libdrmtap.map

# Exported ABI for libdrmtap.so — the public entry points from include/drmtap.h
# and NOTHING else. Every internal cross-module symbol (drmtap_set_error,
# drmtap_gpu_*_process, drmtap_helper_*, drmtap_ensure_buf, ...) is made local,
# so it cannot be resolved via dlsym from another module. This shrinks the
# attack/ABI surface of the .so that the privileged service dlopen()s — the
# hardening item raised in review. A new public function MUST be added here or
# a consumer link will fail (that link error is the intended drift alarm).
#
# ANONYMOUS version node on purpose: it hides the internals WITHOUT introducing
# symbol versioning, so the public symbols stay unversioned (drmtap_open, not
# drmtap_open@@NODE) — byte-for-byte the same export names 0.4.10 and earlier
# shipped. We are not committing to an ABI-versioning scheme, only trimming the
# exported set.
{
    global:
        drmtap_version;
        drmtap_open;
        drmtap_open_render;
        drmtap_list_devices;
        drmtap_render_node;
        drmtap_close;
        drmtap_list_displays;
        drmtap_displays_changed;
        drmtap_grab;
        drmtap_grab_mapped;
        drmtap_grab_mapped_fast;
        drmtap_grab_desc;
        drmtap_convert_dmabuf;
        drmtap_frame_release;
        drmtap_frame_owns_data;
        drmtap_get_cursor;
        drmtap_cursor_hotspot_valid;
        drmtap_cursor_release;
        drmtap_error;
        drmtap_gpu_driver;
        drmtap_plane_rotation;
        drmtap_crtc_refresh;
        drmtap_drm_fd;
        drmtap_set_output_buffer;
        drmtap_deswizzle;
        drmtap_convert_format;
        drmtap_tonemap_hdr10;
        drmtap_diff_frames;
    local:
        *;
};