We no longer need the 'compressed' argument, because all
current users use 'NULL' for it.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-d72q2s7ggbmy2yzhumux4zzw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Replacing the current parsing code with kmod_path__parse function call.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-r9mpbbgkp39wp1cdmv13ddq0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Replacing the file name parsing with kmod_path__parse
and moving the dso update into new separate function.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-q0ed76ajcyoaofotntrg5sla@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
User visible:
- Bash completion for subcommands (Yunlong Song)
- Allow annotating entries in callchains in the hists browser (top/report).
TODO: give some visual cue to what entries in callchains have samples and thus
can be annotated and/or allow showing the source code for functions without
samples (Arnaldo Carvalho de Melo)
- Don't allow empty argument for '-t' in perf report, fixing segfault (Wang Nan)
Infrastructure:
- Prep work for moving the perf feature tests build system to tools/build (Jiri Olsa)
- Fix perf-read-vdsox32 not building and lib64 install dir (H.J. Lu)
- ARM64: fix building error and eh/debug frame offset cache fixes (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
- Bash completion for subcommands (Yunlong Song)
- Allow annotating entries in callchains in the hists browser (top/report).
TODO: give some visual cue to what entries in callchains have samples and thus
can be annotated and/or allow showing the source code for functions without
samples (Arnaldo Carvalho de Melo)
- Don't allow empty argument for '-t' in perf report, fixing segfault (Wang Nan)
Infrastructure:
- Prep work for moving the perf feature tests build system to tools/build (Jiri Olsa)
- Fix perf-read-vdsox32 not building and lib64 install dir (H.J. Lu)
- ARM64: fix building error and eh/debug frame offset cache fixes (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Using kmod_path__parse to get the module name and update the dso short
name within machine__new_dso function.
This way it's done only first time when dso is created, unlike the
current way when we update it all the time we process memory map of the
kernel module.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-8gjmt1ggf5ls1xkk7qi2ko4k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Separate the dso object addition and update when adding new kernel
module.
Currently we update dso's symtab_type any time we find it in the list,
because we can't distinguish between new and found dso from
__dsos__findnew function.
Adding machine__module_dso that separates finding and adding new dso
objects, so there's no superfluous update of dso.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-uvqgs5tyq4wssnq6fm43hgvk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Separate the creation of new dso object and its addition to the dsos
list. It will be used in following patch.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-8j43jod97fdt5dwdsushwwae@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Provides united way of parsing kernel module path
into several components.
The new kmod_path__parse function and few defines:
int __kmod_path__parse(struct kmod_path *m, const char *path,
bool alloc_name, bool alloc_ext);
#define kmod_path__parse(__m, __p) __kmod_path__parse(__m, __p, false, false)
#define kmod_path__parse_name(__m, __p) __kmod_path__parse(__m, __p, true , false)
#define kmod_path__parse_ext(__m, __p) __kmod_path__parse(__m, __p, false, true)
parse kernel module @path and updates @m argument like:
@comp - true if @path contains supported compression suffix,
false otherwise
@kmod - true if @path contains '.ko' suffix in right position,
false otherwise
@name - if (@alloc_name && @kmod) is true, it contains strdup-ed base name
of the kernel module without suffixes, otherwise strudup-ed
base name of @path
@ext - if (@alloc_ext && @comp) is true, it contains strdup-ed string
the compression suffix
It returns 0 if there's no strdup error, -ENOMEM otherwise.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9t6eqg8j610r94l743hkntiv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In short, Fedora compresses kernel modules now (since version 21) with
lzma compression.
Adding lzma decompress support into the dso.c:compressions array
introduced by Namhyung earlier.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-2glp65kdtbrk0gblmirsjsnt@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Will be used to decompress 'xz' objects. The check detects
the liblzma.so devel library normally delivered by xz package.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Move the calls that frees the resources allocated for a struct format_field to
a separate routine.
Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1426790181-19118-1-git-send-email-dsahern@gmail.com
[ Split this part from a larger patch, added pevent_ prefix as requested by Steven ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Now that we can annotate entries in a callchain, show which ones have an
associated symbol and samples, by adding a right arrow just before the
symbol name when in verbose mode.
To toggle verbose mode press 'V'.
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: Mike Galbraith <efault@gmx.de>
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-d2rf1p3h5gdp7hdl2gf2bozl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Currently the code skips the first field with the expectation that it is 'nr'.
But older kernels do not have the 'nr' field:
field:int nr; offset:8; size:4; signed:1;
Change perf-trace to drop the field if it exists after parsing the format file.
This fixes the off-by-one problem with older kernels (e.g., RHEL6). e.g,
perf-trace shows this for write:
1.515 ( 0.006 ms): dd/4245 write(buf: 2</dev/pts/0>, count: 140733837536224 ) = 26
where 2 is really the fd, the huge number is really the buf address, etc. With
this patch you get the more appropriate:
1.813 ( 0.003 ms): dd/6330 write(fd: 2</dev/pts/0>, buf: 0x7fff22fc81f0, count: 25) = 25
Based-on-a-patch-by: David Ahern <dsahern@gmail.com>
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: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-gvpdave4u2yq2jnzbcdznpvf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Moving feature checks code under tools/build directory.
Changing also $feature_dir to point to new feature directory location
and perf Makefiles to include Makefile.feature from new location.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-3lamtb30dhf4wo99y1n8kxg0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Putting feature checks directory into $feature_dir, so it's easy to
configure when we move it to bools/build later.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-sq2nsds6uk93372iyxcqcf6q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Move feature related code into separate makefile. The new
Makefile.feature is included from config/Makefile. It will be moved
later into tools/build.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-kj76wphg05x83n6d5ff85ybx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
We have 2 feature_check functions, which conflict with each other.
Fixing it by renaming the latter to feature_display_check.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-wmyccro6qeffseforipu5kcl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The intent of the -s/--summary-only option is to just show a summary of
the system calls and statistics without any of the individual events.
Commit e596663ebb broke that by showing the interrupted lines:
perf trace -i perf.data -s
...
0.741 ( 0.000 ms): sleep/31316 fstat(fd: 4, statbuf: 0x7ffc75ceb830 ) ...
0.744 ( 0.000 ms): sleep/31316 mmap(len: 100244, prot: READ, flags: PRIVATE, fd: 4 ) ...
0.747 ( 0.000 ms): perf/31315 write(fd: 3, buf: 0x7d4bb0, count: 8 ) ...
...
Fix by checking for the summary only option.
Signed-off-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1426789383-19023-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Perf tries to find probe function addresses from map when debuginfo
could not be found.
To the first added function, the value of ref_reloc_sym was set in
maps__set_kallsyms_ref_reloc_sym() and can be obtained from
host_machine->kmaps->maps. After that, new maps are added to
host_machine->kmaps->maps in dso__load_kcore(), all these new added maps
do not have a valid ref_reloc_sym.
When adding a second function, get_target_map() may get a map without
valid ref_reloc_sym, and raise the error "Relocated base symbol is not
found".
Fix this by using kernel_get_ref_reloc_sym() to get ref_reloc_sym.
This problem can be reproduced as following:
$ perf probe --add='sys_write' --add='sys_open'
Relocated base symbol is not found!
Error: Failed to add events.
After this patch:
$ perf probe --add='sys_write' --add='sys_open'
Added new event:
probe:sys_write (on sys_write)
You can now use it in all perf tools, such as:
perf record -e probe:sys_write -aR sleep 1
Added new event:
probe:sys_open (on sys_open)
You can now use it in all perf tools, such as:
perf record -e probe:sys_open -aR sleep 1
Signed-off-by: He Kuang <hekuang@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426816616-2394-1-git-send-email-hekuang@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
They are all auto-generated files during the perf building.
Before this patch:
$ git status
Untracked files:
(use "git add <file>..." to include in what will be committed)
config/feature-checks/test-all.make.output
config/feature-checks/test-backtrace.make.output
config/feature-checks/test-bionic.make.output
config/feature-checks/test-dwarf.make.output
config/feature-checks/test-fortify-source.make.output
config/feature-checks/test-glibc.make.output
config/feature-checks/test-gtk2-infobar.make.output
config/feature-checks/test-gtk2.make.output
config/feature-checks/test-libaudit.make.output
config/feature-checks/test-libbabeltrace.make.output
config/feature-checks/test-libbfd.make.output
config/feature-checks/test-libdw-dwarf-unwind.make.output
config/feature-checks/test-libelf-getphdrnum.make.output
config/feature-checks/test-libelf-mmap.make.output
config/feature-checks/test-libelf.make.output
config/feature-checks/test-libnuma.make.output
config/feature-checks/test-libperl.make.output
config/feature-checks/test-libpython-version.make.output
config/feature-checks/test-libpython.make.output
config/feature-checks/test-libslang.make.output
config/feature-checks/test-libunwind.make.output
config/feature-checks/test-pthread-attr-setaffinity-np.make.output
config/feature-checks/test-stackprotector-all.make.output
config/feature-checks/test-sync-compare-and-swap.make.output
config/feature-checks/test-timerfd.make.output
config/feature-checks/test-zlib.make.output
After this patch:
$ git status
nothing to commit, working directory clean
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426821638-11227-3-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Since commit 4ae61202b3 ("perf build: Rename PERF-FEATURES into
FEATURE-DUMP") renames PERF-FEATURES into FEATURE-DUMP, the .gitignore
file should also do this thing for consistency.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426821638-11227-2-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Both 'perf diff' and 'perf mem' have 'field-separator' option, which
causes segfault if passed with empty string. This patch uses previously
introduced 'OPT_STRING_NOEMPTY' option macro to prevent fault.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: pi3orama@163.com
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/1426820272-23302-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
const char *name, bool is_kallsyms, bool is_vdso)
{
...
if (access(filename, F_OK)) {
^--------------------------------------------------------- [1]
if (is_kallsyms) {
if (copyfile("/proc/kallsyms", filename))
goto out_free;
} else if (link(realname, filename) && copyfile(name, filename))
^-----------------------------^------------- [2]
\------------ [3]
goto out_free;
}
...
When multiple instances of perf record get to [1] at more or less same time and
run access() one or more may get failure because the file does not exist yet
(since the first instance did not have chance to link it yet).
At this point the race moves to link() at [2] where first thread to get
there links file and goes on but second one gets -EEXIST so it runs
copyfile [3] which truncates the file.
reproducer:
rm -rf /root/.debug
for cpu in $(awk '/processor/ {print $3}' /proc/cpuinfo); do
perf record -a -v -T -F 1000 -C $cpu \
-o perf-${cpu}.data sleep 5 2> /dev/null &
done
wait
and simply search for empty files by:
find /lib/modules/`uname -r`/kernel/* -size 0
Signed-off-by: Milos Vyletel <milos@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1426847846-11112-1-git-send-email-milos@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Without this patch, perf report cause segfault if pass "" as '-t':
$ perf report -t ""
# To display the perf.data header info, please use --header/--header-only options.
#
# Samples: 37 of event 'syscalls:sys_enter_write'
# Event count (approx.): 37
#
# Children SelfCommand Shared Object Symbol
Segmentation fault
Since -t is used to add field-separator for generate table, -t "" is
actually meanless. This patch defines a new OPT_STRING_NOEMPTY() option
generator to ensure user never pass empty string to that option.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: pi3orama@163.com
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/1426251114-198991-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit f1f13af99a ("perf callchain: Cache eh/debug frame offset for
dwarf unwind") introduces a cache for .debug_frame and .eh_frame_hdr.
Unfortunately, it makes them share a same cache (dso->frame_offset).
Which causes unwind failure on ARM:
$ perf test unwind
Test dwarf unwind: FAILED!
The reason is that, if a dso has '.debug_frame' but doesn't have
'.eh_frame_hdr' (like ARM), dso->frame_offset will be filled by offset
of '.debug_frame' during the first time calling of find_proc_info() ->
read_unwind_spec_debug_frame(), and be regarded to '.eh_frame_hdr' when
the second time calling of find_proc_info() ->
read_unwind_spec_eh_frame(), since '.eh_frame_hdr' is checked prior to
'.debug_frame'.
This patch solves the problem by creating two cache fields for
'.eh_frame_hdr' and '.debug_frame'.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/55028BA0.1030701@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Since some functions (e.g. '_get_comp_words_by_ref()') in perf bash
completion script are originally taken from git bash completion script,
these functions may be preloaded before perf bash completion script
runs.
In order to avoid repeating loading the same function twice, some test
constraints are used before these function definitions in the perf bash
completion script (e.g. 'type _get_comp_words_by_ref &>/dev/null ||').
The problem is that, if these functions in perf bash completion script
are changed for some reason, perf will still use the preloaded bash
functions rather than the customized functions of its own.
As a result, the perf bash completion will behave incorrectly. To get
rid of this problem, a flag can be defined to determine the proper
situation.
And to avoid overwriting the preloaded functions, the names of these
functions in perf bash completion script should be renamed to the
perf-customized ones.
Example:
Before this patch:
$ type _get_comp_words_by_ref
_get_comp_words_by_ref is a function
_get_comp_words_by_ref ()
{
local exclude flag i OPTIND=1;
local cur cword words=();
local upargs=() upvars=() vcur vcword vprev vwords;
while getopts "c:i:n:p:w:" flag "$@"; do
case $flag in
c)
vcur=$OPTARG
;;
i)
vcword=$OPTARG
;;
n)
exclude=$OPTARG
;;
p)
vprev=$OPTARG
;;
w)
vwords=$OPTARG
;;
esac;
done;
while [[ $# -ge $OPTIND ]]; do
case ${!OPTIND} in
cur)
vcur=cur
;;
prev)
vprev=prev
;;
cword)
vcword=cword
;;
words)
vwords=words
;;
*)
echo "bash: $FUNCNAME(): \`${!OPTIND}': unknown argument" 1>&2;
return 1
;;
esac;
let "OPTIND += 1";
done;
__get_cword_at_cursor_by_ref "$exclude" words cword cur;
[[ -n $vcur ]] && {
upvars+=("$vcur");
upargs+=(-v $vcur "$cur")
};
[[ -n $vcword ]] && {
upvars+=("$vcword");
upargs+=(-v $vcword "$cword")
};
[[ -n $vprev && $cword -ge 1 ]] && {
upvars+=("$vprev");
upargs+=(-v $vprev "${words[cword - 1]}")
};
[[ -n $vwords ]] && {
upvars+=("$vwords");
upargs+=(-a${#words[@]} $vwords "${words[@]}")
};
(( ${#upvars[@]} )) && local "${upvars[@]}" && _upvars "${upargs[@]}"
}
As shown above, the _get_comp_words_by_ref is the preloaded function in
fact, rather than the function defined in perf-completion.sh. So if we
happen to change the function for some reason, the result will behave in
a wrong state.
After this patch:
We can set preload_get_comp_words_by_ref="false" to not use the preloaded
function. Instead, it will use the function defined in perf-completion.sh,
which is renamed as __perf_get_comp_words_by_ref to avoid overwriting
the preloaded function _get_comp_words_by_ref.
$ type __perf_get_comp_words_by_ref
__perf_get_comp_words_by_ref is a function
__perf_get_comp_words_by_ref ()
{
local exclude cur_ words_ cword_;
if [ "$1" = "-n" ]; then
exclude=$2;
shift 2;
fi;
__my_reassemble_comp_words_by_ref "$exclude";
cur_=${words_[cword_]};
while [ $# -gt 0 ]; do
case "$1" in
cur)
cur=$cur_
;;
prev)
prev=${words_[$cword_-1]}
;;
words)
words=("${words_[@]}")
;;
cword)
cword=$cword_
;;
esac;
shift;
done
}
As shown above, the function __perf_get_comp_words_by_ref is loaded and
can work this time.
Note that we do not change the original behavior when those functions are
not preloaded before perf bash completion script runs. In this case,
although the flag is set to "true", the code will still change it to
"false" to use the function defined in perf-completion.sh.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-14-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subsubcommands for 'perf
trace <TAB>', so fix it.
Example:
Before this patch:
$ perf trace <TAB>
$
As shown above, the subsubcommands of perf trace does not come out.
After this patch:
$ perf trace <TAB>
record
As shown above, the subsubcommands of perf trace can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-13-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subsubcommands for 'perf
timechart <TAB>', so fix it.
Example:
Before this patch:
$ perf timechart <TAB>
$
As shown above, the subsubcommands of perf timechart does not come out.
After this patch:
$ perf timechart <TAB>
record
As shown above, the subsubcommands of perf timechart can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-12-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subsubcommands for 'perf
test <TAB>', so fix it.
Example:
Before this patch:
$ perf test <TAB>
$
As shown above, the subsubcommands of perf test does not come out.
After this patch:
$ perf test <TAB>
list
As shown above, the subsubcommands of perf test can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-11-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subsubcommands for 'perf
script <TAB>', so fix it.
Example:
Before this patch:
$ perf script <TAB>
$
As shown above, the subsubcommands of perf script does not come out.
After this patch:
$ perf script <TAB>
record report
As shown above, the subsubcommands of perf script can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-10-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subsubcommands for 'perf
help <TAB>', so fix it.
Example:
Before this patch:
$ perf help <TAB>
$
As shown above, the subsubcommands of perf help does not come out.
After this patch:
$ perf help <TAB>
annotate buildid-cache data evlist inject
kvm lock probe report script
test top
bench buildid-list diff help kmem
list mem record sched stat
timechart trace
As shown above, the subsubcommands of perf help can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-9-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subsubcommands for 'perf
data <TAB>', so fix it.
Example:
Before this patch:
$ perf data <TAB>
$
As shown above, the subsubcommands of perf data does not come out.
After this patch:
$ perf data <TAB>
convert
As shown above, the subsubcommands of perf data can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-8-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subcommands for 'perf
--<long option> <TAB>'.
Example:
Before this patch:
$ perf --debug <TAB>
$
As shown above, the subcommands of perf does not come out.
After this patch:
$ perf --debug <TAB>
annotate buildid-cache data evlist inject
kvm lock probe report script
test top version
bench buildid-list diff help kmem
list mem record sched stat
timechart trace
As shown above, the subcommands of perf can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-7-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion only supports -e rather than --event, so fix it.
Example:
Before this patch:
$ perf record --event <TAB>
$
As shown above, the events of record does not come out.
After this patch:
$ perf record --event <TAB>
lignment-faults cpu/instructions/
L1-dcache-prefetch-misses node-prefetches
uncore_rbox_0/qpi0_idle_filt/
branch-instructions cpu/mem-loads/
L1-dcache-store-misses node-prefetch-misses
uncore_rbox_0/qpi1_date_response/
branch-load-misses cpu-migrations
L1-dcache-stores node-store-misses
uncore_rbox_0/qpi1_filt_send/
branch-loads dTLB-load-misses
L1-icache-load-misses node-stores
uncore_rbox_0/qpi1_idle_filt/
...
As shown above, the events of record can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-6-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing events for 'perf kvm|kmem|
mem|lock|sched record|stat|top -e <TAB>', where 'kvm|kmem|mem|lock|sched'
are all subcommands of perf.
Example:
Before this patch:
$ perf kvm record -e <TAB>
$
As shown above, the events of record does not come out.
After this patch:
$ perf kvm record -e <TAB>
alignment-faults cpu/instructions/
L1-dcache-prefetch-misses node-prefetches
uncore_rbox_0/qpi0_idle_filt/
branch-instructions cpu/mem-loads/
L1-dcache-store-misses node-prefetch-misses
uncore_rbox_0/qpi1_date_response/
branch-load-misses cpu-migrations
L1-dcache-stores node-store-misses
uncore_rbox_0/qpi1_filt_send/
branch-loads dTLB-load-misses
L1-icache-load-misses node-stores
uncore_rbox_0/qpi1_idle_filt/
...
As shown above, the events of record can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-5-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion gives wrong options for 'perf kvm|kmem|mem|lock|
sched subsubcommand --<TAB>', where 'kvm|kmem|mem|lock|sched' are all
subcommands of perf and 'subsubcommand' is a subcommand of 'kvm|kmem|mem
|lock|sched'. In fact, the result incorrectly lists the bash completion
of 'perf subcommand' rather than 'perf subcommand subsubcommand'.
Example:
Before this patch:
$ perf kvm record --<TAB>
--guest --guestkallsyms --guestmodules --guestmount
--guestvmlinux --host --input --output
--verbose
As shown above, the result is the options of kvm rather than record.
After this patch:
$ perf kvm record --<TAB>
--all-cpus --cgroup --delay --group
--no-buildid --output --quiet --stat
--uid
--branch-any --count --event --intr-regs
--no-buildid-cache --period --raw-samples --tid
--verbose
--branch-filter --cpu --filter --mmap-pages
--no-inherit --per-thread --realtime --timestamp
--weight
--call-graph --data --freq
--no-buffering --no-samples --pid
--running-time --transaction
As shown above, the result is exactly the options of record as we wished.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-4-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing subsubcommands for 'perf
kvm|kmem|mem|lock|sched --<long option> <TAB>', where 'kvm|kmem|mem|
lock|sched' are all subcommands of perf.
Example:
Before this patch:
$ perf kvm --verbose <TAB>
$
As shown above, the subsubcommands of perf kvm does not come out.
After this patch:
$ perf kvm --verbose <TAB>
buildid-list diff record report stat
top
As shown above, the subsubcommands of perf kvm can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-3-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The bash completion does not support listing options for 'perf
kvm|kmem|mem|lock|sched --<TAB>', where 'kvm|kmem|mem|lock|sched' are
all subcommands of perf.
Example:
Before this patch:
$ perf kvm --<TAB>
$
As shown above, the options of perf kvm does not come out.
After this patch:
$ perf kvm --<TAB>
--alloc --caller --input --line --raw-ip --sort
--verbose
As shown above, the options of perf kvm can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-2-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit:
c6e5e9fbc3 ("perf tools: Fix building error in x86_64 when dwarf unwind is on")
removed the definition of IS_X86_64 but not all places using it, with
the consequence that perf-read-vdsox32 would not be built anymore, and
the default lib install directory was 'lib' instead of 'lib64'.
Also needs to go to v3.19.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: stable@vger.kernel.org # 3.19
Link: http://lkml.kernel.org/r/CAMe9rOqpGVq3D88w+D15ef7sv6G6k57ZeTvxBm46=WFgzo9p1w@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
As it has nothing to do with features and won't be moved
into tools/build.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-6qgf37nss4wwjatgj5i4ng0o@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Preparing for feature checks separation, moving related stuff under
'FEATURE*' namespace.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-v9oo22ra70rrk1dy495a7bjc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Preparing for feature checks separation, moving related
stuff under 'feature*' namespace.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-ciaflab01mf0ljmfb9xr4p41@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Preparing for feature checks separation, moving related stuff under
'feature*' namespace.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-t72o4nwx81owjv14y43b2wpf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It only contains (FEATURE_TESTS - FEATURE_DISPLAY) tests to display the
rest of the checks on 'make VF=1'. But we can actually compute this
list, which is less confusing.
Also renaming LIB_FEATURE_TESTS into FEATURE_DISPLAY, so it reflects
what this variable actually does - display its tests status to user.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-gs160y03hpmx5ezpcr4gunxc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Preparing for feature checks separation, moving related stuff under
'FEATURE*' namespace.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-iobj4f9gygcakrk2v5u61159@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It has no use, so we can directly use the value for CFLAGS.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-ywyr5v962s32daq5hpgfkjap@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The test-all fails to build due to type in pthread-attr-setaffinity-np
include.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-awn2658267slejnebyrlns86@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
