linux/fprobe.h at 64ad6470c882fcaecfa4a1da96ea94de7ca0dc80 - linux - Nytegear Gitea

mirrors/linux

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-02-17 16:00:38 -05:00

Files

Hari Bathini 7cec88bfdd powerpc/fprobe: fix updated fprobe for function-graph tracer

Since commit 4346ba1604 ("fprobe: Rewrite fprobe on function-graph
tracer"), FPROBE depends on HAVE_FUNCTION_GRAPH_FREGS. With previous
patch adding HAVE_FUNCTION_GRAPH_FREGS for powerpc, FPROBE can be
enabled on powerpc. But with the commit b5fa903b7f ("fprobe: Add
fprobe_header encoding feature"), asm/fprobe.h header is needed to
define arch dependent encode/decode macros. The fprobe header MSB
pattern on powerpc is not 0xf. So, define FPROBE_HEADER_MSB_PATTERN
expected on powerpc.

Also, commit 762abbc0d0 ("fprobe: Use ftrace_regs in fprobe exit
handler") introduced HAVE_FTRACE_REGS_HAVING_PT_REGS for archs that
have pt_regs in ftrace_regs. Advertise that on powerpc to reuse
common definitions like ftrace_partial_regs().

Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Aditya Bodkhe <aditya.b1@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250916044035.29033-2-adityab1@linux.ibm.com

2025-09-16 16:13:00 +05:30

13 lines

291 B

C

Raw Blame History

 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PPC_FPROBE_H
 #define _ASM_PPC_FPROBE_H
 #include <asm-generic/fprobe.h>
 #ifdef CONFIG_64BIT
 #undef FPROBE_HEADER_MSB_PATTERN
 #define FPROBE_HEADER_MSB_PATTERN	(PAGE_OFFSET & ~FPROBE_HEADER_MSB_MASK)
 #endif
 #endif /* _ASM_PPC_FPROBE_H */