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-rwxr-xr-xcontrib/devtools/test-symbol-check.py162
1 files changed, 162 insertions, 0 deletions
diff --git a/contrib/devtools/test-symbol-check.py b/contrib/devtools/test-symbol-check.py
new file mode 100755
index 0000000000..18ed7d61e0
--- /dev/null
+++ b/contrib/devtools/test-symbol-check.py
@@ -0,0 +1,162 @@
+#!/usr/bin/env python3
+# Copyright (c) 2020 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+'''
+Test script for symbol-check.py
+'''
+import subprocess
+import unittest
+
+def call_symbol_check(cc, source, executable, options):
+ subprocess.run([cc,source,'-o',executable] + options, check=True)
+ p = subprocess.run(['./contrib/devtools/symbol-check.py',executable], stdout=subprocess.PIPE, universal_newlines=True)
+ return (p.returncode, p.stdout.rstrip())
+
+def get_machine(cc):
+ p = subprocess.run([cc,'-dumpmachine'], stdout=subprocess.PIPE, universal_newlines=True)
+ return p.stdout.rstrip()
+
+class TestSymbolChecks(unittest.TestCase):
+ def test_ELF(self):
+ source = 'test1.c'
+ executable = 'test1'
+ cc = 'gcc'
+
+ # there's no way to do this test for RISC-V at the moment; bionic's libc is 2.27
+ # and we allow all symbols from 2.27.
+ if 'riscv' in get_machine(cc):
+ self.skipTest("test not available for RISC-V")
+
+ # memfd_create was introduced in GLIBC 2.27, so is newer than the upper limit of
+ # all but RISC-V but still available on bionic
+ with open(source, 'w', encoding="utf8") as f:
+ f.write('''
+ #define _GNU_SOURCE
+ #include <sys/mman.h>
+
+ int memfd_create(const char *name, unsigned int flags);
+
+ int main()
+ {
+ memfd_create("test", 0);
+ return 0;
+ }
+ ''')
+
+ self.assertEqual(call_symbol_check(cc, source, executable, []),
+ (1, executable + ': symbol memfd_create from unsupported version GLIBC_2.27\n' +
+ executable + ': failed IMPORTED_SYMBOLS'))
+
+ # -lutil is part of the libc6 package so a safe bet that it's installed
+ # it's also out of context enough that it's unlikely to ever become a real dependency
+ source = 'test2.c'
+ executable = 'test2'
+ with open(source, 'w', encoding="utf8") as f:
+ f.write('''
+ #include <utmp.h>
+
+ int main()
+ {
+ login(0);
+ return 0;
+ }
+ ''')
+
+ self.assertEqual(call_symbol_check(cc, source, executable, ['-lutil']),
+ (1, executable + ': NEEDED library libutil.so.1 is not allowed\n' +
+ executable + ': failed LIBRARY_DEPENDENCIES'))
+
+ # finally, check a conforming file that simply uses a math function
+ source = 'test3.c'
+ executable = 'test3'
+ with open(source, 'w', encoding="utf8") as f:
+ f.write('''
+ #include <math.h>
+
+ int main()
+ {
+ return (int)pow(2.0, 4.0);
+ }
+ ''')
+
+ self.assertEqual(call_symbol_check(cc, source, executable, ['-lm']),
+ (0, ''))
+
+ def test_MACHO(self):
+ source = 'test1.c'
+ executable = 'test1'
+ cc = 'clang'
+
+ with open(source, 'w', encoding="utf8") as f:
+ f.write('''
+ #include <expat.h>
+
+ int main()
+ {
+ XML_ExpatVersion();
+ return 0;
+ }
+
+ ''')
+
+ self.assertEqual(call_symbol_check(cc, source, executable, ['-lexpat']),
+ (1, 'libexpat.1.dylib is not in ALLOWED_LIBRARIES!\n' +
+ executable + ': failed DYNAMIC_LIBRARIES'))
+
+ source = 'test2.c'
+ executable = 'test2'
+ with open(source, 'w', encoding="utf8") as f:
+ f.write('''
+ #include <CoreGraphics/CoreGraphics.h>
+
+ int main()
+ {
+ CGMainDisplayID();
+ return 0;
+ }
+ ''')
+
+ self.assertEqual(call_symbol_check(cc, source, executable, ['-framework', 'CoreGraphics']),
+ (0, ''))
+
+ def test_PE(self):
+ source = 'test1.c'
+ executable = 'test1.exe'
+ cc = 'x86_64-w64-mingw32-gcc'
+
+ with open(source, 'w', encoding="utf8") as f:
+ f.write('''
+ #include <pdh.h>
+
+ int main()
+ {
+ PdhConnectMachineA(NULL);
+ return 0;
+ }
+ ''')
+
+ self.assertEqual(call_symbol_check(cc, source, executable, ['-lpdh']),
+ (1, 'pdh.dll is not in ALLOWED_LIBRARIES!\n' +
+ executable + ': failed DYNAMIC_LIBRARIES'))
+
+ source = 'test2.c'
+ executable = 'test2.exe'
+ with open(source, 'w', encoding="utf8") as f:
+ f.write('''
+ #include <windows.h>
+
+ int main()
+ {
+ CoFreeUnusedLibrariesEx(0,0);
+ return 0;
+ }
+ ''')
+
+ self.assertEqual(call_symbol_check(cc, source, executable, ['-lole32']),
+ (0, ''))
+
+
+if __name__ == '__main__':
+ unittest.main()
+