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Thu, 20 Jun 2024 11:51:30 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 193.8.40.94) smtp.mailfrom=leica-geosystems.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=leica-geosystems.com; Received-SPF: Pass (protection.outlook.com: domain of leica-geosystems.com designates 193.8.40.94 as permitted sender) receiver=protection.outlook.com; client-ip=193.8.40.94; helo=hexagon.com; pr=C Received: from hexagon.com (193.8.40.94) by AMS0EPF000001A7.mail.protection.outlook.com (10.167.16.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.15 via Frontend Transport; Thu, 20 Jun 2024 11:51:30 +0000 Received: from aherlnxbspsrv01.lgs-net.com ([10.60.34.116]) by hexagon.com with Microsoft SMTPSVC(10.0.17763.1697); Thu, 20 Jun 2024 13:51:29 +0200 From: Johannes Schneider To: openembedded-core@lists.openembedded.org, Ross.Burton@arm.com CC: Johannes Schneider Subject: [PATCH v2 1/3] systemd: add PACKAGECONFIG for bpf-framework Date: Thu, 20 Jun 2024 13:51:25 +0200 Message-ID: <20240620115127.36172-2-johannes.schneider@leica-geosystems.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240620115127.36172-1-johannes.schneider@leica-geosystems.com> References: <20240620115127.36172-1-johannes.schneider@leica-geosystems.com> MIME-Version: 1.0 X-OriginalArrivalTime: 20 Jun 2024 11:51:29.0448 (UTC) FILETIME=[3011D280:01DAC308] X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AMS0EPF000001A7:EE_|GV1PR06MB9075:EE_ X-MS-Office365-Filtering-Correlation-Id: 3a93c121-c6ea-46bf-8b9e-08dc911f5305 X-SET-LOWER-SCL-SCANNER: YES X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230037|36860700010|376011|82310400023|1800799021; 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X-OriginatorOrg: leica-geosystems.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Jun 2024 11:51:30.2341 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3a93c121-c6ea-46bf-8b9e-08dc911f5305 X-MS-Exchange-CrossTenant-Id: 1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a;Ip=[193.8.40.94];Helo=[hexagon.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF000001A7.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV1PR06MB9075 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Thu, 20 Jun 2024 11:51:40 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/200947 The bpf-framework is used to pre-compile eBPFs that required for the systemd.resource-control features RestrictFileSystems=[1] and RestrictNetworkInterfaces=[2] to work. Apart from 'clang-native' to compile the eBPFs, the required kernel switches are described in [3]. Link: https://www.freedesktop.org/software/systemd/man/latest/systemd.resource-control.html#RestrictFileSystems= Link: https://www.freedesktop.org/software/systemd/man/latest/systemd.resource-control.html#RestrictNetworkInterfaces= Link: https://kinvolk.io/blog/2021/04/extending-systemd-security-features-with-ebpf/ Signed-off-by: Johannes Schneider --- meta/recipes-core/systemd/systemd_255.6.bb | 1 + 1 file changed, 1 insertion(+) diff --git a/meta/recipes-core/systemd/systemd_255.6.bb b/meta/recipes-core/systemd/systemd_255.6.bb index 15b631fc07..defdb15620 100644 --- a/meta/recipes-core/systemd/systemd_255.6.bb +++ b/meta/recipes-core/systemd/systemd_255.6.bb @@ -132,6 +132,7 @@ PACKAGECONFIG[acl] = "-Dacl=true,-Dacl=false,acl" PACKAGECONFIG[audit] = "-Daudit=true,-Daudit=false,audit" PACKAGECONFIG[backlight] = "-Dbacklight=true,-Dbacklight=false" PACKAGECONFIG[binfmt] = "-Dbinfmt=true,-Dbinfmt=false" +PACKAGECONFIG[bpf-framework] = "-Dbpf-framework=true,-Dbpf-framework=false,clang-native bpftool-native libbpf,libbpf" PACKAGECONFIG[bzip2] = "-Dbzip2=true,-Dbzip2=false,bzip2" PACKAGECONFIG[cgroupv2] = "-Ddefault-hierarchy=unified,-Ddefault-hierarchy=hybrid" PACKAGECONFIG[coredump] = "-Dcoredump=true,-Dcoredump=false" From patchwork Thu Jun 20 11:51:26 2024 Content-Type: text/plain; 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Thu, 20 Jun 2024 11:51:30 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 193.8.40.94) smtp.mailfrom=leica-geosystems.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=leica-geosystems.com; Received-SPF: Pass (protection.outlook.com: domain of leica-geosystems.com designates 193.8.40.94 as permitted sender) receiver=protection.outlook.com; client-ip=193.8.40.94; helo=hexagon.com; pr=C Received: from hexagon.com (193.8.40.94) by AMS0EPF000001A7.mail.protection.outlook.com (10.167.16.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.15 via Frontend Transport; Thu, 20 Jun 2024 11:51:30 +0000 Received: from aherlnxbspsrv01.lgs-net.com ([10.60.34.116]) by hexagon.com with Microsoft SMTPSVC(10.0.17763.1697); Thu, 20 Jun 2024 13:51:29 +0200 From: Johannes Schneider To: openembedded-core@lists.openembedded.org, Ross.Burton@arm.com CC: Johannes Schneider Subject: [PATCH v2 2/3] systemd: bpf-framework: 'propagate' the '--sysroot=' for crosscompilation Date: Thu, 20 Jun 2024 13:51:26 +0200 Message-ID: <20240620115127.36172-3-johannes.schneider@leica-geosystems.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240620115127.36172-1-johannes.schneider@leica-geosystems.com> References: <20240620115127.36172-1-johannes.schneider@leica-geosystems.com> MIME-Version: 1.0 X-OriginalArrivalTime: 20 Jun 2024 11:51:29.0448 (UTC) FILETIME=[3011D280:01DAC308] X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AMS0EPF000001A7:EE_|VI1PR06MB6479:EE_ X-MS-Office365-Filtering-Correlation-Id: 92a8e45e-042c-4174-9d49-08dc911f5337 X-SET-LOWER-SCL-SCANNER: YES X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230037|376011|36860700010|82310400023|1800799021; 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X-OriginatorOrg: leica-geosystems.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Jun 2024 11:51:30.5622 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 92a8e45e-042c-4174-9d49-08dc911f5337 X-MS-Exchange-CrossTenant-Id: 1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a;Ip=[193.8.40.94];Helo=[hexagon.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF000001A7.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR06MB6479 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Thu, 20 Jun 2024 11:51:40 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/200949 The eBPFs are pre-compiled during the systemd-build with a different compiler than the cross-compiler used to build systemd itself. This is either a 'clang-native' or a gcc (bpf-unknown-none) which do not see the BUILD_CFLAGS, that point to the correct include search patch. To address this have systemd's meson.build "propagate" the --system from the C_FLAGS into the BPF compiler call. Signed-off-by: Johannes Schneider --- ...pagate-sysroot-for-cross-compilation.patch | 31 +++++++++++++++++++ meta/recipes-core/systemd/systemd_255.6.bb | 1 + 2 files changed, 32 insertions(+) create mode 100644 meta/recipes-core/systemd/systemd/0023-meson-bpf-propagate-sysroot-for-cross-compilation.patch diff --git a/meta/recipes-core/systemd/systemd/0023-meson-bpf-propagate-sysroot-for-cross-compilation.patch b/meta/recipes-core/systemd/systemd/0023-meson-bpf-propagate-sysroot-for-cross-compilation.patch new file mode 100644 index 0000000000..e8116b0540 --- /dev/null +++ b/meta/recipes-core/systemd/systemd/0023-meson-bpf-propagate-sysroot-for-cross-compilation.patch @@ -0,0 +1,31 @@ +From 7463b382bcaf26aacc60b73f98f0262aa41db3ee Mon Sep 17 00:00:00 2001 +From: Johannes Schneider +Date: Thu, 20 Jun 2024 12:32:18 +0200 +Subject: [PATCH] meson: bpf: propagate 'sysroot' for cross compilation + +During cross-compilation of systemd, the compiler used to build the bpf's needs +to be pointed at the correct include searchpath. Which can be done by passing +the corresponding directory in through the cflags; for example in yocto/bitbake +this would work: CFLAGS += "--sysroot=${STAGING_DIR_TARGET}" + +Upstream-Status: Submitted [https://github.com/systemd/systemd/pull/33427] +Signed-off-by: Johannes Schneider +--- + meson.build | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/meson.build b/meson.build +index 187e7b216d..15df058ab6 100644 +--- a/meson.build ++++ b/meson.build +@@ -1691,6 +1691,7 @@ if conf.get('BPF_FRAMEWORK') == 1 + '-ffile-prefix-map=', + '-fdebug-prefix-map=', + '-fmacro-prefix-map=', ++ '--sysroot=', + ] + + foreach opt : c_args +-- +2.34.1 + diff --git a/meta/recipes-core/systemd/systemd_255.6.bb b/meta/recipes-core/systemd/systemd_255.6.bb index defdb15620..d2c5e09697 100644 --- a/meta/recipes-core/systemd/systemd_255.6.bb +++ b/meta/recipes-core/systemd/systemd_255.6.bb @@ -28,6 +28,7 @@ SRC_URI += " \ file://systemd-pager.sh \ file://0002-binfmt-Don-t-install-dependency-links-at-install-tim.patch \ file://0008-implment-systemd-sysv-install-for-OE.patch \ + file://0023-meson-bpf-propagate-sysroot-for-cross-compilation.patch \ " # patches needed by musl From patchwork Thu Jun 20 11:51:27 2024 Content-Type: text/plain; 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Thu, 20 Jun 2024 11:51:32 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 193.8.40.94) smtp.mailfrom=leica-geosystems.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=leica-geosystems.com; Received-SPF: Pass (protection.outlook.com: domain of leica-geosystems.com designates 193.8.40.94 as permitted sender) receiver=protection.outlook.com; client-ip=193.8.40.94; helo=hexagon.com; pr=C Received: from hexagon.com (193.8.40.94) by AMS0EPF000001A7.mail.protection.outlook.com (10.167.16.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.15 via Frontend Transport; Thu, 20 Jun 2024 11:51:32 +0000 Received: from aherlnxbspsrv01.lgs-net.com ([10.60.34.116]) by hexagon.com with Microsoft SMTPSVC(10.0.17763.1697); Thu, 20 Jun 2024 13:51:29 +0200 From: Johannes Schneider To: openembedded-core@lists.openembedded.org, Ross.Burton@arm.com CC: Johannes Schneider Subject: [PATCH v2 3/3] systemd: bpf-framework: pass 'recipe-sysroot' to BPF compiler Date: Thu, 20 Jun 2024 13:51:27 +0200 Message-ID: <20240620115127.36172-4-johannes.schneider@leica-geosystems.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240620115127.36172-1-johannes.schneider@leica-geosystems.com> References: <20240620115127.36172-1-johannes.schneider@leica-geosystems.com> MIME-Version: 1.0 X-OriginalArrivalTime: 20 Jun 2024 11:51:29.0511 (UTC) FILETIME=[301B6F70:01DAC308] X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AMS0EPF000001A7:EE_|AM8PR06MB6993:EE_ X-MS-Office365-Filtering-Correlation-Id: bff51688-c7bb-4891-553b-08dc911f5453 X-SET-LOWER-SCL-SCANNER: YES X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230037|1800799021|82310400023|36860700010|376011; 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Signed-off-by: Johannes Schneider --- meta/recipes-core/systemd/systemd_255.6.bb | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/meta/recipes-core/systemd/systemd_255.6.bb b/meta/recipes-core/systemd/systemd_255.6.bb index d2c5e09697..0376412f61 100644 --- a/meta/recipes-core/systemd/systemd_255.6.bb +++ b/meta/recipes-core/systemd/systemd_255.6.bb @@ -234,6 +234,10 @@ PACKAGECONFIG[zstd] = "-Dzstd=true,-Dzstd=false,zstd" RESOLV_CONF ??= "" +# bpf-framework: pass the recipe-sysroot to the compiler used to build +# the eBPFs, so that it can find needed system includes in there. +CFLAGS:append = " --sysroot=${STAGING_DIR_TARGET}" + # Helper variables to clarify locations. This mirrors the logic in systemd's # build system. rootprefix ?= "${root_prefix}"