1 files changed, 73 insertions, 0 deletions
diff --git a/fluent-bit/lib/librdkafka-2.1.0/lds-gen.py b/fluent-bit/lib/librdkafka-2.1.0/lds-gen.py
new file mode 100755
index 000000000..44c718d13
--- /dev/null
+++ b/fluent-bit/lib/librdkafka-2.1.0/lds-gen.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+#
+# librdkafka - Apache Kafka C library
+#
+# Copyright (c) 2018 Magnus Edenhill
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice,
+#    this list of conditions and the following disclaimer.
+# 2. 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.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT OWNER 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.
+
+#
+# Generate linker script to only expose symbols of the public API
+#
+
+import sys
+import re
+
+
+if __name__ == '__main__':
+
+    funcs = list()
+    last_line = ''
+
+    for line in sys.stdin:
+        if line.startswith('typedef'):
+            last_line = line
+            continue
+        m = re.match(r'^(\S+.*\s+\**)?(rd_kafka_[\w_]+)\s*\([^)]', line)
+        if m:
+            sym = m.group(2)
+            # Ignore static (unused) functions
+            m2 = re.match(
+                r'(RD_UNUSED|__attribute__\(\(unused\)\))',
+                last_line)
+            if not m2:
+                funcs.append(sym)
+            last_line = ''
+        else:
+            last_line = line
+
+    # Special symbols not covered by above matches or not exposed in
+    # the public header files.
+    funcs.append('rd_ut_coverage_check')
+
+    print('# Automatically generated by lds-gen.py - DO NOT EDIT')
+    print('{\n global:')
+    if len(funcs) == 0:
+        print('    *;')
+    else:
+        for f in sorted(funcs):
+            print('    %s;' % f)
+
+        print('local:\n    *;')
+
+    print('};')