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| author | Sven Schnelle <svens@linux.ibm.com> | 2026-09-09 11:29:53 +0200 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2026-09-10 08:43:35 +0900 |
| commit | d22c3e0088e85be8131f7a9283f759cdbb20726d (patch) | |
| tree | 9668df2aa27b26f850d3ba5ba1287e443803675c /include/asm-generic/kprobes.h | |
| download | linux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.tar.gz linux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.zip | |
selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tcgrafted
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 <svens@linux.ibm.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'include/asm-generic/kprobes.h')
| -rw-r--r-- | include/asm-generic/kprobes.h | 26 |
1 files changed, 26 insertions, 0 deletions
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 */ |