static void
PrDoDirective (
char *DirectiveToken,
char **Next)
{
char *Token = Gbl_MainTokenBuffer;
char *Token2 = NULL;
char *End;
UINT64 Value;
ACPI_SIZE TokenOffset;
int Directive;
ACPI_STATUS Status;
if (!DirectiveToken)
{
goto SyntaxError;
}
Directive = PrMatchDirective (DirectiveToken);
if (Directive == ASL_DIRECTIVE_NOT_FOUND)
{
PrError (ASL_ERROR, ASL_MSG_UNKNOWN_DIRECTIVE,
THIS_TOKEN_OFFSET (DirectiveToken));
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"#%s: Unknown directive\n",
Gbl_CurrentLineNumber, DirectiveToken);
return;
}
/*
* Emit a line directive into the preprocessor file (.pre) after
* every matched directive. This is passed through to the compiler
* so that error/warning messages are kept in sync with the
* original source file.
*/
FlPrintFile (ASL_FILE_PREPROCESSOR, "#line %u \"%s\" // #%s\n",
Gbl_CurrentLineNumber, Gbl_Files[ASL_FILE_INPUT].Filename,
Gbl_DirectiveInfo[Directive].Name);
/*
* If we are currently ignoring this block and we encounter a #else or
* #elif, we must ignore their blocks also if the parent block is also
* being ignored.
*/
if (Gbl_IgnoringThisCodeBlock)
{
switch (Directive)
{
case PR_DIRECTIVE_ELSE:
case PR_DIRECTIVE_ELIF:
if (Gbl_DirectiveStack &&
Gbl_DirectiveStack->IgnoringThisCodeBlock)
{
PrDbgPrint ("Ignoring", Gbl_DirectiveInfo[Directive].Name);
return;
}
break;
default:
break;
}
}
/*
* Need to always check for #else, #elif, #endif regardless of
* whether we are ignoring the current code block, since these
* are conditional code block terminators.
*/
switch (Directive)
{
case PR_DIRECTIVE_ELSE:
Gbl_IgnoringThisCodeBlock = !(Gbl_IgnoringThisCodeBlock);
PrDbgPrint ("Executing", "else block");
return;
case PR_DIRECTIVE_ELIF:
Gbl_IgnoringThisCodeBlock = !(Gbl_IgnoringThisCodeBlock);
Directive = PR_DIRECTIVE_IF;
if (Gbl_IgnoringThisCodeBlock == TRUE)
{
/* Not executing the ELSE part -- all done here */
PrDbgPrint ("Ignoring", "elif block");
return;
}
/*
* After this, we will execute the IF part further below.
* First, however, pop off the original #if directive.
*/
if (ACPI_FAILURE (PrPopDirective ()))
{
PrError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL,
THIS_TOKEN_OFFSET (DirectiveToken));
}
PrDbgPrint ("Executing", "elif block");
break;
case PR_DIRECTIVE_ENDIF:
PrDbgPrint ("Executing", "endif");
/* Pop the owning #if/#ifdef/#ifndef */
if (ACPI_FAILURE (PrPopDirective ()))
{
PrError (ASL_ERROR, ASL_MSG_ENDIF_MISMATCH,
THIS_TOKEN_OFFSET (DirectiveToken));
}
return;
default:
break;
}
/* Most directives have at least one argument */
if (Gbl_DirectiveInfo[Directive].ArgCount >= 1)
{
Token = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, Next);
if (!Token)
{
goto SyntaxError;
}
}
if (Gbl_DirectiveInfo[Directive].ArgCount >= 2)
{
Token2 = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, Next);
if (!Token2)
{
goto SyntaxError;
}
}
/*
* At this point, if we are ignoring the current code block,
* do not process any more directives (i.e., ignore them also.)
* For "if" style directives, open/push a new block anyway. We
* must do this to keep track of #endif directives
*/
if (Gbl_IgnoringThisCodeBlock)
{
switch (Directive)
{
case PR_DIRECTIVE_IF:
case PR_DIRECTIVE_IFDEF:
case PR_DIRECTIVE_IFNDEF:
PrPushDirective (Directive, Token);
PrDbgPrint ("Ignoring", Gbl_DirectiveInfo[Directive].Name);
break;
default:
break;
}
return;
}
/*
* Execute the directive
*/
PrDbgPrint ("Begin execution", Gbl_DirectiveInfo[Directive].Name);
switch (Directive)
{
case PR_DIRECTIVE_IF:
TokenOffset = Token - Gbl_MainTokenBuffer;
/* Need to expand #define macros in the expression string first */
Status = PrResolveIntegerExpression (
&Gbl_CurrentLineBuffer[TokenOffset-1], &Value);
if (ACPI_FAILURE (Status))
{
return;
}
PrPushDirective (Directive, Token);
if (!Value)
{
Gbl_IgnoringThisCodeBlock = TRUE;
}
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"Resolved #if: %8.8X%8.8X %s\n",
Gbl_CurrentLineNumber, ACPI_FORMAT_UINT64 (Value),
Gbl_IgnoringThisCodeBlock ? "<Skipping Block>" : "<Executing Block>");
break;
case PR_DIRECTIVE_IFDEF:
PrPushDirective (Directive, Token);
if (!PrMatchDefine (Token))
{
Gbl_IgnoringThisCodeBlock = TRUE;
}
PrDbgPrint ("Evaluated", "ifdef");
break;
case PR_DIRECTIVE_IFNDEF:
PrPushDirective (Directive, Token);
if (PrMatchDefine (Token))
{
Gbl_IgnoringThisCodeBlock = TRUE;
}
PrDbgPrint ("Evaluated", "ifndef");
break;
case PR_DIRECTIVE_DEFINE:
/*
* By definition, if first char after the name is a paren,
* this is a function macro.
*/
TokenOffset = Token - Gbl_MainTokenBuffer + strlen (Token);
if (*(&Gbl_CurrentLineBuffer[TokenOffset]) == '(')
{
#ifndef MACROS_SUPPORTED
AcpiOsPrintf (
"%s ERROR - line %u: #define macros are not supported yet\n",
Gbl_CurrentLineBuffer, Gbl_LogicalLineNumber);
exit(1);
#else
PrAddMacro (Token, Next);
#endif
}
else
{
/* Use the remainder of the line for the #define */
Token2 = *Next;
if (Token2)
{
while ((*Token2 == ' ') || (*Token2 == '\t'))
{
Token2++;
}
End = Token2;
while (*End != '\n')
{
End++;
}
*End = 0;
}
else
{
Token2 = "";
}
#if 0
Token2 = PrGetNextToken (NULL, "\n", /*PR_TOKEN_SEPARATORS,*/ Next);
if (!Token2)
{
Token2 = "";
}
#endif
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"New #define: %s->%s\n",
Gbl_LogicalLineNumber, Token, Token2);
PrAddDefine (Token, Token2, FALSE);
}
break;
case PR_DIRECTIVE_ERROR:
/* Note: No macro expansion */
PrError (ASL_ERROR, ASL_MSG_ERROR_DIRECTIVE,
THIS_TOKEN_OFFSET (Token));
Gbl_SourceLine = 0;
Gbl_NextError = Gbl_ErrorLog;
CmCleanupAndExit ();
exit(1);
case PR_DIRECTIVE_INCLUDE:
Token = PrGetNextToken (NULL, " \"<>", Next);
if (!Token)
{
goto SyntaxError;
}
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"Start #include file \"%s\"\n", Gbl_CurrentLineNumber,
Token, Gbl_CurrentLineNumber);
PrDoIncludeFile (Token);
break;
case PR_DIRECTIVE_INCLUDEBUFFER:
Token = PrGetNextToken (NULL, " \"<>", Next);
if (!Token)
{
goto SyntaxError;
}
Token2 = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, Next);
if (!Token2)
{
goto SyntaxError;
}
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"Start #includebuffer input from file \"%s\", buffer name %s\n",
Gbl_CurrentLineNumber, Token, Token2);
PrDoIncludeBuffer (Token, Token2);
break;
case PR_DIRECTIVE_LINE:
TokenOffset = Token - Gbl_MainTokenBuffer;
Status = PrResolveIntegerExpression (
&Gbl_CurrentLineBuffer[TokenOffset-1], &Value);
if (ACPI_FAILURE (Status))
{
return;
}
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"User #line invocation %s\n", Gbl_CurrentLineNumber,
Token);
Gbl_CurrentLineNumber = (UINT32) Value;
/* Emit #line into the preprocessor file */
FlPrintFile (ASL_FILE_PREPROCESSOR, "#line %u \"%s\"\n",
Gbl_CurrentLineNumber, Gbl_Files[ASL_FILE_INPUT].Filename);
break;
case PR_DIRECTIVE_PRAGMA:
if (!strcmp (Token, "disable"))
{
Token = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, Next);
if (!Token)
{
goto SyntaxError;
}
TokenOffset = Token - Gbl_MainTokenBuffer;
AslDisableException (&Gbl_CurrentLineBuffer[TokenOffset]);
}
else if (!strcmp (Token, "message"))
{
Token = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, Next);
if (!Token)
{
goto SyntaxError;
}
TokenOffset = Token - Gbl_MainTokenBuffer;
AcpiOsPrintf ("%s\n", &Gbl_CurrentLineBuffer[TokenOffset]);
}
else
{
PrError (ASL_ERROR, ASL_MSG_UNKNOWN_PRAGMA,
THIS_TOKEN_OFFSET (Token));
return;
}
break;
case PR_DIRECTIVE_UNDEF:
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"#undef: %s\n", Gbl_CurrentLineNumber, Token);
PrRemoveDefine (Token);
break;
case PR_DIRECTIVE_WARNING:
PrError (ASL_WARNING, ASL_MSG_WARNING_DIRECTIVE,
THIS_TOKEN_OFFSET (Token));
Gbl_SourceLine = 0;
Gbl_NextError = Gbl_ErrorLog;
break;
default:
/* Should never get here */
DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
"Unrecognized directive: %u\n",
Gbl_CurrentLineNumber, Directive);
break;
}
return;
SyntaxError:
PrError (ASL_ERROR, ASL_MSG_DIRECTIVE_SYNTAX,
THIS_TOKEN_OFFSET (DirectiveToken));
return;
}
static void
PrDoDirective (
char *DirectiveToken,
char **Next,
BOOLEAN *IgnoringThisCodeBlock)
{
char *Token = Gbl_MainTokenBuffer;
char *Token2;
char *End;
UINT64 Value;
ACPI_SIZE TokenOffset;
int Directive;
ACPI_STATUS Status;
if (!DirectiveToken)
{
goto SyntaxError;
}
Directive = PrMatchDirective (DirectiveToken);
if (Directive == ASL_DIRECTIVE_NOT_FOUND)
{
PrError (ASL_ERROR, ASL_MSG_UNKNOWN_DIRECTIVE,
THIS_TOKEN_OFFSET (DirectiveToken));
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"#%s: Unknown directive\n",
Gbl_CurrentLineNumber, DirectiveToken);
return;
}
/* TBD: Need a faster way to do this: */
if ((Directive == PR_DIRECTIVE_ELIF) ||
(Directive == PR_DIRECTIVE_ELSE) ||
(Directive == PR_DIRECTIVE_ENDIF))
{
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID "Begin #%s\n",
Gbl_CurrentLineNumber, Gbl_DirectiveInfo[Directive].Name);
}
/*
* Need to always check for #else, #elif, #endif regardless of
* whether we are ignoring the current code block, since these
* are conditional code block terminators.
*/
switch (Directive)
{
case PR_DIRECTIVE_ELIF:
*IgnoringThisCodeBlock = !(*IgnoringThisCodeBlock);
if (*IgnoringThisCodeBlock == TRUE)
{
/* Not executing the ELSE part -- all done here */
return;
}
/* Will execute the ELSE..IF part */
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"#elif - Executing else block\n",
Gbl_CurrentLineNumber);
Directive = PR_DIRECTIVE_IF;
break;
case PR_DIRECTIVE_ELSE:
*IgnoringThisCodeBlock = !(*IgnoringThisCodeBlock);
return;
case PR_DIRECTIVE_ENDIF:
*IgnoringThisCodeBlock = FALSE;
Gbl_IfDepth--;
if (Gbl_IfDepth < 0)
{
PrError (ASL_ERROR, ASL_MSG_ENDIF_MISMATCH,
THIS_TOKEN_OFFSET (DirectiveToken));
Gbl_IfDepth = 0;
}
return;
default:
break;
}
/*
* At this point, if we are ignoring the current code block,
* do not process any more directives (i.e., ignore them also.)
*/
if (*IgnoringThisCodeBlock == TRUE)
{
return;
}
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID "Begin #%s\n",
Gbl_CurrentLineNumber, Gbl_DirectiveInfo[Directive].Name);
/* Most directives have at least one argument */
if (Gbl_DirectiveInfo[Directive].ArgCount == 1)
{
Token = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, Next);
if (!Token)
{
goto SyntaxError;
}
}
switch (Directive)
{
case PR_DIRECTIVE_DEFINE:
/*
* By definition, if first char after the name is a paren,
* this is a function macro.
*/
TokenOffset = Token - Gbl_MainTokenBuffer + strlen (Token);
if (*(&Gbl_CurrentLineBuffer[TokenOffset]) == '(')
{
#ifndef MACROS_SUPPORTED
AcpiOsPrintf ("%s ERROR - line %u: #define macros are not supported yet\n",
Gbl_CurrentLineBuffer, Gbl_CurrentLineNumber);
exit(1);
#else
PrAddMacro (Token, Next);
#endif
}
else
{
/* Use the remainder of the line for the #define */
Token2 = *Next;
if (Token2)
{
while ((*Token2 == ' ') || (*Token2 == '\t'))
{
Token2++;
}
End = Token2;
while (*End != '\n')
{
End++;
}
*End = 0;
}
else
{
Token2 = "";
}
#if 0
Token2 = PrGetNextToken (NULL, "\n", /*PR_TOKEN_SEPARATORS,*/ Next);
if (!Token2)
{
Token2 = "";
}
#endif
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"New #define: %s->%s\n",
Gbl_CurrentLineNumber, Token, Token2);
PrAddDefine (Token, Token2, FALSE);
}
break;
case PR_DIRECTIVE_ERROR:
/* TBD compiler should abort */
/* Note: No macro expansion */
PrError (ASL_ERROR, ASL_MSG_ERROR_DIRECTIVE,
THIS_TOKEN_OFFSET (Token));
break;
case PR_DIRECTIVE_IF:
TokenOffset = Token - Gbl_MainTokenBuffer;
/* Need to expand #define macros in the expression string first */
Status = PrResolveIntegerExpression (
&Gbl_CurrentLineBuffer[TokenOffset-1], &Value);
if (ACPI_FAILURE (Status))
{
return;
}
if (!Value)
{
*IgnoringThisCodeBlock = TRUE;
}
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"Resolved #if: %8.8X%8.8X %s\n",
Gbl_CurrentLineNumber, ACPI_FORMAT_UINT64 (Value),
*IgnoringThisCodeBlock ? "<Skipping Block>" : "<Executing Block>");
Gbl_IfDepth++;
break;
case PR_DIRECTIVE_IFDEF:
if (!PrMatchDefine (Token))
{
*IgnoringThisCodeBlock = TRUE;
}
Gbl_IfDepth++;
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"Start #ifdef %s\n", Gbl_CurrentLineNumber,
*IgnoringThisCodeBlock ? "<Skipping Block>" : "<Executing Block>");
break;
case PR_DIRECTIVE_IFNDEF:
if (PrMatchDefine (Token))
{
*IgnoringThisCodeBlock = TRUE;
}
Gbl_IfDepth++;
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"Start #ifndef %2.2X\n", Gbl_CurrentLineNumber,
*IgnoringThisCodeBlock, Gbl_CurrentLineNumber);
break;
case PR_DIRECTIVE_INCLUDE:
Token = PrGetNextToken (NULL, " \"<>", Next);
if (!Token)
{
goto SyntaxError;
}
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"Start #include file \"%s\"\n", Gbl_CurrentLineNumber,
Token, Gbl_CurrentLineNumber);
PrOpenIncludeFile (Token);
break;
case PR_DIRECTIVE_LINE:
TokenOffset = Token - Gbl_MainTokenBuffer;
Status = PrResolveIntegerExpression (
&Gbl_CurrentLineBuffer[TokenOffset-1], &Value);
if (ACPI_FAILURE (Status))
{
return;
}
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"User #line invocation %s\n", Gbl_CurrentLineNumber,
Token);
/* Update local line numbers */
Gbl_CurrentLineNumber = (UINT32) Value;
Gbl_PreviousLineNumber = 0;
/* Emit #line into the preprocessor file */
FlPrintFile (ASL_FILE_PREPROCESSOR, "#line %u \"%s\"\n",
Gbl_CurrentLineNumber, Gbl_Files[ASL_FILE_INPUT].Filename);
break;
case PR_DIRECTIVE_PRAGMA:
/* Only "#pragma message" supported at this time */
if (strcmp (Token, "message"))
{
PrError (ASL_ERROR, ASL_MSG_UNKNOWN_PRAGMA,
THIS_TOKEN_OFFSET (Token));
return;
}
Token = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, Next);
if (!Token)
{
goto SyntaxError;
}
TokenOffset = Token - Gbl_MainTokenBuffer;
AcpiOsPrintf ("%s\n", &Gbl_CurrentLineBuffer[TokenOffset]);
break;
case PR_DIRECTIVE_UNDEF:
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"#undef: %s\n", Gbl_CurrentLineNumber, Token);
PrRemoveDefine (Token);
break;
case PR_DIRECTIVE_WARNING:
PrError (ASL_WARNING, ASL_MSG_ERROR_DIRECTIVE,
THIS_TOKEN_OFFSET (Token));
break;
default:
/* Should never get here */
DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
"Unrecognized directive: %u\n",
Gbl_CurrentLineNumber, Directive);
break;
}
return;
SyntaxError:
PrError (ASL_ERROR, ASL_MSG_DIRECTIVE_SYNTAX,
THIS_TOKEN_OFFSET (DirectiveToken));
return;
}