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From: Wang Han <wanghan@linux.alibaba.com>
To: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>,
	linux-riscv@lists.infradead.org, Oleg Nesterov <oleg@redhat.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	James Clark <james.clark@linaro.org>,
	Josh Poimboeuf <jpoimboe@kernel.org>,
	Jiri Kosina <jikos@kernel.org>, Miroslav Benes <mbenes@suse.cz>,
	Petr Mladek <pmladek@suse.com>,
	Joe Lawrence <joe.lawrence@redhat.com>,
	Shuah Khan <shuah@kernel.org>,
	oliver.yang@linux.alibaba.com, xueshuai@linux.alibaba.com,
	zhuo.song@linux.alibaba.com, jkchen@linux.alibaba.com,
	Marcos Paulo de Souza <mpdesouza@suse.com>,
	linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
	linux-perf-users@vger.kernel.org, live-patching@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Subject: [PATCH v4 RESEND 7/7] selftests/livepatch: Add RISC-V syscall wrapper prefix
Date: Mon, 29 Jun 2026 15:27:13 +0800	[thread overview]
Message-ID: <20260629072713.3273743-8-wanghan@linux.alibaba.com> (raw)
In-Reply-To: <20260629072713.3273743-1-wanghan@linux.alibaba.com>

The syscall livepatch selftest resolves and patches a syscall wrapper
symbol. To use that test for RISC-V livepatch validation, add the
RISC-V FN_PREFIX definition for ARCH_HAS_SYSCALL_WRAPPER.

Without this macro, the syscall livepatch selftest cannot resolve the
RISC-V target symbol, and the syscall-related livepatch test fails on
RISC-V.

Reviewed-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Wang Han <wanghan@linux.alibaba.com>
---
 .../testing/selftests/livepatch/test_modules/test_klp_syscall.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
index 08aacc0e14de..9baa2a5f84c9 100644
--- a/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
@@ -24,6 +24,8 @@
     #define FN_PREFIX __s390x_
   #elif defined(__aarch64__)
     #define FN_PREFIX __arm64_
+  #elif defined(__riscv)
+    #define FN_PREFIX __riscv_
   #elif defined(__powerpc__)
     #define FN_PREFIX
   #else
-- 
2.43.0

WARNING: multiple messages have this Message-ID (diff)
From: Wang Han <wanghan@linux.alibaba.com>
To: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>,
	linux-riscv@lists.infradead.org, Oleg Nesterov <oleg@redhat.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	James Clark <james.clark@linaro.org>,
	Josh Poimboeuf <jpoimboe@kernel.org>,
	Jiri Kosina <jikos@kernel.org>, Miroslav Benes <mbenes@suse.cz>,
	Petr Mladek <pmladek@suse.com>,
	Joe Lawrence <joe.lawrence@redhat.com>,
	Shuah Khan <shuah@kernel.org>,
	oliver.yang@linux.alibaba.com, xueshuai@linux.alibaba.com,
	zhuo.song@linux.alibaba.com, jkchen@linux.alibaba.com,
	Marcos Paulo de Souza <mpdesouza@suse.com>,
	linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
	linux-perf-users@vger.kernel.org, live-patching@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Subject: [PATCH v4 RESEND 7/7] selftests/livepatch: Add RISC-V syscall wrapper prefix
Date: Mon, 29 Jun 2026 15:27:13 +0800	[thread overview]
Message-ID: <20260629072713.3273743-8-wanghan@linux.alibaba.com> (raw)
In-Reply-To: <20260629072713.3273743-1-wanghan@linux.alibaba.com>

The syscall livepatch selftest resolves and patches a syscall wrapper
symbol. To use that test for RISC-V livepatch validation, add the
RISC-V FN_PREFIX definition for ARCH_HAS_SYSCALL_WRAPPER.

Without this macro, the syscall livepatch selftest cannot resolve the
RISC-V target symbol, and the syscall-related livepatch test fails on
RISC-V.

Reviewed-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Wang Han <wanghan@linux.alibaba.com>
---
 .../testing/selftests/livepatch/test_modules/test_klp_syscall.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
index 08aacc0e14de..9baa2a5f84c9 100644
--- a/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
@@ -24,6 +24,8 @@
     #define FN_PREFIX __s390x_
   #elif defined(__aarch64__)
     #define FN_PREFIX __arm64_
+  #elif defined(__riscv)
+    #define FN_PREFIX __riscv_
   #elif defined(__powerpc__)
     #define FN_PREFIX
   #else
-- 
2.43.0

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

  parent reply	other threads:[~2026-06-29  7:28 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-29  7:27 [PATCH v4 RESEND 0/7] riscv: Add reliable stack unwinding for livepatch Wang Han
2026-06-29  7:27 ` Wang Han
2026-06-29  7:27 ` [PATCH v4 RESEND 1/7] riscv: stacktrace: Add frame record metadata Wang Han
2026-06-29  7:27   ` Wang Han
2026-07-08  7:59   ` Shuai Xue
2026-07-08  7:59     ` Shuai Xue
2026-06-29  7:27 ` [PATCH v4 RESEND 2/7] riscv: stacktrace: disable KASAN and KCOV instrumentation for stacktrace.o Wang Han
2026-06-29  7:27   ` Wang Han
2026-07-08  8:07   ` Shuai Xue
2026-07-08  8:07     ` Shuai Xue
2026-06-29  7:27 ` [PATCH v4 RESEND 3/7] riscv: ftrace: always preserve s0 in dynamic ftrace register frame Wang Han
2026-06-29  7:27   ` Wang Han
2026-06-29  7:27 ` [PATCH v4 RESEND 4/7] riscv: stacktrace: introduce stack-bound tracking helpers Wang Han
2026-06-29  7:27   ` Wang Han
2026-06-29  7:42   ` sashiko-bot
2026-07-08  6:59   ` Shuai Xue
2026-07-08  6:59     ` Shuai Xue
2026-06-29  7:27 ` [PATCH v4 RESEND 5/7] riscv: stacktrace: switch to frame-pointer based unwinder Wang Han
2026-06-29  7:27   ` Wang Han
2026-07-08  8:21   ` Shuai Xue
2026-07-08  8:21     ` Shuai Xue
2026-06-29  7:27 ` [PATCH v4 RESEND 6/7] riscv: Kconfig: enable HAVE_RELIABLE_STACKTRACE and HAVE_LIVEPATCH Wang Han
2026-06-29  7:27   ` Wang Han
2026-06-29  7:27 ` Wang Han [this message]
2026-06-29  7:27   ` [PATCH v4 RESEND 7/7] selftests/livepatch: Add RISC-V syscall wrapper prefix Wang Han

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