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dlltool.c
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/* dlltool.c -- tool to generate stuff for PE style DLLs
Copyright (C) 1995-2024 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 3 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., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, 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> ] )
| ( <name1> = <module-name> . <external-name>))
[ @ <integer> ] [ NONAME ] [CONSTANT] [DATA] [PRIVATE] ) *
Declares name1 as an exported symbol from the
DLL, with optional ordinal number <integer>.
Or declares name1 as an alias (forward) of the function <external-name>
in the DLL <module-name>.
IMPORTS ( ( <internal-name> = <module-name> . <integer> )
| ( [ <internal-name> = ] <module-name> . <external-name> )) *
Declares that <external-name> or the exported function whose 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 refereed 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);
}
int printf (void)
{
return 9;
}
themain.c:
int main (void)
{
cdef ();
return 0;
}
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 and the program
gcc -c file1.c file2.c themain.c
# Optional: put the dll objects into a library
# (you don't have to, you could name all the object
# files on the dlltool line)
ar qcv thedll.in file1.o file2.o
ranlib thedll.in
# Run this tool over the DLL's .def file and generate an exports
# file (thedll.o) and an imports file (thedll.a).
# (You may have to use -S to tell dlltool where to find the assembler).
dlltool --def thedll.def --output-exp thedll.o --output-lib thedll.a
# Build the dll with the library and the export table
ld -o thedll.dll thedll.o thedll.in
# Link the executable with the import library
gcc -o themain.exe themain.o thedll.a
This example can be extended if relocations are needed in the DLL:
# Compile up the parts of the dll and the program
gcc -c file1.c file2.c themain.c
# Run this tool over the DLL's .def file and generate an imports file.
dlltool --def thedll.def --output-lib thedll.lib
# Link the executable with the import library and generate a base file
# at the same time
gcc -o themain.exe themain.o thedll.lib -Wl,--base-file -Wl,themain.base
# Run this tool over the DLL's .def file and generate an exports file
# which includes the relocations from the base file.
dlltool --def thedll.def --base-file themain.base --output-exp thedll.exp
# Build the dll with file1.o, file2.o and the export table
ld -o thedll.dll thedll.exp file1.o file2.o */
/* .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 numbers, which has meaning based on its highest bit:
- when cleared - pointer to entry in Hint Name Table
- when set - 16-bit function's ordinal number (rest of the bits are zeros)
Function ordinal number subtracted by Export Directory Table's
Ordinal Base is an index entry into the Export Address 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
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 name hint - index into Export Name Pointer Table.
The `asciz` is the name string - value in Export Name Table referenced
by some entry in Export Name Pointer Table. Name hint should be the
index of that entry in Export Name Pointer Table. It has no connection
with the function's ordinal number.
.idata$7 = dll name (eg: "kernel32.dll"). */
#include "sysdep.h"
#include "bfd.h"
#include "libiberty.h"
#include "getopt.h"
#include "demangle.h"
#include "dyn-string.h"
#include "bucomm.h"
#include "dlltool.h"
#include "safe-ctype.h"
#include "coff-bfd.h"
#include <time.h>
#include <assert.h>
#ifdef DLLTOOL_ARM
#include "coff/arm.h"
#include "coff/internal.h"
#endif
#ifdef DLLTOOL_DEFAULT_MX86_64
#include "coff/x86_64.h"
#endif
#ifdef DLLTOOL_DEFAULT_I386
#include "coff/i386.h"
#endif
#ifndef COFF_PAGE_SIZE
#define COFF_PAGE_SIZE ((bfd_vma) 4096)
#endif
#ifndef PAGE_MASK
#define PAGE_MASK ((bfd_vma) (- COFF_PAGE_SIZE))
#endif
/* Get current BFD error message. */
#define bfd_get_errmsg() (bfd_errmsg (bfd_get_error ()))
/* Forward references. */
static char *look_for_prog (const char *, const char *, int);
static char *deduce_name (const char *);
#ifdef DLLTOOL_MCORE_ELF
static void mcore_elf_cache_filename (const char *);
static void mcore_elf_gen_out_file (void);
#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 */
#define show_allnames 0
/* ifunc and ihead data structures: [email protected] 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. */
char * its_name; /* Optional import table symbol name. */
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 = NULL;
static char * as_flags = "";
static char *tmp_prefix = NULL;
static int no_idata4;
static int no_idata5;
static char *exp_name;
static char *imp_name;
static char *delayimp_name;
static char *identify_imp_name;
static bool identify_strict;
static bool deterministic = DEFAULT_AR_DETERMINISTIC;
/* Types used to implement a linked list of dllnames associated
with the specified import lib. Used by the identify_* code.
The head entry is acts as a sentinal node and is always empty
(head->dllname is NULL). */
typedef struct dll_name_list_node_t
{
char * dllname;
struct dll_name_list_node_t * next;
} dll_name_list_node_type;
typedef struct dll_name_list_t
{
dll_name_list_node_type * head;
dll_name_list_node_type * tail;
} dll_name_list_type;
/* Types used to pass data to iterator functions. */
typedef struct symname_search_data_t
{
const char *symname;
bool found;
} symname_search_data_type;
typedef struct identify_data_t
{
dll_name_list_type *list;
bool ms_style_implib;
} identify_data_type;
static char *head_label;
static char *imp_name_lab;
static char *dll_name;
static int dll_name_set_by_exp_name;
static int add_indirect = 0;
static int add_underscore = 0;
static int add_stdcall_underscore = 0;
/* This variable can hold three different values. The value
-1 (default) means that default underscoring should be used,
zero means that no underscoring should be done, and one
indicates that underscoring should be done. */
static int leading_underscore = -1;
static int dontdeltemps = 0;
/* TRUE if we should export all symbols. Otherwise, we only export
symbols listed in .drectve sections or in the def file. */
static bool export_all_symbols;
/* TRUE if we should exclude the symbols in DEFAULT_EXCLUDES when
exporting all symbols. */
static bool do_default_excludes = true;
static bool use_nul_prefixed_import_tables = false;
/* Default symbols to exclude when exporting all the symbols. */
static const char *default_excludes = "DllMain@12,DllEntryPoint@0,impure_ptr";
/* TRUE if we should add __imp_<SYMBOL> to import libraries for backward
compatibility to old Cygwin releases. */
static bool create_compat_implib;
/* TRUE if we have to write PE+ import libraries. */
static bool create_for_pep;
static char *def_file;
extern char * program_name;
static int machine;
static int killat;
static int add_stdcall_alias;
static const char *ext_prefix_alias;
static int verbose;
static FILE *output_def;
static FILE *base_file;
#ifdef DLLTOOL_DEFAULT_ARM
static const char *mname = "arm";
#endif
#ifdef DLLTOOL_DEFAULT_ARM_WINCE
static const char *mname = "arm-wince";
#endif
#ifdef DLLTOOL_DEFAULT_AARCH64
/* arm64 rather than aarch64 to match llvm-dlltool */
static const char *mname = "arm64";
#endif
#ifdef DLLTOOL_DEFAULT_I386
static const char *mname = "i386";
#endif
#ifdef DLLTOOL_DEFAULT_MX86_64
static const char *mname = "i386:x86-64";
#endif
#ifdef DLLTOOL_DEFAULT_SH
static const char *mname = "sh";
#endif
#ifdef DLLTOOL_DEFAULT_MIPS
static const char *mname = "mips";
#endif
#ifdef DLLTOOL_DEFAULT_MCORE
static const char * mname = "mcore-le";
#endif
#ifdef DLLTOOL_DEFAULT_MCORE_ELF
static const char * mname = "mcore-elf";
static char * mcore_elf_out_file = NULL;
static char * mcore_elf_linker = NULL;
static char * mcore_elf_linker_flags = NULL;
#define DRECTVE_SECTION_NAME ((machine == MMCORE_ELF || machine == MMCORE_ELF_LE) ? ".exports" : ".drectve")
#endif
#ifndef DRECTVE_SECTION_NAME
#define DRECTVE_SECTION_NAME ".drectve"
#endif
/* What's the right name for this ? */
#define PATHMAX 250
/* External name alias numbering starts here. */
#define PREFIX_ALIAS_BASE 20000
char *tmp_asm_buf;
char *tmp_head_s_buf;
char *tmp_head_o_buf;
char *tmp_tail_s_buf;
char *tmp_tail_o_buf;
char *tmp_stub_buf;
#define TMP_ASM dlltmp (&tmp_asm_buf, "%sc.s")
#define TMP_HEAD_S dlltmp (&tmp_head_s_buf, "%sh.s")
#define TMP_HEAD_O dlltmp (&tmp_head_o_buf, "%sh.o")
#define TMP_TAIL_S dlltmp (&tmp_tail_s_buf, "%st.s")
#define TMP_TAIL_O dlltmp (&tmp_tail_o_buf, "%st.o")
#define TMP_STUB dlltmp (&tmp_stub_buf, "%ss")
/* This bit of assembly does jmp * .... */
static const unsigned char i386_jtab[] =
{
0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90
};
static const unsigned char i386_dljtab[] =
{
0xFF, 0x25, 0x00, 0x00, 0x00, 0x00, /* jmp __imp__function */
0xB8, 0x00, 0x00, 0x00, 0x00, /* mov eax, offset __imp__function */
0xE9, 0x00, 0x00, 0x00, 0x00 /* jmp __tailMerge__dllname */
};
static const unsigned char i386_x64_dljtab[] =
{
0xFF, 0x25, 0x00, 0x00, 0x00, 0x00, /* jmp __imp__function */
0x48, 0x8d, 0x05, /* leaq rax, (__imp__function) */
0x00, 0x00, 0x00, 0x00,
0xE9, 0x00, 0x00, 0x00, 0x00 /* jmp __tailMerge__dllname */
};
static const unsigned char arm_jtab[] =
{
0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */
0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */
0, 0, 0, 0
};
static const unsigned char arm_interwork_jtab[] =
{
0x04, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */
0x00, 0xc0, 0x9c, 0xe5, /* ldr ip, [ip] */
0x1c, 0xff, 0x2f, 0xe1, /* bx ip */
0, 0, 0, 0
};
static const unsigned char thumb_jtab[] =
{
0x40, 0xb4, /* push {r6} */
0x02, 0x4e, /* ldr r6, [pc, #8] */
0x36, 0x68, /* ldr r6, [r6] */
0xb4, 0x46, /* mov ip, r6 */
0x40, 0xbc, /* pop {r6} */
0x60, 0x47, /* bx ip */
0, 0, 0, 0
};
static const unsigned char mcore_be_jtab[] =
{
0x71, 0x02, /* lrw r1,2 */
0x81, 0x01, /* ld.w r1,(r1,0) */
0x00, 0xC1, /* jmp r1 */
0x12, 0x00, /* nop */
0x00, 0x00, 0x00, 0x00 /* <address> */
};
static const unsigned char mcore_le_jtab[] =
{
0x02, 0x71, /* lrw r1,2 */
0x01, 0x81, /* ld.w r1,(r1,0) */
0xC1, 0x00, /* jmp r1 */
0x00, 0x12, /* nop */
0x00, 0x00, 0x00, 0x00 /* <address> */
};
static const unsigned char aarch64_jtab[] =
{
0x10, 0x00, 0x00, 0x90, /* adrp x16, 0 */
0x10, 0x02, 0x00, 0x91, /* add x16, x16, #0x0 */
0x10, 0x02, 0x40, 0xf9, /* ldr x16, [x16] */
0x00, 0x02, 0x1f, 0xd6 /* br x16 */
};
static const char i386_trampoline[] =
"\tpushl %%ecx\n"
"\tpushl %%edx\n"
"\tpushl %%eax\n"
"\tpushl $__DELAY_IMPORT_DESCRIPTOR_%s\n"
"\tcall ___delayLoadHelper2@8\n"
"\tpopl %%edx\n"
"\tpopl %%ecx\n"
"\tjmp *%%eax\n";
/* Save integer arg regs in parameter space reserved by our caller
above the return address. Allocate space for six fp arg regs plus
parameter space possibly used by __delayLoadHelper2 plus alignment.
We enter with the stack offset from 16-byte alignment by the return
address, so allocate 96 + 32 + 8 = 136 bytes. Note that only the
first four xmm regs are used to pass fp args, but the first six
vector ymm (zmm too?) are used to pass vector args. We are
assuming that volatile vector regs are not modified inside
__delayLoadHelper2. However, it is known that at least xmm0 and
xmm1 are trashed in some versions of Microsoft dlls, and if xmm4 or
xmm5 are also used then that would trash the lower bits of ymm4 and
ymm5. If it turns out that vector insns with a vex prefix are used
then we'll need to save ymm0-5 here but that can't be done without
first testing cpuid and xcr0. */
static const char i386_x64_trampoline[] =
"\tsubq $136, %%rsp\n"
"\t.seh_stackalloc 136\n"
"\t.seh_endprologue\n"
"\tmovq %%rcx, 136+8(%%rsp)\n"
"\tmovq %%rdx, 136+16(%%rsp)\n"
"\tmovq %%r8, 136+24(%%rsp)\n"
"\tmovq %%r9, 136+32(%%rsp)\n"
"\tmovaps %%xmm0, 32(%%rsp)\n"
"\tmovaps %%xmm1, 48(%%rsp)\n"
"\tmovaps %%xmm2, 64(%%rsp)\n"
"\tmovaps %%xmm3, 80(%%rsp)\n"
"\tmovaps %%xmm4, 96(%%rsp)\n"
"\tmovaps %%xmm5, 112(%%rsp)\n"
"\tmovq %%rax, %%rdx\n"
"\tleaq __DELAY_IMPORT_DESCRIPTOR_%s(%%rip), %%rcx\n"
"\tcall __delayLoadHelper2\n"
"\tmovq 136+8(%%rsp), %%rcx\n"
"\tmovq 136+16(%%rsp), %%rdx\n"
"\tmovq 136+24(%%rsp), %%r8\n"
"\tmovq 136+32(%%rsp), %%r9\n"
"\tmovaps 32(%%rsp), %%xmm0\n"
"\tmovaps 48(%%rsp), %%xmm1\n"
"\tmovaps 64(%%rsp), %%xmm2\n"
"\tmovaps 80(%%rsp), %%xmm3\n"
"\tmovaps 96(%%rsp), %%xmm4\n"
"\tmovaps 112(%%rsp), %%xmm5\n"
"\taddq $136, %%rsp\n"
"\tjmp *%%rax\n";
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_default_as_switches;
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. */
const unsigned char *how_dljtab;
int how_dljtab_size; /* Size of the dljtab entry. */
int how_dljtab_roff1; /* Offset for the ind 32 reloc into idata 5. */
int how_dljtab_roff2; /* Offset for the ind 32 reloc into idata 5. */
int how_dljtab_roff3; /* Offset for the ind 32 reloc into idata 5. */
bool how_seh;
const char *trampoline;
};
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", "-mapcs-32",
"pe-arm-little", bfd_arch_arm,
arm_jtab, sizeof (arm_jtab), 8,
0, 0, 0, 0, 0, false, 0
}
,
{
#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,
i386_dljtab, sizeof (i386_dljtab), 2, 7, 12, false, i386_trampoline
}
,
{
#define MTHUMB 2
"thumb", ".byte", ".short", ".long", ".asciz", "@",
"push\t{r6}\n\tldr\tr6, [pc, #8]\n\tldr\tr6, [r6]\n\tmov\tip, r6\n\tpop\t{r6}\n\tbx\tip",
".global", ".space", ".align\t2",".align\t4", "-mthumb-interwork",
"pe-arm-little", bfd_arch_arm,
thumb_jtab, sizeof (thumb_jtab), 12,
0, 0, 0, 0, 0, false, 0
}
,
#define MARM_INTERWORK 3
{
"arm_interwork", ".byte", ".short", ".long", ".asciz", "@",
"ldr\tip,[pc]\n\tldr\tip,[ip]\n\tbx\tip\n\t.long",
".global", ".space", ".align\t2",".align\t4", "-mthumb-interwork",
"pe-arm-little", bfd_arch_arm,
arm_interwork_jtab, sizeof (arm_interwork_jtab), 12,
0, 0, 0, 0, 0, false, 0
}
,
{
#define MMCORE_BE 4
"mcore-be", ".byte", ".short", ".long", ".asciz", "//",
"lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
".global", ".space", ".align\t2",".align\t4", "",
"pe-mcore-big", bfd_arch_mcore,
mcore_be_jtab, sizeof (mcore_be_jtab), 8,
0, 0, 0, 0, 0, false, 0
}
,
{
#define MMCORE_LE 5
"mcore-le", ".byte", ".short", ".long", ".asciz", "//",
"lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
".global", ".space", ".align\t2",".align\t4", "-EL",
"pe-mcore-little", bfd_arch_mcore,
mcore_le_jtab, sizeof (mcore_le_jtab), 8,
0, 0, 0, 0, 0, false, 0
}
,
{
#define MMCORE_ELF 6
"mcore-elf-be", ".byte", ".short", ".long", ".asciz", "//",
"lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
".global", ".space", ".align\t2",".align\t4", "",
"elf32-mcore-big", bfd_arch_mcore,
mcore_be_jtab, sizeof (mcore_be_jtab), 8,
0, 0, 0, 0, 0, false, 0
}
,
{
#define MMCORE_ELF_LE 7
"mcore-elf-le", ".byte", ".short", ".long", ".asciz", "//",
"lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
".global", ".space", ".align\t2",".align\t4", "-EL",
"elf32-mcore-little", bfd_arch_mcore,
mcore_le_jtab, sizeof (mcore_le_jtab), 8,
0, 0, 0, 0, 0, false, 0
}
,
{
#define MARM_WINCE 8
"arm-wince", ".byte", ".short", ".long", ".asciz", "@",
"ldr\tip,[pc]\n\tldr\tpc,[ip]\n\t.long",
".global", ".space", ".align\t2",".align\t4", "-mapcs-32",
"pe-arm-wince-little", bfd_arch_arm,
arm_jtab, sizeof (arm_jtab), 8,
0, 0, 0, 0, 0, false, 0
}
,
{
#define MX86 9
"i386:x86-64", ".byte", ".short", ".long", ".asciz", "#",
"jmp *", ".global", ".space", ".align\t2",".align\t4", "",
"pe-x86-64",bfd_arch_i386,
i386_jtab, sizeof (i386_jtab), 2,
i386_x64_dljtab, sizeof (i386_x64_dljtab), 2, 9, 14, true, i386_x64_trampoline
}
,
{
#define MAARCH64 10
"arm64", ".byte", ".short", ".long", ".asciz", "//",
"bl ", ".global", ".space", ".balign\t2", ".balign\t4", "",
"pe-aarch64-little", bfd_arch_aarch64,
aarch64_jtab, sizeof (aarch64_jtab), 0,
0, 0, 0, 0, 0, false, 0
}
,
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};
typedef struct dlist
{
char *text;
struct dlist *next;
}
dlist_type;
typedef struct export
{
const char *name;
const char *internal_name;
const char *import_name;
const char *its_name;
int ordinal;
int constant;
int noname; /* Don't put name in image file. */
int private; /* Don't put reference in import lib. */
int data;
int hint;
int forward; /* Number of forward label, 0 means no forward. */
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 (int);
static const char *rvabefore (int);
static const char *asm_prefix (int, const char *);
static void process_def_file (const char *);
static void new_directive (char *);
static void append_import (const char *, const char *, int, const char *);
static void run (const char *, char *);
static void scan_drectve_symbols (bfd *);
static void scan_filtered_symbols (bfd *, void *, long, unsigned int);
static void add_excludes (const char *);
static bool match_exclude (const char *);
static void set_default_excludes (void);
static long filter_symbols (bfd *, void *, long, unsigned int);
static void scan_all_symbols (bfd *);
static void scan_open_obj_file (bfd *);
static void scan_obj_file (const char *);
static void dump_def_info (FILE *);
static int sfunc (const void *, const void *);
static void flush_page (FILE *, bfd_vma *, bfd_vma, int);
static void gen_def_file (void);
static void generate_idata_ofile (FILE *);
static void assemble_file (const char *, const char *);
static void gen_exp_file (void);
static const char *xlate (const char *);
static char *make_label (const char *, const char *);
static char *make_imp_label (const char *, const char *);
static bfd *make_one_lib_file (export_type *, int, int);
static bfd *make_head (void);
static bfd *make_tail (void);
static bfd *make_delay_head (void);
static void gen_lib_file (int);
static void dll_name_list_append (dll_name_list_type *, bfd_byte *);
static int dll_name_list_count (dll_name_list_type *);
static void dll_name_list_print (dll_name_list_type *);
static void dll_name_list_free_contents (dll_name_list_node_type *);
static void dll_name_list_free (dll_name_list_type *);
static dll_name_list_type * dll_name_list_create (void);
static void identify_dll_for_implib (void);
static void identify_search_archive
(bfd *, void (*) (bfd *, bfd *, void *), void *);
static void identify_search_member (bfd *, bfd *, void *);
static bool identify_process_section_p (asection *, bool);
static void identify_search_section (bfd *, asection *, void *);
static void identify_member_contains_symname (bfd *, bfd *, void *);
static int pfunc (const void *, const void *);
static int nfunc (const void *, const void *);
static void remove_null_names (export_type **);
static void process_duplicates (export_type **);
static void fill_ordinals (export_type **);
static void mangle_defs (void);
static void usage (FILE *, int);
static void inform (const char *, ...) ATTRIBUTE_PRINTF_1;
static void set_dll_name_from_def (const char *name, char is_dll);
static char *
prefix_encode (char *start, unsigned code)
{
static char alpha[26] = "abcdefghijklmnopqrstuvwxyz";
static char buf[32];
char *p;
strcpy (buf, start);
p = strchr (buf, '\0');
do
*p++ = alpha[code % sizeof (alpha)];
while ((code /= sizeof (alpha)) != 0);
*p = '\0';
return buf;
}
static char *
dlltmp (char **buf, const char *fmt)
{
if (!*buf)
{
*buf = xmalloc (strlen (tmp_prefix) + 64);
sprintf (*buf, fmt, tmp_prefix);
}
return *buf;
}
static void
inform (const char * message, ...)
{
va_list args;
va_start (args, message);
if (!verbose)
return;
report (message, args);
va_end (args);
}
static const char *
rvaafter (int mach)
{
switch (mach)
{
case MARM:
case M386:
case MX86:
case MTHUMB:
case MARM_INTERWORK:
case MMCORE_BE:
case MMCORE_LE:
case MMCORE_ELF:
case MMCORE_ELF_LE:
case MARM_WINCE:
case MAARCH64:
break;
default:
/* xgettext:c-format */
fatal (_("Internal error: Unknown machine type: %d"), mach);
break;
}
return "";
}
static const char *
rvabefore (int mach)
{
switch (mach)
{
case MARM:
case M386:
case MX86:
case MTHUMB:
case MARM_INTERWORK:
case MMCORE_BE:
case MMCORE_LE:
case MMCORE_ELF:
case MMCORE_ELF_LE:
case MARM_WINCE:
case MAARCH64:
return ".rva\t";
default:
/* xgettext:c-format */
fatal (_("Internal error: Unknown machine type: %d"), mach);
break;
}
return "";
}
static const char *
asm_prefix (int mach, const char *name)
{
switch (mach)
{
case MARM:
case MTHUMB:
case MARM_INTERWORK:
case MMCORE_BE:
case MMCORE_LE:
case MMCORE_ELF:
case MMCORE_ELF_LE:
case MARM_WINCE:
case MAARCH64:
break;
case M386:
case MX86:
/* Symbol names starting with ? do not have a leading underscore. */
if ((name && *name == '?') || leading_underscore == 0)
break;
else
return "_";
default:
/* xgettext:c-format */
fatal (_("Internal error: Unknown machine type: %d"), mach);
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(NAME) asm_prefix (machine, (NAME))
#define ASM_ALIGN_LONG mtable[machine].how_align_long