[PATCH] genksyms: Teach parse about __uint128_t built-in type

From: Will Deacon
Date: Tue Jun 18 2019 - 07:56:49 EST


__uint128_t crops up in a few files that export symbols to modules, so
teach genksyms about it so that we don't end up skipping the CRC
generation for some symbols due to the parser failing to spot them:

| WARNING: EXPORT symbol "kernel_neon_begin" [vmlinux] version
| generation failed, symbol will not be versioned.
| ld: arch/arm64/kernel/fpsimd.o: relocation R_AARCH64_ABS32 against
| `__crc_kernel_neon_begin' can not be used when making a shared
| object
| ld: arch/arm64/kernel/fpsimd.o:(.data+0x0): dangerous relocation:
| unsupported relocation

Cc: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Reported-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
---
scripts/genksyms/keywords.c | 1 +
scripts/genksyms/parse.y | 2 ++
2 files changed, 3 insertions(+)

diff --git a/scripts/genksyms/keywords.c b/scripts/genksyms/keywords.c
index 9f40bcd17d07..6ec585febfa4 100644
--- a/scripts/genksyms/keywords.c
+++ b/scripts/genksyms/keywords.c
@@ -53,6 +53,7 @@ static struct resword {
{ "struct", STRUCT_KEYW },
{ "typedef", TYPEDEF_KEYW },
{ "typeof", TYPEOF_KEYW },
+ { "__uint128_t", BUILTIN_INT_KEYW },
{ "union", UNION_KEYW },
{ "unsigned", UNSIGNED_KEYW },
{ "void", VOID_KEYW },
diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y
index 00a6d7e54971..1ebcf52cd0f9 100644
--- a/scripts/genksyms/parse.y
+++ b/scripts/genksyms/parse.y
@@ -76,6 +76,7 @@ static void record_compound(struct string_list **keyw,
%token ATTRIBUTE_KEYW
%token AUTO_KEYW
%token BOOL_KEYW
+%token BUILTIN_INT_KEYW
%token CHAR_KEYW
%token CONST_KEYW
%token DOUBLE_KEYW
@@ -263,6 +264,7 @@ simple_type_specifier:
| VOID_KEYW
| BOOL_KEYW
| VA_LIST_KEYW
+ | BUILTIN_INT_KEYW
| TYPE { (*$1)->tag = SYM_TYPEDEF; $$ = $1; }
;

--
2.11.0