static aux_info *InfoLookup( SYMPTR sym )
{
char *name;
aux_info *inf;
aux_entry *ent;
name = sym->name;
inf = &DefaultInfo; /* assume default */
if( name == NULL )
return( inf );
ent = AuxLookup( name );
if( ent != NULL )
inf = ent->info;
if( ( ent == NULL ) || (sym->flags & SYM_INTRINSIC) ) {
if( sym->flags & SYM_DEFINED )
return( inf );
if( (sym->flags & SYM_INTRINSIC) == 0 ) {
if( memcmp( name, "_inline_", 8 ) != 0 )
return( inf );
name += 8;
}
#if ( _CPU == 8086 ) || ( _CPU == 386 )
{
const inline_funcs *ifunc;
ifunc = IF_Lookup( name );
if( ifunc == NULL )
return( inf );
#if ( _CPU == 8086 )
if( HW_CEqual( ifunc->returns, HW_DX_AX )
|| HW_CEqual( ifunc->returns, HW_DS_SI )
|| HW_CEqual( ifunc->returns, HW_ES_DI )
|| HW_CEqual( ifunc->returns, HW_CX_DI ) ) {
if( SizeOfArg( sym->sym_type->object ) != 4 ) {
#else
if( HW_CEqual( ifunc->returns, HW_DX_AX )
|| HW_CEqual( ifunc->returns, HW_DS_ESI )
|| HW_CEqual( ifunc->returns, HW_ES_EDI )
|| HW_CEqual( ifunc->returns, HW_CX_DI ) ) {
if( SizeOfArg( sym->sym_type->object ) != 6 ) {
#endif
return( inf );
}
}
inf = &InlineInfo;
inf->cclass = (WatcallInfo.cclass & FAR_CALL) | MODIFY_EXACT;
if( (sym->flags & SYM_INTRINSIC) && ( ent != NULL ) )
inf->cclass |= ent->info->cclass;
inf->code = ifunc->code;
inf->parms = ifunc->parms;
inf->returns = ifunc->returns;
#if ( _CPU == 8086 )
if( !HW_CEqual( inf->returns, HW_AX )
&& !HW_CEqual( inf->returns, HW_EMPTY ) ) {
#else
if( !HW_CEqual( inf->returns, HW_EAX )
&& !HW_CEqual( inf->returns, HW_EMPTY ) ) {
#endif
inf->cclass |= SPECIAL_RETURN;
}
HW_CAsgn( inf->streturn, HW_EMPTY );
inf->save = ifunc->save;
inf->objname = WatcallInfo.objname;
inf->use = 1;
}
#endif
}
return( inf );
}
aux_info *FindInfo( SYMPTR sym, SYM_HANDLE sym_handle )
{
SYM_ENTRY sym_typedef;
aux_entry *ent;
TYPEPTR typ;
aux_info *inf;
inf = &DefaultInfo; /* assume default */
if( sym_handle == SYM_NULL )
return( inf );
SymGet( sym, sym_handle );
#if _CPU == 386
if( (sym_handle == SymSTOSB) || (sym_handle == SymSTOSD) ) {
return( &STOSBInfo );
} else if( sym_handle == SymFinally ) {
InlineInfo = WatcallInfo;
InlineInfo.code = (byte_seq *)&FinallyCode;
return( &InlineInfo );
} else if( sym_handle == SymTryFini ) {
InlineInfo = WatcallInfo;
InlineInfo.parms = TryFiniParms;
InlineInfo.code = (byte_seq *)&TryFiniCode;
return( &InlineInfo );
}
#endif
if( (sym->flags & SYM_TEMP) == 0 ) {
/* not an indirect func call*/
inf = InfoLookup( sym );
}
if( inf == &DefaultInfo ) {
typ = sym->sym_type;
SKIP_DUMMY_TYPEDEFS( typ );
if( typ->decl_type == TYPE_TYPEDEF ) {
SymGet( &sym_typedef, typ->u.typedefn );
if( sym_typedef.name != NULL ) {
ent = AuxLookup( sym_typedef.name );
if( ent != NULL ) {
inf = ent->info;
}
}
}
}
#if _CPU == 386
if( (inf->flags & AUX_FLAG_FAR16) || (sym->mods & FLAG_FAR16) ) {
if( (sym->mods & MASK_LANGUAGES) == LANG_PASCAL || (inf->cclass & REVERSE_PARMS) ) {
return( &Far16PascalInfo );
} else {
return( &Far16CdeclInfo );
}
}
#endif
return( inf );
}
bool FunctionAborts( SYMPTR sym, SYM_HANDLE sym_handle )
{
aux_entry *ent;
if( sym_handle != SYM_NULL ) {
SymGet( sym, sym_handle );
ent = AuxLookup( SymName( sym, sym_handle ) );
if( ent != NULL ) {
if( ent->info->cclass & SUICIDAL ) {
return( TRUE );
}
}
}
return( FALSE );
}
call_class GetCallClass( SYM_HANDLE sym_handle )
{
aux_info *inf;
SYM_ENTRY sym;
call_class cclass;
cclass = DefaultInfo.cclass;
if( sym_handle != SYM_NULL ) {
inf = FindInfo( &sym, sym_handle );
if( sym.flags & SYM_FUNCTION ) {
if( inf != &DefaultInfo ) {
cclass = inf->cclass;
} else {
cclass = GetLangInfo( sym.mods )->cclass;
#if _CPU == 8086
if( TargSys == TS_WINDOWS ) {
if( sym.mods & (LANG_CDECL | LANG_PASCAL) ) {
cclass |= FAT_WINDOWS_PROLOG;
}
}
#endif
}
#if ( _CPU == 8086 ) || ( _CPU == 386 )
if( CompFlags.emit_names ) {
cclass |= EMIT_FUNCTION_NAME;
}
if( sym.mods & FLAG_FAR ) {
cclass |= FAR_CALL;
if( sym.mods & FLAG_NEAR ) {
cclass |= INTERRUPT;
}
} else if( sym.mods & FLAG_NEAR ) {
cclass &= ~ FAR_CALL;
}
#endif
#ifdef DLL_EXPORT
if( sym.mods & FLAG_EXPORT ) {
cclass |= DLL_EXPORT;
}
#endif
#ifdef LOAD_DS_ON_ENTRY
if( sym.mods & FLAG_LOADDS ) {
#if 0
if( TargSys == TS_WINDOWS ) {
cclass |= FAT_WINDOWS_PROLOG;
} else {
cclass |= LOAD_DS_ON_ENTRY;
}
#else
cclass |= LOAD_DS_ON_ENTRY;
#endif
}
#endif
#ifdef MAKE_CALL_INLINE
if( IsInLineFunc( sym_handle ) ) {
cclass |= MAKE_CALL_INLINE;
}
#endif
if( VarFunc( &sym ) ) {
cclass |= CALLER_POPS | HAS_VARARGS;
}
}
#if ( _CPU == 8086 ) || ( _CPU == 386 )
if( sym.flags & SYM_FUNC_NEEDS_THUNK ) {
cclass |= THUNK_PROLOG;
}
#endif
}
#ifdef REVERSE
cclass &= ~ REVERSE_PARMS;
#endif
#ifdef PROLOG_HOOKS
if( CompFlags.ep_switch_used != 0 ) {
cclass |= PROLOG_HOOKS;
}
#endif
#ifdef EPILOG_HOOKS
if( CompFlags.ee_switch_used != 0 ) {
cclass |= EPILOG_HOOKS;
}
#endif
#ifdef GROW_STACK
if( CompFlags.sg_switch_used ) {
cclass |= GROW_STACK;
}
#endif
#ifdef TOUCH_STACK
if( CompFlags.st_switch_used ) {
cclass |= TOUCH_STACK;
}
#endif
return( cclass );
}
struct aux_info *InfoLookup( SYMPTR sym )
{
char *name;
struct aux_info *inf;
struct aux_entry *ent;
name = sym->name;
inf = &DefaultInfo; /* assume default */
if( name == NULL )
return( inf ); /* 01-jun-90 */
ent = AuxLookup( name );
if( ent != NULL )
inf = ent->info;
if( ( ent == NULL ) || (sym->flags & SYM_INTRINSIC) ) {
if( sym->flags & SYM_DEFINED )
return( inf );
if( !(sym->flags & SYM_INTRINSIC) ) {
if( memcmp( name, "_inline_", 8 ) != 0 )
return( inf );
name += 8;
}
#if ( _CPU == 8086 ) || ( _CPU == 386 )
{
struct inline_funcs *ifunc;
ifunc = IF_Lookup( name );
if( ifunc == NULL )
return( inf );
#if ( _CPU == 8086 )
if( HW_CEqual( ifunc->returns, HW_DX_AX )
|| HW_CEqual( ifunc->returns, HW_DS_SI )
|| HW_CEqual( ifunc->returns, HW_ES_DI )
|| HW_CEqual( ifunc->returns, HW_CX_DI ) ) {
if( SizeOfArg( sym->sym_type->object ) != 4 ) {
#else
if( HW_CEqual( ifunc->returns, HW_DX_AX )
|| HW_CEqual( ifunc->returns, HW_DS_ESI )
|| HW_CEqual( ifunc->returns, HW_ES_EDI )
|| HW_CEqual( ifunc->returns, HW_CX_DI ) ) {
if( SizeOfArg( sym->sym_type->object ) != 6 ) {
#endif
return( inf );
}
}
inf = &InlineInfo;
inf->cclass = (WatcallInfo.cclass & FAR) | MODIFY_EXACT;
if( (sym->flags & SYM_INTRINSIC) && ( ent != NULL ) )
inf->cclass |= ent->info->cclass;
inf->code = ifunc->code;
inf->parms = ifunc->parms;
inf->returns = ifunc->returns;
#if ( _CPU == 8086 )
if( !HW_CEqual( inf->returns, HW_AX )
&& !HW_CEqual( inf->returns, HW_EMPTY ) ) {
#else
if( !HW_CEqual( inf->returns, HW_EAX )
&& !HW_CEqual( inf->returns, HW_EMPTY ) ) {
#endif
inf->cclass |= SPECIAL_RETURN;
}
HW_CAsgn( inf->streturn, HW_EMPTY );
inf->save = ifunc->save;
inf->objname = WatcallInfo.objname; /* 26-jan-93 */
inf->use = 1;
}
#endif
}
return( inf );
}
struct aux_info *FindInfo( SYM_ENTRY *sym, SYM_HANDLE sym_handle )
{
SYM_ENTRY sym_typedef;
struct aux_entry *ent;
TYPEPTR typ;
struct aux_info *inf;
inf = &DefaultInfo; /* assume default */
if( sym_handle == 0 )
return( inf );
SymGet( sym, sym_handle );
#if _CPU == 386
if( (sym_handle == SymSTOSB) || (sym_handle == SymSTOSD) ) {
return( &STOSBInfo );
} else if( sym_handle == SymFinally ) {
static byte_seq FinallyCode = { 1, { 0xc3 } }; /* ret */
InlineInfo = WatcallInfo;
InlineInfo.code = &FinallyCode;
return( &InlineInfo );
} else if( sym_handle == SymTryFini ) {
static hw_reg_set TryFiniParms[] = {
HW_D( HW_EAX ),
HW_D( HW_EMPTY )
};
static byte_seq TryFiniCode = {
6, { 0x64, 0xA3, 0, 0, 0, 0 }
}; /* mov fs:[0],eax */
InlineInfo = WatcallInfo;
InlineInfo.parms = TryFiniParms;
InlineInfo.code = &TryFiniCode;
return( &InlineInfo );
}
#endif
if( !(sym->flags & SYM_TEMP) ) {
/* not an indirect func call*/
inf = InfoLookup( sym );
}
if( inf == &DefaultInfo ) {
typ = SkipDummyTypedef( sym->sym_type );
if( typ->decl_type == TYPE_TYPEDEF ) {
SymGet( &sym_typedef, typ->u.typedefn );
if( sym_typedef.name != NULL ) {
ent = AuxLookup( sym_typedef.name );
if( ent != NULL ) {
inf = ent->info;
}
}
}
}
#if _CPU == 386
if( ( inf->flags & AUX_FLAG_FAR16 )
|| ( sym->attrib & FLAG_FAR16 ) ) {
if( ( (sym->attrib & FLAG_LANGUAGES) == LANG_PASCAL )
|| ( inf->cclass & REVERSE_PARMS ) ) {
return( &Far16PascalInfo );
} else {
return( &Far16CdeclInfo );
}
}
#endif
return( inf );
}
int FunctionAborts( SYM_ENTRY *sym, SYM_HANDLE sym_handle ) /* 09-apr-93 */
{
struct aux_entry *ent;
if( sym_handle != 0 ) { /* 19-apr-93 */
SymGet( sym, sym_handle );
ent = AuxLookup( SymName( sym, sym_handle ) );
if( ent != NULL ) {
if( ent->info->cclass & SUICIDAL ) {
return( 1 );
}
}
}
return( 0 );
}
void GetCallClass( SYM_HANDLE sym_handle )
{
struct aux_info *inf;
SYM_ENTRY sym;
CallClass = DefaultInfo.cclass;
if( sym_handle != 0 ) {
inf = FindInfo( &sym, sym_handle );
if( sym.flags & SYM_FUNCTION ) {
if( inf != &DefaultInfo ) {
CallClass = inf->cclass;
} else {
CallClass = GetLangInfo( sym.attrib )->cclass;
#if _CPU == 8086
if( TargSys == TS_WINDOWS ) {
if( sym.attrib & (LANG_CDECL | LANG_PASCAL) ) {
CallClass |= FAT_WINDOWS_PROLOG;
}
}
#endif
}
#if ( _CPU == 8086 ) || ( _CPU == 386 )
if( CompFlags.emit_names ) {
CallClass |= EMIT_FUNCTION_NAME;
}
if( sym.attrib & FLAG_FAR ) {
CallClass |= FAR;
if( sym.attrib & FLAG_NEAR ) {
CallClass |= INTERRUPT;
}
} else if( sym.attrib & FLAG_NEAR ) {
CallClass &= ~ FAR;
}
#endif
#ifdef DLL_EXPORT
if( sym.attrib & FLAG_EXPORT ) { /* 12-mar-90 */
CallClass |= DLL_EXPORT;
}
#endif
#ifdef LOAD_DS_ON_ENTRY
if( sym.attrib & FLAG_LOADDS ) { /* 26-apr-90 */
#if 0 /* John - 11-mar-93 */ /* 21-feb-93 */
if( TargSys == TS_WINDOWS ) {
CallClass |= FAT_WINDOWS_PROLOG;
} else {
CallClass |= LOAD_DS_ON_ENTRY;
}
#else
CallClass |= LOAD_DS_ON_ENTRY;
#endif
}
#endif
#ifdef MAKE_CALL_INLINE
if( IsInLineFunc( sym_handle ) ) {
CallClass |= MAKE_CALL_INLINE;
}
#endif
if( VarFunc( &sym ) ) {
CallClass |= CALLER_POPS | HAS_VARARGS;
}
}
}
#ifdef REVERSE
CallClass &= ~ REVERSE_PARMS; /* 28-may-89 */
#endif
#if ( _CPU == 8086 ) || ( _CPU == 386 )
if( sym_handle != 0 && sym.flags & SYM_FUNC_NEEDS_THUNK ) {
CallClass |= THUNK_PROLOG;
}
#endif
#ifdef PROLOG_HOOKS
if( CompFlags.ep_switch_used != 0 ) {
CallClass |= PROLOG_HOOKS;
}
#endif
#ifdef EPILOG_HOOKS
if( CompFlags.ee_switch_used != 0 ) {
CallClass |= EPILOG_HOOKS;
}
#endif
#ifdef GROW_STACK
if( CompFlags.sg_switch_used ) {
CallClass |= GROW_STACK;
}
#endif
#ifdef TOUCH_STACK
if( CompFlags.st_switch_used ) {
CallClass |= TOUCH_STACK;
}
#endif
}
static time_t *getFileDepTimeStamp( FNAMEPTR flist )
{
static time_t stamp;
#if ( ( _CPU == 8086 ) || ( _CPU == 386 ) ) && ( COMP_CFG_COFF == 0 )
stamp = _timet2dos( flist->mtime );
#else
stamp = flist->mtime;
#endif
return( &stamp );
}
/*
// NextLibrary
// Called (indirectly) from the code generator to inject automagically defined symbols.
// Inputs:
// index (n-1)
// Usually called from a loop until we return 0/NULL to show no more libraries
// request
// NEXT_LIBRARY
// examines the current flags to see if any libraries should be
// automagically referenced and returns the relevant index if so.
// LIBRARY_NAME
// returns the requested name.
//
*/
static VOIDPTR NextLibrary( int index, aux_class request )
{
struct library_list *liblist;
char *name = NULL;
int i;
i = 0;
if( request == NEXT_LIBRARY )
++index;
for( liblist = HeadLibs; liblist; liblist = liblist->next ) {
name = &liblist->prio;
++i;
if( i == index ) {
break;
}
}
if( liblist == NULL ) {
switch( index - i ) {
case 1: /* return 1 for CLIB */
name = CLIB_Name;
if( CompFlags.emit_library_any )
break;
if( CompFlags.emit_library_with_main ) {
if( CompFlags.has_main )
break;
if( CompFlags.has_winmain )
break;
if( CompFlags.bd_switch_used )
break;
if( CompFlags.has_libmain )
break;
if( CompFlags.bm_switch_used )
break; /* JBS */
++index;
} else {
name = NULL;
index = 0; // indicate all done
}
break;
/*
// MATHLIB is always referenced as a default library because
// the linker wont include anything without a 'real' referenced
// symbol
*/
case 2: /* return 2 for MATHLIB */
name = MATHLIB_Name;
break;
case 3: /* return 3 for EMULIB */
name = EmuLib_Name;
if( EmuLib_Name != NULL )
break;
// fall through
case 4: /* used to be PCODE */
name = NULL;
index = 0; // indicate all done
break;
default:
break;
}
}
/*
// return library name, or
*/
if( request == LIBRARY_NAME )
return( name );
/*
// library index
*/
return( (char *)index );
}
// NextAlias
// Called (indirectly) from the code generator to go through the list of
// linker aliases.
// Inputs:
// index (n-1)
// Called from a loop until we return 0/NULL to show no more aliases
// request
// NEXT_ALIAS
// returns the index of next alias in the list, or zero if none.
// ALIAS_NAME
// returns the alias name, or NULL if alias refers to a symbol.
// ALIAS_SYMBOL
// returns the alias symbol, or NULL if alias refers to a name.
// ALIAS_SUBSTITUTE
// returns the name to be substituted for the alias.
//
// Note: One of ALIAS_NAME and ALIAS_SYMBOL will always be 0/NULL and the other
// will be valid, depending on which form of the pragma was used.
static VOIDPTR NextAlias( int index, aux_class request )
{
struct alias_list *aliaslist;
SYM_HANDLE alias_sym = NULL;
SYM_HANDLE subst_sym = NULL;
const char *alias_name = NULL;
const char *subst_name = NULL;
int i;
if( request == NEXT_ALIAS )
++index;
for( i = 1, aliaslist = AliasHead; aliaslist; aliaslist = aliaslist->next, ++i ) {
alias_name = aliaslist->name;
alias_sym = aliaslist->a_sym;
subst_name = aliaslist->subst;
subst_sym = aliaslist->s_sym;
if( i == index ) {
break;
}
}
if( aliaslist == NULL )
index = 0; /* no (more) aliases */
if( request == ALIAS_NAME ) {
return( (VOIDPTR)alias_name );
} else if( request == ALIAS_SYMBOL ) {
return( (VOIDPTR)alias_sym );
} else if( request == ALIAS_SUBST_NAME ) {
return( (VOIDPTR)subst_name );
} else if( request == ALIAS_SUBST_SYMBOL ) {
return( (VOIDPTR)subst_sym );
} else { // this had better be a NEXT_ALIAS request
return( (VOIDPTR)index );
}
}
/* Return the size of function parameters or -1 if size could
* not be determined (symbol isn't a function or is variadic)
*/
static int GetParmsSize( CGSYM_HANDLE sym_handle )
{
int total_parm_size = 0;
int parm_size;
TYPEPTR fn_typ;
TYPEPTR *parm;
TYPEPTR typ;
SYM_ENTRY sym;
SymGet( &sym, sym_handle );
fn_typ = sym.sym_type;
SKIP_TYPEDEFS( fn_typ );
if( fn_typ->decl_type == TYPE_FUNCTION ) {
parm = fn_typ->u.fn.parms;
if( parm != NULL ) {
for( ; (typ = *parm); ++parm ) {
if( typ->decl_type == TYPE_DOT_DOT_DOT ) {
total_parm_size = -1;
break;
}
SKIP_TYPEDEFS( typ );
if( typ->decl_type == TYPE_VOID )
break;
parm_size = TypeSize( typ );
parm_size = (parm_size + sizeof( target_int ) - 1)
& -sizeof( target_int );
total_parm_size += parm_size;
}
}
} else {
total_parm_size = -1;
}
return( total_parm_size );
}
/*
// Return name pattern manipulator string
*/
static char *GetNamePattern( CGSYM_HANDLE sym_handle )
{
char *pattern;
SYM_ENTRY sym;
struct aux_info *inf;
inf = FindInfo( &sym, sym_handle );
#ifdef __SEH__
if(( sym_handle == SymTryInit )
|| ( sym_handle == SymTryFini )
|| ( sym_handle == SymTryUnwind )
|| ( sym_handle == SymExcept )) {
pattern = "*";
} else {
#endif
inf = LangInfo( sym.attrib, inf );
if( sym.flags & SYM_FUNCTION ) {
pattern = inf->objname;
#if ( _CPU == 386 ) || ( _CPU == 8086 )
if( VarFunc( &sym ) ) {
if( inf == &DefaultInfo )
inf = DftCallConv;
if( inf == &StdcallInfo ) {
pattern = CdeclInfo.objname;
} else if( inf == &FastcallInfo ) {
pattern = CdeclInfo.objname;
}
}
#endif
if( pattern == NULL ) {
pattern = TS_CODE_MANGLE;
}
} else {
pattern = VarNamePattern( inf );
if( pattern == NULL ) {
pattern = TS_DATA_MANGLE;
}
}
#ifdef __SEH__
} // close that else
#endif
return( pattern );
}
