/usr/share/systemtap/tapset/linux/syscalls.stpm is in systemtap-common 2.9-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (C) 2013-2015 Red Hat Inc.
//
// This file is part of systemtap, and is free software. You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
@define __syscall_nr_gate(syscall_nr)
%(
# Here we don't care if we're in a compat task or not, we just
# want to make sure we've got the correct syscall number.
#
# If _stp_syscall_nr() fails, that means we aren't in user
# context. So, skip this call.
try { if (_stp_syscall_nr() != @syscall_nr) next } catch { next }
%)
@define __syscall_gate(syscall_nr)
%(
# On some platforms (like s390x and ppc64), the 32-bit
# syscalls use the same syscall number as the 64-bit
# syscall. So, we have to check to see if this is a
# 32-on-64-bit user task.
@__syscall_gate_compat_simple
# If _stp_syscall_nr() fails, that means we aren't in user
# context. So, skip this call.
try { if (_stp_syscall_nr() != @syscall_nr) next } catch { next }
%)
@define __syscall_gate2(syscall_nr1, syscall_nr2)
%(
# On some platforms (like s390x and ppc64), the 32-bit
# syscalls use the same syscall number as the 64-bit
# syscall. So, we have to check to see if this is a
# 32-on-64-bit user task.
@__syscall_gate_compat_simple
try { __nr = _stp_syscall_nr() } catch { next }
if ((__nr != @syscall_nr1) && (__nr != @syscall_nr2)) next
%)
@define __syscall_compat_gate(syscall_nr, compat_syscall_nr)
%(
%( CONFIG_COMPAT == "y" %?
try { __nr = _stp_syscall_nr() } catch { next }
if (@__compat_task) {
if (__nr != @compat_syscall_nr)
next
}
else if (__nr != @syscall_nr)
next
%:
try { if (_stp_syscall_nr() != @syscall_nr) next } catch { next }
%)
%)
@define __compat_syscall_gate(compat_syscall_nr)
%(
%( CONFIG_COMPAT == "y" %?
try { __nr = _stp_syscall_nr() } catch { next }
if (@__compat_task) {
if (__nr != @compat_syscall_nr) next
}
%)
%)
@define __compat_syscall_gate_negative(compat_syscall_nr)
%(
%( CONFIG_COMPAT == "y" %?
try { __nr = _stp_syscall_nr() } catch { next }
if (@__compat_task) {
if (__nr == @compat_syscall_nr) next
}
%)
%)
@define __syscall_gate_compat_simple
%(
%( CONFIG_COMPAT == "y" %?
if (@__compat_task) next
%)
%)
@define __pointer(val)
%(
%( CONFIG_COMPAT == "y" %?
# If this is a compat task, the high bits of a pointer may be
# garbage.
(@__compat_task ? (@val & 0xffffffff) : @val)
%:
@val
%)
%)
@define _af_inet_info_u(my_addr_uaddr, addrlen)
%(
%( systemtap_v >= "2.5" %?
uaddr_af = _struct_sockaddr_u_sa_family(@my_addr_uaddr, @addrlen)
if (_struct_sockaddr_u_sa_family(@my_addr_uaddr, @addrlen) =~ "AF_INET.*") {
uaddr_ip = _struct_sockaddr_u_ip_addr(@my_addr_uaddr, @addrlen)
uaddr_ip_port = _struct_sockaddr_u_tcp_port(@my_addr_uaddr, @addrlen)
if (_struct_sockaddr_u_sa_family(@my_addr_uaddr, @addrlen) == "AF_INET6") {
uaddr_ipv6_flowinfo = _struct_sockaddr_u_ipv6_flowinfo(@my_addr_uaddr, @addrlen)
uaddr_ipv6_scope_id = _struct_sockaddr_u_ipv6_scope_id(@my_addr_uaddr, @addrlen)
}
}
%)
%)
# The following argstr processing is modeled on strace's handling of
# futex. Because it is so complicated and is used in 4 places
# (syscall.futex, syscall.compat_futex, nd_syscall.futex, and
# nd_syscall.compat_futex), a macro is used to handle all the
# details.
@define __futex_argstr(uaddr, op, val, utime, uaddr2, val3)
%(
if (@op == %{ /* pure */ FUTEX_WAKE_BITSET %}) {
argstr = sprintf("%p, %s, %d, %#x", @uaddr, _futex_op_str(@op),
@val, @val3)
}
else if (@op == %{ /* pure */ FUTEX_WAIT %}) {
argstr = sprintf("%p, %s, %d, %s", @uaddr, _futex_op_str(@op),
@val,
(@__compat_task
? _struct_compat_timespec_u(@utime, 1)
: _struct_timespec_u(@utime, 1)))
}
else if (@op == %{ /* pure */ FUTEX_WAIT_BITSET %}) {
argstr = sprintf("%p, %s, %d, %s, %#x", @uaddr,
_futex_op_str(@op), @val,
(@__compat_task
? _struct_compat_timespec_u(@utime, 1)
: _struct_timespec_u(@utime, 1)), @val3)
}
else if (@op == %{ /* pure */ FUTEX_REQUEUE %}) {
argstr = sprintf("%p, %s, %d, %d, %p", @uaddr,
_futex_op_str(@op), @val, @utime,
@uaddr2)
}
else if (@op == %{ /* pure */ FUTEX_CMP_REQUEUE %}
|| @op == %{ /* pure */ FUTEX_CMP_REQUEUE_PI %}) {
argstr = sprintf("%p, %s, %d, %u, %p, %d", @uaddr,
_futex_op_str(@op), @val, @utime,
@uaddr2, @val3)
}
else if (@op == %{ /* pure */ FUTEX_WAKE_OP %}) {
argstr = sprintf("%p, %s, %d, %u, %p, %s", @uaddr,
_futex_op_str(@op), @val, @utime,
@uaddr2, _futex_wake_op_str(@val3))
}
else if (@op == %{ /* pure */ FUTEX_WAIT_REQUEUE_PI %}) {
argstr = sprintf("%p, %s, %d, %s, %p", @uaddr,
_futex_op_str(@op), @val,
(@__compat_task
? _struct_compat_timespec_u(@utime, 1)
: _struct_timespec_u(@utime, 1)),
@uaddr2)
}
else {
argstr = sprintf("%p, %s, %d", @uaddr, _futex_op_str(@op),
@val)
}
%)
%( systemtap_v <= "2.9" %?
@define __int32_compat(arg)
%(
%( CONFIG_64BIT == "y" %?
(@__compat_task ? __int32(@arg) : @arg)
%:
(__int32(@arg))
%)
%)
%)
@define __keyctl_argstr(option, arg2, arg3, arg4, arg5)
%(
if ((@option == %{ /* pure */ KEYCTL_READ %}) ||
(@option == %{ /* pure */ KEYCTL_DESCRIBE %}) ||
(@option == %{ /* pure */ KEYCTL_GET_SECURITY %})) {
argstr = sprintf("%s, %s, %p, %d", _stp_keyctl_cmd_str(@option),
_stp_keyctl_keyring_shortcut_str(@arg2),
@arg3, @__compat_long(@arg4))
}
else if (@option == %{ /* pure */ KEYCTL_UPDATE %}) {
argstr = sprintf("%s, %d, %s, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), user_string_quoted(@arg3),
@__compat_long(@arg4))
}
else if ((@option == %{ /* pure */ KEYCTL_REVOKE %}) ||
(@option == %{ /* pure */ KEYCTL_CLEAR %}) ||
(@option == %{ /* pure */ KEYCTL_INVALIDATE %}) ||
(@option == %{ /* pure */ KEYCTL_ASSUME_AUTHORITY %})) {
argstr = sprintf("%s, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2))
}
else if ((@option == %{ /* pure */ KEYCTL_LINK %}) ||
(@option == %{ /* pure */ KEYCTL_UNLINK %})) {
argstr = sprintf("%s, %d, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), @__compat_long(@arg3))
}
else if (@option == %{ /* pure */ KEYCTL_SEARCH %}) {
argstr = sprintf("%s, %d, %s, %s, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), user_string_quoted(@arg3),
user_string_quoted(@arg4), @__compat_long(@arg5))
}
else if (@option == %{ /* pure */ KEYCTL_CHOWN %}) {
argstr = sprintf("%s, %d, %d, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), @__compat_long(@arg3),
@__compat_long(@arg4))
}
else if (@option == %{ /* pure */ KEYCTL_SETPERM %}) {
argstr = sprintf("%s, %d, %s", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), _stp_keyctl_perm_str(@arg3))
}
else if ((@option == %{ /* pure */ KEYCTL_INSTANTIATE %})) {
argstr = sprintf("%s, %d, %s, %d, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), user_string_quoted(@arg3),
@__compat_long(@arg4), @__compat_long(@arg5))
}
else if ((@option == %{ /* pure */ KEYCTL_INSTANTIATE_IOV %})) {
argstr = sprintf("%s, %d, %p, %d, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), @arg3, @__compat_long(@arg4),
@__compat_long(@arg5))
}
else if (@option == %{ /* pure */ KEYCTL_NEGATE %}) {
argstr = sprintf("%s, %d, %u, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), @arg3, @__compat_long(@arg4))
}
else if (@option == %{ /* pure */ KEYCTL_REJECT %}) {
argstr = sprintf("%s, %d, %u, %u, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), @arg3, @arg4,
@__compat_long(@arg5))
}
else if (@option == %{ /* pure */ KEYCTL_SET_TIMEOUT %}) {
argstr = sprintf("%s, %d, %u", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), @arg3)
}
else if (@option == %{ /* pure */ KEYCTL_GET_KEYRING_ID %}) {
argstr = sprintf("%s, %s, %d", _stp_keyctl_cmd_str(@option),
_stp_keyctl_keyring_shortcut_str(@arg2),
@__compat_long(@arg3))
}
else if (@option == %{ /* pure */ KEYCTL_SET_REQKEY_KEYRING %}) {
argstr = sprintf("%s, %s", _stp_keyctl_cmd_str(@option),
_stp_keyctl_default_keyrings_str(@arg2))
}
else if (@option == %{ /* pure */ KEYCTL_JOIN_SESSION_KEYRING %}) {
argstr = sprintf("%s, %p", _stp_keyctl_cmd_str(@option), @arg2)
}
else if (@option == %{ /* pure */ KEYCTL_GET_PERSISTENT %}) {
argstr = sprintf("%s, %d, %d", _stp_keyctl_cmd_str(@option),
@__compat_long(@arg2), @__compat_long(@arg3))
}
else {
argstr = sprintf("%d, %d, %d, %d, %d", @option,
@__compat_long(@arg2), @__compat_long(@arg3),
@__compat_long(@arg4), @__compat_long(@arg5))
}
%)
@define __quotactl_argstr(subcmd, arg1, arg2, arg3, arg4)
%(
if (@subcmd == %{ /* pure */ Q_QUOTAON %}) {
argstr = sprintf("%s, %s, %s, %s",
_quotactl_cmd_str(@arg1), user_string_quoted(@arg2),
_quotactl_quota_type_str(@arg3),
user_string_quoted(@arg4))
}
else if ((@subcmd == %{ /* pure */ Q_GETQUOTA %}) ||
(@subcmd == %{ /* pure */ Q_SETQUOTA %})) {
argstr = sprintf("%s, %s, %d, %s",
_quotactl_cmd_str(@arg1), user_string_quoted(@arg2),
@arg3, _struct_dqblk_u(@arg4))
}
else if ((@subcmd == %{ /* pure */ Q_GETINFO %}) ||
(@subcmd == %{ /* pure */ Q_SETINFO %})) {
argstr = sprintf("%s, %s, %d, %s",
_quotactl_cmd_str(@arg1), user_string_quoted(@arg2),
@arg3, _struct_dqinfo_u(@arg4))
}
else if (@subcmd == %{ /* pure */ Q_GETFMT %}) {
argstr = sprintf("%s, %s, %d, %x",
_quotactl_cmd_str(@arg1), user_string_quoted(@arg2),
@arg3, @arg4)
}
else if ((@subcmd == %{ /* pure */ Q_SYNC %}) ||
(@subcmd == %{ /* pure */ Q_QUOTAOFF %})) {
argstr = sprintf("%s, %s, %d, %p",
_quotactl_cmd_str(@arg1), user_string_quoted(@arg2),
@arg3, @arg4)
}
else {
argstr = sprintf("%s, %p, %d, %p", _quotactl_cmd_str(@arg1),
@arg2, @arg3, @arg4)
}
%)
# @__compat_ulong() macro adds the ability to distinguish between compat and non-compat
# task to the __ulong() function making it full-featured couterpart to ulong_arg().
@define __compat_ulong(arg)
%(
%( CONFIG_COMPAT == "y" %?
(@__compat_task ? __uint32(@arg) : __ulong(@arg))
%:
__ulong(@arg)
%)
%)
# @__compat_long() macro adds the ability to distinguish between compat and non-compat
# task to the __long() function making it full-featured couterpart to long_arg().
@define __compat_long(arg)
%(
%( CONFIG_COMPAT == "y" %?
(@__compat_task ? __int32(@arg) : __long(@arg))
%:
__long(@arg)
%)
%)
@define __BIG_ENDIAN
%(
%{ /* pure */
#ifdef __BIG_ENDIAN
1
#else
0
#endif
%}
%)
|