linux-kernel - [PATCH] selftests/ftrace: update kprobe syntax error test for ppc64le

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Message-ID: <20241101191925.1550493-1-hbathini@linux.ibm.com>
Date: Sat,  2 Nov 2024 00:49:25 +0530
From: Hari Bathini <hbathini@...ux.ibm.com>
To: Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org
Cc: Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        "Naveen N. Rao" <naveen@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        linux-trace-kernel@...r.kernel.org,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>
Subject: [PATCH] selftests/ftrace: update kprobe syntax error test for ppc64le

For ppc64le, depending on the kernel configuration used, offset 16
from function start address can also be considered function entry.
Update the test case to accommodate such configurations.

Signed-off-by: Hari Bathini <hbathini@...ux.ibm.com>
---
 .../selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
index a16c6a6f6055..c03b94cc5784 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
@@ -111,7 +111,11 @@ check_error 'p vfs_read $arg* ^$arg*'		# DOUBLE_ARGS
 if !grep -q 'kernel return probes support:' README; then
 check_error 'r vfs_read ^$arg*'			# NOFENTRY_ARGS
 fi
+if [ "$(uname -m)" = "ppc64le" ]; then
+check_error 'p vfs_read+20 ^$arg*'		# NOFENTRY_ARGS
+else
 check_error 'p vfs_read+8 ^$arg*'		# NOFENTRY_ARGS
+fi
 check_error 'p vfs_read ^hoge'			# NO_BTFARG
 check_error 'p kfree ^$arg10'			# NO_BTFARG (exceed the number of parameters)
 check_error 'r kfree ^$retval'			# NO_RETVAL
-- 
2.47.0