From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D1117E for ; Thu, 3 Aug 2023 09:52:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A972AC433C8; Thu, 3 Aug 2023 09:52:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1691056365; bh=+DDY0D4Y6bFjiG8v3EZ/JqpUklUKAy8LVEiwQiD7ld4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Uq53IrApDnK2ynOsTLE5dMpcmx7Le5FKJMMWMeJSQuBBmrKNCQeytW81i4qkJ6qKi e2J9Gb76NJpFlDbF2ac4oRfhR8cfZN6eYKLr2m556vysCmSIF7Uh9i0Yv/yxHnjK7X FPQX32IlwzURRAMoM6dcKBOBzFi+7Nw6F4+eQ7gXCKqIcavQhMGCjsB+pOgfPlBOBT eyZYMAOQd6hP0b2xEBKbSyT3OZormZvU+iYKhgM9plrG6TZw64fzuV3Zbv7ywaVx0k xkg9qiE3Wy8yZDHBIzzwQsRUqiYm94EIwzbOmmZGUikBWXAUCGHbrZBU3fCquA+XBR I7xWhiRUjm2nA== From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: Alan Maguire , bpf@vger.kernel.org, Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , "Masami Hiramatsu (Google)" , Steven Rostedt Subject: [PATCHv2 bpf-next 2/3] selftests/bpf: Add bpf_get_func_ip tests for uprobe on function entry Date: Thu, 3 Aug 2023 11:52:18 +0200 Message-ID: <20230803095219.1669065-3-jolsa@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230803095219.1669065-1-jolsa@kernel.org> References: <20230803095219.1669065-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Adding get_func_ip tests for uprobe on function entry that validates that bpf_get_func_ip returns proper values from both uprobe and return uprobe. Tested-by: Alan Maguire Signed-off-by: Jiri Olsa --- .../bpf/prog_tests/get_func_ip_test.c | 11 ++++++++ .../selftests/bpf/progs/get_func_ip_test.c | 25 +++++++++++++++++-- 2 files changed, 34 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c b/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c index fede8ef58b5b..114cdbc04caf 100644 --- a/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c +++ b/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c @@ -1,6 +1,11 @@ // SPDX-License-Identifier: GPL-2.0 #include #include "get_func_ip_test.skel.h" +#include "get_func_ip_uprobe_test.skel.h" + +static noinline void uprobe_trigger(void) +{ +} static void test_function_entry(void) { @@ -20,6 +25,8 @@ static void test_function_entry(void) if (!ASSERT_OK(err, "get_func_ip_test__attach")) goto cleanup; + skel->bss->uprobe_trigger = (unsigned long) uprobe_trigger; + prog_fd = bpf_program__fd(skel->progs.test1); err = bpf_prog_test_run_opts(prog_fd, &topts); ASSERT_OK(err, "test_run"); @@ -30,11 +37,15 @@ static void test_function_entry(void) ASSERT_OK(err, "test_run"); + uprobe_trigger(); + ASSERT_EQ(skel->bss->test1_result, 1, "test1_result"); ASSERT_EQ(skel->bss->test2_result, 1, "test2_result"); ASSERT_EQ(skel->bss->test3_result, 1, "test3_result"); ASSERT_EQ(skel->bss->test4_result, 1, "test4_result"); ASSERT_EQ(skel->bss->test5_result, 1, "test5_result"); + ASSERT_EQ(skel->bss->test7_result, 1, "test7_result"); + ASSERT_EQ(skel->bss->test8_result, 1, "test8_result"); cleanup: get_func_ip_test__destroy(skel); diff --git a/tools/testing/selftests/bpf/progs/get_func_ip_test.c b/tools/testing/selftests/bpf/progs/get_func_ip_test.c index 8559e698b40d..8956eb78a226 100644 --- a/tools/testing/selftests/bpf/progs/get_func_ip_test.c +++ b/tools/testing/selftests/bpf/progs/get_func_ip_test.c @@ -1,8 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 -#include +#include "vmlinux.h" #include #include -#include char _license[] SEC("license") = "GPL"; @@ -83,3 +82,25 @@ int test6(struct pt_regs *ctx) test6_result = (const void *) addr == 0; return 0; } + +unsigned long uprobe_trigger; + +__u64 test7_result = 0; +SEC("uprobe//proc/self/exe:uprobe_trigger") +int BPF_UPROBE(test7) +{ + __u64 addr = bpf_get_func_ip(ctx); + + test7_result = (const void *) addr == (const void *) uprobe_trigger; + return 0; +} + +__u64 test8_result = 0; +SEC("uretprobe//proc/self/exe:uprobe_trigger") +int BPF_URETPROBE(test8, int ret) +{ + __u64 addr = bpf_get_func_ip(ctx); + + test8_result = (const void *) addr == (const void *) uprobe_trigger; + return 0; +} -- 2.41.0