From d22c3e0088e85be8131f7a9283f759cdbb20726d Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 9 Sep 2026 11:29:53 +0200 Subject: selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle Reviewed-by: Steven Rostedt Signed-off-by: Masami Hiramatsu (Google) --- include/asm-generic/kprobes.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 include/asm-generic/kprobes.h (limited to 'include/asm-generic/kprobes.h') diff --git a/include/asm-generic/kprobes.h b/include/asm-generic/kprobes.h new file mode 100644 index 000000000..16f16963d --- /dev/null +++ b/include/asm-generic/kprobes.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_GENERIC_KPROBES_H +#define _ASM_GENERIC_KPROBES_H + +#if defined(__KERNEL__) && !defined(__ASSEMBLER__) +#ifdef CONFIG_KPROBES +/* + * Blacklist ganerating macro. Specify functions which is not probed + * by using this macro. + */ +# define __NOKPROBE_SYMBOL(fname) \ +static unsigned long __used \ + __section("_kprobe_blacklist") \ + _kbl_addr_##fname = (unsigned long)fname; +# define NOKPROBE_SYMBOL(fname) __NOKPROBE_SYMBOL(fname) +/* Use this to forbid a kprobes attach on very low level functions */ +# define __kprobes notrace __section(".kprobes.text") +# define nokprobe_inline __always_inline +#else +# define NOKPROBE_SYMBOL(fname) +# define __kprobes +# define nokprobe_inline inline +#endif +#endif /* defined(__KERNEL__) && !defined(__ASSEMBLER__) */ + +#endif /* _ASM_GENERIC_KPROBES_H */ -- cgit v1.3.1