From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Andrei Vagin <avagin@openvz.org>
Subject: [PATCH 13/23] tools headers UAPI: Sync sched.h with the kernel
Date: Fri, 14 Feb 2020 16:10:47 -0300 [thread overview]
Message-ID: <20200214191057.26266-14-acme@kernel.org> (raw)
In-Reply-To: <20200214191057.26266-1-acme@kernel.org>
From: Arnaldo Carvalho de Melo <acme@redhat.com>
To get the changes in:
769071ac9f20 ("ns: Introduce Time Namespace")
Silencing this tools/perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h'
diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.h
Which enables 'perf trace' to decode the CLONE_NEWTIME bit in the
'flags' argument to the clone syscalls.
Example of clone flags being decoded:
[root@quaco ~]# perf trace -e clone*
0.000 qemu-system-x8/23923 clone(clone_flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, newsp: 0x7f0dad7f9870, parent_tidptr: 0x7f0dad7fa9d0, child_tidptr: 0x7f0dad7fa9d0, tls: 0x7f0dad7fa700) = 6806 (qemu-system-x86)
? qemu-system-x8/6806 ... [continued]: clone()) = 0
^C[root@quaco ~]#
At some point this should enable things like:
# perf trace -e 'clone*/clone_flags&NEWTIME/'
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrei Vagin <avagin@openvz.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/include/uapi/linux/sched.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools/include/uapi/linux/sched.h b/tools/include/uapi/linux/sched.h
index 4a0217832464..2e3bc22c6f20 100644
--- a/tools/include/uapi/linux/sched.h
+++ b/tools/include/uapi/linux/sched.h
@@ -36,6 +36,12 @@
/* Flags for the clone3() syscall. */
#define CLONE_CLEAR_SIGHAND 0x100000000ULL /* Clear any signal handler and reset to SIG_DFL. */
+/*
+ * cloning flags intersect with CSIGNAL so can be used with unshare and clone3
+ * syscalls only:
+ */
+#define CLONE_NEWTIME 0x00000080 /* New time namespace */
+
#ifndef __ASSEMBLY__
/**
* struct clone_args - arguments for the clone3 syscall
--
2.21.1
next prev parent reply other threads:[~2020-02-14 19:10 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-14 19:10 [GIT PULL] perf/urgent improvements and fixes Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 01/23] perf stat: Don't report a null stalled cycles per insn metric Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 02/23] perf symbols: Update the list of kernel idle symbols Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 03/23] perf symbols: Convert symbol__is_idle() to use strlist Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 04/23] tools include UAPI: Sync x86's syscalls_64.tbl, generic unistd.h and fcntl.h to pick up openat2 and pidfd_getfd Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 05/23] perf maps: Mark module DSOs with kernel type Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 06/23] perf maps: Mark ksymbol " Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 07/23] perf maps: Fix map__clone() for struct kmap Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 08/23] perf maps: Move kmap::kmaps setup to maps__insert() Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 09/23] tools headers UAPI: Sync copy of arm64's asm/unistd.h with the kernel sources Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 10/23] tools headers UAPI: Sync prctl.h " Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 11/23] perf beauty prctl: Export the 'options' strarray Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 12/23] perf trace: Resolve prctl's 'option' arg strings to numbers Arnaldo Carvalho de Melo
2020-02-14 19:10 ` Arnaldo Carvalho de Melo [this message]
2020-02-14 19:10 ` [PATCH 14/23] tools headers uapi: Sync linux/fscrypt.h with the kernel sources Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 15/23] tools headers UAPI: Sync drm/i915_drm.h " Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 16/23] perf tools: Add arm64 version of get_cpuid() Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 17/23] tools headers UAPI: Sync asm-generic/mman-common.h with the kernel Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 18/23] tools include UAPI: Sync sound/asound.h copy Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 19/23] tools headers x86: Sync disabled-features.h Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 20/23] tools arch x86: Sync asm/cpufeatures.h with the kernel sources Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 21/23] tools headers kvm: Sync kvm headers " Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 22/23] tools headers kvm: Sync linux/kvm.h " Arnaldo Carvalho de Melo
2020-02-14 19:10 ` [PATCH 23/23] perf llvm: Fix script used to obtain kernel make directives to work with new kbuild Arnaldo Carvalho de Melo
2020-02-15 8:36 ` [GIT PULL] perf/urgent improvements and fixes Ingo Molnar
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