src/internal/fuchsia/abigen/defs.go

package abigen

// SysArg represents an arg to a vDSO-exported syscall.
type SysArg struct {
	Name       string  // Name represents the name of the argument.
	Type       SysType // Type represents the type of the argument.
	Constraint string  // Constraint represents constraints on the argument (in/out/inout).
}

// SysDef represents a definition of a vDSO-exported syscall.
type SysDef struct {
	Name     string   // Name is the name of this syscall definition.
	Ret      SysType  // Ret is the return type of the syscall.
	Attrs    []string // Attrs contains one or more attributes of the syscall.
	Args     []SysArg // Args represents the arguments taken by the syscall.
	VDSOCall bool     // VDSOCall represents whether the syscall is returned directly from the vDSO.
}

// GoName returns a string representing the Go name of the syscall in the syscall package.
func (d *SysDef) GoName() string {
	if d.Exported() {
		return "Sys_" + d.Name
	}
	return "sys_" + d.Name
}

// Exported determines whether a particular syscall definition should be exported.
func (d *SysDef) Exported() bool {
	switch d.Name {
	case "handle_duplicate",
		"object_set_profile",
		"object_wait_many",
		"channel_create",
		"channel_read",
		"channel_read_etc",
		"channel_write",
		"pci_get_bar",
		"pci_map_interrupt",
		"pci_query_irq_mode",
		"pci_set_irq_mode",
		"pci_init",
		"pci_add_subtract_to_range",
		"socket_create",
		"socket_read",
		"socket_write",
		"socket_accept",
		"socket_share",
		"system_get_dcache_line_size",
		"system_get_features",
		"vmar_allocate",
		"vmar_allocate_old",
		"vmar_map_old",
		"vmar_protect_old",
		"vmar_destroy",
		"vmo_read",
		"vmo_write",
		"vmo_get_size",
		"vmo_set_size",
		"vmo_op_range",
		"vmo_replace_as_executable":
		return false
	default:
		return true
	}
}