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preproc.c
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preproc.c
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/****************************************************************************
*
* This code is Public Domain.
*
* ========================================================================
*
* Description: preprocessor
*
****************************************************************************/
#include <ctype.h>
#include <stdarg.h>
#include "globals.h"
#include "memalloc.h"
#include "parser.h"
#include "condasm.h"
#include "tokenize.h"
#include "equate.h"
#include "macro.h"
#include "input.h"
#include "fastpass.h"
#include "listing.h"
#include "proc.h"
#include "expreval.h"
#include "assume.h"
#define REMOVECOMENT 0 /* 1=remove comments from source */
extern ret_code (* const directive_tab[])( int, struct asm_tok[] );
#ifdef DEBUG_OUT
int_32 cntppl0; /* count preprocessed lines 1 */
int_32 cntppl1; /* count preprocessed lines 2 */
int_32 cntppl2; /* count lines NOT handled by preprocessor */
#endif
/* preprocessor directive or macro procedure is preceded
* by a code label.
*/
ret_code WriteCodeLabel( char *line, struct asm_tok tokenarray[] )
/****************************************************************/
{
int oldcnt;
int oldtoken;
char oldchar;
if ( tokenarray[0].token != T_ID ) {
return( EmitErr( SYNTAX_ERROR_EX, tokenarray[0].string_ptr ) );
}
/* ensure the listing is written with the FULL source line */
if ( CurrFile[LST] ) LstWrite( LSTTYPE_LABEL, 0, NULL );
/* v2.04: call ParseLine() to parse the "label" part of the line */
oldcnt = Token_Count;
oldtoken = tokenarray[2].token;
oldchar = *tokenarray[2].tokpos;
Token_Count = 2;
tokenarray[2].token = T_FINAL;
*tokenarray[2].tokpos = NULLC;
ParseLine( tokenarray );
if ( Options.preprocessor_stdout == TRUE )
WritePreprocessedLine( line );
Token_Count = oldcnt;
tokenarray[2].token = oldtoken;
*tokenarray[2].tokpos = oldchar;
return( NOT_ERROR );
}
/* Verify a matched pair of function call brackets, assuming initial opening bracket position
and return the closing bracket position or -1.
*/
int VerifyBrackets(struct asm_tok tokenarray[], int openIdx, bool inParam)
{
int len;
int i = openIdx;
int opCnt = 0;
if (tokenarray[i].token != T_OP_BRACKET)
{
EmitErr(MISSING_LEFT_PARENTHESIS_IN_EXPRESSION);
return(-1);
}
if (!inParam)
{
for (i = 0;i < openIdx;i++)
{
if (tokenarray[i].token == T_OP_BRACKET || tokenarray[i].token == '(')
opCnt++;
}
}
if (tokenarray[i + 1].token == T_CL_BRACKET)
return(i + 1);
for (i = Token_Count-1;i > openIdx; i--)
{
if (tokenarray[i].token == T_CL_BRACKET && opCnt == 0)
return(i);
else if (tokenarray[i].token == T_CL_BRACKET)
opCnt--;
}
EmitErr(MISSING_RIGHT_PARENTHESIS_IN_EXPRESSION);
return(-1);
}
/* We only allow a single level of nested calls */
static void VerifyNesting(char *line, bool exprBracket)
{
int depth = 0;
int maxdepth = (exprBracket) ? 3 : 2;
char *p = line;
// Reduce allowed nesting for system-v calls as arginvoke doesn't support it yet.
if ((Options.output_format == OFORMAT_ELF || Options.output_format == OFORMAT_MAC) && Options.sub_format == SFORMAT_64BIT)
maxdepth = (exprBracket) ? 2 : 1;
// Same for 32bit code for now..
if (Options.sub_format != SFORMAT_64BIT)
maxdepth = (exprBracket) ? 2 : 1;
while (*p)
{
if (*p == '(')
depth++;
if (*p == ')')
depth--;
if (depth > maxdepth)
{
EmitErr(MAX_C_NESTING);
return;
}
p++;
}
}
static void ExpandObjCalls(char *line, struct asm_tok tokenarray[])
{
int i,j;
struct dsym *sym;
struct dsym *type = NULL;
struct dsym *tsym;
struct dsym *param;
bool foundType = FALSE;
bool foundProc = FALSE;
int derefCount = 0;
int opIdx = 0;
int clIdx = 0;
int clSqIdx = 0;
int opSqIdx = 0;
char newline[MAX_LINE_LEN];
bool gotOpen = FALSE;
bool gotClose = FALSE;
bool gotCloseSqr = FALSE;
bool gotOpenSqr = FALSE;
char methodName[MAX_LINE_LEN];
char indirectAddr[MAX_LINE_LEN];
char *pMethodStr = methodName;
char *pStr = newline;
char *pType = NULL;
bool inExpr = FALSE;
bool hasExprBracket = FALSE;
bool inParam = FALSE;
bool inProc = FALSE;
int firstDeRefIdx = 0;
int paramCount = 0;
char pcs[16];
bool didExpand = TRUE;
char refStr[MAX_LINE_LEN];
char *pRefStr = refStr;
struct sfield *field = NULL;
strcpy(newline, line);
// Scan through tokens, looking for pointer operators.
while (didExpand)
{
memset(&indirectAddr, 0, MAX_LINE_LEN);
memset(&methodName, 0, MAX_LINE_LEN);
memset(&newline, 0, MAX_LINE_LEN);
memset(&refStr, 0, MAX_LINE_LEN);
pStr = newline;
pRefStr = refStr;
didExpand = FALSE;
paramCount = 0;
for (i = 0; i < Token_Count; i++)
{
if (tokenarray[i].token == T_POINTER)
{
/* Scan backwards to check if we're in an HLL expression or call parameter */
if (i > 0)
{
for (j = i - 1; j >= 0; j--)
{
tsym = SymCheck(tokenarray[j].string_ptr);
if (tokenarray[j].token == T_DIRECTIVE && (tokenarray[j].dirtype == DRT_HLLSTART || tokenarray[j].dirtype == DRT_HLLEND))
{
inExpr = TRUE;
if (tokenarray[j + 1].token == T_OP_BRACKET || tokenarray[j + 1].tokval == '(')
hasExprBracket = TRUE;
else
hasExprBracket = FALSE;
break;
}
else if ((tokenarray[j].token == T_DIRECTIVE && tokenarray[j].dirtype == DRT_INVOKE) ||
strcmp(tokenarray[j].string_ptr, "arginvoke") == 0 ||
strcmp(tokenarray[j].string_ptr, "_INVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_I") == 0 ||
strcmp(tokenarray[j].string_ptr, "_VINVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_V") == 0 ||
strcmp(tokenarray[j].string_ptr, "_SINVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_DEREF") == 0 ||
strcmp(tokenarray[j].string_ptr, "_DEREFI") == 0 ||
strcmp(tokenarray[j].string_ptr, "uinvoke") == 0)
{
inParam = TRUE;
break;
}
else if (tokenarray[j].token == T_ID && tsym && tsym->sym.isproc)
{
inParam = TRUE;
inProc = TRUE;
break;
}
}
}
if(derefCount == 0)
foundType = FALSE;
foundProc = FALSE;
// The item to the left of the pointer must be an ID with type or register or register indirect.
if (i == 0 && tokenarray[i - 1].token != T_ID && tokenarray[i - 1].token != T_REG && tokenarray[i - 1].token != T_CL_SQ_BRACKET)
{
EmitError(INVALID_POINTER);
}
/* Variable object reference */
else if (tokenarray[i - 1].token == T_ID)
{
if (derefCount == 0)
{
sym = SymCheck(tokenarray[i - 1].string_ptr);
if (sym && sym->sym.target_type && sym->sym.target_type > 0x200000 && sym->sym.target_type->isClass)
{
foundType = TRUE;
pType = tokenarray[i - 1].string_ptr;
type = sym->sym.target_type;
firstDeRefIdx = i - 2; /* pointer->item */
}
else if (sym && sym->sym.type && sym->sym.type->target_type && sym->sym.type->target_type > 0x200000 && sym->sym.type->target_type->isClass)
{
foundType = TRUE;
pType = tokenarray[i - 1].string_ptr;
type = sym->sym.type->target_type;
firstDeRefIdx = i - 2; /* pointer->item */
}
else if (sym && sym->sym.type && sym->sym.type->target_type && sym->sym.type->target_type > 0x200000 && sym->sym.type->target_type->isPtrTable)
{
foundType = TRUE;
pType = tokenarray[i - 1].string_ptr;
type = sym->sym.type->target_type;
firstDeRefIdx = 0; /* pointer->item */
}
/* Indirect register using .TYPE */
else if (sym && (sym->sym.isClass || sym->sym.isPtrTable))
{
gotCloseSqr = TRUE;
gotOpenSqr = FALSE;
clSqIdx = i - 3;
// Scan back to find opening square bracket.
for (j = i - 1; j >= 0; j--)
{
if (tokenarray[j].token == T_OP_SQ_BRACKET)
{
opSqIdx = j;
gotOpenSqr = TRUE;
break;
}
}
if (!gotOpenSqr || !gotCloseSqr)
EmitError(INVALID_POINTER);
// The tokens between opSqIdx and clSqIdx make up the indirect address.
// -> the first register(base) must be assumed to an object pointer.
if (sym && (sym->sym.isClass || sym->sym.isPtrTable))
{
foundType = TRUE;
pType = indirectAddr;
pType = strcpy(pType, "[") + 1;
for (j = opSqIdx + 1; j < clSqIdx; j++)
{
strcpy(pType, tokenarray[j].string_ptr);
pType += strlen(tokenarray[j].string_ptr);
}
pType = strcpy(pType, "]") + 1;
pType = indirectAddr;
type = (struct dsym *)sym;
firstDeRefIdx = opSqIdx - 1; /* pointer->item */
}
else
EmitError(INVALID_POINTER);
}
}
else
{
// Ensure tokenarray[i - 1].string_ptr is a field of the current TYPE, then get it's target type.
bool gotField = FALSE;
field = type->e.structinfo->head;
for (; field; field = field->next)
{
if (_stricmp(field->sym.name, tokenarray[i - 1].string_ptr) == 0)
{
gotField = TRUE;
break;
}
}
if (gotField)
{
type = field->sym.target_type;
if (!type || type < 0x10)
type = field->sym.type->target_type;
if (!type || type < 0x10)
EmitError(INVALID_POINTER);
}
else
EmitError(INVALID_POINTER);
// Append the item to the pType.
strcpy(pType + strlen(pType), ".");
strcpy(pType + strlen(pType), tokenarray[i - 1].string_ptr);
}
if (!foundType)
EmitError(INVALID_POINTER);
}
/* Direct register object reference */
else if (tokenarray[i - 1].token == T_REG)
{
sym = StdAssumeTable[GetRegNo(tokenarray[i - 1].tokval)].symbol;
if (sym && sym->sym.target_type)
{
foundType = TRUE;
pType = tokenarray[i - 1].string_ptr;
type = sym->sym.target_type;
firstDeRefIdx = i - 2; /* pointer->item */
}
else
EmitError(INVALID_POINTER);
}
/* Indirect memory address type object reference */
else if (tokenarray[i - 1].token == T_CL_SQ_BRACKET)
{
gotCloseSqr = TRUE;
gotOpenSqr = FALSE;
clSqIdx = i - 1;
// Scan back to find opening square bracket.
for (j = i - 1; j >= 0; j--)
{
if (tokenarray[j].token == T_OP_SQ_BRACKET)
{
opSqIdx = j;
gotOpenSqr = TRUE;
break;
}
}
if (!gotOpenSqr || !gotCloseSqr)
EmitError(INVALID_POINTER);
// The tokens between opSqIdx and clSqIdx make up the indirect address.
// -> the first register(base) must be assumed to an object pointer.
sym = StdAssumeTable[GetRegNo(tokenarray[opSqIdx + 1].tokval)].symbol;
if (sym && sym->sym.target_type)
{
foundType = TRUE;
pType = &indirectAddr;
pType = strcpy(pType, "[") + 1;
for (j = opSqIdx + 1; j < clSqIdx; j++)
{
strcpy(pType, tokenarray[j].string_ptr);
pType += strlen(tokenarray[j].string_ptr);
}
pType = strcpy(pType, "]") + 1;
pType = &indirectAddr;
type = sym->sym.target_type;
firstDeRefIdx = opSqIdx-1; /* pointer->item */
}
else
EmitError(INVALID_POINTER);
}
// The right of the pointer must be an ID (either a method(proc) or another type).
if (!type || tokenarray[i + 1].token != T_ID)
EmitError(INVALID_POINTER);
else
{
pMethodStr = &methodName;
pMethodStr = strcpy(pMethodStr, "_") + 1;
strcpy(pMethodStr, type->sym.name);
pMethodStr += strlen(type->sym.name);
pMethodStr = strcpy(pMethodStr, "_") + 1;
strcpy(pMethodStr, tokenarray[i + 1].string_ptr);
pMethodStr += strlen(tokenarray[i + 1].string_ptr);
pMethodStr = &methodName;
sym = SymCheck(pMethodStr);
if (sym && sym->sym.isproc)
{
foundProc = TRUE;
pMethodStr = tokenarray[i + 1].string_ptr;
for (param = sym->e.procinfo->paralist; param; param = param->nextparam)
{
paramCount++;
}
}
else if (type && type->sym.isClass)
{
foundProc = FALSE;
if (derefCount == 0)
{
strcpy(pRefStr, pType);
pRefStr += strlen(pType);
}
else
{
pRefStr = strcpy(pRefStr, "rcx") + 3;
}
pRefStr = strcpy(pRefStr, ",") + 1;
strcpy(pRefStr, type->sym.name);
pRefStr += strlen(type->sym.name);
strcpy(pType, type->sym.name); // Reset pType to the type name.
}
else
EmitError(INVALID_POINTER);
}
// Find the proc open/close brackets.
if (foundProc)
{
int openCount = 1;
for (j = i; j < Token_Count; j++)
{
if (tokenarray[j].token == T_OP_BRACKET || tokenarray[j].tokval == '(')
{
opIdx = j;
gotOpen = TRUE;
break;
}
}
for (j = opIdx + 1; j < Token_Count; j++)
{
if (tokenarray[j].token == T_CL_BRACKET || tokenarray[j].tokval == ')')
openCount--;
if (tokenarray[j].token == T_OP_BRACKET || tokenarray[j].tokval == '(')
openCount++;
if (openCount == 0)
{
clIdx = j;
gotClose = TRUE;
break;
}
}
if (!gotOpen)
EmitError(MISSING_LEFT_PARENTHESIS_IN_EXPRESSION);
if (!gotClose)
EmitError(MISSING_RIGHT_PARENTHESIS_IN_EXPRESSION);
}
if (foundProc)
{
if (!type->sym.isPtrTable)
{
for (j = 0; j <= firstDeRefIdx; j++)
{
pStr = strcpy(pStr, " ") + 1;
strcpy(pStr, tokenarray[j].string_ptr);
pStr += strlen(tokenarray[j].string_ptr);
pStr = strcpy(pStr, " ") + 1;
}
}
if (inExpr || inParam)
pStr = strcpy(pStr, "_DEREFI(") + 8;
else if (!type->sym.isPtrTable)
pStr = strcpy(pStr, "_DEREF ") + 7;
else if (type->sym.isPtrTable)
{
if (tokenarray[i - 3].token == T_CL_SQ_BRACKET)
{
pStr = strcpy(pStr, "_DEREFRR ") + 9;
strcpy(pStr, pType);
pStr += strlen(pType);
pStr = strcpy(pStr, ",") + 1;
}
else
{
pStr = strcpy(pStr, "_DEREFR ") + 8;
strcpy(pStr, tokenarray[i - 1].string_ptr);
pStr += strlen(tokenarray[i - 1].string_ptr);
pStr = strcpy(pStr, ",") + 1;
}
}
strcpy(pStr, type->sym.name);
pStr += strlen(type->sym.name);
pStr = strcpy(pStr, ",") + 1;
strcpy(pStr, pMethodStr);
pStr += strlen(pMethodStr);
pStr = strcpy(pStr, ",") + 1;
if(type->sym.isPtrTable)
sprintf(pcs, "%d", paramCount); // no -1, these are raw functions
else
sprintf(pcs, "%d", paramCount - 1); //-1 due to thisPtr implicit
strcpy(pStr, pcs);
pStr += strlen(pcs);
pStr = strcpy(pStr, ",") + 1;
if ((paramCount - 1) == 0 && !type->sym.isPtrTable) // For no argument case, put a dummy 0 in to be filtered out by deref
{
pStr = strcpy(pStr, "0") + 1;
}
else if(!type->sym.isPtrTable)
pStr = strcpy(pStr, "0,") + 2;
for (j = opIdx + 1; j < clIdx; j++)
{
if (*tokenarray[j].string_ptr == '&')
pStr = strcpy(pStr, " ADDR ") + 6;
else
{
strcpy(pStr, tokenarray[j].string_ptr);
pStr += strlen(tokenarray[j].string_ptr);
if (strncmp(tokenarray[j].string_ptr, "ADDR",4) == 0)
pStr = strcpy(pStr, " ") + 1;
}
}
if(!type->sym.isPtrTable)
pStr = strcpy(pStr, ",") + 1;
if (derefCount > 0)
{
strcpy(pStr, refStr);
pStr += strlen(refStr);
pStr = strcpy(pStr, ",") + 1;
}
if (derefCount == 0 && !type->sym.isPtrTable)
{
strcpy(pStr, pType);
pStr += strlen(pType);
pStr = strcpy(pStr, ",") + 1;
strcpy(pStr, type->sym.name);
pStr += strlen(type->sym.name);
}
else if(!type->sym.isPtrTable)
{
pStr = strcpy(pStr, "rcx,") + 4;
strcpy(pStr, pType);
pStr += strlen(pType);
}
if (inExpr || inParam)
pStr = strcpy(pStr, ")") + 1;
for (j = clIdx + 1; j < Token_Count; j++)
{
pStr = strcpy(pStr, " ") + 1;
strcpy(pStr, tokenarray[j].string_ptr);
pStr += strlen(tokenarray[j].string_ptr);
pStr = strcpy(pStr, " ") + 1;
}
didExpand = TRUE;
break;
}
derefCount++;
}
}
/* Transfer new source line back for token rescan */
if (didExpand)
{
strcpy(line, &newline);
Token_Count = Tokenize(line, 0, tokenarray, TOK_RESCAN);
}
}
}
/* Expand static object type method invocations */
static void ExpandStaticObjCalls(char *line, struct asm_tok tokenarray[])
{
int i, j;
struct asym *sym = NULL;
int opIdx, clIdx;
int method;
int type;
char newline[MAX_LINE_LEN];
char *pStr;
int opCount = 0;
bool hasParams = FALSE;
bool inParam = FALSE;
bool inExpr = FALSE;
bool inProc = FALSE;
bool hasExprBracket = FALSE;
struct dsym *tsym = NULL;
memset(&newline, 0, MAX_LINE_LEN);
pStr = newline;
for (i = 0; i < Token_Count; i++)
{
if (tokenarray[i].token == T_ID)
{
sym = SymSearch(tokenarray[i].string_ptr);
if (sym && sym->isClass)
{
if (tokenarray[i + 1].token == T_DOT && tokenarray[i + 2].token == T_ID && tokenarray[i + 3].token == T_OP_BRACKET)
{
/* Scan backwards to check if we're in an HLL expression or call parameter */
if (i > 0)
{
for (j = i - 1; j >= 0; j--)
{
tsym = SymCheck(tokenarray[j].string_ptr);
if (tokenarray[j].token == T_DIRECTIVE && (tokenarray[j].dirtype == DRT_HLLSTART || tokenarray[j].dirtype == DRT_HLLEND))
{
inExpr = TRUE;
if (tokenarray[j + 1].token == T_OP_BRACKET || tokenarray[j + 1].tokval == '(')
hasExprBracket = TRUE;
else
hasExprBracket = FALSE;
break;
}
else if ((tokenarray[j].token == T_DIRECTIVE && tokenarray[j].dirtype == DRT_INVOKE) ||
strcmp(tokenarray[j].string_ptr, "arginvoke") == 0 ||
strcmp(tokenarray[j].string_ptr, "_INVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_I") == 0 ||
strcmp(tokenarray[j].string_ptr, "_VINVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_V") == 0 ||
strcmp(tokenarray[j].string_ptr, "_SINVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_DEREF") == 0 ||
strcmp(tokenarray[j].string_ptr, "_DEREFI") == 0 ||
strcmp(tokenarray[j].string_ptr, "uinvoke") == 0)
{
inParam = TRUE;
break;
}
else if (tokenarray[j].token == T_ID && tsym && tsym->sym.isproc)
{
inParam = TRUE;
inProc = TRUE;
break;
}
}
}
// Allow expansion in an instruction.
if (tokenarray[i - 1].token == T_COMMA)
inExpr = TRUE;
// Allow expansion in a memory address [].
if (i > 0)
{
for (j = i - 1; j >= 0; j--)
{
if (tokenarray[j].token == T_OP_SQ_BRACKET)
{
inExpr = TRUE;
break;
}
}
}
opIdx = i + 3;
method = i + 2;
type = i;
// Find closing bracket.
opCount = 1;
for (j = opIdx + 1; j < Token_Count; j++)
{
if (tokenarray[j].token == T_OP_BRACKET)
opCount++;
else if (tokenarray[j].token == T_CL_BRACKET)
opCount--;
if (opCount == 0)
{
clIdx = j;
break;
}
}
// Are there parameters?
if (clIdx > opIdx + 1)
hasParams = TRUE;
// **** Build new line. ****
// Copy any pre-tokens
for (j = 0; j < i; j++)
{
pStr = strcpy(pStr, tokenarray[j].string_ptr);
pStr += strlen(tokenarray[j].string_ptr);
pStr = strcpy(pStr, " ") + 1;
}
if(inProc || inParam || inExpr)
pStr = strcpy(pStr, "_STATIC(") + 8;
else
pStr = strcpy(pStr, "_SINVOKE ") + 9;
strcpy(pStr, tokenarray[type].string_ptr);
pStr += strlen(tokenarray[type].string_ptr);
pStr = strcpy(pStr, ",") + 1;
strcpy(pStr, tokenarray[method].string_ptr);
pStr += strlen(tokenarray[method].string_ptr);
if (hasParams)
{
pStr = strcpy(pStr, ",") + 1;
for (j = opIdx + 1; j < clIdx; j++)
{
if (*tokenarray[j].string_ptr == '&')
pStr = strcpy(pStr, " ADDR ") + 6;
else
{
pStr = strcpy(pStr, tokenarray[j].string_ptr);
pStr += strlen(tokenarray[j].string_ptr);
}
//if( j < clIdx-1 )
// pStr = strcpy(pStr, ",") + 1;
}
}
if (inProc || inParam || inExpr)
pStr = strcpy(pStr, ")") + 1;
// If there are more tokens after the closing bracket, add them.
if (clIdx < Token_Count-1)
{
for (i = clIdx+1; i < Token_Count; i++)
{
pStr = strcpy(pStr, tokenarray[i].string_ptr);
pStr += strlen(tokenarray[i].string_ptr);
pStr = strcpy(pStr, " ") + 1;
}
}
strcpy(line, newline);
Token_Count = Tokenize(line, 0, tokenarray, TOK_RESCAN);
}
}
}
}
}
static struct asym * TraverseEquate(struct asym *sym)
{
struct asym *resultSym = sym;
if (sym)
{
while (resultSym->state == SYM_TMACRO && resultSym->string_ptr != NULL)
{
resultSym = SymLookup(resultSym->string_ptr);
}
}
return(resultSym);
}
static void ExpandHllCalls(char *line, struct asm_tok tokenarray[], bool inParam, int argIdx, bool inExpr)
{
int i, j;
struct dsym *sym;
char newline[MAX_LINE_LEN];
int clIdx, opIdx;
int tokenCount;
struct asm_tok *tokenarray2;
char *p = &newline;
char idxStack[] = { 0, 0, 0, 0 };
int stackPt = -1;
char idxline[MAX_LINE_LEN];
char invCnt = 1;
bool hasExprBracket = FALSE;
bool expandedCall = FALSE;
char uCnt = 0;
strcpy(&newline, line);
memset(&idxline, 0, MAX_LINE_LEN);
for (i = 0;i < Token_Count;i++)
{
if (tokenarray[i].token == T_ID)
{
sym = SymCheck(tokenarray[i].string_ptr);
sym = TraverseEquate(sym); /* We may have an equate chain that points to a proc, as we expand here before macro substitution we need to consider this */
if(sym && (sym->sym.isproc || (sym->sym.isfunc && sym->sym.state == SYM_EXTERNAL)) && tokenarray[i+1].tokval != T_PROC && tokenarray[i+1].tokval != T_PROTO &&
tokenarray[i+1].tokval != T_ENDP && tokenarray[i+1].tokval != T_EQU && tokenarray[i+1].token == T_OP_BRACKET)
{
/* Scan backwards to check if we're in an HLL expression or call parameter */
if (i > 0)
{
for (j = i - 1;j >= 0;j--)
{
if (tokenarray[j].token == T_DIRECTIVE && (tokenarray[j].dirtype == DRT_HLLSTART || tokenarray[j].dirtype == DRT_HLLEND))
{
inExpr = TRUE;
if (tokenarray[j + 1].token == T_OP_BRACKET || tokenarray[j + 1].tokval == '(')
hasExprBracket = TRUE;
else
hasExprBracket = FALSE;
break;
}
else if ((tokenarray[j].token == T_DIRECTIVE && tokenarray[j].dirtype == DRT_INVOKE) ||
strcmp(tokenarray[j].string_ptr, "arginvoke") == 0 ||
strcmp(tokenarray[j].string_ptr, "_INVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_I") == 0 ||
strcmp(tokenarray[j].string_ptr, "_VINVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_SINVOKE") == 0 ||
strcmp(tokenarray[j].string_ptr, "_V") == 0 ||
strcmp(tokenarray[j].string_ptr, "_DEREF") == 0 ||
strcmp(tokenarray[j].string_ptr, "_DEREFI") == 0 ||
strcmp(tokenarray[j].string_ptr, "uinvoke") == 0)
{
inParam = TRUE;
break;
}
}
}
/* If we've identifed a Proc Name, there are several more cases where it must not be expanded */
if (i > 0 && (tokenarray[i - 1].token == T_COLON || tokenarray[i - 1].tokval == T_EQU || //(tokenarray[i - 1].token == T_COMMA && !inParam) ||
tokenarray[i - 1].tokval == T_INVOKE || tokenarray[i - 1].token == T_INSTRUCTION || tokenarray[i - 1].tokval == T_ADDR ||
tokenarray[i - 1].tokval == T_OFFSET || tokenarray[i - 1].tokval == T_PTR || tokenarray[i - 1].tokval == T_END ||
(tokenarray[i - 1].token == T_DIRECTIVE && tokenarray[i - 1].dirtype == DRT_DATADIR) || tokenarray[i - 1].token == T_UNARY_OPERATOR || tokenarray[i - 1].tokval == T_PROC ||
strcmp(tokenarray[i - 1].string_ptr,"arginvoke") == 0 || strcmp(tokenarray[i - 1].string_ptr, "@what") == 0)) continue;
// Allow expansion in an instruction.
if (tokenarray[i - 1].token == T_COMMA)
inExpr = TRUE;
// Allow expansion in a memory address [].
if (i > 0)
{
for (j = i - 1;j >= 0;j--)
{
if (tokenarray[j].token == T_OP_SQ_BRACKET)
{
inExpr = TRUE;
break;
}
}
}
/* Verify c-style procedure call has matching brackets */
opIdx = i + 1;
clIdx = VerifyBrackets(tokenarray, opIdx, inParam);
if (clIdx == -1)
return;
expandedCall = TRUE;
/* scan all tokens between opIdx and clIdx and replace & operator with ADDR */
for (j = opIdx; j < clIdx; j++)
{
if (*(tokenarray[j].string_ptr) == '&')
{
// token identifier begins with address of operator.
//strcpy(tokenarray[j].string_ptr, "ADDR ");
tokenarray[j].string_ptr = "ADDR ";
}
}
if (!inParam && !inExpr)
{
/* Shift all the tokens up to remove the close bracket and make space for invoke */
for (j = clIdx; j > i; j--)
tokenarray[j] = tokenarray[j - 1];
if (clIdx > opIdx + 1)
{
tokenarray[clIdx + 1].token = T_FINAL;
tokenarray[opIdx + 1].string_ptr = ",";
tokenarray[opIdx + 1].token = T_COMMA;
}
/* Proc with no params */
else
{
tokenarray[opIdx + 1].string_ptr = "";
tokenarray[opIdx + 1].token = T_FINAL;
}
tokenarray[i].token = T_DIRECTIVE;
tokenarray[i].tokval = T_INVOKE;
tokenarray[i].dirtype = DRT_INVOKE;
tokenarray[i].string_ptr = "invoke";
}
else
{
/* Shift all the tokens up to remove the close bracket and make space for invoke */
for (j = Token_Count; j > i; j--)
tokenarray[j] = tokenarray[j - 1];
/* Shift all the tokens up to add new open bracket */
for (j = Token_Count+1; j > i; j--)
tokenarray[j] = tokenarray[j - 1];
Token_Count+=2;
tokenarray[Token_Count].string_ptr = "";
tokenarray[Token_Count].token = T_FINAL;
if (clIdx > opIdx + 1)
{
tokenarray[opIdx + 2].string_ptr = ",";
tokenarray[opIdx + 2].token = T_COMMA;
}
else
{
tokenarray[opIdx + 2].string_ptr = " ";
}
tokenarray[i].token = T_ID;
tokenarray[i].tokval = 0;
tokenarray[i].dirtype = 0;
if (inExpr && !inParam)
{
tokenarray[i].string_ptr = "uinvoke";
tokenarray[i + 1].string_ptr = "(";
tokenarray[i + 1].token = '(';
uCnt++; // Increment count of uinvokes, as we only allow 1 per expression.
if (uCnt > 1)
{
EmitErr(MAX_C_CALLS);
}
}
else if (inParam)
{
tokenarray[i].string_ptr = "arginvoke(%%,%%,";
tokenarray[i + 1].string_ptr = "";
tokenarray[i + 1].token = 0;
}
}
i += 2;
/* Rebuild string */
for (j = 0;j <= Token_Count; j++)
{
if (tokenarray[j].tokval == T_PTR)
{
// Ensure we put a space between type and PTR UASM 2.50
strcpy(p, " ");
p++;
}
strcpy(p, tokenarray[j].string_ptr);
tokenarray[j].tokpos = p;
p += strlen(tokenarray[j].string_ptr);
if (j == 0 || tokenarray[j].tokval == T_ADDR || tokenarray[j].tokval == T_OFFSET)
{
strcpy(p, " ");
p++;
}
}
/* Reset string pointer*/
p = &newline;
}
}
}
/* Scan string and insert argument numbers */
// MyProc(MyProc3(), 20) MyProc(10, MyProc4())
// invoke MyProc,arginvoke(0,MyProc3),20
// invoke MyProc,10,arginvoke(0,MyProc4)
//find invoke, increment stackPt and set argno 1... for every comma not in () increment argno
//find uinvoke or arginvoke increment stackPt and set argno 1... for every comma after opIdx and before closeIdx and not in () increment argno... at closeIdx decrement StackPt
//at each step write argno to idxline string
//finally replace place-holder with idxline value
if (expandedCall)
{
p = &newline;
p = strstr(p, "invoke"); // even if the line only contains uinvoke, such as in an HLL expression this will still find it.
if (p != NULL)
{
bool inBrackets = FALSE;
j = (int)(p - (char *)&newline);
stackPt++;
idxStack[stackPt] = 0;
while (*p)
{
idxline[j++] = idxStack[stackPt];
if (*p == '(')
inBrackets = TRUE;
if (*p == ')')
inBrackets = FALSE;
if (!inBrackets && *p == ',')
idxStack[stackPt]++;
p++;
}