/*******************************************************************
* BuildPendingEventCheck
*
* Build a function that checks whether there are any
* pending DPMI events.
*
* Stack layout:
*
* (sp+12) long eflags
* (sp+6) long cs
* (sp+2) long ip
* (sp) word fs
*
* On entry to function, fs register points to a valid TEB.
* On exit from function, stack will be popped.
*/
static void BuildPendingEventCheck(void)
{
/* Function header */
function_header( "DPMI_PendingEventCheck" );
/* Check for pending events. */
output( "\t.byte 0x64\n\ttestl $0xffffffff,(%d)\n",
STRUCTOFFSET(TEB,GdiTebBatch) + STRUCTOFFSET(WINE_VM86_TEB_INFO,vm86_pending) );
output( "\tje %s\n", asm_name("DPMI_PendingEventCheck_Cleanup") );
output( "\t.byte 0x64\n\ttestl $0xffffffff,(%d)\n",
STRUCTOFFSET(TEB,GdiTebBatch) + STRUCTOFFSET(WINE_VM86_TEB_INFO,dpmi_vif) );
output( "\tje %s\n", asm_name("DPMI_PendingEventCheck_Cleanup") );
/* Process pending events. */
output( "\tsti\n" );
/* Start cleanup. Restore fs register. */
output( "%s\n", asm_globl("DPMI_PendingEventCheck_Cleanup") );
output( "\tpopw %%fs\n" );
/* Return from function. */
output( "%s\n", asm_globl("DPMI_PendingEventCheck_Return") );
output( "\tiret\n" );
output_function_size( "DPMI_PendingEventCheck" );
}
/*******************************************************************
* output_asm_constructor
*
* Output code for calling a dll constructor.
*/
static void output_asm_constructor( const char *constructor )
{
if (target_platform == PLATFORM_APPLE)
{
/* Mach-O doesn't have an init section */
output( "\n\t.mod_init_func\n" );
output( "\t.align %d\n", get_alignment(4) );
output( "\t.long %s\n", asm_name(constructor) );
}
else
{
output( "\n\t.section \".init\",\"ax\"\n" );
switch(target_cpu)
{
case CPU_x86:
case CPU_x86_64:
output( "\tcall %s\n", asm_name(constructor) );
break;
case CPU_SPARC:
output( "\tcall %s\n", asm_name(constructor) );
output( "\tnop\n" );
break;
case CPU_ARM:
case CPU_POWERPC:
output( "\tbl %s\n", asm_name(constructor) );
break;
}
}
}
/*******************************************************************
* output_asm_constructor
*
* Output code for calling a dll constructor.
*/
static void output_asm_constructor( const char *constructor )
{
if (target_platform == PLATFORM_APPLE)
{
/* Mach-O doesn't have an init section */
output( "\n\t.mod_init_func\n" );
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name(constructor) );
}
else
{
switch(target_cpu)
{
case CPU_x86:
case CPU_x86_64:
// output( "\n\t.section \".init\",\"ax\"\n" );
output( "\n\t.section .init,\"ax\"\n" );
output( "\tcall %s\n", asm_name(constructor) );
break;
case CPU_ARM:
output( "\n\t.section \".text\",\"ax\"\n" );
output( "\tblx %s\n", asm_name(constructor) );
break;
case CPU_ARM64:
case CPU_POWERPC:
output( "\n\t.section \".init\",\"ax\"\n" );
output( "\tbl %s\n", asm_name(constructor) );
break;
}
}
}
/* output import stubs for exported entry points that link to external symbols */
static void output_external_link_imports( DLLSPEC *spec )
{
unsigned int i, pos;
if (!ext_link_imports.count) return; /* nothing to do */
sort_names( &ext_link_imports );
/* get rid of duplicate names */
for (i = 1; i < ext_link_imports.count; i++)
{
if (!strcmp( ext_link_imports.names[i-1], ext_link_imports.names[i] ))
remove_name( &ext_link_imports, i-- );
}
output( "\n/* external link thunks */\n\n" );
output( "\t.data\n" );
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( ".L__wine_spec_external_links:\n" );
for (i = 0; i < ext_link_imports.count; i++)
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name(ext_link_imports.names[i]) );
output( "\n\t.text\n" );
output( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( "%s:\n", asm_name("__wine_spec_external_link_thunks") );
for (i = pos = 0; i < ext_link_imports.count; i++)
{
char *buffer = strmake( "__wine_spec_ext_link_%s", ext_link_imports.names[i] );
output_import_thunk( buffer, ".L__wine_spec_external_links", pos );
free( buffer );
pos += get_ptr_size();
}
output_function_size( "__wine_spec_external_link_thunks" );
}
/*******************************************************************
* BuildRet16Func
*
* Build the return code for 16-bit callbacks
*/
static void BuildRet16Func(void)
{
function_header( "__wine_call_to_16_ret" );
/* Save %esp into %esi */
output( "\tmovl %%esp,%%esi\n" );
/* Restore 32-bit segment registers */
output( "\t.byte 0x2e\n\tmovl %s", asm_name("CallTo16_DataSelector") );
output( "-%s,%%edi\n", asm_name("__wine_call16_start") );
output( "\tmovw %%di,%%ds\n" );
output( "\tmovw %%di,%%es\n" );
output( "\t.byte 0x2e\n\tmov %s", asm_name("CallTo16_TebSelector") );
output( "-%s,%%fs\n", asm_name("__wine_call16_start") );
output( "\t.byte 0x64\n\tmov (%d),%%gs\n", GS_OFFSET );
/* Restore the 32-bit stack */
output( "\tmovw %%di,%%ss\n" );
output( "\t.byte 0x64\n\tmovl (%d),%%esp\n", STACKOFFSET );
/* Return to caller */
output( "\tlret\n" );
output_function_size( "__wine_call_to_16_ret" );
}
/* create a .o file that references all the undefined symbols we want to resolve */
static char *create_undef_symbols_file( DLLSPEC *spec )
{
char *as_file, *obj_file;
int i;
unsigned int j;
FILE *f;
as_file = get_temp_file_name( output_file_name, ".s" );
if (!(f = fopen( as_file, "w" ))) fatal_error( "Cannot create %s\n", as_file );
fprintf( f, "\t.data\n" );
for (i = 0; i < spec->nb_entry_points; i++)
{
ORDDEF *odp = &spec->entry_points[i];
if (odp->type == TYPE_STUB || odp->type == TYPE_ABS || odp->type == TYPE_VARIABLE) continue;
if (odp->flags & FLAG_FORWARD) continue;
fprintf( f, "\t%s %s\n", get_asm_ptr_keyword(), asm_name(odp->link_name) );
}
for (j = 0; j < extra_ld_symbols.count; j++)
fprintf( f, "\t%s %s\n", get_asm_ptr_keyword(), asm_name(extra_ld_symbols.names[j]) );
fclose( f );
obj_file = get_temp_file_name( output_file_name, ".o" );
assemble_file( as_file, obj_file );
return obj_file;
}
/*******************************************************************
* BuildRelays16
*
* Build all the 16-bit relay callbacks
*/
void BuildRelays16(void)
{
if (target_cpu != CPU_x86)
{
output( "/* File not used with this architecture. Do not edit! */\n\n" );
return;
}
/* File header */
output( "/* File generated automatically. Do not edit! */\n\n" );
output( "\t.text\n" );
output( "%s:\n\n", asm_name("__wine_spec_thunk_text_16") );
output( "%s\n", asm_globl("__wine_call16_start") );
/* Standard CallFrom16 routine */
BuildCallFrom16Core( FALSE, FALSE );
/* Register CallFrom16 routine */
BuildCallFrom16Core( TRUE, FALSE );
/* C16ThkSL CallFrom16 routine */
BuildCallFrom16Core( FALSE, TRUE );
/* Standard CallTo16 routine */
BuildCallTo16Core( 0 );
/* Register CallTo16 routine */
BuildCallTo16Core( 1 );
/* Standard CallTo16 return stub */
BuildRet16Func();
/* CBClientThunkSL routine */
BuildCallTo32CBClient( FALSE );
/* CBClientThunkSLEx routine */
BuildCallTo32CBClient( TRUE );
/* Pending DPMI events check stub */
BuildPendingEventCheck();
output( "%s\n", asm_globl("__wine_call16_end") );
output_function_size( "__wine_spec_thunk_text_16" );
/* Declare the return address and data selector variables */
output( "\n\t.data\n\t.align %d\n", get_alignment(4) );
output( "%s\n\t.long 0\n", asm_globl("CallTo16_DataSelector") );
output( "%s\n\t.long 0\n", asm_globl("CallTo16_TebSelector") );
if (UsePIC) output( "wine_ldt_copy_ptr:\t.long %s\n", asm_name("wine_ldt_copy") );
output_gnu_stack_note();
}
/* output a single import thunk */
static void output_import_thunk( const char *name, const char *table, int pos )
{
output( "\n\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration(name) );
output( "%s\n", asm_globl(name) );
output_cfi( ".cfi_startproc" );
switch(target_cpu)
{
case CPU_x86:
if (!UsePIC)
{
output( "\tjmp *(%s+%d)\n", table, pos );
}
else
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tjmp *%s+%d-1b(%%eax)\n", table, pos );
}
break;
case CPU_x86_64:
output( "\tjmpq *%s+%d(%%rip)\n", table, pos );
break;
case CPU_ARM:
output( "\tldr IP,1f\n");
output( "\tldr PC,[PC,IP]\n" );
output( "1:\t.long %s+%u-(1b+4)\n", table, pos );
break;
case CPU_ARM64:
output( "\tadr x9, 1f\n" );
output( "\tldur x9, [x9, #0]\n" );
if (pos & 0xf000) output( "\tadd x9, x9, #%u\n", pos & 0xf000 );
if (pos & 0x0f00) output( "\tadd x9, x9, #%u\n", pos & 0x0f00 );
if (pos & 0x00f0) output( "\tadd x9, x9, #%u\n", pos & 0x00f0 );
if (pos & 0x000f) output( "\tadd x9, x9, #%u\n", pos & 0x000f );
output( "\tldur x9, [x9, #0]\n" );
output( "\tbr x9\n" );
output( "1:\t.quad %s\n", table );
break;
case CPU_POWERPC:
output( "\tmr %s, %s\n", ppc_reg(0), ppc_reg(31) );
if (target_platform == PLATFORM_APPLE)
{
output( "\tlis %s, ha16(%s+%d+32768)\n", ppc_reg(31), table, pos );
output( "\tla %s, lo16(%s+%d)(%s)\n", ppc_reg(31), table, pos, ppc_reg(31) );
}
else
{
output( "\tlis %s, (%s+%d+32768)@h\n", ppc_reg(31), table, pos );
output( "\tla %s, (%s+%d)@l(%s)\n", ppc_reg(31), table, pos, ppc_reg(31) );
}
output( "\tlwz %s, 0(%s)\n", ppc_reg(31), ppc_reg(31) );
output( "\tmtctr %s\n", ppc_reg(31) );
output( "\tmr %s, %s\n", ppc_reg(31), ppc_reg(0) );
output( "\tbctr\n" );
break;
}
output_cfi( ".cfi_endproc" );
output_function_size( name );
}
/* output the import thunks of a Win32 module */
static void output_immediate_import_thunks(void)
{
int i, j, pos;
int nb_imm = nb_imports - nb_delayed;
static const char import_thunks[] = "__wine_spec_import_thunks";
if (!nb_imm) return;
output( "\n/* immediate import thunks */\n\n" );
output( "\t.text\n" );
output( "\t.align %d\n", get_alignment(8) );
output( "%s:\n", asm_name(import_thunks));
for (i = pos = 0; i < nb_imports; i++)
{
if (dll_imports[i]->delay) continue;
for (j = 0; j < dll_imports[i]->nb_imports; j++, pos += get_ptr_size())
{
ORDDEF *odp = dll_imports[i]->imports[j];
output_import_thunk( odp->name ? odp->name : odp->export_name,
".L__wine_spec_import_data_ptrs", pos );
}
pos += get_ptr_size();
}
output_function_size( import_thunks );
}
/* output the get_pc thunk if needed */
void output_get_pc_thunk(void)
{
if (target_cpu != CPU_x86) return;
if (!UsePIC) return;
output( "\n\t.text\n" );
output( "\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration("__wine_spec_get_pc_thunk_eax") );
output( "%s:\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output_cfi( ".cfi_startproc" );
output( "\tmovl (%%esp),%%eax\n" );
output( "\tret\n" );
output_cfi( ".cfi_endproc" );
output_function_size( "__wine_spec_get_pc_thunk_eax" );
}
/*******************************************************************
* BuildRelays32
*
* Build all the 32-bit relay callbacks
*/
void BuildRelays32(void)
{
if (target_cpu != CPU_x86)
{
output( "/* File not used with this architecture. Do not edit! */\n\n" );
return;
}
/* File header */
output( "/* File generated automatically. Do not edit! */\n\n" );
output( "\t.text\n" );
output( "%s:\n\n", asm_name("__wine_spec_thunk_text_32") );
/* 32-bit register entry point */
BuildCallFrom32Regs();
output_function_size( "__wine_spec_thunk_text_32" );
output_gnu_stack_note();
}
/*******************************************************************
* output_asm_relays16
*
* Build all the 16-bit relay callbacks
*/
void output_asm_relays16(void)
{
/* File header */
output( "\t.text\n" );
output( "%s:\n\n", asm_name("__wine_spec_thunk_text_16") );
output( "%s\n", asm_globl("__wine_call16_start") );
/* Standard CallFrom16 routine */
BuildCallFrom16Core( 0, 0 );
/* Register CallFrom16 routine */
BuildCallFrom16Core( 1, 0 );
/* C16ThkSL CallFrom16 routine */
BuildCallFrom16Core( 0, 1 );
/* Standard CallTo16 routine */
BuildCallTo16Core( 0 );
/* Register CallTo16 routine */
BuildCallTo16Core( 1 );
/* Standard CallTo16 return stub */
BuildRet16Func();
/* CBClientThunkSL routine */
BuildCallTo32CBClient( 0 );
/* CBClientThunkSLEx routine */
BuildCallTo32CBClient( 1 );
output( "%s\n", asm_globl("__wine_call16_end") );
output_function_size( "__wine_spec_thunk_text_16" );
/* Declare the return address and data selector variables */
output( "\n\t.data\n\t.align %d\n", get_alignment(4) );
output( "%s\n\t.long 0\n", asm_globl("CallTo16_DataSelector") );
output( "%s\n\t.long 0\n", asm_globl("CallTo16_TebSelector") );
}
/*******************************************************************
* output_spec16_file
*
* Output the complete data for a spec 16-bit file.
*/
void output_spec16_file( DLLSPEC *spec16 )
{
DLLSPEC *spec32 = alloc_dll_spec();
resolve_imports( spec16 );
add_16bit_exports( spec32, spec16 );
output_standard_file_header();
output_module( spec32 );
output_module16( spec16 );
output_stubs( spec16 );
output_exports( spec32 );
output_imports( spec16 );
if (is_undefined( "__wine_call_from_16" )) output_asm_relays16();
if (spec16->main_module)
{
output( "\n\t%s\n", get_asm_string_section() );
output( ".L__wine_spec_main_module:\n" );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec16->main_module );
}
output_gnu_stack_note();
free_dll_spec( spec32 );
output("%s:/*?*/\n", asm_name("_end"));
}
/* read in the list of undefined symbols */
void read_undef_symbols( DLLSPEC *spec, char **argv )
{
size_t prefix_len;
FILE *f;
const char *prog = get_nm_command();
char *cmd, buffer[1024], name_prefix[16];
int err;
const char *name;
if (!argv[0]) return;
add_extra_undef_symbols( spec );
strcpy( name_prefix, asm_name("") );
prefix_len = strlen( name_prefix );
name = ldcombine_files( spec, argv );
cmd = strmake( "%s -u %s", prog, name );
if (!(f = popen( cmd, "r" )))
fatal_error( "Cannot execute '%s'\n", cmd );
while (fgets( buffer, sizeof(buffer), f ))
{
char *p = buffer + strlen(buffer) - 1;
if (p < buffer) continue;
if (*p == '\n') *p-- = 0;
p = buffer;
while (*p == ' ') p++;
if (p[0] == 'U' && p[1] == ' ' && p[2]) p += 2;
if (prefix_len && !strncmp( p, name_prefix, prefix_len )) p += prefix_len;
add_name( &undef_symbols, p );
}
if ((err = pclose( f ))) warning( "%s failed with status %d\n", cmd, err );
free( cmd );
}
/*******************************************************************
* output_exports
*
* Output the export table for a Win32 module.
*/
void output_exports( DLLSPEC *spec )
{
int i, fwd_size = 0;
int nr_exports = spec->base <= spec->limit ? spec->limit - spec->base + 1 : 0;
if (!nr_exports) return;
output( "\n/* export table */\n\n" );
output( "\t.data\n" );
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 0\n" ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* MajorVersion/MinorVersion */
output( "\t.long .L__wine_spec_exp_names-.L__wine_spec_rva_base\n" ); /* 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( "\t.long .L__wine_spec_exports_funcs-.L__wine_spec_rva_base\n" ); /* AddressOfFunctions */
if (spec->nb_names)
{
output( "\t.long .L__wine_spec_exp_name_ptrs-.L__wine_spec_rva_base\n" ); /* AddressOfNames */
output( "\t.long .L__wine_spec_exp_ordinals-.L__wine_spec_rva_base\n" ); /* 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", get_asm_ptr_keyword() );
else switch(odp->type)
{
case TYPE_EXTERN:
case TYPE_STDCALL:
case TYPE_VARARGS:
case TYPE_CDECL:
case TYPE_THISCALL:
if (odp->flags & FLAG_FORWARD)
{
output( "\t%s .L__wine_spec_forwards+%u\n", get_asm_ptr_keyword(), fwd_size );
fwd_size += strlen(odp->link_name) + 1;
}
else if (odp->flags & FLAG_EXT_LINK)
{
output( "\t%s %s_%s\n",
get_asm_ptr_keyword(), asm_name("__wine_spec_ext_link"), odp->link_name );
}
else
{
output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name(odp->link_name) );
}
break;
case TYPE_STUB:
output( "\t%s %s\n", get_asm_ptr_keyword(),
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( "\t.long .L__wine_spec_exp_names+%u-.L__wine_spec_rva_base\n", 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%s %d\n",
get_asm_short_keyword(), spec->names[i]->ordinal - spec->base );
}
if (spec->nb_names % 2)
{
output( "\t%s 0\n", get_asm_short_keyword() );
}
}
/* 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( "\t.align %d\n", get_alignment(get_ptr_size()) );
output( ".L__wine_spec_exports_end:\n" );
/* output relays */
if (!has_relays( spec ))
{
output( "\t%s 0\n", get_asm_ptr_keyword() );
return;
}
output( ".L__wine_spec_relay_descr:\n" );
output( "\t%s 0xdeb90001\n", get_asm_ptr_keyword() ); /* magic */
output( "\t%s 0,0\n", get_asm_ptr_keyword() ); /* relay funcs */
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_arg_types\n", get_asm_ptr_keyword() );
output_relay_debug( spec );
}
/*******************************************************************
* output_stubs
*
* Output the functions for stub entry points
*/
void output_stubs( DLLSPEC *spec )
{
const char *name, *exp_name;
int i, count;
if (!has_stubs( spec )) return;
output( "\n/* stub functions */\n\n" );
output( "\t.text\n" );
for (i = count = 0; i < spec->nb_entry_points; i++)
{
ORDDEF *odp = &spec->entry_points[i];
if (odp->type != TYPE_STUB) continue;
name = get_stub_name( odp, spec );
exp_name = odp->name ? odp->name : odp->export_name;
output( "\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration(name) );
output( "%s:\n", asm_name(name) );
output_cfi( ".cfi_startproc" );
switch (target_cpu)
{
case CPU_x86:
/* flesh out the stub a bit to make safedisc happy */
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output(" \tnop\n" );
output( "\tsubl $12,%%esp\n" );
output_cfi( ".cfi_adjust_cfa_offset 12" );
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:" );
if (exp_name)
{
output( "\tleal .L%s_string-1b(%%eax),%%ecx\n", name );
output( "\tmovl %%ecx,4(%%esp)\n" );
count++;
}
else
output( "\tmovl $%d,4(%%esp)\n", odp->ordinal );
output( "\tleal .L__wine_spec_file_name-1b(%%eax),%%ecx\n" );
output( "\tmovl %%ecx,(%%esp)\n" );
}
else
{
if (exp_name)
{
output( "\tmovl $.L%s_string,4(%%esp)\n", name );
count++;
}
else
output( "\tmovl $%d,4(%%esp)\n", odp->ordinal );
output( "\tmovl $.L__wine_spec_file_name,(%%esp)\n" );
}
output( "\tcall %s\n", asm_name("__wine_spec_unimplemented_stub") );
break;
case CPU_x86_64:
output( "\tsubq $8,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset 8" );
output( "\tleaq .L__wine_spec_file_name(%%rip),%%rdi\n" );
if (exp_name)
{
output( "leaq .L%s_string(%%rip),%%rsi\n", name );
count++;
}
else
output( "\tmovq $%d,%%rsi\n", odp->ordinal );
output( "\tcall %s\n", asm_name("__wine_spec_unimplemented_stub") );
break;
case CPU_ARM:
output( "\tldr r0,[PC,#0]\n");
output( "\tmov PC,PC\n");
output( "\t.long .L__wine_spec_file_name\n" );
output( "\tldr r1,[PC,#0]\n");
output( "\tmov PC,PC\n");
if (exp_name)
{
output( "\t.long .L%s_string\n", name );
count++;
}
else
output( "\t.long %d\n", odp->ordinal );
output( "\tbl %s\n", asm_name("__wine_spec_unimplemented_stub") );
break;
default:
assert(0);
}
output_cfi( ".cfi_endproc" );
output_function_size( name );
}
if (count)
{
output( "\t%s\n", get_asm_string_section() );
for (i = 0; i < spec->nb_entry_points; i++)
{
ORDDEF *odp = &spec->entry_points[i];
if (odp->type != TYPE_STUB) continue;
exp_name = odp->name ? odp->name : odp->export_name;
if (exp_name)
{
name = get_stub_name( odp, spec );
output( ".L%s_string:\n", name );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), exp_name );
}
}
}
}
/*******************************************************************
* output_relay_debug
*
* Output entry points for relay debugging
*/
static void output_relay_debug( FILE *outfile, DLLSPEC *spec )
{
unsigned int i, j, args, flags;
/* first the table of entry point offsets */
fprintf( outfile, "\t%s\n", get_asm_rodata_section() );
fprintf( outfile, "\t.align %d\n", get_alignment(4) );
fprintf( outfile, ".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 ))
fprintf( outfile, "\t.long .L__wine_spec_relay_entry_point_%d-__wine_spec_relay_entry_points\n", i );
else
fprintf( outfile, "\t.long 0\n" );
}
/* then the table of argument types */
fprintf( outfile, "\t.align %d\n", get_alignment(4) );
fprintf( outfile, ".L__wine_spec_relay_arg_types:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
unsigned int mask = 0;
if (needs_relay( odp ))
{
for (j = 0; j < 16 && odp->u.func.arg_types[j]; j++)
{
if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
}
}
fprintf( outfile, "\t.long 0x%08x\n", mask );
}
/* then the relay thunks */
fprintf( outfile, "\t.text\n" );
fprintf( outfile, "__wine_spec_relay_entry_points:\n" );
fprintf( outfile, "\tnop\n" ); /* to avoid 0 offset */
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!needs_relay( odp )) continue;
fprintf( outfile, "\t.align %d\n", get_alignment(4) );
fprintf( outfile, ".L__wine_spec_relay_entry_point_%d:\n", i );
if (odp->flags & FLAG_REGISTER)
fprintf( outfile, "\tpushl %%eax\n" );
else
fprintf( outfile, "\tpushl %%esp\n" );
args = strlen(odp->u.func.arg_types);
flags = 0;
if (odp->flags & FLAG_RET64) flags |= 1;
if (odp->type == TYPE_STDCALL) flags |= 2;
fprintf( outfile, "\tpushl $%u\n", (flags << 24) | (args << 16) | (i - spec->base) );
if (UsePIC)
{
fprintf( outfile, "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
fprintf( outfile, "1:\tleal .L__wine_spec_relay_descr-1b(%%eax),%%eax\n" );
}
else fprintf( outfile, "\tmovl $.L__wine_spec_relay_descr,%%eax\n" );
fprintf( outfile, "\tpushl %%eax\n" );
if (odp->flags & FLAG_REGISTER)
{
fprintf( outfile, "\tcall *8(%%eax)\n" );
}
else
{
fprintf( outfile, "\tcall *4(%%eax)\n" );
if (odp->type == TYPE_STDCALL)
fprintf( outfile, "\tret $%u\n", args * get_ptr_size() );
else
fprintf( outfile, "\tret\n" );
}
}
}
void
symtab_node::dump_base (FILE *f)
{
static const char * const visibility_types[] = {
"default", "protected", "hidden", "internal"
};
fprintf (f, "%s/%i (%s)", asm_name (), order, name ());
dump_addr (f, " @", (void *)this);
fprintf (f, "\n Type: %s", symtab_type_names[type]);
if (definition)
fprintf (f, " definition");
if (analyzed)
fprintf (f, " analyzed");
if (alias)
fprintf (f, " alias");
if (weakref)
fprintf (f, " weakref");
if (cpp_implicit_alias)
fprintf (f, " cpp_implicit_alias");
if (alias_target)
fprintf (f, " target:%s",
DECL_P (alias_target)
? IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME
(alias_target))
: IDENTIFIER_POINTER (alias_target));
if (body_removed)
fprintf (f, "\n Body removed by symtab_remove_unreachable_nodes");
fprintf (f, "\n Visibility:");
if (in_other_partition)
fprintf (f, " in_other_partition");
if (used_from_other_partition)
fprintf (f, " used_from_other_partition");
if (force_output)
fprintf (f, " force_output");
if (forced_by_abi)
fprintf (f, " forced_by_abi");
if (externally_visible)
fprintf (f, " externally_visible");
if (resolution != LDPR_UNKNOWN)
fprintf (f, " %s",
ld_plugin_symbol_resolution_names[(int)resolution]);
if (TREE_ASM_WRITTEN (decl))
fprintf (f, " asm_written");
if (DECL_EXTERNAL (decl))
fprintf (f, " external");
if (TREE_PUBLIC (decl))
fprintf (f, " public");
if (DECL_COMMON (decl))
fprintf (f, " common");
if (DECL_WEAK (decl))
fprintf (f, " weak");
if (DECL_DLLIMPORT_P (decl))
fprintf (f, " dll_import");
if (DECL_COMDAT (decl))
fprintf (f, " comdat");
if (get_comdat_group ())
fprintf (f, " comdat_group:%s",
IDENTIFIER_POINTER (get_comdat_group_id ()));
if (DECL_ONE_ONLY (decl))
fprintf (f, " one_only");
if (get_section ())
fprintf (f, " section:%s",
get_section ());
if (implicit_section)
fprintf (f," (implicit_section)");
if (DECL_VISIBILITY_SPECIFIED (decl))
fprintf (f, " visibility_specified");
if (DECL_VISIBILITY (decl))
fprintf (f, " visibility:%s",
visibility_types [DECL_VISIBILITY (decl)]);
if (DECL_VIRTUAL_P (decl))
fprintf (f, " virtual");
if (DECL_ARTIFICIAL (decl))
fprintf (f, " artificial");
if (TREE_CODE (decl) == FUNCTION_DECL)
{
if (DECL_STATIC_CONSTRUCTOR (decl))
fprintf (f, " constructor");
if (DECL_STATIC_DESTRUCTOR (decl))
fprintf (f, " destructor");
}
fprintf (f, "\n");
if (same_comdat_group)
fprintf (f, " Same comdat group as: %s/%i\n",
same_comdat_group->asm_name (),
same_comdat_group->order);
if (next_sharing_asm_name)
fprintf (f, " next sharing asm name: %i\n",
next_sharing_asm_name->order);
if (previous_sharing_asm_name)
fprintf (f, " previous sharing asm name: %i\n",
previous_sharing_asm_name->order);
if (address_taken)
fprintf (f, " Address is taken.\n");
if (aux)
{
fprintf (f, " Aux:");
dump_addr (f, " @", (void *)aux);
}
fprintf (f, " References: ");
dump_references (f);
fprintf (f, " Referring: ");
dump_referring (f);
if (lto_file_data)
fprintf (f, " Read from file: %s\n",
lto_file_data->file_name);
}
/*******************************************************************
* output_call16_function
*
* Build a 16-bit-to-Wine callback glue function.
*
* The generated routines are intended to be used as argument conversion
* routines to be called by the CallFrom16... core. Thus, the prototypes of
* the generated routines are (see also CallFrom16):
*
* extern WORD WINAPI __wine_spec_call16_C_xxx( FARPROC func, LPBYTE args );
* extern LONG WINAPI __wine_spec_call16_C_xxx( FARPROC func, LPBYTE args );
* extern void WINAPI __wine_spec_call16_C_xxx_regs( FARPROC func, LPBYTE args, CONTEXT86 *context );
*
* where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
* and each 'x' is an argument ('w'=word, 's'=signed word, 'l'=long,
* 'p'=linear pointer, 't'=linear pointer to null-terminated string,
* 'T'=segmented pointer to null-terminated string).
*
* The generated routines fetch the arguments from the 16-bit stack (pointed
* to by 'args'); the offsets of the single argument values are computed
* according to the calling convention and the argument types. Then, the
* 32-bit entry point is called with these arguments.
*
* For register functions, the arguments (if present) are converted just
* the same as for normal functions, but in addition the CONTEXT86 pointer
* filled with the current register values is passed to the 32-bit routine.
*/
static void output_call16_function( ORDDEF *odp )
{
char *name;
int i, pos, stack_words;
int argsize = get_function_argsize( odp );
int needs_ldt = (strpbrk( get_args_str( odp ), "pt" ) != NULL);
name = strmake( ".L__wine_spec_call16_%s", get_relay_name(odp) );
output( "\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration(name) );
output( "%s:\n", name );
output_cfi( ".cfi_startproc" );
output( "\tpushl %%ebp\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output_cfi( ".cfi_rel_offset %%ebp,0" );
output( "\tmovl %%esp,%%ebp\n" );
output_cfi( ".cfi_def_cfa_register %%ebp" );
stack_words = 2;
if (needs_ldt)
{
output( "\tpushl %%esi\n" );
output_cfi( ".cfi_rel_offset %%esi,-4" );
stack_words++;
if (UsePIC)
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tmovl wine_ldt_copy_ptr-1b(%%eax),%%esi\n" );
}
else
output( "\tmovl $%s,%%esi\n", asm_name("_imp__wine_ldt_copy") );
}
/* preserve 16-byte stack alignment */
stack_words += odp->u.func.nb_args;
for (i = 0; i < odp->u.func.nb_args; i++)
if (odp->u.func.args[i] == ARG_DOUBLE || odp->u.func.args[i] == ARG_INT64) stack_words++;
if ((odp->flags & FLAG_REGISTER) || (odp->type == TYPE_VARARGS)) stack_words++;
if (stack_words % 4) output( "\tsubl $%d,%%esp\n", 16 - 4 * (stack_words % 4) );
if (odp->u.func.nb_args || odp->type == TYPE_VARARGS)
output( "\tmovl 12(%%ebp),%%ecx\n" ); /* args */
if (odp->flags & FLAG_REGISTER)
{
output( "\tpushl 16(%%ebp)\n" ); /* context */
}
else if (odp->type == TYPE_VARARGS)
{
output( "\tleal %d(%%ecx),%%eax\n", argsize );
output( "\tpushl %%eax\n" ); /* va_list16 */
}
pos = (odp->type == TYPE_PASCAL) ? 0 : argsize;
for (i = odp->u.func.nb_args - 1; i >= 0; i--)
{
switch (odp->u.func.args[i])
{
case ARG_WORD:
if (odp->type != TYPE_PASCAL) pos -= 2;
output( "\tmovzwl %d(%%ecx),%%eax\n", pos );
output( "\tpushl %%eax\n" );
if (odp->type == TYPE_PASCAL) pos += 2;
break;
case ARG_SWORD:
if (odp->type != TYPE_PASCAL) pos -= 2;
output( "\tmovswl %d(%%ecx),%%eax\n", pos );
output( "\tpushl %%eax\n" );
if (odp->type == TYPE_PASCAL) pos += 2;
break;
case ARG_INT64:
case ARG_DOUBLE:
if (odp->type != TYPE_PASCAL) pos -= 4;
output( "\tpushl %d(%%ecx)\n", pos );
if (odp->type == TYPE_PASCAL) pos += 4;
/* fall through */
case ARG_LONG:
case ARG_FLOAT:
case ARG_SEGPTR:
case ARG_SEGSTR:
if (odp->type != TYPE_PASCAL) pos -= 4;
output( "\tpushl %d(%%ecx)\n", pos );
if (odp->type == TYPE_PASCAL) pos += 4;
break;
case ARG_PTR:
case ARG_STR:
case ARG_WSTR:
case ARG_INT128:
if (odp->type != TYPE_PASCAL) pos -= 4;
output( "\tmovzwl %d(%%ecx),%%edx\n", pos + 2 ); /* sel */
output( "\tshr $3,%%edx\n" );
output( "\tmovzwl %d(%%ecx),%%eax\n", pos ); /* offset */
output( "\taddl (%%esi,%%edx,4),%%eax\n" );
output( "\tpushl %%eax\n" );
if (odp->type == TYPE_PASCAL) pos += 4;
break;
}
}
output( "\tcall *8(%%ebp)\n" );
if (needs_ldt)
{
output( "\tmovl -4(%%ebp),%%esi\n" );
output_cfi( ".cfi_same_value %%esi" );
}
output( "\tleave\n" );
output_cfi( ".cfi_def_cfa %%esp,4" );
output_cfi( ".cfi_same_value %%ebp" );
output( "\tret\n" );
output_cfi( ".cfi_endproc" );
output_function_size( name );
free( name );
}
/*******************************************************************
* output_module16
*
* Output code for a 16-bit module.
*/
static void output_module16( DLLSPEC *spec )
{
ORDDEF **typelist;
ORDDEF *entry_point = NULL;
int i, j, nb_funcs;
/* store the main entry point as ordinal 0 */
if (!spec->ordinals)
{
assert(spec->limit == 0);
spec->ordinals = xmalloc( sizeof(spec->ordinals[0]) );
spec->ordinals[0] = NULL;
}
if (spec->init_func && !(spec->characteristics & IMAGE_FILE_DLL))
{
entry_point = xmalloc( sizeof(*entry_point) );
entry_point->type = TYPE_PASCAL;
entry_point->ordinal = 0;
entry_point->lineno = 0;
entry_point->flags = FLAG_REGISTER;
entry_point->name = NULL;
entry_point->link_name = xstrdup( spec->init_func );
entry_point->export_name = NULL;
entry_point->u.func.nb_args = 0;
assert( !spec->ordinals[0] );
spec->ordinals[0] = entry_point;
}
/* Build sorted list of all argument types, without duplicates */
typelist = xmalloc( (spec->limit + 1) * sizeof(*typelist) );
for (i = nb_funcs = 0; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!odp) continue;
if (is_function( odp )) typelist[nb_funcs++] = odp;
}
nb_funcs = sort_func_list( typelist, nb_funcs, callfrom16_type_compare );
/* Output the module structure */
output( "\n/* module data */\n\n" );
output( "\t.data\n" );
output( "\t.align %d\n", get_alignment(4) );
output("\t.globl __wine_spec_dos_header\n");
output("__wine_spec_dos_header:\n");
output("\t.globl _wine_spec_dos_header\n");
output("_wine_spec_dos_header:\n");
output( ".L__wine_spec_dos_header:\n" );
output( "\t.short 0x5a4d\n" ); /* e_magic */
output( "\t.short 0\n" ); /* e_cblp */
output( "\t.short 0\n" ); /* e_cp */
output( "\t.short 0\n" ); /* e_crlc */
output( "\t.short 0\n" ); /* e_cparhdr */
output( "\t.short 0\n" ); /* e_minalloc */
output( "\t.short 0\n" ); /* e_maxalloc */
output( "\t.short 0\n" ); /* e_ss */
output( "\t.short 0\n" ); /* e_sp */
output( "\t.short 0\n" ); /* e_csum */
output( "\t.short 0\n" ); /* e_ip */
output( "\t.short 0\n" ); /* e_cs */
output( "\t.short 0\n" ); /* e_lfarlc */
output( "\t.short 0\n" ); /* e_ovno */
output( "\t.short 0,0,0,0\n" ); /* e_res */
output( "\t.short 0\n" ); /* e_oemid */
output( "\t.short 0\n" ); /* e_oeminfo */
output( "\t.short 0,0,0,0,0,0,0,0,0,0\n" ); /* e_res2 */
output( "\t.long .L__wine_spec_ne_header-.L__wine_spec_dos_header\n" );/* e_lfanew */
output( ".L__wine_spec_ne_header:\n" );
output( "\t.short 0x454e\n" ); /* ne_magic */
output( "\t.byte 0\n" ); /* ne_ver */
output( "\t.byte 0\n" ); /* ne_rev */
output( "\t.short .L__wine_spec_ne_enttab-.L__wine_spec_ne_header\n" );/* ne_enttab */
output( "\t.short .L__wine_spec_ne_enttab_end-.L__wine_spec_ne_enttab\n" );/* ne_cbenttab */
output( "\t.long 0\n" ); /* ne_crc */
output( "\t.short 0x%04x\n", NE_FFLAGS_SINGLEDATA | /* ne_flags */
((spec->characteristics & IMAGE_FILE_DLL) ? NE_FFLAGS_LIBMODULE : 0) );
output( "\t.short 2\n" ); /* ne_autodata */
output( "\t.short %u\n", spec->heap_size ); /* ne_heap */
output( "\t.short 0\n" ); /* ne_stack */
if (!entry_point) output( "\t.long 0\n" ); /* ne_csip */
else output( "\t.short .L__wine_%s_0-.L__wine_spec_code_segment,1\n",
make_c_identifier(spec->dll_name) );
output( "\t.short 0,2\n" ); /* ne_sssp */
output( "\t.short 2\n" ); /* ne_cseg */
output( "\t.short 0\n" ); /* ne_cmod */
output( "\t.short 0\n" ); /* ne_cbnrestab */
output( "\t.short .L__wine_spec_ne_segtab-.L__wine_spec_ne_header\n" );/* ne_segtab */
output( "\t.short .L__wine_spec_ne_rsrctab-.L__wine_spec_ne_header\n" ); /* ne_rsrctab */
output( "\t.short .L__wine_spec_ne_restab-.L__wine_spec_ne_header\n" ); /* ne_restab */
output( "\t.short .L__wine_spec_ne_modtab-.L__wine_spec_ne_header\n" ); /* ne_modtab */
output( "\t.short .L__wine_spec_ne_imptab-.L__wine_spec_ne_header\n" ); /* ne_imptab */
output( "\t.long 0\n" ); /* ne_nrestab */
output( "\t.short 0\n" ); /* ne_cmovent */
output( "\t.short 0\n" ); /* ne_align */
output( "\t.short 0\n" ); /* ne_cres */
output( "\t.byte 0x02\n" ); /* ne_exetyp = NE_OSFLAGS_WINDOWS */
output( "\t.byte 0x08\n" ); /* ne_flagsothers = NE_AFLAGS_FASTLOAD */
output( "\t.short 0\n" ); /* ne_pretthunks */
output( "\t.short 0\n" ); /* ne_psegrefbytes */
output( "\t.short 0\n" ); /* ne_swaparea */
output( "\t.short 0\n" ); /* ne_expver */
/* segment table */
output( "\n.L__wine_spec_ne_segtab:\n" );
/* code segment entry */
output( "\t.short .L__wine_spec_code_segment-.L__wine_spec_dos_header\n" ); /* filepos */
output( "\t.short .L__wine_spec_code_segment_end-.L__wine_spec_code_segment\n" ); /* size */
output( "\t.short 0x2000\n" ); /* flags = NE_SEGFLAGS_32BIT */
output( "\t.short .L__wine_spec_code_segment_end-.L__wine_spec_code_segment\n" ); /* minsize */
/* data segment entry */
output( "\t.short .L__wine_spec_data_segment-.L__wine_spec_dos_header\n" ); /* filepos */
output( "\t.short .L__wine_spec_data_segment_end-.L__wine_spec_data_segment\n" ); /* size */
output( "\t.short 0x0001\n" ); /* flags = NE_SEGFLAGS_DATA */
output( "\t.short .L__wine_spec_data_segment_end-.L__wine_spec_data_segment\n" ); /* minsize */
/* resource directory */
output_res16_directory( spec );
/* resident names table */
output( "\n\t.align %d\n", get_alignment(2) );
output( ".L__wine_spec_ne_restab:\n" );
output_resident_name( spec->dll_name, 0 );
for (i = 1; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!odp || !odp->name[0]) continue;
if (odp->flags & FLAG_EXPORT32) continue;
output_resident_name( odp->name, i );
}
output( "\t.byte 0\n" );
/* imported names table */
output( "\n\t.align %d\n", get_alignment(2) );
output( ".L__wine_spec_ne_modtab:\n" );
output( ".L__wine_spec_ne_imptab:\n" );
output( "\t.byte 0,0\n" );
/* entry table */
output( "\n.L__wine_spec_ne_enttab:\n" );
output_entry_table( spec );
output( ".L__wine_spec_ne_enttab_end:\n" );
/* code segment */
output( "\n\t.align %d\n", get_alignment(2) );
output( ".L__wine_spec_code_segment:\n" );
for ( i = 0; i < nb_funcs; i++ )
{
unsigned int arg_types[2];
int nop_words, pos, argsize = 0;
if ( typelist[i]->type == TYPE_PASCAL )
argsize = get_function_argsize( typelist[i] );
/* build the arg types bit fields */
arg_types[0] = arg_types[1] = 0;
for (j = pos = 0; j < typelist[i]->u.func.nb_args && pos < 20; j++, pos++)
{
int type = 0;
switch (typelist[i]->u.func.args[j])
{
case ARG_WORD: type = ARG16_WORD; break;
case ARG_SWORD: type = ARG16_SWORD; break;
case ARG_SEGPTR: type = ARG16_LONG; break;
case ARG_SEGSTR: type = ARG16_SEGSTR; break;
case ARG_LONG: type = ARG16_LONG; break;
case ARG_PTR: type = ARG16_PTR; break;
case ARG_STR: type = ARG16_STR; break;
case ARG_WSTR: type = ARG16_PTR; break;
case ARG_FLOAT: type = ARG16_LONG; break;
case ARG_INT128: type = ARG16_PTR; break;
case ARG_INT64:
case ARG_DOUBLE:
type = ARG16_LONG;
arg_types[pos / 10] |= type << (3 * (pos % 10));
pos++;
break;
}
if (pos < 20) arg_types[pos / 10] |= type << (3 * (pos % 10));
}
if (typelist[i]->type == TYPE_VARARGS && pos < 20)
arg_types[pos / 10] |= ARG16_VARARG << (3 * (pos % 10));
output( ".L__wine_spec_callfrom16_%s:\n", get_callfrom16_name(typelist[i]) );
output( "\tpushl $.L__wine_spec_call16_%s\n", get_relay_name(typelist[i]) );
output( "\tlcall $0,$0\n" );
if (typelist[i]->flags & FLAG_REGISTER)
{
nop_words = 4;
}
else if (typelist[i]->flags & FLAG_RET16)
{
output( "\torw %%ax,%%ax\n" );
output( "\tnop\n" ); /* so that the lretw is aligned */
nop_words = 2;
}
else
{
output( "\tshld $16,%%eax,%%edx\n" );
output( "\torl %%eax,%%eax\n" );
nop_words = 1;
}
if (argsize)
{
output( "\tlretw $%u\n", argsize );
nop_words--;
}
else output( "\tlretw\n" );
if (nop_words) output( "\t%s\n", nop_sequence[nop_words-1] );
/* the movl is here so that the code contains only valid instructions, */
/* it's never actually executed, we only care about the arg_types[] values */
output( "\t.short 0x86c7\n" );
output( "\t.long 0x%08x,0x%08x\n", arg_types[0], arg_types[1] );
}
for (i = 0; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!odp || !is_function( odp )) continue;
output( ".L__wine_%s_%u:\n", make_c_identifier(spec->dll_name), i );
output( "\tpushw %%bp\n" );
output( "\tpushl $%s\n",
asm_name_stdcall16( odp->type == TYPE_STUB ? get_stub_name( odp, spec ) : odp->link_name , odp));
output( "\tcallw .L__wine_spec_callfrom16_%s\n", get_callfrom16_name( odp ) );
}
output( ".L__wine_spec_code_segment_end:\n" );
/* data segment */
output( "\n.L__wine_spec_data_segment:\n" );
output( "\t.byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0\n" ); /* instance data */
for (i = 0; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
if (!odp || odp->type != TYPE_VARIABLE) continue;
output( ".L__wine_%s_%u:\n", make_c_identifier(spec->dll_name), i );
output( "\t.long " );
for (j = 0; j < odp->u.var.n_values-1; j++)
output( "0x%08x,", odp->u.var.values[j] );
output( "0x%08x\n", odp->u.var.values[j] );
}
output( ".L__wine_spec_data_segment_end:\n" );
/* resource data */
if (spec->nb_resources)
{
output( "\n.L__wine_spec_resource_data:\n" );
output_res16_data( spec );
}
output( "\t.byte 0\n" ); /* make sure the last symbol points to something */
/* relay functions */
nb_funcs = sort_func_list( typelist, nb_funcs, relay_type_compare );
if (nb_funcs)
{
output( "\n/* relay functions */\n\n" );
output( "\t.text\n" );
for ( i = 0; i < nb_funcs; i++ ) output_call16_function( typelist[i] );
output( "\t.data\n" );
output( "wine_ldt_copy_ptr:\n" );
output( "\t.long %s\n", asm_name("_imp__wine_ldt_copy") );
}
free( typelist );
}
/*******************************************************************
* BuildCallFrom16Core
*
* This routine builds the core routines used in 16->32 thunks:
* CallFrom16Word, CallFrom16Long, CallFrom16Register, and CallFrom16Thunk.
*
* These routines are intended to be called via a far call (with 32-bit
* operand size) from 16-bit code. The 16-bit code stub must push %bp,
* the 32-bit entry point to be called, and the argument conversion
* routine to be used (see stack layout below).
*
* The core routine completes the STACK16FRAME on the 16-bit stack and
* switches to the 32-bit stack. Then, the argument conversion routine
* is called; it gets passed the 32-bit entry point and a pointer to the
* 16-bit arguments (on the 16-bit stack) as parameters. (You can either
* use conversion routines automatically generated by BuildCallFrom16,
* or write your own for special purposes.)
*
* The conversion routine must call the 32-bit entry point, passing it
* the converted arguments, and return its return value to the core.
* After the conversion routine has returned, the core switches back
* to the 16-bit stack, converts the return value to the DX:AX format
* (CallFrom16Long), and returns to the 16-bit call stub. All parameters,
* including %bp, are popped off the stack.
*
* The 16-bit call stub now returns to the caller, popping the 16-bit
* arguments if necessary (pascal calling convention).
*
* In the case of a 'register' function, CallFrom16Register fills a
* CONTEXT86 structure with the values all registers had at the point
* the first instruction of the 16-bit call stub was about to be
* executed. A pointer to this CONTEXT86 is passed as third parameter
* to the argument conversion routine, which typically passes it on
* to the called 32-bit entry point.
*
* CallFrom16Thunk is a special variant used by the implementation of
* the Win95 16->32 thunk functions C16ThkSL and C16ThkSL01 and is
* implemented as follows:
* On entry, the EBX register is set up to contain a flat pointer to the
* 16-bit stack such that EBX+22 points to the first argument.
* Then, the entry point is called, while EBP is set up to point
* to the return address (on the 32-bit stack).
* The called function returns with CX set to the number of bytes
* to be popped of the caller's stack.
*
* Stack layout upon entry to the core routine (STACK16FRAME):
* ... ...
* (sp+24) word first 16-bit arg
* (sp+22) word cs
* (sp+20) word ip
* (sp+18) word bp
* (sp+14) long 32-bit entry point (reused for Win16 mutex recursion count)
* (sp+12) word ip of actual entry point (necessary for relay debugging)
* (sp+8) long relay (argument conversion) function entry point
* (sp+4) long cs of 16-bit entry point
* (sp) long ip of 16-bit entry point
*
* Added on the stack:
* (sp-2) word saved gs
* (sp-4) word saved fs
* (sp-6) word saved es
* (sp-8) word saved ds
* (sp-12) long saved ebp
* (sp-16) long saved ecx
* (sp-20) long saved edx
* (sp-24) long saved previous stack
*/
static void BuildCallFrom16Core( int reg_func, int thunk )
{
/* Function header */
if (thunk) function_header( "__wine_call_from_16_thunk" );
else if (reg_func) function_header( "__wine_call_from_16_regs" );
else function_header( "__wine_call_from_16" );
/* Create STACK16FRAME (except STACK32FRAME link) */
output( "\tpushw %%gs\n" );
output( "\tpushw %%fs\n" );
output( "\tpushw %%es\n" );
output( "\tpushw %%ds\n" );
output( "\tpushl %%ebp\n" );
output( "\tpushl %%ecx\n" );
output( "\tpushl %%edx\n" );
/* Save original EFlags register */
if (reg_func) output( "\tpushfl\n" );
if ( UsePIC )
{
output( "\tcall 1f\n" );
output( "1:\tpopl %%ecx\n" );
output( "\t.byte 0x2e\n\tmovl %s-1b(%%ecx),%%edx\n", asm_name("CallTo16_DataSelector") );
}
else
output( "\t.byte 0x2e\n\tmovl %s,%%edx\n", asm_name("CallTo16_DataSelector") );
/* Load 32-bit segment registers */
output( "\tmovw %%dx, %%ds\n" );
output( "\tmovw %%dx, %%es\n" );
if ( UsePIC )
output( "\tmovw %s-1b(%%ecx), %%fs\n", asm_name("CallTo16_TebSelector") );
else
output( "\tmovw %s, %%fs\n", asm_name("CallTo16_TebSelector") );
output( "\t.byte 0x64\n\tmov (%d),%%gs\n", GS_OFFSET );
/* Translate STACK16FRAME base to flat offset in %edx */
output( "\tmovw %%ss, %%dx\n" );
output( "\tandl $0xfff8, %%edx\n" );
output( "\tshrl $1, %%edx\n" );
if (UsePIC)
{
output( "\taddl wine_ldt_copy_ptr-1b(%%ecx),%%edx\n" );
output( "\tmovl (%%edx), %%edx\n" );
}
else
output( "\tmovl %s(%%edx), %%edx\n", asm_name("wine_ldt_copy") );
output( "\tmovzwl %%sp, %%ebp\n" );
output( "\tleal %d(%%ebp,%%edx), %%edx\n", reg_func ? 0 : -4 );
/* Get saved flags into %ecx */
if (reg_func) output( "\tpopl %%ecx\n" );
/* Get the 32-bit stack pointer from the TEB and complete STACK16FRAME */
output( "\t.byte 0x64\n\tmovl (%d), %%ebp\n", STACKOFFSET );
output( "\tpushl %%ebp\n" );
/* Switch stacks */
output( "\t.byte 0x64\n\tmovw %%ss, (%d)\n", STACKOFFSET + 2 );
output( "\t.byte 0x64\n\tmovw %%sp, (%d)\n", STACKOFFSET );
output( "\tpushl %%ds\n" );
output( "\tpopl %%ss\n" );
output( "\tmovl %%ebp, %%esp\n" );
output( "\taddl $0x20,%%ebp\n"); /* FIELD_OFFSET(STACK32FRAME,ebp) */
/* At this point:
STACK16FRAME is completely set up
DS, ES, SS: flat data segment
FS: current TEB
ESP: points to last STACK32FRAME
EBP: points to ebp member of last STACK32FRAME
EDX: points to current STACK16FRAME
ECX: contains saved flags
all other registers: unchanged */
/* Special case: C16ThkSL stub */
if ( thunk )
{
/* Set up registers as expected and call thunk */
output( "\tleal 0x1a(%%edx),%%ebx\n" ); /* sizeof(STACK16FRAME)-22 */
output( "\tleal -4(%%esp), %%ebp\n" );
output( "\tcall *0x26(%%edx)\n"); /* FIELD_OFFSET(STACK16FRAME,entry_point) */
/* Switch stack back */
output( "\t.byte 0x64\n\tmovw (%d), %%ss\n", STACKOFFSET+2 );
output( "\t.byte 0x64\n\tmovzwl (%d), %%esp\n", STACKOFFSET );
output( "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
/* Restore registers and return directly to caller */
output( "\taddl $8, %%esp\n" );
output( "\tpopl %%ebp\n" );
output( "\tpopw %%ds\n" );
output( "\tpopw %%es\n" );
output( "\tpopw %%fs\n" );
output( "\tpopw %%gs\n" );
output( "\taddl $20, %%esp\n" );
output( "\txorb %%ch, %%ch\n" );
output( "\tpopl %%ebx\n" );
output( "\taddw %%cx, %%sp\n" );
output( "\tpush %%ebx\n" );
output( "\t.byte 0x66\n" );
output( "\tlret\n" );
output_function_size( "__wine_call_from_16_thunk" );
return;
}
/* Build register CONTEXT */
if ( reg_func )
{
output( "\tsubl $0x2cc,%%esp\n" ); /* sizeof(CONTEXT86) */
output( "\tmovl %%ecx,0xc0(%%esp)\n" ); /* EFlags */
output( "\tmovl %%eax,0xb0(%%esp)\n" ); /* Eax */
output( "\tmovl %%ebx,0xa4(%%esp)\n" ); /* Ebx */
output( "\tmovl %%esi,0xa0(%%esp)\n" ); /* Esi */
output( "\tmovl %%edi,0x9c(%%esp)\n" ); /* Edi */
output( "\tmovl 0x0c(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,ebp) */
output( "\tmovl %%eax,0xb4(%%esp)\n" ); /* Ebp */
output( "\tmovl 0x08(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,ecx) */
output( "\tmovl %%eax,0xac(%%esp)\n" ); /* Ecx */
output( "\tmovl 0x04(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,edx) */
output( "\tmovl %%eax,0xa8(%%esp)\n" ); /* Edx */
output( "\tmovzwl 0x10(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,ds) */
output( "\tmovl %%eax,0x98(%%esp)\n" ); /* SegDs */
output( "\tmovzwl 0x12(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,es) */
output( "\tmovl %%eax,0x94(%%esp)\n" ); /* SegEs */
output( "\tmovzwl 0x14(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,fs) */
output( "\tmovl %%eax,0x90(%%esp)\n" ); /* SegFs */
output( "\tmovzwl 0x16(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,gs) */
output( "\tmovl %%eax,0x8c(%%esp)\n" ); /* SegGs */
output( "\tmovzwl 0x2e(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,cs) */
output( "\tmovl %%eax,0xbc(%%esp)\n" ); /* SegCs */
output( "\tmovzwl 0x2c(%%edx),%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,ip) */
output( "\tmovl %%eax,0xb8(%%esp)\n" ); /* Eip */
output( "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET+2 );
output( "\tmovl %%eax,0xc8(%%esp)\n" ); /* SegSs */
output( "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET );
output( "\taddl $0x2c,%%eax\n"); /* FIELD_OFFSET(STACK16FRAME,ip) */
output( "\tmovl %%eax,0xc4(%%esp)\n" ); /* Esp */
#if 0
output( "\tfsave 0x1c(%%esp)\n" ); /* FloatSave */
#endif
/* Push address of CONTEXT86 structure -- popped by the relay routine */
output( "\tmovl %%esp,%%eax\n" );
output( "\tandl $~15,%%esp\n" );
output( "\tsubl $4,%%esp\n" );
output( "\tpushl %%eax\n" );
}
else
{
output( "\tsubl $8,%%esp\n" );
output( "\tandl $~15,%%esp\n" );
output( "\taddl $8,%%esp\n" );
}
/* Call relay routine (which will call the API entry point) */
output( "\tleal 0x30(%%edx),%%eax\n" ); /* sizeof(STACK16FRAME) */
output( "\tpushl %%eax\n" );
output( "\tpushl 0x26(%%edx)\n"); /* FIELD_OFFSET(STACK16FRAME,entry_point) */
output( "\tcall *0x20(%%edx)\n"); /* FIELD_OFFSET(STACK16FRAME,relay) */
if ( reg_func )
{
output( "\tleal -748(%%ebp),%%ebx\n" ); /* sizeof(CONTEXT) + FIELD_OFFSET(STACK32FRAME,ebp) */
/* Switch stack back */
output( "\t.byte 0x64\n\tmovw (%d), %%ss\n", STACKOFFSET+2 );
output( "\t.byte 0x64\n\tmovzwl (%d), %%esp\n", STACKOFFSET );
output( "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
/* Get return address to CallFrom16 stub */
output( "\taddw $0x14,%%sp\n" ); /* FIELD_OFFSET(STACK16FRAME,callfrom_ip)-4 */
output( "\tpopl %%eax\n" );
output( "\tpopl %%edx\n" );
/* Restore all registers from CONTEXT */
output( "\tmovw 0xc8(%%ebx),%%ss\n"); /* SegSs */
output( "\tmovl 0xc4(%%ebx),%%esp\n"); /* Esp */
output( "\taddl $4, %%esp\n" ); /* room for final return address */
output( "\tpushw 0xbc(%%ebx)\n"); /* SegCs */
output( "\tpushw 0xb8(%%ebx)\n"); /* Eip */
output( "\tpushl %%edx\n" );
output( "\tpushl %%eax\n" );
output( "\tpushl 0xc0(%%ebx)\n"); /* EFlags */
output( "\tpushl 0x98(%%ebx)\n"); /* SegDs */
output( "\tpushl 0x94(%%ebx)\n"); /* SegEs */
output( "\tpopl %%es\n" );
output( "\tpushl 0x90(%%ebx)\n"); /* SegFs */
output( "\tpopl %%fs\n" );
output( "\tpushl 0x8c(%%ebx)\n"); /* SegGs */
output( "\tpopl %%gs\n" );
output( "\tmovl 0xb4(%%ebx),%%ebp\n"); /* Ebp */
output( "\tmovl 0xa0(%%ebx),%%esi\n"); /* Esi */
output( "\tmovl 0x9c(%%ebx),%%edi\n"); /* Edi */
output( "\tmovl 0xb0(%%ebx),%%eax\n"); /* Eax */
output( "\tmovl 0xa8(%%ebx),%%edx\n"); /* Edx */
output( "\tmovl 0xac(%%ebx),%%ecx\n"); /* Ecx */
output( "\tmovl 0xa4(%%ebx),%%ebx\n"); /* Ebx */
output( "\tpopl %%ds\n" );
output( "\tpopfl\n" );
output( "\tlret\n" );
output_function_size( "__wine_call_from_16_regs" );
}
else
{
/* Switch stack back */
output( "\t.byte 0x64\n\tmovw (%d), %%ss\n", STACKOFFSET+2 );
output( "\t.byte 0x64\n\tmovzwl (%d), %%esp\n", STACKOFFSET );
output( "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
/* Restore registers */
output( "\tpopl %%edx\n" );
output( "\tpopl %%ecx\n" );
output( "\tpopl %%ebp\n" );
output( "\tpopw %%ds\n" );
output( "\tpopw %%es\n" );
output( "\tpopw %%fs\n" );
output( "\tpopw %%gs\n" );
/* Return to return stub which will return to caller */
output( "\tlret $12\n" );
output_function_size( "__wine_call_from_16" );
}
}
/*******************************************************************
* output_relay_debug
*
* Output entry points for relay debugging
*/
static void output_relay_debug( DLLSPEC *spec )
{
int i, j;
unsigned int pos, args, flags;
/* 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 .L__wine_spec_relay_entry_point_%d-__wine_spec_relay_entry_points\n", i );
else
output( "\t.long 0\n" );
}
/* then the table of argument types */
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_arg_types:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
unsigned int mask = 0;
if (needs_relay( odp ))
{
for (j = pos = 0; pos < 16 && j < odp->u.func.nb_args; j++)
{
switch (odp->u.func.args[j])
{
case ARG_STR: mask |= 1 << (2 * pos++); break;
case ARG_WSTR: mask |= 2 << (2 * pos++); break;
case ARG_INT64:
case ARG_DOUBLE: pos += 8 / get_ptr_size(); break;
case ARG_INT128: pos += (target_cpu == CPU_x86) ? 4 : 1; break;
default: pos++; break;
}
}
}
output( "\t.long 0x%08x\n", mask );
}
/* then the relay thunks */
output( "\t.text\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;
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_entry_point_%d:\n", i );
output_cfi( ".cfi_startproc" );
args = get_args_size(odp) / get_ptr_size();
flags = 0;
switch (target_cpu)
{
case CPU_x86:
if (odp->type == TYPE_THISCALL) /* add the this pointer */
{
output( "\tpopl %%eax\n" );
output( "\tpushl %%ecx\n" );
output( "\tpushl %%eax\n" );
flags |= 2;
}
if (odp->flags & FLAG_REGISTER)
output( "\tpushl %%eax\n" );
else
output( "\tpushl %%esp\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
if (odp->flags & FLAG_RET64) flags |= 1;
output( "\tpushl $%u\n", (flags << 24) | (args << 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" );
}
else output( "\tmovl $.L__wine_spec_relay_descr,%%eax\n" );
output( "\tpushl %%eax\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
if (odp->flags & FLAG_REGISTER)
{
output( "\tcall *8(%%eax)\n" );
}
else
{
output( "\tcall *4(%%eax)\n" );
output_cfi( ".cfi_adjust_cfa_offset -12" );
if (odp->type == TYPE_STDCALL || odp->type == TYPE_THISCALL)
output( "\tret $%u\n", args * get_ptr_size() );
else
output( "\tret\n" );
}
break;
case CPU_x86_64:
output( "\tsubq $40,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset 40" );
switch (args)
{
default: output( "\tmovq %%%s,72(%%rsp)\n", is_float_arg( odp, 3 ) ? "xmm3" : "r9" );
/* fall through */
case 3: output( "\tmovq %%%s,64(%%rsp)\n", is_float_arg( odp, 2 ) ? "xmm2" : "r8" );
/* fall through */
case 2: output( "\tmovq %%%s,56(%%rsp)\n", is_float_arg( odp, 1 ) ? "xmm1" : "rdx" );
/* fall through */
case 1: output( "\tmovq %%%s,48(%%rsp)\n", is_float_arg( odp, 0 ) ? "xmm0" : "rcx" );
/* fall through */
case 0: break;
}
output( "\tleaq 40(%%rsp),%%r8\n" );
output( "\tmovq $%u,%%rdx\n", (flags << 24) | (args << 16) | (i - spec->base) );
output( "\tleaq .L__wine_spec_relay_descr(%%rip),%%rcx\n" );
output( "\tcallq *8(%%rcx)\n" );
output( "\taddq $40,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset -40" );
output( "\tret\n" );
break;
default:
assert(0);
}
output_cfi( ".cfi_endproc" );
}
}
/* output a single import thunk */
static void output_import_thunk( const char *name, const char *table, int pos )
{
output( "\n\t.align %d\n", get_alignment(4) );
output( "\t%s\n", func_declaration(name) );
output( "%s\n", asm_globl(name) );
output_cfi( ".cfi_startproc" );
switch(target_cpu)
{
case CPU_x86:
if (!UsePIC)
{
output( "\tjmp *(%s+%d)\n", table, pos );
}
else
{
output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
output( "1:\tjmp *%s+%d-1b(%%eax)\n", table, pos );
}
break;
case CPU_x86_64:
output( "\tjmpq *%s+%d(%%rip)\n", table, pos );
break;
case CPU_SPARC:
if ( !UsePIC )
{
output( "\tsethi %%hi(%s+%d), %%g1\n", table, pos );
output( "\tld [%%g1+%%lo(%s+%d)], %%g1\n", table, pos );
output( "\tjmp %%g1\n" );
output( "\tnop\n" );
}
else
{
/* Hmpf. Stupid sparc assembler always interprets global variable
names as GOT offsets, so we have to do it the long way ... */
output( "\tsave %%sp, -96, %%sp\n" );
output( "0:\tcall 1f\n" );
output( "\tnop\n" );
output( "1:\tsethi %%hi(%s+%d-0b), %%g1\n", table, pos );
output( "\tor %%g1, %%lo(%s+%d-0b), %%g1\n", table, pos );
output( "\tld [%%g1+%%o7], %%g1\n" );
output( "\tjmp %%g1\n" );
output( "\trestore\n" );
}
break;
case CPU_ARM:
output( "\tldr IP,[PC,#0]\n");
output( "\tldr PC,[IP,#%d]\n", pos);
output( "\t.long %s\n", table );
break;
case CPU_ARM64:
output( "\tadr x9, 1f\n" );
output( "\tldur x9, [x9, #0]\n" );
if (pos & 0xf000) output( "\tadd x9, x9, #%u\n", pos & 0xf000 );
if (pos & 0x0f00) output( "\tadd x9, x9, #%u\n", pos & 0x0f00 );
if (pos & 0x00f0) output( "\tadd x9, x9, #%u\n", pos & 0x00f0 );
if (pos & 0x000f) output( "\tadd x9, x9, #%u\n", pos & 0x000f );
output( "\tldur x9, [x9, #0]\n" );
output( "\tbr x9\n" );
output( "1:\t.quad %s\n", table );
break;
case CPU_POWERPC:
output( "\tmr %s, %s\n", ppc_reg(0), ppc_reg(31) );
if (target_platform == PLATFORM_APPLE)
{
output( "\tlis %s, ha16(%s+%d+32768)\n", ppc_reg(31), table, pos );
output( "\tla %s, lo16(%s+%d)(%s)\n", ppc_reg(31), table, pos, ppc_reg(31) );
}
else
{
output( "\tlis %s, (%s+%d+32768)@h\n", ppc_reg(31), table, pos );
output( "\tla %s, (%s+%d)@l(%s)\n", ppc_reg(31), table, pos, ppc_reg(31) );
}
output( "\tlwz %s, 0(%s)\n", ppc_reg(31), ppc_reg(31) );
output( "\tmtctr %s\n", ppc_reg(31) );
output( "\tmr %s, %s\n", ppc_reg(31), ppc_reg(0) );
output( "\tbctr\n" );
break;
}
output_cfi( ".cfi_endproc" );
output_function_size( name );
}
/*******************************************************************
* output_relay_debug
*
* Output entry points for relay debugging
*/
static void output_relay_debug( DLLSPEC *spec )
{
int i;
unsigned int j, args, flags;
/* 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 .L__wine_spec_relay_entry_point_%d-__wine_spec_relay_entry_points\n", i );
else
output( "\t.long 0\n" );
}
/* then the table of argument types */
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_arg_types:\n" );
for (i = spec->base; i <= spec->limit; i++)
{
ORDDEF *odp = spec->ordinals[i];
unsigned int mask = 0;
if (needs_relay( odp ))
{
for (j = 0; j < 16 && odp->u.func.arg_types[j]; j++)
{
if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
}
}
output( "\t.long 0x%08x\n", mask );
}
/* then the relay thunks */
output( "\t.text\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;
output( "\t.align %d\n", get_alignment(4) );
output( ".L__wine_spec_relay_entry_point_%d:\n", i );
args = strlen(odp->u.func.arg_types);
flags = 0;
switch (target_cpu)
{
case CPU_x86:
if (odp->flags & FLAG_REGISTER)
output( "\tpushl %%eax\n" );
else
output( "\tpushl %%esp\n" );
if (odp->flags & FLAG_RET64) flags |= 1;
output( "\tpushl $%u\n", (flags << 24) | (args << 16) | (i - spec->base) );
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" );
}
else output( "\tmovl $.L__wine_spec_relay_descr,%%eax\n" );
output( "\tpushl %%eax\n" );
if (odp->flags & FLAG_REGISTER)
{
output( "\tcall *8(%%eax)\n" );
}
else
{
output( "\tcall *4(%%eax)\n" );
if (odp->type == TYPE_STDCALL)
output( "\tret $%u\n", args * get_ptr_size() );
else
output( "\tret\n" );
}
break;
case CPU_x86_64:
output( "\tmovq %%rcx,8(%%rsp)\n" );
output( "\tmovq %%rdx,16(%%rsp)\n" );
output( "\tmovq %%r8,24(%%rsp)\n" );
output( "\tmovq %%r9,32(%%rsp)\n" );
output( "\tmovq %%rsp,%%r8\n" );
output( "\tmovq $%u,%%rdx\n", (flags << 24) | (args << 16) | (i - spec->base) );
output( "\tleaq .L__wine_spec_relay_descr(%%rip),%%rcx\n" );
output( "\tsubq $40,%%rsp\n" );
output( "\tcallq *%u(%%rcx)\n", (odp->flags & FLAG_REGISTER) ? 16 : 8 );
output( "\taddq $40,%%rsp\n" );
output( "\tret\n" );
break;
default:
assert(0);
}
}
}
/* output the delayed import thunks of a Win32 module */
static void output_delayed_import_thunks( const DLLSPEC *spec )
{
int i, idx, j, pos, extra_stack_storage = 0;
static const char delayed_import_loaders[] = "__wine_spec_delayed_import_loaders";
static const char delayed_import_thunks[] = "__wine_spec_delayed_import_thunks";
if (!nb_delayed) return;
output( "\n/* delayed import thunks */\n\n" );
output( "\t.text\n" );
output( "\t.align %d\n", get_alignment(8) );
output( "%s:\n", asm_name(delayed_import_loaders));
output( "\t%s\n", func_declaration("__wine_delay_load_asm") );
output( "%s:\n", asm_name("__wine_delay_load_asm") );
output_cfi( ".cfi_startproc" );
switch(target_cpu)
{
case CPU_x86:
output( "\tpushl %%ecx\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tpushl %%edx\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tpushl %%eax\n" );
output_cfi( ".cfi_adjust_cfa_offset 4" );
output( "\tcall %s\n", asm_name("__wine_spec_delay_load") );
output_cfi( ".cfi_adjust_cfa_offset -4" );
output( "\tpopl %%edx\n" );
output_cfi( ".cfi_adjust_cfa_offset -4" );
output( "\tpopl %%ecx\n" );
output_cfi( ".cfi_adjust_cfa_offset -4" );
output( "\tjmp *%%eax\n" );
break;
case CPU_x86_64:
output( "\tsubq $88,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset 88" );
output( "\tmovq %%rdx,80(%%rsp)\n" );
output( "\tmovq %%rcx,72(%%rsp)\n" );
output( "\tmovq %%r8,64(%%rsp)\n" );
output( "\tmovq %%r9,56(%%rsp)\n" );
output( "\tmovq %%r10,48(%%rsp)\n" );
output( "\tmovq %%r11,40(%%rsp)\n" );
output( "\tmovq %%rax,%%rcx\n" );
output( "\tcall %s\n", asm_name("__wine_spec_delay_load") );
output( "\tmovq 40(%%rsp),%%r11\n" );
output( "\tmovq 48(%%rsp),%%r10\n" );
output( "\tmovq 56(%%rsp),%%r9\n" );
output( "\tmovq 64(%%rsp),%%r8\n" );
output( "\tmovq 72(%%rsp),%%rcx\n" );
output( "\tmovq 80(%%rsp),%%rdx\n" );
output( "\taddq $88,%%rsp\n" );
output_cfi( ".cfi_adjust_cfa_offset -88" );
output( "\tjmp *%%rax\n" );
break;
case CPU_SPARC:
output( "\tsave %%sp, -96, %%sp\n" );
output( "\tcall %s\n", asm_name("__wine_spec_delay_load") );
output( "\tmov %%g1, %%o0\n" );
output( "\tjmp %%o0\n" );
output( "\trestore\n" );
break;
case CPU_ARM:
output( "\tstmfd SP!, {r4-r10,FP,LR}\n" );
output( "\tmov LR,PC\n");
output( "\tadd LR,LR,#8\n");
output( "\tldr PC,[PC,#-4]\n");
output( "\t.long %s\n", asm_name("__wine_spec_delay_load") );
output( "\tmov IP,r0\n");
output( "\tldmfd SP!, {r4-r10,FP,LR}\n" );
output( "\tldmfd SP!, {r0-r3}\n" );
output( "\tmov PC,IP\n");
break;
case CPU_ARM64:
output( "\tstp x29, x30, [sp,#-16]!\n" );
output( "\tmov x29, sp\n" );
output( "\tadr x9, 1f\n" );
output( "\tldur x9, [x9, #0]\n" );
output( "\tblr x9\n" );
output( "\tmov x9, x0\n" );
output( "\tldp x29, x30, [sp],#16\n" );
output( "\tldp x0, x1, [sp,#16]\n" );
output( "\tldp x2, x3, [sp,#32]\n" );
output( "\tldp x4, x5, [sp,#48]\n" );
output( "\tldp x6, x7, [sp],#80\n" );
output( "\tbr x9\n" ); /* or "ret x9" */
output( "1:\t.quad %s\n", asm_name("__wine_spec_delay_load") );
break;
case CPU_POWERPC:
if (target_platform == PLATFORM_APPLE) extra_stack_storage = 56;
/* Save all callee saved registers into a stackframe. */
output( "\tstwu %s, -%d(%s)\n",ppc_reg(1), 48+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1));
output( "\tstw %s, %d(%s)\n", ppc_reg(12),40+extra_stack_storage, ppc_reg(1));
/* r0 -> r3 (arg1) */
output( "\tmr %s, %s\n", ppc_reg(3), ppc_reg(0));
/* save return address */
output( "\tmflr %s\n", ppc_reg(0));
output( "\tstw %s, %d(%s)\n", ppc_reg(0), 44+extra_stack_storage, ppc_reg(1));
/* Call the __wine_delay_load function, arg1 is arg1. */
output( "\tbl %s\n", asm_name("__wine_spec_delay_load") );
/* Load return value from call into ctr register */
output( "\tmtctr %s\n", ppc_reg(3));
/* restore all saved registers and drop stackframe. */
output( "\tlwz %s, %d(%s)\n", ppc_reg(3), 4+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(4), 8+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(5), 12+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(6), 16+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(7), 20+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(8), 24+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(9), 28+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(10),32+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(11),36+extra_stack_storage, ppc_reg(1));
output( "\tlwz %s, %d(%s)\n", ppc_reg(12),40+extra_stack_storage, ppc_reg(1));
/* Load return value from call into return register */
output( "\tlwz %s, %d(%s)\n", ppc_reg(0), 44+extra_stack_storage, ppc_reg(1));
output( "\tmtlr %s\n", ppc_reg(0));
output( "\taddi %s, %s, %d\n", ppc_reg(1), ppc_reg(1), 48+extra_stack_storage);
/* branch to ctr register. */
output( "\tbctr\n");
break;
}
output_cfi( ".cfi_endproc" );
output_function_size( "__wine_delay_load_asm" );
output( "\n" );
for (i = idx = 0; i < nb_imports; i++)
{
if (!dll_imports[i]->delay) continue;
for (j = 0; j < dll_imports[i]->nb_imports; j++)
{
ORDDEF *odp = dll_imports[i]->imports[j];
const char *name = odp->name ? odp->name : odp->export_name;
output( ".L__wine_delay_imp_%d_%s:\n", i, name );
output_cfi( ".cfi_startproc" );
switch(target_cpu)
{
case CPU_x86:
output( "\tmovl $%d, %%eax\n", (idx << 16) | j );
output( "\tjmp %s\n", asm_name("__wine_delay_load_asm") );
break;
case CPU_x86_64:
output( "\tmovq $%d,%%rax\n", (idx << 16) | j );
output( "\tjmp %s\n", asm_name("__wine_delay_load_asm") );
break;
case CPU_SPARC:
output( "\tset %d, %%g1\n", (idx << 16) | j );
output( "\tb,a %s\n", asm_name("__wine_delay_load_asm") );
output( "\tnop\n" );
break;
case CPU_ARM:
output( "\tstmfd SP!, {r0-r3}\n" );
output( "\tmov r0, #%d\n", idx );
output( "\tmov r1, #16384\n" );
output( "\tmul r1, r0, r1\n" );
output( "\tmov r0, r1\n" );
output( "\tmov r1, #4\n" );
output( "\tmul r1, r0, r1\n" );
output( "\tmov r0, r1\n" );
output( "\tadd r0, #%d\n", j );
output( "\tldr PC,[PC,#-4]\n");
output( "\t.long %s\n", asm_name("__wine_delay_load_asm") );
break;
case CPU_ARM64:
output( "\tstp x6, x7, [sp,#-80]!\n" );
output( "\tstp x4, x5, [sp,#48]\n" );
output( "\tstp x2, x3, [sp,#32]\n" );
output( "\tstp x0, x1, [sp,#16]\n" );
output( "\tmov x0, #%d\n", idx );
output( "\tmov x1, #16384\n" );
output( "\tmul x1, x0, x1\n" );
output( "\tmov x0, x1\n" );
output( "\tmov x1, #4\n" );
output( "\tmul x1, x0, x1\n" );
output( "\tmov x0, x1\n" );
output( "\tadd x0, x0, #%d\n", j );
output( "\tadr x9, 1f\n" );
output( "\tldur x9, [x9, #0]\n" );
output( "\tbr x9\n" );
output( "1:\t.quad %s\n", asm_name("__wine_delay_load_asm") );
break;
case CPU_POWERPC:
switch(target_platform)
{
case PLATFORM_APPLE:
/* On Darwin we can use r0 and r2 */
/* Upper part in r2 */
output( "\tlis %s, %d\n", ppc_reg(2), idx);
/* Lower part + r2 -> r0, Note we can't use r0 directly */
output( "\taddi %s, %s, %d\n", ppc_reg(0), ppc_reg(2), j);
output( "\tb %s\n", asm_name("__wine_delay_load_asm") );
break;
default:
/* On linux we can't use r2 since r2 is not a scratch register (hold the TOC) */
/* Save r13 on the stack */
output( "\taddi %s, %s, -0x4\n", ppc_reg(1), ppc_reg(1));
output( "\tstw %s, 0(%s)\n", ppc_reg(13), ppc_reg(1));
/* Upper part in r13 */
output( "\tlis %s, %d\n", ppc_reg(13), idx);
/* Lower part + r13 -> r0, Note we can't use r0 directly */
output( "\taddi %s, %s, %d\n", ppc_reg(0), ppc_reg(13), j);
/* Restore r13 */
output( "\tstw %s, 0(%s)\n", ppc_reg(13), ppc_reg(1));
output( "\taddic %s, %s, 0x4\n", ppc_reg(1), ppc_reg(1));
output( "\tb %s\n", asm_name("__wine_delay_load_asm") );
break;
}
break;
}
output_cfi( ".cfi_endproc" );
}
idx++;
}
output_function_size( delayed_import_loaders );
output( "\n\t.align %d\n", get_alignment(get_ptr_size()) );
output( "%s:\n", asm_name(delayed_import_thunks));
for (i = pos = 0; i < nb_imports; i++)
{
if (!dll_imports[i]->delay) continue;
for (j = 0; j < dll_imports[i]->nb_imports; j++, pos += get_ptr_size())
{
ORDDEF *odp = dll_imports[i]->imports[j];
output_import_thunk( odp->name ? odp->name : odp->export_name,
".L__wine_delay_IAT", pos );
}
}
output_function_size( delayed_import_thunks );
}
/*******************************************************************
* output_module
*
* Output the module data.
*/
void output_module( DLLSPEC *spec )
{
int machine = 0;
unsigned int page_size = get_page_size();
/* Reserve some space for the PE header */
switch (target_platform)
{
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:
output( "\n\t.section \".init\",\"ax\"\n" );
switch(target_cpu)
{
case CPU_x86:
case CPU_x86_64:
case CPU_SPARC:
output( "\tjmp 1f\n" );
break;
case CPU_ARM:
case CPU_POWERPC:
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( "%s\n", asm_globl("__wine_spec_nt_header") );
output( ".L__wine_spec_rva_base:\n" );
output( "\t.long 0x4550\n" ); /* Signature */
switch(target_cpu)
{
case CPU_x86: machine = IMAGE_FILE_MACHINE_I386; break;
case CPU_x86_64: machine = IMAGE_FILE_MACHINE_AMD64; break;
case CPU_ARM: machine = IMAGE_FILE_MACHINE_ARMV7; break;
case CPU_POWERPC: machine = IMAGE_FILE_MACHINE_POWERPC; break;
case CPU_SPARC: machine = IMAGE_FILE_MACHINE_SPARC; break;
}
output( "\t%s 0x%04x\n", /* Machine */
get_asm_short_keyword(), machine );
output( "\t%s 0\n", /* NumberOfSections */
get_asm_short_keyword() );
output( "\t.long 0\n" ); /* TimeDateStamp */
output( "\t.long 0\n" ); /* PointerToSymbolTable */
output( "\t.long 0\n" ); /* NumberOfSymbols */
output( "\t%s %d\n", /* SizeOfOptionalHeader */
get_asm_short_keyword(),
get_ptr_size() == 8 ? IMAGE_SIZEOF_NT_OPTIONAL64_HEADER : IMAGE_SIZEOF_NT_OPTIONAL32_HEADER );
output( "\t%s 0x%04x\n", /* Characteristics */
get_asm_short_keyword(), spec->characteristics );
output( "\t%s 0x%04x\n", /* Magic */
get_asm_short_keyword(),
get_ptr_size() == 8 ? IMAGE_NT_OPTIONAL_HDR64_MAGIC : IMAGE_NT_OPTIONAL_HDR32_MAGIC );
output( "\t.byte 0\n" ); /* MajorLinkerVersion */
output( "\t.byte 0\n" ); /* MinorLinkerVersion */
output( "\t.long 0\n" ); /* SizeOfCode */
output( "\t.long 0\n" ); /* SizeOfInitializedData */
output( "\t.long 0\n" ); /* SizeOfUninitializedData */
/* 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%s 1,0\n", /* Major/MinorOperatingSystemVersion */
get_asm_short_keyword() );
output( "\t%s 0,0\n", /* Major/MinorImageVersion */
get_asm_short_keyword() );
output( "\t%s %u,%u\n", /* Major/MinorSubsystemVersion */
get_asm_short_keyword(), spec->subsystem_major, spec->subsystem_minor );
output( "\t.long 0\n" ); /* Win32VersionValue */
output( "\t.long %s-.L__wine_spec_rva_base\n", /* SizeOfImage */
asm_name("_end") );
output( "\t.long %u\n", page_size ); /* SizeOfHeaders */
output( "\t.long 0\n" ); /* CheckSum */
output( "\t%s 0x%04x\n", /* Subsystem */
get_asm_short_keyword(), spec->subsystem );
output( "\t%s 0x%04x\n", /* DllCharacteristics */
get_asm_short_keyword(), 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 (spec->base <= spec->limit) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT] */
output( "\t.long .L__wine_spec_exports-.L__wine_spec_rva_base,"
".L__wine_spec_exports_end-.L__wine_spec_exports\n" );
else
output( "\t.long 0,0\n" );
if (has_imports()) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT] */
output( "\t.long .L__wine_spec_imports-.L__wine_spec_rva_base,"
".L__wine_spec_imports_end-.L__wine_spec_imports\n" );
else
output( "\t.long 0,0\n" );
if (spec->nb_resources) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE] */
output( "\t.long .L__wine_spec_resources-.L__wine_spec_rva_base,"
".L__wine_spec_resources_end-.L__wine_spec_resources\n" );
else
output( "\t.long 0,0\n" );
output( "\t.long 0,0\n" ); /* DataDirectory[3] */
output( "\t.long 0,0\n" ); /* DataDirectory[4] */
output( "\t.long 0,0\n" ); /* DataDirectory[5] */
output( "\t.long 0,0\n" ); /* DataDirectory[6] */
output( "\t.long 0,0\n" ); /* DataDirectory[7] */
output( "\t.long 0,0\n" ); /* DataDirectory[8] */
output( "\t.long 0,0\n" ); /* DataDirectory[9] */
output( "\t.long 0,0\n" ); /* DataDirectory[10] */
output( "\t.long 0,0\n" ); /* DataDirectory[11] */
output( "\t.long 0,0\n" ); /* DataDirectory[12] */
output( "\t.long 0,0\n" ); /* DataDirectory[13] */
output( "\t.long 0,0\n" ); /* DataDirectory[14] */
output( "\t.long 0,0\n" ); /* DataDirectory[15] */
output( "\n\t%s\n", get_asm_string_section() );
output( "%s\n", asm_globl("__wine_spec_file_name") );
output( ".L__wine_spec_file_name:\n" );
output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
if (target_platform == PLATFORM_APPLE)
output( "\t.lcomm %s,4\n", asm_name("_end") );
output_asm_constructor( "__wine_spec_init_ctor" );
}
