diff options
Diffstat (limited to 'source/compiler/prscan.c')
| -rw-r--r-- | source/compiler/prscan.c | 92 |
1 files changed, 75 insertions, 17 deletions
diff --git a/source/compiler/prscan.c b/source/compiler/prscan.c index 393d80149fb1..27eb6be85318 100644 --- a/source/compiler/prscan.c +++ b/source/compiler/prscan.c @@ -120,7 +120,6 @@ static const PR_DIRECTIVE_INFO Gbl_DirectiveInfo[] = {"include", 0}, /* Argument is not standard format, so just use 0 here */ {"includebuffer", 0}, /* Argument is not standard format, so just use 0 here */ {"line", 1}, - {"loadbuffer", 0}, {"pragma", 1}, {"undef", 1}, {"warning", 1}, @@ -144,7 +143,7 @@ enum Gbl_DirectiveIndexes PR_DIRECTIVE_LINE, PR_DIRECTIVE_PRAGMA, PR_DIRECTIVE_UNDEF, - PR_DIRECTIVE_WARNING, + PR_DIRECTIVE_WARNING }; #define ASL_DIRECTIVE_NOT_FOUND -1 @@ -328,7 +327,7 @@ PrPreprocessInputFile ( PrGetNextLineInit (); - /* Scan line-by-line. Comments and blank lines are skipped by this function */ + /* Scan source line-by-line and process directives. Then write the .i file */ while ((Status = PrGetNextLine (Gbl_Files[ASL_FILE_INPUT].Handle)) != ASL_EOF) { @@ -479,6 +478,16 @@ PrDoDirective ( } /* + * 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. @@ -825,6 +834,9 @@ PrDoDirective ( PrError (ASL_WARNING, ASL_MSG_WARNING_DIRECTIVE, THIS_TOKEN_OFFSET (Token)); + + Gbl_SourceLine = 0; + Gbl_NextError = Gbl_ErrorLog; break; default: @@ -863,7 +875,9 @@ SyntaxError: ******************************************************************************/ #define PR_NORMAL_TEXT 0 -#define PR_WITHIN_COMMENT 1 +#define PR_MULTI_LINE_COMMENT 1 +#define PR_SINGLE_LINE_COMMENT 2 +#define PR_QUOTED_STRING 3 static UINT8 AcpiGbl_LineScanState = PR_NORMAL_TEXT; @@ -904,22 +918,55 @@ PrGetNextLine ( return (ASL_EOF); } - /* We need to worry about multi-line slash-asterisk comments */ - - /* Check for comment open */ + /* Update state machine as necessary */ - if ((AcpiGbl_LineScanState == PR_NORMAL_TEXT) && - (PreviousChar == '/') && (c == '*')) + switch (AcpiGbl_LineScanState) { - AcpiGbl_LineScanState = PR_WITHIN_COMMENT; - } + case PR_NORMAL_TEXT: - /* Check for comment close */ + /* Check for multi-line comment start */ - if ((AcpiGbl_LineScanState == PR_WITHIN_COMMENT) && - (PreviousChar == '*') && (c == '/')) - { - AcpiGbl_LineScanState = PR_NORMAL_TEXT; + if ((PreviousChar == '/') && (c == '*')) + { + AcpiGbl_LineScanState = PR_MULTI_LINE_COMMENT; + } + + /* Check for single-line comment start */ + + else if ((PreviousChar == '/') && (c == '/')) + { + AcpiGbl_LineScanState = PR_SINGLE_LINE_COMMENT; + } + + /* Check for quoted string start */ + + else if (PreviousChar == '"') + { + AcpiGbl_LineScanState = PR_QUOTED_STRING; + } + break; + + case PR_QUOTED_STRING: + + if (PreviousChar == '"') + { + AcpiGbl_LineScanState = PR_NORMAL_TEXT; + } + break; + + case PR_MULTI_LINE_COMMENT: + + /* Check for multi-line comment end */ + + if ((PreviousChar == '*') && (c == '/')) + { + AcpiGbl_LineScanState = PR_NORMAL_TEXT; + } + break; + + case PR_SINGLE_LINE_COMMENT: /* Just ignore text until EOL */ + default: + break; } /* Always copy the character into line buffer */ @@ -933,10 +980,21 @@ PrGetNextLine ( { /* Handle multi-line comments */ - if (AcpiGbl_LineScanState == PR_WITHIN_COMMENT) + if (AcpiGbl_LineScanState == PR_MULTI_LINE_COMMENT) { return (ASL_WITHIN_COMMENT); } + + /* End of single-line comment */ + + if (AcpiGbl_LineScanState == PR_SINGLE_LINE_COMMENT) + { + AcpiGbl_LineScanState = PR_NORMAL_TEXT; + return (AE_OK); + } + + /* Blank line */ + if (i == 1) { return (ASL_BLANK_LINE); |