diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2022-09-09 00:55:02 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2022-09-26 20:13:15 +0300 |
| commit | ccace936eec7b805e1ab9268a6d163a00047b3a9 (patch) | |
| tree | 407c8ce8cb9f0b30332323db255d1107bedfea41 /arch/x86/crypto/blowfish-x86_64-asm_64.S | |
| parent | ca7e10bff196f69a450b9072a7b757713d3bb2dd (diff) | |
| download | linux-ccace936eec7b805e1ab9268a6d163a00047b3a9.tar.xz | |
x86: Add types to indirectly called assembly functions
With CONFIG_CFI_CLANG, assembly functions indirectly called
from C code must be annotated with type identifiers to pass CFI
checking. Define the __CFI_TYPE helper macro to match the compiler
generated function preamble, and ensure SYM_TYPED_FUNC_START also
emits ENDBR with IBT.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220908215504.3686827-21-samitolvanen@google.com
Diffstat (limited to 'arch/x86/crypto/blowfish-x86_64-asm_64.S')
| -rw-r--r-- | arch/x86/crypto/blowfish-x86_64-asm_64.S | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S index 802d71582689..4a43e072d2d1 100644 --- a/arch/x86/crypto/blowfish-x86_64-asm_64.S +++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S @@ -6,6 +6,7 @@ */ #include <linux/linkage.h> +#include <linux/cfi_types.h> .file "blowfish-x86_64-asm.S" .text @@ -141,7 +142,7 @@ SYM_FUNC_START(__blowfish_enc_blk) RET; SYM_FUNC_END(__blowfish_enc_blk) -SYM_FUNC_START(blowfish_dec_blk) +SYM_TYPED_FUNC_START(blowfish_dec_blk) /* input: * %rdi: ctx * %rsi: dst @@ -332,7 +333,7 @@ SYM_FUNC_START(__blowfish_enc_blk_4way) RET; SYM_FUNC_END(__blowfish_enc_blk_4way) -SYM_FUNC_START(blowfish_dec_blk_4way) +SYM_TYPED_FUNC_START(blowfish_dec_blk_4way) /* input: * %rdi: ctx * %rsi: dst |