%PDF-
%PDF-
Mini Shell
Mini Shell
%( CONFIG_GENERIC_SIGALTSTACK == "n" || kernel_v < "3.8" %?
# sigaltstack _______________________________________________
# asmlinkage long
# sys_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, long arg2,
# long arg3, long arg4, long arg5, long arg6, long arg7,
# struct pt_regs regs)
#
@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")
{
@_SYSCALL_SIGALTSTACK_NAME
%(systemtap_v <= "1.4" %?
ss_uaddr = $uss
oss_uaddr = $uoss
%)
uss_uaddr = $uss
uoss_uaddr = $uoss
%(systemtap_v < "2.3" %?
regs = &$regs
%)
uss_str = _stp_sigaltstack_u(uss_uaddr)
@_SYSCALL_SIGALTSTACK_ARGSTR
}
probe dw_syscall.sigaltstack.return = kernel.function("sys_sigaltstack").return
{
@_SYSCALL_SIGALTSTACK_NAME
@SYSC_RETVALSTR($return)
}
# nd_sigaltstack _____________________________________________________
probe nd_syscall.sigaltstack = kprobe.function("sys_sigaltstack")
{
@_SYSCALL_SIGALTSTACK_NAME
asmlinkage()
uss_uaddr = pointer_arg(1)
uoss_uaddr = pointer_arg(2)
%(systemtap_v <= "2.8" %?
ss_uaddr = uss_uaddr
oss_uaddr = uoss_uaddr
%)
uss_str = _stp_sigaltstack_u(uss_uaddr)
@_SYSCALL_SIGALTSTACK_ARGSTR
}
probe nd_syscall.sigaltstack.return = kprobe.function("sys_sigaltstack").return
{
@_SYSCALL_SIGALTSTACK_NAME
@SYSC_RETVALSTR(returnval())
}
%)
Zerion Mini Shell 1.0