From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: llvm@lists.linux.dev
Cc: Nathan Lynch <nathanl@linux.ibm.com>,
Fabiano Rosas <farosas@linux.ibm.com>,
Alexey Kardashevskiy <aik@ozlabs.ru>,
Nick Desaulniers <ndesaulniers@google.com>,
Nicholas Piggin <npiggin@gmail.com>,
Nathan Chancellor <nathan@kernel.org>,
Joel Stanley <joel@jms.id.au>,
"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, Daniel Axtens <dja@axtens.net>
Subject: [PATCH kernel 1/3] powerpc/64: Allow LLVM LTO builds
Date: Fri, 11 Feb 2022 13:31:23 +1100 [thread overview]
Message-ID: <20220211023125.1790960-2-aik@ozlabs.ru> (raw)
In-Reply-To: <20220211023125.1790960-1-aik@ozlabs.ru>
The upstream LLVM supports now LTO on PPC, enable it.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
arch/powerpc/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b779603978e1..91c122224f83 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -153,6 +153,8 @@ config PPC
select ARCH_WANT_IRQS_OFF_ACTIVATE_MM
select ARCH_WANT_LD_ORPHAN_WARN
select ARCH_WEAK_RELEASE_ACQUIRE
+ select ARCH_SUPPORTS_LTO_CLANG if PPC64
+ select ARCH_SUPPORTS_LTO_CLANG_THIN if PPC64
select BINFMT_ELF
select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS
--
2.30.2
next prev parent reply other threads:[~2022-02-11 2:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-11 2:31 [PATCH kernel 0/3] powerpc/llvm/lto: Enable CONFIG_LTO_CLANG_THIN=y Alexey Kardashevskiy
2022-02-11 2:31 ` Alexey Kardashevskiy [this message]
2022-02-11 2:31 ` [PATCH kernel 2/3] powerpc/llvm: Sample config for LLVM LTO Alexey Kardashevskiy
2022-02-11 11:44 ` Naveen N. Rao
2022-02-12 0:05 ` Nick Desaulniers
2022-02-16 1:28 ` Alexey Kardashevskiy
2022-02-11 2:31 ` [PATCH kernel 3/3] powerpc/llvm/lto: Workaround conditional branches in FTR_SECTION_ELSE Alexey Kardashevskiy
2022-02-11 6:44 ` Russell Currey
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