From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2092) id 865003858412; Fri, 12 Aug 2022 16:30:28 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 865003858412 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Andrea Corallo To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/vendors/ARM/heads/arm-12-m-pacbti)] [PATCH 4/15] arm: Add testsuite library support for PACBTI target X-Act-Checkin: gcc X-Git-Author: Andrea Corallo X-Git-Refname: refs/vendors/ARM/heads/arm-12-m-pacbti X-Git-Oldrev: 22c360bf3f811e7de4a34191d91f77311992841b X-Git-Newrev: 8039cb94e9a496163efa75e39990d02adf71f187 Message-Id: <20220812163028.865003858412@sourceware.org> Date: Fri, 12 Aug 2022 16:30:28 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Aug 2022 16:30:28 -0000 https://gcc.gnu.org/g:8039cb94e9a496163efa75e39990d02adf71f187 commit 8039cb94e9a496163efa75e39990d02adf71f187 Author: Andrea Corallo Date: Mon Dec 6 11:39:35 2021 +0100 [PATCH 4/15] arm: Add testsuite library support for PACBTI target Add targeting-checking entities for PACBTI in testsuite framework. Pre-approved with the requested changes here . gcc/testsuite/ChangeLog: * testsuite/lib/target-supports.exp: (check_effective_target_arm_pacbti_hw): New. * doc/sourcebuild.texi: Document arm_pacbti_hw. Co-Authored-By: Tejas Belagod Diff: --- gcc/doc/sourcebuild.texi | 10 ++++++++++ gcc/testsuite/lib/target-supports.exp | 16 ++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi index 71c04841df2..52162c061bd 100644 --- a/gcc/doc/sourcebuild.texi +++ b/gcc/doc/sourcebuild.texi @@ -2167,6 +2167,10 @@ ARM target supports options to generate instructions from ARMv8.1-M with the Custom Datapath Extension (CDE) and M-Profile Vector Extension (MVE). Some multilibs may be incompatible with these options. +@item arm_pacbti_hw +Test system supports executing Pointer Authentication and Branch Target +Identification instructions. + @item arm_prefer_ldrd_strd ARM target prefers @code{LDRD} and @code{STRD} instructions over @code{LDM} and @code{STM} instructions. @@ -2256,6 +2260,12 @@ ARM target generates Thumb-2 code for @code{-mthumb} but does not support executing the Armv8.1-M Mainline Low Overhead Loop instructions @code{DLS} and @code{LE}. +@item mbranch_protection_ok +ARM target supporting @code{-mbranch-protection=standard}. + +@item arm_pacbti_hw +Test system supports for executing non nop pacbti instructions. + @end table @subsubsection AArch64-specific attributes diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index 244fe2306f4..32fe525f8a5 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -5123,6 +5123,22 @@ proc check_effective_target_arm_cmse_clear_ok {} { } "-mcmse"]; } +# Return 1 if the target supports executing PACBTI instructions, 0 +# otherwise. + +proc check_effective_target_arm_pacbti_hw {} { + return [check_runtime arm_pacbti_hw_available { + __attribute__ ((naked)) int + main (void) + { + asm ("pac r12, lr, sp"); + asm ("mov r0, #0"); + asm ("autg r12, lr, sp"); + asm ("bx lr"); + } + } "-march=armv8.1-m.main+pacbti+fp -mbranch-protection=standard -mthumb -mfloat-abi=hard"] +} + # Return 1 if this compilation turns on string_ops_prefer_neon on. proc check_effective_target_arm_tune_string_ops_prefer_neon { } {