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* tools lib: Add bitmap_and functionJiri Olsa2016-08-021-0/+17
| | | | | | | | | | | | Add support to perform logical and on bitmaps. Code taken from kernel's include/linux/bitmap.h. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib: Add bitmap_scnprintf functionJiri Olsa2016-08-021-0/+10
| | | | | | | | | | | | | Add support to print bitmap list. Code mostly taken from kernel's bitmap_list_string. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-3-git-send-email-jolsa@kernel.org [ s/bitmap_snprintf/bitmap_scnprintf/g as it is a scnprintf wrapper, having the same semantics wrt return value ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib: Add bitmap_alloc functionJiri Olsa2016-08-021-0/+10
| | | | | | | | | | | | Adding bitmap_alloc function to dynamically allocate bitmap. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20160802113302.GA7479@krava Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Copy linux/{hash,poison}.h and check for driftArnaldo Carvalho de Melo2016-07-182-4/+192
| | | | | | | | | | | | | We were also using this directly from the kernel sources, the two last cases, fix it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-7o14xvacqcjc5llc7gvjjyl8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Copy the bitops files accessed from the kernel and check for driftArnaldo Carvalho de Melo2016-07-185-5/+188
| | | | | | | | | | | | copy some more kernel files accessed from tools/, check for drift. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-omz8xdyvvxgjiuqzwj6ecm6j@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Simplify BITS_PER_LONG definePeter Zijlstra2016-07-151-21/+2
| | | | | | | | | | | | | | | | | | | | | | | | Do it using (__CHAR_BIT__ * __SIZEOF_LONG__), simpler, works everywhere, reduces the complexity by ditching CONFIG_64BIT, that was being synthesized from yet another set of defines, which proved fragile, breaking the build on linux-next for no obvious reasons. Committer Note: Except on: gcc version 4.1.2 20080704 (Red Hat 4.1.2-55) Fallback to __WORDSIZE in that case... Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20160715072243.GP30154@twins.programming.kicks-ass.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Make "__always_inline" just "inline" on AndroidArnaldo Carvalho de Melo2016-07-141-0/+11
| | | | | | | | | | | | | | | | | | As the gcc there is producing tons of: "warning: always_inline function might not be inlinable" At least on android-ndk-r12/platforms/android-24/arch-arm, so, for the time being, use this big hammer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Chris Phlipot <cphlipot0@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-97l3eg3fnk5shmo4rsyyvj2t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Fix up BITS_PER_LONG settingArnaldo Carvalho de Melo2016-07-131-5/+19
| | | | | | | | | | | | | | | It was set based on CONFIG_64BIT, that is available only when using Kconfig, which we're working towards but not to the point of having this CONFIG variable set, so synthesize it from available compiler defined defines, __SIZEOF_LONG__ or, lacking that, __WORDSIZE. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-og5fmkr17856lhupacihwxvb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Work around BITS_PER_LONG related build failure in objtoolIngo Molnar2016-07-131-1/+3
| | | | | | | | | | | | | | | | | | The objtool build fails with the recent changes to the bits-per-long headers: tools/include/linux/bitops.h:12:0: error: "BITS_PER_LONG" redefined [-Werror] Which got introduced by: bb9707077b4e tools: Copy the bitsperlong.h files from the kernel Work it around for the time being. Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* tools: Copy the bitsperlong.h files from the kernelArnaldo Carvalho de Melo2016-07-124-0/+42
| | | | | | | | | | | | | | | We use it in bitops/__ffs.h and bitops/atomic.h, that we also got from the kernel, but were getting it from either newer systems that carry it in /usr/include, or from the kernel sources, that we decided not to touch from tools/ code. Fix it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-lwqvgbuitjmrdpjmjp6zqnyx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Copy uapi/linux/hw_breakpoint.h from the kernelArnaldo Carvalho de Melo2016-07-121-0/+30
| | | | | | | | | | | | | | | | To allow the build to complete on older systems, where those files are either not uptodate, lacking some recent additions or not present at all. And check if the copy drifts from the kernel. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-3jz31pz4nw526uko5da9e7o3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib bpf: Copy bpf.h and bpf_common.h from the kernelArnaldo Carvalho de Melo2016-07-122-0/+444
| | | | | | | | | | | | | | | | | | | | To allow the build to complete on older systems, where those files are either not uptodate, lacking some recent additions or not present at all. And check if the copy drifts from the kernel, as in this synthetic test: BUILD: Doing 'make -j4' parallel build Warning: tools/include/linux/bpf.h differs from kernel Warning: tools/include/linux/bpf_common.h differs from kernel Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-5plvi2gq4x469dcyybiu226q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf bench: Copy kernel files needed to build mem{cpy,set} x86_64 benchmarksArnaldo Carvalho de Melo2016-07-121-0/+9
| | | | | | | | | | | | | | We can't access kernel files directly from tools/, so copy the required bits, and make sure that we detect when the original files, in the kernel, gets modified. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-z7e76274ch5j4nugv048qacb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Add copy of perf_event.h to tools/include/linux/Arnaldo Carvalho de Melo2016-07-121-0/+983
| | | | | | | | | | | | | | | | | | | | We shouldn't use headers from the kernel sources directly, instead we should use the system's headers or in cases where that isn't possible, like with perf_event.h, where the introduction of kernel features such as perf_event_attr.{write_backwards,sample_max_stack} and PERF_EVENT_IOC_PAUSE_OUTPUT take some time to become available in /usr/include/linux/perf_event.h we need a copy. Do it and check for source code drift, emitting a warning when changes are detected. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-v6aks5un3s5pehory6f42nrl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib: Guard the strlcpy() header with __GLIBC__Arnaldo Carvalho de Melo2016-07-121-1/+1
| | | | | | | | | | | | | | | Better to whitelist it for libraries that require it (glibc) than blacklist it with the ones that don't (uclibc, musl libc, etc). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-52ih0m63a2n63tanpy6yj682@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Uninline scnprintf() and vscnprint()Arnaldo Carvalho de Melo2016-07-121-25/+3
| | | | | | | | | | | | | | They were in tools/include/linux/kernel.h, requiring that it in turn included stdio.h, which is way too heavy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-855h8olnkot9v0dajuee1lo3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Introduce str_error_r()Arnaldo Carvalho de Melo2016-07-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | The tools so far have been using the strerror_r() GNU variant, that returns a string, be it the buffer passed or something else. But that, besides being tricky in cases where we expect that the function using strerror_r() returns the error formatted in a provided buffer (we have to check if it returned something else and copy that instead), breaks the build on systems not using glibc, like Alpine Linux, where musl libc is used. So, introduce yet another wrapper, str_error_r(), that has the GNU interface, but uses the portable XSI variant of strerror_r(), so that users rest asured that the provided buffer is used and it is what is returned. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-d4t42fnf48ytlk8rjxs822tf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds2016-03-241-0/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "This tree contains various perf fixes on the kernel side, plus three hw/event-enablement late additions: - Intel Memory Bandwidth Monitoring events and handling - the AMD Accumulated Power Mechanism reporting facility - more IOMMU events ... and a final round of perf tooling updates/fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits) perf llvm: Use strerror_r instead of the thread unsafe strerror one perf llvm: Use realpath to canonicalize paths perf tools: Unexport some methods unused outside strbuf.c perf probe: No need to use formatting strbuf method perf help: Use asprintf instead of adhoc equivalents perf tools: Remove unused perf_pathdup, xstrdup functions perf tools: Do not include stringify.h from the kernel sources tools include: Copy linux/stringify.h from the kernel tools lib traceevent: Remove redundant CPU output perf tools: Remove needless 'extern' from function prototypes perf tools: Simplify die() mechanism perf tools: Remove unused DIE_IF macro perf script: Remove lots of unused arguments perf thread: Rename perf_event__preprocess_sample_addr to thread__resolve perf machine: Rename perf_event__preprocess_sample to machine__resolve perf tools: Add cpumode to struct perf_sample perf tests: Forward the perf_sample in the dwarf unwind test perf tools: Remove misplaced __maybe_unused perf list: Fix documentation of :ppp perf bench numa: Fix assertion for nodes bitfield ...
| * tools include: Copy linux/stringify.h from the kernelArnaldo Carvalho de Melo2016-03-231-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | There is code in tools/ that is directly including this file from the kernel, and this is verboten for a while, copy it so that the next csets can fix this situation. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-e0r3nks2uai020ndghvxv5qw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | tools: Copy hashtable.h into tools directoryJosh Poimboeuf2016-03-094-3/+155
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Copy hashtable.h from include/linux/tools.h. It's needed by objtool in the next patch in the series. Add some includes that it needs, and remove references to kernel-specific features like RCU and __read_mostly. Also change some if its dependency headers' includes to use quotes instead of brackets so gcc can find them. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris J Arges <chris.j.arges@canonical.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Pedro Alves <palves@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/be3bef72f6540d8a510515408119d968a0e18179.1457502970.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* tools: Make list.h self-sufficientJosh Poimboeuf2016-01-121-6/+747
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7f5f873c6a07 ("rculist: Use WRITE_ONCE() when deleting from reader-visible list") added the use of the WRITE_ONCE macro to the kernel version of list.h, which broke the stacktool build because the tools list.h includes the kernel list.h. Avoid this type of situation in the future and make list.h self-sufficient by copying the kernel list.h routines directly into tools list.h. This is a straight copy except for adjustments to the include statements and copying of the tools-specific list routines (list_del_range and list_for_each_from). Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris J Arges <chris.j.arges@canonical.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Pedro Alves <palves@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/59cdc19c6589d1b5ef43d83b0e2d5a4a40301374.1450442274.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/Arnaldo Carvalho de Melo2016-01-081-0/+68
| | | | | | | | | | | | | | | | So that lib/find_bit.c doesn't requires anything inside tools/perf/ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: George Spelvin <linux@horizon.com Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Wang Nan <wangnan0@huawei.com> Cc: Yury Norov <yury.norov@gmail.com> Link: http://lkml.kernel.org/n/tip-7lxe7jgohaac5faodndhdmvk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move strlcpy() from perf to tools/lib/string.cJosh Poimboeuf2015-12-161-0/+4
| | | | | | | | | | | | strlcpy() will be needed by the subcmd library. Move it to the shared tools/lib/string.c file which can be used by other tools. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/71e2804b973bf39ad3d3b9be10f99f2ea630be46.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Clone the kernel's strtobool functionWang Nan2015-11-181-0/+2
| | | | | | | | | | | | | | | | | | Copying it to tools/lib/string.c, the counterpart to the kernel's lib/string.c. This is preparation for enhancing BPF program configuration, which will allow config string like 'inlines=yes'. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1447675815-166222-6-git-send-email-wangnan0@huawei.com [ Copied it to tools/lib/string.c instead, to make it usable by other tools/ ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Adopt memdup() from tools/perf, moving it to tools/lib/string.cArnaldo Carvalho de Melo2015-11-181-0/+9
| | | | | | | | | | | | | | That will contain more string functions with counterparts, sometimes verbatim copies, in the kernel. Acked-by: Wang Nan <wangnan0@huawei.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-rah6g97kn21vfgmlramorz6o@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools include: Add compiler.h to list.hArnaldo Carvalho de Melo2015-11-111-0/+1
| | | | | | | | | | | | | | | | | list.h needs WRITE_ONCE() since 7f5f873c6a07 ("rculist: Use WRITE_ONCE() when deleting from reader-visible list") add it before including the kernel's list.h file. This fixes builds of 'make perf-tar-src-pkg' perf tool tarball builds, i.e. out of tree builds. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-e0rb8f7jwz0jn24ttyick9u6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools include: Fix strict-aliasing rules breakageJiri Olsa2015-10-131-8/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Vinson reported build breakage with gcc 4.4 due to strict-aliasing. CC util/annotate.o cc1: warnings being treated as errors util/annotate.c: In function ‘disasm__purge’: linux-next/tools/include/linux/compiler.h:66: error: dereferencing pointer ‘res.41’ does break strict-aliasing rules The reason is READ_ONCE/WRITE_ONCE code we took from kernel sources. They intentionaly break aliasing rules. While this is ok for kernel because it's built with -fno-strict-aliasing, it breaks perf which is build with -Wstrict-aliasing=3. Using extra __may_alias__ type to allow aliasing in this case. Reported-and-tested-by: Vinson Lee <vlee@twopensource.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Martin Liska <mliska@suse.cz> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Rabin Vincent <rabin@rab.in> Cc: linux-next@vger.kernel.org Link: http://lkml.kernel.org/r/20151013085214.GB2705@krava.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Fix shadowed declaration in err.hJiri Olsa2015-09-301-2/+2
| | | | | | | | | | | | | | | | | | | | The error variable breaks build on CentOS 6.7, due to collision with global error symbol: CC util/evlist.o cc1: warnings being treated as errors In file included from util/evlist.c:28: tools/include/linux/err.h: In function ‘ERR_PTR’: tools/include/linux/err.h:34: error: declaration of ‘error’ shadows a global declaration util/util.h:135: error: shadowed declaration is here Using 'error_' name instead to fix it. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/n/tip-i9mdgdbrgauy3fe76s9rd125@git.kernel.org Reported-by: Vinson Lee <vlee@twopensource.com> [ Use 'error_' instead of 'err' to, visually, not diverge too much from include/linux/err.h ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Add err.h with ERR_PTR PTR_ERR interfaceJiri Olsa2015-09-151-0/+49
| | | | | | | | | | | | | | | | | | | | Adding part of the kernel's <linux/err.h> interface: inline void * __must_check ERR_PTR(long error); inline long __must_check PTR_ERR(__force const void *ptr); inline bool __must_check IS_ERR(__force const void *ptr); It will be used to propagate error through pointers in following patches. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: Raphael Beamonte <raphael.beamonte@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1441615087-13886-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Copy linux/filter.h to tools/includeHe Kuang2015-09-021-0/+231
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch copies filter.h from include/linux/kernel.h to tools/include/linux/filter.h to enable other libraries to use macros in it, like libbpf which will be introduced by further patches. Currently, the filter.h copy only contains the useful macros needed by libbpf for not introducing too much dependence. tools/perf/MANIFEST is also updated for 'make perf-*-src-pkg'. One change: The 'imm' field of BPF_EMIT_CALL becomes ((FUNC) - BPF_FUNC_unspec) to suit user space code generator. Signed-off-by: He Kuang <hekuang@huawei.com> Cc: David Ahern <dsahern@gmail.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kaixu Xia <xiakaixu@huawei.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1440822125-52691-22-git-send-email-wangnan0@huawei.com Signed-off-by: Wang Nan <wangnan0@huawei.com> [ Removed stylistic changes, so that a diff to the original file gets reduced ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Restore export.hSasha Levin2015-08-251-0/+10
| | | | | | | | | | | | | Commit 3f735377b ("tools: Copy lib/rbtree.c to tools/lib/") has removed export.h, which was still in use by liblockdep. Restore it. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1440479985-6696-1-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* tools: Copy rbtree_augmented.h from the kernelArnaldo Carvalho de Melo2015-07-061-0/+245
| | | | | | | | | | | | | | | | | To complete the transitioning to not to share the same files with the kernel, also moving it from tools/perf/include/linux/ to tools/include/linux to make the whoke rbtree kit to other tools/ living codebases. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5bxyehixafckqm6ez25alnfo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Move rbtree.h from tools/perf/Arnaldo Carvalho de Melo2015-07-061-0/+104
| | | | | | | | | | | | | | | The previous step, copying the contents minus the rcupdate.h parts, was done as a minimal fix, now do the move from tools/perf/. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-52fllxtsgmtke66pmv98mcma@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Copy lib/rbtree.c to tools/lib/Arnaldo Carvalho de Melo2015-07-061-10/+0
| | | | | | | | | | | | | | | | | So that we can remove kernel specific stuff we've been stubbing out via a tools/include/linux/export.h that gets removed in this patch and to avoid breakages in the future like the one fixed recently where rcupdate.h started being used in rbtree.h. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-rxuzfsozpb8hv1emwpx06rm6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Adopt {READ,WRITE_ONCE} from the kernelArnaldo Carvalho de Melo2015-07-051-0/+58
| | | | | | | | | | | | | | | | | | | | | We need it to build rbtree.c after this cset: commit d72da4a4d973 Author: Peter Zijlstra <peterz@infradead.org> Date: Wed May 27 11:09:36 2015 +0930 rbtree: Make lockless searches non-fatal Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qlnzhezv5ddwst0w9fydju0y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Move tools/perf/util/include/linux/{list.h,poison.h} to tools/includeWang Nan2015-06-032-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves list.h from tools/perf/util/include/linux/list.h to tools/include/linux/list.h to enable other libraries use macros in it, like libbpf which will be introduced by further patches. Since list.h depend on poison.h, poison.h is also moved. Both file use relative path, so one '..' is removed for each header to make them suit for new directory. MANIFEST is also updated for 'make perf-*-src-pkg'. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kaixu Xia <xiakaixu@huawei.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1433144296-74992-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move linux/kernel.h to tools/includeWang Nan2015-06-021-0/+107
| | | | | | | | | | | | | | | | | | | | | | | | | This patch moves kernel.h from tools/perf/util/include/linux/kernel.h to tools/include/linux/kernel.h to enable other libraries use macros in it, like libbpf which will be introduced by further patches. MANIFEST is also updated for 'make perf-*-src-pkg'. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kaixu Xia <xiakaixu@huawei.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1433144296-74992-2-git-send-email-wangnan0@huawei.com [ Fixed up the ifdef guard to match other entries in tools/include/linux ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools include: add __aligned_u64 to types.h.Wang Nan2015-05-181-0/+4
| | | | | | | | | | | | | | | | | | | | | | Following patches will introduce linux/bpf.h to a new libbpf library, which requires definition of __aligned_u64. This patch add it to the common types.h for tools. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: pi3orama@163.com Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/r/1431676290-1230-5-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools include: Add basic atomic.h implementation from the kernel sourcesArnaldo Carvalho de Melo2015-05-084-0/+83
| | | | | | | | | | | | | | | | | | | Uses the arch/x86/ kernel code for x86_64/i386, fallbacking to a gcc intrinsics implementation that has been tested in at least sparc64. Will be used for reference counting in tools/perf. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-knfpjowhgyh6x4z0kfuk389j@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move generic barriers out of perf-sys.hArnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | | | | We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. The parisc stuff was just using the asm-generic/barrier.h, no need to introduce a tools/arch/parisc/ tree just yet. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-tfas9bs1gje0hfsvhqgrosd6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move tile barrier.h stuff to tools/arch/tile/include/asm/barrier.hArnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-jwcs4r1lo0ld8a4ricbe0zug@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move mips barrier.h stuff to tools/arch/mips/include/asm/barrier.hArnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | | | We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c5a8m8lbjuy0agep6giykxbz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move xtensa barrier.h stuff to ↵Arnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | | | tools/arch/xtensa/include/asm/barrier.h We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lp68dspbtjcwbpzd7x5c6zp5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move arm(64) barrier.h stuff to ↵Arnaldo Carvalho de Melo2015-05-081-0/+4
| | | | | | | | | | | | | | | | | | tools/arch/arm*/include/asm/barrier.h We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-cgfhreaejd7ohitdjccu9k2o@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move ia64 barrier.h stuff to tools/arch/ia64/include/asm/barrier.hArnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4op0qdukegrdumyefz4icxk0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move alpha barrier.h stuff to tools/arch/alpha/include/asm/barrier.hArnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vs2plxuph0ne3zcupijgjy9z@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move sparc barrier.h stuff to tools/arch/sparc/include/asm/barrier.hArnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f0d04b9x63grt30nahpw9ei0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move sh barrier.h stuff to tools/arch/sh/include/asm/barrier.hArnaldo Carvalho de Melo2015-05-081-0/+2
| | | | | | | | | | | | | | | | We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6xqb97k782wqp1r3v6jqayki@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools: Adopt asm-generic/barrier.hArnaldo Carvalho de Melo2015-05-081-0/+44
| | | | | | | | | | | | | | | | From the kernel's include/asm-generic/barrier.h, will be used by the sh barrier.h implementation. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-emjznw0rjsmfyx2wfixss1gv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move barrier() definition to tools/include/linux/compiler.hArnaldo Carvalho de Melo2015-05-081-0/+4
| | | | | | | | | | | | | | | | | To make it generally accessible by other tools/ projects, also will be used in the tools/arch/*/include/asm/barrier.h files that are being introduced now. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qnjdqwu3vcnt14vqmr6wu788@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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