static void recordBlkScopeIns // RECORD A BLK-SCOPE INSTRUCTION
( SCOPE scope ) // - scope for instruction
{
if( canWriteIc() ) {
SCPINS* ins;
ACTBLK* act = findActiveScope( scope );
if( NULL == act ) {
act = RingCarveAlloc( carve_blk_scope, &ring_active_blks );
act->scope = scope;
act->ins = NULL;
}
ins = RingCarveAlloc( carve_scope_ins, &act->ins );
ins->scope_ins = CgioLastWrite( virtual_file );
}
}
DTREG_OBJ* DtregObj( // LOCATE RW_DTREG_OBJ SYMBOL
FN_CTL* fctl ) // - current function information
{
DTREG_OBJ* curr; // - current entry
DTREG_OBJ* obj; // - entry for function
obj = NULL;
RingIterBeg( ringDtregObj, curr ) {
if( ! curr->in_use ) {
obj = curr;
break;
}
} RingIterEnd( curr )
if( obj == NULL ) {
obj = RingCarveAlloc( carveDTREG_OBJ, &ringDtregObj );
obj->cg_sym = NULL;
}
if( ! DtmTabular( fctl ) ) {
obj->sym = NULL;
} else {
if( obj->cg_sym == NULL ) {
obj->cg_sym = CgVarRw( 3 * CgbkInfo.size_data_ptr, SC_AUTO );
AutoRelRegister( obj->cg_sym, &obj->offset );
}
obj->sym = obj->cg_sym;
}
obj->in_use = TRUE;
return obj;
}
static THROW_RO *throwRoGet( // GET THROW R/O BLOCK
TYPE type ) // - type being thrown
{
THROW_RO *srch; // - search R/O block for symbol
THROW_RO *ro; // - R/O block for symbol
SYMBOL sym; // - symbol for throw object
THROW_CNV_CTL ctl; // - control area
target_offset_t offset; // - offset ( not used )
type = TypeCanonicalThr( type );
ro = NULL;
RingIterBeg( ring_throw_ro, srch ) {
if( TypesIdentical( srch->sig->type, type ) ) {
ro = srch;
break;
}
} RingIterEnd( srch );
if( ro == NULL ) {
ro = RingCarveAlloc( carveTHROW_RO, &ring_throw_ro );
ro->sig = BeTypeSignature( type );
ro->emitted = false;
sym = CgVarRo( CgbkInfo.size_offset + sizeOfThrowCnv() * ThrowCnvInit( &ctl, type ),
SC_PUBLIC, CppNameThrowRo( type ) );
ro->sym = sym;
for( ; ; ) {
type = ThrowCnvType( &ctl, &offset );
if( type == NULL )
break;
BeTypeSignature( type );
}
ThrowCnvFini( &ctl );
}
return( ro );
}
static void vftAdd( // ADD A VFT ENTRY
SYMBOL vft ) // - symbol to be added
{
VFTGEN* gen; // - entry for VFT
gen = RingCarveAlloc( carve_gen, &vfts );
gen->sym = vft;
}
static POOL_CON* allocPoolCon // ALLOCATE CONSTANT-POOL ENTRY
( POOL_CON** a_hdr ) // - addr[ ring hdr ]
{
POOL_CON* pool = RingCarveAlloc( carvePOOL_CON, a_hdr );
pool->free = false;
pool->i64 = false;
pool->flt = false;
return pool;
}
static void set_buffering( // SET BUFFERING FOR AN OPEN FILE
FILE *fp, // - opened file
size_t buf_size, // - buffer size
int mode ) // - buffering mode
{
BUF_ALLOC* ba = RingCarveAlloc( carve_buf, &buffers );
ba->file = fp;
ba->buffer = CMemAlloc( buf_size );
setvbuf( fp, ba->buffer, mode, buf_size );
}
REPO_REC_FUN* RepoFunAdd( // ADD FUNCTION TO REPOSITORY
const char* name, // - function name
REPO_FUN_FLAGS flags ) // - function flags
{
REPO_REC_FUN* frec; // - new function record
frec = RingCarveAlloc( carveFunRepository, &funRepository );
frec->name = name;
frec->flags = flags;
return frec;
}
void CgCdArgDefine( // DEFINE CDOPT VALUE
unsigned value ) // - cdopt value
{
cg_name expr; // - expression under construction
cg_type type; // - expression type
cdtor_entry* cd_entry; // - cdopt entry
type = CgTypeOffset();
expr = CgOffset( value );
cd_entry = RingCarveAlloc( carver_cdtors, &ring_cdtors );
cd_entry->value = value;
cd_entry->handle = CallStackTopHandle();
CgExprPush( expr, type );
}
static void makeThrowCnvAccess( // MAKE A THROW CONVERSION, WITH ACCESS
THROW_CNV_CTL *ctl, // - control area
TYPE type, // - conversion type
target_offset_t offset, // - conversion offset
TYPE_SIG_ACCESS access ) // - type of access
{
THROW_CNV *cnv; // - conversion entry
bool err_occurred; // - set to true if error occurred
cnv = RingCarveAlloc( ctl->carver, &ctl->hdr );
cnv->offset = offset;
cnv->sig = TypeSigFind( access, type, &ctl->err_locn, &err_occurred );
if( err_occurred ) {
ctl->error_occurred = true;
}
}
static void queue // PLACE INSTRUCTION ON QUEUE
( CGINTEROP opcode // - opcode
, void const * parm // - parm for instruction
, TOKEN_LOCN const * locn ) // - location for instruction
{
if( cursor.src_file == locn->src_file
&& NULL != cursor.src_file
&& opcode != IC_BR_SRC_END ) {
writeIns( opcode, parm, locn );
} else {
PP_INS* ins = RingCarveAlloc( carvePpIns, &ins_queue );
ins->opcode = opcode;
ins->parm = parm;
TokenLocnAssign( ins->locn, *locn );
IfDbgToggle( browse ) {
DbgStmt( printf( "queued %s %x\n ", DbgIcOpcode( opcode ), parm ) );
DbgStmt( DbgDumpTokenLocn( locn ) );
DbgStmt( printf( "\n" ) );
}
}
}
TYPE_SIG *TypeSigFind( // FIND TYPE SIGNATURE
TYPE_SIG_ACCESS acc, // - access type
TYPE type, // - type for signature
TOKEN_LOCN* err_locn, // - error location for access errors
bool *error_occurred ) // - to set error indication
{
TYPE_SIG *srch; // - signature for searching
TYPE_SIG *sig; // - signature
SYMBOL sym; // - symbol
unsigned size; // - size of R/O data
NAME typesig_name; // - name of type signature
TYPE typesig_type; // - type of type signature
bool err_this_time; // - true ==> we have error
TYPE_SIG_ACCESS acc_ind; // - indirect access
err_this_time = false;
type = TypeCanonicalThr( type );
sig = NULL;
RingIterBeg( type_sigs, srch ) {
if( TypesSameExclude( srch->type, type, TC1_NOT_ENUM_CHAR ) ) {
sig = srch;
break;
}
} RingIterEnd( srch );
if( sig == NULL ) {
THROBJ thr; // - category of object
DbgVerify( 0 == ( acc & TSA_GEN )
, "TypeSigFind -- no type signature & TSA_GEN" );
sig = RingCarveAlloc( carveTYPE_SIG, &type_sigs );
sig->type = type;
sig->default_ctor = NULL;
sig->copy_ctor = NULL;
sig->dtor = NULL;
sig->sym = NULL;
sig->base = NULL;
sig->cgref = false;
sig->cggen = false;
sig->free = false;
thr = ThrowCategory( type );
if( acc & TSA_INDIRECT ) {
acc_ind = acc | TSA_INDIRECT_ACCESS;
} else if( acc & TSA_INDIRECT_ACCESS ) {
acc_ind = ( acc & ~ TSA_INDIRECT ) | TSA_INDIRECT_GEN;
} else {
acc_ind = acc;
}
size = 0;
switch( thr ) {
case THROBJ_PTR_SCALAR :
case THROBJ_PTR_CLASS :
sig->base = TypeSigFind( acc_ind & TSA_INDIRECT
, TypePointedAtModified( type )
, err_locn
, &err_this_time );
size = typeSigHdrSize();
break;
case THROBJ_SCALAR :
case THROBJ_PTR_FUN :
case THROBJ_VOID_STAR :
size = typeSigHdrSize() + SizeTargetSizeT();
break;
case THROBJ_REFERENCE :
sig->base = TypeSigFind( acc_ind
, TypeReference( type )
, err_locn
, &err_this_time );
break;
case THROBJ_CLASS :
case THROBJ_CLASS_VIRT :
size = 3 * CgCodePtrSize() + CgDataPtrSize() + typeSigHdrSize();
break;
case THROBJ_ANYTHING :
break;
default :
DbgStmt( CFatal( "cgTypeSignature -- invalid throw category" ) );
}
size += typeSigNameSize( thr );
if( size == 0 ) {
sym = NULL;
} else { // - type for TYPE SIGNATURE variable
typesig_name = CppNameTypeSig( type );
sym = ScopeAlreadyExists( GetFileScope(), typesig_name );
if( sym == NULL ) {
typesig_type = MakeInternalType( size );
typesig_type = MakeCompilerConstCommonData( typesig_type );
sym = SymCreateFileScope( typesig_type
, SC_PUBLIC
, SF_REFERENCED | SF_ADDR_TAKEN
, typesig_name );
LinkageSet( sym, "C++" );
CgSegId( sym );
}
}
sig->sym = sym;
}
if( err_this_time ) {
*error_occurred = true;
} else {
if( NULL != sig->sym ) {
SegmentMarkUsed( sig->sym->segid );
}
*error_occurred = false;
typeSigAccess( acc, sig, err_locn, error_occurred );
}
return( sig );
}