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# nbdkit
# Copyright Red Hat
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the name of Red Hat nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
# This linker script controls the visibility of symbols in the final
# nbdkit binary. We want to export some symbols to plugins, but at
# the same time we don't want plugins to be able to call arbitrary
# functions from nbdkit, so this script lists only the symbols we want
# to export.
{
# The functions we want plugins and filters to call.
global:
nbdkit_absolute_path;
nbdkit_add_export;
nbdkit_add_extent;
nbdkit_context_get_backend;
nbdkit_context_set_next;
nbdkit_debug;
nbdkit_disconnect;
nbdkit_error;
nbdkit_export_name;
nbdkit_exports_count;
nbdkit_exports_free;
nbdkit_exports_new;
nbdkit_extents_aligned;
nbdkit_extents_count;
nbdkit_extents_free;
nbdkit_extents_full;
nbdkit_extents_new;
nbdkit_get_export;
nbdkit_get_extent;
nbdkit_is_tls;
nbdkit_nanosleep;
nbdkit_next_context_close;
nbdkit_next_context_open;
nbdkit_parse_bool;
nbdkit_parse_delay;
nbdkit_parse_int16_t;
nbdkit_parse_int32_t;
nbdkit_parse_int64_t;
nbdkit_parse_int8_t;
nbdkit_parse_int;
nbdkit_parse_probability;
nbdkit_parse_size;
nbdkit_parse_uint16_t;
nbdkit_parse_uint32_t;
nbdkit_parse_uint64_t;
nbdkit_parse_uint8_t;
nbdkit_parse_unsigned;
nbdkit_peer_gid;
nbdkit_peer_name;
nbdkit_peer_pid;
nbdkit_peer_security_context;
nbdkit_peer_tls_dn;
nbdkit_peer_tls_issuer_dn;
nbdkit_peer_uid;
nbdkit_printf_intern;
nbdkit_read_password;
nbdkit_realpath;
nbdkit_set_error;
nbdkit_shutdown;
nbdkit_stdio_safe;
nbdkit_strdup_intern;
nbdkit_strndup_intern;
nbdkit_use_default_export;
nbdkit_vdebug;
nbdkit_verror;
nbdkit_vprintf_intern;
nbdkit_debug_*;
# For AFL++ to work:
__afl_*;
# The _IO_stdin_used symbol is used by the GNU libc determine which
# version of the I/O functions should be used. Not exporting it
# means that the "old" version is used, leading to crashes or other
# issues on architectures that were supported by glibc 2.0.
_IO_stdin_used;
# Everything else is hidden.
local: *;
};
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