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* perf trace beauty: Export the fd beautifier for use in more placesArnaldo Carvalho de Melo2017-07-181-0/+3
| | | | | | | | | | | | | | | Now that the beautifiers are being split into multiple source and object files, we will need more of them exported, do it for the 'fd' one, will be used to augment the return of some syscalls that may return an 'fd', such as fcntl(fd, F_DUPFD). 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-39sosu12hhywyunqf5s74ewf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty: Give syscall return beautifier more contextArnaldo Carvalho de Melo2017-07-183-7/+12
| | | | | | | | | | | | | | | We need the current thread and the trace internal state so that we can use the fd beautifier to augment syscall returns, so use struct syscall_arg with some fields that make sense on returns (val, thread, trace). 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-lqag8e86ybidrh5zpqne05ov@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty fcntl: Beautify F_[GS]ETFD arg/return valueArnaldo Carvalho de Melo2017-07-181-2/+14
| | | | | | | | | | | | | | | | | | | | | Now it will show 0 or CLOEXEC, the only !0 value returned by the kernel for fcntl(fd, F_GETFD). And for F_SETFD: 6870.267 ( 0.004 ms): make/29812 fcntl(fd: 7</home/acme/git/linux/tools/build/Build.include>, cmd: SETFD, arg: CLOEXEC) = 0 6873.805 ( 0.002 ms): make/29816 fcntl(fd: 6</home/acme/git/linux/tools/build/Makefile.build>, cmd: SETFD, arg: CLOEXEC) = 0 <SNIP> 77986.150 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 45</dev/snd/pcmC1D0p>, cmd: SETFD, arg: CLOEXEC) = 0 77986.271 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 23</dev/snd/controlC1>, cmd: SETFD, arg: CLOEXEC) = 0 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-sz9dob7t4zd6m65femazpaah@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty fcntl flags: Beautify F_SETFL argArnaldo Carvalho de Melo2017-07-181-0/+2
| | | | | | | | | | | | | | Result: 0.011 (0.001 ms): Chrome_IOThrea/19863 fcntl(fd: 130</dev/shm/.com.google.Chrome.w5UBtZ (deleted)>, cmd: SETFL, arg: RDWR|APPEND|LARGEFILE) = 0 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-qgf8ggsq9chnjblxlq954deu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty open flags: Move RDRW to the start of the outputArnaldo Carvalho de Melo2017-07-181-1/+1
| | | | | | | | | | | | | | | | | | | | We were getting: 62597.859 ( 0.005 ms): TaskSchedulerF/18107 fcntl(fd: 194, cmd: GETFL) = LARGEFILE|RDWR Instead of the more familiar (from looking at strace output): 62597.859 ( 0.005 ms): TaskSchedulerF/18107 fcntl(fd: 194, cmd: GETFL) = RDWR|LARGEFILE 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-d4d9nd88t4bu9y9odbrcb5z6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty fcntl: Beautify F_GETFL return valueArnaldo Carvalho de Melo2017-07-181-2/+8
| | | | | | | | | | | | | | | The return for fcntl(fd, F_GETFL) is the fd file flags, so reuse the one for the open syscall flags parameter: 997.992 (0.002 ms): Chrome_IOThrea/19863 fcntl(fd: 144</dev/shm/.com.google.Chrome.OhA8YL>, cmd: GETFL) = RDWR|LARGEFILE 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-5nn3n4p4yfs6u0leoq880apc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty open flags: Do not depend on the system's O_LARGEFILE defineArnaldo Carvalho de Melo2017-07-181-0/+3
| | | | | | | | | | | | | In x86_64 /usr/include/bits/fcntl.h sets it to zero, so just undef it and use the standard 00100000 value when decoding the open flags arg. 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-k28megguz5snwop9obvn9mcr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty open flags: Support O_TMPFILE and O_NOFOLLOWArnaldo Carvalho de Melo2017-07-181-0/+6
| | | | | | | | | | | | | The open syscall flags beautifier wasn't considering those flags, 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-ukzoldh4arrl8x2uwjafd22h@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Allow syscall_arg beautifiers to set a different return formatterArnaldo Carvalho de Melo2017-07-181-0/+3
| | | | | | | | | | | | | Things like fcntl will use this to set the right formatter based on its 'cmd' argument. 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-4ea3wplb8b4j7aymj0d5uo0h@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf beauty open: Detach the syscall_arg agnostic bits from the flags formatterArnaldo Carvalho de Melo2017-07-182-6/+15
| | | | | | | | | | | | | | | | | | | | | | | | | We may want to use this in other contexts, like when formatting the return of fcntl(fd, F_GETFL). Make it have the following signature, so that we can set the formatter for the return argument while processing the arguments of a syscall, as fcntl, for instance, may return fds, flags, etc, so need different return value formatters: size_t formatter(unsigned long value, char *bf, size_t size); This gets so detached from 'perf trace' internals that we may well get all these and move to a tools/lib/syscall_beauty/ library at some point and use it in other tools/ living utilities. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <ast@kernel.org> 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-9aw8t22ztvnkuv26l6sw1c18@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty fcntl: Basic 'arg' beautifierArnaldo Carvalho de Melo2017-07-182-0/+21
| | | | | | | | | | | | | | Sometimes it should be printed as an hex number, like with F_SETLK, F_SETLKW and F_GETLK, that treat 'arg' as a struct flock pointer, in other cases it is just an integer. 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-2gykg6enk7vos6q0m97hkgsg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty: Introduce syscall arg beautifier for long integersArnaldo Carvalho de Melo2017-07-181-0/+3
| | | | | | | | | | | | | | | | Will be used in the fcntl arg beautifier, that nowadays formats as '%ld' because there is no explicit arg beautifier attached, but as we will have to first decide what beautifier to use (i.e. it may be a pointer, etc) then we need to have this exported as a separate beautifier to be called from there. 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-d7bfs3m8m70j3zckeam0kk5d@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty: Export the "int" and "hex" syscall arg formattersArnaldo Carvalho de Melo2017-07-181-0/+6
| | | | | | | | | | | | | The most basic ones, for pointers, unaugmented fds, etc, to be used in the initial fcntl 'arg' beautifier. 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-g0lugj4vv6p4jtge32hid6q6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty: Allow accessing syscall args values in a syscall arg ↵Arnaldo Carvalho de Melo2017-07-181-0/+13
| | | | | | | | | | | | | | | | formatter For instance, fcntl's upcoming 'arg' formatter needs to look at the 'cmd' value to decide how to format its value, sometimes it is a file flags, sometimes an fd, a pointer to a structure, etc. 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-2tw2jfaqm48dtw8a4addghze@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty: Mask ignored fcntl 'arg' parameterArnaldo Carvalho de Melo2017-07-183-0/+27
| | | | | | | | | | | | A series of fcntl cmds ignore the third argument, so mask 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-6vtl3zq1tauamrhm8o380ptn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty: Export the strarrays scnprintf methodArnaldo Carvalho de Melo2017-07-181-0/+3
| | | | | | | | | | | | | As we'll call it from the fcntl cmd scnprintf method, that needs to look at the cmd to mask the next fcntl argument when it is ignored. 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-fzlvkhew5vbxefneuciihgbc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add signal.h to places using its definitionsArnaldo Carvalho de Melo2017-04-201-0/+1
| | | | | | | And remove it from util.h, disentangling it a bit more. Link: http://lkml.kernel.org/n/tip-2zg9s5nx90yde64j3g4z2uhk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Beautify statx syscall 'flag' and 'mask' argumentsArnaldo Carvalho de Melo2017-03-313-0/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To test it, build samples/statx/test_statx, which I did as: $ make headers_install $ cc -I ~/git/linux/usr/include samples/statx/test-statx.c -o /tmp/statx And then use perf trace on it: # perf trace -e statx /tmp/statx /etc/passwd statx(/etc/passwd) = 0 results=7ff Size: 3496 Blocks: 8 IO Block: 4096 regular file Device: fd:00 Inode: 280156 Links: 1 Access: (0644/-rw-r--r--) Uid: 0 Gid: 0 Access: 2017-03-29 16:01:01.650073438-0300 Modify: 2017-03-10 16:25:14.156479354-0300 Change: 2017-03-10 16:25:14.171479328-0300 0.000 ( 0.007 ms): statx/30648 statx(dfd: CWD, filename: 0x7ef503f4, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7fff7ef4eb10) = 0 # Using the test-stat.c options to change the mask: # perf trace -e statx /tmp/statx -O /etc/passwd > /dev/null 0.000 ( 0.008 ms): statx/30745 statx(dfd: CWD, filename: 0x3a0753f4, flags: SYMLINK_NOFOLLOW, mask: BTIME, buffer: 0x7ffd3a0735c0) = 0 # # perf trace -e statx /tmp/statx -A /etc/passwd > /dev/null 0.000 ( 0.010 ms): statx/30757 statx(dfd: CWD, filename: 0xa94e63f4, flags: SYMLINK_NOFOLLOW|NO_AUTOMOUNT, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffea94e49d0) = 0 # # trace --no-inherit -e statx /tmp/statx -F /etc/passwd > /dev/null 0.000 ( 0.011 ms): statx(dfd: CWD, filename: 0x3b02d3f3, flags: SYMLINK_NOFOLLOW|STATX_FORCE_SYNC, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffd3b02c850) = 0 # # trace --no-inherit -e statx /tmp/statx -F -L /etc/passwd > /dev/null 0.000 ( 0.008 ms): statx(dfd: CWD, filename: 0x15cff3f3, flags: STATX_FORCE_SYNC, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7fff15cfdda0) = 0 # # trace --no-inherit -e statx /tmp/statx -D -O /etc/passwd > /dev/null 0.000 ( 0.009 ms): statx(dfd: CWD, filename: 0xfa37f3f3, flags: SYMLINK_NOFOLLOW|STATX_DONT_SYNC, mask: BTIME, buffer: 0x7ffffa37da20) = 0 # Adding a probe to get the filename collected as well: # perf probe 'vfs_getname=getname_flags:72 pathname=result->name:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=result->name:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # trace --no-inherit -e statx /tmp/statx -D -O /etc/passwd > /dev/null 0.169 ( 0.007 ms): statx(dfd: CWD, filename: /etc/passwd, flags: SYMLINK_NOFOLLOW|STATX_DONT_SYNC, mask: BTIME, buffer: 0x7ffda9bf50f0) = 0 # Same technique could be used to collect and beautify the result put in the 'buffer' argument. Finally do a system wide 'perf trace' session looking for any use of statx, then run the test proggie with various flags: # trace -e statx 16612.967 ( 0.028 ms): statx/4562 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffef195d660) = 0 33064.447 ( 0.011 ms): statx/4569 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW|STATX_FORCE_SYNC, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffc5484c790) = 0 36050.891 ( 0.023 ms): statx/4576 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: BTIME, buffer: 0x7ffeb18b66e0) = 0 38039.889 ( 0.023 ms): statx/4584 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7fff1db0ea90) = 0 ^C# This one also starts moving the beautifiers from files directly included in builtin-trace.c to separate objects + a beauty.h header with prototypes, so that we can add test cases in tools/perf/tests/ to fire syscalls with various arguments and then get them intercepted as syscalls:sys_enter_foo or raw_syscalls:sys_enter + sys_exit to then format and check that the formatted output is the one we expect. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: David Ahern <dsahern@gmail.com> Cc: David Howells <dhowells@redhat.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-xvzw8eynffvez5czyzidhrno@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Check if MAP_32BIT is defined (again)Jiri Olsa2016-12-201-0/+2
| | | | | | | | | | | | | | | There might be systems where MAP_32BIT is not defined, like some some RHEL7 powerpc versions. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Kyle McMartin <kyle@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Fixes: 256763b01741 ("perf trace beauty mmap: Add more conditional defines") Link: http://lkml.kernel.org/r/1481831814-23683-1-git-send-email-jolsa@kernel.org [ Changed the Fixme cset to the one removing the conditional switch case for MAP_32BIT ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty mmap: Add missing MADV_FREEWang Nan2016-09-191-0/+1
| | | | | | | | | | | | tools/perf/trace/beauty/mmap.c forgets to check MADV_FREE. This patch fixes it. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1473850649-83389-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty mmap: Fix defines for non !x86_64Arnaldo Carvalho de Melo2016-09-131-70/+1
| | | | | | | | | | | | | | | | Several defines have different values in different arches, so we can't just define it to the x86_64 value, use uapi/linux/mmap.h that was recently introduced to reliably find those, not using possibly outdated libc headers. 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> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/n/tip-4eajp5yp8i2fuw44n7jmcg5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty seccomp: Remove seccomp.h includeArnaldo Carvalho de Melo2016-07-121-2/+0
| | | | | | | | | | | | | All we need from it is already conditionally defined, and this header file is not present in older systems, so ditch 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-3jxpz9gwahk4e7ltqtnr1rjg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty futex_op: Add missing defines for older systemsArnaldo Carvalho de Melo2016-07-121-0/+16
| | | | | | | | | | 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-6qkuhv2mrcxmpy5sasc3c9tf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty open_flags: Add more conditional definesArnaldo Carvalho de Melo2016-07-121-0/+12
| | | | | | | | | | | | | Don't handle some flags only if they have its defines in headers at time of building, define what is missing. 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-wgjxeidwpowrvqgrxr080k6u@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty flock: Add more conditional definesArnaldo Carvalho de Melo2016-07-121-0/+16
| | | | | | | | | | | | | Don't handle some flags only if they have its defines in headers at time of building, define what is missing. 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-pgoxanv1y6hfcnryxawzuskl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty mmap: Add more conditional definesArnaldo Carvalho de Melo2016-07-121-22/+55
| | | | | | | | | | | | | Don't handle some flags only if they have its defines in headers at time of building, define what is missing. 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-czbmxb01xzcl3h2qxuzoqkj5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty open_flags: Add missing headersArnaldo Carvalho de Melo2016-07-121-0/+3
| | | | | | | | | | | | | | Those beautifiers need to make sure they include what they reference, as changes in builtin-trace.c may end up removing needed stuff, like when undefining _GNU_SOURCE. 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-a9cz8za6lqutfapn5e7uum09@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty flock: Add missing fcntl.h includeArnaldo Carvalho de Melo2016-07-121-0/+1
| | | | | | | | | | | | | | Those beautifiers need to make sure they include what they reference, as changes in builtin-trace.c may end up removing needed stuff, like when undefining _GNU_SOURCE. 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-2etqhfmgv5jcnfwnkbwadns2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty msg_flags: Remove MSG_TRYHARDArnaldo Carvalho de Melo2016-07-121-1/+0
| | | | | | | | | | | | | It is the same as MSG_DONTROUTE and is only defined together with _GNU_SOURCE. 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-q4vbov6jl0e0152y01kv2htw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty eventfd: No need to include eventfd.hArnaldo Carvalho de Melo2016-06-301-2/+0
| | | | | | | | | | | | | Old systems such as RHEL5 lack this file, and what we need is already under ifdefs, so just ditch this #include. 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-dzbjfllw6znuoy37skwnwa4r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace beauty sched_policy: Define SCHED_RESET_ON_FORK for older systemsArnaldo Carvalho de Melo2016-06-301-0/+3
| | | | | | | | | | | | RHEL5 for instance doesn't have this one, help 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-3adewnii78zi110eovfciopy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-05-111-0/+52
| | | | | | | | | | To reduce the size of builtin-trace.c. Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-ovxifncj34ynrjjseg33lil3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move flock op beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-05-111-0/+31
| | | | | | | | | | To reduce the size of builtin-trace.c. Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-c4c47w2a2jx13terl2p2hros@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move futex_op beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-05-061-0/+44
| | | | | | | | | | | | To reduce the size of builtin-trace.c. 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-vb8dpy7bptkf219q5c25ulfp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move open_flags beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-05-061-0/+56
| | | | | | | | | | | | To reduce the size of builtin-trace.c. 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-jt293541hv9od7gqw6lilioh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move signum beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-05-061-0/+53
| | | | | | | | | | | | To reduce the size of builtin-trace.c. 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-qecqxwwtreio6eaatfv58yq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move msg_flags beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-04-281-0/+62
| | | | | | | | | | | | To reduce the size of builtin-trace.c. 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-11zxg3qitk6bw2x30135k9z4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Read thread's COMM from /proc when not setArnaldo Carvalho de Melo2016-04-261-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We get notifications for threads that gets created while we're tracing, but for preexisting threads we may end not having synthesized them, like when tracing a 'perf trace' session that will use '--pid' to trace some other thread. And besides we should probably stop synthesizing those records and instead read thread information in a lazy way, i.e. just when we need, like done in this patch: Now the 'pid_t' argument in 'perf_event_open' gets translated to a COMM: # perf trace -e perf_event_open perf stat -e cycles -p 31601 0.027 ( 0.027 ms): perf/23393 perf_event_open(attr_uptr: 0x2fdd0d8, pid: 31601 (abrt-dump-journ), cpu: -1, group_fd: -1, flags: FD_CLOEXEC) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = 3 ^C And in other syscalls containing pid_t without thread->comm_set at the time of the formatting. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-ioeps6dlwst17d6oozc9shtk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move perf_flags beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-04-261-0/+43
| | | | | | | | | | | | To reduce the size of builtin-trace.c. 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-8r3gmymyn3r0ynt4yuzspp9g@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move socket_type beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo2016-04-141-0/+60
| | | | | | | | | | | | To reduce the size of builtin-trace.c. 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-ao91htwxdqwlwxr47gbluou1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move eventfd beautifiers to trace/beauty/ directoryArnaldo Carvalho de Melo2016-04-141-0/+38
| | | | | | | | | | | | | To better organize all these beautifiers. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-zrw5zz7cnrs44o5osouyutvt@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Move mmap beautifiers to trace/beauty/ directoryArnaldo Carvalho de Melo2016-04-141-0/+158
| | | | | | | | | | | | | To better organize all these beautifiers. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-zbr27mdy9ssdhux3ib2nfa7j@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Beautify mode_t argumentsArnaldo Carvalho de Melo2016-04-081-0/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When reading the syscall tracepoint /format file, look for arguments of type "mode_t" and attach a beautifier: [root@jouet ~]# cat ~/bin/tp_with_fields_of_type #!/bin/bash grep -w $1 /sys/kernel/tracing/events/syscalls/*/format | sed -r 's%.*sys_enter_(.*)/format.*%\1%g' | paste -d, -s # tp_with_fields_of_type umode_t chmod,creat,fchmodat,fchmod,mkdirat,mkdir,mknodat,mknod,mq_open,openat,open # Testing it: #define S_ISUID 0004000 #define S_ISGID 0002000 #define S_ISVTX 0001000 #define S_IRWXU 0000700 #define S_IRUSR 0000400 #define S_IWUSR 0000200 #define S_IXUSR 0000100 #define S_IRWXG 0000070 #define S_IRGRP 0000040 #define S_IWGRP 0000020 #define S_IXGRP 0000010 #define S_IRWXO 0000007 #define S_IROTH 0000004 #define S_IWOTH 0000002 #define S_IXOTH 0000001 # for mode in 4000 2000 1000 700 400 200 100 70 40 20 10 7 4 2 1 ; do \ echo -n $mode '->' ; trace --no-inherit -e chmod,fchmodat,fchmod chmod $mode x; \ done 4000 -> 0.338 ( 0.012 ms): fchmodat(dfd: CWD, filename: x, mode: ISUID) = 0 2000 -> 0.438 ( 0.015 ms): fchmodat(dfd: CWD, filename: x, mode: ISGID) = 0 1000 -> 0.677 ( 0.040 ms): fchmodat(dfd: CWD, filename: x, mode: ISVTX) = 0 700 -> 0.394 ( 0.013 ms): fchmodat(dfd: CWD, filename: x, mode: IRWXU) = 0 400 -> 0.337 ( 0.010 ms): fchmodat(dfd: CWD, filename: x, mode: IRUSR) = 0 200 -> 0.259 ( 0.008 ms): fchmodat(dfd: CWD, filename: x, mode: IWUSR) = 0 100 -> 0.249 ( 0.008 ms): fchmodat(dfd: CWD, filename: x, mode: IXUSR) = 0 70 -> 0.266 ( 0.008 ms): fchmodat(dfd: CWD, filename: x, mode: IRWXG) = 0 40 -> 0.329 ( 0.009 ms): fchmodat(dfd: CWD, filename: x, mode: IRGRP) = 0 20 -> 0.250 ( 0.009 ms): fchmodat(dfd: CWD, filename: x, mode: IWGRP) = 0 10 -> 0.259 ( 0.008 ms): fchmodat(dfd: CWD, filename: x, mode: IXGRP) = 0 7 -> 0.249 ( 0.009 ms): fchmodat(dfd: CWD, filename: x, mode: IRWXO) = 0 4 -> 0.278 ( 0.011 ms): fchmodat(dfd: CWD, filename: x, mode: IROTH) = 0 2 -> 0.276 ( 0.009 ms): fchmodat(dfd: CWD, filename: x, mode: IWOTH) = 0 1 -> 0.250 ( 0.008 ms): fchmodat(dfd: CWD, filename: x, mode: IXOTH) = 0 # # trace --no-inherit -e chmod,fchmodat,fchmod chmod 7777 x 0.258 ( 0.011 ms): fchmodat(dfd: CWD, filename: x, mode: IALLUGO) = 0 # trace --no-inherit -e chmod,fchmodat,fchmod chmod 7770 x 0.258 ( 0.008 ms): fchmodat(dfd: CWD, filename: x, mode: ISUID|ISGID|ISVTX|IRWXU|IRWXG) = 0 # trace --no-inherit -e chmod,fchmodat,fchmod chmod 777 x 0.293 ( 0.012 ms): fchmodat(dfd: CWD, filename: x, mode: IRWXUGO # Now lets see if check by using the tracepoint for that specific syscall, instead of raw_syscalls:sys_enter as 'trace' does for its strace fu: # trace --no-inherit --ev syscalls:sys_enter_fchmodat -e fchmodat chmod 666 x 0.255 ( ): syscalls:sys_enter_fchmodat:dfd: 0xffffffffffffff9c, filename: 0x55db32a3f0f0, mode: 0x000001b6) 0.268 ( 0.012 ms): fchmodat(dfd: CWD, filename: x, mode: IRUGO|IWUGO ) = 0 # Perfect, 0x1bc == 0666. 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-18e8zfgbkj83xo87yoom43kd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Beautify pid_t argumentsArnaldo Carvalho de Melo2016-04-061-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When reading the syscall tracepoint /format file, look for arguments of type "pid_t" and attach the PID beautifier, that will do a lookup on the threads it knows, i.e. the ones that came from PERF_RECORD_COMM events and add the COMM after the pid in such args: Excerpt of a system wide trace for syscalls with pid_t args: 55602.977 ( 0.006 ms): bash/12122 setpgid(pid: 24347 (bash), pgid: 24347 (bash)) = 0 55603.024 ( 0.004 ms): bash/24347 setpgid(pid: 24347 (bash), pgid: 24347 (bash)) = 0 55691.527 (88.397 ms): bash/12122 wait4(upid: -1, stat_addr: 0x7ffe0cee1720, options: UNTRACED|CONTINUED) ... 55692.479 ( 0.952 ms): git/24347 wait4(upid: 24368, stat_addr: 0x7ffe030d5724) ... 55694.549 ( 2.070 ms): pre-commit/24368 wait4(upid: -1, stat_addr: 0x7ffc94f4fc10) = 24369 (pre-commit) 55694.575 ( 0.002 ms): pre-commit/24368 wait4(upid: -1, stat_addr: 0x7ffc94f4f650, options: NOHANG) = -1 ECHILD No child processes 55695.934 ( 0.010 ms): pre-commit/24368 wait4(upid: -1, stat_addr: 0x7ffc94f4f2d0, options: NOHANG) = 24370 (git) 55695.937 ( 0.001 ms): pre-commit/24368 wait4(upid: -1, stat_addr: 0x7ffc94f4f2d0, options: NOHANG) = -1 ECHILD No child processes 55717.963 ( 0.000 ms): pre-commit/24371 ... [continued]: wait4()) = 24372 55717.978 (21.468 ms): :24371/24371 wait4(upid: -1, stat_addr: 0x7ffc94f4f230) ... 55718.087 ( 0.109 ms): pre-commit/24371 wait4(upid: -1, stat_addr: 0x7ffc94f4f230) = 24373 (tr) 55718.187 ( 0.096 ms): pre-commit/24371 wait4(upid: -1, stat_addr: 0x7ffc94f4f230) = 24374 (wc) 55718.218 ( 0.002 ms): pre-commit/24371 wait4(upid: -1, stat_addr: 0x7ffc94f4eed0, options: NOHANG) = -1 ECHILD No child processes 55718.367 ( 0.005 ms): pre-commit/24368 wait4(upid: -1, stat_addr: 0x7ffc94f4f1d0, options: NOHANG) = 24371 (pre-commit) 55718.369 ( 0.001 ms): pre-commit/24368 wait4(upid: -1, stat_addr: 0x7ffc94f4f1d0, options: NOHANG) = -1 ECHILD No child processes 55741.021 (49.494 ms): git/24347 ... [continued]: wait4()) = 24368 (pre-commit) 74146.427 (18319.601 ms): git/24347 wait4(upid: 24375 (git), stat_addr: 0x7ffe030d6824) ... 74149.036 ( 0.891 ms): bash/24391 wait4(upid: -1, stat_addr: 0x7ffe0cee0560) = 24393 (sed) 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-75yl9hzjhb020iadc81gdj8t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Beautify wait4/waitid 'options' argumentArnaldo Carvalho de Melo2016-04-061-0/+26
| | | | | | | | | | | | | | | | | | | # trace -e waitid,wait4 0.557 ( 0.557 ms): bash/27335 wait4(upid: -1, stat_addr: 0x7ffd02f449f0) = 27336 1.250 ( 0.685 ms): bash/27335 wait4(upid: -1, stat_addr: 0x7ffd02f449f0) = 27337 1.312 ( 0.002 ms): bash/27335 wait4(upid: -1, stat_addr: 0x7ffd02f44690, options: NOHANG) = -1 ECHILD No child processes 1.550 ( 0.015 ms): bash/3856 wait4(upid: -1, stat_addr: 0x7ffd02f44990, options: NOHANG|UNTRACED|CONTINUED) = 27335 1.552 ( 0.001 ms): bash/3856 wait4(upid: -1, stat_addr: 0x7ffd02f44990, options: NOHANG|UNTRACED|CONTINUED) = 0 # 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-i5vlo5n5jv0amt8bkyicmdxh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Beautify sched_setscheduler 'policy' argumentArnaldo Carvalho de Melo2016-04-061-0/+44
| | | | | | | | | | | | | | | $ trace -e sched_setscheduler chrt -f 1 usleep 1 chrt: failed to set pid 0's policy: Operation not permitted 0.005 ( 0.005 ms): chrt/19189 sched_setscheduler(policy: FIFO, param: 0x7ffec5273d70) = -1 EPERM Operation not permitted $ 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-i5vlo5n5jv0amt8bkyicmdxh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Add read/write to the file groupArnaldo Carvalho de Melo2015-09-041-0/+2
| | | | | | | | | | | | 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-l6812iuai3g486z3mn8ufan8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Support 'strace' syscall event groupsArnaldo Carvalho de Melo2015-07-201-0/+18
I.e.: $ cat ~/share/perf-core/strace/groups/file access chmod creat execve faccessat getcwd lstat mkdir open openat quotactl readlink rename rmdir stat statfs symlink unlink $ Then, on a quiet desktop, try running this and then moving your mouse to see the deluge of mouse related activity: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # # trace --ev probe:vfs_getname --filter-pids 2232 -e file 0.042 (0.042 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.042 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/xterm") 0.100 (0.100 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.142 (0.018 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.142 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/index.theme") 0.192 (0.069 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.230 (0.017 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.230 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/usr/share/icons/Adwaita/cursors/xterm") 0.253 (0.041 ms): mousetweaks/2235 ... [continued]: open()) = 14 0.459 (0.008 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.459 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/left_side") 0.468 (0.017 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory Need to combine that raw_syscalls:sys_enter(open) + probe:vfs_getname + raw_syscalls:sys_exit(open) sequence... Now, if you're bored, please write some more syscall groups, like the ones in 'strace' and send it our way :-) 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: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a42xklu59lcbxp7bbnic74a8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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