From patchwork Mon Dec 11 20:20:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Xu X-Patchwork-Id: 13488033 X-Patchwork-Delegate: bpf@iogearbox.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dxuuu.xyz header.i=@dxuuu.xyz header.b="RaRLt9SV"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="WSTchHOM" Received: from new1-smtp.messagingengine.com (new1-smtp.messagingengine.com [66.111.4.221]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80ED6E3; Mon, 11 Dec 2023 12:20:39 -0800 (PST) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id CC69C580941; Mon, 11 Dec 2023 15:20:37 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Mon, 11 Dec 2023 15:20:38 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dxuuu.xyz; h=cc :cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1702326037; x= 1702333237; bh=Z+7Afm7t3HxDVtoQyXLZsXvB2QVInlcd4KmkW3EtfRk=; b=R aRLt9SVSyKuuDe22zYwMyaVAE8/6rnKefPjC2wNw1goQIuwQ1Vw05Bbj2RamKY25 uXsFyUz60bnpgmJ0CHih/h6ydoKK29oZaj4UXxozABRc9lkTOlBo4Wzo8cAOe7bD IkYKurm8uYAqnD0xXGFgZjRXNQM0vG4MM43ZNen8hE2/q8/61zpWywU3ETcCwmaf OXlNH330vVlGJLiXVIWN+tKU2Cl5jvYXE9HDyRImOO8pqpJgX0DwSJuun8pTBPYM 1eqfBmm/X46cbdwuNmlKpS2niX04HsLcOKkPz2xyFnvcLJMh6dUbH9pCNge+nUJJ ziQl7sn+BfI9ej4T9q3Lw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=1702326037; x= 1702333237; bh=Z+7Afm7t3HxDVtoQyXLZsXvB2QVInlcd4KmkW3EtfRk=; b=W STchHOMpPccC2UrdnlLgaMC6ATGPAGtAvN3fcGijk+M5jNSEsGzo35xbR2WNmoQI qpJbKAbV3oTDC4OeY1P809RDlYkYc5sHoBAxUyVXg+eK2Y/wRbwTCEczaBPahzFo Vi3lK3EL+ixFnWr/vNuwDqorTbzR+OWUunuubnFuuCPer2amY9BWkGxDGwLg2QVU aLTHkB5xB3caMnQFAn6ZGueAn3FgdRcBjyYwUaN4NExJKNeXqAqltjkFkKAH9f2I HaKH9DYEkC+P3A8vZZ5nWn74lZd6N0Xy8hWgvyetTMVacciDO1UZ4fbilVnddtTc w7aa4H1yx6LHDE3TikWHw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvkedrudelvddgudefkecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecufghrlhcuvffnffculdefhedmnecujfgurhephf fvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepffgrnhhivghlucgiuhcu oegugihusegugihuuhhurdighiiiqeenucggtffrrghtthgvrhhnpefgfefggeejhfduie ekvdeuteffleeifeeuvdfhheejleejjeekgfffgefhtddtteenucevlhhushhtvghrufhi iigvpedunecurfgrrhgrmhepmhgrihhlfhhrohhmpegugihusegugihuuhhurdighiii X-ME-Proxy: Feedback-ID: i6a694271:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 11 Dec 2023 15:20:35 -0500 (EST) From: Daniel Xu To: ast@kernel.org, andrii@kernel.org, shuah@kernel.org, daniel@iogearbox.net, steffen.klassert@secunet.com, antony.antony@secunet.com, alexei.starovoitov@gmail.com, yonghong.song@linux.dev, eddyz87@gmail.com, eyal.birger@gmail.com Cc: mykolal@fb.com, martin.lau@linux.dev, song@kernel.org, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, devel@linux-ipsec.org, netdev@vger.kernel.org Subject: [PATCH bpf-next v5 4/9] bpf: selftests: test_loader: Support __btf_path() annotation Date: Mon, 11 Dec 2023 13:20:08 -0700 Message-ID: <660ea7f2fdbdd5103bc1af87c9fc931f05327926.1702325874.git.dxu@dxuuu.xyz> X-Mailer: git-send-email 2.42.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net This commit adds support for per-prog btf_custom_path. This is necessary for testing CO-RE relocations on non-vmlinux types using test_loader infrastructure. Acked-by: Andrii Nakryiko Signed-off-by: Daniel Xu --- tools/testing/selftests/bpf/progs/bpf_misc.h | 1 + tools/testing/selftests/bpf/test_loader.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/tools/testing/selftests/bpf/progs/bpf_misc.h b/tools/testing/selftests/bpf/progs/bpf_misc.h index 799fff4995d8..2fd59970c43a 100644 --- a/tools/testing/selftests/bpf/progs/bpf_misc.h +++ b/tools/testing/selftests/bpf/progs/bpf_misc.h @@ -71,6 +71,7 @@ #define __retval_unpriv(val) __attribute__((btf_decl_tag("comment:test_retval_unpriv="#val))) #define __auxiliary __attribute__((btf_decl_tag("comment:test_auxiliary"))) #define __auxiliary_unpriv __attribute__((btf_decl_tag("comment:test_auxiliary_unpriv"))) +#define __btf_path(path) __attribute__((btf_decl_tag("comment:test_btf_path=" path))) /* Convenience macro for use with 'asm volatile' blocks */ #define __naked __attribute__((naked)) diff --git a/tools/testing/selftests/bpf/test_loader.c b/tools/testing/selftests/bpf/test_loader.c index a350ecdfba4a..74ceb7877ae2 100644 --- a/tools/testing/selftests/bpf/test_loader.c +++ b/tools/testing/selftests/bpf/test_loader.c @@ -27,6 +27,7 @@ #define TEST_TAG_RETVAL_PFX_UNPRIV "comment:test_retval_unpriv=" #define TEST_TAG_AUXILIARY "comment:test_auxiliary" #define TEST_TAG_AUXILIARY_UNPRIV "comment:test_auxiliary_unpriv" +#define TEST_BTF_PATH "comment:test_btf_path=" /* Warning: duplicated in bpf_misc.h */ #define POINTER_VALUE 0xcafe4all @@ -58,6 +59,7 @@ struct test_spec { const char *prog_name; struct test_subspec priv; struct test_subspec unpriv; + const char *btf_custom_path; int log_level; int prog_flags; int mode_mask; @@ -288,6 +290,8 @@ static int parse_test_spec(struct test_loader *tester, goto cleanup; update_flags(&spec->prog_flags, flags, clear); } + } else if (str_has_pfx(s, TEST_BTF_PATH)) { + spec->btf_custom_path = s + sizeof(TEST_BTF_PATH) - 1; } } @@ -578,6 +582,9 @@ void run_subtest(struct test_loader *tester, } } + /* Implicitly reset to NULL if next test case doesn't specify */ + open_opts->btf_custom_path = spec->btf_custom_path; + tobj = bpf_object__open_mem(obj_bytes, obj_byte_cnt, open_opts); if (!ASSERT_OK_PTR(tobj, "obj_open_mem")) /* shouldn't happen */ goto subtest_cleanup;