linux-kernel - [PATCH 1/1] tools headers x86: Sync table due to introducion of uprobe syscall

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Message-ID: <aQYxWEtq-UE0ALFU@x1>
Date: Sat, 1 Nov 2025 13:12:08 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Jiri Olsa <jolsa@...nel.org>, Peter Zijlstra <peterz@...radead.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Ian Rogers <irogers@...gle.com>,
	James Clark <james.clark@...aro.org>,
	Namhyung Kim <namhyung@...nel.org>
Subject: [PATCH 1/1] tools headers x86: Sync table due to introducion of
 uprobe syscall

tldr; Just FYI, I'm carrying this on the perf tools tree.

Full explanation:

There used to be no copies, with tools/ code using kernel headers
directly. From time to time tools/perf/ broke due to legitimate kernel
hacking. At some point Linus complained about such direct usage. Then we
adopted the current model.

See further details at:

 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/include/uapi/README

To pick the changes in this cset:

  56101b69c9190667 ("uprobes/x86: Add uprobe syscall to speed up uprobe")

That add support for this new 'uprobe' syscall in tools such as 'perf trace'.

Now it is possible to do a system wide 'perf trace' to look if this new
syscall is being used:

  root@...ber:~# perf trace -v -e uprobe
  <SNIP>
  event qualifier tracepoint filter: (common_pid != 33989) && (id == 336)
  ^C
  root@...ber#

  $ grep -w uprobe tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
  336	common	uprobe			sys_uprobe
  $

This addresses these perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Please see tools/include/uapi/README for further details.

Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
index 92cf0fe2291eb99b..ced2a1deecd7ce08 100644
--- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
@@ -345,6 +345,7 @@
 333	common	io_pgetevents		sys_io_pgetevents
 334	common	rseq			sys_rseq
 335	common	uretprobe		sys_uretprobe
+336	common	uprobe			sys_uprobe
 # don't use numbers 387 through 423, add new calls after the last
 # 'common' entry
 424	common	pidfd_send_signal	sys_pidfd_send_signal
-- 
2.51.0