From: Sami Tolvanen <samitolvanen@google.com>
To: Alex Matveev <alxmtvv@gmail.com>, Andi Kleen <ak@linux.intel.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Greg Hackmann <ghackmann@google.com>,
Kees Cook <keescook@chromium.org>,
linux-arm-kernel@lists.infradead.org,
linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
Mark Rutland <mark.rutland@arm.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>,
Michal Marek <michal.lkml@markovi.net>,
Nick Desaulniers <ndesaulniers@google.com>,
Yury Norov <ynorov@caviumnetworks.com>,
Matthias Kaehlcke <mka@chromium.org>,
Nicholas Piggin <npiggin@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Subject: [PATCH 5/7] arm64: keep .altinstructions and .altinstr_replacement
Date: Wed, 29 Nov 2017 15:44:40 -0800 [thread overview]
Message-ID: <20171129234442.655-6-samitolvanen@google.com> (raw)
In-Reply-To: <20171129234442.655-1-samitolvanen@google.com>
Make sure the linker doesn't remove .altinstructions or
.altinstr_replacement when CONFIG_LD_DEAD_CODE_DATA_ELIMINATION is
enabled.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
---
arch/arm64/kernel/vmlinux.lds.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 7da3e5c366a0..15479995869c 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -138,11 +138,11 @@ SECTIONS
. = ALIGN(4);
.altinstructions : {
__alt_instructions = .;
- *(.altinstructions)
+ KEEP(*(.altinstructions))
__alt_instructions_end = .;
}
.altinstr_replacement : {
- *(.altinstr_replacement)
+ KEEP(*(.altinstr_replacement))
}
. = ALIGN(PAGE_SIZE);
--
2.15.0.531.g2ccb3012c9-goog
next prev parent reply other threads:[~2017-11-29 23:45 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-29 23:44 [PATCH 0/7] Add support for GNU gold Sami Tolvanen
2017-11-29 23:44 ` [PATCH 1/7] kbuild: add ld-name macro and " Sami Tolvanen
2017-11-30 0:32 ` Nick Desaulniers
2017-11-30 17:38 ` Sami Tolvanen
2017-11-29 23:44 ` [PATCH 2/7] kbuild: add ld-if-name-version and linker-specific macros Sami Tolvanen
2017-11-29 23:44 ` [PATCH 3/7] kbuild: fix LD_DEAD_CODE_DATA_ELIMINATION with GNU gold Sami Tolvanen
2017-11-30 2:10 ` Nicholas Piggin
2017-11-29 23:44 ` [PATCH 4/7] arm64: fix -m for " Sami Tolvanen
2017-11-29 23:44 ` Sami Tolvanen [this message]
2017-11-29 23:57 ` [PATCH 5/7] arm64: keep .altinstructions and .altinstr_replacement Nick Desaulniers
2017-11-30 1:58 ` Nicholas Piggin
2017-11-30 17:00 ` Nick Desaulniers
2017-12-01 0:36 ` Nicholas Piggin
2017-11-30 17:48 ` Sami Tolvanen
2017-11-29 23:44 ` [PATCH 6/7] arm64: explicitly pass --no-fix-cortex-a53-843419 to GNU gold Sami Tolvanen
2017-11-30 0:30 ` Nick Desaulniers
2017-11-30 17:50 ` Sami Tolvanen
2017-11-29 23:44 ` [PATCH 7/7] arm64: add a workaround for GNU gold with ARM64_MODULE_PLTS Sami Tolvanen
2017-11-30 9:31 ` Ard Biesheuvel
2017-11-30 23:38 ` [PATCH v2 0/7] Add support for GNU gold Sami Tolvanen
2017-11-30 23:38 ` [PATCH v2 1/7] kbuild: fix LD_DEAD_CODE_DATA_ELIMINATION Sami Tolvanen
2017-11-30 23:39 ` [PATCH v2 2/7] arm64: keep .altinstructions and .altinstr_replacement Sami Tolvanen
2017-11-30 23:39 ` [PATCH v2 3/7] kbuild: add ld-name macro Sami Tolvanen
2017-11-30 23:39 ` [PATCH v2 4/7] kbuild: add __ld-ifversion and linker-specific macros Sami Tolvanen
2017-11-30 23:39 ` [PATCH v2 5/7] arm64: fix -m for GNU gold Sami Tolvanen
2017-11-30 23:39 ` [PATCH v2 6/7] arm64: explicitly pass --no-fix-cortex-a53-843419 to " Sami Tolvanen
2017-12-01 0:13 ` Nick Desaulniers
2017-11-30 23:39 ` [PATCH v2 7/7] arm64: add a workaround for GNU gold with ARM64_MODULE_PLTS Sami Tolvanen
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