linux-kernel - [PATCH v5 06/16] ARM: Disable jprobes test when built into thumb-mode kernel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1390507559-4697-7-git-send-email-dave.long@linaro.org>
Date:	Thu, 23 Jan 2014 15:05:49 -0500
From:	David Long <dave.long@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>
Cc:	Rabin Vincent <rabin@....in>,
	"Jon Medhurst (Tixy)" <tixy@...aro.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
	<davem@...emloft.net>, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org
Subject: [PATCH v5 06/16] ARM: Disable jprobes test when built into thumb-mode kernel

From: "Jon Medhurst (Tixy)" <tixy@...aro.org>

For now the jprobes tests fail on ARM for when built into a kernel compiled
in thumb mode. They work fine for ARM kernels, and when built as a loadable
module.

Signed-off-by: "Jon Medhurst (Tixy)" <tixy@...aro.org>
Signed-off-by: David A. Long <dave.long@...aro.org>
---
 arch/arm/kernel/kprobes-test.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/kernel/kprobes-test.c b/arch/arm/kernel/kprobes-test.c
index 0cd63d0..65230b2 100644
--- a/arch/arm/kernel/kprobes-test.c
+++ b/arch/arm/kernel/kprobes-test.c
@@ -221,6 +221,7 @@ static int pre_handler_called;
 static int post_handler_called;
 static int jprobe_func_called;
 static int kretprobe_handler_called;
+static int tests_failed;
 
 #define FUNC_ARG1 0x12345678
 #define FUNC_ARG2 0xabcdef
@@ -457,6 +458,13 @@ static int run_api_tests(long (*func)(long, long))
 
 	pr_info("    jprobe\n");
 	ret = test_jprobe(func);
+#if defined(CONFIG_THUMB2_KERNEL) && !defined(MODULE)
+	if (ret == -EINVAL) {
+		pr_err("FAIL: Known longtime bug with jprobe on Thumb kernels");
+		tests_failed = ret;
+		ret = 0;
+	}
+#endif
 	if (ret < 0)
 		return ret;
 
@@ -1667,6 +1675,8 @@ static int __init run_all_tests(void)
 
 out:
 	if (ret == 0)
+		ret = tests_failed;
+	if (ret == 0)
 		pr_info("Finished kprobe tests OK\n");
 	else
 		pr_err("kprobe tests failed\n");
-- 
1.8.1.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/