From 3550a516d07dda4786c63e86f64f4f440db58782 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Tue, 28 Aug 2007 20:28:55 +0200
Subject: [PATCH] kbuild: __extension__ support in genksyms (fix unknown CRC
warning)
Recently the __extension__ keyword has been introduced in the kernel.
Teach genksyms about this keyword so it can generate correct CRC for
exported symbols that uses a symbol marked __extension__.
For now only the typedef variant:
__extension__ typedef ...
is supported.
Later we may add more variants as needed.
This patch contains the actual source file changes. The
following patch will hold modifications to the generated
files (*_shipped) and only after the second patch the fix
has effect.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
scripts/genksyms/keywords.gperf | 1 +
scripts/genksyms/parse.y | 5 ++++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/scripts/genksyms/keywords.gperf b/scripts/genksyms/keywords.gperf
index c75e0c8d8f0c4..5ef3733225fb9 100644
--- a/scripts/genksyms/keywords.gperf
+++ b/scripts/genksyms/keywords.gperf
@@ -11,6 +11,7 @@ __attribute, ATTRIBUTE_KEYW
__attribute__, ATTRIBUTE_KEYW
__const, CONST_KEYW
__const__, CONST_KEYW
+__extension__, EXTENSION_KEYW
__inline, INLINE_KEYW
__inline__, INLINE_KEYW
__signed, SIGNED_KEYW
diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y
index ca04c944b7c3f..408cdf82b2718 100644
--- a/scripts/genksyms/parse.y
+++ b/scripts/genksyms/parse.y
@@ -61,6 +61,7 @@ remove_list(struct string_list **pb, struct string_list **pe)
%token DOUBLE_KEYW
%token ENUM_KEYW
%token EXTERN_KEYW
+%token EXTENSION_KEYW
%token FLOAT_KEYW
%token INLINE_KEYW
%token INT_KEYW
@@ -110,7 +111,9 @@ declaration:
;
declaration1:
- TYPEDEF_KEYW { is_typedef = 1; } simple_declaration
+ EXTENSION_KEYW TYPEDEF_KEYW { is_typedef = 1; } simple_declaration
+ { $$ = $4; }
+ | TYPEDEF_KEYW { is_typedef = 1; } simple_declaration
{ $$ = $3; }
| simple_declaration
| function_definition
--
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