tools headers UAPI: Sync linux/prctl.h with the kernel sources

To pick new prctl options introduced in:

  b507808ebce23561 ("mm: implement memory-deny-write-execute as a prctl")

That results in:

  $ diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h
  --- tools/include/uapi/linux/prctl.h	2022-06-20 17:54:43.884515663 -0300
  +++ include/uapi/linux/prctl.h	2023-03-03 11:18:51.090923569 -0300
  @@ -281,6 +281,12 @@
   # define PR_SME_VL_LEN_MASK		0xffff
   # define PR_SME_VL_INHERIT		(1 << 17) /* inherit across exec */

  +/* Memory deny write / execute */
  +#define PR_SET_MDWE			65
  +# define PR_MDWE_REFUSE_EXEC_GAIN	1
  +
  +#define PR_GET_MDWE			66
  +
   #define PR_SET_VMA		0x53564d41
   # define PR_SET_VMA_ANON_NAME		0

  $ tools/perf/trace/beauty/prctl_option.sh > before
  $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
  $ tools/perf/trace/beauty/prctl_option.sh > after
  $ diff -u before after
  --- before	2023-03-03 11:47:43.320013146 -0300
  +++ after	2023-03-03 11:47:50.937216229 -0300
  @@ -59,6 +59,8 @@
   	[62] = "SCHED_CORE",
   	[63] = "SME_SET_VL",
   	[64] = "SME_GET_VL",
  +	[65] = "SET_MDWE",
  +	[66] = "GET_MDWE",
   };
   static const char *prctl_set_mm_options[] = {
   	[1] = "START_CODE",
  $

Now users can do:

  # perf trace -e syscalls:sys_enter_prctl --filter "option==SET_MDWE||option==GET_MDWE"
^C#
  # trace -v -e syscalls:sys_enter_prctl --filter "option==SET_MDWE||option==GET_MDWE"
  New filter for syscalls:sys_enter_prctl: (option==65||option==66) && (common_pid != 5519 && common_pid != 3404)
^C#

And when these prctl options appears in a session, they will be
translated to the corresponding string.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZAI%2FAoPXb%2Fsxz1%2Fm@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index a5e06dcbba136d618c6dcf61f0cbb6e3bfe9ea2c..1312a137f7fb85e1b042139f7762b3bb9775fa8e 100644 (file)
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -281,6 +281,12 @@ struct prctl_mm_map {
 # define PR_SME_VL_LEN_MASK            0xffff
 # define PR_SME_VL_INHERIT             (1 << 17) /* inherit across exec */
 
+/* Memory deny write / execute */
+#define PR_SET_MDWE                    65
+# define PR_MDWE_REFUSE_EXEC_GAIN      1
+
+#define PR_GET_MDWE                    66
+
 #define PR_SET_VMA             0x53564d41
 # define PR_SET_VMA_ANON_NAME          0