[FYI][PATCH 1/1] tools headers UAPI: Sync arch prctl headers with the kernel sources
From: Arnaldo Carvalho de Melo
Date: Sat Nov 13 2021 - 08:57:33 EST
Em Sat, Nov 13, 2021 at 10:50:11AM -0300, Arnaldo Carvalho de Melo escreveu:
To pick the changes in this cset:
db8268df0983adc2 ("x86/arch_prctl: Add controls for dynamic XSTATE components")
This picks these new prctls:
$ tools/perf/trace/beauty/x86_arch_prctl.sh > /tmp/before
$ cp arch/x86/include/uapi/asm/prctl.h tools/arch/x86/include/uapi/asm/prctl.h
$ tools/perf/trace/beauty/x86_arch_prctl.sh > /tmp/after
$ diff -u /tmp/before /tmp/after
--- /tmp/before 2021-11-13 10:42:52.787308809 -0300
+++ /tmp/after 2021-11-13 10:43:02.295558837 -0300
@@ -6,6 +6,9 @@
[0x1004 - 0x1001]= "GET_GS",
[0x1011 - 0x1001]= "GET_CPUID",
[0x1012 - 0x1001]= "SET_CPUID",
+ [0x1021 - 0x1001]= "GET_XCOMP_SUPP",
+ [0x1022 - 0x1001]= "GET_XCOMP_PERM",
+ [0x1023 - 0x1001]= "REQ_XCOMP_PERM",
};
#define x86_arch_prctl_codes_2_offset 0x2001
$
With this 'perf trace' can translate those numbers into strings and use
the strings in filter expressions:
# perf trace -e prctl
0.000 ( 0.011 ms): DOM Worker/3722622 prctl(option: SET_NAME, arg2: 0x7f9c014b7df5) = 0
0.032 ( 0.002 ms): DOM Worker/3722622 prctl(option: SET_NAME, arg2: 0x7f9bb6b51580) = 0
5.452 ( 0.003 ms): StreamT~ns #30/3722623 prctl(option: SET_NAME, arg2: 0x7f9bdbdfeb70) = 0
5.468 ( 0.002 ms): StreamT~ns #30/3722623 prctl(option: SET_NAME, arg2: 0x7f9bdbdfea70) = 0
24.494 ( 0.009 ms): IndexedDB #556/3722624 prctl(option: SET_NAME, arg2: 0x7f562a32ae28) = 0
24.540 ( 0.002 ms): IndexedDB #556/3722624 prctl(option: SET_NAME, arg2: 0x7f563c6d4b30) = 0
670.281 ( 0.008 ms): systemd-userwo/3722339 prctl(option: SET_NAME, arg2: 0x564be30805c8) = 0
670.293 ( 0.002 ms): systemd-userwo/3722339 prctl(option: SET_NAME, arg2: 0x564be30800f0) = 0
^C#
This addresses these perf build warnings:
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/prctl.h' differs from latest version at 'arch/x86/include/uapi/asm/prctl.h'
diff -u tools/arch/x86/include/uapi/asm/prctl.h arch/x86/include/uapi/asm/prctl.h
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: Chang S. Bae <chang.seok.bae@xxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/arch/x86/include/uapi/asm/prctl.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/arch/x86/include/uapi/asm/prctl.h b/tools/arch/x86/include/uapi/asm/prctl.h
index 5a6aac9fa41f7b56..754a078568171451 100644
--- a/tools/arch/x86/include/uapi/asm/prctl.h
+++ b/tools/arch/x86/include/uapi/asm/prctl.h
@@ -10,6 +10,10 @@
#define ARCH_GET_CPUID 0x1011
#define ARCH_SET_CPUID 0x1012
+#define ARCH_GET_XCOMP_SUPP 0x1021
+#define ARCH_GET_XCOMP_PERM 0x1022
+#define ARCH_REQ_XCOMP_PERM 0x1023
+
#define ARCH_MAP_VDSO_X32 0x2001
#define ARCH_MAP_VDSO_32 0x2002
#define ARCH_MAP_VDSO_64 0x2003
--
2.31.1