A longstanding issue with genksyms is that it has hidden syntax errors.
When a syntax error occurs, yyerror() is called. However,
error_with_pos() is a no-op unless the -w option is provided.
You can observe syntax errors by manually passing the -w option.
For example, genksyms fails to parse the following code in
arch/arm64/lib/xor-neon.c:
static inline uint64x2_t eor3(uint64x2_t p, uint64x2_t q, uint64x2_t r)
{
[ snip ]
}
The syntax error occurs because genksyms does not recognize the
uint64x2_t keyword.
This commit adds support for builtin types described in Arm Neon
Intrinsics Reference.
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
scripts/genksyms/lex.l | 1 +
1 file changed, 1 insertion(+)
diff --git a/scripts/genksyms/lex.l b/scripts/genksyms/lex.l
index a1f969dcf24f..22aeb57649d9 100644
--- a/scripts/genksyms/lex.l
+++ b/scripts/genksyms/lex.l
@@ -51,6 +51,7 @@ MC_TOKEN ([~%^&*+=|<>/-]=)|(&&)|("||")|(->)|(<<)|(>>)
%%
+u?int(8|16|32|64)x(1|2|4|8|16)_t return BUILTIN_INT_KEYW;
/* Keep track of our location in the original source files. */
^#[ \t]+{INT}[ \t]+\"[^\"\n]+\".*\n return FILENAME;
--
2.43.0
