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Subject[PATCH v4 06/16] ARM: Disable jprobes test when built into thumb-mode kernel
Date
From: "Jon Medhurst (Tixy)" <tixy@linaro.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@linaro.org>
Signed-off-by: David A. Long <dave.long@linaro.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


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