| # Copyright 2017 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Unit tests for patch_native_library.py.""" |
| |
| import unittest |
| |
| import patch_native_library |
| |
| |
| class PatchNativeLibraryTestCase(unittest.TestCase): |
| _SYMBOL_LINES = """002f7ee0 <baz>: |
| 2f7ee0: b570 push {r4, r5, r6, lr} |
| 2f7ee2: 4e09 ldr r6, [pc, #36] ; (2f7f08 <baz+0x28>) |
| 2f7ee4: 4674 mov r4, lr |
| 2f7ee6: 4605 mov r5, r0 |
| 2f7ee8: 4621 mov r1, r4 |
| 2f7eea: 447e add r6, pc |
| 2f7eec: 4630 mov r0, r6 |
| 2f7eee: f7ff ffa9 bl\t2f7e44 <__cyg_profile_func_enter> |
| 2f7ef2: 4806 ldr r0, [pc, #24] ; (2f7f0c <baz+0x2c>) |
| 2f7ef4: 2101 movs r1, #1 |
| 2f7ef6: 4478 add r0, pc |
| 2f7ef8: 7001 strb r1, [r0, #0] |
| 2f7efa: 4630 mov r0, r6 |
| 2f7efc: 4621 mov r1, r4 |
| 2f7efe: f3f3 ef58 blx\t6ebdb0 <bar+0x5c> |
| 2f7f02: 4628 mov r0, r5 |
| 2f7f04: bd70 pop {r4, r5, r6, pc} |
| 2f7f06: bf00 nop |
| 2f7f08: fffffff3 .word 0xfffffff3 |
| 2f7f0c: 101bdfef .word 0x101bdfef |
| """ |
| def testSymbolDataParsing(self): |
| lines = self._SYMBOL_LINES.split('\n') |
| symbol_data = patch_native_library.SymbolData.FromObjdumpLines(lines) |
| self.assertEquals("baz", symbol_data.name) |
| self.assertEquals(int("002f7ee0", 16), symbol_data.offset) |
| self.assertEquals([int("2f7eee", 16)], symbol_data.bl_enter) |
| self.assertEquals([], symbol_data.bl_exit) |
| self.assertEquals([(int("2f7efe", 16), ("bar+0x5c"))], symbol_data.blx) |
| |
| def testFindDuplicatedInstrumentationCals(self): |
| symbols_data = [ |
| patch_native_library.SymbolData( |
| "foo", 1000, [123, 124], [125], [(126, "bar+0x12"), |
| (127, "foo+0x12")])] |
| blx_target_to_symbol_name = {"bar+0x12": "__cyg_profile_func_enter"} |
| offsets = patch_native_library.FindDuplicatedInstrumentationCalls( |
| symbols_data, blx_target_to_symbol_name) |
| # Not the first enter call, and not the unmatched blx. |
| self.assertSetEqual(set([124, 125, 126]), set(offsets)) |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |
