Source code of Windows XP (NT5)
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/*** unasm.c - Unassemble AML file and convert to Intel .ASM file
*
* Copyright (c) 1996,1997 Microsoft Corporation
* Author: Michael Tsang (MikeTs)
* Created: 10/01/97
*
* MODIFICATION HISTORY
*/
#include "aslp.h"
/***LP UnAsmFile - Unassemble AML file
*
* ENTRY
* pszAMLName -> AML file name
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmFile(PSZ pszAMLName, FILE *pfileOut)
{
int rc = ASLERR_NONE;
PBYTE pb = NULL;
DWORD dwAddr = 0;
int fhAML = 0;
ULONG dwLen = 0;
ENTER((1, "UnAsmFile(AMLName=%s,pfileOut=%p)\n",
pszAMLName, pfileOut));
ASSERT(pfileOut != NULL);
if (gpszAMLFile != NULL)
{
if ((fhAML = _open(gpszAMLFile, _O_BINARY | _O_RDONLY)) == -1)
{
ERROR(("UnAsmFile: failed to open AML file - %s", gpszAMLFile));
rc = ASLERR_OPEN_FILE;
}
else if ((pb = MEMALLOC(sizeof(DESCRIPTION_HEADER))) == NULL)
{
ERROR(("UnAsmFile: failed to allocate description header block"));
rc = ASLERR_OUT_OF_MEM;
}
else if (_read(fhAML, pb, sizeof(DESCRIPTION_HEADER)) !=
sizeof(DESCRIPTION_HEADER))
{
ERROR(("UnAsmFile: failed to read description header block"));
rc = ASLERR_READ_FILE;
}
else if (_lseek(fhAML, 0, SEEK_SET) == -1)
{
ERROR(("UnAsmFile: failed seeking to beginning of AML file"));
rc = ASLERR_SEEK_FILE;
}
else
{
dwLen = ((PDESCRIPTION_HEADER)pb)->Length;
MEMFREE(pb);
if ((pb = MEMALLOC(dwLen)) == NULL)
{
ERROR(("UnAsmFile: failed to allocate AML file buffer"));
rc = ASLERR_OUT_OF_MEM;
}
else if (_read(fhAML, pb, dwLen) != (int)dwLen)
{
ERROR(("UnAsmFile: failed to read AML file"));
rc = ASLERR_OUT_OF_MEM;
}
}
}
#ifdef __UNASM
else
{
DWORD dwTableSig = (gdwfASL & ASLF_DUMP_NONASL)? *((PDWORD)pszAMLName):
*((PDWORD)gpszTabSig);
ASSERT(gpszTabSig != NULL);
if ((pb = GetTableBySig(dwTableSig, &dwAddr)) != NULL)
{
dwLen = ((PDESCRIPTION_HEADER)pb)->Length;
}
else
{
rc = ASLERR_GET_TABLE;
}
}
#endif
if (rc == ASLERR_NONE)
{
rc = UnAsmAML(pszAMLName, dwAddr, pb, pfileOut);
}
if (pb != NULL)
{
MEMFREE(pb);
}
if (fhAML != 0)
{
_close(fhAML);
}
EXIT((1, "UnAsmFile=%d\n", rc));
return rc;
} //UnAsmFile
/***LP BuildNameSpace - Do a NameSpace building pass
*
* ENTRY
* pszAMLName -> AML file name
* dwAddr - physical address of table
* pb -> AML buffer
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL BuildNameSpace(PSZ pszAMLName, DWORD dwAddr, PBYTE pb)
{
#define MAX_NUM_NAMES 4
int rc = ASLERR_NONE;
static PSZ pszNames[MAX_NUM_NAMES] = {NULL};
static DWORD adwAddr[MAX_NUM_NAMES] = {0};
int i;
ENTER((2, "BuildNameSpace(AMLName=%s,Addr=%x,pb=%p)\n",
pszAMLName, dwAddr, pb));
for (i = 0; i < MAX_NUM_NAMES; ++i)
{
if (pszNames[i] == NULL)
{
DWORD dwLen = ((PDESCRIPTION_HEADER)pb)->Length;
//
// Do a pass to build NameSpace.
//
pszNames[i] = pszAMLName;
adwAddr[i] = dwAddr;
pb += sizeof(DESCRIPTION_HEADER);
rc = UnAsmScope(&pb, pb + dwLen - sizeof(DESCRIPTION_HEADER), NULL);
break;
}
else if ((strcmp(pszAMLName, pszNames[i]) == 0) &&
(dwAddr == adwAddr[i]))
{
break;
}
}
if (i >= MAX_NUM_NAMES)
{
ERROR(("BuildNameSpace: Too many AML tables"));
rc = ASLERR_INTERNAL_ERROR;
}
EXIT((2, "BuildNameSpace=%d\n", rc));
return rc;
} //BuildNameSpace
/***LP UnAsmAML - Unassemble AML buffer
*
* ENTRY
* pszAMLName -> AML file name
* dwAddr - physical address of table
* pb -> AML buffer
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmAML(PSZ pszAMLName, DWORD dwAddr, PBYTE pb, FILE *pfileOut)
{
int rc = ASLERR_NONE;
PDESCRIPTION_HEADER pdh = (PDESCRIPTION_HEADER)pb;
ENTER((2, "UnAsmAML(AMLName=%s,Addr=%x,pb=%p,pfileOut=%p)\n",
pszAMLName, dwAddr, pb, pfileOut));
ASSERT(gpnsNameSpaceRoot != NULL);
gpnsCurrentOwner = NULL;
gpnsCurrentScope = gpnsNameSpaceRoot;
if (ComputeDataChkSum(pb, pdh->Length) != 0)
{
ERROR(("UnAsmAML: failed to verify AML checksum"));
rc = ASLERR_CHECKSUM;
}
else if ((rc = BuildNameSpace(pszAMLName, dwAddr, pb)) == ASLERR_NONE)
{
gpbOpTop = gpbOpBegin = pb;
if ((rc = UnAsmHeader(pszAMLName, pdh, pfileOut)) == ASLERR_NONE)
{
pb += sizeof(DESCRIPTION_HEADER);
rc = UnAsmScope(&pb, pb + pdh->Length - sizeof(DESCRIPTION_HEADER),
pfileOut);
if ((rc == ASLERR_NONE) && (pfileOut != NULL))
{
fprintf(pfileOut, "\n");
}
}
}
EXIT((2, "UnAsmAML=%d\n", rc));
return rc;
} //UnAsmAML
/***LP UnAsmHeader - Unassemble table header
*
* ENTRY
* pszAMLName -> AML file name
* pdh -> DESCRIPTION_HEADER
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmHeader(PSZ pszAMLName, PDESCRIPTION_HEADER pdh, FILE *pfileOut)
{
int rc = ASLERR_NONE;
char szSig[sizeof(pdh->Signature) + 1] = {0};
char szOEMID[sizeof(pdh->OEMID) + 1] = {0};
char szOEMTableID[sizeof(pdh->OEMTableID) + 1] = {0};
char szCreatorID[sizeof(pdh->CreatorID) + 1] = {0};
ENTER((2, "UnAsmHeader(AMLName=%s,pdh=%p,pfileOut=%p)\n",
pszAMLName, pdh, pfileOut));
if (pfileOut != NULL)
{
strncpy(szSig, (PSZ)&pdh->Signature, sizeof(pdh->Signature));
strncpy(szOEMID, (PSZ)pdh->OEMID, sizeof(pdh->OEMID));
strncpy(szOEMTableID, (PSZ)pdh->OEMTableID, sizeof(pdh->OEMTableID));
strncpy(szCreatorID, (PSZ)pdh->CreatorID, sizeof(pdh->CreatorID));
if ((gdwfASL & ASLF_GENASM) || !(gdwfASL & ASLF_GENSRC))
{
fprintf(pfileOut, "; ");
}
fprintf(pfileOut, "// CreatorID=%s\tCreatorRev=%x.%x.%d\n",
szCreatorID, pdh->CreatorRev >> 24,
(pdh->CreatorRev >> 16) & 0xff, pdh->CreatorRev & 0xffff);
if ((gdwfASL & ASLF_GENASM) || !(gdwfASL & ASLF_GENSRC))
{
fprintf(pfileOut, "; ");
}
fprintf(pfileOut, "// FileLength=%d\tFileChkSum=0x%x\n\n",
pdh->Length, pdh->Checksum);
if ((gdwfASL & ASLF_GENASM) || !(gdwfASL & ASLF_GENSRC))
{
fprintf(pfileOut, "; ");
}
fprintf(pfileOut, "DefinitionBlock(\"%s\", \"%s\", 0x%02x, \"%s\", \"%s\", 0x%08x)",
pszAMLName, szSig, pdh->Revision, szOEMID, szOEMTableID,
pdh->OEMRevision);
}
EXIT((2, "UnAsmHeader=%d\n", rc));
return rc;
} //UnAsmHeader
/***LP DumpBytes - Dump byte stream in ASM file
*
* ENTRY
* pb -> buffer
* dwLen - length to dump
* pfileOut -> ASM output file
*
* EXIT
* None
*/
VOID LOCAL DumpBytes(PBYTE pb, DWORD dwLen, FILE *pfileOut)
{
int i;
#define MAX_LINE_BYTES 8
ENTER((2, "DumpBytes(pb=%p,Len=%x,pfileOut=%p)\n", pb, dwLen, pfileOut));
while (dwLen > 0)
{
fprintf(pfileOut, "\tdb\t0%02xh", *pb);
for (i = 1; i < MAX_LINE_BYTES; ++i)
{
if ((int)dwLen - i > 0)
{
fprintf(pfileOut, ", 0%02xh", pb[i]);
}
else
{
fprintf(pfileOut, " ");
}
}
fprintf(pfileOut, "\t; ");
for (i = 0; (dwLen > 0) && (i < MAX_LINE_BYTES); ++i)
{
fprintf(pfileOut, "%c",
((*pb >= ' ') && (*pb <= '~'))? *pb: '.');
dwLen--;
pb++;
}
fprintf(pfileOut, "\n");
}
fprintf(pfileOut, "\n");
EXIT((2, "DumpBytes!\n"));
} //DumpBytes
/***LP DumpCode - Dump code stream in ASM file
*
* ENTRY
* pbOp -> Opcode pointer
* pfileOut -> ASM output file
*
* EXIT
* None
*/
VOID LOCAL DumpCode(PBYTE pbOp, FILE *pfileOut)
{
ENTER((2, "DumpCode(pbOp=%p,pfileOut=%p)\n", pbOp, pfileOut));
if (pfileOut != NULL)
{
if (gdwfASL & ASLF_GENASM)
{
if (gpbOpBegin != pbOp)
{
fprintf(pfileOut, "\n");
fprintf(pfileOut, "; %08x:\n", gpbOpBegin - gpbOpTop);
DumpBytes(gpbOpBegin, (DWORD)(pbOp - gpbOpBegin), pfileOut);
gpbOpBegin = pbOp;
}
}
else
{
fprintf(pfileOut, "\n");
}
}
EXIT((2, "DumpCode!\n"));
} //DumpCode
/***LP PrintIndent - Print indent level
*
* ENTRY
* iLevel - indent level
* pfileOut -> ASM output file
*
* EXIT
* None
*/
VOID LOCAL PrintIndent(int iLevel, FILE *pfileOut)
{
int i;
ENTER((3, "PrintIndent(Level=%d,pfileOut=%p)\n", iLevel, pfileOut));
if (pfileOut != NULL)
{
if ((gdwfASL & ASLF_GENASM) || !(gdwfASL & ASLF_GENSRC))
{
fprintf(pfileOut, "; ");
}
for (i = 0; i < iLevel; ++i)
{
fprintf(pfileOut,
((gdwfASL & ASLF_GENASM) || !(gdwfASL & ASLF_GENSRC))?
"| ": " ");
}
}
EXIT((3, "PrintIndent!\n"));
} //PrintIndent
/***LP FindOpClass - Find opcode class of extended opcode
*
* ENTRY
* bOp - opcode
* pOpTable -> opcode table
*
* EXIT-SUCCESS
* returns opcode class
* EXIT-FAILURE
* returns OPCLASS_INVALID
*/
BYTE LOCAL FindOpClass(BYTE bOp, POPMAP pOpTable)
{
BYTE bOpClass = OPCLASS_INVALID;
ENTER((2, "FindOpClass(Op=%x,pOpTable=%x)\n", bOp, pOpTable));
while (pOpTable->bOpClass != 0)
{
if (bOp == pOpTable->bExOp)
{
bOpClass = pOpTable->bOpClass;
break;
}
else
pOpTable++;
}
EXIT((2, "FindOpClass=%x\n", bOpClass));
return bOpClass;
} //FindOpClass
/***LP FindOpTerm - Find opcode in TermTable
*
* ENTRY
* dwOpcode - opcode
*
* EXIT-SUCCESS
* returns TermTable entry pointer
* EXIT-FAILURE
* returns NULL
*/
PASLTERM LOCAL FindOpTerm(DWORD dwOpcode)
{
PASLTERM pterm = NULL;
int i;
ENTER((2, "FindOpTerm(Opcode=%x)\n", dwOpcode));
for (i = 0; TermTable[i].pszID != NULL; ++i)
{
if ((TermTable[i].dwOpcode == dwOpcode) &&
(TermTable[i].dwfTermClass &
(TC_CONST_NAME | TC_SHORT_NAME | TC_NAMESPACE_MODIFIER |
TC_DATA_OBJECT | TC_NAMED_OBJECT | TC_OPCODE_TYPE1 |
TC_OPCODE_TYPE2)))
{
break;
}
}
if (TermTable[i].pszID != NULL)
{
pterm = &TermTable[i];
}
EXIT((2, "FindOpTerm=%p (Term=%s)\n", pterm, pterm? pterm->pszID: ""));
return pterm;
} //FindOpTerm
/***LP FindKeywordTerm - Find keyword in TermTable
*
* ENTRY
* cKWGroup - keyword group
* bData - data to match keyword
*
* EXIT-SUCCESS
* returns TermTable entry pointer
* EXIT-FAILURE
* returns NULL
*/
PASLTERM LOCAL FindKeywordTerm(char cKWGroup, BYTE bData)
{
PASLTERM pterm = NULL;
int i;
ENTER((2, "FindKeywordTerm(cKWGroup=%c,Data=%x)\n", cKWGroup, bData));
for (i = 0; TermTable[i].pszID != NULL; ++i)
{
if ((TermTable[i].dwfTermClass == TC_KEYWORD) &&
(TermTable[i].pszArgActions[0] == cKWGroup) &&
((bData & (BYTE)(TermTable[i].dwTermData >> 8)) ==
(BYTE)(TermTable[i].dwTermData & 0xff)))
{
break;
}
}
if (TermTable[i].pszID != NULL)
{
pterm = &TermTable[i];
}
EXIT((2, "FindKeywordTerm=%p (Term=%s)\n", pterm, pterm? pterm->pszID: ""));
return pterm;
} //FindKeywordTerm
/***LP UnAsmScope - Unassemble a scope
*
* ENTRY
* ppbOp -> Opcode pointer
* pbEnd -> end of scope
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmScope(PBYTE *ppbOp, PBYTE pbEnd, FILE *pfileOut)
{
int rc = ASLERR_NONE;
ENTER((2, "UnAsmScope(pbOp=%p,pbEnd=%p,pfileOut=%p)\n",
*ppbOp, pbEnd, pfileOut));
DumpCode(*ppbOp, pfileOut);
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "{\n");
}
giLevel++;
while ((rc == ASLERR_NONE) && (*ppbOp < pbEnd))
{
PrintIndent(giLevel, pfileOut);
rc = UnAsmOpcode(ppbOp, pfileOut);
if (gpbOpBegin != *ppbOp)
{
DumpCode(*ppbOp, pfileOut);
}
else if (pfileOut != NULL)
{
fprintf(pfileOut, "\n");
}
}
giLevel--;
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "}");
}
EXIT((2, "UnAsmScope=%d\n", rc));
return rc;
} //UnAsmScope
/***LP UnAsmOpcode - Unassemble an Opcode
*
* ENTRY
* ppbOp -> Opcode pointer
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmOpcode(PBYTE *ppbOp, FILE *pfileOut)
{
int rc = ASLERR_NONE;
DWORD dwOpcode;
BYTE bOp;
PASLTERM pterm;
char szUnAsmArgTypes[MAX_ARGS + 1];
PNSOBJ pns;
int i;
ENTER((2, "UnAsmOpcode(pbOp=%p,pfileOut=%p)\n", *ppbOp, pfileOut));
if (**ppbOp == OP_EXT_PREFIX)
{
(*ppbOp)++;
dwOpcode = (((DWORD)**ppbOp) << 8) | OP_EXT_PREFIX;
bOp = FindOpClass(**ppbOp, ExOpClassTable);
}
else
{
dwOpcode = (DWORD)(**ppbOp);
bOp = OpClassTable[**ppbOp];
}
switch (bOp)
{
case OPCLASS_DATA_OBJ:
rc = UnAsmDataObj(ppbOp, pfileOut);
break;
case OPCLASS_NAME_OBJ:
if (((rc = UnAsmNameObj(ppbOp, pfileOut, &pns, NSTYPE_UNKNOWN)) ==
ASLERR_NONE) &&
(pns != NULL) &&
(pns->ObjData.dwDataType == OBJTYPE_METHOD))
{
for (i = 0; i < (int)pns->ObjData.uipDataValue; ++i)
{
szUnAsmArgTypes[i] = 'C';
}
szUnAsmArgTypes[i] = '\0';
rc = UnAsmArgs(szUnAsmArgTypes, NULL, 0, ppbOp, NULL, pfileOut);
}
break;
case OPCLASS_ARG_OBJ:
case OPCLASS_LOCAL_OBJ:
case OPCLASS_CODE_OBJ:
case OPCLASS_CONST_OBJ:
if ((pterm = FindOpTerm(dwOpcode)) == NULL)
{
ERROR(("UnAsmOpcode: invalid opcode 0x%x", dwOpcode));
rc = ASLERR_INVALID_OPCODE;
}
else
{
(*ppbOp)++;
rc = UnAsmTermObj(pterm, ppbOp, pfileOut);
}
break;
default:
ERROR(("UnAsmOpcode: invalid opcode class %d", bOp));
rc = ASLERR_INTERNAL_ERROR;
}
EXIT((2, "UnAsmOpcode=%d\n", rc));
return rc;
} //UnAsmOpcode
/***LP UnAsmDataObj - Unassemble data object
*
* ENTRY
* ppbOp -> opcode pointer
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmDataObj(PBYTE *ppbOp, FILE *pfileOut)
{
int rc = ASLERR_NONE;
BYTE bOp = **ppbOp;
ENTER((2, "UnAsmDataObj(pbOp=%p,bOp=%x,pfileOut=%p)\n",
*ppbOp, bOp, pfileOut));
(*ppbOp)++;
switch (bOp)
{
case OP_BYTE:
if (pfileOut != NULL)
{
fprintf(pfileOut, "0x%x", **ppbOp);
}
*ppbOp += sizeof(BYTE);
break;
case OP_WORD:
if (pfileOut != NULL)
{
fprintf(pfileOut, "0x%x", *((PWORD)*ppbOp));
}
*ppbOp += sizeof(WORD);
break;
case OP_DWORD:
if (pfileOut != NULL)
{
fprintf(pfileOut, "0x%x", *((PDWORD)*ppbOp));
}
*ppbOp += sizeof(DWORD);
break;
case OP_STRING:
if (pfileOut != NULL)
{
PSZ psz;
fprintf(pfileOut, "\"");
for (psz = (PSZ)*ppbOp; *psz != '\0'; psz++)
{
if (*psz == '\\')
{
fprintf(pfileOut, "\\");
}
fprintf(pfileOut, "%c", *psz);
}
fprintf(pfileOut, "\"");
}
*ppbOp += strlen((PSZ)*ppbOp) + 1;
break;
default:
ERROR(("UnAsmDataObj: unexpected opcode 0x%x", bOp));
rc = ASLERR_INVALID_OPCODE;
}
EXIT((2, "UnAsmDataObj=%d\n", rc));
return rc;
} //UnAsmDataObj
/***LP UnAsmNameObj - Unassemble name object
*
* ENTRY
* ppbOp -> opcode pointer
* pfileOut -> ASM output file
* ppns -> to hold object found or created
* c - object type
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmNameObj(PBYTE *ppbOp, FILE *pfileOut, PNSOBJ *ppns, char c)
{
int rc = ASLERR_NONE;
char szName[MAX_NAME_LEN + 1];
int iLen = 0;
ENTER((2, "UnAsmNameObj(pbOp=%p,pfileOut=%p,ppns=%p,c=%c)\n",
*ppbOp, pfileOut, ppns, c));
szName[0] = '\0';
if (**ppbOp == OP_ROOT_PREFIX)
{
szName[iLen] = '\\';
iLen++;
(*ppbOp)++;
rc = ParseNameTail(ppbOp, szName, iLen);
}
else if (**ppbOp == OP_PARENT_PREFIX)
{
szName[iLen] = '^';
iLen++;
(*ppbOp)++;
while ((**ppbOp == OP_PARENT_PREFIX) && (iLen < MAX_NAME_LEN))
{
szName[iLen] = '^';
iLen++;
(*ppbOp)++;
}
if (**ppbOp == OP_PARENT_PREFIX)
{
ERROR(("UnAsmNameObj: name too long - \"%s\"", szName));
rc = ASLERR_NAME_TOO_LONG;
}
else
{
rc = ParseNameTail(ppbOp, szName, iLen);
}
}
else
{
rc = ParseNameTail(ppbOp, szName, iLen);
}
if (rc == ASLERR_NONE)
{
PNSOBJ pns = NULL;
if (pfileOut != NULL)
{
fprintf(pfileOut, "%s", szName);
}
if (islower(c) && (gdwfASL & ASLF_UNASM) &&
((pfileOut == NULL) ||
(gpnsCurrentScope->ObjData.dwDataType == OBJTYPE_METHOD)))
{
rc = CreateObject(NULL, szName, (char)_toupper(c), &pns);
}
else if ((rc = GetNameSpaceObj(szName, gpnsCurrentScope, &pns, 0)) ==
ASLERR_NSOBJ_NOT_FOUND)
{
if (c == NSTYPE_SCOPE)
{
rc = CreateScopeObj(szName, &pns);
}
else
{
rc = ASLERR_NONE;
}
}
if (rc == ASLERR_NONE)
{
if ((c == NSTYPE_SCOPE) && (pns != NULL))
{
gpnsCurrentScope = pns;
}
if (ppns != NULL)
{
*ppns = pns;
}
}
}
EXIT((2, "UnAsmNameObj=%d (pns=%p)\n", rc, ppns? *ppns: 0));
return rc;
} //UnAsmNameObj
/***LP ParseNameTail - Parse AML name tail
*
* ENTRY
* ppbOp -> opcode pointer
* pszBuff -> to hold parsed name
* iLen - index to tail of pszBuff
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL ParseNameTail(PBYTE *ppbOp, PSZ pszBuff, int iLen)
{
int rc = ASLERR_NONE;
int icNameSegs = 0;
ENTER((2, "ParseNameTail(pbOp=%x,Name=%s,iLen=%d)\n",
*ppbOp, pszBuff, iLen));
//
// We do not check for invalid NameSeg characters here and assume that
// the compiler does its job not generating it.
//
if (**ppbOp == '\0')
{
//
// There is no NameTail (i.e. either NULL name or name with just
// prefixes.
//
(*ppbOp)++;
}
else if (**ppbOp == OP_MULTI_NAME_PREFIX)
{
(*ppbOp)++;
icNameSegs = (int)**ppbOp;
(*ppbOp)++;
}
else if (**ppbOp == OP_DUAL_NAME_PREFIX)
{
(*ppbOp)++;
icNameSegs = 2;
}
else
icNameSegs = 1;
while ((icNameSegs > 0) && (iLen + sizeof(NAMESEG) < MAX_NAME_LEN))
{
strncpy(&pszBuff[iLen], (PSZ)(*ppbOp), sizeof(NAMESEG));
iLen += sizeof(NAMESEG);
*ppbOp += sizeof(NAMESEG);
icNameSegs--;
if ((icNameSegs > 0) && (iLen + 1 < MAX_NAME_LEN))
{
pszBuff[iLen] = '.';
iLen++;
}
}
if (icNameSegs > 0)
{
ERROR(("ParseNameTail: name too long - %s", pszBuff));
rc = ASLERR_NAME_TOO_LONG;
}
else
{
pszBuff[iLen] = '\0';
}
EXIT((2, "ParseNameTail=%x (Name=%s)\n", rc, pszBuff));
return rc;
} //ParseNameTail
/***LP UnAsmTermObj - Unassemble term object
*
* ENTRY
* pterm -> term table entry
* ppbOp -> opcode pointer
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmTermObj(PASLTERM pterm, PBYTE *ppbOp, FILE *pfileOut)
{
int rc = ASLERR_NONE;
PBYTE pbEnd = NULL;
PNSOBJ pnsScopeSave = gpnsCurrentScope;
PNSOBJ pns = NULL;
ENTER((2, "UnAsmTermObj(pterm=%p,Term=%s,pbOp=%p,pfileOut=%p)\n",
pterm, pterm->pszID, *ppbOp, pfileOut));
if (pfileOut != NULL)
{
fprintf(pfileOut, "%s", pterm->pszID);
}
if (pterm->dwfTerm & TF_PACKAGE_LEN)
{
ParsePackageLen(ppbOp, &pbEnd);
}
if (pterm->pszUnAsmArgTypes != NULL)
{
rc = UnAsmArgs(pterm->pszUnAsmArgTypes, pterm->pszArgActions,
pterm->dwTermData, ppbOp, &pns, pfileOut);
}
if (rc == ASLERR_NONE)
{
if (pterm->dwfTerm & TF_DATA_LIST)
{
rc = UnAsmDataList(ppbOp, pbEnd, pfileOut);
}
else if (pterm->dwfTerm & TF_PACKAGE_LIST)
{
rc = UnAsmPkgList(ppbOp, pbEnd, pfileOut);
}
else if (pterm->dwfTerm & TF_FIELD_LIST)
{
rc = UnAsmFieldList(ppbOp, pbEnd, pfileOut);
}
else if (pterm->dwfTerm & TF_PACKAGE_LEN)
{
if ((pfileOut == NULL) && (pterm->lID == ID_METHOD))
{
//
// We are in NameSpace building pass, so don't need to
// go into methods.
//
*ppbOp = pbEnd;
}
else
{
if (pterm->dwfTerm & TF_CHANGE_CHILDSCOPE)
{
ASSERT(pns != NULL);
gpnsCurrentScope = pns;
}
rc = UnAsmScope(ppbOp, pbEnd, pfileOut);
}
}
}
gpnsCurrentScope = pnsScopeSave;
EXIT((2, "UnAsmTermObj=%d\n", rc));
return rc;
} //UnAsmTermObj
/***LP UnAsmArgs - Unassemble arguments
*
* ENTRY
* pszUnArgTypes -> UnAsm ArgTypes string
* pszArgActions -> Arg Action types
* dwTermData - Term data
* ppbOp -> opcode pointer
* ppns -> to hold created object
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmArgs(PSZ pszUnAsmArgTypes, PSZ pszArgActions, DWORD dwTermData,
PBYTE *ppbOp, PNSOBJ *ppns, FILE *pfileOut)
{
int rc = ASLERR_NONE;
static BYTE bArgData = 0;
int iNumArgs, i;
PASLTERM pterm;
ENTER((2, "UnAsmArgs(UnAsmArgTypes=%s,ArgActions=%s,TermData=%x,pbOp=%p,ppns=%p,pfileOut=%p)\n",
pszUnAsmArgTypes, pszArgActions? pszArgActions: "", dwTermData,
*ppbOp, ppns, pfileOut));
iNumArgs = strlen(pszUnAsmArgTypes);
if (pfileOut != NULL)
{
fprintf(pfileOut, "(");
}
for (i = 0; i < iNumArgs; ++i)
{
if ((i != 0) && (pfileOut != NULL))
{
fprintf(pfileOut, ", ");
}
switch (pszUnAsmArgTypes[i])
{
case 'N':
ASSERT(pszArgActions != NULL);
rc = UnAsmNameObj(ppbOp, pfileOut, ppns, pszArgActions[i]);
break;
case 'O':
if ((**ppbOp == OP_BUFFER) || (**ppbOp == OP_PACKAGE) ||
(OpClassTable[**ppbOp] == OPCLASS_CONST_OBJ))
{
pterm = FindOpTerm((DWORD)(**ppbOp));
ASSERT(pterm != NULL);
(*ppbOp)++;
rc = UnAsmTermObj(pterm, ppbOp, pfileOut);
}
else
{
rc = UnAsmDataObj(ppbOp, pfileOut);
}
break;
case 'C':
rc = UnAsmOpcode(ppbOp, pfileOut);
break;
case 'B':
if (pfileOut != NULL)
{
fprintf(pfileOut, "0x%x", **ppbOp);
}
*ppbOp += sizeof(BYTE);
break;
case 'E':
case 'e':
case 'K':
case 'k':
if ((pszUnAsmArgTypes[i] == 'K') ||
(pszUnAsmArgTypes[i] == 'E'))
{
bArgData = **ppbOp;
}
if ((pszArgActions != NULL) && (pszArgActions[i] == '!'))
{
if ((gdwfASL & ASLF_UNASM) && (*ppns != NULL))
{
(*ppns)->ObjData.uipDataValue = (DWORD)(**ppbOp & 0x07);
}
if (pfileOut != NULL)
{
fprintf(pfileOut, "0x%x", **ppbOp & 0x07);
}
}
else if (pfileOut != NULL)
{
pterm = FindKeywordTerm(pszArgActions[i], bArgData);
if (pterm != NULL)
{
fprintf(pfileOut, "%s", pterm->pszID);
}
else
{
fprintf(pfileOut, "0x%x", bArgData & dwTermData & 0xff);
}
}
if ((pszUnAsmArgTypes[i] == 'K') ||
(pszUnAsmArgTypes[i] == 'E'))
{
*ppbOp += sizeof(BYTE);
}
break;
case 'W':
if (pfileOut != NULL)
{
fprintf(pfileOut, "0x%x", *((PWORD)*ppbOp));
}
*ppbOp += sizeof(WORD);
break;
case 'D':
if (pfileOut != NULL)
{
fprintf(pfileOut, "0x%x", *((PDWORD)*ppbOp));
}
*ppbOp += sizeof(DWORD);
break;
case 'S':
ASSERT(pszArgActions != NULL);
rc = UnAsmSuperName(ppbOp, pfileOut);
break;
default:
ERROR(("UnAsmOpcode: invalid ArgType '%c'", pszUnAsmArgTypes[i]));
rc = ASLERR_INVALID_ARGTYPE;
}
}
if (pfileOut != NULL)
{
fprintf(pfileOut, ")");
}
EXIT((2, "UnAsmArgs=%d\n", rc));
return rc;
} //UnAsmArgs
/***LP UnAsmSuperName - Unassemble supername
*
* ENTRY
* ppbOp -> opcode pointer
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmSuperName(PBYTE *ppbOp, FILE *pfileOut)
{
int rc = ASLERR_NONE;
ENTER((2, "UnAsmSuperName(pbOp=%p,pfileOut=%p)\n", *ppbOp, pfileOut));
if (**ppbOp == 0)
{
(*ppbOp)++;
}
else if ((**ppbOp == OP_EXT_PREFIX) && (*(*ppbOp + 1) == EXOP_DEBUG))
{
if (pfileOut != NULL)
{
fprintf(pfileOut, "Debug");
}
*ppbOp += 2;
}
else if (OpClassTable[**ppbOp] == OPCLASS_NAME_OBJ)
{
rc = UnAsmNameObj(ppbOp, pfileOut, NULL, NSTYPE_UNKNOWN);
}
else if ((**ppbOp == OP_INDEX) ||
(OpClassTable[**ppbOp] == OPCLASS_ARG_OBJ) ||
(OpClassTable[**ppbOp] == OPCLASS_LOCAL_OBJ))
{
rc = UnAsmOpcode(ppbOp, pfileOut);
}
else
{
ERROR(("UnAsmSuperName: invalid SuperName - 0x%02x", **ppbOp));
rc = ASLERR_INVALID_NAME;
}
EXIT((2, "UnAsmSuperName=%d\n", rc));
return rc;
} //UnAsmSuperName
/***LP ParsePackageLen - parse package length
*
* ENTRY
* ppbOp -> instruction pointer
* ppbOpNext -> to hold pointer to next instruction (can be NULL)
*
* EXIT
* returns package length
*/
DWORD LOCAL ParsePackageLen(PBYTE *ppbOp, PBYTE *ppbOpNext)
{
DWORD dwLen;
BYTE bFollowCnt, i;
ENTER((2, "ParsePackageLen(pbOp=%x,ppbOpNext=%x)\n", *ppbOp, ppbOpNext));
if (ppbOpNext != NULL)
*ppbOpNext = *ppbOp;
dwLen = (DWORD)(**ppbOp);
(*ppbOp)++;
bFollowCnt = (BYTE)((dwLen & 0xc0) >> 6);
if (bFollowCnt != 0)
{
dwLen &= 0x0000000f;
for (i = 0; i < bFollowCnt; ++i)
{
dwLen |= (DWORD)(**ppbOp) << (i*8 + 4);
(*ppbOp)++;
}
}
if (ppbOpNext != NULL)
*ppbOpNext += dwLen;
EXIT((2, "ParsePackageLen=%x (pbOp=%x,pbOpNext=%x)\n",
dwLen, *ppbOp, ppbOpNext? *ppbOpNext: 0));
return dwLen;
} //ParsePackageLen
/***LP UnAsmDataList - Unassemble data list
*
* ENTRY
* ppbOp -> opcode pointer
* pbEnd -> end of list
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmDataList(PBYTE *ppbOp, PBYTE pbEnd, FILE *pfileOut)
{
int rc = ASLERR_NONE;
int i;
ENTER((2, "UnAsmDataList(pbOp=%p,pbEnd=%p,pfileOut=%p)\n",
*ppbOp, pbEnd, pfileOut));
DumpCode(*ppbOp, pfileOut);
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "{\n");
}
while (*ppbOp < pbEnd)
{
if (pfileOut != NULL)
{
if ((gdwfASL & ASLF_GENASM) || !(gdwfASL & ASLF_GENSRC))
{
fprintf(pfileOut, ";");
}
fprintf(pfileOut, "\t0x%02x", **ppbOp);
}
(*ppbOp)++;
for (i = 1; (*ppbOp < pbEnd) && (i < 12); ++i)
{
if (pfileOut != NULL)
{
fprintf(pfileOut, ", 0x%02x", **ppbOp);
}
(*ppbOp)++;
}
if (pfileOut != NULL)
{
if (*ppbOp < pbEnd)
{
fprintf(pfileOut, ",");
}
fprintf(pfileOut, "\n");
}
}
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "}");
}
EXIT((2, "UnAsmDataList=%d\n", rc));
return rc;
} //UnAsmDataList
/***LP UnAsmPkgList - Unassemble package list
*
* ENTRY
* ppbOp -> opcode pointer
* pbEnd -> end of list
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmPkgList(PBYTE *ppbOp, PBYTE pbEnd, FILE *pfileOut)
{
int rc = ASLERR_NONE;
PASLTERM pterm;
ENTER((2, "UnAsmPkgList(pbOp=%p,pbEnd=%p,pfileOut=%p)\n",
*ppbOp, pbEnd, pfileOut));
DumpCode(*ppbOp, pfileOut);
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "{\n");
}
giLevel++;
while ((*ppbOp < pbEnd) && (rc == ASLERR_NONE))
{
PrintIndent(giLevel, pfileOut);
if ((**ppbOp == OP_BUFFER) || (**ppbOp == OP_PACKAGE) ||
(OpClassTable[**ppbOp] == OPCLASS_CONST_OBJ))
{
pterm = FindOpTerm((DWORD)(**ppbOp));
ASSERT(pterm != NULL);
(*ppbOp)++;
rc = UnAsmTermObj(pterm, ppbOp, pfileOut);
}
else if (OpClassTable[**ppbOp] == OPCLASS_NAME_OBJ)
{
rc = UnAsmNameObj(ppbOp, pfileOut, NULL, NSTYPE_UNKNOWN);
}
else
{
rc = UnAsmDataObj(ppbOp, pfileOut);
}
if ((*ppbOp < pbEnd) && (rc == ASLERR_NONE) && (pfileOut != NULL))
{
fprintf(pfileOut, ",");
}
DumpCode(*ppbOp, pfileOut);
}
giLevel--;
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "}");
}
EXIT((2, "UnAsmPkgList=%d\n", rc));
return rc;
} //UnAsmPkgList
/***LP UnAsmFieldList - Unassemble field list
*
* ENTRY
* ppbOp -> opcode pointer
* pbEnd -> end of list
* pfileOut -> ASM output file
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmFieldList(PBYTE *ppbOp, PBYTE pbEnd, FILE *pfileOut)
{
int rc = ASLERR_NONE;
DWORD dwBitPos = 0;
ENTER((2, "UnAsmFieldList(pbOp=%p,pbEnd=%p,pfileOut=%p)\n",
*ppbOp, pbEnd, pfileOut));
DumpCode(*ppbOp, pfileOut);
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "{\n");
}
giLevel++;
while ((*ppbOp < pbEnd) && (rc == ASLERR_NONE))
{
PrintIndent(giLevel, pfileOut);
if (((rc = UnAsmField(ppbOp, pfileOut, &dwBitPos)) == ASLERR_NONE) &&
(*ppbOp < pbEnd) && (pfileOut != NULL))
{
fprintf(pfileOut, ",");
}
DumpCode(*ppbOp, pfileOut);
}
giLevel--;
PrintIndent(giLevel, pfileOut);
if (pfileOut != NULL)
{
fprintf(pfileOut, "}");
}
EXIT((2, "UnAsmFieldList=%d\n", rc));
return rc;
} //UnAsmFieldList
/***LP UnAsmField - Unassemble field
*
* ENTRY
* ppbOp -> opcode pointer
* pfileOut -> ASM output file
* pdwBitPos -> to hold cumulative bit position
*
* EXIT-SUCCESS
* returns ASLERR_NONE
* EXIT-FAILURE
* returns negative error code
*/
int LOCAL UnAsmField(PBYTE *ppbOp, FILE *pfileOut, PDWORD pdwBitPos)
{
int rc = ASLERR_NONE;
ENTER((2, "UnAsmField(pbOp=%p,pfileOut=%p,BitPos=%x)\n",
*ppbOp, pfileOut, *pdwBitPos));
if (**ppbOp == 0x01)
{
(*ppbOp)++;
if (pfileOut != NULL)
{
PASLTERM pterm;
pterm = FindKeywordTerm('A', **ppbOp);
fprintf(pfileOut, "AccessAs(%s, 0x%x)",
pterm->pszID, *(*ppbOp + 1));
}
*ppbOp += 2;
}
else
{
char szNameSeg[sizeof(NAMESEG) + 1];
DWORD dwcbBits;
if (**ppbOp == 0)
{
szNameSeg[0] = '\0';
(*ppbOp)++;
}
else
{
strncpy(szNameSeg, (PSZ)*ppbOp, sizeof(NAMESEG));
szNameSeg[4] = '\0';
*ppbOp += sizeof(NAMESEG);
}
dwcbBits = ParsePackageLen(ppbOp, NULL);
if (szNameSeg[0] == '\0')
{
if (pfileOut != NULL)
{
if ((dwcbBits > 32) && (((*pdwBitPos + dwcbBits) % 8) == 0))
{
fprintf(pfileOut, "Offset(0x%x)", (*pdwBitPos + dwcbBits)/8);
}
else
{
fprintf(pfileOut, ", %d", dwcbBits);
}
}
}
else
{
if (pfileOut != NULL)
{
fprintf(pfileOut, "%s, %d", szNameSeg, dwcbBits);
}
if ((gdwfASL & ASLF_UNASM) && (pfileOut == NULL))
{
rc = CreateObject(NULL, szNameSeg, NSTYPE_FIELDUNIT, NULL);
}
}
*pdwBitPos += dwcbBits;
}
EXIT((2, "UnAsmField=%d\n", rc));
return rc;
} //UnAsmField