From: Jamie Cunliffe <Jamie.Cunliffe@arm.com>
To: linux-arm-kernel@lists.infradead.org, rust-for-linux@vger.kernel.org
Cc: Miguel Ojeda <ojeda@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
steve.capper@arm.com
Subject: [PATCH 2/3] arm64: rust: Enable PAC support for Rust.
Date: Wed, 25 Jan 2023 16:37:38 +0000 [thread overview]
Message-ID: <20230125163739.3798252-3-Jamie.Cunliffe@arm.com> (raw)
In-Reply-To: <20230125163739.3798252-1-Jamie.Cunliffe@arm.com>
Enable the PAC ret and BTI options in the Rust build flags to match
the options that are used when building C.
Signed-off-by: Jamie Cunliffe <Jamie.Cunliffe@arm.com>
---
arch/arm64/Makefile | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index d62bd221828f..b53ab6aa2dfe 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -85,8 +85,10 @@ PACRET-$(CONFIG_UNWIND_PATCH_PAC_INTO_SCS) := pac-ret
ifeq ($(CONFIG_ARM64_BTI_KERNEL),y)
branch-prot-flags-$(CONFIG_CC_HAS_BRANCH_PROT_PAC_RET_BTI) := -mbranch-protection=$(PACRET-y)+bti
+KBUILD_RUSTFLAGS += -Z branch-protection=bti,pac-ret,leaf
else
branch-prot-flags-$(CONFIG_CC_HAS_BRANCH_PROT_PAC_RET) := -mbranch-protection=$(PACRET-y)
+KBUILD_RUSTFLAGS += -Z branch-protection=pac-ret,leaf
endif
# -march=armv8.3-a enables the non-nops instructions for PAC, to avoid the
# compiler to generate them and consequently to break the single image contract
--
2.30.2
next prev parent reply other threads:[~2023-01-25 16:38 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-25 16:37 [PATCH 0/3] Rust enablement for AArch64 Jamie Cunliffe
2023-01-25 16:37 ` [PATCH 1/3] arm64: rust: Enable Rust support " Jamie Cunliffe
2023-01-25 19:50 ` Vincenzo Palazzo
2023-01-25 19:56 ` Vincenzo Palazzo
2023-01-26 16:35 ` Will Deacon
2023-01-26 17:56 ` Miguel Ojeda
2023-01-31 16:19 ` Will Deacon
2023-01-31 16:49 ` Björn Roy Baron
2023-01-31 18:55 ` Miguel Ojeda
2023-04-18 15:06 ` Jamie Cunliffe
2023-01-27 14:09 ` Gary Guo
2023-05-02 13:41 ` Asahi Lina
2023-01-25 16:37 ` Jamie Cunliffe [this message]
2023-01-25 19:54 ` [PATCH 2/3] arm64: rust: Enable PAC support for Rust Vincenzo Palazzo
2023-01-25 16:37 ` [PATCH 3/3] arm64: rust: Disable neon and fp target features Jamie Cunliffe
2023-01-25 17:49 ` Miguel Ojeda
2023-01-25 19:55 ` Vincenzo Palazzo
2023-01-26 16:37 ` Will Deacon
2023-01-25 18:01 ` [PATCH 0/3] Rust enablement for AArch64 Miguel Ojeda
2023-03-07 9:32 ` Asahi Lina
2023-03-07 12:17 ` Miguel Ojeda
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230125163739.3798252-3-Jamie.Cunliffe@arm.com \
--to=jamie.cunliffe@arm.com \
--cc=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=ojeda@kernel.org \
--cc=rust-for-linux@vger.kernel.org \
--cc=steve.capper@arm.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).