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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>
This commit is contained in:
Sam Ravnborg 2007-08-28 20:28:55 +02:00 committed by Sam Ravnborg
parent a3a6261a11
commit 3550a516d0
2 changed files with 5 additions and 1 deletions
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1
scripts/genksyms/keywords.gperf
View File

@ -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

5
scripts/genksyms/parse.y
View File

@ -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