SUMMARY
Add execute rights to a VMO.
Declaration
#include <zircon/syscalls.h>
zx_status_t zx_vmo_replace_as_executable(zx_handle_t handle,
zx_handle_t vmex,
zx_handle_t* out);
Description
zx_vmo_replace_as_executable() creates a replacement for handle, referring
to the same underlying virtual memory object (VMO),
adding the right ZX_RIGHT_EXECUTE.
handle is always invalidated.
Rights
handle must be of type ZX_OBJ_TYPE_VMO.
vmex must have resource kind ZX_RSRC_KIND_SYSTEM with base
ZX_RSRC_SYSTEM_VMEX_BASE.
Return value
zx_vmo_replace_as_executable() returns ZX_OK on success. In the event
of failure, a negative error value is returned.
Errors
ZX_ERR_BAD_HANDLE handle isn't a valid VM object handle, or
vmex isn't a valid ZX_RSRC_KIND_SYSTEM resource handle with base
ZX_RSRC_SYSTEM_VMEX_BASE.
ZX_ERR_NO_MEMORY Failure due to lack of memory.
There is no good way for userspace to handle this (unlikely) error.
In a future build this error will no longer occur.