diff options
| author | Masahiro Yamada <masahiroy@kernel.org> | 2024-06-12 07:02:55 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-06-20 19:48:18 +0200 |
| commit | 469169803d52a5d8f0dc781090638e851a7d22b1 (patch) | |
| tree | 3d1c43c96c26e2babf2e7df7de44bc9bc43f0cf8 /arch/x86/Kconfig.assembler | |
| parent | Linux 6.10-rc4 (diff) | |
| download | linux-469169803d52a5d8f0dc781090638e851a7d22b1.tar.xz linux-469169803d52a5d8f0dc781090638e851a7d22b1.zip | |
x86/kconfig: Add as-instr64 macro to properly evaluate AS_WRUSS
Some instructions are only available on the 64-bit architecture.
Bi-arch compilers that default to -m32 need the explicit -m64 option
to evaluate them properly.
Fixes: 18e66b695e78 ("x86/shstk: Add Kconfig option for shadow stack")
Closes: https://lore.kernel.org/all/20240612-as-instr-opt-wrussq-v2-1-bd950f7eead7@gmail.com/
Reported-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://lore.kernel.org/r/20240612050257.3670768-1-masahiroy@kernel.org
Diffstat (limited to 'arch/x86/Kconfig.assembler')
| -rw-r--r-- | arch/x86/Kconfig.assembler | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler index 59aedf32c4ea..6d20a6ce0507 100644 --- a/arch/x86/Kconfig.assembler +++ b/arch/x86/Kconfig.assembler @@ -36,6 +36,6 @@ config AS_VPCLMULQDQ Supported by binutils >= 2.30 and LLVM integrated assembler config AS_WRUSS - def_bool $(as-instr,wrussq %rax$(comma)(%rbx)) + def_bool $(as-instr64,wrussq %rax$(comma)(%rbx)) help Supported by binutils >= 2.31 and LLVM integrated assembler |