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%( 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.
#
#  int sys_execve(char __user *filenamei, 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($filenamei)
	args = __get_argv($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").call
{
	@_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())
}
%:
# We want to make sure this file isn't empty, so we'll add a "never"
# probe. Otherwise, the translator gives a warning.
probe never {}
%)