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wine/tools/winebuild/spec32.c

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/*
* 32-bit spec files
*
* Copyright 1993 Robert J. Amstadt
* Copyright 1995 Martin von Loewis
* Copyright 1995, 1996, 1997 Alexandre Julliard
* Copyright 1997 Eric Youngdale
* Copyright 1999 Ulrich Weigand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include "build.h"
#define IMAGE_FILE_MACHINE_UNKNOWN 0
#define IMAGE_FILE_MACHINE_I386 0x014c
#define IMAGE_FILE_MACHINE_POWERPC 0x01f0
#define IMAGE_FILE_MACHINE_AMD64 0x8664
#define IMAGE_FILE_MACHINE_ARMNT 0x01C4
#define IMAGE_FILE_MACHINE_ARM64 0xaa64
#define IMAGE_SIZEOF_NT_OPTIONAL32_HEADER 224
#define IMAGE_SIZEOF_NT_OPTIONAL64_HEADER 240
#define IMAGE_NT_OPTIONAL_HDR32_MAGIC 0x10b
#define IMAGE_NT_OPTIONAL_HDR64_MAGIC 0x20b
#define IMAGE_ROM_OPTIONAL_HDR_MAGIC 0x107
int needs_get_pc_thunk = 0;
static const char builtin_signature[32] = "Wine builtin DLL";
static const char fakedll_signature[32] = "Wine placeholder DLL";
static struct strarray spec_extra_ld_symbols = { 0 }; /* list of extra symbols that ld should resolve */
/* add a symbol to the list of extra symbols that ld must resolve */
void add_spec_extra_ld_symbol( const char *name )
{
strarray_add( &spec_extra_ld_symbols, name );
}
static unsigned int hash_filename( const char *name )
{
/* FNV-1 hash */
unsigned int ret = 2166136261u;
while (*name) ret = (ret * 16777619) ^ *name++;
return ret;
}
/* check if entry point needs a relay thunk */
static inline int needs_relay( const ORDDEF *odp )
{
/* skip nonexistent entry points */
if (!odp) return 0;
/* skip non-functions */
switch (odp->type)
{
case TYPE_STDCALL:
case TYPE_CDECL:
break;
case TYPE_STUB:
if (odp->u.func.nb_args != -1) break;
/* fall through */
default:
return 0;
}
/* skip norelay and forward entry points */
if (odp->flags & (FLAG_NORELAY|FLAG_FORWARD)) return 0;
return 1;
}
static int is_float_arg( const ORDDEF *odp, int arg )
{
if (arg >= odp->u.func.nb_args) return 0;
return (odp->u.func.args[arg] == ARG_FLOAT || odp->u.func.args[arg] == ARG_DOUBLE);
}
/* check if dll will output relay thunks */
static int has_relays( DLLSPEC *spec )
{
int i;
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (needs_relay( odp )) return 1;
}
return 0;
}
static int get_exports_count( DLLSPEC *spec )
{
if (spec->base > spec->limit) return 0;
return spec->limit - spec->base + 1;
}
static int cmp_func_args( const void *p1, const void *p2 )
{
const ORDDEF *odp1 = *(const ORDDEF **)p1;
const ORDDEF *odp2 = *(const ORDDEF **)p2;
return odp2->u.func.nb_args - odp1->u.func.nb_args;
}
static void get_arg_string( ORDDEF *odp, char str[MAX_ARGUMENTS + 1] )
{
int i;
for (i = 0; i < odp->u.func.nb_args; i++)
{
switch (odp->u.func.args[i])
{
case ARG_STR: str[i] = 's'; break;
case ARG_WSTR: str[i] = 'w'; break;
case ARG_FLOAT: str[i] = 'f'; break;
case ARG_DOUBLE: str[i] = 'd'; break;
case ARG_INT64:
case ARG_INT128:
if (get_ptr_size() == 4)
{
str[i] = (odp->u.func.args[i] == ARG_INT64) ? 'j' : 'k';
break;
}
/* fall through */
case ARG_LONG:
case ARG_PTR:
default:
str[i] = 'i';
break;
}
}
if (odp->flags & (FLAG_THISCALL | FLAG_FASTCALL)) str[0] = 't';
if ((odp->flags & FLAG_FASTCALL) && odp->u.func.nb_args > 1) str[1] = 't';
/* append return value */
if (get_ptr_size() == 4 && (odp->flags & FLAG_RET64))
strcpy( str + i, "J" );
else
strcpy( str + i, "I" );
}
static void output_data_directories( const char *names[16] )
{
int i;
for (i = 0; i < 16; i++)
{
if (names[i])
{
output_rva( "%s", names[i] );
output( "\t.long %s_end - %s\n", names[i], names[i] );
}
else output( "\t.long 0,0\n" );
}
}
/*******************************************************************
* build_args_string
*/
static char *build_args_string( DLLSPEC *spec )
{
int i, count = 0, len = 1;
char *p, *buffer;
char str[MAX_ARGUMENTS + 2];
ORDDEF **funcs;
funcs = xmalloc( (spec->limit + 1 - spec->base) * sizeof(*funcs) );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!needs_relay( odp )) continue;
funcs[count++] = odp;
len += odp->u.func.nb_args + 1;
}
/* sort functions by decreasing number of arguments */
qsort( funcs, count, sizeof(*funcs), cmp_func_args );
buffer = xmalloc( len );
buffer[0] = 0;
/* build the arguments string, reusing substrings where possible */
for (i = 0; i < count; i++)
{
get_arg_string( funcs[i], str );
if (!(p = strstr( buffer, str )))
{
p = buffer + strlen( buffer );
strcpy( p, str );
}
funcs[i]->u.func.args_str_offset = p - buffer;
}
free( funcs );
return buffer;
}
/*******************************************************************
* output_relay_debug
*
* Output entry points for relay debugging
*/
static void output_relay_debug( DLLSPEC *spec )
{
int i;
/* first the table of entry point offsets */
output( "\t%s\n", get_asm_rodata_section() );
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_entry_point_offsets:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (needs_relay( odp ))
output( "\t.long __wine_spec_relay_entry_point_%d-__wine_spec_relay_entry_points\n", i );
else
output( "\t.long 0\n" );
}
/* then the strings of argument types */
output( ".L__wine_spec_relay_args_string:\n" );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), build_args_string( spec ));
/* then the relay thunks */
output( "\t.text\n" );
if (thumb_mode) output( "\t.thumb_func\n" );
output( "__wine_spec_relay_entry_points:\n" );
output( "\tnop\n" ); /* to avoid 0 offset */
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!needs_relay( odp )) continue;
switch (target.cpu)
{
case CPU_i386:
output( "\t.align %d\n", get_alignment(4) );
output( "\t.long 0x90909090,0x90909090\n" );
output( "__wine_spec_relay_entry_point_%d:\n", i );
output_cfi( ".cfi_startproc" );
output( "\t.byte 0x8b,0xff,0x55,0x8b,0xec,0x5d\n" ); /* hotpatch prolog */
if (odp->flags & (FLAG_THISCALL | FLAG_FASTCALL)) /* add the register arguments */
{
output( "\tpopl %%eax\n" );
if ((odp->flags & FLAG_FASTCALL) && get_args_size( odp ) > 4) output( "\tpushl %%edx\n" );
output( "\tpushl %%ecx\n" );
output( "\tpushl %%eax\n" );
}
output( "\tpushl $%u\n", (odp->u.func.args_str_offset << 16) | (i - spec->base) );
output_cfi( ".cfi_adjust_cfa_offset 4" );
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tleal .L__wine_spec_relay_descr-1b(%%eax),%%eax\n" );
needs_get_pc_thunk = 1;
}
else output( "\tmovl $.L__wine_spec_relay_descr,%%eax\n" );
output( "\tpushl %%eax\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tcall *4(%%eax)\n" );
output_cfi( ".cfi_adjust_cfa_offset -8" );
if (odp->type == TYPE_STDCALL)
output( "\tret $%u\n", get_args_size( odp ));
else
output( "\tret\n" );
output_cfi( ".cfi_endproc" );
break;
case CPU_ARM:
{
int j, has_float = 0;
if (strcmp( float_abi_option, "soft" ))
for (j = 0; j < odp->u.func.nb_args && !has_float; j++)
has_float = is_float_arg( odp, j );
output( "\t.align %d\n", get_alignment(4) );
output( "__wine_spec_relay_entry_point_%d:\n", i );
output_cfi( ".cfi_startproc" );
output( "\tpush {r0-r3}\n" );
output( "\tmov r2, SP\n");
if (has_float) output( "\tvpush {s0-s15}\n" );
output( "\tpush {LR}\n" );
output( "\tsub SP, #4\n");
output( "\tmovw r1,#%u\n", i - spec->base );
output( "\tmovt r1,#%u\n", odp->u.func.args_str_offset );
if (UsePIC)
{
output( "\tldr r0, 2f\n");
output( "1:\tadd r0, PC\n");
}
else
{
output( "\tmovw r0, :lower16:.L__wine_spec_relay_descr\n" );
output( "\tmovt r0, :upper16:.L__wine_spec_relay_descr\n" );
}
output( "\tldr IP, [r0, #4]\n");
output( "\tblx IP\n");
output( "\tldr IP, [SP, #4]\n" );
output( "\tadd SP, #%u\n", 24 + (has_float ? 64 : 0) );
output( "\tbx IP\n");
if (UsePIC) output( "2:\t.long .L__wine_spec_relay_descr-1b-%u\n", thumb_mode ? 4 : 8 );
output_cfi( ".cfi_endproc" );
break;
}
case CPU_ARM64:
output( "\t.align %d\n", get_alignment(4) );
output( "__wine_spec_relay_entry_point_%d:\n", i );
output_cfi( ".cfi_startproc" );
switch (odp->u.func.nb_args)
{
default:
case 8:
case 7: output( "\tstp x6, x7, [SP,#-16]!\n" );
/* fall through */
case 6:
case 5: output( "\tstp x4, x5, [SP,#-16]!\n" );
/* fall through */
case 4:
case 3: output( "\tstp x2, x3, [SP,#-16]!\n" );
/* fall through */
case 2:
case 1: output( "\tstp x0, x1, [SP,#-16]!\n" );
/* fall through */
case 0: break;
}
output( "\tmov x2, SP\n");
output( "\tstp x29, x30, [SP,#-16]!\n" );
output( "\tstp x8, x9, [SP,#-16]!\n" );
output( "\tmov w1, #%u\n", odp->u.func.args_str_offset << 16 );
if (i - spec->base) output( "\tadd w1, w1, #%u\n", i - spec->base );
output( "\tadrp x0, %s\n", arm64_page(".L__wine_spec_relay_descr") );
output( "\tadd x0, x0, #%s\n", arm64_pageoff(".L__wine_spec_relay_descr") );
output( "\tldr x3, [x0, #8]\n");
output( "\tblr x3\n");
output( "\tadd SP, SP, #16\n" );
output( "\tldp x29, x30, [SP], #16\n" );
if (odp->u.func.nb_args)
output( "\tadd SP, SP, #%u\n", 8 * ((min(odp->u.func.nb_args, 8) + 1) & ~1) );
output( "\tret\n");
output_cfi( ".cfi_endproc" );
break;
case CPU_x86_64:
output( "\t.align %d\n", get_alignment(4) );
output( "\t.long 0x90909090,0x90909090\n" );
output( "__wine_spec_relay_entry_point_%d:\n", i );
output_cfi( ".cfi_startproc" );
switch (odp->u.func.nb_args)
{
default: output( "\tmovq %%%s,32(%%rsp)\n", is_float_arg( odp, 3 ) ? "xmm3" : "r9" );
/* fall through */
case 3: output( "\tmovq %%%s,24(%%rsp)\n", is_float_arg( odp, 2 ) ? "xmm2" : "r8" );
/* fall through */
case 2: output( "\tmovq %%%s,16(%%rsp)\n", is_float_arg( odp, 1 ) ? "xmm1" : "rdx" );
/* fall through */
case 1: output( "\tmovq %%%s,8(%%rsp)\n", is_float_arg( odp, 0 ) ? "xmm0" : "rcx" );
/* fall through */
case 0: break;
}
output( "\tmovl $%u,%%edx\n", (odp->u.func.args_str_offset << 16) | (i - spec->base) );
output( "\tleaq .L__wine_spec_relay_descr(%%rip),%%rcx\n" );
output( "\tcallq *8(%%rcx)\n" );
output( "\tret\n" );
output_cfi( ".cfi_endproc" );
break;
default:
assert(0);
}
}
}
/*******************************************************************
* output_exports
*
* Output the export table for a Win32 module.
*/
void output_exports( DLLSPEC *spec )
{
int i, fwd_size = 0;
int needs_imports = 0;
int needs_relay = has_relays( spec );
int nr_exports = get_exports_count( spec );
const char *func_ptr = is_pe() ? ".rva" : get_asm_ptr_keyword();
const char *name;
if (!nr_exports) return;
output( "\n/* export table */\n\n" );
output( "\t%s\n", get_asm_export_section() );
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_exports:\n" );
/* export directory header */
output( "\t.long 0\n" ); /* Characteristics */
output( "\t.long %u\n", hash_filename(spec->file_name) ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* MajorVersion/MinorVersion */
output_rva( ".L__wine_spec_exp_names" ); /* Name */
output( "\t.long %u\n", spec->base ); /* Base */
output( "\t.long %u\n", nr_exports ); /* NumberOfFunctions */
output( "\t.long %u\n", spec->nb_names ); /* NumberOfNames */
output_rva( ".L__wine_spec_exports_funcs " ); /* AddressOfFunctions */
if (spec->nb_names)
{
output_rva( ".L__wine_spec_exp_name_ptrs" ); /* AddressOfNames */
output_rva( ".L__wine_spec_exp_ordinals" ); /* AddressOfNameOrdinals */
}
else
{
output( "\t.long 0\n" ); /* AddressOfNames */
output( "\t.long 0\n" ); /* AddressOfNameOrdinals */
}
/* output the function pointers */
output( "\n.L__wine_spec_exports_funcs:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!odp) output( "\t%s 0\n", is_pe() ? ".long" : get_asm_ptr_keyword() );
else switch(odp->type)
{
case TYPE_EXTERN:
case TYPE_STDCALL:
case TYPE_VARARGS:
case TYPE_CDECL:
if (odp->flags & FLAG_FORWARD)
{
output( "\t%s .L__wine_spec_forwards+%u\n", func_ptr, fwd_size );
fwd_size += strlen(odp->link_name) + 1;
}
else if ((odp->flags & FLAG_IMPORT) && (target.cpu == CPU_i386 || target.cpu == CPU_x86_64))
{
name = odp->name ? odp->name : odp->export_name;
if (name) output( "\t%s %s_%s\n", func_ptr, asm_name("__wine_spec_imp"), name );
else output( "\t%s %s_%u\n", func_ptr, asm_name("__wine_spec_imp"), i );
needs_imports = 1;
}
else if (odp->flags & FLAG_EXT_LINK)
{
output( "\t%s %s_%s\n", func_ptr, asm_name("__wine_spec_ext_link"), odp->link_name );
}
else
{
output( "\t%s %s\n", func_ptr, asm_name( get_link_name( odp )));
}
break;
case TYPE_STUB:
output( "\t%s %s\n", func_ptr, asm_name( get_stub_name( odp, spec )) );
break;
default:
assert(0);
}
}
if (spec->nb_names)
{
/* output the function name pointers */
int namepos = strlen(spec->file_name) + 1;
output( "\n.L__wine_spec_exp_name_ptrs:\n" );
for (i = 0; i < spec->nb_names; i++)
{
output_rva( ".L__wine_spec_exp_names + %u", namepos );
namepos += strlen(spec->names[i]->name) + 1;
}
/* output the function ordinals */
output( "\n.L__wine_spec_exp_ordinals:\n" );
for (i = 0; i < spec->nb_names; i++)
{
output( "\t.short %d\n", spec->names[i]->ordinal - spec->base );
}
if (spec->nb_names % 2)
{
output( "\t.short 0\n" );
}
}
if (needs_relay)
{
output( "\t.long 0xdeb90002\n" ); /* magic */
if (is_pe()) output_rva( ".L__wine_spec_relay_descr" );
else output( "\t.long 0\n" );
}
/* output the export name strings */
output( "\n.L__wine_spec_exp_names:\n" );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
for (i = 0; i < spec->nb_names; i++)
output( "\t%s \"%s\"\n",
get_asm_string_keyword(), spec->names[i]->name );
/* output forward strings */
if (fwd_size)
{
output( "\n.L__wine_spec_forwards:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (odp && (odp->flags & FLAG_FORWARD))
output( "\t%s \"%s\"\n", get_asm_string_keyword(), odp->link_name );
}
}
/* output relays */
if (needs_relay)
{
if (is_pe())
{
output( "\t.data\n" );
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
}
else
{
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( ".L__wine_spec_exports_end:\n" );
}
output( ".L__wine_spec_relay_descr:\n" );
output( "\t%s 0xdeb90002\n", get_asm_ptr_keyword() ); /* magic */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* relay func */
output( "\t%s 0\n", get_asm_ptr_keyword() ); /* private data */
output( "\t%s __wine_spec_relay_entry_points\n", get_asm_ptr_keyword() );
output( "\t%s .L__wine_spec_relay_entry_point_offsets\n", get_asm_ptr_keyword() );
output( "\t%s .L__wine_spec_relay_args_string\n", get_asm_ptr_keyword() );
output_relay_debug( spec );
}
else if (!is_pe())
{
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( ".L__wine_spec_exports_end:\n" );
output( "\t%s 0\n", get_asm_ptr_keyword() );
}
/* output import thunks */
if (!needs_imports) return;
output( "\t.text\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!odp) continue;
if (!(odp->flags & FLAG_IMPORT)) continue;
name = odp->name ? odp->name : odp->export_name;
output( "\t.align %d\n", get_alignment(4) );
output( "\t.long 0x90909090,0x90909090\n" );
if (name) output( "%s_%s:\n", asm_name("__wine_spec_imp"), name );
else output( "%s_%u:\n", asm_name("__wine_spec_imp"), i );
output_cfi( ".cfi_startproc" );
switch (target.cpu)
{
case CPU_i386:
output( "\t.byte 0x8b,0xff,0x55,0x8b,0xec,0x5d\n" ); /* hotpatch prolog */
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tjmp *__imp_%s-1b(%%eax)\n", asm_name( get_link_name( odp )));
needs_get_pc_thunk = 1;
}
else output( "\tjmp *__imp_%s\n", asm_name( get_link_name( odp )));
break;
case CPU_x86_64:
output( "\t.byte 0x48,0x8d,0xa4,0x24,0x00,0x00,0x00,0x00\n" ); /* hotpatch prolog */
output( "\tjmp *__imp_%s(%%rip)\n", asm_name( get_link_name( odp )));
break;
default:
assert(0);
}
output_cfi( ".cfi_endproc" );
}
}
/*******************************************************************
* output_module
*
* Output the module data.
*/
void output_module( DLLSPEC *spec )
{
int machine = 0;
int i;
unsigned int page_size = get_page_size();
const char *data_dirs[16] = { NULL };
/* Reserve some space for the PE header */
switch (target.platform)
{
case PLATFORM_MINGW:
case PLATFORM_WINDOWS:
return; /* nothing to do */
case PLATFORM_APPLE:
output( "\t.text\n" );
output( "\t.align %d\n", get_alignment(page_size) );
output( "__wine_spec_pe_header:\n" );
output( "\t.space 65536\n" );
break;
case PLATFORM_SOLARIS:
output( "\n\t.section \".text\",\"ax\"\n" );
output( "__wine_spec_pe_header:\n" );
output( "\t.skip %u\n", 65536 + page_size );
break;
default:
switch (target.cpu)
{
case CPU_i386:
case CPU_x86_64:
output( "\n\t.section \".init\",\"ax\"\n" );
output( "\tjmp 1f\n" );
break;
case CPU_ARM:
output( "\n\t.section \".text\",\"ax\"\n" );
output( "\tb 1f\n" );
break;
case CPU_ARM64:
output( "\n\t.section \".init\",\"ax\"\n" );
output( "\tb 1f\n" );
break;
}
output( "__wine_spec_pe_header:\n" );
output( "\t.skip %u\n", 65536 + page_size );
output( "1:\n" );
break;
}
/* Output the NT header */
output( "\n\t.data\n" );
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( "\t.globl %s\n", asm_name("__wine_spec_nt_header") );
output( "%s:\n", asm_name("__wine_spec_nt_header") );
output( ".L__wine_spec_rva_base:\n" );
output( "\t.long 0x4550\n" ); /* Signature */
switch (target.cpu)
{
case CPU_i386: machine = IMAGE_FILE_MACHINE_I386; break;
case CPU_x86_64: machine = IMAGE_FILE_MACHINE_AMD64; break;
case CPU_ARM: machine = IMAGE_FILE_MACHINE_ARMNT; break;
case CPU_ARM64: machine = IMAGE_FILE_MACHINE_ARM64; break;
}
output( "\t.short 0x%04x\n", /* Machine */
machine );
output( "\t.short 0\n" ); /* NumberOfSections */
output( "\t.long %u\n", hash_filename(spec->file_name) ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* PointerToSymbolTable */
output( "\t.long 0\n" ); /* NumberOfSymbols */
output( "\t.short %d\n", /* SizeOfOptionalHeader */
get_ptr_size() == 8 ? IMAGE_SIZEOF_NT_OPTIONAL64_HEADER : IMAGE_SIZEOF_NT_OPTIONAL32_HEADER );
output( "\t.short 0x%04x\n", /* Characteristics */
spec->characteristics );
output( "\t.short 0x%04x\n", /* Magic */
get_ptr_size() == 8 ? IMAGE_NT_OPTIONAL_HDR64_MAGIC : IMAGE_NT_OPTIONAL_HDR32_MAGIC );
output( "\t.byte 7\n" ); /* MajorLinkerVersion */
output( "\t.byte 10\n" ); /* MinorLinkerVersion */
output( "\t.long 0\n" ); /* SizeOfCode */
output( "\t.long 0\n" ); /* SizeOfInitializedData */
output( "\t.long 0\n" ); /* SizeOfUninitializedData */
for (i = 0; i < spec_extra_ld_symbols.count; i++)
output( "\t.globl %s\n", asm_name(spec_extra_ld_symbols.str[i]) );
/* note: we expand the AddressOfEntryPoint field on 64-bit by overwriting the BaseOfCode field */
output( "\t%s %s\n", /* AddressOfEntryPoint */
get_asm_ptr_keyword(), spec->init_func ? asm_name(spec->init_func) : "0" );
if (get_ptr_size() == 4)
{
output( "\t.long 0\n" ); /* BaseOfCode */
output( "\t.long 0\n" ); /* BaseOfData */
}
output( "\t%s __wine_spec_pe_header\n", /* ImageBase */
get_asm_ptr_keyword() );
output( "\t.long %u\n", page_size ); /* SectionAlignment */
output( "\t.long %u\n", page_size ); /* FileAlignment */
output( "\t.short 1,0\n" ); /* Major/MinorOperatingSystemVersion */
output( "\t.short 0,0\n" ); /* Major/MinorImageVersion */
output( "\t.short %u,%u\n", /* Major/MinorSubsystemVersion */
spec->subsystem_major, spec->subsystem_minor );
output( "\t.long 0\n" ); /* Win32VersionValue */
output_rva( "%s", asm_name("_end") ); /* SizeOfImage */
output( "\t.long %u\n", page_size ); /* SizeOfHeaders */
output( "\t.long 0\n" ); /* CheckSum */
output( "\t.short 0x%04x\n", /* Subsystem */
spec->subsystem );
output( "\t.short 0x%04x\n", /* DllCharacteristics */
spec->dll_characteristics );
output( "\t%s %u,%u\n", /* SizeOfStackReserve/Commit */
get_asm_ptr_keyword(), (spec->stack_size ? spec->stack_size : 1024) * 1024, page_size );
output( "\t%s %u,%u\n", /* SizeOfHeapReserve/Commit */
get_asm_ptr_keyword(), (spec->heap_size ? spec->heap_size : 1024) * 1024, page_size );
output( "\t.long 0\n" ); /* LoaderFlags */
output( "\t.long 16\n" ); /* NumberOfRvaAndSizes */
if (get_exports_count( spec ))
data_dirs[0] = ".L__wine_spec_exports"; /* DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT] */
if (has_imports())
data_dirs[1] = ".L__wine_spec_imports"; /* DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT] */
if (spec->nb_resources)
data_dirs[2] = ".L__wine_spec_resources"; /* DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE] */
if (has_delay_imports())
data_dirs[13] = ".L__wine_spec_delay_imports"; /* DataDirectory[IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT] */
output_data_directories( data_dirs );
if (target.platform == PLATFORM_APPLE)
output( "\t.lcomm %s,4\n", asm_name("_end") );
}
/*******************************************************************
* output_spec32_file
*
* Build a Win32 C file from a spec file.
*/
void output_spec32_file( DLLSPEC *spec )
{
needs_get_pc_thunk = 0;
open_output_file();
output_standard_file_header();
output_module( spec );
output_stubs( spec );
output_exports( spec );
output_imports( spec );
output_syscalls( spec );
if (needs_get_pc_thunk) output_get_pc_thunk();
output_resources( spec );
output_gnu_stack_note();
close_output_file();
}
struct sec_data
{
char name[8];
const void *ptr;
unsigned int size;
unsigned int flags;
unsigned int file_size;
unsigned int virt_size;
unsigned int filepos;
unsigned int rva;
};
struct dir_data
{
unsigned int rva;
unsigned int size;
};
struct exp_data
{
unsigned int rva;
const char *name;
};
static struct
{
unsigned int section_align;
unsigned int file_align;
unsigned int sec_count;
unsigned int exp_count;
struct dir_data dir[16];
struct sec_data sec[8];
struct exp_data exp[8];
} pe;
static void set_dir( unsigned int idx, unsigned int rva, unsigned int size )
{
pe.dir[idx].rva = rva;
pe.dir[idx].size = size;
}
static void add_export( unsigned int rva, const char *name )
{
pe.exp[pe.exp_count].rva = rva;
pe.exp[pe.exp_count].name = name;
pe.exp_count++;
}
static unsigned int current_rva(void)
{
if (!pe.sec_count) return pe.section_align;
return pe.sec[pe.sec_count - 1].rva + pe.sec[pe.sec_count - 1].virt_size;
}
static unsigned int current_filepos(void)
{
if (!pe.sec_count) return pe.file_align;
return pe.sec[pe.sec_count - 1].filepos + pe.sec[pe.sec_count - 1].file_size;
}
static unsigned int flush_output_to_section( const char *name, int dir_idx, unsigned int flags )
{
struct sec_data *sec = &pe.sec[pe.sec_count];
if (!output_buffer_pos) return 0;
strncpy( sec->name, name, sizeof(sec->name) );
sec->ptr = output_buffer;
sec->size = output_buffer_pos;
sec->flags = flags;
sec->rva = current_rva();
sec->filepos = current_filepos();
sec->file_size = (sec->size + pe.file_align - 1) & ~(pe.file_align - 1);
sec->virt_size = (sec->size + pe.section_align - 1) & ~(pe.section_align - 1);
if (dir_idx >= 0) set_dir( dir_idx, sec->rva, sec->size );
init_output_buffer();
pe.sec_count++;
return sec->size;
}
static void output_pe_exports( DLLSPEC *spec )
{
unsigned int i, exp_count = get_exports_count( spec );
unsigned int exp_rva = current_rva() + 40; /* sizeof(IMAGE_EXPORT_DIRECTORY) */
unsigned int pos, str_rva = exp_rva + 4 * exp_count + 6 * spec->nb_names;
if (!spec->nb_entry_points) return;
init_output_buffer();
put_dword( 0 ); /* Characteristics */
put_dword( hash_filename(spec->file_name) ); /* TimeDateStamp */
put_word( 0 ); /* MajorVersion */
put_word( 0 ); /* MinorVersion */
put_dword( str_rva ); /* Name */
put_dword( spec->base ); /* Base */
put_dword( exp_count ); /* NumberOfFunctions */
put_dword( spec->nb_names ); /* NumberOfNames */
put_dword( exp_rva ); /* AddressOfFunctions */
if (spec->nb_names)
{
put_dword( exp_rva + 4 * exp_count ); /* AddressOfNames */
put_dword( exp_rva + 4 * exp_count + 4 * spec->nb_names ); /* AddressOfNameOrdinals */
}
else
{
put_dword( 0 ); /* AddressOfNames */
put_dword( 0 ); /* AddressOfNameOrdinals */
}
/* functions */
for (i = 0, pos = str_rva + strlen(spec->file_name) + 1; i < spec->nb_names; i++)
pos += strlen( spec->names[i]->name ) + 1;
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (odp && (odp->flags & FLAG_FORWARD))
{
put_dword( pos );
pos += strlen(odp->link_name) + 1;
}
else put_dword( 0 );
}
/* names */
for (i = 0, pos = str_rva + strlen(spec->file_name) + 1; i < spec->nb_names; i++)
{
put_dword( pos );
pos += strlen(spec->names[i]->name) + 1;
}
/* ordinals */
for (i = 0; i < spec->nb_names; i++) put_word( spec->names[i]->ordinal - spec->base );
/* strings */
put_data( spec->file_name, strlen(spec->file_name) + 1 );
for (i = 0; i < spec->nb_names; i++)
put_data( spec->names[i]->name, strlen(spec->names[i]->name) + 1 );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (odp && (odp->flags & FLAG_FORWARD)) put_data( odp->link_name, strlen(odp->link_name) + 1 );
}
flush_output_to_section( ".edata", 0 /* IMAGE_DIRECTORY_ENTRY_EXPORT */,
0x40000040 /* CNT_INITIALIZED_DATA|MEM_READ */ );
}
/* apiset hash table */
struct apiset_hash_entry
{
unsigned int hash;
unsigned int index;
};
static int apiset_hash_cmp( const void *h1, const void *h2 )
{
const struct apiset_hash_entry *entry1 = h1;
const struct apiset_hash_entry *entry2 = h2;
if (entry1->hash > entry2->hash) return 1;
if (entry1->hash < entry2->hash) return -1;
return 0;
}
static void output_apiset_section( const struct apiset *apiset )
{
struct apiset_hash_entry *hash;
struct apiset_entry *e;
unsigned int i, j, str_pos, value_pos, hash_pos, size;
init_output_buffer();
value_pos = 0x1c /* header */ + apiset->count * 0x18; /* names */
str_pos = value_pos;
for (i = 0, e = apiset->entries; i < apiset->count; i++, e++)
str_pos += 0x14 * max( 1, e->val_count ); /* values */
hash_pos = str_pos + ((apiset->str_pos * 2 + 3) & ~3);
size = hash_pos + apiset->count * 8; /* hashes */
/* header */
put_dword( 6 ); /* Version */
put_dword( size ); /* Size */
put_dword( 0 ); /* Flags */
put_dword( apiset->count ); /* Count */
put_dword( 0x1c ); /* EntryOffset */
put_dword( hash_pos ); /* HashOffset */
put_dword( apiset_hash_factor ); /* HashFactor */
/* name entries */
value_pos = 0x1c /* header */ + apiset->count * 0x18; /* names */
for (i = 0, e = apiset->entries; i < apiset->count; i++, e++)
{
put_dword( 1 ); /* Flags */
put_dword( str_pos + e->name_off * 2 ); /* NameOffset */
put_dword( e->name_len * 2 ); /* NameLength */
put_dword( e->hash_len * 2 ); /* HashedLength */
put_dword( value_pos ); /* ValueOffset */
put_dword( max( 1, e->val_count )); /* ValueCount */
value_pos += 0x14 * max( 1, e->val_count );
}
/* values */
for (i = 0, e = apiset->entries; i < apiset->count; i++, e++)
{
if (!e->val_count)
{
put_dword( 0 ); /* Flags */
put_dword( 0 ); /* NameOffset */
put_dword( 0 ); /* NameLength */
put_dword( 0 ); /* ValueOffset */
put_dword( 0 ); /* ValueLength */
}
else for (j = 0; j < e->val_count; j++)
{
put_dword( 0 ); /* Flags */
if (e->values[j].name_off)
{
put_dword( str_pos + e->values[j].name_off * 2 ); /* NameOffset */
put_dword( e->values[j].name_len * 2 ); /* NameLength */
}
else
{
put_dword( 0 ); /* NameOffset */
put_dword( 0 ); /* NameLength */
}
put_dword( str_pos + e->values[j].val_off * 2 ); /* ValueOffset */
put_dword( e->values[j].val_len * 2 ); /* ValueLength */
}
}
/* strings */
for (i = 0; i < apiset->str_pos; i++) put_word( apiset->strings[i] );
align_output( 4 );
/* hash table */
hash = xmalloc( apiset->count * sizeof(*hash) );
for (i = 0, e = apiset->entries; i < apiset->count; i++, e++)
{
hash[i].hash = e->hash;
hash[i].index = i;
}
qsort( hash, apiset->count, sizeof(*hash), apiset_hash_cmp );
for (i = 0; i < apiset->count; i++)
{
put_dword( hash[i].hash );
put_dword( hash[i].index );
}
free( hash );
flush_output_to_section( ".apiset", -1, 0x40000040 /* CNT_INITIALIZED_DATA|MEM_READ */ );
}
static void output_pe_file( DLLSPEC *spec, const char signature[32] )
{
const unsigned int lfanew = 0x40 + 32;
unsigned int i, code_size = 0, data_size = 0;
init_output_buffer();
for (i = 0; i < pe.sec_count; i++)
if (pe.sec[i].flags & 0x20) /* CNT_CODE */
code_size += pe.sec[i].file_size;
/* .rsrc section */
if (spec->type == SPEC_WIN32)
{
output_bin_resources( spec, current_rva() );
flush_output_to_section( ".rsrc", 2 /* IMAGE_DIRECTORY_ENTRY_RESOURCE */,
0x40000040 /* CNT_INITIALIZED_DATA|MEM_READ */ );
}
/* .reloc section */
if (code_size)
{
put_dword( 0 ); /* VirtualAddress */
put_dword( 0 ); /* Size */
flush_output_to_section( ".reloc", 5 /* IMAGE_DIRECTORY_ENTRY_BASERELOC */,
0x42000040 /* CNT_INITIALIZED_DATA|MEM_DISCARDABLE|MEM_READ */ );
}
for (i = 0; i < pe.sec_count; i++)
if ((pe.sec[i].flags & 0x60) == 0x40) /* CNT_INITIALIZED_DATA */
data_size += pe.sec[i].file_size;
put_word( 0x5a4d ); /* e_magic */
put_word( 0x40 ); /* e_cblp */
put_word( 0x01 ); /* e_cp */
put_word( 0 ); /* e_crlc */
put_word( lfanew / 16 ); /* e_cparhdr */
put_word( 0x0000 ); /* e_minalloc */
put_word( 0xffff ); /* e_maxalloc */
put_word( 0x0000 ); /* e_ss */
put_word( 0x00b8 ); /* e_sp */
put_word( 0 ); /* e_csum */
put_word( 0 ); /* e_ip */
put_word( 0 ); /* e_cs */
put_word( lfanew ); /* e_lfarlc */
put_word( 0 ); /* e_ovno */
put_dword( 0 ); /* e_res */
put_dword( 0 );
put_word( 0 ); /* e_oemid */
put_word( 0 ); /* e_oeminfo */
put_dword( 0 ); /* e_res2 */
put_dword( 0 );
put_dword( 0 );
put_dword( 0 );
put_dword( 0 );
put_dword( lfanew );
put_data( signature, 32 );
put_dword( 0x4550 ); /* Signature */
switch (target.cpu)
{
case CPU_i386: put_word( IMAGE_FILE_MACHINE_I386 ); break;
case CPU_x86_64: put_word( IMAGE_FILE_MACHINE_AMD64 ); break;
case CPU_ARM: put_word( IMAGE_FILE_MACHINE_ARMNT ); break;
case CPU_ARM64: put_word( IMAGE_FILE_MACHINE_ARM64 ); break;
}
put_word( pe.sec_count ); /* NumberOfSections */
put_dword( hash_filename(spec->file_name) ); /* TimeDateStamp */
put_dword( 0 ); /* PointerToSymbolTable */
put_dword( 0 ); /* NumberOfSymbols */
put_word( get_ptr_size() == 8 ?
IMAGE_SIZEOF_NT_OPTIONAL64_HEADER :
IMAGE_SIZEOF_NT_OPTIONAL32_HEADER ); /* SizeOfOptionalHeader */
put_word( spec->characteristics ); /* Characteristics */
put_word( get_ptr_size() == 8 ?
IMAGE_NT_OPTIONAL_HDR64_MAGIC :
IMAGE_NT_OPTIONAL_HDR32_MAGIC ); /* Magic */
put_byte( 7 ); /* MajorLinkerVersion */
put_byte( 10 ); /* MinorLinkerVersion */
put_dword( code_size ); /* SizeOfCode */
put_dword( data_size ); /* SizeOfInitializedData */
put_dword( 0 ); /* SizeOfUninitializedData */
put_dword( code_size ? pe.sec[0].rva : 0 ); /* AddressOfEntryPoint */
put_dword( code_size ? pe.sec[0].rva : 0 ); /* BaseOfCode */
if (get_ptr_size() == 4)
{
put_dword( 0 ); /* BaseOfData */
put_dword( 0x10000000 ); /* ImageBase */
}
else
{
put_dword( 0x80000000 ); /* ImageBase */
put_dword( 0x00000001 );
}
put_dword( pe.section_align ); /* SectionAlignment */
put_dword( pe.file_align ); /* FileAlignment */
put_word( 1 ); /* MajorOperatingSystemVersion */
put_word( 0 ); /* MinorOperatingSystemVersion */
put_word( 0 ); /* MajorImageVersion */
put_word( 0 ); /* MinorImageVersion */
put_word( spec->subsystem_major ); /* MajorSubsystemVersion */
put_word( spec->subsystem_minor ); /* MinorSubsystemVersion */
put_dword( 0 ); /* Win32VersionValue */
put_dword( current_rva() ); /* SizeOfImage */
put_dword( pe.file_align ); /* SizeOfHeaders */
put_dword( 0 ); /* CheckSum */
put_word( spec->subsystem ); /* Subsystem */
put_word( spec->dll_characteristics ); /* DllCharacteristics */
put_pword( (spec->stack_size ? spec->stack_size : 1024) * 1024 ); /* SizeOfStackReserve */
put_pword( pe.section_align ); /* SizeOfStackCommit */
put_pword( (spec->heap_size ? spec->heap_size : 1024) * 1024 ); /* SizeOfHeapReserve */
put_pword( pe.section_align ); /* SizeOfHeapCommit */
put_dword( 0 ); /* LoaderFlags */
put_dword( 16 ); /* NumberOfRvaAndSizes */
/* image directories */
for (i = 0; i < 16; i++)
{
put_dword( pe.dir[i].rva ); /* VirtualAddress */
put_dword( pe.dir[i].size ); /* Size */
}
/* sections */
for (i = 0; i < pe.sec_count; i++)
{
put_data( pe.sec[i].name, 8 ); /* Name */
put_dword( pe.sec[i].size ); /* VirtualSize */
put_dword( pe.sec[i].rva ); /* VirtualAddress */
put_dword( pe.sec[i].file_size ); /* SizeOfRawData */
put_dword( pe.sec[i].filepos ); /* PointerToRawData */
put_dword( 0 ); /* PointerToRelocations */
put_dword( 0 ); /* PointerToLinenumbers */
put_word( 0 ); /* NumberOfRelocations */
put_word( 0 ); /* NumberOfLinenumbers */
put_dword( pe.sec[i].flags ); /* Characteristics */
}
align_output( pe.file_align );
/* section data */
for (i = 0; i < pe.sec_count; i++)
{
put_data( pe.sec[i].ptr, pe.sec[i].size );
align_output( pe.file_align );
}
flush_output_buffer( output_file_name ? output_file_name : spec->file_name );
}
/*******************************************************************
* output_fake_module
*
* Build a fake binary module from a spec file.
*/
void output_fake_module( DLLSPEC *spec )
{
static const unsigned char dll_code_section[] = { 0x31, 0xc0, /* xor %eax,%eax */
0xc2, 0x0c, 0x00 }; /* ret $12 */
static const unsigned char exe_code_section[] = { 0xb8, 0x01, 0x00, 0x00, 0x00, /* movl $1,%eax */
0xc2, 0x04, 0x00 }; /* ret $4 */
unsigned int i;
resolve_imports( spec );
pe.section_align = get_page_size();
pe.file_align = 0x200;
init_output_buffer();
/* .text section */
if (spec->characteristics & IMAGE_FILE_DLL) put_data( dll_code_section, sizeof(dll_code_section) );
else put_data( exe_code_section, sizeof(exe_code_section) );
flush_output_to_section( ".text", -1, 0x60000020 /* CNT_CODE|MEM_EXECUTE|MEM_READ */ );
if (spec->type == SPEC_WIN16)
{
add_export( current_rva(), "__wine_spec_dos_header" );
/* .rdata section */
output_fake_module16( spec );
if (spec->main_module)
{
add_export( current_rva() + output_buffer_pos, "__wine_spec_main_module" );
put_data( spec->main_module, strlen(spec->main_module) + 1 );
}
flush_output_to_section( ".rdata", -1, 0x40000040 /* CNT_INITIALIZED_DATA|MEM_READ */ );
}
/* .edata section */
if (pe.exp_count)
{
unsigned int exp_rva = current_rva() + 40; /* sizeof(IMAGE_EXPORT_DIRECTORY) */
unsigned int pos, str_rva = exp_rva + 10 * pe.exp_count;
put_dword( 0 ); /* Characteristics */
put_dword( hash_filename(spec->file_name) ); /* TimeDateStamp */
put_word( 0 ); /* MajorVersion */
put_word( 0 ); /* MinorVersion */
put_dword( str_rva ); /* Name */
put_dword( 1 ); /* Base */
put_dword( pe.exp_count ); /* NumberOfFunctions */
put_dword( pe.exp_count ); /* NumberOfNames */
put_dword( exp_rva ); /* AddressOfFunctions */
put_dword( exp_rva + 4 * pe.exp_count ); /* AddressOfNames */
put_dword( exp_rva + 8 * pe.exp_count ); /* AddressOfNameOrdinals */
/* functions */
for (i = 0; i < pe.exp_count; i++) put_dword( pe.exp[i].rva );
/* names */
for (i = 0, pos = str_rva + strlen(spec->file_name) + 1; i < pe.exp_count; i++)
{
put_dword( pos );
pos += strlen( pe.exp[i].name ) + 1;
}
/* ordinals */
for (i = 0; i < pe.exp_count; i++) put_word( i );
/* strings */
put_data( spec->file_name, strlen(spec->file_name) + 1 );
for (i = 0; i < pe.exp_count; i++) put_data( pe.exp[i].name, strlen(pe.exp[i].name) + 1 );
flush_output_to_section( ".edata", 0 /* IMAGE_DIRECTORY_ENTRY_EXPORT */,
0x40000040 /* CNT_INITIALIZED_DATA|MEM_READ */ );
}
output_pe_file( spec, fakedll_signature );
}
/*******************************************************************
* output_data_module
*
* Build a data-only module from a spec file.
*/
void output_data_module( DLLSPEC *spec )
{
pe.section_align = pe.file_align = get_page_size();
output_pe_exports( spec );
if (spec->apiset.count) output_apiset_section( &spec->apiset );
output_pe_file( spec, builtin_signature );
}
/*******************************************************************
* output_def_file
*
* Build a Win32 def file from a spec file.
*/
void output_def_file( DLLSPEC *spec, int import_only )
{
DLLSPEC *spec32 = NULL;
const char *name;
int i, total;
if (spec->type == SPEC_WIN16)
{
spec32 = alloc_dll_spec();
add_16bit_exports( spec32, spec );
spec = spec32;
}
if (spec_file_name)
output( "; File generated automatically from %s; do not edit!\n\n",
spec_file_name );
else
output( "; File generated automatically; do not edit!\n\n" );
output( "LIBRARY %s\n\n", spec->file_name);
output( "EXPORTS\n");
/* Output the exports and relay entry points */
for (i = total = 0; i < spec->nb_entry_points; i++)
{
const ORDDEF *odp = &spec->entry_points[i];
int is_data = 0, is_private = odp->flags & FLAG_PRIVATE;
if (odp->name) name = odp->name;
else if (odp->export_name) name = odp->export_name;
else continue;
if (!is_private) total++;
if (import_only && odp->type == TYPE_STUB) continue;
if ((odp->flags & FLAG_FASTCALL) && is_pe())
name = strmake( "@%s", name );
output( " %s", name );
switch(odp->type)
{
case TYPE_EXTERN:
is_data = 1;
/* fall through */
case TYPE_VARARGS:
case TYPE_CDECL:
/* try to reduce output */
if(!import_only && (strcmp(name, odp->link_name) || (odp->flags & FLAG_FORWARD)))
output( "=%s", odp->link_name );
break;
case TYPE_STDCALL:
{
int at_param = get_args_size( odp );
if (!kill_at && target.cpu == CPU_i386) output( "@%d", at_param );
if (import_only) break;
if (odp->flags & FLAG_FORWARD)
output( "=%s", odp->link_name );
else if (strcmp(name, odp->link_name)) /* try to reduce output */
output( "=%s", get_link_name( odp ));
break;
}
case TYPE_STUB:
if (!kill_at && target.cpu == CPU_i386) output( "@%d", get_args_size( odp ));
is_private = 1;
break;
default:
assert(0);
}
output( " @%d", odp->ordinal );
if (!odp->name || (odp->flags & FLAG_ORDINAL)) output( " NONAME" );
if (is_data) output( " DATA" );
if (is_private) output( " PRIVATE" );
output( "\n" );
}
if (!total) warning( "%s: Import library doesn't export anything\n", spec->file_name );
if (spec32) free_dll_spec( spec32 );
}
/*******************************************************************
* make_builtin_files
*/
void make_builtin_files( struct strarray files )
{
int i, fd;
struct
{
unsigned short e_magic;
unsigned short unused[29];
unsigned int e_lfanew;
} header;
for (i = 0; i < files.count; i++)
{
if ((fd = open( files.str[i], O_RDWR | O_BINARY )) == -1)
fatal_perror( "Cannot open %s", files.str[i] );
if (read( fd, &header, sizeof(header) ) == sizeof(header) && !memcmp( &header.e_magic, "MZ", 2 ))
{
if (header.e_lfanew < sizeof(header) + sizeof(builtin_signature))
fatal_error( "%s: Not enough space (%x) for Wine signature\n", files.str[i], header.e_lfanew );
write( fd, builtin_signature, sizeof(builtin_signature) );
if (prefer_native)
{
unsigned int pos = header.e_lfanew + 0x5e; /* OptionalHeader.DllCharacteristics */
unsigned short dll_charact;
lseek( fd, pos, SEEK_SET );
if (read( fd, &dll_charact, sizeof(dll_charact) ) == sizeof(dll_charact))
{
dll_charact |= IMAGE_DLLCHARACTERISTICS_PREFER_NATIVE;
lseek( fd, pos, SEEK_SET );
write( fd, &dll_charact, sizeof(dll_charact) );
}
}
}
else fatal_error( "%s: Unrecognized file format\n", files.str[i] );
close( fd );
}
}
static void fixup_elf32( const char *name, int fd, void *header, size_t header_size )
{
struct
{
unsigned char e_ident[16];
unsigned short e_type;
unsigned short e_machine;
unsigned int e_version;
unsigned int e_entry;
unsigned int e_phoff;
unsigned int e_shoff;
unsigned int e_flags;
unsigned short e_ehsize;
unsigned short e_phentsize;
unsigned short e_phnum;
unsigned short e_shentsize;
unsigned short e_shnum;
unsigned short e_shstrndx;
} *elf = header;
struct
{
unsigned int p_type;
unsigned int p_offset;
unsigned int p_vaddr;
unsigned int p_paddr;
unsigned int p_filesz;
unsigned int p_memsz;
unsigned int p_flags;
unsigned int p_align;
} *phdr;
struct
{
unsigned int d_tag;
unsigned int d_val;
} *dyn;
unsigned int i, size;
if (header_size < sizeof(*elf)) return;
if (elf->e_ident[6] != 1 /* EV_CURRENT */) return;
size = elf->e_phnum * elf->e_phentsize;
phdr = xmalloc( size );
lseek( fd, elf->e_phoff, SEEK_SET );
if (read( fd, phdr, size ) != size) return;
for (i = 0; i < elf->e_phnum; i++)
{
if (phdr->p_type == 2 /* PT_DYNAMIC */ ) break;
phdr = (void *)((char *)phdr + elf->e_phentsize);
}
if (i == elf->e_phnum) return;
dyn = xmalloc( phdr->p_filesz );
lseek( fd, phdr->p_offset, SEEK_SET );
if (read( fd, dyn, phdr->p_filesz ) != phdr->p_filesz) return;
for (i = 0; i < phdr->p_filesz / sizeof(*dyn) && dyn[i].d_tag; i++)
{
switch (dyn[i].d_tag)
{
case 25: dyn[i].d_tag = 0x60009994; break; /* DT_INIT_ARRAY */
case 27: dyn[i].d_tag = 0x60009995; break; /* DT_INIT_ARRAYSZ */
case 12: dyn[i].d_tag = 0x60009996; break; /* DT_INIT */
}
}
lseek( fd, phdr->p_offset, SEEK_SET );
write( fd, dyn, phdr->p_filesz );
}
static void fixup_elf64( const char *name, int fd, void *header, size_t header_size )
{
struct
{
unsigned char e_ident[16];
unsigned short e_type;
unsigned short e_machine;
unsigned int e_version;
unsigned __int64 e_entry;
unsigned __int64 e_phoff;
unsigned __int64 e_shoff;
unsigned int e_flags;
unsigned short e_ehsize;
unsigned short e_phentsize;
unsigned short e_phnum;
unsigned short e_shentsize;
unsigned short e_shnum;
unsigned short e_shstrndx;
} *elf = header;
struct
{
unsigned int p_type;
unsigned int p_flags;
unsigned __int64 p_offset;
unsigned __int64 p_vaddr;
unsigned __int64 p_paddr;
unsigned __int64 p_filesz;
unsigned __int64 p_memsz;
unsigned __int64 p_align;
} *phdr;
struct
{
unsigned __int64 d_tag;
unsigned __int64 d_val;
} *dyn;
unsigned int i, size;
if (header_size < sizeof(*elf)) return;
if (elf->e_ident[6] != 1 /* EV_CURRENT */) return;
size = elf->e_phnum * elf->e_phentsize;
phdr = xmalloc( size );
lseek( fd, elf->e_phoff, SEEK_SET );
if (read( fd, phdr, size ) != size) return;
for (i = 0; i < elf->e_phnum; i++)
{
if (phdr->p_type == 2 /* PT_DYNAMIC */ ) break;
phdr = (void *)((char *)phdr + elf->e_phentsize);
}
if (i == elf->e_phnum) return;
dyn = xmalloc( phdr->p_filesz );
lseek( fd, phdr->p_offset, SEEK_SET );
if (read( fd, dyn, phdr->p_filesz ) != phdr->p_filesz) return;
for (i = 0; i < phdr->p_filesz / sizeof(*dyn) && dyn[i].d_tag; i++)
{
switch (dyn[i].d_tag)
{
case 25: dyn[i].d_tag = 0x60009994; break; /* DT_INIT_ARRAY */
case 27: dyn[i].d_tag = 0x60009995; break; /* DT_INIT_ARRAYSZ */
case 12: dyn[i].d_tag = 0x60009996; break; /* DT_INIT */
}
}
lseek( fd, phdr->p_offset, SEEK_SET );
write( fd, dyn, phdr->p_filesz );
}
/*******************************************************************
* fixup_constructors
*/
void fixup_constructors( struct strarray files )
{
int i, fd, size;
unsigned int header[64];
for (i = 0; i < files.count; i++)
{
if ((fd = open( files.str[i], O_RDWR | O_BINARY )) == -1)
fatal_perror( "Cannot open %s", files.str[i] );
size = read( fd, &header, sizeof(header) );
if (size > 5)
{
if (!memcmp( header, "\177ELF\001", 5 )) fixup_elf32( files.str[i], fd, header, size );
else if (!memcmp( header, "\177ELF\002", 5 )) fixup_elf64( files.str[i], fd, header, size );
}
close( fd );
}
}
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