arm-gcs: add recipe for GDB with GCS support

The GCS support patches are based on GDB 15. Copy the GDB 14.2 recipe from meta, upgrade to 15.1, and add the patches. Signed-off-by: James McGregor <james.mcgregor2@arm.com>
arm-gcs/linux-yocto: update to 6.11-rc3 and v12 of the GCS patches
2026-07-18 04:27:08 +00:00 · 2024-09-13 12:35:03 +01:00 · 2024-09-02 15:46:08 +01:00 · 2024-08-07 11:53:21 +01:00 · 2024-08-06 13:37:55 +01:00 · 2024-08-06 13:37:52 +01:00
51 changed files with 15372 additions and 1309 deletions
@@ -28,6 +28,7 @@ stages:

 # Common job fragment to get a worker ready
 .setup:
+  when: manual
  tags:
    - $DEFAULT_TAG
  stage: build
@@ -89,6 +90,7 @@ stages:
 #
 update-repos:
  extends: .setup
+  when: on_success
  stage: prep
  allow_failure:
    exit_codes: 128
@@ -255,11 +257,6 @@ n1sdp:

 pending-updates:
  extends: .setup
-  # Only run this job for the default branch (master), or if forced with
-  # BUILD_FORCE_PENDING_UPDATES.
-  rules:
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
-    - if: $BUILD_FORCE_PENDING_UPDATES != null
  artifacts:
    paths:
      - update-report
@@ -358,3 +355,9 @@ sgi575:

 toolchains:
  extends: .build
+
+gcs:
+  when: on_success
+  extends: .setup
+  script:
+    - kas build meta-arm-gcs/gcs-test.yml
@@ -17,7 +17,7 @@ repos:
      meta-arm-toolchain:

  poky:
-    url: https://git.yoctoproject.org/poky
+    url: https://git.yoctoproject.org/git/poky
    layers:
      meta:
      meta-poky:
@@ -20,9 +20,9 @@ def repo_shortname(url):
            .replace('*', '.'))

 repositories = (
-    "https://git.yoctoproject.org/poky",
+    "https://git.yoctoproject.org/git/poky",
    "https://git.openembedded.org/meta-openembedded",
-    "https://git.yoctoproject.org/meta-virtualization",
+    "https://git.yoctoproject.org/git/meta-virtualization",
    "https://github.com/kraj/meta-clang",
 )

@@ -2,7 +2,6 @@ header:
  version: 13
  includes:
    - kas/arm-systemready-firmware.yml
-    - kas/arm-systemready-linux-distros-unattended-installation.yml

 target:
  - arm-systemready-linux-distros-opensuse
@@ -1,6 +0,0 @@
-header:
-  version: 14
-
-local_conf_header:
-  extsys: |
-    MACHINE_FEATURES += "corstone1000-extsys"
@@ -38,16 +38,6 @@ Platform Support
 - This software release is tested on Corstone-1000 Fast Model platform (FVP) version 11.23_25
   https://developer.arm.com/tools-and-software/open-source-software/arm-platforms-software/arm-ecosystem-fvps

-SystemReady IR v2.0 Certification Milestone
-------------------------------------------
-
-As of this release, Corstone-1000 has achieved `SystemReady IR v2.0 certification <https://www.arm.com/architecture/system-architectures/systemready-certification-program/ve>`__.
-This milestone confirms compliance with the SystemReady IR requirements, ensuring broader compatibility and reliability for deployment.
-
-Applied patch `313ad2a0e600 <https://git.yoctoproject.org/meta-arm/commit/?h=scarthgap&id=313ad2a0e600655d9bfbe53646e356372ff02644>`__ to address compatibility requirements for SystemReady IR v2.0.
-
-This update is included in tag `CORSTONE1000-2024.06-systemready-ir-v2.0 <https://git.yoctoproject.org/meta-arm/tag/?h=CORSTONE1000-2024.06-systemready-ir-v2.0>`__ and builds on the `CORSTONE1000-2024.06` release.
-
 ***********************
 Release notes - 2023.11
 ***********************
@@ -180,12 +180,6 @@ then run:

    kas build meta-arm/kas/corstone1000-fvp.yml:meta-arm/ci/debug.yml

-By default, the external system is disabled. To build the Corstone-1000 image with external system enabled, run:
-
-::
-
-    kas build meta-arm/kas/corstone1000-<fvp,mps3>.yml:meta-arm/ci/debug.yml:meta-arm/kas/corstone1000-extsys.yml
-
 The initial clean build will be lengthy, given that all host utilities are to
 be built as well as the target images. This includes host executables (python,
 cmake, etc.) and the required toolchain(s).
@@ -1450,7 +1444,6 @@ The above commands will delete the Platform key (PK) and allow the normal system

 Testing the External System
 ---------------------------
-Before testing the external system, please make sure to build the Corstone-1000 image with external system enabled as mentioned in section `Building the software stack`_.

 During Linux boot the remoteproc subsystem automatically starts
 the external system.
@@ -1,88 +0,0 @@
-From 4d3ebb03b89b122af490824ca73287954a35bd07 Mon Sep 17 00:00:00 2001
-From: Jamie Fox <jamie.fox@arm.com>
-Date: Thu, 22 Aug 2024 16:54:45 +0100
-Subject: [PATCH] Platform: corstone1000: Fix isolation L2 memory protection
-
-The whole of the SRAM was configured unprivileged on this platform, so
-the memory protection required for isolation level 2 was not present.
-
-This patch changes the S_DATA_START to S_DATA_LIMIT MPU region to be
-configured for privileged access only. It also reorders the MPU regions
-so that the App RoT sub-region overlapping S_DATA has a higher region
-number and so takes priority in the operation of the Armv6-M MPU.
-
-Signed-off-by: Jamie Fox <jamie.fox@arm.com>
-Upstream-Status: Submitted [https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/30951]
---
- .../arm/corstone1000/tfm_hal_isolation.c      | 43 +++++++++----------
- 1 file changed, 21 insertions(+), 22 deletions(-)
-
-diff --git a/platform/ext/target/arm/corstone1000/tfm_hal_isolation.c b/platform/ext/target/arm/corstone1000/tfm_hal_isolation.c
-index 39b19c535..498f14ed2 100644
--- a/platform/ext/target/arm/corstone1000/tfm_hal_isolation.c
-+++ b/platform/ext/target/arm/corstone1000/tfm_hal_isolation.c
-@@ -1,5 +1,5 @@
- /*
- * Copyright (c) 2020-2023, Arm Limited. All rights reserved.
-+ * Copyright (c) 2020-2024, Arm Limited. All rights reserved.
-  * Copyright (c) 2022 Cypress Semiconductor Corporation (an Infineon
-  * company) or an affiliate of Cypress Semiconductor Corporation. All rights
-  * reserved.
-@@ -99,6 +99,26 @@ enum tfm_hal_status_t tfm_hal_set_up_static_boundaries(
-         return ret;
-     }
- 
-+    /* Set the RAM attributes. It is needed because the first region overlaps the whole
-+     * SRAM and it has to be overridden.
-+     * The RAM_MPU_REGION_BLOCK_1_SIZE and RAM_MPU_REGION_BLOCK_2_SIZE are calculated manually
-+     * and added to the platform_region_defs compile definitions.
-+     */
-+    base = S_DATA_START;
-+    limit = S_DATA_START + RAM_MPU_REGION_BLOCK_1_SIZE;
-+    ret = configure_mpu(rnr++, base, limit,
-+                            XN_EXEC_NOT_OK, AP_RW_PRIV_ONLY);
-+    if (ret != TFM_HAL_SUCCESS) {
-+        return ret;
-+    }
-+
-+    base = S_DATA_START + RAM_MPU_REGION_BLOCK_1_SIZE;
-+    limit = S_DATA_START + RAM_MPU_REGION_BLOCK_1_SIZE + RAM_MPU_REGION_BLOCK_2_SIZE;
-+    ret = configure_mpu(rnr++, base, limit,
-+                            XN_EXEC_NOT_OK, AP_RW_PRIV_ONLY);
-+    if (ret != TFM_HAL_SUCCESS) {
-+        return ret;
-+    }
- 
-     /* RW, ZI and stack as one region */
-     base = (uint32_t)&REGION_NAME(Image$$, TFM_APP_RW_STACK_START, $$Base);
-@@ -133,27 +153,6 @@ enum tfm_hal_status_t tfm_hal_set_up_static_boundaries(
- 
- #endif
- 
-    /* Set the RAM attributes. It is needed because the first region overlaps the whole
-     * SRAM and it has to be overridden.
-     * The RAM_MPU_REGION_BLOCK_1_SIZE and RAM_MPU_REGION_BLOCK_2_SIZE are calculated manually
-     * and added to the platform_region_defs compile definitions.
-     */
-    base = S_DATA_START;
-    limit = S_DATA_START + RAM_MPU_REGION_BLOCK_1_SIZE;
-    ret = configure_mpu(rnr++, base, limit,
-                            XN_EXEC_NOT_OK, AP_RW_PRIV_UNPRIV);
-    if (ret != TFM_HAL_SUCCESS) {
-        return ret;
-    }
-
-    base = S_DATA_START + RAM_MPU_REGION_BLOCK_1_SIZE;
-    limit = S_DATA_START + RAM_MPU_REGION_BLOCK_1_SIZE + RAM_MPU_REGION_BLOCK_2_SIZE;
-    ret = configure_mpu(rnr++, base, limit,
-                            XN_EXEC_NOT_OK, AP_RW_PRIV_UNPRIV);
-    if (ret != TFM_HAL_SUCCESS) {
-        return ret;
-    }
-
-     arm_mpu_enable();
- 
- #endif /* CONFIG_TFM_ENABLE_MEMORY_PROTECT */
-- 
-2.25.1
-
@@ -29,7 +29,6 @@ SRC_URI:append:corstone1000 = " \
    file://0010-CC312-alignment-of-cc312-differences-between-fvp-and.patch \
    file://0011-Platform-corstone1000-Increase-buffers-for-EFI-vars.patch \
    file://0012-corstone1000-Remove-reset-after-capsule-update.patch \
-    file://0013-Platform-corstone1000-Fix-isolation-L2-memory-protection.patch \
    "

 # TF-M ships patches for external dependencies that needs to be applied
@@ -64,8 +64,6 @@ SRC_URI:append = " \
    file://0046-Corstone1000-Change-MMCOMM-buffer-location.patch		  \
    file://0047-corstone1000-dts-add-external-system-node.patch \
    file://0048-corstone1000-Enable-UEFI-Secure-boot.patch 			  \
-    ${@bb.utils.contains('MACHINE_FEATURES', 'corstone1000-extsys', \
-                         '', 'file://0049-corstone1000-purge-remoteproc-dts-node.patch' , d)} \
    "

 do_configure:append() {
@@ -1,34 +0,0 @@
-From 4e0ab7af882fcf498fd8beb4024ea024e6464cef Mon Sep 17 00:00:00 2001
-From: Harsimran Singh Tungal <harsimransingh.tungal@arm.com>
-Date: Wed, 14 Aug 2024 14:33:50 +0000
-Subject: [PATCH] corstone1000: purge remoteproc DTS node
-
-Purge remoteproc DTS node
-This is done to remove the remote proc node from the DTS passed
-to Linux from U-Boot because the device tree binding for remoteproc
-has not been upstreamed yet. Existence of remoteproc DTS node in Linux 
-is causing dt-schema test for SystemReady-IR v2.0 certification to fail.
-
-Upstream-Status: Pending
-Signed-off-by: Harsimran Singh Tungal <harsimransingh.tungal@arm.com>
---
- board/armltd/corstone1000/corstone1000.c | 3 +--
- 1 file changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/board/armltd/corstone1000/corstone1000.c b/board/armltd/corstone1000/corstone1000.c
-index ef74dc9032..d474fce1b2 100644
--- a/board/armltd/corstone1000/corstone1000.c
-+++ b/board/armltd/corstone1000/corstone1000.c
-@@ -30,8 +30,7 @@ DT_NON_COMPLIANT_PURGE_LIST(foo) = {
- 	{ .node_path = "/soc/mhu@1b010000" },
- 	{ .node_path = "/soc/mhu@1b020000" },
- 	{ .node_path = "/soc/mhu@1b030000" },
-	{ .node_path = "/soc/client" },
-	{ .node_path = "/soc/extsys@1A010310" },
-+	{ .node_path = "/soc/remoteproc@1a010310" },
- };
- 
- #define CORSTONE1000_KERNEL_PARTS 2
-- 
-2.34.1
-
@@ -1 +0,0 @@
-CONFIG_MTD_NAND_FSL_IFC=n
@@ -36,21 +36,13 @@ SRC_URI:append:corstone1000 = " ${@bb.utils.contains('MACHINE_FEATURES', \
                                                            'file://corstone1000_kernel_debug.cfg', \
                                                            '', \
                                                             d)}"
+
 SRC_URI:append:corstone1000 = " \
-    ${@bb.utils.contains( \
-              'MACHINE_FEATURES', \
-              'corstone1000-extsys', \
-              ' \
-		  file://extsys.cfg \
-		  file://0001-remoteproc-Add-Arm-remoteproc-driver.patch \
-		  file://0002-arm64-dts-Add-corstone1000-external-system-device-no.patch \
-		  file://0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch \
-              ', \
-              '', \
-              d \
-        ) \
-    } \
-"
+    file://extsys.cfg \
+    file://0001-remoteproc-Add-Arm-remoteproc-driver.patch \
+    file://0002-arm64-dts-Add-corstone1000-external-system-device-no.patch \
+    file://0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch \
+    "

 # Default kernel features not needed for corstone1000
 # otherwise the extra kernel modules will increase the rootfs size
@@ -77,9 +69,6 @@ SRC_URI:append:fvp-base = " \
 #
 COMPATIBLE_MACHINE:juno = "juno"
 FILESEXTRAPATHS:prepend:juno := "${ARMBSPFILESPATHS}"
-SRC_URI:append:juno = " \
-    file://no-fsl-ifc-nand.cfg \
-    "

 #
 # Musca B1/S2 can't run Linux
@@ -106,7 +95,6 @@ SRC_URI:append:n1sdp = " \
    file://enable-realtek-R8169.cfg \
    file://enable-usb_conn_gpio.cfg \
    file://usb_xhci_pci_renesas.cfg \
-    file://no-fsl-ifc-nand.cfg \
    "
 # Since we use the intree defconfig and the preempt-rt turns off some configs
 # do_kernel_configcheck will display warnings. So, lets disable it.
@@ -0,0 +1,46 @@
+#!/bin/sh
+
+# Source function library
+. /etc/init.d/functions
+
+NAME=tee-supplicant
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+DESC="OP-TEE Supplicant"
+
+DAEMON=@sbindir@/$NAME
+
+test -f $DAEMON || exit 0
+
+test -f @sysconfdir@/default/$NAME && . @sysconfdir@/default/$NAME
+test -f @sysconfdir@/default/rcS && . @sysconfdir@/default/rcS
+
+SSD_OPTIONS="--oknodo --quiet --exec $DAEMON -- -d $OPTARGS"
+
+set -e
+
+case $1 in
+    start)
+	    echo -n "Starting $DESC: "
+	    start-stop-daemon --start $SSD_OPTIONS
+        echo "${DAEMON##*/}."
+        ;;
+    stop)
+	    echo -n "Stopping $DESC: "
+	    start-stop-daemon --stop $SSD_OPTIONS
+        echo "${DAEMON##*/}."
+        ;;
+    restart|force-reload)
+	    $0 stop
+	    sleep 1
+	    $0 start
+        ;;
+    status)
+        status ${DAEMON} || exit $?
+        ;;
+    *)
+        echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
+        exit 1
+        ;;
+esac
+
+exit 0
@@ -0,0 +1,10 @@
+[Unit]
+Description=TEE Supplicant on %i
+
+[Service]
+User=root
+EnvironmentFile=-@sysconfdir@/default/tee-supplicant
+ExecStart=@sbindir@/tee-supplicant $OPTARGS
+
+[Install]
+WantedBy=basic.target
@@ -0,0 +1,3 @@
+build
+meta-arm
+poky
@@ -0,0 +1,17 @@
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the "Software"), to deal 
+in the Software without restriction, including without limitation the rights 
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom the Software is 
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
+THE SOFTWARE.
@@ -0,0 +1,36 @@
+Guarded Control Stack prototype
+===============================
+
+To build:
+
+First, install Kas if you don't already have it:
+
+$ pip3 install --user kas
+
+Then use Kas to build an image:
+
+$ kas build --update gcs.yml
+
+To run the image inside an FVP:
+
+$ kas shell gcs.yml -c "../../scripts/runfvp --console"
+
+To run the tests automatically, Kas can be used:
+
+$ kas build --update meta-arm-gcs/gcs-test.yml
+
+Verification:
+
+On boot, the kernel should detect that the cores have GCS:
+
+  CPU features: detected: Guarded Control Stack (GCS)
+
+Binaries should be tagged with PAC/BTI/GCS:
+
+  $ readelf  -n /bin/bash | grep AArch
+  Properties: AArch64 feature: BTI, PAC, GCS
+
+Enabling GCS tunables shouldn't cause crashes:
+
+  $ GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1:glibc.cpu.aarch64_gcs_policy=2 ls /
+  bin  boot  dev	etc  home  lib	lost+found  media  mnt	proc  run  sbin  sys  tmp  usr	var
@@ -0,0 +1,15 @@
+# We have a conf and classes directory, add to BBPATH
+BBPATH .= ":${LAYERDIR}"
+
+# We have recipes-* directories, add to BBFILES
+BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
+            ${LAYERDIR}/recipes-*/*/*.bbappend"
+
+BBFILE_COLLECTIONS += "meta-arm-gcs"
+BBFILE_PATTERN_meta-arm-gcs = "^${LAYERDIR}/"
+BBFILE_PRIORITY_meta-arm-gcs = "5"
+
+LAYERDEPENDS_meta-arm-gcs = "core"
+LAYERSERIES_COMPAT_meta-arm-gcs = " scarthgap"
+
+addpylib ${LAYERDIR}/lib oeqa
@@ -0,0 +1,8 @@
+header:
+  version: 14
+  includes:
+    - meta-arm-gcs/gcs.yml
+
+local_conf_header:
+  autotestimage: |
+    TESTIMAGE_AUTO = "1"
@@ -0,0 +1,62 @@
+header:
+  version: 14
+
+distro: poky
+
+machine: fvp-base
+
+repos:
+  meta-arm:
+    layers:
+      meta-arm:
+      meta-arm-bsp:
+      meta-arm-toolchain:
+      meta-arm-gcs:
+
+  poky:
+    url: https://git.yoctoproject.org/git/poky-contrib
+    branch: ross/gcc14
+    layers:
+      meta:
+      meta-poky:
+
+local_conf_header:
+  setup: |
+    # We accept the FVP EULA
+    LICENSE_FLAGS_ACCEPTED += "Arm-FVP-EULA"
+    # Enable running an image inside a FVP
+    IMAGE_CLASSES += "fvpboot"
+    # Use the -dev patched kernel
+    PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-dev"
+    LINUXLIBCVERSION = "6.11"
+    # No root password for ease
+    EXTRA_IMAGE_FEATURES += "empty-root-password allow-empty-password allow-root-login"
+    # Install a toolchain
+    EXTRA_IMAGE_FEATURES += "tools-sdk"
+    # Install a pre-generated SSH key because key generation in a FVP is tiresome
+    CORE_IMAGE_EXTRA_INSTALL += "ssh-pregen-hostkeys"
+
+  fvp_options: |
+    # Set the instruction set tune to 8.0 to match binary distributions
+    DEFAULTTUNE = "armv8a-crc"
+
+    # Set the cores to v9.4 and turn on more features
+    FVP_CONFIG[cluster0.has_arm_v9-4] = "1"
+    FVP_CONFIG[cluster1.has_arm_v9-4] = "1"
+    FVP_CONFIG[cluster0.has_branch_target_exception] = "1"
+    FVP_CONFIG[cluster1.has_branch_target_exception] = "1"
+    FVP_CONFIG[cluster0.has_gcs] = "1"
+    FVP_CONFIG[cluster1.has_gcs] = "1"
+    FVP_CONFIG[cluster0.has_chkfeat] = "1"
+    FVP_CONFIG[cluster1.has_chkfeat] = "1"
+    FVP_CONFIG[cluster0.has_permission_indirection_s1] = "1"
+    FVP_CONFIG[cluster1.has_permission_indirection_s1] = "1"
+
+  testimage: |
+    IMAGE_CLASSES += "testimage"
+    TEST_SUITES = "ping ssh gcs"
+    IMAGE_FEATURES += "ssh-server-dropbear"
+    CORE_IMAGE_EXTRA_INSTALL += "ssh-pregen-hostkeys binutils kselftest gcs-test"
+
+target:
+  - core-image-full-cmdline
@@ -0,0 +1,83 @@
+#
+# SPDX-License-Identifier: MIT
+#
+
+import unittest
+
+from oeqa.runtime.case import OERuntimeTestCase
+from oeqa.runtime.decorator.package import OEHasPackage
+
+class GCSTests(OERuntimeTestCase):
+
+    def test_dmesg(self):
+        """
+        Verify that the kernel detected the GCS processor feature.
+
+        If this fails the FVP configuration or kernel is at fault.
+        """
+        status, output = self.target.run("dmesg | grep 'CPU features'")
+        self.assertEqual(status, 0, f"dmesg failed: {output}")
+
+        self.assertIn("CPU features: detected: Guarded Control Stack (GCS)", output)
+
+
+    @OEHasPackage(['binutils'])
+    def test_elf_tags(self):
+        """
+        Verify that ELF binaries have the GCS feature enabled.
+        
+        If this fails the toolchain doesn't have GCS enabled, or the compilation
+        flags don't enable GCS.
+        """
+        status, output = self.target.run("readelf -n /bin/bash | grep 'AArch64 feature'")
+        self.assertEqual(status, 0, f"readelf failed: {output}")
+
+        self.assertIn("Properties: AArch64 feature: BTI, PAC, GCS", output)
+
+
+    def test_execution(self):
+        """
+        Verify that enabling GCS with the glibc tunables doesn't cause a crash.
+
+        This is an incredibly low bar, but if this fails then the GCS patches
+        are at fault.
+        """
+        cmd = "GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1:glibc.cpu.aarch64_gcs_policy=2 ls -d /u*"
+        status, output = self.target.run(cmd)
+        self.assertEqual(status, 0, f"ls failed: {output}")
+        self.assertEqual(output, "/usr")
+
+    def test_chkfeat(self):
+        """
+        Verify that CHKFEAT reports GCS as enabled when running with the tunables.
+
+        If this fails then GCS is not being properly enabled at runtime glibc. The kernel
+        and glibc patches may be out of sync.
+        """
+        cmd = "GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1:glibc.cpu.aarch64_gcs_policy=2 gcs-test"
+        status, output = self.target.run(cmd)
+        self.assertEqual(status, 0, f"gcs-test failed: {output}")
+
+        # gcs-test should return 1 if GCS is not enabled via the tunables
+        cmd = "gcs-test"
+        status, output = self.target.run(cmd)
+        self.assertEqual(status, 1, f"gcs-test failed: {output}")
+
+    @OEHasPackage(['kselftest'])
+    @unittest.expectedFailure
+    def test_kselftest(self):
+        """
+        Run the GCS tests in the kselftest.
+        """
+        cmd = """
+        cd /usr/libexec/kselftest; \
+        ./run_kselftest.sh $(./run_kselftest.sh -l | awk -e '/arm64.*gcs/ { print "-t " $1 }') \
+        """
+        status, output = self.target.run(cmd)
+
+        # kselftest normally returns 0 even if tests fail, so a failure here is serious
+        self.assertEqual(status, 0, f"kselftest failed: {output}")
+
+        # Identify any test failure lines, and assert that the list is empty
+        fails = [l for l in output.splitlines() if "not ok " in l]
+        self.assertFalse(fails)
@@ -0,0 +1 @@
+EXTRA_OEMAKE:append:fvp-base = " CTX_INCLUDE_AARCH32_REGS=0"
@@ -0,0 +1,3 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+
+SRC_URI += "file://gcs.patch"
@@ -0,0 +1,3 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+
+SRC_URI += "file://gcs.patch"
@@ -0,0 +1,973 @@
+From afe69c2e274db719e1835ee112150012271b62b7 Mon Sep 17 00:00:00 2001
+From: Srinath Parvathaneni <srinath.parvathaneni@arm.com>
+Date: Tue, 30 Jan 2024 08:59:53 +0000
+Subject: [PATCH] aarch64: Add support for GCS in AArch64 linker.
+
+This patch adds support for GCS in AArch64 linker.
+
+This patch implements the following:
+1) Defines GNU_PROPERTY_AARCH64_FEATURE_1_GCS bit for GCS in
+GNU_PROPERTY_AARCH64_FEATURE_1_AND macro.
+
+2) Adds readelf support to read and print the GNU properties
+in AArch64.
+
+Displaying notes found in: .note.gnu.property
+[      ]+Owner[        ]+Data size[    ]+Description
+  GNU                  0x00000010      NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+
+3) Adds support for -z experimental-gcs linker option and document
+all the values allowed with option (-z experimental-gcs[=always|never|implicit]).
+-z experimental-gcs is equivalent to -z experimental-gcs=always and
+when option is not passed in the command line, it defaults to implicit.
+
+4) Adds support for -z experimental-gcs-report linker option and document
+all the values allowed with this option (-z experimental-gcs-report[=none|warning|error]).
+-z experimental-gcs-report is equivalent to -z experimental-gcs-report=none
+and when option is not passed in the command line, it defaults to none.
+
+The ABI changes adding GNU_PROPERTY_AARCH64_FEATURE_1_GCS to the
+GNU property GNU_PROPERTY_AARCH64_FEATURE_1_AND is merged into main and
+can be found below.
+https://github.com/ARM-software/abi-aa/blob/main/sysvabi64/sysvabi64.rst
+
+Upstream-Status: Pending [https://sourceware.org/git/?p=binutils-gdb.git;a=shortlog;h=refs/heads/users/ARM/gcs-binutils-gdb-master]
+Signed-off-by: Ross Burton <ross.burton@arm.com>
+---
+ bfd/elfnn-aarch64.c                         | 87 +++++++++++++++++----
+ bfd/elfxx-aarch64.c                         | 37 ++++++++-
+ bfd/elfxx-aarch64.h                         | 36 +++++++--
+ binutils/readelf.c                          |  4 +
+ include/elf/common.h                        |  1 +
+ ld/emultempl/aarch64elf.em                  | 45 ++++++++++-
+ ld/testsuite/ld-aarch64/aarch64-elf.exp     | 23 ++++++
+ ld/testsuite/ld-aarch64/property-bti-pac1.d |  2 +-
+ ld/testsuite/ld-aarch64/property-bti-pac1.s | 14 ++++
+ ld/testsuite/ld-aarch64/property-gcs.s      | 25 ++++++
+ ld/testsuite/ld-aarch64/property-gcs1.d     |  6 ++
+ ld/testsuite/ld-aarch64/property-gcs10.d    |  6 ++
+ ld/testsuite/ld-aarch64/property-gcs11.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs12.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs13.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs14.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs15.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs16.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs17.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs18.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs19.d    |  6 ++
+ ld/testsuite/ld-aarch64/property-gcs2.d     | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs2.s     | 33 ++++++++
+ ld/testsuite/ld-aarch64/property-gcs20.d    |  6 ++
+ ld/testsuite/ld-aarch64/property-gcs21.d    |  6 ++
+ ld/testsuite/ld-aarch64/property-gcs22.d    | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs3.d     | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs4.d     | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs5.d     | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs6.d     | 12 +++
+ ld/testsuite/ld-aarch64/property-gcs7.d     |  6 ++
+ ld/testsuite/ld-aarch64/property-gcs8.d     | 11 +++
+ ld/testsuite/ld-aarch64/property-gcs9.d     | 12 +++
+ 33 files changed, 495 insertions(+), 26 deletions(-)
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs.s
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs1.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs10.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs11.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs12.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs13.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs14.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs15.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs16.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs17.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs18.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs19.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs2.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs2.s
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs20.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs21.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs22.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs3.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs4.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs5.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs6.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs7.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs8.d
+ create mode 100644 ld/testsuite/ld-aarch64/property-gcs9.d
+
+diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c
+index 109517db4aa..428f2c3507d 100644
+--- a/bfd/elfnn-aarch64.c
+++ b/bfd/elfnn-aarch64.c
+@@ -2546,6 +2546,12 @@ struct elf_aarch64_obj_tdata
+      GNU_PROPERTY_AARCH64_FEATURE_1_BTI.  */
+   int no_bti_warn;
+ 
+  /* Mark ouput with GCS based on -z experimental-gcs.  */
+  aarch64_gcs_type gcs_type;
+  /* Report linker warning/error for -z experimental-gcs-report based on
+     -z experimental-gcs.  */
+  aarch64_gcs_report gcs_report;
+
+   /* PLT type based on security.  */
+   aarch64_plt_type plt_type;
+ };
+@@ -5011,7 +5017,7 @@ bfd_elfNN_aarch64_set_options (struct bfd *output_bfd,
+ 			       int fix_erratum_835769,
+ 			       erratum_84319_opts fix_erratum_843419,
+ 			       int no_apply_dynamic_relocs,
+-			       aarch64_bti_pac_info bp_info)
+			       aarch64_gnu_prop_info bp_info)
+ {
+   struct elf_aarch64_link_hash_table *globals;
+ 
+@@ -5039,6 +5045,24 @@ bfd_elfNN_aarch64_set_options (struct bfd *output_bfd,
+     default:
+       break;
+     }
+
+  switch (bp_info.gcs_type)
+    {
+    case GCS_ALWAYS:
+      elf_aarch64_tdata (output_bfd)->gnu_and_prop
+	|= GNU_PROPERTY_AARCH64_FEATURE_1_GCS;
+      break;
+    case GCS_NEVER:
+      elf_aarch64_tdata (output_bfd)->gnu_and_prop
+	&= ~GNU_PROPERTY_AARCH64_FEATURE_1_GCS;
+      break;
+
+    default:
+      break;
+    }
+
+  elf_aarch64_tdata (output_bfd)->gcs_type = bp_info.gcs_type;
+  elf_aarch64_tdata (output_bfd)->gcs_report = bp_info.gcs_report;
+   elf_aarch64_tdata (output_bfd)->plt_type = bp_info.plt_type;
+   setup_plt_values (link_info, bp_info.plt_type);
+ }
+@@ -10196,7 +10220,12 @@ static bfd *
+ elfNN_aarch64_link_setup_gnu_properties (struct bfd_link_info *info)
+ {
+   uint32_t prop = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop;
+-  bfd *pbfd = _bfd_aarch64_elf_link_setup_gnu_properties (info, &prop);
+  aarch64_gcs_report gcs_report
+    = elf_aarch64_tdata (info->output_bfd)->gcs_report;
+  aarch64_gcs_report gcs_type
+    = elf_aarch64_tdata (info->output_bfd)->gcs_type;
+  bfd *pbfd = _bfd_aarch64_elf_link_setup_gnu_properties (info, &prop,
+							  gcs_report, gcs_type);
+   elf_aarch64_tdata (info->output_bfd)->gnu_and_prop = prop;
+   elf_aarch64_tdata (info->output_bfd)->plt_type
+     |= (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) ? PLT_BTI : 0;
+@@ -10215,30 +10244,54 @@ elfNN_aarch64_merge_gnu_properties (struct bfd_link_info *info,
+ {
+   uint32_t prop
+     = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop;
+  aarch64_gcs_report gcs_report
+    = elf_aarch64_tdata (info->output_bfd)->gcs_report;
+  aarch64_gcs_type gcs_type
+    = elf_aarch64_tdata (info->output_bfd)->gcs_type;
+ 
+-  /* If output has been marked with BTI using command line argument, give out
+-     warning if necessary.  */
+   /* Properties are merged per type, hence only check for warnings when merging
+      GNU_PROPERTY_AARCH64_FEATURE_1_AND.  */
+-  if (((aprop && aprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND)
+  if ((aprop && aprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND)
+ 	|| (bprop && bprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND))
+-      && (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)
+-      && (!elf_aarch64_tdata (info->output_bfd)->no_bti_warn))
+     {
+-      if ((aprop && !(aprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI))
+-	   || !aprop)
+      /* If output has been marked with BTI using command line argument, give
+	 out warning if necessary.  */
+      if ((prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)
+	  && (!elf_aarch64_tdata (info->output_bfd)->no_bti_warn))
+ 	{
+-	  _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when "
+-				"all inputs do not have BTI in NOTE section."),
+-			      abfd);
+	  if ((aprop && !(aprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI))
+	      || !aprop)
+	    {
+	      _bfd_error_handler (_("%pB: warning: BTI turned on by -z "
+				  "force-bti when all inputs do not have BTI "
+				  "in NOTE section."), abfd);
+	    }
+	  if ((bprop && !(bprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI))
+	      || !bprop)
+	    {
+	      _bfd_error_handler (_("%pB: warning: BTI turned on by -z "
+				  "force-bti when all inputs do not have BTI "
+				  "in NOTE section."), bbfd);
+	    }
+ 	}
+-      if ((bprop && !(bprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI))
+-	   || !bprop)
+
+      /* If output has been marked with GCS using -z experimental-gcs and input
+	 is missing GCS marking throw warning/error on
+	 -z experimental-gcs-report=warning/error.  */
+      if ((prop & GNU_PROPERTY_AARCH64_FEATURE_1_GCS) && gcs_report != GCS_NONE)
+ 	{
+-	  _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when "
+-				"all inputs do not have BTI in NOTE section."),
+-			      bbfd);
+	  if ((aprop && !(aprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_GCS))
+	      || !aprop)
+	    _bfd_aarch64_elf_check_gcs_report (gcs_report, abfd);
+	  if ((bprop && !(bprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_GCS))
+	      || !bprop)
+	    _bfd_aarch64_elf_check_gcs_report (gcs_report, bbfd);
+ 	}
+
+      if (gcs_type == GCS_NEVER && aprop != NULL)
+	aprop->u.number &= ~GNU_PROPERTY_AARCH64_FEATURE_1_GCS;
+      if (gcs_type == GCS_NEVER && bprop != NULL)
+	bprop->u.number &= ~GNU_PROPERTY_AARCH64_FEATURE_1_GCS;
+     }
+ 
+   return  _bfd_aarch64_elf_merge_gnu_properties (info, abfd, aprop,
+diff --git a/bfd/elfxx-aarch64.c b/bfd/elfxx-aarch64.c
+index d1279adc2e4..dd64f2067ac 100644
+--- a/bfd/elfxx-aarch64.c
+++ b/bfd/elfxx-aarch64.c
+@@ -702,7 +702,9 @@ _bfd_aarch64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_ty
+    GPROP accordingly.  */
+ bfd *
+ _bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *info,
+-					    uint32_t *gprop)
+					    uint32_t *gprop,
+					    aarch64_gcs_report gcs_report,
+					    aarch64_gcs_type gcs_type)
+ {
+   asection *sec;
+   bfd *pbfd;
+@@ -738,6 +740,11 @@ _bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *info,
+ 	    _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti "
+ 				  "when all inputs do not have BTI in NOTE "
+ 				  "section."), ebfd);
+
+      if ((gnu_prop & GNU_PROPERTY_AARCH64_FEATURE_1_GCS)
+	  && !(prop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_GCS))
+	_bfd_aarch64_elf_check_gcs_report (gcs_report, ebfd);
+
+       prop->u.number |= gnu_prop;
+       prop->pr_kind = property_number;
+ 
+@@ -765,6 +772,14 @@ _bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *info,
+ 	  elf_section_type (sec) = SHT_NOTE;
+ 	}
+     }
+  else if (ebfd != NULL && gcs_type == GCS_NEVER)
+    {
+      prop = _bfd_elf_get_property (ebfd, GNU_PROPERTY_AARCH64_FEATURE_1_AND,
+				    4);
+      prop->u.number &= ~GNU_PROPERTY_AARCH64_FEATURE_1_GCS;
+      if (prop->u.number == 0)
+	prop->pr_kind = property_remove;
+    }
+ 
+   pbfd = _bfd_elf_link_setup_gnu_properties (info);
+ 
+@@ -785,7 +800,8 @@ _bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *info,
+ 	    {
+ 	      gnu_prop = (p->property.u.number
+ 			  & (GNU_PROPERTY_AARCH64_FEATURE_1_PAC
+-			      | GNU_PROPERTY_AARCH64_FEATURE_1_BTI));
+			      | GNU_PROPERTY_AARCH64_FEATURE_1_BTI
+			      | GNU_PROPERTY_AARCH64_FEATURE_1_GCS));
+ 	      break;
+ 	    }
+ 	  else if (GNU_PROPERTY_AARCH64_FEATURE_1_AND < p->property.pr_type)
+@@ -922,3 +938,20 @@ _bfd_aarch64_elf_link_fixup_gnu_properties
+ 	}
+     }
+ }
+
+/* Check AArch64 GCS report.  */
+void
+_bfd_aarch64_elf_check_gcs_report (aarch64_gcs_report gcs_report, bfd *ebfd)
+{
+  if (gcs_report == GCS_WARN)
+    _bfd_error_handler (_("%pB: warning: GCS turned on by -z experimental-gcs "
+			"on the output when all inputs do not have GCS in NOTE "
+			"section."), ebfd);
+  else if (gcs_report == GCS_ERROR)
+    {
+      _bfd_error_handler (_("%pB: error: GCS turned on by -z experimental-gcs "
+			  "on the output when all inputs do not have GCS in "
+			  "NOTE section."), ebfd);
+      _exit (EXIT_FAILURE);
+    }
+}
+diff --git a/bfd/elfxx-aarch64.h b/bfd/elfxx-aarch64.h
+index 6c084f75796..ca523d81df1 100644
+--- a/bfd/elfxx-aarch64.h
+++ b/bfd/elfxx-aarch64.h
+@@ -46,6 +46,27 @@ typedef enum
+   BTI_WARN	= 1,  /* BTI is enabled with -z force-bti.  */
+ } aarch64_enable_bti_type;
+ 
+/* To indicate whether GNU_PROPERTY_AARCH64_FEATURE_1_GCS bit is
+   enabled/disabled on the output when -z experimental-gcs linker
+   command line option is passed.  */
+typedef enum
+{
+  GCS_NEVER	= 0,  /* gcs is disabled on output.  */
+  GCS_IMPLICIT  = 1,  /* gcs is deduced from input object.  */
+  GCS_ALWAYS	= 2,  /* gsc is enabled on output.  */
+} aarch64_gcs_type;
+
+/* To indicate whether to generate linker warning/errors for
+   -z experimental-gcs-report when -z experimental-gcs=always is passed.  */
+typedef enum
+{
+  GCS_NONE	= 0,  /* Does not emit any warning/error messages.  */
+  GCS_WARN	= 1,  /* Emit warning when the input objects are missing gcs
+			 markings and output have gcs marking.  */
+  GCS_ERROR	= 2,  /* Emit error when the input objects are missing gcs
+			 markings and output have gcs marking.  */
+} aarch64_gcs_report;
+
+ /* A structure to encompass all information coming from BTI or PAC
+    related command line options.  This involves the "PLT_TYPE" to determine
+    which version of PLTs to pick and "BTI_TYPE" to determine if
+@@ -54,7 +75,9 @@ typedef struct
+ {
+   aarch64_plt_type plt_type;
+   aarch64_enable_bti_type bti_type;
+-} aarch64_bti_pac_info;
+  aarch64_gcs_type gcs_type;
+  aarch64_gcs_report gcs_report;
+} aarch64_gnu_prop_info;
+ 
+ /* An enum to define what kind of erratum fixes we should apply.  This gives the
+    user a bit more control over the sequences we generate.  */
+@@ -67,11 +90,11 @@ typedef enum
+ 
+ extern void bfd_elf64_aarch64_set_options
+   (bfd *, struct bfd_link_info *, int, int, int, int, erratum_84319_opts, int,
+-   aarch64_bti_pac_info);
+   aarch64_gnu_prop_info);
+ 
+ extern void bfd_elf32_aarch64_set_options
+   (bfd *, struct bfd_link_info *, int, int, int, int, erratum_84319_opts, int,
+-   aarch64_bti_pac_info);
+   aarch64_gnu_prop_info);
+ 
+ /* AArch64 stub generation support for ELF64.  Called from the linker.  */
+ extern int elf64_aarch64_setup_section_lists
+@@ -135,8 +158,9 @@ _bfd_aarch64_elf_write_core_note (bfd *, char *, int *, int, ...);
+ #define elf_backend_write_core_note	_bfd_aarch64_elf_write_core_note
+ 
+ extern bfd *
+-_bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *,
+-					    uint32_t *);
+_bfd_aarch64_elf_link_setup_gnu_properties (struct bfd_link_info *, uint32_t *,
+					    aarch64_gcs_report,
+					    aarch64_gcs_type);
+ 
+ extern enum elf_property_kind
+ _bfd_aarch64_elf_parse_gnu_properties (bfd *, unsigned int,
+@@ -146,6 +170,8 @@ extern bool
+ _bfd_aarch64_elf_merge_gnu_properties (struct bfd_link_info *, bfd *,
+ 				       elf_property *, elf_property *,
+ 				       uint32_t);
+extern void
+_bfd_aarch64_elf_check_gcs_report (aarch64_gcs_report, bfd *);
+ 
+ extern void
+ _bfd_aarch64_elf_link_fixup_gnu_properties (struct bfd_link_info *,
+diff --git a/binutils/readelf.c b/binutils/readelf.c
+index 5e4ad6ea6ad..794cbb77a9c 100644
+--- a/binutils/readelf.c
+++ b/binutils/readelf.c
+@@ -20636,6 +20636,10 @@ decode_aarch64_feature_1_and (unsigned int bitmask)
+ 	  printf ("PAC");
+ 	  break;
+ 
+	case GNU_PROPERTY_AARCH64_FEATURE_1_GCS:
+	  printf ("GCS");
+	  break;
+
+ 	default:
+ 	  printf (_("<unknown: %x>"), bit);
+ 	  break;
+diff --git a/include/elf/common.h b/include/elf/common.h
+index 6a66456cd22..289b8821b7d 100644
+--- a/include/elf/common.h
+++ b/include/elf/common.h
+@@ -1001,6 +1001,7 @@
+ 
+ #define GNU_PROPERTY_AARCH64_FEATURE_1_BTI	(1U << 0)
+ #define GNU_PROPERTY_AARCH64_FEATURE_1_PAC	(1U << 1)
+#define GNU_PROPERTY_AARCH64_FEATURE_1_GCS	(1U << 2)
+ 
+ /* Values used in GNU .note.ABI-tag notes (NT_GNU_ABI_TAG).  */
+ #define GNU_ABI_TAG_LINUX	0
+diff --git a/ld/emultempl/aarch64elf.em b/ld/emultempl/aarch64elf.em
+index b647909ae63..fb331e06553 100644
+--- a/ld/emultempl/aarch64elf.em
+++ b/ld/emultempl/aarch64elf.em
+@@ -36,6 +36,12 @@ static erratum_84319_opts fix_erratum_843419 = ERRAT_NONE;
+ static int no_apply_dynamic_relocs = 0;
+ static aarch64_plt_type plt_type = PLT_NORMAL;
+ static aarch64_enable_bti_type bti_type = BTI_NONE;
+static aarch64_gcs_type gcs_type = GCS_IMPLICIT;
+static aarch64_gcs_report gcs_report = GCS_NONE;
+static const char * egr = "experimental-gcs-report";
+static const char * eg = "experimental-gcs";
+#define EGR_LEN strlen (egr)
+#define EG_LEN strlen (eg)
+ 
+ static void
+ gld${EMULATION_NAME}_before_parse (void)
+@@ -321,9 +327,11 @@ aarch64_elf_create_output_section_statements (void)
+       return;
+     }
+ 
+-  aarch64_bti_pac_info bp_info;
+  aarch64_gnu_prop_info bp_info;
+   bp_info.plt_type = plt_type;
+   bp_info.bti_type = bti_type;
+  bp_info.gcs_type = gcs_type;
+  bp_info.gcs_report = gcs_report;
+ 
+   bfd_elf${ELFSIZE}_aarch64_set_options (link_info.output_bfd, &link_info,
+ 				 no_enum_size_warning,
+@@ -408,6 +416,19 @@ PARSE_AND_LIST_OPTIONS='
+   fprintf (file, _("  --no-apply-dynamic-relocs    Do not apply link-time values for dynamic relocations\n"));
+   fprintf (file, _("  -z force-bti                  Turn on Branch Target Identification mechanism and generate PLTs with BTI. Generate warnings for missing BTI on inputs\n"));
+   fprintf (file, _("  -z pac-plt                    Protect PLTs with Pointer Authentication.\n"));
+  fprintf (file, _("\
+  -z experimental-gcs[=always|never|implicit]		Turn on Guarded Control Stack(gcs) mechanism on the output.\n\
+							implicit(default): deduce gcs from input objects.\n\
+							always: always marks the output with gcs.\n\
+							never: never marks the output with gcs.\n"));
+  fprintf (file, _("\
+  -z experimental-gcs-report[=none|warning|error]	Emit warning/error on mismatch of gcs marking between input objects and ouput.\n\
+							none (default): Does not emit any warning/error messages.\n\
+							warning: Emit warning when the input objects are missing gcs markings\n\
+								 and output have gcs marking.\n\
+							error: Emit error when the input objects are missing gcs markings\n\
+							       and output have gcs marking.\n"));
+
+ '
+ 
+ PARSE_AND_LIST_ARGS_CASE_Z_AARCH64='
+@@ -418,6 +439,28 @@ PARSE_AND_LIST_ARGS_CASE_Z_AARCH64='
+ 	}
+       else if (strcmp (optarg, "pac-plt") == 0)
+ 	plt_type |= PLT_PAC;
+     else if (strncmp (optarg, egr, EGR_LEN) == 0)
+	{
+	  if (strlen (optarg) == EGR_LEN || strcmp (optarg + EGR_LEN, "=none") == 0)
+	    gcs_report = GCS_NONE;
+	  else if (strcmp (optarg + EGR_LEN, "=warning") == 0)
+	    gcs_report = GCS_WARN;
+	  else if (strcmp (optarg + EGR_LEN, "=error") == 0)
+	    gcs_report = GCS_ERROR;
+	  else
+	    einfo (_("%P: error: unrecognized: `%s'\''\n"), optarg);
+	}
+     else if (strncmp (optarg, eg, EG_LEN) == 0)
+	{
+	  if (strlen (optarg) == EG_LEN || strcmp (optarg + EG_LEN, "=always") == 0)
+	    gcs_type = GCS_ALWAYS;
+	  else if (strcmp (optarg + EG_LEN, "=never") == 0)
+	    gcs_type = GCS_NEVER;
+	  else if (strcmp (optarg + EG_LEN, "=implicit") == 0)
+	    gcs_type = GCS_IMPLICIT;
+	  else
+	    einfo (_("%P: error: unrecognized: `%s'\''\n"), optarg);
+	}
+ '
+ PARSE_AND_LIST_ARGS_CASE_Z="$PARSE_AND_LIST_ARGS_CASE_Z $PARSE_AND_LIST_ARGS_CASE_Z_AARCH64"
+ 
+diff --git a/ld/testsuite/ld-aarch64/aarch64-elf.exp b/ld/testsuite/ld-aarch64/aarch64-elf.exp
+index 9ce61579e6c..31abc5a07d8 100644
+--- a/ld/testsuite/ld-aarch64/aarch64-elf.exp
+++ b/ld/testsuite/ld-aarch64/aarch64-elf.exp
+@@ -471,3 +471,26 @@ run_dump_test_lp64 "bti-far-3"
+ if { ![skip_sframe_tests] } {
+   run_dump_test "sframe-simple-1"
+ }
+
+run_dump_test "property-gcs1"
+run_dump_test "property-gcs2"
+run_dump_test "property-gcs3"
+run_dump_test "property-gcs4"
+run_dump_test "property-gcs5"
+run_dump_test "property-gcs6"
+run_dump_test "property-gcs7"
+run_dump_test "property-gcs8"
+run_dump_test "property-gcs9"
+run_dump_test "property-gcs10"
+run_dump_test "property-gcs11"
+run_dump_test "property-gcs12"
+run_dump_test "property-gcs13"
+run_dump_test "property-gcs14"
+run_dump_test "property-gcs15"
+run_dump_test "property-gcs16"
+run_dump_test "property-gcs17"
+run_dump_test "property-gcs18"
+run_dump_test "property-gcs19"
+run_dump_test "property-gcs20"
+run_dump_test "property-gcs21"
+run_dump_test "property-gcs22"
+diff --git a/ld/testsuite/ld-aarch64/property-bti-pac1.d b/ld/testsuite/ld-aarch64/property-bti-pac1.d
+index 59fa695165a..c28a0cbf850 100644
+--- a/ld/testsuite/ld-aarch64/property-bti-pac1.d
+++ b/ld/testsuite/ld-aarch64/property-bti-pac1.d
+@@ -8,4 +8,4 @@
+ Displaying notes found in: .note.gnu.property
+ [ 	]+Owner[ 	]+Data size[ 	]+Description
+   GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+-      Properties: AArch64 feature: BTI, PAC
+      Properties: AArch64 feature: BTI, PAC, GCS
+diff --git a/ld/testsuite/ld-aarch64/property-bti-pac1.s b/ld/testsuite/ld-aarch64/property-bti-pac1.s
+index 414c9277f1d..42156917d58 100644
+--- a/ld/testsuite/ld-aarch64/property-bti-pac1.s
+++ b/ld/testsuite/ld-aarch64/property-bti-pac1.s
+@@ -12,6 +12,20 @@ _start:
+ 	.long 5f - 2f		/* data length */
+ 	.long 5			/* note type */
+ 0:	.asciz "GNU"		/* vendor name */
+1:
+	.p2align 3
+2:	.long 0xc0000000	/* pr_type.  */
+	.long 4f - 3f		/* pr_datasz.  */
+3:
+	.long 0x4		/* GCS.  */
+4:
+	.p2align 3
+5:
+	.p2align 3
+	.long 1f - 0f		/* name length */
+	.long 5f - 2f		/* data length */
+	.long 5			/* note type */
+0:	.asciz "GNU"		/* vendor name */
+ 1:
+ 	.p2align 3
+ 2:	.long 0xc0000000	/* pr_type.  */
+diff --git a/ld/testsuite/ld-aarch64/property-gcs.s b/ld/testsuite/ld-aarch64/property-gcs.s
+new file mode 100644
+index 00000000000..bc7e66e8933
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs.s
+@@ -0,0 +1,25 @@
+	.text
+	.globl _start
+	.type _start,@function
+_start:
+	mov x1, #2
+.ifndef __mult__
+	bl foo
+.endif
+.ifdef __property_gcs__
+	.section ".note.gnu.property", "a"
+	.p2align 3
+	.long 1f - 0f		/* name length */
+	.long 5f - 2f		/* data length */
+	.long 5			/* note type */
+0:	.asciz "GNU"		/* vendor name */
+1:
+	.p2align 3
+2:	.long 0xc0000000	/* pr_type.  */
+	.long 4f - 3f		/* pr_datasz.  */
+3:
+	.long 0x4		/* GCS.  */
+4:
+	.p2align 3
+5:
+.endif
+diff --git a/ld/testsuite/ld-aarch64/property-gcs1.d b/ld/testsuite/ld-aarch64/property-gcs1.d
+new file mode 100644
+index 00000000000..c724ac56ca3
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs1.d
+@@ -0,0 +1,6 @@
+#name: GNU Property (input without gcs)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -shared
+#readelf: -n
+diff --git a/ld/testsuite/ld-aarch64/property-gcs10.d b/ld/testsuite/ld-aarch64/property-gcs10.d
+new file mode 100644
+index 00000000000..4b6deedc0c2
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs10.d
+@@ -0,0 +1,6 @@
+#name: GNU Property (input without gcs ouput forced with experimental-gcs=always experimental-gcs-report=error)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs=always -z experimental-gcs-report=error
+#error: .*property-gcs.*: error: GCS turned on by -z experimental-gcs on the output when all inputs do not have GCS in NOTE section.
+diff --git a/ld/testsuite/ld-aarch64/property-gcs11.d b/ld/testsuite/ld-aarch64/property-gcs11.d
+new file mode 100644
+index 00000000000..8abacf28eb1
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs11.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs output forced with experimental-gcs)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs12.d b/ld/testsuite/ld-aarch64/property-gcs12.d
+new file mode 100644
+index 00000000000..0fe246dfa3a
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs12.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs ouput forced with experimental-gcs=always)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs=always
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs13.d b/ld/testsuite/ld-aarch64/property-gcs13.d
+new file mode 100644
+index 00000000000..c6077aeaa5a
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs13.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs ouput forced with experimental-gcs experimental-gcs-report=none)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs -z experimental-gcs-report=none
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs14.d b/ld/testsuite/ld-aarch64/property-gcs14.d
+new file mode 100644
+index 00000000000..0f7490ef4a5
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs14.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs ouput forced with experimental-gcs experimental-gcs-report=warning)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs -z experimental-gcs-report=warning
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs15.d b/ld/testsuite/ld-aarch64/property-gcs15.d
+new file mode 100644
+index 00000000000..d1e723e0ea6
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs15.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs ouput forced with experimental-gcs experimental-gcs-report=error)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs -z experimental-gcs-report=error
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs16.d b/ld/testsuite/ld-aarch64/property-gcs16.d
+new file mode 100644
+index 00000000000..340577f1758
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs16.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs ouput forced with experimental-gcs=always experimental-gcs-report=none)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs=always -z experimental-gcs-report=none
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs17.d b/ld/testsuite/ld-aarch64/property-gcs17.d
+new file mode 100644
+index 00000000000..4ba9583ee92
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs17.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs ouput forced with experimental-gcs=always experimental-gcs-report=warning)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs=always -z experimental-gcs-report=warning
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs18.d b/ld/testsuite/ld-aarch64/property-gcs18.d
+new file mode 100644
+index 00000000000..f71c10e2523
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs18.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs ouput forced with experimental-gcs=always experimental-gcs-report=error)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs=always -z experimental-gcs-report=error
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs19.d b/ld/testsuite/ld-aarch64/property-gcs19.d
+new file mode 100644
+index 00000000000..468f96edcf1
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs19.d
+@@ -0,0 +1,6 @@
+#name: GNU Property (input without gcs output forced with experimental-gcs=never)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs=never
+#readelf: -n
+diff --git a/ld/testsuite/ld-aarch64/property-gcs2.d b/ld/testsuite/ld-aarch64/property-gcs2.d
+new file mode 100644
+index 00000000000..ed545a180b3
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs2.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -shared
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs2.s b/ld/testsuite/ld-aarch64/property-gcs2.s
+new file mode 100644
+index 00000000000..6db7d8396c8
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs2.s
+@@ -0,0 +1,33 @@
+	.text
+	.global	foo
+	.type	foo, %function
+foo:
+	sub	sp, sp, #16
+	mov	w0, 9
+	str	w0, [sp, 12]
+	ldr	w0, [sp, 12]
+	add	w0, w0, 4
+	str	w0, [sp, 12]
+	nop
+	add	sp, sp, 16
+	ret
+	.size	foo, .-foo
+	.global	bar
+	.type	bar, %function
+.ifdef __property_gcs__
+	.section ".note.gnu.property", "a"
+	.p2align 3
+	.long 1f - 0f		/* name length */
+	.long 5f - 2f		/* data length */
+	.long 5			/* note type */
+0:	.asciz "GNU"		/* vendor name */
+1:
+	.p2align 3
+2:	.long 0xc0000000	/* pr_type.  */
+	.long 4f - 3f		/* pr_datasz.  */
+3:
+	.long 0x4		/* GCS.  */
+4:
+	.p2align 3
+5:
+.endif
+diff --git a/ld/testsuite/ld-aarch64/property-gcs20.d b/ld/testsuite/ld-aarch64/property-gcs20.d
+new file mode 100644
+index 00000000000..2bdff88a27a
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs20.d
+@@ -0,0 +1,6 @@
+#name: GNU Property (input without gcs output forced with experimental-gcs=implicit)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs=implicit
+#readelf: -n
+diff --git a/ld/testsuite/ld-aarch64/property-gcs21.d b/ld/testsuite/ld-aarch64/property-gcs21.d
+new file mode 100644
+index 00000000000..b42b11d14ea
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs21.d
+@@ -0,0 +1,6 @@
+#name: GNU Property (input with gcs output forced with experimental-gcs=never)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs=never
+#readelf: -n
+diff --git a/ld/testsuite/ld-aarch64/property-gcs22.d b/ld/testsuite/ld-aarch64/property-gcs22.d
+new file mode 100644
+index 00000000000..431fc1ed35b
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs22.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input with gcs output forced with experimental-gcs=implicit)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0 -defsym __property_gcs__=1
+#ld: -z experimental-gcs=implicit
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs3.d b/ld/testsuite/ld-aarch64/property-gcs3.d
+new file mode 100644
+index 00000000000..68d50be0823
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs3.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input without gcs output forced with experimental-gcs)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs4.d b/ld/testsuite/ld-aarch64/property-gcs4.d
+new file mode 100644
+index 00000000000..cd5711e3da3
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs4.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input without gcs ouput forced with experimental-gcs=always)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs=always
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs5.d b/ld/testsuite/ld-aarch64/property-gcs5.d
+new file mode 100644
+index 00000000000..b7a751c0276
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs5.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input without gcs ouput forced with experimental-gcs experimental-gcs-report=none)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs -z experimental-gcs-report=none
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs6.d b/ld/testsuite/ld-aarch64/property-gcs6.d
+new file mode 100644
+index 00000000000..5abf8126d89
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs6.d
+@@ -0,0 +1,12 @@
+#name: GNU Property (input without gcs ouput forced with experimental-gcs experimental-gcs-report=warning)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs -z experimental-gcs-report=warning
+#readelf: -n
+#warning: .*property-gcs.*: warning: GCS turned on by -z experimental-gcs on the output when all inputs do not have GCS in NOTE section.
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs7.d b/ld/testsuite/ld-aarch64/property-gcs7.d
+new file mode 100644
+index 00000000000..4df5693a27b
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs7.d
+@@ -0,0 +1,6 @@
+#name: GNU Property (input without gcs ouput forced with experimental-gcs experimental-gcs-report=error)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs -z experimental-gcs-report=error
+#error: .*property-gcs.*: error: GCS turned on by -z experimental-gcs on the output when all inputs do not have GCS in NOTE section.
+diff --git a/ld/testsuite/ld-aarch64/property-gcs8.d b/ld/testsuite/ld-aarch64/property-gcs8.d
+new file mode 100644
+index 00000000000..463c3ad4197
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs8.d
+@@ -0,0 +1,11 @@
+#name: GNU Property (input without gcs ouput forced with experimental-gcs=always experimental-gcs-report=none)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs=always -z experimental-gcs-report=none
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+diff --git a/ld/testsuite/ld-aarch64/property-gcs9.d b/ld/testsuite/ld-aarch64/property-gcs9.d
+new file mode 100644
+index 00000000000..c3083675c8f
+--- /dev/null
+++ b/ld/testsuite/ld-aarch64/property-gcs9.d
+@@ -0,0 +1,12 @@
+#name: GNU Property (input without gcs ouput forced with experimental-gcs=always experimental-gcs-report=warning)
+#source: property-gcs.s
+#alltargets: [check_shared_lib_support] *linux*
+#as: -march=armv9.4-a+gcs -defsym __mult__=0
+#ld: -z experimental-gcs=always -z experimental-gcs-report=warning
+#readelf: -n
+#warning: .*property-gcs.*: warning: GCS turned on by -z experimental-gcs on the output when all inputs do not have GCS in NOTE section.
+
+Displaying notes found in: .note.gnu.property
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+  GNU                  0x00000010	NT_GNU_PROPERTY_TYPE_0
+      Properties: AArch64 feature: GCS
+-- 
+2.34.1
+
@@ -0,0 +1,3 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+
+SRC_URI += "file://gcs.patch"
@@ -0,0 +1,40 @@
+require recipes-devtools/gdb/gdb-common.inc
+
+inherit gettext pkgconfig
+
+PACKAGES =+ "gdbserver"
+FILES:gdbserver = "${bindir}/gdbserver"
+
+require recipes-devtools/gdb/gdb.inc
+
+FILESEXTRAPATHS:prepend := "${COREBASE}/meta/recipes-devtools/gdb/gdb:"
+
+# This patch doesn't apply to 15.1
+SRC_URI:remove = "file://0005-Change-order-of-CFLAGS.patch"
+SRC_URI[sha256sum] = "38254eacd4572134bca9c5a5aa4d4ca564cbbd30c369d881f733fb6b903354f2"
+
+inherit python3-dir
+
+EXTRA_OEMAKE:append:libc-musl = "\
+                                 gt_cv_func_gnugettext1_libc=yes \
+                                 gt_cv_func_gnugettext2_libc=yes \
+                                 gl_cv_func_working_strerror=yes \
+                                 gl_cv_func_strerror_0_works=yes \
+                                 gl_cv_func_gettimeofday_clobber=no \
+                                "
+
+do_configure:prepend() {
+	if [ "${@bb.utils.filter('PACKAGECONFIG', 'python', d)}" ]; then
+		cat > ${WORKDIR}/python << EOF
+#!/bin/sh
+case "\$2" in
+	--includes) echo "-I${STAGING_INCDIR}/${PYTHON_DIR}${PYTHON_ABI}/" ;;
+	--ldflags) echo "-Wl,-rpath-link,${STAGING_LIBDIR}/.. -Wl,-rpath,${libdir}/.. -lpthread -ldl -lutil -lm -lpython${PYTHON_BASEVERSION}${PYTHON_ABI}" ;;
+	--exec-prefix) echo "${exec_prefix}" ;;
+	*) exit 1 ;;
+esac
+exit 0
+EOF
+		chmod +x ${WORKDIR}/python
+	fi
+}
@@ -0,0 +1,3 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+
+SRC_URI += "file://gcs.patch"
@@ -0,0 +1,14 @@
+require ${COREBASE}/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
+
+FILESEXTRAPATHS:prepend = "${THISDIR}/../linux/files/:"
+
+KBRANCH = "v6.11/standard/base"
+# 6.11-rc3
+SRCREV = "7c626ce4bae1ac14f60076d00eafe71af30450ba"
+
+SRC_URI = "git://git.yoctoproject.org/linux-yocto-dev.git;branch=${KBRANCH};protocol=https"
+SRC_URI += "file://gcs.patch"
+
+LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46"
+
+S = "${WORKDIR}/git"
@@ -0,0 +1 @@
+CONFIG_UPROBE_EVENTS=n
@@ -0,0 +1,51 @@
+SUMMARY = "kselftest, the kernel test suite"
+SECTION = "kernel"
+LICENSE = "GPL-2.0-only"
+
+DEPENDS = "rsync-native alsa-lib libcap libcap-ng numactl popt libmnl"
+
+inherit kernelsrc kernel-arch
+
+PACKAGE_ARCH = "${MACHINE_ARCH}"
+
+B = "${WORKDIR}/build"
+
+do_compile[cleandirs] = "${B}"
+
+CC:remove:aarch64 = "-mbranch-protection=standard"
+SECURITY_CFLAGS = ""
+
+# Disable BPF and HID as they need clang for BPF compilation
+SKIP_TARGETS ?= "bpf hid"
+
+EXTRA_OEMAKE += "\
+    O=${B} \
+    V=1 \
+    ARCH=${ARCH} \
+    CROSS_COMPILE=${TARGET_PREFIX} \
+    CC="${CC}" \
+    AR="${AR}" \
+    LD="${LD}" \
+    KHDR_INCLUDES="-isystem ${STAGING_KERNEL_BUILDDIR}" \
+    SKIP_TARGETS="${SKIP_TARGETS}" \
+"
+
+# Force all tests to build successfully
+#EXTRA_OEMAKE += "FORCE_TARGETS=1"
+
+do_compile() {
+	oe_runmake -C ${S}/tools/testing/selftests
+}
+
+do_install() {
+	oe_runmake -C ${S}/tools/testing/selftests install INSTALL_PATH=${D}/${libexecdir}/kselftest
+	# install uses rsync -a
+	chown -R root:root ${D}/${libexecdir}/kselftest
+}
+
+RDEPENDS:${PN} += "bash python3-core python3 perl perl-module-io-handle"
+
+INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
+INSANE_SKIP:${PN} = "already-stripped buildpaths ldflags textrel"
+
+# TODO test with musl
@@ -0,0 +1,13 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+
+KBRANCH = "v6.11/standard/base"
+SRCREV_machine = "7c626ce4bae1ac14f60076d00eafe71af30450ba"
+SRCREV_meta = "66aec68f0ba1d15ba0e9c19f1ec0d2b4a75c5333"
+LINUX_VERSION = "6.11.0"
+
+SRC_URI += "file://gcs.patch file://disable_uprobe.cfg"
+
+# TMPDIR references in:
+#  /usr/src/debug/linux-yocto-dev/6.8.0+git/drivers/tty/vt/consolemap_deftbl.c
+#  /usr/src/debug/linux-yocto-dev/6.8.0+git/lib/oid_registry_data.c
+INSANE_SKIP:${PN}-src += "buildpaths"
@@ -0,0 +1,22 @@
+/* Copyright (C) 2024 Arm Ltd */
+/* SPDX-License-Identifier: MIT */
+
+.global gcs_enabled
+.type gcs_enabled,@function
+gcs_enabled:
+	mov x16, #0x1
+	hint 40
+	eor x0, x16, #0x1
+	ret
+
+.pushsection .note.gnu.property, "a"
+.balign 8
+.long 4
+.long 0x10
+.long 0x5
+.asciz "GNU"
+.long 0xc0000000
+.long 4
+.long 4
+.long 0
+.popsection
@@ -0,0 +1,9 @@
+// Copyright (C) 2024 Arm Ltd
+// SPDX-License-Identifier: MIT
+
+extern int gcs_enabled(void);
+
+int main(void)
+{
+	return gcs_enabled() ? 0 : 1;
+}
@@ -0,0 +1,18 @@
+SUMMARY = "test"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
+
+SRC_URI = "file://chkfeat.s file://gcs_enabled.c"
+
+S = "${WORKDIR}"
+
+LDFLAGS:append = " -z experimental-gcs=always"
+
+do_compile() {
+    ${CC} ${CFLAGS} ${LDFLAGS} ${WORKDIR}/gcs_enabled.c ${WORKDIR}/chkfeat.s -o gcs-test 
+}
+
+do_install() {
+    install -d ${D}${bindir}
+    install -m 0755 gcs-test ${D}${bindir}
+}
@@ -1,42 +0,0 @@
-from oeqa.runtime.case import OERuntimeTestCase
-
-class SystemReadyOpenSUSEUnattendedTest(OERuntimeTestCase):
-    def setUp(self):
-        super().setUp()
-        self.console = self.target.DEFAULT_CONSOLE
-
-    def test_opensuse_unattended(self):
-        # Turn on the FVP.
-        self.target.transition('on')
-
-        # Timeout value = elapsed time * 2; where elapsed time was collected
-        # from the elapsed time in the log.do_testimage for each function after
-        # the build is finished on the development machine.
-        self.target.expect(self.console,
-                           'Booting `Installation\'',
-                           timeout=(2 * 60))
-        bb.plain('Installation status: Loading the kernel, initrd and basic drivers...')
-
-        self.target.expect(self.console,
-                           'Starting hardware detection...',
-                           timeout=(40 * 60))
-        bb.plain('Installation status: Starting hardware detection...')
-
-        self.target.expect(self.console,
-                           'Loading Installation System',
-                           timeout=(60 * 60))
-        bb.plain('Installation status: Loading Installation System...')
-
-        self.target.expect(self.console,
-                           'Starting Installer',
-                           timeout=(40 * 60))
-        bb.plain('Installation status: Performing Installation...')
-
-        self.target.expect(self.console,
-                           'Finishing Configuration',
-                           timeout=(15 * 60 * 60))
-        bb.plain('Installation status: Finishing Configuration...')
-
-        # Waiting till the installation is finished.
-        self.target.expect(self.console, r'.*login: ', timeout=(6 * 60 * 60))
-        bb.plain('Installation status: openSUSE installation finished successfully.')
@@ -48,10 +48,10 @@ TEST_SUITES = "arm_systemready_ir_acs"
 PV = "2.0.0"
 PV_DATE = "23.03"
 FULL_PV = "v${PV_DATE}_${PV}"
-ARM_SYSTEMREADY_IR_ACS_BRANCH ?= "legacy_systemready"
-IMAGE_FILENAME = "ir-acs-live-image-generic-arm64-${PV}.wic"
+ARM_SYSTEMREADY_IR_ACS_BRANCH ?= "main"
+IMAGE_FILENAME = "ir-acs-live-image-generic-arm64.wic"
 SRC_URI = " \
-    https://github.com/ARM-software/arm-systemready/raw/${ARM_SYSTEMREADY_IR_ACS_BRANCH}/IR/prebuilt_images/${FULL_PV}/ir-acs-live-image-generic-arm64.wic.xz;name=acs-img;downloadfilename=${IMAGE_FILENAME}.xz \
+    https://github.com/ARM-software/arm-systemready/raw/${ARM_SYSTEMREADY_IR_ACS_BRANCH}/IR/prebuilt_images/${FULL_PV}/${IMAGE_FILENAME}.xz;name=acs-img \
    git://git.gitlab.arm.com/systemready/systemready-ir-template.git;protocol=https;nobranch=1;destsuffix=systemready-ir-template;name=sr-ir-template \
 "
 SRC_URI[acs-img.sha256sum] = "ea52f84dab44bde97de3e2d2224d883acaae35724dd8e2bdfb125de49040f9b3"
@@ -72,18 +72,3 @@ ISO_TYPE = "DVD"
 BUILD_NO = "491.1"
 SRC_URI = "https://download.opensuse.org/distribution/leap/${PV}/iso/openSUSE-Leap-${PV}-${ISO_TYPE}-aarch64-Build${BUILD_NO}-Media.iso;unpack=0;downloadfilename=${ISO_IMAGE_NAME}.iso"
 SRC_URI[sha256sum] = "456cc4f99b044429d8a89bd302c06e9e382d6ac4dc590139a7096ebb54f5357b"
-
-TEST_SUITES = "${@oe.utils.vartrue("DISTRO_UNATTENDED_INST_TESTS", "arm_systemready_opensuse_unattended", "", d)}"
-
-ISO_LABEL = "${@oe.utils.vartrue("DISTRO_UNATTENDED_INST_TESTS", "OEMDRV", "", d)}"
-BOOT_CATALOG = "${@oe.utils.vartrue("DISTRO_UNATTENDED_INST_TESTS", "boot.catalog", "", d)}"
-BOOT_IMAGE = "${@oe.utils.vartrue("DISTRO_UNATTENDED_INST_TESTS", "EFI/BOOT/bootaa64.efi", "", d)}"
-EFI_IMAGE = "${@oe.utils.vartrue("DISTRO_UNATTENDED_INST_TESTS", "boot/aarch64/efi", "", d)}"
-
-modifyiso() {
-    UNATTENDED_CONF_DIR="${THISDIR}/unattended-boot-conf/openSUSE"
-
-    #create installation configuration files, remove grub timeout, setup network
-    cp "${UNATTENDED_CONF_DIR}/autoinst.xml" ${EXTRACTED_ISO_TEMP_DIR}
-    sed -i 's/timeout=60/timeout=0/g' "${EXTRACTED_ISO_TEMP_DIR}/EFI/BOOT/grub.cfg"
-}
@@ -1,935 +0,0 @@
-<?xml version="1.0"?>
-<!DOCTYPE profile>
-<profile xmlns="http://www.suse.com/1.0/yast2ns" xmlns:config="http://www.suse.com/1.0/configns">
-  <bootloader t="map">
-    <global t="map">
-      <append>splash=silent preempt=full mitigations=auto quiet security=apparmor</append>
-      <cpu_mitigations>auto</cpu_mitigations>
-      <gfxmode>auto</gfxmode>
-      <hiddenmenu>false</hiddenmenu>
-      <os_prober>true</os_prober>
-      <secure_boot>true</secure_boot>
-      <terminal>gfxterm</terminal>
-      <timeout t="integer">8</timeout>
-      <update_nvram>true</update_nvram>
-    </global>
-    <loader_type>grub2-efi</loader_type>
-  </bootloader>
-  <firewall t="map">
-    <default_zone>public</default_zone>
-    <enable_firewall t="boolean">true</enable_firewall>
-    <log_denied_packets>off</log_denied_packets>
-    <start_firewall t="boolean">true</start_firewall>
-    <zones t="list">
-      <zone t="map">
-        <description>Unsolicited incoming network packets are rejected. Incoming packets that are related to outgoing network connections are accepted. Outgoing network connections are allowed.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">false</masquerade>
-        <name>block</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list"/>
-        <short>Block</short>
-        <target>%%REJECT%%</target>
-      </zone>
-      <zone t="map">
-        <description>For computers in your demilitarized zone that are publicly-accessible with limited access to your internal network. Only selected incoming connections are accepted.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">false</masquerade>
-        <name>dmz</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list">
-          <service>ssh</service>
-        </services>
-        <short>DMZ</short>
-        <target>default</target>
-      </zone>
-      <zone t="map">
-        <description>All network connections are accepted.</description>
-        <interfaces t="list">
-          <interface>docker0</interface>
-        </interfaces>
-        <masquerade t="boolean">false</masquerade>
-        <name>docker</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list"/>
-        <short>docker</short>
-        <target>ACCEPT</target>
-      </zone>
-      <zone t="map">
-        <description>Unsolicited incoming network packets are dropped. Incoming packets that are related to outgoing network connections are accepted. Outgoing network connections are allowed.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">false</masquerade>
-        <name>drop</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list"/>
-        <short>Drop</short>
-        <target>DROP</target>
-      </zone>
-      <zone t="map">
-        <description>For use on external networks. You do not trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">true</masquerade>
-        <name>external</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list">
-          <service>ssh</service>
-        </services>
-        <short>External</short>
-        <target>default</target>
-      </zone>
-      <zone t="map">
-        <description>For use in home areas. You mostly trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">false</masquerade>
-        <name>home</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list">
-          <service>dhcpv6-client</service>
-          <service>mdns</service>
-          <service>samba-client</service>
-          <service>ssh</service>
-        </services>
-        <short>Home</short>
-        <target>default</target>
-      </zone>
-      <zone t="map">
-        <description>For use on internal networks. You mostly trust the other computers on the networks to not harm your computer. Only selected incoming connections are accepted.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">false</masquerade>
-        <name>internal</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list">
-          <service>dhcpv6-client</service>
-          <service>mdns</service>
-          <service>samba-client</service>
-          <service>ssh</service>
-        </services>
-        <short>Internal</short>
-        <target>default</target>
-      </zone>
-      <zone t="map">
-        <description>For use in public areas. You do not trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.</description>
-        <interfaces t="list">
-          <interface>eth0</interface>
-        </interfaces>
-        <masquerade t="boolean">false</masquerade>
-        <name>public</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list">
-          <service>dhcpv6-client</service>
-          <service>ssh</service>
-        </services>
-        <short>Public</short>
-        <target>default</target>
-      </zone>
-      <zone t="map">
-        <description>All network connections are accepted.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">false</masquerade>
-        <name>trusted</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list"/>
-        <short>Trusted</short>
-        <target>ACCEPT</target>
-      </zone>
-      <zone t="map">
-        <description>For use in work areas. You mostly trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.</description>
-        <interfaces t="list"/>
-        <masquerade t="boolean">false</masquerade>
-        <name>work</name>
-        <ports t="list"/>
-        <protocols t="list"/>
-        <services t="list">
-          <service>dhcpv6-client</service>
-          <service>ssh</service>
-        </services>
-        <short>Work</short>
-        <target>default</target>
-      </zone>
-    </zones>
-  </firewall>
-  <general t="map">
-    <mode t="map">
-      <confirm t="boolean">false</confirm>
-    </mode>
-  </general>
-  <groups t="list">
-    <group t="map">
-      <gid>100</gid>
-      <groupname>users</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>499</gid>
-      <groupname>messagebus</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>1</gid>
-      <groupname>bin</groupname>
-      <userlist>daemon</userlist>
-    </group>
-    <group t="map">
-      <gid>488</gid>
-      <groupname>input</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>495</gid>
-      <groupname>kmem</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>493</gid>
-      <groupname>utmp</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>62</gid>
-      <groupname>man</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>477</gid>
-      <groupname>polkitd</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>479</gid>
-      <groupname>systemd-timesync</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>2</gid>
-      <groupname>daemon</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>480</gid>
-      <groupname>systemd-network</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>71</gid>
-      <groupname>ntadmin</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>490</gid>
-      <groupname>dialout</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>59</gid>
-      <groupname>maildrop</groupname>
-      <userlist>postfix</userlist>
-    </group>
-    <group t="map">
-      <gid>478</gid>
-      <groupname>nscd</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>51</gid>
-      <groupname>postfix</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>485</gid>
-      <groupname>tape</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>487</gid>
-      <groupname>render</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>476</gid>
-      <groupname>sshd</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>491</gid>
-      <groupname>cdrom</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>486</gid>
-      <groupname>sgx</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>0</gid>
-      <groupname>root</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>489</gid>
-      <groupname>disk</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>15</gid>
-      <groupname>shadow</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>484</gid>
-      <groupname>video</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>496</gid>
-      <groupname>wheel</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>483</gid>
-      <groupname>audit</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>498</gid>
-      <groupname>mail</groupname>
-      <userlist>postfix</userlist>
-    </group>
-    <group t="map">
-      <gid>5</gid>
-      <groupname>tty</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>65533</gid>
-      <groupname>nogroup</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>65534</gid>
-      <groupname>nobody</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>497</gid>
-      <groupname>lp</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>482</gid>
-      <groupname>chrony</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>492</gid>
-      <groupname>audio</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>494</gid>
-      <groupname>lock</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>36</gid>
-      <groupname>kvm</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>42</gid>
-      <groupname>trusted</groupname>
-      <userlist/>
-    </group>
-    <group t="map">
-      <gid>481</gid>
-      <groupname>systemd-journal</groupname>
-      <userlist/>
-    </group>
-  </groups>
-  <host t="map">
-    <hosts t="list">
-      <hosts_entry t="map">
-        <host_address>127.0.0.1</host_address>
-        <names t="list">
-          <name>localhost</name>
-        </names>
-      </hosts_entry>
-      <hosts_entry t="map">
-        <host_address>::1</host_address>
-        <names t="list">
-          <name>localhost ipv6-localhost ipv6-loopback</name>
-        </names>
-      </hosts_entry>
-      <hosts_entry t="map">
-        <host_address>fe00::0</host_address>
-        <names t="list">
-          <name>ipv6-localnet</name>
-        </names>
-      </hosts_entry>
-      <hosts_entry t="map">
-        <host_address>ff00::0</host_address>
-        <names t="list">
-          <name>ipv6-mcastprefix</name>
-        </names>
-      </hosts_entry>
-      <hosts_entry t="map">
-        <host_address>ff02::1</host_address>
-        <names t="list">
-          <name>ipv6-allnodes</name>
-        </names>
-      </hosts_entry>
-      <hosts_entry t="map">
-        <host_address>ff02::2</host_address>
-        <names t="list">
-          <name>ipv6-allrouters</name>
-        </names>
-      </hosts_entry>
-      <hosts_entry t="map">
-        <host_address>ff02::3</host_address>
-        <names t="list">
-          <name>ipv6-allhosts</name>
-        </names>
-      </hosts_entry>
-    </hosts>
-  </host>
-  <language t="map">
-    <language>en_GB</language>
-    <languages>en_GB</languages>
-  </language>
-  <networking t="map">
-    <dhcp_options t="map">
-      <dhclient_client_id/>
-      <dhclient_hostname_option>AUTO</dhclient_hostname_option>
-    </dhcp_options>
-    <dns t="map">
-      <dhcp_hostname t="boolean">true</dhcp_hostname>
-      <hostname>localhost</hostname>
-      <resolv_conf_policy>auto</resolv_conf_policy>
-    </dns>
-    <interfaces t="list">
-      <interface t="map">
-        <bootproto>dhcp</bootproto>
-        <name>eth0</name>
-        <startmode>auto</startmode>
-        <zone>public</zone>
-      </interface>
-    </interfaces>
-    <ipv6 t="boolean">true</ipv6>
-    <keep_install_network t="boolean">true</keep_install_network>
-    <managed t="boolean">false</managed>
-    <routing t="map">
-      <ipv4_forward t="boolean">false</ipv4_forward>
-      <ipv6_forward t="boolean">false</ipv6_forward>
-    </routing>
-  </networking>
-  <ntp-client t="map">
-    <ntp_policy>auto</ntp_policy>
-    <ntp_servers t="list"/>
-    <ntp_sync>systemd</ntp_sync>
-  </ntp-client>
-  <partitioning t="list">
-    <drive t="map">
-      <device>/dev/vda</device>
-      <disklabel>gpt</disklabel>
-      <enable_snapshots t="boolean">false</enable_snapshots>
-      <partitions t="list">
-        <partition t="map">
-          <create t="boolean">true</create>
-          <filesystem t="symbol">vfat</filesystem>
-          <format t="boolean">true</format>
-          <fstopt>utf8</fstopt>
-          <mount>/boot/efi</mount>
-          <mountby t="symbol">uuid</mountby>
-          <partition_id t="integer">259</partition_id>
-          <partition_nr t="integer">1</partition_nr>
-          <resize t="boolean">false</resize>
-          <size>134217728</size>
-        </partition>
-        <partition t="map">
-          <create t="boolean">true</create>
-          <create_subvolumes t="boolean">true</create_subvolumes>
-          <filesystem t="symbol">btrfs</filesystem>
-          <format t="boolean">true</format>
-          <mount>/</mount>
-          <mountby t="symbol">uuid</mountby>
-          <partition_id t="integer">131</partition_id>
-          <partition_nr t="integer">2</partition_nr>
-          <quotas t="boolean">false</quotas>
-          <resize t="boolean">false</resize>
-          <size>6307167744</size>
-          <subvolumes t="list">
-            <subvolume t="map">
-              <copy_on_write t="boolean">false</copy_on_write>
-              <path>var</path>
-            </subvolume>
-            <subvolume t="map">
-              <copy_on_write t="boolean">true</copy_on_write>
-              <path>usr/local</path>
-            </subvolume>
-            <subvolume t="map">
-              <copy_on_write t="boolean">true</copy_on_write>
-              <path>tmp</path>
-            </subvolume>
-            <subvolume t="map">
-              <copy_on_write t="boolean">true</copy_on_write>
-              <path>srv</path>
-            </subvolume>
-            <subvolume t="map">
-              <copy_on_write t="boolean">true</copy_on_write>
-              <path>root</path>
-            </subvolume>
-            <subvolume t="map">
-              <copy_on_write t="boolean">true</copy_on_write>
-              <path>opt</path>
-            </subvolume>
-            <subvolume t="map">
-              <copy_on_write t="boolean">true</copy_on_write>
-              <path>home</path>
-            </subvolume>
-            <subvolume t="map">
-              <copy_on_write t="boolean">true</copy_on_write>
-              <path>boot/grub2/arm64-efi</path>
-            </subvolume>
-          </subvolumes>
-          <subvolumes_prefix>@</subvolumes_prefix>
-        </partition>
-      </partitions>
-      <type t="symbol">CT_DISK</type>
-      <use>all</use>
-    </drive>
-  </partitioning>
-  <proxy t="map">
-    <enabled t="boolean">false</enabled>
-  </proxy>
-  <services-manager t="map">
-    <default_target>multi-user</default_target>
-    <services t="map">
-      <enable t="list">
-        <service>YaST2-Firstboot</service>
-        <service>YaST2-Second-Stage</service>
-        <service>apparmor</service>
-        <service>auditd</service>
-        <service>klog</service>
-        <service>chronyd</service>
-        <service>cron</service>
-        <service>cups</service>
-        <service>firewalld</service>
-        <service>wickedd-auto4</service>
-        <service>wickedd-dhcp4</service>
-        <service>wickedd-dhcp6</service>
-        <service>wickedd-nanny</service>
-        <service>irqbalance</service>
-        <service>issue-generator</service>
-        <service>kbdsettings</service>
-        <service>wicked</service>
-        <service>nscd</service>
-        <service>postfix</service>
-        <service>purge-kernels</service>
-        <service>rsyslog</service>
-        <service>smartd</service>
-        <service>sshd</service>
-        <service>systemd-pstore</service>
-        <service>systemd-remount-fs</service>
-      </enable>
-    </services>
-  </services-manager>
-  <software t="map">
-    <install_recommended t="boolean">true</install_recommended>
-    <instsource/>
-    <packages t="list">
-      <package>wicked</package>
-      <package>shim</package>
-      <package>os-prober</package>
-      <package>openssh</package>
-      <package>openSUSE-release</package>
-      <package>mokutil</package>
-      <package>kexec-tools</package>
-      <package>grub2-arm64-efi</package>
-      <package>glibc</package>
-      <package>firewalld</package>
-      <package>e2fsprogs</package>
-      <package>dosfstools</package>
-      <package>chrony</package>
-      <package>btrfsprogs</package>
-      <package>autoyast2</package>
-    </packages>
-    <patterns t="list">
-      <pattern>apparmor</pattern>
-      <pattern>base</pattern>
-      <pattern>documentation</pattern>
-      <pattern>enhanced_base</pattern>
-      <pattern>minimal_base</pattern>
-      <pattern>sw_management</pattern>
-      <pattern>yast2_basis</pattern>
-    </patterns>
-    <products t="list">
-      <product>Leap</product>
-    </products>
-  </software>
-  <ssh_import t="map">
-    <copy_config t="boolean">false</copy_config>
-    <import t="boolean">false</import>
-  </ssh_import>
-  <user_defaults t="map">
-    <expire/>
-    <group>100</group>
-    <home>/home</home>
-    <inactive>-1</inactive>
-    <shell>/bin/bash</shell>
-    <umask>022</umask>
-  </user_defaults>
-  <users t="list">
-    <user t="map">
-      <authorized_keys t="list"/>
-      <encrypted t="boolean">true</encrypted>
-      <fullname>user</fullname>
-      <gid>100</gid>
-      <home>/home/user</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max>99999</max>
-        <min>0</min>
-        <warn>7</warn>
-      </password_settings>
-      <shell>/bin/bash</shell>
-      <uid>1000</uid>
-      <user_password>$6$WV8CB/c6j0zhAi5S$4euhbt4alH7WNfaatS9IJgPiiKDJ48d5Ru1zCZCA0N9GiyOPuefN2PAUWlyYeTgqAInpyvPh1frdp4fFVjvEn0</user_password>
-      <username>user</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>User for nscd</fullname>
-      <gid>478</gid>
-      <home>/run/nscd</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/sbin/nologin</shell>
-      <uid>478</uid>
-      <user_password>!</user_password>
-      <username>nscd</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>systemd Network Management</fullname>
-      <gid>480</gid>
-      <home>/</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>480</uid>
-      <user_password>!*</user_password>
-      <username>systemd-network</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>Daemon</fullname>
-      <gid>2</gid>
-      <home>/sbin</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>2</uid>
-      <user_password>!</user_password>
-      <username>daemon</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>systemd Time Synchronization</fullname>
-      <gid>479</gid>
-      <home>/</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>479</uid>
-      <user_password>!*</user_password>
-      <username>systemd-timesync</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>user for rpcbind</fullname>
-      <gid>65534</gid>
-      <home>/var/lib/empty</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/sbin/nologin</shell>
-      <uid>475</uid>
-      <user_password>!</user_password>
-      <username>rpc</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>SSH daemon</fullname>
-      <gid>476</gid>
-      <home>/var/lib/sshd</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>476</uid>
-      <user_password>!</user_password>
-      <username>sshd</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>Postfix Daemon</fullname>
-      <gid>51</gid>
-      <home>/var/spool/postfix</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>51</uid>
-      <user_password>!</user_password>
-      <username>postfix</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>NFS statd daemon</fullname>
-      <gid>65533</gid>
-      <home>/var/lib/nfs</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/sbin/nologin</shell>
-      <uid>474</uid>
-      <user_password>!</user_password>
-      <username>statd</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>bin</fullname>
-      <gid>1</gid>
-      <home>/bin</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>1</uid>
-      <user_password>!</user_password>
-      <username>bin</username>
-    </user>
-    <user t="map">
-      <authorized_keys t="list"/>
-      <encrypted t="boolean">true</encrypted>
-      <fullname>root</fullname>
-      <gid>0</gid>
-      <home>/root</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/bin/bash</shell>
-      <uid>0</uid>
-      <user_password>$6$zAe5W7gw/kja9aKy$mM.BWtNyjalXrDNig4CUfN3bgfmehUIs8.zvBwWn1XroK104G.rY3lyup3OH8TujieUmgO4J74Df.LktV4A1K1</user_password>
-      <username>root</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>User for D-Bus</fullname>
-      <gid>499</gid>
-      <home>/run/dbus</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/bin/false</shell>
-      <uid>499</uid>
-      <user_password>!</user_password>
-      <username>messagebus</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>Manual pages viewer</fullname>
-      <gid>62</gid>
-      <home>/var/lib/empty</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>13</uid>
-      <user_password>!</user_password>
-      <username>man</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>Printing daemon</fullname>
-      <gid>497</gid>
-      <home>/var/spool/lpd</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>497</uid>
-      <user_password>!</user_password>
-      <username>lp</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>User for polkitd</fullname>
-      <gid>477</gid>
-      <home>/var/lib/polkit</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>477</uid>
-      <user_password>!</user_password>
-      <username>polkitd</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>Chrony Daemon</fullname>
-      <gid>482</gid>
-      <home>/var/lib/chrony</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>496</uid>
-      <user_password>!</user_password>
-      <username>chrony</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>nobody</fullname>
-      <gid>65534</gid>
-      <home>/var/lib/nobody</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/bin/bash</shell>
-      <uid>65534</uid>
-      <user_password>!</user_password>
-      <username>nobody</username>
-    </user>
-    <user t="map">
-      <encrypted t="boolean">true</encrypted>
-      <fullname>Mailer daemon</fullname>
-      <gid>498</gid>
-      <home>/var/spool/clientmqueue</home>
-      <home_btrfs_subvolume t="boolean">false</home_btrfs_subvolume>
-      <password_settings t="map">
-        <expire/>
-        <flag/>
-        <inact/>
-        <max/>
-        <min/>
-        <warn/>
-      </password_settings>
-      <shell>/usr/sbin/nologin</shell>
-      <uid>498</uid>
-      <user_password>!</user_password>
-      <username>mail</username>
-    </user>
-  </users>
-</profile>
@@ -15,11 +15,6 @@ EAT_TARGET_SYS:aarch64 ?= "${@ 'aarch64-none-linux-gnu' if os.path.exists('${EXT
 EAT_TARGET_SYS = "${TARGET_SYS}"
 TARGET_PREFIX = "${EAT_TARGET_SYS}-"

-EXTERNAL_TOOLCHAIN_LIBDIR = "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge', '/usr/lib', '/lib', d)}"
-EXTERNAL_TOOLCHAIN_DYN_LINKER_PATH:arm ?= " -Wl,--dynamic-linker=${EXTERNAL_TOOLCHAIN_LIBDIR}/ld-linux-armhf.so.3"
-EXTERNAL_TOOLCHAIN_DYN_LINKER_PATH:aarch64 ?= " -Wl,--dynamic-linker=${EXTERNAL_TOOLCHAIN_LIBDIR}/ld-linux-aarch64.so.1"
-TARGET_LDFLAGS:append:class-target = "${EXTERNAL_TOOLCHAIN_DYN_LINKER_PATH}"
-
 EAT_LIBDIR:arm = "lib"
 EAT_LIBDIR:aarch64 = "lib64"

@@ -1 +0,0 @@
-PACKAGECONFIG:remove = "${@bb.utils.contains('TCMODE', 'external-arm', 'libmount-mountfd-support', '' , d)}"
@@ -118,80 +118,54 @@ do_install() {
 	else
 		cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/libc/lib/${linker_name} ${D}${base_libdir}/
 	fi
+	ln -sf ../../lib/librt.so.1 ${D}${libdir}/librt.so
+	ln -sf ../../lib/libcrypt.so.1 ${D}${libdir}/libcrypt.so
+	ln -sf ../../lib/libresolv.so.2 ${D}${libdir}/libresolv.so
+	ln -sf ../../lib/libnss_hesiod.so.2 ${D}${libdir}/libnss_hesiod.so
+	ln -sf ../../lib/libutil.so.1 ${D}${libdir}/libutil.so
+	ln -sf ../../lib/libBrokenLocale.so.1 ${D}${libdir}/libBrokenLocale.so
+	ln -sf ../../lib/libpthread.so.0 ${D}${libdir}/libpthread.so
+	ln -sf ../../lib/libthread_db.so.1 ${D}${libdir}/libthread_db.so
+	ln -sf ../../lib/libanl.so.1 ${D}${libdir}/libanl.so
+	ln -sf ../../lib/libdl.so.2 ${D}${libdir}/libdl.so
+	ln -sf ../../lib/libnss_db.so.2 ${D}${libdir}/libnss_db.so
+	ln -sf ../../lib/libnss_dns.so.2 ${D}${libdir}/libnss_dns.so
+	ln -sf ../../lib/libnss_files.so.2 ${D}${libdir}/libnss_files.so
+	ln -sf ../../lib/libnss_compat.so.2 ${D}${libdir}/libnss_compat.so
+	ln -sf ../../lib/libm.so.6 ${D}${libdir}/libm.so
+	ln -sf ../../lib/libc_malloc_debug.so.0 ${D}${libdir}/libc_malloc_debug.so

-	if ${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge', 'false', 'true', d)}; then
-		ln -sf ../../lib/librt.so.1 ${D}${libdir}/librt.so
-		ln -sf ../../lib/libcrypt.so.1 ${D}${libdir}/libcrypt.so
-		ln -sf ../../lib/libresolv.so.2 ${D}${libdir}/libresolv.so
-		ln -sf ../../lib/libnss_hesiod.so.2 ${D}${libdir}/libnss_hesiod.so
-		ln -sf ../../lib/libutil.so.1 ${D}${libdir}/libutil.so
-		ln -sf ../../lib/libBrokenLocale.so.1 ${D}${libdir}/libBrokenLocale.so
-		ln -sf ../../lib/libpthread.so.0 ${D}${libdir}/libpthread.so
-		ln -sf ../../lib/libthread_db.so.1 ${D}${libdir}/libthread_db.so
-		ln -sf ../../lib/libanl.so.1 ${D}${libdir}/libanl.so
-		ln -sf ../../lib/libdl.so.2 ${D}${libdir}/libdl.so
-		ln -sf ../../lib/libnss_db.so.2 ${D}${libdir}/libnss_db.so
-		ln -sf ../../lib/libnss_dns.so.2 ${D}${libdir}/libnss_dns.so
-		ln -sf ../../lib/libnss_files.so.2 ${D}${libdir}/libnss_files.so
-		ln -sf ../../lib/libnss_compat.so.2 ${D}${libdir}/libnss_compat.so
-		ln -sf ../../lib/libm.so.6 ${D}${libdir}/libm.so
-		ln -sf ../../lib/libc_malloc_debug.so.0 ${D}${libdir}/libc_malloc_debug.so
-		if [ -f ${D}${base_libdir}/libmvec.so.1 ]; then
-			ln -sf ../../lib/libmvec.so.1 ${D}${libdir}/libmvec.so
+	# remove potential .so duplicates from base_libdir
+	# for all symlinks created above in libdir
+	rm -f ${D}${base_libdir}/librt.so
+	rm -f ${D}${base_libdir}/libcrypt.so
+	rm -f ${D}${base_libdir}/libresolv.so
+	rm -f ${D}${base_libdir}/libnss_hesiod.so
+	rm -f ${D}${base_libdir}/libutil.so
+	rm -f ${D}${base_libdir}/libBrokenLocale.so
+	rm -f ${D}${base_libdir}/libpthread.so
+	rm -f ${D}${base_libdir}/libthread_db.so
+	rm -f ${D}${base_libdir}/libanl.so
+	rm -f ${D}${base_libdir}/libdl.so
+	rm -f ${D}${base_libdir}/libnss_db.so
+	rm -f ${D}${base_libdir}/libnss_dns.so
+	rm -f ${D}${base_libdir}/libnss_files.so
+	rm -f ${D}${base_libdir}/libnss_compat.so
+	rm -f ${D}${base_libdir}/libm.so
+
+	# Move these completely to ${libdir} and delete duplicates in ${base_libdir}
+	for lib in asan hwasan atomic gfortran gomp itm lsan sanitizer stdc++ tsan ubsan; do
+		if [ -e ${D}${base_libdir}/lib${lib}.spec ] ; then
+			mv ${D}${base_libdir}/lib${lib}.spec ${D}${libdir}
 		fi
-
-		# remove potential .so duplicates from base_libdir
-		# for all symlinks created above in libdir
-		rm -f ${D}${base_libdir}/librt.so
-		rm -f ${D}${base_libdir}/libcrypt.so
-		rm -f ${D}${base_libdir}/libresolv.so
-		rm -f ${D}${base_libdir}/libnss_hesiod.so
-		rm -f ${D}${base_libdir}/libutil.so
-		rm -f ${D}${base_libdir}/libBrokenLocale.so
-		rm -f ${D}${base_libdir}/libpthread.so
-		rm -f ${D}${base_libdir}/libthread_db.so
-		rm -f ${D}${base_libdir}/libanl.so
-		rm -f ${D}${base_libdir}/libdl.so
-		rm -f ${D}${base_libdir}/libnss_db.so
-		rm -f ${D}${base_libdir}/libnss_dns.so
-		rm -f ${D}${base_libdir}/libnss_files.so
-		rm -f ${D}${base_libdir}/libnss_compat.so
-		rm -f ${D}${base_libdir}/libm.so
-		rm -f ${D}${base_libdir}/libmvec.so
-
-		# Move these completely to ${libdir} and delete duplicates in ${base_libdir}
-		for lib in asan hwasan atomic gfortran gomp itm lsan sanitizer stdc++ tsan ubsan; do
-			if [ -e ${D}${base_libdir}/lib${lib}.spec ] ; then
-				mv ${D}${base_libdir}/lib${lib}.spec ${D}${libdir}
-			fi
-			if [ -e ${D}${base_libdir}/lib${lib}.a ] ; then
-				mv ${D}${base_libdir}/lib${lib}.a ${D}${libdir}
-			fi
-			rm -f ${D}${base_libdir}/lib${lib}*
-		done
-
-		# Clean up duplicate libs that are both in base_libdir and libdir
-		rm -f ${D}${libdir}/libgcc*
-	else
-		ln -sf libcrypt.so.1 ${D}${libdir}/libcrypt.so
-		ln -sf libresolv.so.2 ${D}${libdir}/libresolv.so
-		ln -sf libnss_hesiod.so.2 ${D}${libdir}/libnss_hesiod.so
-		ln -sf libutil.so.1 ${D}${libdir}/libutil.so
-		ln -sf libBrokenLocale.so.1 ${D}${libdir}/libBrokenLocale.so
-		ln -sf libpthread.so.0 ${D}${libdir}/libpthread.so
-		ln -sf libthread_db.so.1 ${D}${libdir}/libthread_db.so
-		ln -sf libanl.so.1 ${D}${libdir}/libanl.so
-		ln -sf libdl.so.2 ${D}${libdir}/libdl.so
-		ln -sf libnss_db.so.2 ${D}${libdir}/libnss_db.so
-		ln -sf libnss_dns.so.2 ${D}${libdir}/libnss_dns.so
-		ln -sf libnss_files.so.2 ${D}${libdir}/libnss_files.so
-		ln -sf libnss_compat.so.2 ${D}${libdir}/libnss_compat.so
-		ln -sf libm.so.6 ${D}${libdir}/libm.so
-		ln -sf libc_malloc_debug.so.0 ${D}${libdir}/libc_malloc_debug.so
-		if [ -f ${D}${libdir}/libmvec.so.1 ]; then
-			ln -sf libmvec.so.1 ${D}${libdir}/libmvec.so
+		if [ -e ${D}${base_libdir}/lib${lib}.a ] ; then
+			mv ${D}${base_libdir}/lib${lib}.a ${D}${libdir}
 		fi
-	fi
+		rm -f ${D}${base_libdir}/lib${lib}*
+	done
+
+	# Clean up duplicate libs that are both in base_libdir and libdir
+	rm -f ${D}${libdir}/libgcc*

 	# Besides ld-${EAT_VER_LIBC}.so, other libs can have duplicates like lib*-${EAT_VER_LIBC}.so
 	# Only remove them if both are regular files and are identical
@@ -231,13 +205,13 @@ do_install() {
 	rm -rf ${D}${includedir}/rpcsvc/rquota.*

 	if [ -f ${D}${libdir}/libc.so ];then
-		sed -i -e "s# /usr/${EAT_LIBDIR}/# /usr/lib/#g" -e "s# /${EAT_LIBDIR}/ld-linux# ../../${base_libdir}/ld-linux#g" ${D}${libdir}/libc.so
+		sed -i -e "s# /${EAT_LIBDIR}/${EAT_TARGET_SYS}# ../../${EAT_LIBDIR}#g" -e "s# /usr/${EAT_LIBDIR}/# /usr/lib/#g" -e "s# /usr/${EAT_LIBDIR}/${EAT_TARGET_SYS}# .#g" -e "s# /${EAT_LIBDIR}/ld-linux# ../../${EAT_LIBDIR}/ld-linux#g" ${D}${libdir}/libc.so
 		sed -i -e "s# /${EAT_LIBDIR}/libc.so.6# /lib/libc.so.6#g" ${D}${libdir}/libc.so
-		sed -i -e "s# /lib# ../../${base_libdir}#g" -e "s# /usr/lib# .#g" ${D}${libdir}/libc.so
+		sed -i -e "s# /lib# ../../lib#g" -e "s# /usr/lib# .#g" ${D}${libdir}/libc.so
 	fi

 	if [ -f ${D}${base_libdir}/libc.so ];then
-		sed -i -e "s# /${EAT_LIBDIR}/# /lib/#g" ${D}${base_libdir}/libc.so
+		sed -i -e "s# /${EAT_LIBDIR}/${EAT_TARGET_SYS}# ../../lib#g" -e "s# /usr/${EAT_LIBDIR}/${EAT_TARGET_SYS}# .#g" -e "s# /${EAT_LIBDIR}/# /lib/#g" ${D}${base_libdir}/libc.so
 		if [ -f ${D}${base_libdir}/libc.so.6 ]; then
 			sed -i -e "s# /usr/${EAT_LIBDIR}/libc.so.6# /lib/libc.so.6#g" -e "s# /${EAT_LIBDIR}/libc.so.6# /lib/libc.so.6#g" ${D}${base_libdir}/libc.so.6
 		fi
@@ -553,6 +527,7 @@ FILES:${PN} += "\
 	${base_libdir}/ld*.so.* \
 	${base_libdir}/ld-*.so \
 	${base_libdir}/libpthread*.so.* \
+	${base_libdir}/libpthread*.so \
 	${base_libdir}/libpthread-*.so \
 	${base_libdir}/libresolv*.so.* \
 	${base_libdir}/libresolv-*.so \
@@ -134,14 +134,8 @@ class FVPRunner:
        for console in self._pexpects:
            import pexpect
            # Ensure pexpect logs all remaining output to the logfile
-            try:
-                console.expect(pexpect.EOF, timeout=30.0)
-            except pexpect.TIMEOUT:
-                pexpect_logfile = ""
-                if console.logfile is not None:
-                    pexpect_logfile = f" ({console.logfile})"
-                self._logger.debug(f"Unable to get EOF on pexpect spawn obj{pexpect_logfile}.")
-            console.close(force=True)
+            console.expect(pexpect.EOF, timeout=5.0)
+            console.close()

        if self._fvp_process and self._fvp_process.returncode and \
                self._fvp_process.returncode > 0:
@@ -1,21 +0,0 @@
-SUMMARY = "execstack tool"
-LICENSE = "GPL-2.0-or-later"
-LIC_FILES_CHKSUM = "file://COPYING;md5=c93c0550bd3173f4504b2cbd8991e50b"
-
-DEPENDS = "binutils-native elfutils-native"
-
-SRC_URI = "git://git.yoctoproject.org/prelink-cross;protocol=https;branch=master"
-SRCREV = "ff2561c02ade96c5d4d56ddd4e27ff064840a176"
-PV = "1.0+git${SRCPV}"
-
-S = "${WORKDIR}/git"
-
-inherit autotools native
-
-do_compile() {
-    oe_runmake -C ${B}/src execstack
-}
-
-do_install() {
-    oe_runmake -C ${B}/src install-binPROGRAMS DESTDIR="${D}"
-}
@@ -14,6 +14,3 @@ UPSTREAM_VERSION_UNKNOWN = "1"
 MODEL_CODE = "FVP_Base_RevC-2xAEMvA"

 COMPATIBLE_HOST = "(aarch64|x86_64).*-linux"
-
-require remove-execstack.inc
-REMOVE_EXECSTACKS:x86-64 = "${FVPDIR}/models/${FVP_ARCH_DIR}*/libarmctmodel.so"
@@ -1,26 +0,0 @@
-# Clear the executable stack flag on named shared libraries. This are typically
-# not needed, and glibc 2.41 will refuse to dlopen() a library that expects
-# an executable stack.
-#
-# The stack permissions can be checked with readelf -lW <.so> | grep GNU_STACK.
-# RW is read/write, RWE is read/write/execute.
-
-DEPENDS += "execstack-native"
-
-REMOVE_EXECSTACKS ?= ""
-
-do_install:append() {
-    for SO in ${REMOVE_EXECSTACKS}; do
-        NAME=$(basename $SO)
-        SO=${D}$SO
-
-        test -f $SO || bbfatal remove-execstack: cannot find $SO
-
-        if execstack --query $SO | grep -q ^X; then
-            bbnote "Stripping executable stack bit on $NAME"
-            execstack --clear-execstack $SO
-        else
-            bbwarn "Executable stack stripping no longer required for $NAME, remove"
-        fi
-    done
-}
Author	SHA1	Message	Date
James McGregor	03eedad2ad	arm-gcs: add recipe for GDB with GCS support The GCS support patches are based on GDB 15. Copy the GDB 14.2 recipe from meta, upgrade to 15.1, and add the patches. Signed-off-by: James McGregor <james.mcgregor2@arm.com>	2024-09-13 12:35:03 +01:00
James McGregor	d2733037ad	arm-gcs/linux-yocto: update to 6.11-rc3 and v12 of the GCS patches Update the GCS patches to v12. They've been rebased onto 6.11-rc3, so update to use that too. GCS support now depends on !UPROBES, so add a config fragment to disable it. Signed-off-by: James McGregor <james.mcgregor2@arm.com>	2024-09-02 15:46:08 +01:00
Ross Burton	27f7248eac	arm-gcs: set compiler tune to 8.0 This matches the behaviour from mainstream distributions which don't tune for 8.4. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-07 11:53:21 +01:00
James McGregor	a9fde75f5f	arm-gcs: add test for GCS CHKFEAT Add a new recipes-test layer and GCS test. The test checks that CHKFEAT reports GCS as enabled. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:37:55 +01:00
James McGregor	fe553984a9	arm-gcs/glibc: fix prctl() argument definitions The values prctl() expects for shadow stack operations have changed. Update the glibc patch to match the values in the kernel. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:37:52 +01:00
Ross Burton	d2c43f9aba	arm-gcs/README: show how to run tests	2024-08-06 13:36:29 +01:00
Ross Burton	1aef83326a	glibc: refresh GCS patch No large changes, but incorporates the HWCAP2_GCS fix. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	2c74be10d8	gcs.yml: fix a comment Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	bb98b3c2dc	kselftest: add kselftest recipe and integrate into testimage Package up the kselftest from the kernel, and execute the arm64 GCS tests inside CI. At the moment some of the tests fail: gcs_write_fault and gcs_stress. Mark the test as expected to fail until this is resolved. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	0d3bc7947a	linux-libc-headers: add 6.10 patched kernel headers kselftest needs bleeding-edge kernel headers as it wants to use the new symbols, so add a recipe. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	b368aecda5	glibc: fix HWCAP2_GCS definition The bit index for HWCAP2_GCS changed, so update the glibc patch to reflect the number used in the kernel. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	062c2c9e10	CI: remove duplicated testimage options Change gcs-test.yml so that it just enables automatic testimage and does not duplicate options. Also change debug-tweaks to the specific features that we want. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	a66b286e73	arm-gcs/linux-yocto: update to 6.10-rc3 and v9 of the GCS patches Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	db69a338d9	Add CI for GCS Add a basic job for testing the GCS patches that runs testimage with the gcs test suite. For speed, disable all the other jobs. Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	1b294d0dbe	Add some automated GCS testing	2024-08-06 13:36:29 +01:00
Ross Burton	3ba2ff271a	arm-gcs: tighten layer dependencies Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
Ross Burton	b1dd7d90f6	Add GCS prototype Signed-off-by: Ross Burton <ross.burton@arm.com>	2024-08-06 13:36:29 +01:00
				`@@ -0,0 +1 @@`
				`EXTRA_OEMAKE:append:fvp-base = " CTX_INCLUDE_AARCH32_REGS=0"`
				`@@ -1 +0,0 @@`
				`PACKAGECONFIG:remove = "${@bb.utils.contains('TCMODE', 'external-arm', 'libmount-mountfd-support', '' , d)}"`