLUDE_SYMS (OPTION_NO_EXPORT_ALL_SYMS + 1)
#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_EXCLUDE_SYMS + 1)
#define OPTION_NO_IDATA4 'x'
#define OPTION_NO_IDATA5 'c'
static const struct option long_options[] =
{
{"no-delete", no_argument, NULL, 'n'},
{"dllname", required_argument, NULL, 'D'},
{"no-idata4", no_argument, NULL, OPTION_NO_IDATA4},
{"no-idata5", no_argument, NULL, OPTION_NO_IDATA5},
{"output-exp", required_argument, NULL, 'e'},
{"output-def", required_argument, NULL, 'z'},
{"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL_SYMS},
{"no-export-all-symbols", no_argument, NULL, OPTION_NO_EXPORT_ALL_SYMS},
{"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMS},
{"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
{"output-lib", required_argument, NULL, 'l'},
{"def", required_argument, NULL, 'd'}, /* for compatiblity with older versions */
{"input-def", required_argument, NULL, 'd'},
{"add-underscore", no_argument, NULL, 'U'},
{"kill-at", no_argument, NULL, 'k'},
{"verbose", no_argument, NULL, 'v'},
{"version", no_argument, NULL, 'V'},
{"help", no_argument, NULL, 'h'},
{"machine", required_argument, NULL, 'm'},
{"add-indirect", no_argument, NULL, 'a'},
{"base-file", required_argument, NULL, 'b'},
{"as", required_argument, NULL, 'S'},
{"as-flags", required_argument, NULL, 'f'},
#ifdef DLLTOOL_ARM
{"interwork", no_argument, NULL, 'i'},
#endif
{0}
};
int
main (ac, av)
int ac;
char **av;
{
int c;
int i;
char *firstarg = 0;
program_name = av[0];
oav = av;
#ifdef HAVE_SETLOCALE
setlocale (LC_MESSAGES, "");
#endif
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
while ((c = getopt_long (ac, av, "xcz:S:aD:l:e:nkvVb:Uh?m:d:f:i",
long_options, 0))
!= EOF)
{
switch (c)
{
case OPTION_NO_IDATA4:
no_idata4 = 1;
break;
case OPTION_NO_IDATA5:
no_idata5 = 1;
break;
case OPTION_EXPORT_ALL_SYMS:
export_all_symbols = true;
break;
case OPTION_NO_EXPORT_ALL_SYMS:
export_all_symbols = false;
break;
case OPTION_EXCLUDE_SYMS:
add_excludes (optarg);
break;
case OPTION_NO_DEFAULT_EXCLUDES:
do_default_excludes = false;
break;
case 'S':
as_name = optarg;
break;
case 'f':
as_flags = optarg;
break;
/* ignored for compatibility */
case 'u':
break;
case 'a':
add_indirect = 1;
break;
case 'z':
output_def = fopen (optarg, FOPEN_WT);
break;
case 'D':
dll_name = optarg;
break;
case 'l':
imp_name = optarg;
break;
case 'e':
exp_name = optarg;
break;
case 'h':
usage (stdout, 0);
break;
case 'm':
mname = optarg;
break;
case 'v':
verbose = 1;
break;
case 'V':
print_version (program_name);
break;
#ifdef DLLTOOL_ARM
case 'i':
interwork = 1;
break;
#endif
case 'y':
#if 0
/* We don't currently define YYDEBUG when building
defparse.y. */
yydebug = 1;
#endif
break;
case 'U':
add_underscore = 1;
break;
case 'k':
killat = 1;
break;
case 'd':
def_file = optarg;
break;
case 'n':
dontdeltemps++;
break;
case 'b':
base_file = fopen (optarg, FOPEN_RB);
if (!base_file)
/* xgettext:c-format */
fatal (_("Unable to open base-file: %s"), optarg);
break;
default:
usage (stderr, 1);
break;
}
}
for (i = 0; mtable[i].type; i++)
{
if (strcmp (mtable[i].type, mname) == 0)
break;
}
if (!mtable[i].type)
/* xgettext:c-format */
fatal (_("Machine '%s' not supported"), mname);
machine = i;
#ifdef DLLTOOL_ARM
/* Always enable interworking for Thumb targets. */
if (machine == MTHUMB && (! interwork))
interwork = 1;
#endif
if (!dll_name && exp_name)
{
int len = strlen (exp_name) + 5;
dll_name = xmalloc (len);
strcpy (dll_name, exp_name);
strcat (dll_name, ".dll");
}
/* Don't use the default exclude list if we're reading only the
symbols in the .drectve section. The default excludes are meant
to avoid exporting DLL entry point and Cygwin32 impure_ptr. */
if (! export_all_symbols)
do_default_excludes = false;
if (do_default_excludes)
set_default_excludes ();
if (def_file)
process_def_file (def_file);
while (optind < ac)
{
if (!firstarg)
firstarg = av[optind];
scan_obj_file (av[optind]);
optind++;
}
mangle_defs ();
if (exp_name)
gen_exp_file ();
if (imp_name)
{
/* Make imp_name safe for use as a label. */
char *p;
imp_name_lab = xstrdup (imp_name);
for (p = imp_name_lab; *p; p++)
{
if (!isalpha ((unsigned char) *p) && !isdigit ((unsigned char) *p))
*p = '_';
}
head_label = make_label("_head_", imp_name_lab);
gen_lib_file ();
}
if (output_def)
gen_def_file ();
return 0;
}
Reference in New Issue View Git Blame Copy Permalink