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proc.c
5545 lines (5102 loc) · 174 KB
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proc.c
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/****************************************************************************
*
* This code is Public Domain.
*
* ========================================================================
*
* Description: Processing of PROC/ENDP/LOCAL directives.
*
****************************************************************************/
#include <ctype.h>
#include "globals.h"
#include "memalloc.h"
#include "parser.h"
#include "segment.h"
#include "extern.h"
#include "equate.h"
#include "fixup.h"
#include "label.h"
#include "input.h"
#include "lqueue.h"
#include "tokenize.h"
#include "expreval.h"
#include "types.h"
#include "condasm.h"
#include "macro.h"
#include "proc.h"
#include "fastpass.h"
#include "listing.h"
#include "posndir.h"
#include "myassert.h"
#include "reswords.h"
#if AMD64_SUPPORT
#include "win64seh.h"
#endif
#ifdef __I86__
#define NUMQUAL (long)
#else
#define NUMQUAL
#endif
/* STACKPROBE: emit a conditional "call __chkstk" inside the prologue
* if stack space that is to be allocated exceeds 1000h bytes.
* this is currently implemented for 64-bit only,
* if OPTION FRAME:AUTO is set and the procedure has the FRAME attribute.
* it's not active by default because, in a few cases, the listing might get messed.
*/
#define STACKPROBE 0
extern const char szDgroup[];
extern uint_32 list_pos; /* current LST file position */
extern unsigned char regsize[6];
/*
* Masm allows nested procedures
* but they must NOT have params or locals
*/
/*
* calling convention FASTCALL supports:
* - Watcom C: registers e/ax,e/dx,e/bx,e/cx
* - MS fastcall 16-bit: registers ax,dx,bx (default for 16bit)
* - MS fastcall 32-bit: registers ecx,edx (default for 32bit)
* - Win64: registers rcx, rdx, r8, r9 (default for 64bit)
*/
struct dsym *CurrProc; /* current procedure */
int procidx; /* procedure index */
int CurrProcLine;
int XYZMMsize;
static struct proc_info *ProcStack;
/* v2.11: ProcStatus replaced DefineProc */
enum proc_status ProcStatus;
#if AMD64_SUPPORT
static bool endprolog_found;
static uint_8 unw_segs_defined;
static UNWIND_INFO unw_info;
static UNWIND_CODE unw_code[258]; /* 255 is the max */
#endif
#if AMD64_SUPPORT
/* @ReservedStack symbol; used when option W64F_AUTOSTACKSP has been set */
struct asym *sym_ReservedStack; /* max stack space required by INVOKE */
#endif
/* tables for FASTCALL support */
/* v2.07: 16-bit MS FASTCALL registers are AX, DX, BX.
* And params on stack are in PASCAL order.
*/
//static const enum special_token ms32_regs16[] = { T_CX, T_DX };
static const enum special_token ms32_regs16[] = { T_AX, T_DX, T_BX };
static const enum special_token ms32_regs32[] = { T_ECX,T_EDX };
static const enum special_token delphi_regs32[] = { T_EAX, T_EDX, T_ECX, };
/* v2.07: added */
static const int ms32_maxreg[] = {
sizeof(ms32_regs16) / sizeof(ms32_regs16[0]),
sizeof(ms32_regs32) / sizeof(ms32_regs32[0]),
};
static const int delphi_maxreg[] = {
sizeof(delphi_regs32) / sizeof(delphi_regs32[0]),
sizeof(delphi_regs32) / sizeof(delphi_regs32[0]),
};
#if OWFC_SUPPORT
static const enum special_token watc_regs8[] = { T_AL, T_DL, T_BL, T_CL };
static const enum special_token watc_regs16[] = { T_AX, T_DX, T_BX, T_CX };
static const enum special_token watc_regs32[] = { T_EAX, T_EDX, T_EBX, T_ECX };
static const enum special_token watc_regs_qw[] = { T_AX, T_BX, T_CX, T_DX };
#endif
#if AMD64_SUPPORT
static const enum special_token ms64_regs[] = { T_RCX, T_RDX, T_R8, T_R9 };
static const enum special_token sysV64_regs[] = { T_RDI, T_RSI, T_RDX, T_RCX, T_R8, T_R9 };
static const enum special_token sysV64_regs32[] = { T_EDI, T_ESI, T_EDX, T_ECX, T_R8D, T_R9D };
static const enum special_token sysV64_regs16[] = { T_DI, T_SI, T_DX, T_CX, T_R8W, T_R9W };
static const enum special_token sysV64_regs8[] = { T_DIL, T_SIL, T_DL, T_CL, T_R8B, T_R9B };
static const enum special_token sysV64_regsXMM[] = { T_XMM0, T_XMM1, T_XMM2, T_XMM3, T_XMM4, T_XMM5, T_XMM6, T_XMM7 };
static const enum special_token sysV64_regsYMM[] = { T_YMM0, T_YMM1, T_YMM2, T_YMM3, T_YMM4, T_YMM5, T_YMM6, T_YMM7 };
static const enum special_token sysV64_regsZMM[] = { T_ZMM0, T_ZMM1, T_ZMM2, T_ZMM3, T_ZMM4, T_ZMM5, T_ZMM6, T_ZMM7 };
/* win64 non-volatile GPRs: T_RBX, T_RBP, T_RSI, T_RDI, T_R12, T_R13, T_R14, T_R15 */
static const uint_16 win64_nvgpr = 0xF0E8;
/* win64 non-volatile XMM regs: XMM6-XMM15 */
static const uint_16 win64_nvxmm = 0xFFC0;
static const int sysv_maxreg[] = {
sizeof(sysV64_regs) / sizeof(sysV64_regs[0]),
sizeof(sysV64_regs) / sizeof(sysV64_regs[0]),
};
#endif
struct fastcall_conv {
int(*paramcheck)(struct dsym *, struct dsym *, int *);
void(*handlereturn)(struct dsym *, char *buffer);
};
struct vectorcall_conv {
int(*paramcheck)(struct dsym *, struct dsym *, int *);
void(*handlereturn)(struct dsym *, char *buffer);
};
struct sysvcall_conv {
int(*paramcheck)(struct dsym *, struct dsym *, int *, int *);
void(*handlereturn)(struct dsym *, char *buffer);
};
struct delphicall_conv {
int(*paramcheck)(struct dsym *, struct dsym *, int *);
void(*handlereturn)(struct dsym *, char *buffer);
};
static int ms32_pcheck(struct dsym *, struct dsym *, int *);
static void ms32_return(struct dsym *, char *);
#if OWFC_SUPPORT
static int watc_pcheck(struct dsym *, struct dsym *, int *);
static void watc_return(struct dsym *, char *);
#endif
#if AMD64_SUPPORT
static int ms64_pcheck(struct dsym *, struct dsym *, int *);
static void ms64_return(struct dsym *, char *);
#endif
#if SYSV_SUPPORT
static int sysv_pcheck(struct dsym *, struct dsym *, int *, int *);
static void sysv_return(struct dsym *, char *);
#endif
#if DELPHI_SUPPORT
static int delphi_pcheck(struct dsym *, struct dsym *, int *);
static void delphi_return(struct dsym *, char *);
#endif
static void check_proc_fpo(struct proc_info *);
/* table of fastcall types.
* must match order of enum fastcall_type!
* also see table in mangle.c!
*/
static const struct fastcall_conv fastcall_tab[] = {
{ ms32_pcheck, ms32_return }, /* FCT_MSC */
#if OWFC_SUPPORT
{ watc_pcheck, watc_return }, /* FCT_WATCOMC */
#endif
#if AMD64_SUPPORT
{ ms64_pcheck, ms64_return } /* FCT_WIN64 */
#endif
};
static const struct vectorcall_conv vectorcall_tab[] = {
{ ms32_pcheck, ms32_return }, /* FCT_MSC */
#if OWFC_SUPPORT
{ watc_pcheck, watc_return }, /* FCT_WATCOMC */
#endif
#if AMD64_SUPPORT
{ ms64_pcheck, ms64_return } /* FCT_WIN64 */
#endif
};
static const struct sysvcall_conv sysvcall_tab[] = {
{ ms32_pcheck, ms32_return }, /* FCT_MSC */
#if OWFC_SUPPORT
{ watc_pcheck, watc_return }, /* FCT_WATCOMC */
#endif
#if SYSV_SUPPORT
{ sysv_pcheck, sysv_return } /* FCT_WIN64 / SYSTEMV */
#endif
};
static const struct delphicall_conv delphicall_tab[] = {
{ delphi_pcheck, delphi_return }, /* FCT_MSC / DELPHI */
#if OWFC_SUPPORT
{ watc_pcheck, watc_return }, /* FCT_WATCOMC */
#endif
#if AMD64_SUPPORT
{ ms64_pcheck, ms64_return } /* FCT_WIN64 */
#endif
};
const enum special_token stackreg[] = { T_SP, T_ESP,
#if AMD64_SUPPORT
T_RSP
#endif
};
#if STACKBASESUPP==0
const enum special_token basereg[] = {
T_BP, T_EBP,
#if AMD64_SUPPORT
T_RBP
#endif
};
#else
uint_32 StackAdj; /* value of @StackBase variable */
int_32 StackAdjHigh;
#endif
#if AMD64_SUPPORT
static const char * const fmtstk0[] = {
"sub %r, %d",
"%r %d",
#if STACKPROBE
"mov %r, %d",
#endif
};
static const char * const fmtstk1[] = {
"sub %r, %d + %s",
"%r %d + %s",
#if STACKPROBE
"mov %r, %d + %s",
#endif
};
static const char * const fmtstk2[] = {
"lea %r, [%r + %d]",
};
static const char * const fmtstk3[] = {
"lea %r, [%r + %d + %s]",
};
#endif
#define ROUND_UP( i, r ) (((i)+((r)-1)) & ~((r)-1))
/* Declare proc functions */
static void SetLocalOffsets_RSP(struct proc_info *info);
static void SetLocalOffsets_RBP(struct proc_info *info);
static void pop_register(uint_16 *regist);
static void WriteSEHData(struct dsym *proc);
#if OWFC_SUPPORT
/* register usage for OW fastcall (register calling convention).
* registers are used for parameter size 1,2,4,8.
* if a parameter doesn't fit in a register, a register pair is used.
* however, valid register pairs are e/dx:e/ax and e/cx:e/bx only!
* if a parameter doesn't fit in a register pair, registers
* are used ax:bx:cx:dx!!!
* stack cleanup for OW fastcall: if the proc is VARARG, the caller
* will do the cleanup, else the called proc does it.
* in VARARG procs, all parameters are pushed onto the stack!
*/
static int watc_pcheck(struct dsym *proc, struct dsym *paranode, int *used)
/***************************************************************************/
{
static char regname[64];
static char regist[32];
int newflg;
int shift;
int firstreg;
uint_8 Ofssize = GetSymOfssize(&proc->sym);
int size = SizeFromMemtype(paranode->sym.mem_type, paranode->sym.Ofssize, paranode->sym.type);
/* v2.05: VARARG procs don't have register params */
if (proc->e.procinfo->has_vararg)
return(0);
if (size != 1 && size != 2 && size != 4 && size != 8)
return(0);
/* v2.05: rewritten. The old code didn't allow to "fill holes" */
if (size == 8) {
newflg = Ofssize ? 3 : 15;
shift = Ofssize ? 2 : 4;
}
else if (size == 4 && Ofssize == USE16) {
newflg = 3;
shift = 2;
}
else {
newflg = 1;
shift = 1;
}
/* scan if there's a free register (pair/quadrupel) */
for (firstreg = 0; firstreg < 4 && (newflg & *used); newflg <<= shift, firstreg += shift);
if (firstreg >= 4) /* exit if nothing is free */
return(0);
paranode->sym.state = SYM_TMACRO;
switch (size) {
case 1:
paranode->sym.regist[0] = watc_regs8[firstreg];
break;
case 2:
paranode->sym.regist[0] = watc_regs16[firstreg];
break;
case 4:
if (Ofssize) {
paranode->sym.regist[0] = watc_regs32[firstreg];
}
else {
paranode->sym.regist[0] = watc_regs16[firstreg];
paranode->sym.regist[1] = watc_regs16[firstreg + 1];
}
break;
case 8:
if (Ofssize) {
paranode->sym.regist[0] = watc_regs32[firstreg];
paranode->sym.regist[1] = watc_regs32[firstreg + 1];
}
else {
/* the AX:BX:CX:DX sequence is for 16-bit only.
* fixme: no support for codeview debug info yet;
* the S_REGISTER record supports max 2 registers only.
*/
for (firstreg = 0, regname[0] = NULLC; firstreg < 4; firstreg++) {
GetResWName(watc_regs_qw[firstreg], regname + strlen(regname));
if (firstreg != 3)
strcat(regname, "::");
}
}
}
if (paranode->sym.regist[1]) {
sprintf(regname, "%s::%s",
GetResWName(paranode->sym.regist[1], regist),
GetResWName(paranode->sym.regist[0], NULL));
}
else if (paranode->sym.regist[0]) {
GetResWName(paranode->sym.regist[0], regname);
}
*used |= newflg;
paranode->sym.string_ptr = LclAlloc(strlen(regname) + 1);
strcpy(paranode->sym.string_ptr, regname);
DebugMsg(("watc_pcheck(%s.%s): size=%u ptr=%u far=%u reg=%s\n", proc->sym.name, paranode->sym.name, size, paranode->sym.is_ptr, paranode->sym.isfar, regname));
return(1);
}
static void watc_return(struct dsym *proc, char *buffer)
/********************************************************/
{
int value;
value = 4 * CurrWordSize;
if (proc->e.procinfo->has_vararg == FALSE && proc->e.procinfo->parasize > value)
sprintf(buffer + strlen(buffer), "%d%c", proc->e.procinfo->parasize - value, ModuleInfo.radix != 10 ? 't' : NULLC);
return;
}
#endif
/* the MS Win32 fastcall ABI is simple: register ecx and edx are used,
* if the parameter's value fits into the register.
* there is no space reserved on the stack for a register backup.
* The 16-bit ABI uses registers AX, DX and BX - additional registers
* are pushed in PASCAL order (i.o.w.: left to right).
*/
static int ms32_pcheck(struct dsym *proc, struct dsym *paranode, int *used)
/***************************************************************************/
{
char regname[32];
int size = SizeFromMemtype(paranode->sym.mem_type, paranode->sym.Ofssize, paranode->sym.type);
/* v2.07: 16-bit has 3 register params (AX,DX,BX) */
//if ( size > CurrWordSize || *used >= 2 )
if (size > CurrWordSize || *used >= ms32_maxreg[ModuleInfo.Ofssize] || paranode->sym.mem_type == MT_REAL4 || paranode->sym.mem_type == MT_REAL8)
return(0);
paranode->sym.state = SYM_TMACRO;
/* v2.10: for codeview debug info, store the register index in the symbol */
paranode->sym.regist[0] = ModuleInfo.Ofssize ? ms32_regs32[*used] : ms32_regs16[*used];
GetResWName(ModuleInfo.Ofssize ? ms32_regs32[*used] : ms32_regs16[*used], regname);
if (paranode->sym.mem_type == MT_WORD || paranode->sym.mem_type == MT_SWORD)
{
if (_stricmp(regname, "ECX") == 0)
strcpy(regname, "cx");
else if (_stricmp(regname, "EDX") == 0)
strcpy(regname, "dx");
}
else if (paranode->sym.mem_type == MT_BYTE || paranode->sym.mem_type == MT_SBYTE)
{
if (_stricmp(regname, "ECX") == 0)
strcpy(regname, "cl");
else if (_stricmp(regname, "EDX") == 0)
strcpy(regname, "dl");
}
paranode->sym.string_ptr = LclAlloc(strlen(regname) + 1);
strcpy(paranode->sym.string_ptr, regname);
(*used)++;
return(1);
}
static void ms32_return(struct dsym *proc, char *buffer)
/********************************************************/
{
/* v2.07: changed */
//if( proc->e.procinfo->parasize > ( 2 * CurrWordSize ) )
// sprintf( buffer + strlen( buffer ), "%d%c", proc->e.procinfo->parasize - (2 * CurrWordSize), ModuleInfo.radix != 10 ? 't' : NULLC );
if (proc->e.procinfo->parasize > (ms32_maxreg[ModuleInfo.Ofssize] * CurrWordSize))
sprintf(buffer + strlen(buffer), "%d%c", proc->e.procinfo->parasize - (ms32_maxreg[ModuleInfo.Ofssize] * CurrWordSize), ModuleInfo.radix != 10 ? 't' : NULLC);
return;
}
/* v2.29: delphi uses 3 register params (EAX,EDX,ECX) */
static int delphi_pcheck(struct dsym *proc, struct dsym *paranode, int *used)
/***************************************************************************/
{
char regname[32];
int size = SizeFromMemtype(paranode->sym.mem_type, paranode->sym.Ofssize, paranode->sym.type);
int stack_size = size;
if (paranode->sym.mem_type == MT_REAL4 || paranode->sym.mem_type == MT_REAL8)
{
if (stack_size < CurrWordSize) stack_size = CurrWordSize;
proc->e.procinfo->ReservedStack += stack_size;
return (0);
}
if (size > CurrWordSize || *used >= delphi_maxreg[ModuleInfo.Ofssize])
{
if (stack_size < CurrWordSize) stack_size = CurrWordSize;
proc->e.procinfo->ReservedStack += stack_size;
return(0);
}
paranode->sym.state = SYM_TMACRO;
/* v2.29: for codeview debug info, store the register index in the symbol */
GetResWName(delphi_regs32[*used], regname);
if (paranode->sym.mem_type == MT_WORD || paranode->sym.mem_type == MT_SWORD)
{
if (_stricmp(regname, "EAX") == 0)
strcpy(regname, "ax");
else if (_stricmp(regname, "EDX") == 0)
strcpy(regname, "dx");
else if (_stricmp(regname, "ECX") == 0)
strcpy(regname, "cx");
}
else if (paranode->sym.mem_type == MT_BYTE || paranode->sym.mem_type == MT_SBYTE)
{
if (_stricmp(regname, "EAX") == 0)
strcpy(regname, "al");
else if (_stricmp(regname, "EDX") == 0)
strcpy(regname, "dl");
else if (_stricmp(regname, "ECX") == 0)
strcpy(regname, "cl");
}
paranode->sym.string_ptr = LclAlloc(strlen(regname) + 1);
strcpy(paranode->sym.string_ptr, regname);
(*used)++;
return(1);
}
static void delphi_return(struct dsym *proc, char *buffer)
/********************************************************/
{
if (proc->e.procinfo->parasize > (delphi_maxreg[ModuleInfo.Ofssize] * CurrWordSize))
sprintf(buffer + strlen(buffer), "%d%c", proc->e.procinfo->parasize - (delphi_maxreg[ModuleInfo.Ofssize] * CurrWordSize), ModuleInfo.radix != 10 ? 't' : NULLC);
return;
}
#if AMD64_SUPPORT
/* the MS Win64 fastcall ABI is strict: the first four parameters are
* passed in registers. If a parameter's value doesn't fit in a register,
* it's address is used instead. parameter 1 is stored in rcx/xmm0,
* then comes rdx/xmm1, r8/xmm2, r9/xmm3. The xmm regs are used if the
* param is a float/double (but not long double!).
* Additionally, there's space for the registers reserved by the caller on,
* the stack. On a function's entry it's located at [esp+8] for param 1,
* [esp+16] for param 2,... The parameter names refer to those stack
* locations, not to the register names.
*/
static int ms64_pcheck(struct dsym *proc, struct dsym *paranode, int *used)
/***************************************************************************/
{
/* since the parameter names refer the stack-backup locations,
* there's nothing to do here!
* That is, if a parameter's size is > 8, it has to be changed
* to a pointer. This is to be done yet.
*/
return(0);
}
static void ms64_return(struct dsym *proc, char *buffer)
/********************************************************/
{
/* nothing to do, the caller cleans the stack */
return;
}
#endif
static void pushitem(void *stk, void *elmt)
/*******************************************/
{
void **stack = stk;
struct qnode *node;
node = LclAlloc(sizeof(struct qnode));
node->next = *stack;
node->elmt = elmt;
*stack = node;
}
static void *popitem(void *stk)
/*******************************/
{
void **stack = stk;
struct qnode *node;
void *elmt;
node = (struct qnode *)(*stack);
*stack = node->next;
elmt = (void *)node->elmt;
LclFree(node);
return(elmt);
}
static void push_proc(struct dsym *proc)
/****************************************/
{
if (Parse_Pass == PASS_1) /* get the locals stored so far */
SymGetLocal((struct asym *)proc);
pushitem(&ProcStack, proc);
return;
}
static struct dsym *pop_proc(void)
/**********************************/
{
if (ProcStack == NULL)
return(NULL);
return((struct dsym *)popitem(&ProcStack));
}
/*
* LOCAL directive. Syntax:
* LOCAL symbol[,symbol]...
* symbol:name [[count]] [:[type]]
* count: number of array elements, default is 1
* type: qualified type [simple type, structured type, ptr to simple/structured type]
*/
ret_code LocalDir(int i, struct asm_tok tokenarray[])
/*****************************************************/
{
char *name;
struct dsym *local;
struct dsym *curr;
struct proc_info *info;
struct qualified_type ti;
if (Parse_Pass != PASS_1) /* everything is done in pass 1 */
return(NOT_ERROR);
DebugMsg1(("LocalDir(%u) entry\n", i));
if (!(ProcStatus & PRST_PROLOGUE_NOT_DONE) || CurrProc == NULL) {
return(EmitError(PROC_MACRO_MUST_PRECEDE_LOCAL));
}
info = CurrProc->e.procinfo;
#if STACKBASESUPP
/* ensure the fpo bit is set - it's too late to set it in write_prologue().
* Note that the fpo bit is set only IF there are locals or arguments.
* fixme: what if pass > 1?
*/
if (GetRegNo(info->basereg) == 4) {
info->fpo = TRUE;
ProcStatus |= PRST_FPO;
}
#endif
i++; /* go past LOCAL */
do {
if (tokenarray[i].token != T_ID) {
return(EmitErr(SYNTAX_ERROR_EX, tokenarray[i].string_ptr));
}
name = tokenarray[i].string_ptr;
DebugMsg1(("LocalDir: item=%s\n", tokenarray[i].tokpos));
ti.symtype = NULL;
ti.is_ptr = 0;
ti.ptr_memtype = MT_EMPTY;
if (SIZE_DATAPTR & (1 << ModuleInfo.model))
ti.is_far = TRUE;
else
ti.is_far = FALSE;
ti.Ofssize = ModuleInfo.Ofssize;
#if 0
/* since v1.95 a local hash table is used. No need to search the
* symbol before SymLCreate() is called. SymLCreate() will display
* an error if the symbol is already defined.
*/
if ((local = (struct dsym *)SymSearch(name)) && local->sym.state != SYM_UNDEFINED) {
return(EmitErr(SYMBOL_ALREADY_DEFINED, name));
}
#endif
local = (struct dsym *)SymLCreate(name);
if (!local) { /* if it failed, an error msg has been written already */
DebugMsg(("LocalDir: SymLCreate( %s ) failed\n", name));
return(ERROR);
}
if (ModuleInfo.win64_flags & W64F_SMART) local->sym.isparam = FALSE; //clear isparam var, added by habran
local->sym.state = SYM_STACK;
local->sym.isdefined = TRUE;
local->sym.total_length = 1; /* v2.04: added */
switch (ti.Ofssize) {
case USE16:
local->sym.mem_type = MT_WORD;
ti.size = sizeof(uint_16);
break;
#if AMD64_SUPPORT
/* v2.08: default type for locals in 64-bit is still DWORD (at least in Win64) */
//case USE64: local->sym.mem_type = MT_QWORD; break;
//ti.size = sizeof( uint_64 );
#endif
default:
local->sym.mem_type = MT_DWORD;
ti.size = sizeof(uint_32);
break;
}
i++; /* go past name */
/* get the optional index factor: local name[xx]:... */
if (tokenarray[i].token == T_OP_SQ_BRACKET) {
int j;
struct expr opndx;
i++; /* go past '[' */
/* scan for comma or colon. this isn't really necessary,
* but will prevent the expression evaluator from emitting
* confusing error messages.
*/
for (j = i; j < Token_Count; j++)
if (tokenarray[j].token == T_COMMA ||
tokenarray[j].token == T_COLON)
break;
if (ERROR == EvalOperand(&i, tokenarray, j, &opndx, 0))
return(ERROR);
if (opndx.kind != EXPR_CONST) {
EmitError(CONSTANT_EXPECTED);
opndx.value = 1;
}
/* zero is allowed as value! */
local->sym.total_length = opndx.value;
local->sym.isarray = TRUE;
if (tokenarray[i].token == T_CL_SQ_BRACKET) {
i++; /* go past ']' */
}
else {
EmitError(EXPECTED_CL_SQ_BRACKET);
}
}
/* get the optional type: local name[xx]:type */
if (tokenarray[i].token == T_COLON) {
i++;
if (GetQualifiedType(&i, tokenarray, &ti) == ERROR)
return(ERROR);
local->sym.mem_type = ti.mem_type;
if (ti.mem_type == MT_TYPE) {
local->sym.type = ti.symtype;
}
else {
local->sym.target_type = ti.symtype;
}
DebugMsg1(("LocalDir: memtype=%X, type=%s, size=%u*%u\n",
local->sym.mem_type,
ti.symtype ? ti.symtype->name : "NULL",
ti.size, local->sym.total_length));
}
local->sym.is_ptr = ti.is_ptr;
local->sym.isfar = ti.is_far;
local->sym.Ofssize = ti.Ofssize;
local->sym.ptr_memtype = ti.ptr_memtype;
local->sym.total_size = ti.size * local->sym.total_length;
/* v2.12: address calculation is now done in SetLocalOffsets() */
if (info->locallist == NULL) {
info->locallist = local;
}
else {
for (curr = info->locallist; curr->nextlocal; curr = curr->nextlocal);
curr->nextlocal = local;
}
if (tokenarray[i].token != T_FINAL)
if (tokenarray[i].token == T_COMMA) {
if ((i + 1) < Token_Count)
i++;
}
else {
return(EmitErr(EXPECTING_COMMA, tokenarray[i].tokpos));
}
} while (i < Token_Count);
return(NOT_ERROR);
}
#if STACKBASESUPP
/* read/write value of @StackBase variable */
void UpdateStackBase(struct asym *sym, struct expr *opnd)
/*********************************************************/
{
if (opnd) {
StackAdj = opnd->uvalue;
StackAdjHigh = opnd->hvalue;
}
sym->value = StackAdj;
sym->value3264 = StackAdjHigh;
}
/* read value of @ProcStatus variable */
void UpdateProcStatus(struct asym *sym, struct expr *opnd)
/**********************************************************/
{
sym->value = (CurrProc ? ProcStatus : 0);
}
#endif
/* parse parameters of a PROC/PROTO.
* Called in pass one only.
* i=start parameters
*/
static ret_code ParseParams(struct dsym *proc, int i, struct asm_tok tokenarray[], bool IsPROC)
/***********************************************************************************************/
{
char *name;
struct asym *sym;
int cntParam;
int offset = 0;
int fcint = 0;
int vecint = 0;
struct qualified_type ti;
bool is_vararg;
bool init_done;
struct dsym *paranode;
struct dsym *paracurr;
int curr;
/*
* find "first" parameter ( that is, the first to be pushed in INVOKE ).
*/
if (proc->sym.langtype == LANG_C ||
proc->sym.langtype == LANG_SYSCALL ||
proc->sym.langtype == LANG_DELPHICALL ||
(proc->sym.langtype == LANG_FASTCALL && ModuleInfo.Ofssize != USE64) ||
(proc->sym.langtype == LANG_VECTORCALL && ModuleInfo.Ofssize != USE64) ||
(proc->sym.langtype == LANG_SYSVCALL && ModuleInfo.Ofssize != USE64) ||
proc->sym.langtype == LANG_STDCALL)
for (paracurr = proc->e.procinfo->paralist; paracurr && paracurr->nextparam; paracurr = paracurr->nextparam);
else
paracurr = proc->e.procinfo->paralist;
/* v2.11: proc_info.init_done has been removed, sym.isproc flag is used instead */
init_done = proc->sym.isproc;
for (cntParam = 0; tokenarray[i].token != T_FINAL; cntParam++) {
if (tokenarray[i].token == T_ID) {
name = tokenarray[i++].string_ptr;
}
else if (IsPROC == FALSE && tokenarray[i].token == T_COLON) {
if (paracurr)
name = paracurr->sym.name;
else
name = "";
}
else {
/* PROC needs a parameter name, PROTO accepts <void> also */
DebugMsg(("ParseParams: name missing/invalid for parameter %u, i=%u\n", cntParam + 1, i));
return(EmitErr(SYNTAX_ERROR_EX, tokenarray[i].string_ptr));
}
ti.symtype = NULL;
ti.is_ptr = 0;
ti.ptr_memtype = MT_EMPTY;
/* v2.02: init is_far depending on memory model */
//ti.is_far = FALSE;
if (SIZE_DATAPTR & (1 << ModuleInfo.model))
ti.is_far = TRUE;
else
ti.is_far = FALSE;
ti.Ofssize = ModuleInfo.Ofssize;
ti.size = CurrWordSize;
is_vararg = FALSE;
/* read colon. It's optional for PROC.
* Masm also allows a missing colon for PROTO - if there's
* just one parameter. Probably a Masm bug.
* Uasm always require a colon for PROTO.
*/
if (tokenarray[i].token != T_COLON) {
if (IsPROC == FALSE) {
return(EmitError(COLON_EXPECTED));
}
switch (ti.Ofssize) {
case USE16:
ti.mem_type = MT_WORD; break;
#if AMD64_SUPPORT
/* v2.08: default size for arguments is DWORD in 64-bit ( Win64 ) */
//case USE64: ti.mem_type = MT_QWORD; break;
#endif
default:
ti.mem_type = MT_DWORD; break;
}
}
else {
i++;
if ((tokenarray[i].token == T_RES_ID) && (tokenarray[i].tokval == T_VARARG)) {
switch (proc->sym.langtype) {
case LANG_NONE:
case LANG_BASIC:
case LANG_FORTRAN:
case LANG_PASCAL:
case LANG_STDCALL:
return(EmitError(VARARG_REQUIRES_C_CALLING_CONVENTION));
}
/* v2.05: added check */
if (tokenarray[i + 1].token != T_FINAL)
EmitError(VARARG_PARAMETER_MUST_BE_LAST);
else
is_vararg = TRUE;
ti.mem_type = MT_EMPTY;
ti.size = 0;
i++;
}
else {
if (GetQualifiedType(&i, tokenarray, &ti) == ERROR)
return(ERROR);
}
}
/* check if parameter name is defined already */
if ((IsPROC) && (sym = SymSearch(name)) && sym->state != SYM_UNDEFINED) {
DebugMsg(("ParseParams: %s defined already, state=%u, local=%u\n", sym->name, sym->state, sym->scoped));
return(EmitErr(SYMBOL_REDEFINITION, name));
}
/* redefinition? */
if (paracurr) {
struct asym *to;
struct asym *tn;
char oo;
char on;
for (tn = ti.symtype; tn && tn->type; tn = tn->type);
/* v2.12: don't assume pointer type if mem_type is != MT_TYPE!
* regression test proc9.asm.
*/
//to = ( paracurr->sym.mem_type == MT_TYPE ) ? paracurr->sym.type : paracurr->sym.target_type;
if (paracurr->sym.mem_type == MT_TYPE)
to = paracurr->sym.type;
else
to = (paracurr->sym.mem_type == MT_PTR ? paracurr->sym.target_type : NULL);
for (; to && to->type; to = to->type);
oo = (paracurr->sym.Ofssize != USE_EMPTY) ? paracurr->sym.Ofssize : ModuleInfo.Ofssize;
on = (ti.Ofssize != USE_EMPTY) ? ti.Ofssize : ModuleInfo.Ofssize;
if (ti.mem_type != paracurr->sym.mem_type ||
(ti.mem_type == MT_TYPE && tn != to) ||
(ti.mem_type == MT_PTR &&
(ti.is_far != paracurr->sym.isfar ||
on != oo ||
ti.ptr_memtype != paracurr->sym.ptr_memtype ||
tn != to))) {
/* UASM 2.46.10 prevent symbols that are moved to stack whose size is turned from ptr to machine word size from breaking the proto vs proc defition of a ptr type */
/* UASM 2.47.1 added additional types */
if (ti.mem_type == MT_PTR && paracurr->sym.state == SYM_STACK &&
(paracurr->sym.mem_type == MT_QWORD && CurrWordSize == 8) ||
(paracurr->sym.mem_type == MT_OWORD && CurrWordSize == 8) ||
(paracurr->sym.mem_type == MT_YMMWORD && CurrWordSize == 8) ||
(paracurr->sym.mem_type == MT_ZMMWORD && CurrWordSize == 8) ||
(paracurr->sym.mem_type == MT_DWORD && CurrWordSize == 4) ||
(paracurr->sym.mem_type == MT_OWORD && CurrWordSize == 4) ||
(paracurr->sym.mem_type == MT_YMMWORD && CurrWordSize == 4) ||
(paracurr->sym.mem_type == MT_ZMMWORD && CurrWordSize == 4))
{
}
else if (paracurr->sym.mem_type == MT_PTR && paracurr->sym.state == SYM_STACK &&
(ti.mem_type == MT_QWORD && CurrWordSize == 8) ||
(ti.mem_type == MT_OWORD && CurrWordSize == 8) ||
(ti.mem_type == MT_YMMWORD && CurrWordSize == 8) ||
(ti.mem_type == MT_ZMMWORD && CurrWordSize == 8) ||
(ti.mem_type == MT_DWORD && CurrWordSize == 4) ||
(ti.mem_type == MT_OWORD && CurrWordSize == 4) ||
(ti.mem_type == MT_YMMWORD && CurrWordSize == 4) ||
(ti.mem_type == MT_ZMMWORD && CurrWordSize == 4))
{
}
else
{
DebugMsg(("ParseParams: old-new memtype=%X-%X type=%X(%s)-%X(%s) far=%u-%u ind=%u-%u ofss=%d-%d pmt=%X-%X\n",
paracurr->sym.mem_type, ti.mem_type,
(paracurr->sym.mem_type == MT_TYPE) ? paracurr->sym.type : paracurr->sym.target_type,
(paracurr->sym.mem_type == MT_TYPE) ? paracurr->sym.type->name : paracurr->sym.target_type ? paracurr->sym.target_type->name : "",
ti.symtype, ti.symtype ? ti.symtype->name : "",
paracurr->sym.isfar, ti.is_far,
paracurr->sym.is_ptr, ti.is_ptr,
paracurr->sym.Ofssize, ti.Ofssize,
paracurr->sym.ptr_memtype, ti.ptr_memtype));
EmitErr(CONFLICTING_PARAMETER_DEFINITION, name);
}
}
if (IsPROC) {
DebugMsg1(("ParseParams: calling SymAddLocal(%s, %s)\n", paracurr->sym.name, name));
/* it has been checked already that the name isn't found - SymAddLocal() shouldn't fail */
SymAddLocal(¶curr->sym, name);
}
/* set paracurr to next parameter */
if (proc->sym.langtype == LANG_C ||
proc->sym.langtype == LANG_SYSCALL ||
proc->sym.langtype == LANG_DELPHICALL ||
(proc->sym.langtype == LANG_FASTCALL && ti.Ofssize != USE64) ||
(proc->sym.langtype == LANG_VECTORCALL && ti.Ofssize != USE64) ||
(proc->sym.langtype == LANG_SYSVCALL && ti.Ofssize != USE64) ||
proc->sym.langtype == LANG_STDCALL) {
struct dsym *l;
for (l = proc->e.procinfo->paralist;
l && (l->nextparam != paracurr);
l = l->nextparam);
paracurr = l;
}
else
paracurr = paracurr->nextparam;
}
else if (init_done == TRUE) {
/* second definition has more parameters than first */
DebugMsg(("ParseParams: different param count\n"));
return(EmitErr(CONFLICTING_PARAMETER_DEFINITION, ""));
}
else {
if (IsPROC) {
paranode = (struct dsym *)SymLCreate(name);
}
else
paranode = (struct dsym *)SymAlloc("");/* for PROTO, no param name needed */
if (paranode == NULL) { /* error msg has been displayed already */
DebugMsg(("ParseParams: SymLCreate(%s) failed\n", name));
return(ERROR);
}
paranode->sym.isdefined = TRUE;
paranode->sym.mem_type = ti.mem_type;