// #pragma alias(id1/"name1", id2/"name2")
//
// Causes linker to replace references to id1/name1 with references
// to id2/name2. Both the alias and the substituted symbol may be defined
// either as a string name or an id of existing symbol.
//
static void PragAlias( void )
/***************************/
{
SYM_HANDLE alias_sym;
SYM_HANDLE subst_sym;
const char *alias_name;
const char *subst_name;
alias_list **alias;
alias_list *new_alias;
alias_name = subst_name = NULL;
alias_sym = subst_sym = NULL;
if( ExpectingToken( T_LEFT_PAREN ) ) {
PPCTL_ENABLE_MACROS();
PPNextToken();
if( CurToken == T_ID ) {
alias_sym = SymLook( HashValue, Buffer );
if( alias_sym == 0 ) {
CErr2p( ERR_UNDECLARED_SYM, Buffer );
}
} else if( CurToken == T_STRING ) {
alias_name = CStrSave( Buffer );
}
PPNextToken();
MustRecog( T_COMMA );
if( CurToken == T_ID ) {
subst_sym = SymLook( HashValue, Buffer );
if( subst_sym == 0 ) {
CErr2p( ERR_UNDECLARED_SYM, Buffer );
}
} else if( CurToken == T_STRING ) {
subst_name = CStrSave( Buffer );
}
PPNextToken();
PPCTL_DISABLE_MACROS();
MustRecog( T_RIGHT_PAREN );
}
/* Add a new alias record - if it's valid - to the list */
if( ( alias_name != NULL || alias_sym != NULL ) && ( subst_name != NULL || subst_sym != NULL ) ) {
for( alias = &AliasHead; *alias != NULL; alias = &(*alias)->next )
; /* nothing to do */
new_alias = (void *)CMemAlloc( sizeof( alias_list ) );
new_alias->next = NULL;
if( alias_name ) {
new_alias->name = alias_name;
} else {
new_alias->a_sym = alias_sym;
}
if( subst_name ) {
new_alias->subst = subst_name;
} else {
new_alias->s_sym = subst_sym;
}
*alias = new_alias;
}
}
static user_seg *AllocUserSeg( const char *segname, const char *class_name, seg_type segtype )
{
user_seg *useg;
useg = CMemAlloc( sizeof( user_seg ) );
useg->next = NULL;
useg->name = CStrSave( segname );
useg->class_name = NULL;
useg->segtype = segtype;
if( class_name != NULL ) {
useg->class_name = CStrSave( class_name );
}
useg->segid = userSegment++;
return( useg );
}
static struct user_seg *AllocUserSeg( char *segname, char *class_name, seg_type segtype )
{
struct user_seg *useg;
useg = CMemAlloc( sizeof( struct user_seg ) );
useg->next = NULL;
useg->name = CStrSave( segname );
useg->class_name = NULL;
useg->segtype = segtype;
if( class_name != NULL ) {
useg->class_name = CStrSave( class_name );
}
useg->segment = UserSegment;
++UserSegment;
return( useg );
}
static void PragDataSeg( void ) /* 22-oct-92 */
/*****************************/
{
char *segname;
segment_id segment;
if( CurToken == T_LEFT_PAREN ) {
PPCTL_ENABLE_MACROS();
segment = 0;
NextToken();
if( ( CurToken == T_STRING ) || ( CurToken == T_ID ) ) {
segname = CStrSave( Buffer );
NextToken();
if( CurToken == T_COMMA ) {
NextToken();
if( ( CurToken == T_STRING ) || ( CurToken == T_ID ) ) {
segment = AddSegName( segname, Buffer, SEGTYPE_DATA );
NextToken();
} else {
segment = AddSegName( segname, NULL, SEGTYPE_DATA );
}
} else {
segment = AddSegName( segname, NULL, SEGTYPE_DATA );
}
CMemFree( segname );
}
PPCTL_DISABLE_MACROS();
MustRecog( T_RIGHT_PAREN );
DefDataSegment = segment;
}
}
void InitModInfo( void )
{
GenSwitches = 0;
TargetSwitches = 0;
Toggles = TOGGLE_CHECK_STACK
| TOGGLE_UNREFERENCED
| TOGGLE_REUSE_DUPLICATE_STRINGS;
DataThreshold = 32767;
OptSize = 50;
UndefNames = NULL;
WholeFName = NULL;
ObjectFileName = NULL;
ErrorFileName = CStrSave( "*" );
DependFileName = NULL;
DependForceSlash = 0;
ModuleName = NULL;
ErrLimit = 20;
WngLevel = 1;
#if _CPU == 8086
PackAmount = TARGET_INT; /* pack structs on word boundaries */
#elif _CPU == 386
PackAmount = 8;
#else
CompFlags.make_enums_an_int = 1; // make enums ints
CompFlags.original_enum_setting = 1;
PackAmount = 8;
#endif
PreProcChar = '#';
CompFlags.check_syntax = 0;
CompFlags.signed_char = 0;
CompFlags.use_full_codegen_od = 0;
CompFlags.inline_functions = 0;
CompFlags.dump_prototypes = 0;
CompFlags.generate_prototypes = 0;
CompFlags.bss_segment_used = 0;
CompFlags.undefine_all_macros = 0;
CompFlags.extensions_enabled = 1;
CompFlags.oldmacros_enabled = 1;
CompFlags.unix_ext = 0;
CompFlags.slack_byte_warning = 0;
CompFlags.errfile_written = 0;
CompFlags.zu_switch_used = 0;
CompFlags.register_conventions = 0;
CompFlags.pragma_library = 0;
CompFlags.emit_all_default_libs = 0;
CompFlags.emit_library_names = 1;
CompFlags.emit_dependencies = 1;
CompFlags.emit_targimp_symbols = 1;
CompFlags.use_unicode = 1;
CompFlags.no_debug_type_names = 0;
CompFlags.auto_agg_inits = 0;
CompFlags.no_check_inits = 0;
CompFlags.no_check_qualifiers = 0;
CompFlags.ignore_default_dirs = 0;
CompFlags.use_stdcall_at_number = 1;
CompFlags.rent = 0;
SetAuxWatcallInfo();
}
void PragObjNameInfo( char **objname )
/************************************/
{
if( CurToken == T_STRING ) {
*objname = CStrSave( Buffer );
NextToken();
}
}
local void CopyExceptRtn( void )
/******************************/
{
if( CurrInfo->except_rtn == NULL )
return;
if( CurrInfo->except_rtn != CurrAlias->except_rtn )
return;
CurrInfo->except_rtn = CStrSave( CurrInfo->except_rtn );
}
local void CopyObjName( void )
/****************************/
{
if( CurrInfo->objname == NULL )
return;
if( CurrInfo->objname != CurrAlias->objname )
return;
CurrInfo->objname = CStrSave( CurrInfo->objname );
}
void LookAhead( void )
{
SavedId = CStrSave( Buffer ); /* save current id */
SavedHash = HashValue; /* and its hash value */
SavedTokenLoc = TokenLoc; /* save linenum and fno 09-jul-95 */
NextToken(); /* get next token */
LAToken = CurToken; /* save it in look ahead */
CurToken = T_SAVED_ID; /* go back to saved id */
}
// forms: (1) #pragma include_alias( "alias_name", "real_name" )
// (2) #pragma include_alias( <alias_name>, <real_name> )
//
// causes include directives referencing alias_name to be refer
// to real_name instead
//
static void PragIncludeAlias( void )
/**********************************/
{
if( ExpectingToken( T_LEFT_PAREN ) ) {
PPCTL_ENABLE_MACROS();
NextToken();
if( CurToken == T_STRING ) {
char *alias_name;
alias_name = CStrSave( Buffer );
NextToken();
MustRecog( T_COMMA );
if( CurToken == T_STRING ) {
SrcFileIncludeAlias( alias_name, Buffer, FALSE );
NextToken();
}
CMemFree( alias_name );
} else if( CurToken == T_LT ) {
char a_buf[ 82 ]; /* same size as CInclude() in cmac2.c */
char r_buf[ 82 ];
a_buf[ 0 ] = '\0';
for( ;; ) {
NextToken();
if( CurToken == T_GT ) {
NextToken();
break;
}
if( CurToken == T_NULL ) {
break;
}
strncat( a_buf, Buffer, sizeof( a_buf ) - 2 );
}
MustRecog( T_COMMA );
if( CurToken == T_LT ) {
r_buf[ 0 ] = '\0';
for( ;; ) {
NextToken();
if( CurToken == T_GT ) {
NextToken();
break;
}
if( CurToken == T_NULL ) {
break;
}
strncat( r_buf, Buffer, sizeof( r_buf ) - 2 );
}
SrcFileIncludeAlias( a_buf, r_buf, TRUE );
}
}
PPCTL_DISABLE_MACROS();
MustRecog( T_RIGHT_PAREN );
}
}
static char *ChunkToStr( STRCHUNK *pch )
{
char *ret;
/* remove spaces from end of string */
while( pch->cursize > 0 && pch->data[pch->cursize - 1] == ' ' ) {
pch->data[--pch->cursize] = '\0';
}
ret = pch->data;
if( ret == NULL ) {
ret = CStrSave( "" );
}
return( ret );
}
static void PragCodeSeg( void ) /* 22-oct-92 */
/*****************************/
{
textsegment *seg;
char *segname;
char *classname;
if( CurToken == T_LEFT_PAREN ) {
PPCTL_ENABLE_MACROS();
seg = NULL;
NextToken();
if( ( CurToken == T_STRING ) || ( CurToken == T_ID ) ) {
segname = CStrSave( Buffer );
classname = CStrSave( "" );
NextToken();
if( CurToken == T_COMMA ) {
NextToken();
if( ( CurToken == T_STRING ) || ( CurToken == T_ID ) ) {
CMemFree( classname );
classname = CStrSave( Buffer );
// CodeClassName = CStrSave( Buffer ); /* 13-apr-93 */
NextToken();
}
}
seg = LkSegName( segname, classname );
CMemFree( segname );
CMemFree( classname );
}
PPCTL_DISABLE_MACROS();
MustRecog( T_RIGHT_PAREN );
DefCodeSegment = seg;
#if _CPU == 8086 || _CPU == 386
CompFlags.multiple_code_segments = 1;
#endif
}
}
void AsmSysMakeInlineAsmFunc( int code_ovrflw )
/*********************************************/
{
int code_length;
SYM_HANDLE sym_handle;
TREEPTR tree;
int uses_auto;
char name[8];
code_length = AsmCodeAddress;
if( code_length != 0 ) {
sprintf( name, "F.%d", AsmFuncNum );
++AsmFuncNum;
CreateAux( name );
CurrInfo = (struct aux_info *)CMemAlloc( sizeof( struct aux_info ) );
*CurrInfo = WatcallInfo;
CurrInfo->use = 1;
CurrInfo->save = AsmRegsSaved; // indicate no registers saved
uses_auto = InsertFixups( AsmCodeBuffer, code_length, &CurrInfo->code );
if( uses_auto ) {
/*
We want to force the calling routine to set up a [E]BP frame
for the use of this pragma. This is done by saying the pragma
modifies the [E]SP register. A kludge, but it works.
*/
HW_CTurnOff( CurrInfo->save, HW_SP );
}
CurrEntry->info = CurrInfo;
CurrEntry->next = AuxList;
AuxList = CurrEntry;
CurrEntry = NULL;
sym_handle = MakeFunction( CStrSave( name ),
FuncNode( GetType( TYPE_VOID ), 0, NULL ) );
tree = LeafNode( OPR_FUNCNAME );
tree->op.sym_handle = sym_handle;
tree = ExprNode( tree, OPR_CALL, NULL );
tree->expr_type = GetType( TYPE_VOID );
AddStmt( tree );
}
}
local void CDefine( void )
{
struct macro_parm *mp, *prev_mp, *formal_parms;
int parm_cnt, parm_end = 0;
int ppscan_mode;
char *token_buf;
source_loc macro_loc;
PPNextToken();
if( CurToken != T_ID ) {
ExpectIdentifier();
return;
}
if( strcmp( Buffer, "defined" ) == 0 ) {
CErr1( ERR_CANT_DEFINE_DEFINED );
return;
}
token_buf = CStrSave( Buffer );
formal_parms = NULL;
macro_loc = SrcFileLoc;
parm_cnt = -1; /* -1 ==> no () following */
if( CurrChar == '(' ) { /* parms present */
PPNextToken(); /* grab the '(' */
PPNextToken();
parm_cnt = 0; /* 0 ==> () following */
parm_end = 0;
prev_mp = NULL;
for( ;; ) {
if( CurToken == T_RIGHT_PAREN )
break;
if( parm_end ) {
ExpectingAfter( T_RIGHT_PAREN, T_DOT_DOT_DOT );
return;
}
if( CurToken != T_DOT_DOT_DOT && !ExpectingToken( T_ID ) ) {
return;
}
++parm_cnt;
if( CurToken == T_DOT_DOT_DOT ) {
parm_end = 1; /* can have no more parms after this. */
}
mp = (struct macro_parm *)CMemAlloc( sizeof( struct macro_parm ) );
if( formal_parms == NULL ) {
formal_parms = mp;
} else {
if( FormalParm( formal_parms ) ) {
CErr2p( ERR_DUPLICATE_MACRO_PARM, Buffer );
}
prev_mp->next_macro_parm = mp;
}
if( CurToken == T_DOT_DOT_DOT )
mp->parm = CStrSave( "__VA_ARGS__" );
else
mp->parm = CStrSave( Buffer );
prev_mp = mp;
PPNextToken();
if( CurToken == T_RIGHT_PAREN )
break;
if( CurToken == T_NULL ) {
CErr1( ERR_INVALID_MACRO_DEFN );
break;
}
if( parm_end ) {
ExpectingAfter( T_RIGHT_PAREN, T_DOT_DOT_DOT );
return;
}
MustRecog( T_COMMA );
if( CurToken != T_DOT_DOT_DOT && !ExpectingToken( T_ID ) ) {
return;
}
}
}
/* grab replacement tokens */
ppscan_mode = InitPPScan(); // enable T_PPNUMBER tokens
GrabTokens( parm_end ? -(parm_cnt + 1) : (parm_cnt + 1), formal_parms, token_buf, ¯o_loc );
FiniPPScan( ppscan_mode ); // disable T_PPNUMBER tokens
for( ; (mp = formal_parms) != NULL; ) {
formal_parms = mp->next_macro_parm;
CMemFree( mp->parm );
CMemFree( mp );
}
CMemFree( token_buf );
}
local int GetByteSeq( byte_seq **code )
/*************************************/
{
unsigned char buff[MAXIMUM_BYTESEQ + 32];
char *name;
unsigned long offset;
fix_words fixword;
int uses_auto;
char too_many_bytes;
#if _CPU == 8086
bool use_fpu_emu = FALSE;
#endif
AsmSysInit( buff );
CompFlags.pre_processing = 1; /* enable macros */
NextToken();
too_many_bytes = 0;
uses_auto = 0;
offset = 0;
name = NULL;
for( ;; ) {
if( CurToken == T_STRING ) { /* 06-sep-91 */
#if _CPU == 8086
AsmLine( Buffer, GET_FPU_EMU( ProcRevision ) );
use_fpu_emu = FALSE;
#else
AsmLine( Buffer, FALSE );
#endif
NextToken();
if( CurToken == T_COMMA ) {
NextToken();
}
} else if( CurToken == T_CONSTANT ) {
#if _CPU == 8086
if( use_fpu_emu ) {
AddAFix( AsmCodeAddress, NULL, FIX_SEG, 0 );
use_fpu_emu = FALSE;
}
#endif
AsmCodeBuffer[AsmCodeAddress++] = Constant;
NextToken();
} else {
#if _CPU == 8086
use_fpu_emu = FALSE;
#endif
fixword = FixupKeyword();
if( fixword == FIXWORD_NONE )
break;
if( fixword == FIXWORD_FLOAT ) {
#if _CPU == 8086
if( GET_FPU_EMU( ProcRevision ) ) {
use_fpu_emu = TRUE;
}
#endif
} else { /* seg or offset */
if( CurToken != T_ID ) {
CErr1( ERR_EXPECTING_ID );
} else {
name = CStrSave( Buffer );
NextToken();
if( CurToken == T_PLUS ) {
NextToken();
if( CurToken == T_CONSTANT ) {
offset = Constant;
NextToken();
}
} else if( CurToken == T_MINUS ) {
NextToken();
if( CurToken == T_CONSTANT ) {
offset = -Constant;
NextToken();
}
}
}
switch( fixword ) {
case FIXWORD_RELOFF:
#if _CPU == 8086
AddAFix( AsmCodeAddress, name, FIX_RELOFF16, offset );
AsmCodeAddress += 2;
#else
AddAFix( AsmCodeAddress, name, FIX_RELOFF32, offset );
AsmCodeAddress += 4;
#endif
break;
case FIXWORD_OFFSET:
#if _CPU == 8086
AddAFix( AsmCodeAddress, name, FIX_OFF16, offset );
AsmCodeAddress += 2;
#else
AddAFix( AsmCodeAddress, name, FIX_OFF32, offset );
AsmCodeAddress += 4;
#endif
break;
case FIXWORD_SEGMENT:
AddAFix( AsmCodeAddress, name, FIX_SEG, 0 );
AsmCodeAddress += 2;
break;
}
}
}
if( AsmCodeAddress > MAXIMUM_BYTESEQ ) {
if( ! too_many_bytes ) {
CErr1( ERR_TOO_MANY_BYTES_IN_PRAGMA );
too_many_bytes = 1;
}
AsmCodeAddress = 0; // reset index to we don't overrun buffer
}
}
if( too_many_bytes ) {
FreeAsmFixups();
uses_auto = 0;
} else {
uses_auto = InsertFixups( buff, AsmCodeAddress, code );
}
CompFlags.pre_processing = 2;
AsmSysFini();
return( uses_auto );
}
static void CDefine( void )
{
MPPTR mp;
MPPTR prev_mp;
MPPTR formal_parms;
mac_parm_count parm_count;
macro_flags mflags;
bool ppscan_mode;
char *token_buf;
source_loc macro_loc;
PPNextToken();
if( CurToken != T_ID ) {
ExpectIdentifier();
return;
}
if( CMPLIT( Buffer, "defined" ) == 0 ) {
CErr1( ERR_CANT_DEFINE_DEFINED );
return;
}
token_buf = CStrSave( Buffer );
formal_parms = NULL;
macro_loc = SrcFileLoc;
parm_count = 0; /* 0 ==> no () following */
mflags = MFLAG_USER_DEFINED;
if( CurrChar == '(' ) { /* parms present */
PPNextToken(); /* grab the '(' */
PPNextToken();
parm_count = 1; /* 1 ==> () following */
prev_mp = NULL;
for( ; CurToken != T_RIGHT_PAREN; ) {
if( mflags & MFLAG_VAR_ARGS ) {
ExpectingAfter( T_RIGHT_PAREN, T_DOT_DOT_DOT );
return;
}
if( CurToken != T_DOT_DOT_DOT && !ExpectingToken( T_ID ) ) {
return;
}
++parm_count;
if( CurToken == T_DOT_DOT_DOT ) {
mflags |= MFLAG_VAR_ARGS; /* can have no more parms after this. */
}
mp = (MPPTR)CMemAlloc( sizeof( MPDEFN ) );
if( formal_parms == NULL ) {
formal_parms = mp;
} else {
if( FormalParm( formal_parms ) ) {
CErr2p( ERR_DUPLICATE_MACRO_PARM, Buffer );
}
prev_mp->next = mp;
}
if( CurToken == T_DOT_DOT_DOT ) {
mp->parm = CStrSave( "__VA_ARGS__" );
} else {
mp->parm = CStrSave( Buffer );
}
prev_mp = mp;
PPNextToken();
if( CurToken == T_RIGHT_PAREN )
break;
if( CurToken == T_NULL ) {
CErr1( ERR_INVALID_MACRO_DEFN );
break;
}
if( mflags & MFLAG_VAR_ARGS ) {
ExpectingAfter( T_RIGHT_PAREN, T_DOT_DOT_DOT );
return;
}
MustRecog( T_COMMA );
if( CurToken != T_DOT_DOT_DOT && !ExpectingToken( T_ID ) ) {
return;
}
}
}
/* grab replacement tokens */
ppscan_mode = InitPPScan(); // enable T_PPNUMBER tokens
GrabTokens( parm_count, mflags, formal_parms, token_buf, ¯o_loc );
FiniPPScan( ppscan_mode ); // disable T_PPNUMBER tokens
for( ; (mp = formal_parms) != NULL; ) {
formal_parms = mp->next;
CMemFree( mp->parm );
CMemFree( mp );
}
CMemFree( token_buf );
}
static bool GetByteSeq( byte_seq **code )
/**************************************/
{
unsigned char buff[MAXIMUM_BYTESEQ + 32];
char *name;
unsigned offset;
fix_words fixword;
bool uses_auto;
bool too_many_bytes;
#if _CPU == 8086
bool use_fpu_emu = false;
#endif
AsmSysInit( buff );
PPCTL_ENABLE_MACROS();
NextToken();
too_many_bytes = false;
uses_auto = false;
offset = 0;
name = NULL;
for( ;; ) {
if( CurToken == T_STRING ) {
#if _CPU == 8086
AsmLine( Buffer, use_fpu_emu );
use_fpu_emu = false;
#else
AsmLine( Buffer, false );
#endif
NextToken();
if( CurToken == T_COMMA ) {
NextToken();
}
} else if( CurToken == T_CONSTANT ) {
#if _CPU == 8086
if( use_fpu_emu ) {
AddAFix( AsmCodeAddress, NULL, FIX_SEG, 0 );
use_fpu_emu = false;
}
#endif
AsmCodeBuffer[AsmCodeAddress++] = (unsigned char)Constant;
NextToken();
} else {
#if _CPU == 8086
use_fpu_emu = false;
#endif
fixword = FixupKeyword();
if( fixword == FIXWORD_NONE )
break;
if( fixword == FIXWORD_FLOAT ) {
#if _CPU == 8086
if( GET_FPU_EMU( ProcRevision ) ) {
use_fpu_emu = true;
}
#endif
} else { /* seg or offset */
if( !IS_ID_OR_KEYWORD( CurToken ) ) {
CErr1( ERR_EXPECTING_ID );
} else {
name = CStrSave( Buffer );
NextToken();
if( CurToken == T_PLUS ) {
NextToken();
if( CurToken == T_CONSTANT ) {
offset = Constant;
NextToken();
}
} else if( CurToken == T_MINUS ) {
NextToken();
if( CurToken == T_CONSTANT ) {
offset = -(int)Constant;
NextToken();
}
}
}
switch( fixword ) {
case FIXWORD_RELOFF:
#if _CPU == 8086
AddAFix( AsmCodeAddress, name, FIX_RELOFF16, offset );
AsmCodeAddress += 2;
#else
AddAFix( AsmCodeAddress, name, FIX_RELOFF32, offset );
AsmCodeAddress += 4;
#endif
break;
case FIXWORD_OFFSET:
#if _CPU == 8086
AddAFix( AsmCodeAddress, name, FIX_OFF16, offset );
AsmCodeAddress += 2;
#else
AddAFix( AsmCodeAddress, name, FIX_OFF32, offset );
AsmCodeAddress += 4;
#endif
break;
case FIXWORD_SEGMENT:
AddAFix( AsmCodeAddress, name, FIX_SEG, 0 );
AsmCodeAddress += 2;
break;
}
}
}
if( AsmCodeAddress > MAXIMUM_BYTESEQ ) {
if( !too_many_bytes ) {
CErr1( ERR_TOO_MANY_BYTES_IN_PRAGMA );
too_many_bytes = true;
}
AsmCodeAddress = 0; // reset index to we don't overrun buffer
}
}
PPCTL_DISABLE_MACROS();
if( too_many_bytes ) {
uses_auto = false;
} else {
uses_auto = InsertFixups( buff, AsmCodeAddress, code );
}
FreeAsmFixups();
AsmSysFini();
return( uses_auto );
}
