diff options
| author | Uros Bizjak <ubizjak@gmail.com> | 2024-05-20 10:21:14 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-05-21 10:17:01 +0200 |
| commit | 47ff30cc1be7bf426c03ecc84371452109b416e4 (patch) | |
| tree | 1b50aaba3ff1cc0c91dc93c74e3b7eb136fc05c1 /arch/x86/Kconfig | |
| parent | x86/percpu: Clean up <asm/percpu.h> vertical alignment details (diff) | |
| download | linux-47ff30cc1be7bf426c03ecc84371452109b416e4.tar.xz linux-47ff30cc1be7bf426c03ecc84371452109b416e4.zip | |
x86/percpu: Enable named address spaces for all capable GCC versions
Enable named address spaces also for GCC 6, GCC 7 and GCC 8
releases. These compilers all produce kernel images that boot
without problems.
Use compile-time test to detect compiler support for named
address spaces. The test passes with GCC 6 as the earliest
compiler version where the support for named address spaces
was introduced.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20240520082134.121320-1-ubizjak@gmail.com
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 9d16fee6bdb8..c9e0a54f469e 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2430,7 +2430,8 @@ source "kernel/livepatch/Kconfig" endmenu config CC_HAS_NAMED_AS - def_bool CC_IS_GCC && GCC_VERSION >= 90100 + def_bool $(success,echo 'int __seg_fs fs; int __seg_gs gs;' | $(CC) -x c - -S -o /dev/null) + depends on CC_IS_GCC config CC_HAS_NAMED_AS_FIXED_SANITIZERS def_bool CC_IS_GCC && GCC_VERSION >= 130300 |