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Tue, 24 Nov 2020 23:53:39 +0000 From: Song Liu To: Jiri Olsa CC: open list , Kernel Team , "peterz@infradead.org" , "mingo@redhat.com" , "acme@kernel.org" , "mark.rutland@arm.com" , "alexander.shishkin@linux.intel.com" , "namhyung@kernel.org" Subject: Re: [RFC 1/2] perf: support build BPF skeletons with perf Thread-Topic: [RFC 1/2] perf: support build BPF skeletons with perf Thread-Index: AQHWvi+b1vCwOQIg40KNUQdgLO76QanXuf4AgABDsQA= Date: Tue, 24 Nov 2020 23:53:39 +0000 Message-ID: <3DD59629-4612-4D42-BFBB-7F0253CF59AB@fb.com> References: <20201119045046.1491106-1-songliubraving@fb.com> <20201119045046.1491106-2-songliubraving@fb.com> <20201124195122.GD2164284@krava> In-Reply-To: <20201124195122.GD2164284@krava> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3608.120.23.2.4) authentication-results: redhat.com; dkim=none (message not signed) header.d=none;redhat.com; dmarc=none action=none header.from=fb.com; x-originating-ip: [2620:10d:c090:400::5:f2e3] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: fc56eb05-9dd3-420e-bada-08d890d42a63 x-ms-traffictypediagnostic: BYAPR15MB2566: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-fb-source: Internal x-ms-oob-tlc-oobclassifiers: OLM:4303; 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charset="us-ascii" Content-ID: <24324FA9B0DE5F458143F41A54A502B3@namprd15.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR15MB2999.namprd15.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: fc56eb05-9dd3-420e-bada-08d890d42a63 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Nov 2020 23:53:39.0211 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 9mElP5GrvAE9ITttAT7gjVk33dMJnvnDRvLVzyzcvVIbZRVmPkHGJ5xphMMCglRiqM2Snm0tPcWcm5O5wgpXqw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB2566 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-24_11:2020-11-24,2020-11-24 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 adultscore=0 lowpriorityscore=0 suspectscore=0 mlxlogscore=999 priorityscore=1501 spamscore=0 impostorscore=0 bulkscore=0 malwarescore=0 mlxscore=0 phishscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011240139 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Nov 24, 2020, at 11:51 AM, Jiri Olsa wrote: >=20 > On Wed, Nov 18, 2020 at 08:50:45PM -0800, Song Liu wrote: >=20 > SNIP >=20 >> + $(Q)$(BPFTOOL) gen skeleton $< > $@ >> + >> +$(TMP_OUTPUT)/%.bpf.o: %.bpf.c $(TMP_OUTPUT)/vmlinux.h $(BPFOBJ) | $(TM= P_OUTPUT) >> + $(call msg,BPF,$@) >> + $(Q)$(CLANG) -g -O2 -target bpf $(INCLUDES) \ >> + -c $(filter %.c,$^) -o $@ && \ >> + $(LLVM_STRIP) -g $@ >> + >> +$(TMP_OUTPUT): >> + $(call msg,MKDIR,$@) >> + $(Q)mkdir -p $(TMP_OUTPUT) >> + >> +$(TMP_OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(TMP_OUTPUT) $(BPFTOOL) >=20 > please add support to specify VMLINUX_H as it is in selftests > or bpftool, we will need it in out building setup >=20 > thanks, > jirka Let me try that.=20 Thanks, Song=