tools headers UAPI: Sync files changed by new fchmodat2 and map_shadow_stack syscalls with the kernel sources

To pick the changes in these csets:

c35559f94ebc3e3b ("x86/shstk: Introduce map_shado

tools headers UAPI: Sync files changed by new fchmodat2 and map_shadow_stack syscalls with the kernel sources

To pick the changes in these csets:

c35559f94ebc3e3b ("x86/shstk: Introduce map_shadow_stack syscall")
78252deb023cf087 ("arch: Register fchmodat2, usually as syscall 452")

That add support for this new syscall in tools such as 'perf trace'.

For instance, this is now possible:

# perf trace -v -e fchmodat*,map_shadow_stack --max-events=4
Using CPUID AuthenticAMD-25-21-0
Reusing "openat" BPF sys_enter augmenter for "fchmodat"
event qualifier tracepoint filter: (common_pid != 3499340 && common_pid != 11259) && (id == 268 || id == 452 || id == 453)
^C#

And it'll work as with other syscalls, for instance openat:

# perf trace -e openat* --max-events=4
0.000 ( 0.015 ms): systemd-oomd/1150 openat(dfd: CWD, filename: "/proc/meminfo", flags: RDONLY|CLOEXEC) = 11
0.068 ( 0.019 ms): systemd-oomd/1150 openat(dfd: CWD, filename: "/sys/fs/cgroup/user.slice/user-1001.slice/user@1001.service/memory.pressure", flags: RDONLY|CLOEXEC) = 11
0.119 ( 0.008 ms): systemd-oomd/1150 openat(dfd: CWD, filename: "/sys/fs/cgroup/user.slice/user-1001.slice/user@1001.service/memory.current", flags: RDONLY|CLOEXEC) = 11
0.138 ( 0.006 ms): systemd-oomd/1150 openat(dfd: CWD, filename: "/sys/fs/cgroup/user.slice/user-1001.slice/user@1001.service/memory.min", flags: RDONLY|CLOEXEC) = 11
#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ find tools/perf/arch/ -name "syscall*tbl" | xargs grep -E fchmodat\|sys_map_shadow_stack
tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl:258 n64 fchmodat sys_fchmodat
tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl:452 n64 fchmodat2 sys_fchmodat2
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl:297 common fchmodat sys_fchmodat
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl:452 common fchmodat2 sys_fchmodat2
tools/perf/arch/s390/entry/syscalls/syscall.tbl:299 common fchmodat sys_fchmodat sys_fchmodat
tools/perf/arch/s390/entry/syscalls/syscall.tbl:452 common fchmodat2 sys_fchmodat2 sys_fchmodat2
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl:268 common fchmodat sys_fchmodat
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl:452 common fchmodat2 sys_fchmodat2
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl:453 64 map_shadow_stack sys_map_shadow_stack
$

$ grep -Ew map_shadow_stack\|fchmodat2 /tmp/build/perf-tools/arch/x86/include/generated/asm/syscalls_64.c
[452] = "fchmodat2",
[453] = "map_shadow_stack",
$

This addresses these perf build warnings:

Warning: Kernel ABI header differences:
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Link: https://lore.kernel.org/lkml/ZP8bE7aXDBu%2Fdrak@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Sync files changed by new cachestat syscall with the kernel sources

To pick the changes in these csets:

cf264e1329fb0307 ("cachestat: implement cachestat syscall")

That add s

tools headers UAPI: Sync files changed by new cachestat syscall with the kernel sources

To pick the changes in these csets:

cf264e1329fb0307 ("cachestat: implement cachestat syscall")

That add support for this new syscall in tools such as 'perf trace'.

For instance, this is now possible:

# perf trace -e cachestat
^C[root@five ~]#
# perf trace -v -e cachestat
Using CPUID AuthenticAMD-25-21-0
event qualifier tracepoint filter: (common_pid != 3163687 && common_pid != 3147) && (id == 451)
mmap size 528384B
^C[root@five ~]

# perf trace -v -e *stat* --max-events=10
Using CPUID AuthenticAMD-25-21-0
event qualifier tracepoint filter: (common_pid != 3163713 && common_pid != 3147) && (id == 4 || id == 5 || id == 6 || id == 136 || id == 137 || id == 138 || id == 262 || id == 332 || id == 451)
mmap size 528384B
0.000 ( 0.009 ms): Cache2 I/O/4544 statfs(pathname: 0x45635288, buf: 0x7f8745725b60) = 0
0.012 ( 0.003 ms): Cache2 I/O/4544 newfstatat(dfd: CWD, filename: 0x45635288, statbuf: 0x7f874569d250) = 0
0.036 ( 0.002 ms): Cache2 I/O/4544 newfstatat(dfd: 138, filename: 0x541b7093, statbuf: 0x7f87457256f0, flag: 4096) = 0
0.372 ( 0.006 ms): Cache2 I/O/4544 statfs(pathname: 0x45635288, buf: 0x7f8745725b10) = 0
0.379 ( 0.003 ms): Cache2 I/O/4544 newfstatat(dfd: CWD, filename: 0x45635288, statbuf: 0x7f874569d250) = 0
0.390 ( 0.002 ms): Cache2 I/O/4544 newfstatat(dfd: 138, filename: 0x541b7093, statbuf: 0x7f87457256a0, flag: 4096) = 0
0.609 ( 0.005 ms): Cache2 I/O/4544 statfs(pathname: 0x45635288, buf: 0x7f8745725b60) = 0
0.615 ( 0.003 ms): Cache2 I/O/4544 newfstatat(dfd: CWD, filename: 0x45635288, statbuf: 0x7f874569d250) = 0
0.625 ( 0.002 ms): Cache2 I/O/4544 newfstatat(dfd: 138, filename: 0x541b7093, statbuf: 0x7f87457256f0, flag: 4096) = 0
0.826 ( 0.005 ms): Cache2 I/O/4544 statfs(pathname: 0x45635288, buf: 0x7f8745725b10) = 0
#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ find tools/perf/arch/ -name "syscall*tbl" | xargs grep -w sys_cachestat
tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl:451 n64 cachestat sys_cachestat
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl:451 common cachestat sys_cachestat
tools/perf/arch/s390/entry/syscalls/syscall.tbl:451 common cachestat sys_cachestat sys_cachestat
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl:451 common cachestat sys_cachestat
$

$ grep -w cachestat /tmp/build/perf-tools/arch/x86/include/generated/asm/syscalls_64.c
[451] = "cachestat",
$

This addresses these perf build warnings:

Warning: Kernel ABI header differences:
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
diff -u tools/include/uapi/linux/mman.h include/uapi/linux/mman.h
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Link: https://lore.kernel.org/lkml/ZK1pVBJpbjujJNJW@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

syscalls: Remove file path comments from headers

Source file locations for syscall definitions can change over a period
of time. File paths in comments get stale and are hard to maintain long
term.

syscalls: Remove file path comments from headers

Source file locations for syscall definitions can change over a period
of time. File paths in comments get stale and are hard to maintain long
term. Also, their usefulness is questionable since it would be easier to
locate a syscall definition using the SYSCALL_DEFINEx() macro.

Remove all source file path comments from the syscall headers. Also,
equalize the uneven line spacing (some of which is introduced due to the
deletions).

Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

show more ...

syscalls: compat: Fix the missing part for __SYSCALL_COMPAT

Make "uapi asm unistd.h" could be used for architectures' COMPAT
mode. The __SYSCALL_COMPAT is first used in riscv.

Signed-off-by: Guo Re

syscalls: compat: Fix the missing part for __SYSCALL_COMPAT

Make "uapi asm unistd.h" could be used for architectures' COMPAT
mode. The __SYSCALL_COMPAT is first used in riscv.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220405071314.3225832-8-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

show more ...

tools headers UAPI: Sync files changed by new set_mempolicy_home_node syscall

To pick the changes in these csets:

21b084fdf2a49ca1 ("mm/mempolicy: wire up syscall set_mempolicy_home_node")

That

tools headers UAPI: Sync files changed by new set_mempolicy_home_node syscall

To pick the changes in these csets:

21b084fdf2a49ca1 ("mm/mempolicy: wire up syscall set_mempolicy_home_node")

That add support for this new syscall in tools such as 'perf trace'.

For instance, this is now possible:

[root@five ~]# perf trace -e set_mempolicy_home_node
^C[root@five ~]#
[root@five ~]# perf trace -v -e set_mempolicy_home_node
Using CPUID AuthenticAMD-25-21-0
event qualifier tracepoint filter: (common_pid != 253729 && common_pid != 3585) && (id == 450)
mmap size 528384B
^C[root@five ~]
[root@five ~]# perf trace -v -e set* --max-events 5
Using CPUID AuthenticAMD-25-21-0
event qualifier tracepoint filter: (common_pid != 253734 && common_pid != 3585) && (id == 38 || id == 54 || id == 105 || id == 106 || id == 109 || id == 112 || id == 113 || id == 114 || id == 116 || id == 117 || id == 119 || id == 122 || id == 123 || id == 141 || id == 160 || id == 164 || id == 170 || id == 171 || id == 188 || id == 205 || id == 218 || id == 238 || id == 273 || id == 308 || id == 450)
mmap size 528384B
0.000 ( 0.008 ms): bash/253735 setpgid(pid: 253735 (bash), pgid: 253735 (bash)) = 0
6849.011 ( 0.008 ms): bash/16046 setpgid(pid: 253736 (bash), pgid: 253736 (bash)) = 0
6849.080 ( 0.005 ms): bash/253736 setpgid(pid: 253736 (bash), pgid: 253736 (bash)) = 0
7437.718 ( 0.009 ms): gnome-shell/253737 set_robust_list(head: 0x7f34b527e920, len: 24) = 0
13445.986 ( 0.010 ms): bash/16046 setpgid(pid: 253738 (bash), pgid: 253738 (bash)) = 0
[root@five ~]#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ find tools/perf/arch/ -name "syscall*tbl" | xargs grep -w set_mempolicy_home_node
tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl:450 common set_mempolicy_home_node sys_set_mempolicy_home_node
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl:450 nospu set_mempolicy_home_node sys_set_mempolicy_home_node
tools/perf/arch/s390/entry/syscalls/syscall.tbl:450 common set_mempolicy_home_node sys_set_mempolicy_home_node sys_set_mempolicy_home_node
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl:450 common set_mempolicy_home_node sys_set_mempolicy_home_node
$

$ grep -w set_mempolicy_home_node /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c
[450] = "set_mempolicy_home_node",
$

This addresses these perf build warnings:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Sync files changed by new futex_waitv syscall

To pick the changes in these csets:

039c0ec9bb77446d ("futex,x86: Wire up sys_futex_waitv()")
bf69bad38cf63d98 ("futex: Impleme

tools headers UAPI: Sync files changed by new futex_waitv syscall

To pick the changes in these csets:

039c0ec9bb77446d ("futex,x86: Wire up sys_futex_waitv()")
bf69bad38cf63d98 ("futex: Implement sys_futex_waitv()")

That add support for this new syscall in tools such as 'perf trace'.

For instance, this is now possible:

# perf trace -e futex_waitv
^C#
# perf trace -v -e futex_waitv
Using CPUID AuthenticAMD-25-21-0
event qualifier tracepoint filter: (common_pid != 807333 && common_pid != 3564) && (id == 449)
mmap size 528384B
^C#
# perf trace -v -e futex* --max-events 10
Using CPUID AuthenticAMD-25-21-0
event qualifier tracepoint filter: (common_pid != 812168 && common_pid != 3564) && (id == 202 || id == 449)
mmap size 528384B
? ( ): Timer/219310 ... [continued]: futex()) = -1 ETIMEDOUT (Connection timed out)
0.012 ( 0.002 ms): Timer/219310 futex(uaddr: 0x7fd0b152d3c8, op: WAKE|PRIVATE_FLAG, val: 1) = 0
0.024 ( 0.060 ms): Timer/219310 futex(uaddr: 0x7fd0b152d420, op: WAIT_BITSET|PRIVATE_FLAG, utime: 0x7fd0b1657840, val3: MATCH_ANY) = 0
0.086 ( 0.001 ms): Timer/219310 futex(uaddr: 0x7fd0b152d3c8, op: WAKE|PRIVATE_FLAG, val: 1) = 0
0.088 ( ): Timer/219310 futex(uaddr: 0x7fd0b152d424, op: WAIT_BITSET|PRIVATE_FLAG, utime: 0x7fd0b1657840, val3: MATCH_ANY) ...
0.075 ( 0.005 ms): Web Content/219299 futex(uaddr: 0x7fd0b152d420, op: WAKE|PRIVATE_FLAG, val: 1) = 1
0.169 ( 0.004 ms): Web Content/219299 futex(uaddr: 0x7fd0b152d424, op: WAKE|PRIVATE_FLAG, val: 1) = 1
0.088 ( 0.089 ms): Timer/219310 ... [continued]: futex()) = 0
0.179 ( 0.001 ms): Timer/219310 futex(uaddr: 0x7fd0b152d3c8, op: WAKE|PRIVATE_FLAG, val: 1) = 0
0.181 ( ): Timer/219310 futex(uaddr: 0x7fd0b152d420, op: WAIT_BITSET|PRIVATE_FLAG, utime: 0x7fd0b1657840, val3: MATCH_ANY) ...
#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ grep futex_waitv tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
449 common futex_waitv sys_futex_waitv
$

This addresses these perf build warnings:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Cc: André Almeida <andrealmeid@collabora.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Sync files changed by new process_mrelease syscall and the removal of some compat entry points

To pick the changes in these csets:

59ab844eed9c6b01 ("compat: remove some compa

tools headers UAPI: Sync files changed by new process_mrelease syscall and the removal of some compat entry points

To pick the changes in these csets:

59ab844eed9c6b01 ("compat: remove some compat entry points")
dce49103962840dd ("mm: wire up syscall process_mrelease")
b48c7236b13cb5ef ("exit/bdflush: Remove the deprecated bdflush system call")

That add support for this new syscall in tools such as 'perf trace'.

For instance, this is now possible:

# perf trace -v -e process_mrelease
event qualifier tracepoint filter: (common_pid != 19351 && common_pid != 9112) && (id == 448)
^C#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ grep process_mrelease tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
448 common process_mrelease sys_process_mrelease
$

This addresses these perf build warnings:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Sync files changed by the memfd_secret new syscall

To pick the changes in this cset:

7bb7f2ac24a028b2 ("arch, mm: wire up memfd_secret system call where relevant")

That silen

tools headers UAPI: Sync files changed by the memfd_secret new syscall

To pick the changes in this cset:

7bb7f2ac24a028b2 ("arch, mm: wire up memfd_secret system call where relevant")

That silences these perf build warnings and add support for those new
syscalls in tools such as 'perf trace'.

For instance, this is now possible:

# perf trace -v -e memfd_secret
event qualifier tracepoint filter: (common_pid != 13375 && common_pid != 3713) && (id == 447)
^C#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ grep memfd_secret tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
447 common memfd_secret sys_memfd_secret
$

This addresses these perf build warnings:

Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/unistd.h' differs from latest version at 'arch/arm64/include/uapi/asm/unistd.h'
diff -u tools/arch/arm64/include/uapi/asm/unistd.h arch/arm64/include/uapi/asm/unistd.h
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Sync files changed by the quotactl_fd new syscall

To pick the changes in these csets:

64c2c2c62f92339b ("quota: Change quotactl_path() systcall to an fd-based one")
65ffb3d6

tools headers UAPI: Sync files changed by the quotactl_fd new syscall

To pick the changes in these csets:

64c2c2c62f92339b ("quota: Change quotactl_path() systcall to an fd-based one")
65ffb3d69ed3da28 ("quota: Wire up quotactl_fd syscall")

That silences these perf build warnings and add support for those new
syscalls in tools such as 'perf trace'.

For instance, this is now possible:

# perf trace -v -e quota*
event qualifier tracepoint filter: (common_pid != 158365 && common_pid != 2512) && (id == 179 || id == 443)
^C#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ grep quota tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
179 common quotactl sys_quotactl
443 common quotactl_fd sys_quotactl_fd
$

This addresses these perf build warnings:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Sync asm-generic/unistd.h with the kernel original

To pick the changes in:

8b1462b67f23da54 ("quota: finish disable quotactl_path syscall")

Those headers are used in some arc

tools headers UAPI: Sync asm-generic/unistd.h with the kernel original

To pick the changes in:

8b1462b67f23da54 ("quota: finish disable quotactl_path syscall")

Those headers are used in some arches to generate the syscall table used
in 'perf trace' to translate syscall numbers into strings.

This addresses this perf build warning:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h

Cc: Jan Kara <jack@suse.cz>
Cc: Marcin Juszkiewicz <marcin@juszkiewicz.com.pl>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Sync files changed by landlock, quotactl_path and mount_settattr new syscalls

To pick the changes in these csets:

a49f4f81cb48925e ("arch: Wire up Landlock syscalls")
2a1867

tools headers UAPI: Sync files changed by landlock, quotactl_path and mount_settattr new syscalls

To pick the changes in these csets:

a49f4f81cb48925e ("arch: Wire up Landlock syscalls")
2a1867219c7b27f9 ("fs: add mount_setattr()")
fa8b90070a80bb1a ("quota: wire up quotactl_path")

That silences these perf build warnings and add support for those new
syscalls in tools such as 'perf trace'.

For instance, this is now possible:

# ~acme/bin/perf trace -v -e landlock*
event qualifier tracepoint filter: (common_pid != 129365 && common_pid != 3502) && (id == 444 || id == 445 || id == 446)
^C#

That is tha filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

$ grep landlock tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
444 common landlock_create_ruleset sys_landlock_create_ruleset
445 common landlock_add_rule sys_landlock_add_rule
446 common landlock_restrict_self sys_landlock_restrict_self
$

This addresses these perf build warnings:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: James Morris <jamorris@linux.microsoft.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Mickaël Salaün <mic@linux.microsoft.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

fs: add mount_setattr()

This implements the missing mount_setattr() syscall. While the new mount
api allows to change the properties of a superblock there is currently
no way to change the propertie

fs: add mount_setattr()

This implements the missing mount_setattr() syscall. While the new mount
api allows to change the properties of a superblock there is currently
no way to change the properties of a mount or a mount tree using file
descriptors which the new mount api is based on. In addition the old
mount api has the restriction that mount options cannot be applied
recursively. This hasn't changed since changing mount options on a
per-mount basis was implemented in [1] and has been a frequent request
not just for convenience but also for security reasons. The legacy
mount syscall is unable to accommodate this behavior without introducing
a whole new set of flags because MS_REC | MS_REMOUNT | MS_BIND |
MS_RDONLY | MS_NOEXEC | [...] only apply the mount option to the topmost
mount. Changing MS_REC to apply to the whole mount tree would mean
introducing a significant uapi change and would likely cause significant
regressions.

The new mount_setattr() syscall allows to recursively clear and set
mount options in one shot. Multiple calls to change mount options
requesting the same changes are idempotent:

int mount_setattr(int dfd, const char *path, unsigned flags,
struct mount_attr *uattr, size_t usize);

Flags to modify path resolution behavior are specified in the @flags
argument. Currently, AT_EMPTY_PATH, AT_RECURSIVE, AT_SYMLINK_NOFOLLOW,
and AT_NO_AUTOMOUNT are supported. If useful, additional lookup flags to
restrict path resolution as introduced with openat2() might be supported
in the future.

The mount_setattr() syscall can be expected to grow over time and is
designed with extensibility in mind. It follows the extensible syscall
pattern we have used with other syscalls such as openat2(), clone3(),
sched_{set,get}attr(), and others.
The set of mount options is passed in the uapi struct mount_attr which
currently has the following layout:

struct mount_attr {
__u64 attr_set;
__u64 attr_clr;
__u64 propagation;
__u64 userns_fd;
};

The @attr_set and @attr_clr members are used to clear and set mount
options. This way a user can e.g. request that a set of flags is to be
raised such as turning mounts readonly by raising MOUNT_ATTR_RDONLY in
@attr_set while at the same time requesting that another set of flags is
to be lowered such as removing noexec from a mount tree by specifying
MOUNT_ATTR_NOEXEC in @attr_clr.

Note, since the MOUNT_ATTR_<atime> values are an enum starting from 0,
not a bitmap, users wanting to transition to a different atime setting
cannot simply specify the atime setting in @attr_set, but must also
specify MOUNT_ATTR__ATIME in the @attr_clr field. So we ensure that
MOUNT_ATTR__ATIME can't be partially set in @attr_clr and that @attr_set
can't have any atime bits set if MOUNT_ATTR__ATIME isn't set in
@attr_clr.

The @propagation field lets callers specify the propagation type of a
mount tree. Propagation is a single property that has four different
settings and as such is not really a flag argument but an enum.
Specifically, it would be unclear what setting and clearing propagation
settings in combination would amount to. The legacy mount() syscall thus
forbids the combination of multiple propagation settings too. The goal
is to keep the semantics of mount propagation somewhat simple as they
are overly complex as it is.

The @userns_fd field lets user specify a user namespace whose idmapping
becomes the idmapping of the mount. This is implemented and explained in
detail in the next patch.

[1]: commit 2e4b7fcd9260 ("[PATCH] r/o bind mounts: honor mount writer counts at remount")

Link: https://lore.kernel.org/r/20210121131959.646623-35-christian.brauner@ubuntu.com
Cc: David Howells <dhowells@redhat.com>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-api@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

show more ...

tools headers UAPI: Update epoll_pwait2 affected files

To pick the changes from:

b0a0c2615f6f199a ("epoll: wire up syscall epoll_pwait2")

That addresses these perf build warning:

Warning: Ker

tools headers UAPI: Update epoll_pwait2 affected files

To pick the changes from:

b0a0c2615f6f199a ("epoll: wire up syscall epoll_pwait2")

That addresses these perf build warning:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Update asm-generic/unistd.h

Just a comment change, trivial.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc:

tools headers UAPI: Update asm-generic/unistd.h

Just a comment change, trivial.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools headers UAPI: Update process_madvise affected files

To pick the changes from:

ecb8ac8b1f146915 ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API")

That addr

tools headers UAPI: Update process_madvise affected files

To pick the changes from:

ecb8ac8b1f146915 ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API")

That addresses these perf build warning:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

mm: remove compat_process_vm_{readv,writev}

Now that import_iovec handles compat iovecs, the native syscalls
can be used for the compat case as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
S

mm: remove compat_process_vm_{readv,writev}

Now that import_iovec handles compat iovecs, the native syscalls
can be used for the compat case as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

show more ...

fs: remove compat_sys_vmsplice

Now that import_iovec handles compat iovecs, the native vmsplice syscall
can be used for the compat case as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed

fs: remove compat_sys_vmsplice

Now that import_iovec handles compat iovecs, the native vmsplice syscall
can be used for the compat case as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

show more ...

fs: remove the compat readv/writev syscalls

Now that import_iovec handles compat iovecs, the native readv and writev
syscalls can be used for the compat case as well.

Signed-off-by: Christoph Hellw

fs: remove the compat readv/writev syscalls

Now that import_iovec handles compat iovecs, the native readv and writev
syscalls can be used for the compat case as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

show more ...

fs: remove compat_sys_mount

compat_sys_mount is identical to the regular sys_mount now, so remove it
and use the native version everywhere.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-

fs: remove compat_sys_mount

compat_sys_mount is identical to the regular sys_mount now, so remove it
and use the native version everywhere.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

show more ...

tools headers API: Update close_range affected files

To pick the changes from:

55db9c0e8534 ("net: remove compat_sys_{get,set}sockopt")
9b4feb630e8e ("arch: wire-up close_range()")

That automa

tools headers API: Update close_range affected files

To pick the changes from:

55db9c0e8534 ("net: remove compat_sys_{get,set}sockopt")
9b4feb630e8e ("arch: wire-up close_range()")

That automagically add the 'close_range' syscall to tools such as 'perf
trace'.

Before:

# perf trace -e close_range
event syntax error: 'close_range'
\___ parser error
Run 'perf list' for a list of valid events

Usage: perf trace [<options>] [<command>]
or: perf trace [<options>] -- <command> [<options>]
or: perf trace record [<options>] [<command>]
or: perf trace record [<options>] -- <command> [<options>]

-e, --event <event> event/syscall selector. use 'perf list' to list available events
#

After, system wide strace like tracing for this syscall:

# perf trace -e close_range
^C#

No calls, I need some test proggie :-)

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

net: remove compat_sys_{get,set}sockopt

Now that the ->compat_{get,set}sockopt proto_ops methods are gone
there is no good reason left to keep the compat syscalls separate.

This fixes the odd use o

net: remove compat_sys_{get,set}sockopt

Now that the ->compat_{get,set}sockopt proto_ops methods are gone
there is no good reason left to keep the compat syscalls separate.

This fixes the odd use of unsigned int for the compat_setsockopt
optlen and the missing sock_use_custom_sol_socket.

It would also easily allow running the eBPF hooks for the compat
syscalls, but such a large change in behavior does not belong into
a consolidation patch like this one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

tools headers API: Update faccessat2 affected files

Update the copies of files affected by:

c8ffd8bcdd28 ("vfs: add faccessat2 syscall")

To address this perf build warning:

Warning: Kernel AB

tools headers API: Update faccessat2 affected files

Update the copies of files affected by:

c8ffd8bcdd28 ("vfs: add faccessat2 syscall")

To address this perf build warning:

Warning: Kernel ABI header at 'tools/include/uapi/linux/fcntl.h' differs from latest version at 'include/uapi/linux/fcntl.h'
diff -u tools/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Which results in 'perf trace' gaining support for the 'faccessat2'
syscall, now one can use:

# perf trace -e faccessat2

And have system wide tracing of this syscall. And this also will include
it;

# perf trace -e faccess*

Together with the other variants.

How it affects building/usage (on an x86_64 system):

$ cp /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c /tmp/syscalls_64.c.before
$
[root@five ~]# perf trace -e faccessat2
event syntax error: 'faccessat2'
\___ parser error
Run 'perf list' for a list of valid events

Usage: perf trace [<options>] [<command>]
or: perf trace [<options>] -- <command> [<options>]
or: perf trace record [<options>] [<command>]
or: perf trace record [<options>] -- <command> [<options>]

-e, --event <event> event/syscall selector. use 'perf list' to list available events
[root@five ~]#
$ cp arch/x86/entry/syscalls/syscall_64.tbl tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
$ git diff
diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
index 37b844f839bc..78847b32e137 100644
--- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
@@ -359,6 +359,7 @@
435 common clone3 sys_clone3
437 common openat2 sys_openat2
438 common pidfd_getfd sys_pidfd_getfd
+439 common faccessat2 sys_faccessat2

#
# x32-specific system call numbers start at 512 to avoid cache impact
$

$ make -C tools/perf O=/tmp/build/perf/ install-bin
<SNIP>
CC /tmp/build/perf/util/syscalltbl.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
<SNIP>
[root@five ~]# perf trace -e faccessat2
^C[root@five ~]#

Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools include UAPI: Sync x86's syscalls_64.tbl, generic unistd.h and fcntl.h to pick up openat2 and pidfd_getfd

fddb5d430ad9 ("open: introduce openat2(2) syscall")
9a2cef09c801 ("arch: wire up p

tools include UAPI: Sync x86's syscalls_64.tbl, generic unistd.h and fcntl.h to pick up openat2 and pidfd_getfd

fddb5d430ad9 ("open: introduce openat2(2) syscall")
9a2cef09c801 ("arch: wire up pidfd_getfd syscall")

We also need to grab a copy of uapi/linux/openat2.h since it is now
needed by fcntl.h, add it to tools/perf/check_headers.h.

$ diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
--- tools/perf/arch/x86/entry/syscalls/syscall_64.tbl 2019-12-20 16:43:57.662429958 -0300
+++ arch/x86/entry/syscalls/syscall_64.tbl 2020-02-10 16:36:22.070012468 -0300
@@ -357,6 +357,8 @@
433 common fspick __x64_sys_fspick
434 common pidfd_open __x64_sys_pidfd_open
435 common clone3 __x64_sys_clone3/ptregs
+437 common openat2 __x64_sys_openat2
+438 common pidfd_getfd __x64_sys_pidfd_getfd

#
# x32-specific system call numbers start at 512 to avoid cache impact
$

Update tools/'s copy of that file:

$ cp arch/x86/entry/syscalls/syscall_64.tbl tools/perf/arch/x86/entry/syscalls/syscall_64.tbl

See the result:

$ diff -u /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c
--- /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before 2020-02-10 16:42:59.010636041 -0300
+++ /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c 2020-02-10 16:43:24.149958337 -0300
@@ -346,5 +346,7 @@
[433] = "fspick",
[434] = "pidfd_open",
[435] = "clone3",
+ [437] = "openat2",
+ [438] = "pidfd_getfd",
};
-#define SYSCALLTBL_x86_64_MAX_ID 435
+#define SYSCALLTBL_x86_64_MAX_ID 438
$

Now one can use:

perf trace -e openat2,pidfd_getfd

To get just those syscalls or use in things like:

perf trace -e open*

To get all the open variant (open, openat, openat2, etc) or:

perf trace pidfd*

To get the pidfd syscalls.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Sargun Dhillon <sargun@sargun.me>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools uapi asm-generic: Sync unistd.h with the kernel sources

To pick the change from:

78e05972c5e6 ("ipc: fix semtimedop for generic 32-bit architectures")

Which doesn't trigger any change in t

tools uapi asm-generic: Sync unistd.h with the kernel sources

To pick the change from:

78e05972c5e6 ("ipc: fix semtimedop for generic 32-bit architectures")

Which doesn't trigger any change in tooling and silences this perf build
warning:

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-hpnjuyjzoudltqe7dvbokqdt@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

tools include UAPI: Sync x86's syscalls_64.tbl and generic unistd.h to pick up clone3 and pidfd_open

05a70a8ec287 ("unistd: protect clone3 via __ARCH_WANT_SYS_CLONE3")
8f3220a80654 ("arch: wire-

tools include UAPI: Sync x86's syscalls_64.tbl and generic unistd.h to pick up clone3 and pidfd_open

05a70a8ec287 ("unistd: protect clone3 via __ARCH_WANT_SYS_CLONE3")
8f3220a80654 ("arch: wire-up clone3() syscall")
7615d9e1780e ("arch: wire-up pidfd_open()")

Silencing the following tools/perf build warnings

Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Now 'perf trace -e pidfd*,clone*' will trace those syscalls as well as the
others with those prefixes.

$ diff -u /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c
--- /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c.before 2019-07-26 12:24:55.020944201 -0300
+++ /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c 2019-07-26 12:25:03.919047217 -0300
@@ -344,5 +344,7 @@
[431] = "fsconfig",
[432] = "fsmount",
[433] = "fspick",
+ [434] = "pidfd_open",
+ [435] = "clone3",
};
-#define SYSCALLTBL_x86_64_MAX_ID 433
+#define SYSCALLTBL_x86_64_MAX_ID 435
$

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Christian Brauner <christian@brauner.io>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-0isnnqxtr1ihz6p8wzjiy47d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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