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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-09 11:04:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-09 11:04:16 -0700 |
| commit | 87ebc45d2d32936fb1c8242032eb0b9bcd058858 (patch) | |
| tree | d5f32252db7a56da284f22a2837ebfa13f78bbd7 /arch/arm64/Kconfig | |
| parent | e4da01d8333e500e15a674d75885a9dfcfd31e77 (diff) | |
| parent | fc2266011accd5aeb8ebc335c381991f20e26e33 (diff) | |
| download | lwn-87ebc45d2d32936fb1c8242032eb0b9bcd058858.tar.gz lwn-87ebc45d2d32936fb1c8242032eb0b9bcd058858.zip | |
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Ensure that the compiler and linker versions are aligned so that ld
doesn't complain about not understanding a .note.gnu.property section
(emitted when pointer authentication is enabled).
- Force -mbranch-protection=none when the feature is not enabled, in
case a compiler may choose a different default value.
- Remove CONFIG_DEBUG_ALIGN_RODATA. It was never in defconfig and
rarely enabled.
- Fix checking 16-bit Thumb-2 instructions checking mask in the
emulation of the SETEND instruction (it could match the bottom half
of a 32-bit Thumb-2 instruction).
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: armv8_deprecated: Fix undef_hook mask for thumb setend
arm64: remove CONFIG_DEBUG_ALIGN_RODATA feature
arm64: Always force a branch protection mode when the compiler has one
arm64: Kconfig: ptrauth: Add binutils version check to fix mismatch
init/kconfig: Add LD_VERSION Kconfig
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 6e41c4b62607..40fb05d96c60 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1502,7 +1502,10 @@ config ARM64_PTR_AUTH default y depends on !KVM || ARM64_VHE depends on (CC_HAS_SIGN_RETURN_ADDRESS || CC_HAS_BRANCH_PROT_PAC_RET) && AS_HAS_PAC - depends on CC_IS_GCC || (CC_IS_CLANG && AS_HAS_CFI_NEGATE_RA_STATE) + # GCC 9.1 and later inserts a .note.gnu.property section note for PAC + # which is only understood by binutils starting with version 2.33.1. + depends on !CC_IS_GCC || GCC_VERSION < 90100 || LD_VERSION >= 233010000 + depends on !CC_IS_CLANG || AS_HAS_CFI_NEGATE_RA_STATE depends on (!FUNCTION_GRAPH_TRACER || DYNAMIC_FTRACE_WITH_REGS) help Pointer authentication (part of the ARMv8.3 Extensions) provides |