2b64b2ed27
Will be used in conjunction with the change to augmented_raw_syscalls.c
in the next cset that adds all syscalls with a first or second arg
string.
With just what we have in the syscall tracepoints we get:
# perf trace -e string ls > /dev/null
? ( ): ls/22382 ... [continued]: execve()) = 0
0.043 ( 0.004 ms): ls/22382 access(filename: 0x51ad420, mode: R) = -1 ENOENT (No such file or directory)
0.051 ( 0.004 ms): ls/22382 openat(dfd: CWD, filename: 0x51aa8b3, flags: RDONLY|CLOEXEC) = 3
0.071 ( 0.004 ms): ls/22382 openat(dfd: CWD, filename: 0x51b4d00, flags: RDONLY|CLOEXEC) = 3
0.138 ( 0.009 ms): ls/22382 openat(dfd: CWD, filename: 0x51684d0, flags: RDONLY|CLOEXEC) = 3
0.192 ( 0.004 ms): ls/22382 openat(dfd: CWD, filename: 0x51689c0, flags: RDONLY|CLOEXEC) = 3
0.255 ( 0.004 ms): ls/22382 openat(dfd: CWD, filename: 0x5168eb0, flags: RDONLY|CLOEXEC) = 3
0.342 ( 0.003 ms): ls/22382 openat(dfd: CWD, filename: 0x51693a0, flags: RDONLY|CLOEXEC) = 3
0.380 ( 0.003 ms): ls/22382 openat(dfd: CWD, filename: 0x5169950, flags: RDONLY|CLOEXEC) = 3
0.670 ( 0.011 ms): ls/22382 statfs(pathname: 0x515c783, buf: 0x7fff54d75b70) = 0
0.683 ( 0.005 ms): ls/22382 statfs(pathname: 0x515c783, buf: 0x7fff54d75a60) = 0
0.725 ( 0.004 ms): ls/22382 access(filename: 0x515c7ab) = 0
0.744 ( 0.005 ms): ls/22382 openat(dfd: CWD, filename: 0x50fba20, flags: RDONLY|CLOEXEC) = 3
0.793 ( 0.004 ms): ls/22382 openat(dfd: CWD, filename: 0x9e3e8390, flags: RDONLY|CLOEXEC|DIRECTORY|NONBLOCK) = 3
0.921 ( 0.006 ms): ls/22382 openat(dfd: CWD, filename: 0x50f7d90) = 3
#
If we put the vfs_getname probe point in place:
# perf probe 'vfs_getname=getname_flags:73 pathname=result->name:string'
Added new events:
probe:vfs_getname (on getname_flags:73 with pathname=result->name:string)
probe:vfs_getname_1 (on getname_flags:73 with pathname=result->name:string)
You can now use it in all perf tools, such as:
perf record -e probe:vfs_getname_1 -aR sleep 1
# perf trace -e string ls > /dev/null
? ( ): ls/22440 ... [continued]: execve()) = 0
0.048 ( 0.008 ms): ls/22440 access(filename: /etc/ld.so.preload, mode: R) = -1 ENOENT (No such file or directory)
0.061 ( 0.007 ms): ls/22440 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: RDONLY|CLOEXEC) = 3
0.092 ( 0.008 ms): ls/22440 openat(dfd: CWD, filename: /lib64/libselinux.so.1, flags: RDONLY|CLOEXEC) = 3
0.165 ( 0.007 ms): ls/22440 openat(dfd: CWD, filename: /lib64/libcap.so.2, flags: RDONLY|CLOEXEC) = 3
0.216 ( 0.007 ms): ls/22440 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: RDONLY|CLOEXEC) = 3
0.282 ( 0.007 ms): ls/22440 openat(dfd: CWD, filename: /lib64/libpcre2-8.so.0, flags: RDONLY|CLOEXEC) = 3
0.340 ( 0.007 ms): ls/22440 openat(dfd: CWD, filename: /lib64/libdl.so.2, flags: RDONLY|CLOEXEC) = 3
0.383 ( 0.007 ms): ls/22440 openat(dfd: CWD, filename: /lib64/libpthread.so.0, flags: RDONLY|CLOEXEC) = 3
0.697 ( 0.021 ms): ls/22440 statfs(pathname: /sys/fs/selinux, buf: 0x7ffee7dc9010) = 0
0.720 ( 0.007 ms): ls/22440 statfs(pathname: /sys/fs/selinux, buf: 0x7ffee7dc8f00) = 0
0.757 ( 0.007 ms): ls/22440 access(filename: /etc/selinux/config) = 0
0.779 ( 0.009 ms): ls/22440 openat(dfd: CWD, filename: /usr/lib/locale/locale-archive, flags: RDONLY|CLOEXEC) = 3
0.830 ( 0.006 ms): ls/22440 openat(dfd: CWD, filename: ., flags: RDONLY|CLOEXEC|DIRECTORY|NONBLOCK) = 3
0.958 ( 0.010 ms): ls/22440 openat(dfd: CWD, filename: /usr/lib64/gconv/gconv-modules.cache) = 3
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-6fh1myvn7ulf4xwq9iz3o776@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
66 lines
584 B
Plaintext
66 lines
584 B
Plaintext
access
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acct
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add_key
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chdir
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chmod
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chown
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chroot
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creat
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delete_module
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execve
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execveat
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faccessat
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fchmodat
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fchownat
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fgetxattr
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finit_module
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fremovexattr
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fsetxattr
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futimesat
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getxattr
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inotify_add_watch
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lchown
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lgetxattr
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link
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linkat
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listxattr
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llistxattr
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lremovexattr
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lsetxattr
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lstat
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memfd_create
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mkdir
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mkdirat
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mknod
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mknodat
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mq_open
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mq_timedsend
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mq_unlink
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name_to_handle_at
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newfstatat
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open
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openat
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pivot_root
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pwrite64
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quotactl
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readlink
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readlinkat
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removexattr
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rename
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renameat
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renameat2
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request_key
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rmdir
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setxattr
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stat
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statfs
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statx
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swapoff
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swapon
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symlink
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symlinkat
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truncate
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unlink
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unlinkat
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utimensat
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