kbuild: __extension__ support in genksyms (fix unknown CRC warning) (3550a516) · Commits · 戴 / test

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 −0

Original line number	Diff line number	Diff line
		@@ -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

scripts/genksyms/parse.y

+4 −1

Original line number	Diff line number	Diff line
		@@ -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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