From: Richard Earnshaw <Richard.Earnshaw@foss.arm.com>
To: Andrea Corallo <andrea.corallo@arm.com>,
Andrea Corallo via Gcc-patches <gcc-patches@gcc.gnu.org>
Cc: Richard Earnshaw <Richard.Earnshaw@arm.com>, nd <nd@arm.com>
Subject: Re: [PATCH 7/12] arm: Emit build attributes for PACBTI target feature
Date: Fri, 1 Jul 2022 15:49:15 +0100 [thread overview]
Message-ID: <7cbe01d8-96a6-7e33-ebe0-761e8a6b14c7@foss.arm.com> (raw)
In-Reply-To: <gkrsfpxv8wx.fsf@arm.com>
On 28/04/2022 10:45, Andrea Corallo via Gcc-patches wrote:
> This patch emits assembler directives for PACBTI build attributes as
> defined by the
> ABI.
>
> <https://github.com/ARM-software/abi-aa/releases/download/2021Q1/addenda32.pdf>
>
> gcc/ChangeLog:
>
> * config/arm/arm.c (arm_file_start): Emit EABI attributes for
> Tag_PAC_extension, Tag_BTI_extension, TAG_BTI_use, TAG_PACRET_use.
This bit is OK.
>
> gcc/testsuite/ChangeLog:
>
> * gcc.target/arm/acle/pacbti-m-predef-1.c: New test.
> * gcc.target/arm/acle/pacbti-m-predef-3: Likewise.
> * gcc.target/arm/acle/pacbti-m-predef-6.c: Likewise.
> * gcc.target/arm/acle/pacbti-m-predef-7.c: Likewise.
These tests contain directives like:
+/* { dg-additional-options " -mbranch-protection=pac-ret+bti
--save-temps" } */
But they don't check that the architecture permits this (it has to be
armv8-m.main or later).
>
> Co-Authored-By: Tejas Belagod <tbelagod@arm.com>
>
R.
next prev parent reply other threads:[~2022-07-01 14:49 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-28 8:39 [PATCH 0/12] arm: Enables return address verification and branch target identification on Cortex-M Andrea Corallo
2022-04-28 9:08 ` [PATCH 1/12] arm: Make mbranch-protection opts parsing common to AArch32/64 Andrea Corallo
2022-07-01 10:49 ` Richard Earnshaw
2022-04-28 9:37 ` [PATCH 2/12] arm: Add Armv8.1-M Mainline target feature +pacbti Andrea Corallo
2022-07-01 10:51 ` Richard Earnshaw
2022-04-28 9:38 ` [PATCH 3/12] arm: Add option -mbranch-protection Andrea Corallo
2022-07-01 10:59 ` Richard Earnshaw
2022-07-04 9:27 ` [PATCH 3/12 V2] " Andrea Corallo
2022-07-04 10:55 ` Richard Earnshaw
2022-04-28 9:40 ` [PATCH 4/12] arm: Add testsuite library support for PACBTI target Andrea Corallo
2022-07-01 13:03 ` Richard Earnshaw
2022-07-01 14:17 ` Richard Earnshaw
2022-07-04 14:47 ` Andrea Corallo
2022-07-05 10:05 ` Richard Earnshaw
2022-04-28 9:42 ` [PATCH 5/12] arm: Implement target feature macros for PACBTI Andrea Corallo
2022-07-01 14:26 ` Richard Earnshaw
2022-07-12 15:45 ` [PATCH 5/12 V2] " Andrea Corallo
2022-07-21 11:01 ` Richard Earnshaw
2022-07-22 10:35 ` [PATCH 5/12 V3] " Andrea Corallo
2022-07-22 14:34 ` [PATCH 5/12 V4] " Andrea Corallo
2022-04-28 9:44 ` [PATCH 6/12] arm: Add pointer authentication for stack-unwinding runtime Andrea Corallo
2022-07-01 14:41 ` Richard Earnshaw
2022-11-09 11:17 ` [PATCH 6/12 V2] " Andrea Corallo
2022-04-28 9:45 ` [PATCH 7/12] arm: Emit build attributes for PACBTI target feature Andrea Corallo
2022-07-01 14:49 ` Richard Earnshaw [this message]
2022-07-13 8:58 ` [PATCH 7/12 V2] " Andrea Corallo
2022-07-21 11:03 ` Richard Earnshaw
2022-07-22 14:57 ` Andrea Corallo
2022-04-28 9:46 ` [PATCH 8/12] arm: Introduce multilibs " Andrea Corallo
2022-06-01 12:32 ` [PATCH 8/12 V2] " Andrea Corallo
2022-07-01 14:54 ` Richard Earnshaw
2022-07-01 14:57 ` Richard Earnshaw
2022-07-21 9:04 ` [PATCH 8/12 V3] " Andrea Corallo
2022-07-21 11:09 ` Richard Earnshaw
2022-04-28 9:48 ` [PATCH 9/12] arm: Make libgcc bti compatible Andrea Corallo
2022-07-01 15:03 ` Richard Earnshaw
2022-07-21 9:17 ` [PATCH 9/12 V2] " Andrea Corallo
2022-07-21 11:41 ` Richard Earnshaw
2022-07-22 15:09 ` Andrea Corallo
2022-07-25 10:41 ` Richard Earnshaw
2022-12-12 14:54 ` Andrea Corallo
2022-04-28 9:50 ` [PATCH 10/12] arm: Implement cortex-M return signing address codegen Andrea Corallo
2022-06-28 9:17 ` [PATCH 10/12 V2] " Andrea Corallo
2022-07-01 15:43 ` Richard Earnshaw
2022-08-08 9:33 ` Andrea Corallo
2022-10-20 14:53 ` Kyrylo Tkachov
2022-04-28 9:51 ` [PATCH 11/12] aarch64: Make bti pass generic so it can be used by the arm backend Andrea Corallo
2022-05-06 8:23 ` Richard Sandiford
2022-07-01 15:53 ` Richard Earnshaw
2022-04-28 9:53 ` [PATCH 12/12] arm: implement bti injection Andrea Corallo
2022-06-28 9:21 ` [PATCH 12/12 V2] " Andrea Corallo
2022-07-01 16:04 ` Richard Earnshaw
2022-06-01 12:34 ` [PATCH 0/12] arm: Enables return address verification and branch target identification on Cortex-M Andrea Corallo
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