From d94e8a6cf0952e0a905699a47a50e57181fb414f Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Sat, 26 Jan 2013 19:51:28 +0000 Subject: assembler: Add location support Let's generate location information about the tokens we are parsing. This can be used to give accurate location when reporting errors and warnings. Signed-off-by: Damien Lespiau --- assembler/gram.y | 1 + assembler/lex.l | 24 ++++++++++++++++++------ 2 files changed, 19 insertions(+), 6 deletions(-) (limited to 'assembler') diff --git a/assembler/gram.y b/assembler/gram.y index 8b56bd9a..9a4e5103 100644 --- a/assembler/gram.y +++ b/assembler/gram.y @@ -276,6 +276,7 @@ static void resolve_subnr(struct brw_reg *reg) %} +%locations %start ROOT diff --git a/assembler/lex.l b/assembler/lex.l index 626042f6..769d98b1 100644 --- a/assembler/lex.l +++ b/assembler/lex.l @@ -9,6 +9,15 @@ int saved_state = 0; extern char *input_filename; +/* Locations */ +int yycolumn = 1; + +#define YY_USER_ACTION \ + yylloc.first_line = yylloc.last_line = yylineno; \ + yylloc.first_column = yycolumn; \ + yylloc.last_column = yycolumn+yyleng-1; \ + yycolumn += yyleng; + %} %x BLOCK_COMMENT %x CHANNEL @@ -16,11 +25,11 @@ extern char *input_filename; %x FILENAME %% -\/\/.*[\r\n] { } /* eat up single-line comments */ -"\.kernel".*[\r\n] { } -"\.end_kernel".*[\r\n] { } -"\.code".*[\r\n] { } -"\.end_code".*[\r\n] { } +\/\/.*[\r\n] { yycolumn = 1; } /* eat up single-line comments */ +"\.kernel".*[\r\n] { yycolumn = 1; } +"\.end_kernel".*[\r\n] { yycolumn = 1; } +"\.code".*[\r\n] { yycolumn = 1; } +"\.end_code".*[\r\n] { yycolumn = 1; } /* eat up multi-line comments, non-nesting. */ \/\* { @@ -33,6 +42,7 @@ extern char *input_filename; . { } [\r\n] { } "#line"" "* { + yycolumn = 1; saved_state = YYSTATE; BEGIN(LINENUMBER); } @@ -407,7 +417,9 @@ yylval.integer = BRW_CHANNEL_W; return NUMBER; } -[ \t\n]+ { } /* eat up whitespace */ +[ \t]+ { } /* eat up whitespace */ + +\n { yycolumn = 1; } . { fprintf(stderr, "%s: %d: %s at \"%s\"\n", -- cgit v1.2.3