FM / x86

/usr/share/systemtap/tapset/linux/x86_64/

/usr/share/systemtap/tapset/linux/x86_64

Name	Size	Mode	Actions
aux_syscalls.stp	3665	0644	edit dl rm
syscall_num.stp	65658	0644	edit dl rm
sysc_arch_prctl.stp	3594	0644	edit dl rm
sysc_compat_execve.stp	1631	0644	edit dl rm
sysc_compat_fadvise64.stp	8099	0644	edit dl rm
sysc_compat_fallocate.stp	4159	0644	edit dl rm
sysc_compat_ftruncate64.stp	3755	0644	edit dl rm
sysc_compat_lookup_dcookie.stp	4272	0644	edit dl rm
sysc_compat_readahead.stp	3692	0644	edit dl rm
sysc_compat_truncate64.stp	4085	0644	edit dl rm
sysc_execve.stp	1655	0644	edit dl rm
sysc_get_thread_area.stp	3555	0644	edit dl rm
sysc_iopl.stp	2571	0644	edit dl rm
sysc_mmap.stp	4136	0644	edit dl rm
sysc_mmap2.stp	2683	0644	edit dl rm
sysc_pipe32.stp	1572	0644	edit dl rm
sysc_set_thread_area.stp	3499	0644	edit dl rm
sysc_sigaltstack.stp	2296	0644	edit dl rm
sysc_sysctl32.stp	1143	0644	edit dl rm
sysc_vm86_warning.stp	1200	0644	edit dl rm

Edit: /usr/share/systemtap/tapset/linux/x86_64/sysc_execve.stp (1655B)

@define _SYSCALL_EXECVE_NAME
%(
	name = "execve"
%)

@define _SYSCALL_EXECVE_ARGSTR
%(
	argstr = sprintf("%s, %s, %s", filename, args, env_str)
%)

probe syscall.execve = dw_syscall.execve !, nd_syscall.execve {}
probe syscall.execve.return = dw_syscall.execve.return !,
                              nd_syscall.execve.return {}

# dw_execve _____________________________________________________

probe dw_syscall.execve = kernel.function("sys_execve").call
{
	@_SYSCALL_EXECVE_NAME
	filename = user_string_quoted($name)
	args = __get_argv($argv, 0)
	env_str = __get_argv($envp, 0)
	@_SYSCALL_EXECVE_ARGSTR
}
probe dw_syscall.execve.return = kernel.function("sys_execve").return
{
	@_SYSCALL_EXECVE_NAME
	@SYSC_RETVALSTR($return)
}

# nd_execve _____________________________________________________

probe nd_syscall.execve = kprobe.function("sys_execve")
{
	@_SYSCALL_EXECVE_NAME
	filename = user_string_quoted(pointer_arg(1))
	args = __get_argv(pointer_arg(2), 0)
	env_str = __get_argv(pointer_arg(3), 0)
	@_SYSCALL_EXECVE_ARGSTR
}
probe nd_syscall.execve.return = kprobe.function("sys_execve").return
{
	@_SYSCALL_EXECVE_NAME
	@SYSC_RETVALSTR(returnval())
}
%)

%( kernel_v < "3.7" %? # execve _____________________________________________________ # # In kernels < 3.7, sys_execve() was in arch-specific code (and had # varying arguments). It was just a wrapper around generic # do_execve(), but the wrapper could error out before calling # do_execve(). So, we'll have to handle it in arch-specific tapset # code to catch all calls. # # long sys_execve(char __user *name, char __user * __user *argv, # char __user * __user *envp, struct pt_regs regs) @define _SYSCALL_EXECVE_NAME %( name = "execve" %) @define _SYSCALL_EXECVE_ARGSTR %( argstr = sprintf("%s, %s, %s", filename, args, env_str) %) probe syscall.execve = dw_syscall.execve !, nd_syscall.execve {} probe syscall.execve.return = dw_syscall.execve.return !, nd_syscall.execve.return {} # dw_execve _____________________________________________________ probe dw_syscall.execve = kernel.function("sys_execve").call { @_SYSCALL_EXECVE_NAME filename = user_string_quoted($name) args = __get_argv($argv, 0) env_str = __get_argv($envp, 0) @_SYSCALL_EXECVE_ARGSTR } probe dw_syscall.execve.return = kernel.function("sys_execve").return { @_SYSCALL_EXECVE_NAME @SYSC_RETVALSTR($return) } # nd_execve _____________________________________________________ probe nd_syscall.execve = kprobe.function("sys_execve") { @_SYSCALL_EXECVE_NAME filename = user_string_quoted(pointer_arg(1)) args = __get_argv(pointer_arg(2), 0) env_str = __get_argv(pointer_arg(3), 0) @_SYSCALL_EXECVE_ARGSTR } probe nd_syscall.execve.return = kprobe.function("sys_execve").return { @_SYSCALL_EXECVE_NAME @SYSC_RETVALSTR(returnval()) } %)