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|
%( CONFIG_GENERIC_SIGALTSTACK == "n" || kernel_v < "3.8" %?
# sigaltstack ________________________________________________
# long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
# struct pt_regs *regs)
# asmlinkage long
# sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
# stack_ia32_t __user *uoss_ptr,
# struct pt_regs *regs)
#
# NOTE: args vary between archs.
#
@define _SYSCALL_SIGALTSTACK_NAME
%(
name = "sigaltstack"
%)
@define _SYSCALL_SIGALTSTACK_ARGSTR
%(
argstr = sprintf("%s, %p", uss_str, uoss_uaddr)
%)
probe syscall.sigaltstack = dw_syscall.sigaltstack !, nd_syscall.sigaltstack {}
probe syscall.sigaltstack.return = dw_syscall.sigaltstack.return !,
nd_syscall.sigaltstack.return {}
# dw_sigaltstack _____________________________________________________
probe dw_syscall.sigaltstack = kernel.function("sys_sigaltstack").call,
kernel.function("sys32_sigaltstack").call ?
{
@_SYSCALL_SIGALTSTACK_NAME
uss_uaddr = @choose_defined($uss, $uss_ptr)
uoss_uaddr = @choose_defined($uoss, $uoss_ptr)
# 'regs_uaddr' should have been 'regs'. Deprecate the old name.
%(systemtap_v <= "1.4" %?
regs_uaddr = $regs
%)
%(systemtap_v < "2.3" %?
regs = $regs
%)
uss_str = (@__compat_task ? _stp_compat_sigaltstack_u(uss_uaddr)
: _stp_sigaltstack_u(uss_uaddr))
@_SYSCALL_SIGALTSTACK_ARGSTR
}
probe dw_syscall.sigaltstack.return = kernel.function("sys_sigaltstack").return,
kernel.function("sys32_sigaltstack").return ?
{
@_SYSCALL_SIGALTSTACK_NAME
@SYSC_RETVALSTR($return)
}
# nd_sigaltstack _____________________________________________________
probe nd_syscall.sigaltstack = kprobe.function("sys_sigaltstack"),
kprobe.function("sys32_sigaltstack").call ?
{
@_SYSCALL_SIGALTSTACK_NAME
asmlinkage()
uss_uaddr = pointer_arg(1)
uoss_uaddr = pointer_arg(2)
%(systemtap_v < "2.3" %?
regs_uaddr = pointer_arg(3)
regs = pointer_arg(3)
%)
uss_str = (@__compat_task ? _stp_compat_sigaltstack_u(uss_uaddr)
: _stp_sigaltstack_u(uss_uaddr))
@_SYSCALL_SIGALTSTACK_ARGSTR
}
probe nd_syscall.sigaltstack.return = kprobe.function("sys_sigaltstack").return,
kprobe.function("sys32_sigaltstack").return ?
{
@_SYSCALL_SIGALTSTACK_NAME
@SYSC_RETVALSTR(returnval())
}
%)
|
