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Sweden-Number/relay32/relay386.c

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/*
* 386-specific Win32 relay functions
*
* Copyright 1997 Alexandre Julliard
*/
#include <assert.h>
#include <string.h>
#include "winnt.h"
#include "builtin32.h"
#include "selectors.h"
#include "stackframe.h"
#include "syslevel.h"
#include "debugstr.h"
#include "main.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(relay)
char **debug_relay_excludelist = NULL, **debug_relay_includelist = NULL;
/***********************************************************************
* RELAY_ShowDebugmsgRelay
*
* Simple function to decide if a particular debugging message is
* wanted. Called from RELAY_CallFrom32 and from in if1632/relay.c
*/
int RELAY_ShowDebugmsgRelay(const char *func) {
if(debug_relay_excludelist || debug_relay_includelist) {
const char *term = strchr(func, ':');
char **listitem;
int len, len2, itemlen, show;
if(debug_relay_excludelist) {
show = 1;
listitem = debug_relay_excludelist;
} else {
show = 0;
listitem = debug_relay_includelist;
}
assert(term);
assert(strlen(term) > 2);
len = term - func;
len2 = strchr(func, '.') - func;
assert(len2 && len2 > 0 && len2 < 64);
term += 2;
for(; *listitem; listitem++) {
itemlen = strlen(*listitem);
if((itemlen == len && !lstrncmpiA(*listitem, func, len)) ||
(itemlen == len2 && !lstrncmpiA(*listitem, func, len2)) ||
!lstrcmpiA(*listitem, term)) {
show = !show;
break;
}
}
return show;
}
return 1;
}
#ifdef __i386__
/***********************************************************************
* RELAY_PrintArgs
*/
static inline void RELAY_PrintArgs( int *args, int nb_args, unsigned int typemask )
{
while (nb_args--)
{
if ((typemask & 3) && HIWORD(*args))
{
if (typemask & 2)
DPRINTF( "%08x %s", *args, debugstr_w((LPWSTR)*args) );
else
DPRINTF( "%08x %s", *args, debugstr_a((LPCSTR)*args) );
}
else DPRINTF( "%08x", *args );
if (nb_args) DPRINTF( "," );
args++;
typemask >>= 2;
}
}
/***********************************************************************
* RELAY_CallFrom32
*
* Stack layout on entry to this function:
* ... ...
* (esp+12) arg2
* (esp+8) arg1
* (esp+4) ret_addr
* (esp) return addr to relay code
*/
int RELAY_CallFrom32( int ret_addr, ... )
{
int ret;
char buffer[80];
unsigned int typemask;
FARPROC func;
WORD fs;
int *args = &ret_addr + 1;
/* Relay addr is the return address for this function */
BYTE *relay_addr = (BYTE *)__builtin_return_address(0);
WORD nb_args = *(WORD *)(relay_addr + 1) / sizeof(int);
assert(TRACE_ON(relay));
func = (FARPROC)BUILTIN32_GetEntryPoint( buffer, relay_addr - 5, &typemask );
DPRINTF( "Call %s(", buffer );
RELAY_PrintArgs( args, nb_args, typemask );
GET_FS( fs );
DPRINTF( ") ret=%08x fs=%04x\n", ret_addr, fs );
SYSLEVEL_CheckNotLevel( 2 );
if (*relay_addr == 0xc3) /* cdecl */
{
LRESULT (*cfunc)() = (LRESULT(*)())func;
switch(nb_args)
{
case 0: ret = cfunc(); break;
case 1: ret = cfunc(args[0]); break;
case 2: ret = cfunc(args[0],args[1]); break;
case 3: ret = cfunc(args[0],args[1],args[2]); break;
case 4: ret = cfunc(args[0],args[1],args[2],args[3]); break;
case 5: ret = cfunc(args[0],args[1],args[2],args[3],args[4]); break;
case 6: ret = cfunc(args[0],args[1],args[2],args[3],args[4],
args[5]); break;
case 7: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6]); break;
case 8: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7]); break;
case 9: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8]); break;
case 10: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9]); break;
case 11: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10]); break;
case 12: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],
args[11]); break;
case 13: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12]); break;
case 14: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12],args[13]); break;
case 15: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12],args[13],args[14]); break;
case 16: ret = cfunc(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12],args[13],args[14],args[15]); break;
default:
ERR( "Unsupported nb of args %d\n", nb_args );
assert(FALSE);
}
}
else /* stdcall */
{
switch(nb_args)
{
case 0: ret = func(); break;
case 1: ret = func(args[0]); break;
case 2: ret = func(args[0],args[1]); break;
case 3: ret = func(args[0],args[1],args[2]); break;
case 4: ret = func(args[0],args[1],args[2],args[3]); break;
case 5: ret = func(args[0],args[1],args[2],args[3],args[4]); break;
case 6: ret = func(args[0],args[1],args[2],args[3],args[4],
args[5]); break;
case 7: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6]); break;
case 8: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7]); break;
case 9: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8]); break;
case 10: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9]); break;
case 11: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10]); break;
case 12: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],
args[11]); break;
case 13: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12]); break;
case 14: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12],args[13]); break;
case 15: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12],args[13],args[14]); break;
case 16: ret = func(args[0],args[1],args[2],args[3],args[4],args[5],
args[6],args[7],args[8],args[9],args[10],args[11],
args[12],args[13],args[14],args[15]); break;
default:
ERR( "Unsupported nb of args %d\n", nb_args );
assert(FALSE);
}
}
DPRINTF( "Ret %s() retval=%08x ret=%08x fs=%04x\n",
buffer, ret, ret_addr, fs );
SYSLEVEL_CheckNotLevel( 2 );
return ret;
}
/***********************************************************************
* RELAY_CallFrom32Regs
*
* Stack layout (esp is ESP_reg(context), not the current %esp):
*
* ...
* (esp+4) first arg
* (esp) return addr to caller
* (esp-4) return addr to DEBUG_ENTRY_POINT
* (esp-8) ptr to relay entry code for RELAY_CallFrom32Regs
* ... >128 bytes space free to be modified (ensured by the assembly glue)
*/
void WINAPI RELAY_DoCallFrom32Regs( CONTEXT86 *context );
DEFINE_REGS_ENTRYPOINT_0( RELAY_CallFrom32Regs, RELAY_DoCallFrom32Regs )
void WINAPI RELAY_DoCallFrom32Regs( CONTEXT86 *context )
{
unsigned int typemask;
char buffer[80];
int* args;
FARPROC func;
BYTE *entry_point;
BYTE *relay_addr = *((BYTE **)ESP_reg(context) - 1);
WORD nb_args = *(WORD *)(relay_addr + 1) / sizeof(int);
/* remove extra stuff from the stack */
EIP_reg(context) = stack32_pop(context);
args = (int *)ESP_reg(context);
ESP_reg(context) += 4 * nb_args;
assert(TRACE_ON(relay));
entry_point = (BYTE *)BUILTIN32_GetEntryPoint( buffer, relay_addr - 5, &typemask );
assert( *entry_point == 0xe8 /* lcall */ );
func = *(FARPROC *)(entry_point + 5);
DPRINTF( "Call %s(", buffer );
RELAY_PrintArgs( args, nb_args, typemask );
DPRINTF( ") ret=%08lx fs=%04lx\n", EIP_reg(context), FS_reg(context) );
DPRINTF(" eax=%08lx ebx=%08lx ecx=%08lx edx=%08lx esi=%08lx edi=%08lx\n",
EAX_reg(context), EBX_reg(context), ECX_reg(context),
EDX_reg(context), ESI_reg(context), EDI_reg(context) );
DPRINTF(" ebp=%08lx esp=%08lx ds=%04lx es=%04lx gs=%04lx flags=%08lx\n",
EBP_reg(context), ESP_reg(context), DS_reg(context),
ES_reg(context), GS_reg(context), EFL_reg(context) );
SYSLEVEL_CheckNotLevel( 2 );
/* Now call the real function */
switch(nb_args)
{
case 0: func(context); break;
case 1: func(args[0],context); break;
case 2: func(args[0],args[1],context); break;
case 3: func(args[0],args[1],args[2],context); break;
case 4: func(args[0],args[1],args[2],args[3],context); break;
case 5: func(args[0],args[1],args[2],args[3],args[4],context); break;
case 6: func(args[0],args[1],args[2],args[3],args[4],args[5],context); break;
case 7: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],context); break;
case 8: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],context); break;
case 9: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],
context); break;
case 10: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],
args[9],context); break;
case 11: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],
args[9],args[10],context); break;
case 12: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],
args[9],args[10],args[11],context); break;
case 13: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],
args[9],args[10],args[11],args[12],context); break;
case 14: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],
args[9],args[10],args[11],args[12],args[13],context); break;
case 15: func(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],
args[9],args[10],args[11],args[12],args[13],args[14],context); break;
case 16: func(args[0],args[1],args[2],args[3],args[4],args[5], args[6],args[7],args[8],
args[9],args[10],args[11],args[12],args[13],args[14],args[15],context); break;
default:
ERR( "Unsupported nb of args %d\n", nb_args );
assert(FALSE);
}
DPRINTF( "Ret %s() retval=%08lx ret=%08lx fs=%04lx\n",
buffer, EAX_reg(context), EIP_reg(context), FS_reg(context) );
DPRINTF(" eax=%08lx ebx=%08lx ecx=%08lx edx=%08lx esi=%08lx edi=%08lx\n",
EAX_reg(context), EBX_reg(context), ECX_reg(context),
EDX_reg(context), ESI_reg(context), EDI_reg(context) );
DPRINTF(" ebp=%08lx esp=%08lx ds=%04lx es=%04lx gs=%04lx flags=%08lx\n",
EBP_reg(context), ESP_reg(context), DS_reg(context),
ES_reg(context), GS_reg(context), EFL_reg(context) );
SYSLEVEL_CheckNotLevel( 2 );
}
#endif /* __i386__ */
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