How to only map to ssbo that have not any copy?

when use ssbo in compute shader ,can only map such as eglimage blow and have not any copy? or have other method to use ssbo that have not any copy

    curImage = eglCreateImageKHR(Display, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, 
	(EGLClientBuffer)((GraphicBuffer *)userData->input_image_cur)->getNativeBuffer(), 0);
glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, (GLeglImageOES)curImage);

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