From: Jeremy Linton <jeremy.linton@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kbuild@vger.kernel.org, linux-modules@vger.kernel.org,
broonie@kernel.org, jpoimboe@kernel.org, nathan@kernel.org,
nsc@kernel.org, mcgrof@kernel.org, petr.pavlu@suse.com,
da.gomez@kernel.org, samitolvanen@google.com,
atomlin@atomlin.com, ndesaulniers@google.com,
mark.rutland@arm.com, will@kernel.org, catalin.marinas@arm.com,
ardb@kernel.org, Emanuele.Rocca@arm.com,
linux-kernel@vger.kernel.org,
Jeremy Linton <jeremy.linton@arm.com>
Subject: [RFC 3/3] arm64: bti: Drop compiler specific BTI checks
Date: Tue, 6 Oct 2026 17:18:15 -0500 [thread overview]
Message-ID: <20261006221815.2823252-4-jeremy.linton@arm.com> (raw)
In-Reply-To: <20261006221815.2823252-1-jeremy.linton@arm.com>
Now that modules with missing BTI landing pads have veneers explicitly
added, the need for compiler revision specific checks can be dropped.
The link pass will correct the specific cases that both clang and gcc
now generate.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
---
arch/arm64/Kconfig | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index cab741a695f5..aea4c34a18bc 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2196,12 +2196,6 @@ config ARM64_BTI_KERNEL
depends on ARM64_BTI
depends on ARM64_PTR_AUTH_KERNEL
depends on CC_HAS_BRANCH_PROT_PAC_RET_BTI
- # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94697
- depends on !CC_IS_GCC || GCC_VERSION >= 100100
- # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106671
- depends on !CC_IS_GCC
- # https://github.com/llvm/llvm-project/issues/215547
- depends on !CC_IS_CLANG || CLANG_VERSION < 210000
depends on (!FUNCTION_GRAPH_TRACER || DYNAMIC_FTRACE_WITH_ARGS)
help
Build the kernel with Branch Target Identification annotations
--
2.55.0
next prev parent reply other threads:[~2026-10-06 22:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-06 22:18 [RFC 0/3] kbuild: modules: Fixup arm64 BTI relocations Jeremy Linton
2026-10-06 22:18 ` [RFC 1/3] kbuild: modules: Add arm64 BTI fixup utility Jeremy Linton
2026-10-06 22:18 ` [RFC 2/3] kbuild: modules: Build and trigger BTI scanner for arm64 Jeremy Linton
2026-10-06 22:18 ` Jeremy Linton [this message]
2026-10-07 8:09 ` [RFC 0/3] kbuild: modules: Fixup arm64 BTI relocations Emanuele Rocca
2026-10-07 8:25 ` Mark Brown
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