%( CONFIG_GENERIC_SIGALTSTACK == "n" || kernel_v < "3.8" %? # sigaltstack ________________________________________________ # long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, # unsigned long r5, unsigned long r6, # unsigned long r7, unsigned long r8, # 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") { @_SYSCALL_SIGALTSTACK_NAME uss_uaddr = $uss uss_str = _stp_sigaltstack_u(uss_uaddr) uoss_uaddr = $uoss %(systemtap_v < "2.3" %? regs = $regs %) @_SYSCALL_SIGALTSTACK_ARGSTR } probe dw_syscall.sigaltstack.return = kernel.function("sys_sigaltstack").return { @_SYSCALL_SIGALTSTACK_NAME @SYSC_RETVALSTR($return) } # nd_sigaltstack _____________________________________________________ probe nd_syscall.sigaltstack = kprobe.function("sys_sigaltstack") { @_SYSCALL_SIGALTSTACK_NAME asmlinkage() uss_uaddr = pointer_arg(1) uss_str = _stp_sigaltstack_u(uss_uaddr) uoss_uaddr = pointer_arg(2) %(systemtap_v < "2.3" %? regs = pointer_arg(7) %) @_SYSCALL_SIGALTSTACK_ARGSTR } probe nd_syscall.sigaltstack.return = kprobe.function("sys_sigaltstack").return { @_SYSCALL_SIGALTSTACK_NAME @SYSC_RETVALSTR(returnval()) } # sys32_sigaltstack ________________________________________ # # int compat_sys_sigaltstack(u32 __new, u32 __old, int r5, # int r6, int r7, int r8, struct pt_regs *regs) # int sys32_sigaltstack(u32 __new, u32 __old, int r5, # int r6, int r7, int r8, struct pt_regs *regs) # probe syscall.sys32_sigaltstack = dw_syscall.sys32_sigaltstack !, nd_syscall.sys32_sigaltstack ? {} probe syscall.sys32_sigaltstack.return = dw_syscall.sys32_sigaltstack.return !, nd_syscall.sys32_sigaltstack.return ? {} # dw_sys32_sigaltstack _____________________________________________________ probe dw_syscall.sys32_sigaltstack = kernel.function("compat_sys_sigaltstack").call !, kernel.function("sys32_sigaltstack").call ? { @_SYSCALL_SIGALTSTACK_NAME uss_uaddr = @__pointer($__new) uss_str = _stp_compat_sigaltstack_u(uss_uaddr) uoss_uaddr = @__pointer($__old) @_SYSCALL_SIGALTSTACK_ARGSTR } probe dw_syscall.sys32_sigaltstack.return = kernel.function("compat_sys_sigaltstack").return !, kernel.function("sys32_sigaltstack").return ? { @_SYSCALL_SIGALTSTACK_NAME @SYSC_RETVALSTR($return) } # nd_sys32_sigaltstack _____________________________________________________ probe nd_syscall.sys32_sigaltstack = kprobe.function("compat_sys_sigaltstack") !, kprobe.function("sys32_sigaltstack") ? { @_SYSCALL_SIGALTSTACK_NAME uss_uaddr = pointer_arg(1) uss_str = _stp_compat_sigaltstack_u(uss_uaddr) uoss_uaddr = pointer_arg(2) @_SYSCALL_SIGALTSTACK_ARGSTR } probe nd_syscall.sys32_sigaltstack.return = kprobe.function("compat_sys_sigaltstack").return !, kprobe.function("sys32_sigaltstack").return ? { @_SYSCALL_SIGALTSTACK_NAME @SYSC_RETVALSTR(returnval()) } %)