diff options
Diffstat (limited to 'extra/stack_analyzer/stack_analyzer_unittest.py')
| -rwxr-xr-x | extra/stack_analyzer/stack_analyzer_unittest.py | 1777 |
1 files changed, 970 insertions, 807 deletions
diff --git a/extra/stack_analyzer/stack_analyzer_unittest.py b/extra/stack_analyzer/stack_analyzer_unittest.py index c36fa9da45..23a8fb93ea 100755 --- a/extra/stack_analyzer/stack_analyzer_unittest.py +++ b/extra/stack_analyzer/stack_analyzer_unittest.py @@ -1,830 +1,993 @@ #!/usr/bin/env python3 -# Copyright 2017 The Chromium OS Authors. All rights reserved. +# Copyright 2017 The ChromiumOS Authors # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. -# -# Ignore indention messages, since legacy scripts use 2 spaces instead of 4. -# pylint: disable=bad-indentation,docstring-section-indent -# pylint: disable=docstring-trailing-quotes """Tests for Stack Analyzer classes and functions.""" from __future__ import print_function -import mock import os import subprocess import unittest +import mock # pylint:disable=import-error import stack_analyzer as sa class ObjectTest(unittest.TestCase): - """Tests for classes of basic objects.""" - - def testTask(self): - task_a = sa.Task('a', 'a_task', 1234) - task_b = sa.Task('b', 'b_task', 5678, 0x1000) - self.assertEqual(task_a, task_a) - self.assertNotEqual(task_a, task_b) - self.assertNotEqual(task_a, None) - - def testSymbol(self): - symbol_a = sa.Symbol(0x1234, 'F', 32, 'a') - symbol_b = sa.Symbol(0x234, 'O', 42, 'b') - self.assertEqual(symbol_a, symbol_a) - self.assertNotEqual(symbol_a, symbol_b) - self.assertNotEqual(symbol_a, None) - - def testCallsite(self): - callsite_a = sa.Callsite(0x1002, 0x3000, False) - callsite_b = sa.Callsite(0x1002, 0x3000, True) - self.assertEqual(callsite_a, callsite_a) - self.assertNotEqual(callsite_a, callsite_b) - self.assertNotEqual(callsite_a, None) - - def testFunction(self): - func_a = sa.Function(0x100, 'a', 0, []) - func_b = sa.Function(0x200, 'b', 0, []) - self.assertEqual(func_a, func_a) - self.assertNotEqual(func_a, func_b) - self.assertNotEqual(func_a, None) + """Tests for classes of basic objects.""" + + def testTask(self): + task_a = sa.Task("a", "a_task", 1234) + task_b = sa.Task("b", "b_task", 5678, 0x1000) + self.assertEqual(task_a, task_a) + self.assertNotEqual(task_a, task_b) + self.assertNotEqual(task_a, None) + + def testSymbol(self): + symbol_a = sa.Symbol(0x1234, "F", 32, "a") + symbol_b = sa.Symbol(0x234, "O", 42, "b") + self.assertEqual(symbol_a, symbol_a) + self.assertNotEqual(symbol_a, symbol_b) + self.assertNotEqual(symbol_a, None) + + def testCallsite(self): + callsite_a = sa.Callsite(0x1002, 0x3000, False) + callsite_b = sa.Callsite(0x1002, 0x3000, True) + self.assertEqual(callsite_a, callsite_a) + self.assertNotEqual(callsite_a, callsite_b) + self.assertNotEqual(callsite_a, None) + + def testFunction(self): + func_a = sa.Function(0x100, "a", 0, []) + func_b = sa.Function(0x200, "b", 0, []) + self.assertEqual(func_a, func_a) + self.assertNotEqual(func_a, func_b) + self.assertNotEqual(func_a, None) class ArmAnalyzerTest(unittest.TestCase): - """Tests for class ArmAnalyzer.""" - - def AppendConditionCode(self, opcodes): - rets = [] - for opcode in opcodes: - rets.extend(opcode + cc for cc in sa.ArmAnalyzer.CONDITION_CODES) - - return rets - - def testInstructionMatching(self): - jump_list = self.AppendConditionCode(['b', 'bx']) - jump_list += (list(opcode + '.n' for opcode in jump_list) + - list(opcode + '.w' for opcode in jump_list)) - for opcode in jump_list: - self.assertIsNotNone(sa.ArmAnalyzer.JUMP_OPCODE_RE.match(opcode)) - - self.assertIsNone(sa.ArmAnalyzer.JUMP_OPCODE_RE.match('bl')) - self.assertIsNone(sa.ArmAnalyzer.JUMP_OPCODE_RE.match('blx')) - - cbz_list = ['cbz', 'cbnz', 'cbz.n', 'cbnz.n', 'cbz.w', 'cbnz.w'] - for opcode in cbz_list: - self.assertIsNotNone(sa.ArmAnalyzer.CBZ_CBNZ_OPCODE_RE.match(opcode)) - - self.assertIsNone(sa.ArmAnalyzer.CBZ_CBNZ_OPCODE_RE.match('cbn')) - - call_list = self.AppendConditionCode(['bl', 'blx']) - call_list += list(opcode + '.n' for opcode in call_list) - for opcode in call_list: - self.assertIsNotNone(sa.ArmAnalyzer.CALL_OPCODE_RE.match(opcode)) - - self.assertIsNone(sa.ArmAnalyzer.CALL_OPCODE_RE.match('ble')) - - result = sa.ArmAnalyzer.CALL_OPERAND_RE.match('53f90 <get_time+0x18>') - self.assertIsNotNone(result) - self.assertEqual(result.group(1), '53f90') - self.assertEqual(result.group(2), 'get_time+0x18') - - result = sa.ArmAnalyzer.CBZ_CBNZ_OPERAND_RE.match('r6, 53f90 <get+0x0>') - self.assertIsNotNone(result) - self.assertEqual(result.group(1), '53f90') - self.assertEqual(result.group(2), 'get+0x0') - - self.assertIsNotNone(sa.ArmAnalyzer.PUSH_OPCODE_RE.match('push')) - self.assertIsNone(sa.ArmAnalyzer.PUSH_OPCODE_RE.match('pushal')) - self.assertIsNotNone(sa.ArmAnalyzer.STM_OPCODE_RE.match('stmdb')) - self.assertIsNone(sa.ArmAnalyzer.STM_OPCODE_RE.match('lstm')) - self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match('sub')) - self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match('subs')) - self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match('subw')) - self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match('sub.w')) - self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match('subs.w')) - - result = sa.ArmAnalyzer.SUB_OPERAND_RE.match('sp, sp, #1668 ; 0x684') - self.assertIsNotNone(result) - self.assertEqual(result.group(1), '1668') - result = sa.ArmAnalyzer.SUB_OPERAND_RE.match('sp, #1668') - self.assertIsNotNone(result) - self.assertEqual(result.group(1), '1668') - self.assertIsNone(sa.ArmAnalyzer.SUB_OPERAND_RE.match('sl, #1668')) - - def testAnalyzeFunction(self): - analyzer = sa.ArmAnalyzer() - symbol = sa.Symbol(0x10, 'F', 0x100, 'foo') - instructions = [ - (0x10, 'push', '{r4, r5, r6, r7, lr}'), - (0x12, 'subw', 'sp, sp, #16 ; 0x10'), - (0x16, 'movs', 'lr, r1'), - (0x18, 'beq.n', '26 <foo+0x26>'), - (0x1a, 'bl', '30 <foo+0x30>'), - (0x1e, 'bl', 'deadbeef <bar>'), - (0x22, 'blx', '0 <woo>'), - (0x26, 'push', '{r1}'), - (0x28, 'stmdb', 'sp!, {r4, r5, r6, r7, r8, r9, lr}'), - (0x2c, 'stmdb', 'sp!, {r4}'), - (0x30, 'stmdb', 'sp, {r4}'), - (0x34, 'bx.n', '10 <foo>'), - (0x36, 'bx.n', 'r3'), - (0x38, 'ldr', 'pc, [r10]'), - ] - (size, callsites) = analyzer.AnalyzeFunction(symbol, instructions) - self.assertEqual(size, 72) - expect_callsites = [sa.Callsite(0x1e, 0xdeadbeef, False), - sa.Callsite(0x22, 0x0, False), - sa.Callsite(0x34, 0x10, True), - sa.Callsite(0x36, None, True), - sa.Callsite(0x38, None, True)] - self.assertEqual(callsites, expect_callsites) + """Tests for class ArmAnalyzer.""" + + def AppendConditionCode(self, opcodes): + rets = [] + for opcode in opcodes: + rets.extend(opcode + cc for cc in sa.ArmAnalyzer.CONDITION_CODES) + + return rets + + def testInstructionMatching(self): + jump_list = self.AppendConditionCode(["b", "bx"]) + jump_list += list(opcode + ".n" for opcode in jump_list) + list( + opcode + ".w" for opcode in jump_list + ) + for opcode in jump_list: + self.assertIsNotNone(sa.ArmAnalyzer.JUMP_OPCODE_RE.match(opcode)) + + self.assertIsNone(sa.ArmAnalyzer.JUMP_OPCODE_RE.match("bl")) + self.assertIsNone(sa.ArmAnalyzer.JUMP_OPCODE_RE.match("blx")) + + cbz_list = ["cbz", "cbnz", "cbz.n", "cbnz.n", "cbz.w", "cbnz.w"] + for opcode in cbz_list: + self.assertIsNotNone( + sa.ArmAnalyzer.CBZ_CBNZ_OPCODE_RE.match(opcode) + ) + + self.assertIsNone(sa.ArmAnalyzer.CBZ_CBNZ_OPCODE_RE.match("cbn")) + + call_list = self.AppendConditionCode(["bl", "blx"]) + call_list += list(opcode + ".n" for opcode in call_list) + for opcode in call_list: + self.assertIsNotNone(sa.ArmAnalyzer.CALL_OPCODE_RE.match(opcode)) + + self.assertIsNone(sa.ArmAnalyzer.CALL_OPCODE_RE.match("ble")) + + result = sa.ArmAnalyzer.CALL_OPERAND_RE.match("53f90 <get_time+0x18>") + self.assertIsNotNone(result) + self.assertEqual(result.group(1), "53f90") + self.assertEqual(result.group(2), "get_time+0x18") + + result = sa.ArmAnalyzer.CBZ_CBNZ_OPERAND_RE.match("r6, 53f90 <get+0x0>") + self.assertIsNotNone(result) + self.assertEqual(result.group(1), "53f90") + self.assertEqual(result.group(2), "get+0x0") + + self.assertIsNotNone(sa.ArmAnalyzer.PUSH_OPCODE_RE.match("push")) + self.assertIsNone(sa.ArmAnalyzer.PUSH_OPCODE_RE.match("pushal")) + self.assertIsNotNone(sa.ArmAnalyzer.STM_OPCODE_RE.match("stmdb")) + self.assertIsNone(sa.ArmAnalyzer.STM_OPCODE_RE.match("lstm")) + self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match("sub")) + self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match("subs")) + self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match("subw")) + self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match("sub.w")) + self.assertIsNotNone(sa.ArmAnalyzer.SUB_OPCODE_RE.match("subs.w")) + + result = sa.ArmAnalyzer.SUB_OPERAND_RE.match("sp, sp, #1668 ; 0x684") + self.assertIsNotNone(result) + self.assertEqual(result.group(1), "1668") + result = sa.ArmAnalyzer.SUB_OPERAND_RE.match("sp, #1668") + self.assertIsNotNone(result) + self.assertEqual(result.group(1), "1668") + self.assertIsNone(sa.ArmAnalyzer.SUB_OPERAND_RE.match("sl, #1668")) + + def testAnalyzeFunction(self): + analyzer = sa.ArmAnalyzer() + symbol = sa.Symbol(0x10, "F", 0x100, "foo") + instructions = [ + (0x10, "push", "{r4, r5, r6, r7, lr}"), + (0x12, "subw", "sp, sp, #16 ; 0x10"), + (0x16, "movs", "lr, r1"), + (0x18, "beq.n", "26 <foo+0x26>"), + (0x1A, "bl", "30 <foo+0x30>"), + (0x1E, "bl", "deadbeef <bar>"), + (0x22, "blx", "0 <woo>"), + (0x26, "push", "{r1}"), + (0x28, "stmdb", "sp!, {r4, r5, r6, r7, r8, r9, lr}"), + (0x2C, "stmdb", "sp!, {r4}"), + (0x30, "stmdb", "sp, {r4}"), + (0x34, "bx.n", "10 <foo>"), + (0x36, "bx.n", "r3"), + (0x38, "ldr", "pc, [r10]"), + ] + (size, callsites) = analyzer.AnalyzeFunction(symbol, instructions) + self.assertEqual(size, 72) + expect_callsites = [ + sa.Callsite(0x1E, 0xDEADBEEF, False), + sa.Callsite(0x22, 0x0, False), + sa.Callsite(0x34, 0x10, True), + sa.Callsite(0x36, None, True), + sa.Callsite(0x38, None, True), + ] + self.assertEqual(callsites, expect_callsites) class StackAnalyzerTest(unittest.TestCase): - """Tests for class StackAnalyzer.""" - - def setUp(self): - symbols = [sa.Symbol(0x1000, 'F', 0x15C, 'hook_task'), - sa.Symbol(0x2000, 'F', 0x51C, 'console_task'), - sa.Symbol(0x3200, 'O', 0x124, '__just_data'), - sa.Symbol(0x4000, 'F', 0x11C, 'touchpad_calc'), - sa.Symbol(0x5000, 'F', 0x12C, 'touchpad_calc.constprop.42'), - sa.Symbol(0x12000, 'F', 0x13C, 'trackpad_range'), - sa.Symbol(0x13000, 'F', 0x200, 'inlined_mul'), - sa.Symbol(0x13100, 'F', 0x200, 'inlined_mul'), - sa.Symbol(0x13100, 'F', 0x200, 'inlined_mul_alias'), - sa.Symbol(0x20000, 'O', 0x0, '__array'), - sa.Symbol(0x20010, 'O', 0x0, '__array_end'), - ] - tasklist = [sa.Task('HOOKS', 'hook_task', 2048, 0x1000), - sa.Task('CONSOLE', 'console_task', 460, 0x2000)] - # Array at 0x20000 that contains pointers to hook_task and console_task, - # with stride=8, offset=4 - rodata = (0x20000, [ 0xDEAD1000, 0x00001000, 0xDEAD2000, 0x00002000 ]) - options = mock.MagicMock(elf_path='./ec.RW.elf', - export_taskinfo='fake', - section='RW', - objdump='objdump', - addr2line='addr2line', - annotation=None) - self.analyzer = sa.StackAnalyzer(options, symbols, rodata, tasklist, {}) - - def testParseSymbolText(self): - symbol_text = ( - '0 g F .text e8 Foo\n' - '0000dead w F .text 000000e8 .hidden Bar\n' - 'deadbeef l O .bss 00000004 .hidden Woooo\n' - 'deadbee g O .rodata 00000008 __Hooo_ooo\n' - 'deadbee g .rodata 00000000 __foo_doo_coo_end\n' - ) - symbols = sa.ParseSymbolText(symbol_text) - expect_symbols = [sa.Symbol(0x0, 'F', 0xe8, 'Foo'), - sa.Symbol(0xdead, 'F', 0xe8, 'Bar'), - sa.Symbol(0xdeadbeef, 'O', 0x4, 'Woooo'), - sa.Symbol(0xdeadbee, 'O', 0x8, '__Hooo_ooo'), - sa.Symbol(0xdeadbee, 'O', 0x0, '__foo_doo_coo_end')] - self.assertEqual(symbols, expect_symbols) - - def testParseRoData(self): - rodata_text = ( - '\n' - 'Contents of section .rodata:\n' - ' 20000 dead1000 00100000 dead2000 00200000 He..f.He..s.\n' - ) - rodata = sa.ParseRoDataText(rodata_text) - expect_rodata = (0x20000, - [ 0x0010adde, 0x00001000, 0x0020adde, 0x00002000 ]) - self.assertEqual(rodata, expect_rodata) - - def testLoadTasklist(self): - def tasklist_to_taskinfos(pointer, tasklist): - taskinfos = [] - for task in tasklist: - taskinfos.append(sa.TaskInfo(name=task.name.encode('utf-8'), - routine=task.routine_name.encode('utf-8'), - stack_size=task.stack_max_size)) - - TaskInfoArray = sa.TaskInfo * len(taskinfos) - pointer.contents.contents = TaskInfoArray(*taskinfos) - return len(taskinfos) - - def ro_taskinfos(pointer): - return tasklist_to_taskinfos(pointer, expect_ro_tasklist) - - def rw_taskinfos(pointer): - return tasklist_to_taskinfos(pointer, expect_rw_tasklist) - - expect_ro_tasklist = [ - sa.Task('HOOKS', 'hook_task', 2048, 0x1000), - ] - - expect_rw_tasklist = [ - sa.Task('HOOKS', 'hook_task', 2048, 0x1000), - sa.Task('WOOKS', 'hook_task', 4096, 0x1000), - sa.Task('CONSOLE', 'console_task', 460, 0x2000), - ] - - export_taskinfo = mock.MagicMock( - get_ro_taskinfos=mock.MagicMock(side_effect=ro_taskinfos), - get_rw_taskinfos=mock.MagicMock(side_effect=rw_taskinfos)) - - tasklist = sa.LoadTasklist('RO', export_taskinfo, self.analyzer.symbols) - self.assertEqual(tasklist, expect_ro_tasklist) - tasklist = sa.LoadTasklist('RW', export_taskinfo, self.analyzer.symbols) - self.assertEqual(tasklist, expect_rw_tasklist) - - def testResolveAnnotation(self): - self.analyzer.annotation = {} - (add_rules, remove_rules, invalid_sigtxts) = self.analyzer.LoadAnnotation() - self.assertEqual(add_rules, {}) - self.assertEqual(remove_rules, []) - self.assertEqual(invalid_sigtxts, set()) - - self.analyzer.annotation = {'add': None, 'remove': None} - (add_rules, remove_rules, invalid_sigtxts) = self.analyzer.LoadAnnotation() - self.assertEqual(add_rules, {}) - self.assertEqual(remove_rules, []) - self.assertEqual(invalid_sigtxts, set()) - - self.analyzer.annotation = { - 'add': None, - 'remove': [ - [['a', 'b'], ['0', '[', '2'], 'x'], - [['a', 'b[x:3]'], ['0', '1', '2'], 'x'], - ], - } - (add_rules, remove_rules, invalid_sigtxts) = self.analyzer.LoadAnnotation() - self.assertEqual(add_rules, {}) - self.assertEqual(list.sort(remove_rules), list.sort([ - [('a', None, None), ('1', None, None), ('x', None, None)], - [('a', None, None), ('0', None, None), ('x', None, None)], - [('a', None, None), ('2', None, None), ('x', None, None)], - [('b', os.path.abspath('x'), 3), ('1', None, None), ('x', None, None)], - [('b', os.path.abspath('x'), 3), ('0', None, None), ('x', None, None)], - [('b', os.path.abspath('x'), 3), ('2', None, None), ('x', None, None)], - ])) - self.assertEqual(invalid_sigtxts, {'['}) - - self.analyzer.annotation = { - 'add': { - 'touchpad_calc': [ dict(name='__array', stride=8, offset=4) ], + """Tests for class StackAnalyzer.""" + + def setUp(self): + symbols = [ + sa.Symbol(0x1000, "F", 0x15C, "hook_task"), + sa.Symbol(0x2000, "F", 0x51C, "console_task"), + sa.Symbol(0x3200, "O", 0x124, "__just_data"), + sa.Symbol(0x4000, "F", 0x11C, "touchpad_calc"), + sa.Symbol(0x5000, "F", 0x12C, "touchpad_calc.constprop.42"), + sa.Symbol(0x12000, "F", 0x13C, "trackpad_range"), + sa.Symbol(0x13000, "F", 0x200, "inlined_mul"), + sa.Symbol(0x13100, "F", 0x200, "inlined_mul"), + sa.Symbol(0x13100, "F", 0x200, "inlined_mul_alias"), + sa.Symbol(0x20000, "O", 0x0, "__array"), + sa.Symbol(0x20010, "O", 0x0, "__array_end"), + ] + tasklist = [ + sa.Task("HOOKS", "hook_task", 2048, 0x1000), + sa.Task("CONSOLE", "console_task", 460, 0x2000), + ] + # Array at 0x20000 that contains pointers to hook_task and console_task, + # with stride=8, offset=4 + rodata = (0x20000, [0xDEAD1000, 0x00001000, 0xDEAD2000, 0x00002000]) + options = mock.MagicMock( + elf_path="./ec.RW.elf", + export_taskinfo="fake", + section="RW", + objdump="objdump", + addr2line="addr2line", + annotation=None, + ) + self.analyzer = sa.StackAnalyzer(options, symbols, rodata, tasklist, {}) + + def testParseSymbolText(self): + symbol_text = ( + "0 g F .text e8 Foo\n" + "0000dead w F .text 000000e8 .hidden Bar\n" + "deadbeef l O .bss 00000004 .hidden Woooo\n" + "deadbee g O .rodata 00000008 __Hooo_ooo\n" + "deadbee g .rodata 00000000 __foo_doo_coo_end\n" + ) + symbols = sa.ParseSymbolText(symbol_text) + expect_symbols = [ + sa.Symbol(0x0, "F", 0xE8, "Foo"), + sa.Symbol(0xDEAD, "F", 0xE8, "Bar"), + sa.Symbol(0xDEADBEEF, "O", 0x4, "Woooo"), + sa.Symbol(0xDEADBEE, "O", 0x8, "__Hooo_ooo"), + sa.Symbol(0xDEADBEE, "O", 0x0, "__foo_doo_coo_end"), + ] + self.assertEqual(symbols, expect_symbols) + + def testParseRoData(self): + rodata_text = ( + "\n" + "Contents of section .rodata:\n" + " 20000 dead1000 00100000 dead2000 00200000 He..f.He..s.\n" + ) + rodata = sa.ParseRoDataText(rodata_text) + expect_rodata = ( + 0x20000, + [0x0010ADDE, 0x00001000, 0x0020ADDE, 0x00002000], + ) + self.assertEqual(rodata, expect_rodata) + + def testLoadTasklist(self): + def tasklist_to_taskinfos(pointer, tasklist): + taskinfos = [] + for task in tasklist: + taskinfos.append( + sa.TaskInfo( + name=task.name.encode("utf-8"), + routine=task.routine_name.encode("utf-8"), + stack_size=task.stack_max_size, + ) + ) + + TaskInfoArray = sa.TaskInfo * len(taskinfos) + pointer.contents.contents = TaskInfoArray(*taskinfos) + return len(taskinfos) + + def ro_taskinfos(pointer): + return tasklist_to_taskinfos(pointer, expect_ro_tasklist) + + def rw_taskinfos(pointer): + return tasklist_to_taskinfos(pointer, expect_rw_tasklist) + + expect_ro_tasklist = [ + sa.Task("HOOKS", "hook_task", 2048, 0x1000), + ] + + expect_rw_tasklist = [ + sa.Task("HOOKS", "hook_task", 2048, 0x1000), + sa.Task("WOOKS", "hook_task", 4096, 0x1000), + sa.Task("CONSOLE", "console_task", 460, 0x2000), + ] + + export_taskinfo = mock.MagicMock( + get_ro_taskinfos=mock.MagicMock(side_effect=ro_taskinfos), + get_rw_taskinfos=mock.MagicMock(side_effect=rw_taskinfos), + ) + + tasklist = sa.LoadTasklist("RO", export_taskinfo, self.analyzer.symbols) + self.assertEqual(tasklist, expect_ro_tasklist) + tasklist = sa.LoadTasklist("RW", export_taskinfo, self.analyzer.symbols) + self.assertEqual(tasklist, expect_rw_tasklist) + + def testResolveAnnotation(self): + self.analyzer.annotation = {} + ( + add_rules, + remove_rules, + invalid_sigtxts, + ) = self.analyzer.LoadAnnotation() + self.assertEqual(add_rules, {}) + self.assertEqual(remove_rules, []) + self.assertEqual(invalid_sigtxts, set()) + + self.analyzer.annotation = {"add": None, "remove": None} + ( + add_rules, + remove_rules, + invalid_sigtxts, + ) = self.analyzer.LoadAnnotation() + self.assertEqual(add_rules, {}) + self.assertEqual(remove_rules, []) + self.assertEqual(invalid_sigtxts, set()) + + self.analyzer.annotation = { + "add": None, + "remove": [ + [["a", "b"], ["0", "[", "2"], "x"], + [["a", "b[x:3]"], ["0", "1", "2"], "x"], + ], } - } - (add_rules, remove_rules, invalid_sigtxts) = self.analyzer.LoadAnnotation() - self.assertEqual(add_rules, { - ('touchpad_calc', None, None): - set([('console_task', None, None), ('hook_task', None, None)])}) - - funcs = { - 0x1000: sa.Function(0x1000, 'hook_task', 0, []), - 0x2000: sa.Function(0x2000, 'console_task', 0, []), - 0x4000: sa.Function(0x4000, 'touchpad_calc', 0, []), - 0x5000: sa.Function(0x5000, 'touchpad_calc.constprop.42', 0, []), - 0x13000: sa.Function(0x13000, 'inlined_mul', 0, []), - 0x13100: sa.Function(0x13100, 'inlined_mul', 0, []), - } - funcs[0x1000].callsites = [ - sa.Callsite(0x1002, None, False, None)] - # Set address_to_line_cache to fake the results of addr2line. - self.analyzer.address_to_line_cache = { - (0x1000, False): [('hook_task', os.path.abspath('a.c'), 10)], - (0x1002, False): [('toot_calc', os.path.abspath('t.c'), 1234)], - (0x2000, False): [('console_task', os.path.abspath('b.c'), 20)], - (0x4000, False): [('toudhpad_calc', os.path.abspath('a.c'), 20)], - (0x5000, False): [ - ('touchpad_calc.constprop.42', os.path.abspath('b.c'), 40)], - (0x12000, False): [('trackpad_range', os.path.abspath('t.c'), 10)], - (0x13000, False): [('inlined_mul', os.path.abspath('x.c'), 12)], - (0x13100, False): [('inlined_mul', os.path.abspath('x.c'), 12)], - } - self.analyzer.annotation = { - 'add': { - 'hook_task.lto.573': ['touchpad_calc.lto.2501[a.c]'], - 'console_task': ['touchpad_calc[b.c]', 'inlined_mul_alias'], - 'hook_task[q.c]': ['hook_task'], - 'inlined_mul[x.c]': ['inlined_mul'], - 'toot_calc[t.c:1234]': ['hook_task'], - }, - 'remove': [ - ['touchpad?calc['], - 'touchpad_calc', - ['touchpad_calc[a.c]'], - ['task_unk[a.c]'], - ['touchpad_calc[x/a.c]'], - ['trackpad_range'], - ['inlined_mul'], - ['inlined_mul', 'console_task', 'touchpad_calc[a.c]'], - ['inlined_mul', 'inlined_mul_alias', 'console_task'], - ['inlined_mul', 'inlined_mul_alias', 'console_task'], - ], - } - (add_rules, remove_rules, invalid_sigtxts) = self.analyzer.LoadAnnotation() - self.assertEqual(invalid_sigtxts, {'touchpad?calc['}) - - signature_set = set() - for src_sig, dst_sigs in add_rules.items(): - signature_set.add(src_sig) - signature_set.update(dst_sigs) - - for remove_sigs in remove_rules: - signature_set.update(remove_sigs) - - (signature_map, failed_sigs) = self.analyzer.MapAnnotation(funcs, - signature_set) - result = self.analyzer.ResolveAnnotation(funcs) - (add_set, remove_list, eliminated_addrs, failed_sigs) = result - - expect_signature_map = { - ('hook_task', None, None): {funcs[0x1000]}, - ('touchpad_calc', os.path.abspath('a.c'), None): {funcs[0x4000]}, - ('touchpad_calc', os.path.abspath('b.c'), None): {funcs[0x5000]}, - ('console_task', None, None): {funcs[0x2000]}, - ('inlined_mul_alias', None, None): {funcs[0x13100]}, - ('inlined_mul', os.path.abspath('x.c'), None): {funcs[0x13000], - funcs[0x13100]}, - ('inlined_mul', None, None): {funcs[0x13000], funcs[0x13100]}, - } - self.assertEqual(len(signature_map), len(expect_signature_map)) - for sig, funclist in signature_map.items(): - self.assertEqual(set(funclist), expect_signature_map[sig]) - - self.assertEqual(add_set, { - (funcs[0x1000], funcs[0x4000]), - (funcs[0x1000], funcs[0x1000]), - (funcs[0x2000], funcs[0x5000]), - (funcs[0x2000], funcs[0x13100]), - (funcs[0x13000], funcs[0x13000]), - (funcs[0x13000], funcs[0x13100]), - (funcs[0x13100], funcs[0x13000]), - (funcs[0x13100], funcs[0x13100]), - }) - expect_remove_list = [ - [funcs[0x4000]], - [funcs[0x13000]], - [funcs[0x13100]], - [funcs[0x13000], funcs[0x2000], funcs[0x4000]], - [funcs[0x13100], funcs[0x2000], funcs[0x4000]], - [funcs[0x13000], funcs[0x13100], funcs[0x2000]], - [funcs[0x13100], funcs[0x13100], funcs[0x2000]], - ] - self.assertEqual(len(remove_list), len(expect_remove_list)) - for remove_path in remove_list: - self.assertTrue(remove_path in expect_remove_list) - - self.assertEqual(eliminated_addrs, {0x1002}) - self.assertEqual(failed_sigs, { - ('touchpad?calc[', sa.StackAnalyzer.ANNOTATION_ERROR_INVALID), - ('touchpad_calc', sa.StackAnalyzer.ANNOTATION_ERROR_AMBIGUOUS), - ('hook_task[q.c]', sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND), - ('task_unk[a.c]', sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND), - ('touchpad_calc[x/a.c]', sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND), - ('trackpad_range', sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND), - }) - - def testPreprocessAnnotation(self): - funcs = { - 0x1000: sa.Function(0x1000, 'hook_task', 0, []), - 0x2000: sa.Function(0x2000, 'console_task', 0, []), - 0x4000: sa.Function(0x4000, 'touchpad_calc', 0, []), - } - funcs[0x1000].callsites = [ - sa.Callsite(0x1002, 0x1000, False, funcs[0x1000])] - funcs[0x2000].callsites = [ - sa.Callsite(0x2002, 0x1000, False, funcs[0x1000]), - sa.Callsite(0x2006, None, True, None), - ] - add_set = { - (funcs[0x2000], funcs[0x2000]), - (funcs[0x2000], funcs[0x4000]), - (funcs[0x4000], funcs[0x1000]), - (funcs[0x4000], funcs[0x2000]), - } - remove_list = [ - [funcs[0x1000]], - [funcs[0x2000], funcs[0x2000]], - [funcs[0x4000], funcs[0x1000]], - [funcs[0x2000], funcs[0x4000], funcs[0x2000]], - [funcs[0x4000], funcs[0x1000], funcs[0x4000]], - ] - eliminated_addrs = {0x2006} - - remaining_remove_list = self.analyzer.PreprocessAnnotation(funcs, - add_set, - remove_list, - eliminated_addrs) - - expect_funcs = { - 0x1000: sa.Function(0x1000, 'hook_task', 0, []), - 0x2000: sa.Function(0x2000, 'console_task', 0, []), - 0x4000: sa.Function(0x4000, 'touchpad_calc', 0, []), - } - expect_funcs[0x2000].callsites = [ - sa.Callsite(None, 0x4000, False, expect_funcs[0x4000])] - expect_funcs[0x4000].callsites = [ - sa.Callsite(None, 0x2000, False, expect_funcs[0x2000])] - self.assertEqual(funcs, expect_funcs) - self.assertEqual(remaining_remove_list, [ - [funcs[0x2000], funcs[0x4000], funcs[0x2000]], - ]) - - def testAndesAnalyzeDisassembly(self): - disasm_text = ( - '\n' - 'build/{BOARD}/RW/ec.RW.elf: file format elf32-nds32le' - '\n' - 'Disassembly of section .text:\n' - '\n' - '00000900 <wook_task>:\n' - ' ...\n' - '00001000 <hook_task>:\n' - ' 1000: fc 42\tpush25 $r10, #16 ! {$r6~$r10, $fp, $gp, $lp}\n' - ' 1004: 47 70\t\tmovi55 $r0, #1\n' - ' 1006: b1 13\tbnezs8 100929de <flash_command_write>\n' - ' 1008: 00 01 5c fc\tbne $r6, $r0, 2af6a\n' - '00002000 <console_task>:\n' - ' 2000: fc 00\t\tpush25 $r6, #0 ! {$r6, $fp, $gp, $lp} \n' - ' 2002: f0 0e fc c5\tjal 1000 <hook_task>\n' - ' 2006: f0 0e bd 3b\tj 53968 <get_program_memory_addr>\n' - ' 200a: de ad be ef\tswi.gp $r0, [ + #-11036]\n' - '00004000 <touchpad_calc>:\n' - ' 4000: 47 70\t\tmovi55 $r0, #1\n' - '00010000 <look_task>:' - ) - function_map = self.analyzer.AnalyzeDisassembly(disasm_text) - func_hook_task = sa.Function(0x1000, 'hook_task', 48, [ - sa.Callsite(0x1006, 0x100929de, True, None)]) - expect_funcmap = { - 0x1000: func_hook_task, - 0x2000: sa.Function(0x2000, 'console_task', 16, - [sa.Callsite(0x2002, 0x1000, False, func_hook_task), - sa.Callsite(0x2006, 0x53968, True, None)]), - 0x4000: sa.Function(0x4000, 'touchpad_calc', 0, []), - } - self.assertEqual(function_map, expect_funcmap) - - def testArmAnalyzeDisassembly(self): - disasm_text = ( - '\n' - 'build/{BOARD}/RW/ec.RW.elf: file format elf32-littlearm' - '\n' - 'Disassembly of section .text:\n' - '\n' - '00000900 <wook_task>:\n' - ' ...\n' - '00001000 <hook_task>:\n' - ' 1000: dead beef\tfake\n' - ' 1004: 4770\t\tbx lr\n' - ' 1006: b113\tcbz r3, 100929de <flash_command_write>\n' - ' 1008: 00015cfc\t.word 0x00015cfc\n' - '00002000 <console_task>:\n' - ' 2000: b508\t\tpush {r3, lr} ; malformed comments,; r0, r1 \n' - ' 2002: f00e fcc5\tbl 1000 <hook_task>\n' - ' 2006: f00e bd3b\tb.w 53968 <get_program_memory_addr>\n' - ' 200a: dead beef\tfake\n' - '00004000 <touchpad_calc>:\n' - ' 4000: 4770\t\tbx lr\n' - '00010000 <look_task>:' - ) - function_map = self.analyzer.AnalyzeDisassembly(disasm_text) - func_hook_task = sa.Function(0x1000, 'hook_task', 0, [ - sa.Callsite(0x1006, 0x100929de, True, None)]) - expect_funcmap = { - 0x1000: func_hook_task, - 0x2000: sa.Function(0x2000, 'console_task', 8, - [sa.Callsite(0x2002, 0x1000, False, func_hook_task), - sa.Callsite(0x2006, 0x53968, True, None)]), - 0x4000: sa.Function(0x4000, 'touchpad_calc', 0, []), - } - self.assertEqual(function_map, expect_funcmap) - - def testAnalyzeCallGraph(self): - funcs = { - 0x1000: sa.Function(0x1000, 'hook_task', 0, []), - 0x2000: sa.Function(0x2000, 'console_task', 8, []), - 0x3000: sa.Function(0x3000, 'task_a', 12, []), - 0x4000: sa.Function(0x4000, 'task_b', 96, []), - 0x5000: sa.Function(0x5000, 'task_c', 32, []), - 0x6000: sa.Function(0x6000, 'task_d', 100, []), - 0x7000: sa.Function(0x7000, 'task_e', 24, []), - 0x8000: sa.Function(0x8000, 'task_f', 20, []), - 0x9000: sa.Function(0x9000, 'task_g', 20, []), - 0x10000: sa.Function(0x10000, 'task_x', 16, []), - } - funcs[0x1000].callsites = [ - sa.Callsite(0x1002, 0x3000, False, funcs[0x3000]), - sa.Callsite(0x1006, 0x4000, False, funcs[0x4000])] - funcs[0x2000].callsites = [ - sa.Callsite(0x2002, 0x5000, False, funcs[0x5000]), - sa.Callsite(0x2006, 0x2000, False, funcs[0x2000]), - sa.Callsite(0x200a, 0x10000, False, funcs[0x10000])] - funcs[0x3000].callsites = [ - sa.Callsite(0x3002, 0x4000, False, funcs[0x4000]), - sa.Callsite(0x3006, 0x1000, False, funcs[0x1000])] - funcs[0x4000].callsites = [ - sa.Callsite(0x4002, 0x6000, True, funcs[0x6000]), - sa.Callsite(0x4006, 0x7000, False, funcs[0x7000]), - sa.Callsite(0x400a, 0x8000, False, funcs[0x8000])] - funcs[0x5000].callsites = [ - sa.Callsite(0x5002, 0x4000, False, funcs[0x4000])] - funcs[0x7000].callsites = [ - sa.Callsite(0x7002, 0x7000, False, funcs[0x7000])] - funcs[0x8000].callsites = [ - sa.Callsite(0x8002, 0x9000, False, funcs[0x9000])] - funcs[0x9000].callsites = [ - sa.Callsite(0x9002, 0x4000, False, funcs[0x4000])] - funcs[0x10000].callsites = [ - sa.Callsite(0x10002, 0x2000, False, funcs[0x2000])] - - cycles = self.analyzer.AnalyzeCallGraph(funcs, [ - [funcs[0x2000]] * 2, - [funcs[0x10000], funcs[0x2000]] * 3, - [funcs[0x1000], funcs[0x3000], funcs[0x1000]] - ]) - - expect_func_stack = { - 0x1000: (268, [funcs[0x1000], - funcs[0x3000], - funcs[0x4000], - funcs[0x8000], - funcs[0x9000], - funcs[0x4000], - funcs[0x7000]]), - 0x2000: (208, [funcs[0x2000], - funcs[0x10000], - funcs[0x2000], - funcs[0x10000], - funcs[0x2000], - funcs[0x5000], - funcs[0x4000], - funcs[0x7000]]), - 0x3000: (280, [funcs[0x3000], - funcs[0x1000], - funcs[0x3000], - funcs[0x4000], - funcs[0x8000], - funcs[0x9000], - funcs[0x4000], - funcs[0x7000]]), - 0x4000: (120, [funcs[0x4000], funcs[0x7000]]), - 0x5000: (152, [funcs[0x5000], funcs[0x4000], funcs[0x7000]]), - 0x6000: (100, [funcs[0x6000]]), - 0x7000: (24, [funcs[0x7000]]), - 0x8000: (160, [funcs[0x8000], - funcs[0x9000], - funcs[0x4000], - funcs[0x7000]]), - 0x9000: (140, [funcs[0x9000], funcs[0x4000], funcs[0x7000]]), - 0x10000: (200, [funcs[0x10000], - funcs[0x2000], - funcs[0x10000], - funcs[0x2000], - funcs[0x5000], - funcs[0x4000], - funcs[0x7000]]), - } - expect_cycles = [ - {funcs[0x4000], funcs[0x8000], funcs[0x9000]}, - {funcs[0x7000]}, - ] - for func in funcs.values(): - (stack_max_usage, stack_max_path) = expect_func_stack[func.address] - self.assertEqual(func.stack_max_usage, stack_max_usage) - self.assertEqual(func.stack_max_path, stack_max_path) - - self.assertEqual(len(cycles), len(expect_cycles)) - for cycle in cycles: - self.assertTrue(cycle in expect_cycles) - - @mock.patch('subprocess.check_output') - def testAddressToLine(self, checkoutput_mock): - checkoutput_mock.return_value = 'fake_func\n/test.c:1' - self.assertEqual(self.analyzer.AddressToLine(0x1234), - [('fake_func', '/test.c', 1)]) - checkoutput_mock.assert_called_once_with( - ['addr2line', '-f', '-e', './ec.RW.elf', '1234'], encoding='utf-8') - checkoutput_mock.reset_mock() - - checkoutput_mock.return_value = 'fake_func\n/a.c:1\nbake_func\n/b.c:2\n' - self.assertEqual(self.analyzer.AddressToLine(0x1234, True), - [('fake_func', '/a.c', 1), ('bake_func', '/b.c', 2)]) - checkoutput_mock.assert_called_once_with( - ['addr2line', '-f', '-e', './ec.RW.elf', '1234', '-i'], - encoding='utf-8') - checkoutput_mock.reset_mock() - - checkoutput_mock.return_value = 'fake_func\n/test.c:1 (discriminator 128)' - self.assertEqual(self.analyzer.AddressToLine(0x12345), - [('fake_func', '/test.c', 1)]) - checkoutput_mock.assert_called_once_with( - ['addr2line', '-f', '-e', './ec.RW.elf', '12345'], encoding='utf-8') - checkoutput_mock.reset_mock() - - checkoutput_mock.return_value = '??\n:?\nbake_func\n/b.c:2\n' - self.assertEqual(self.analyzer.AddressToLine(0x123456), - [None, ('bake_func', '/b.c', 2)]) - checkoutput_mock.assert_called_once_with( - ['addr2line', '-f', '-e', './ec.RW.elf', '123456'], encoding='utf-8') - checkoutput_mock.reset_mock() - - with self.assertRaisesRegexp(sa.StackAnalyzerError, - 'addr2line failed to resolve lines.'): - checkoutput_mock.side_effect = subprocess.CalledProcessError(1, '') - self.analyzer.AddressToLine(0x5678) - - with self.assertRaisesRegexp(sa.StackAnalyzerError, - 'Failed to run addr2line.'): - checkoutput_mock.side_effect = OSError() - self.analyzer.AddressToLine(0x9012) - - @mock.patch('subprocess.check_output') - @mock.patch('stack_analyzer.StackAnalyzer.AddressToLine') - def testAndesAnalyze(self, addrtoline_mock, checkoutput_mock): - disasm_text = ( - '\n' - 'build/{BOARD}/RW/ec.RW.elf: file format elf32-nds32le' - '\n' - 'Disassembly of section .text:\n' - '\n' - '00000900 <wook_task>:\n' - ' ...\n' - '00001000 <hook_task>:\n' - ' 1000: fc 00\t\tpush25 $r10, #16 ! {$r6~$r10, $fp, $gp, $lp}\n' - ' 1002: 47 70\t\tmovi55 $r0, #1\n' - ' 1006: 00 01 5c fc\tbne $r6, $r0, 2af6a\n' - '00002000 <console_task>:\n' - ' 2000: fc 00\t\tpush25 $r6, #0 ! {$r6, $fp, $gp, $lp} \n' - ' 2002: f0 0e fc c5\tjal 1000 <hook_task>\n' - ' 2006: f0 0e bd 3b\tj 53968 <get_program_memory_addr>\n' - ' 200a: 12 34 56 78\tjral5 $r0\n' - ) - - addrtoline_mock.return_value = [('??', '??', 0)] - self.analyzer.annotation = { - 'exception_frame_size': 64, - 'remove': [['fake_func']], - } - - with mock.patch('builtins.print') as print_mock: - checkoutput_mock.return_value = disasm_text - self.analyzer.Analyze() - print_mock.assert_has_calls([ - mock.call( - 'Task: HOOKS, Max size: 96 (32 + 64), Allocated size: 2048'), - mock.call('Call Trace:'), - mock.call(' hook_task (32) [??:0] 1000'), - mock.call( - 'Task: CONSOLE, Max size: 112 (48 + 64), Allocated size: 460'), - mock.call('Call Trace:'), - mock.call(' console_task (16) [??:0] 2000'), - mock.call(' -> ??[??:0] 2002'), - mock.call(' hook_task (32) [??:0] 1000'), - mock.call('Unresolved indirect callsites:'), - mock.call(' In function console_task:'), - mock.call(' -> ??[??:0] 200a'), - mock.call('Unresolved annotation signatures:'), - mock.call(' fake_func: function is not found'), - ]) - - with self.assertRaisesRegexp(sa.StackAnalyzerError, - 'Failed to run objdump.'): - checkoutput_mock.side_effect = OSError() - self.analyzer.Analyze() - - with self.assertRaisesRegexp(sa.StackAnalyzerError, - 'objdump failed to disassemble.'): - checkoutput_mock.side_effect = subprocess.CalledProcessError(1, '') - self.analyzer.Analyze() - - @mock.patch('subprocess.check_output') - @mock.patch('stack_analyzer.StackAnalyzer.AddressToLine') - def testArmAnalyze(self, addrtoline_mock, checkoutput_mock): - disasm_text = ( - '\n' - 'build/{BOARD}/RW/ec.RW.elf: file format elf32-littlearm' - '\n' - 'Disassembly of section .text:\n' - '\n' - '00000900 <wook_task>:\n' - ' ...\n' - '00001000 <hook_task>:\n' - ' 1000: b508\t\tpush {r3, lr}\n' - ' 1002: 4770\t\tbx lr\n' - ' 1006: 00015cfc\t.word 0x00015cfc\n' - '00002000 <console_task>:\n' - ' 2000: b508\t\tpush {r3, lr}\n' - ' 2002: f00e fcc5\tbl 1000 <hook_task>\n' - ' 2006: f00e bd3b\tb.w 53968 <get_program_memory_addr>\n' - ' 200a: 1234 5678\tb.w sl\n' - ) - - addrtoline_mock.return_value = [('??', '??', 0)] - self.analyzer.annotation = { - 'exception_frame_size': 64, - 'remove': [['fake_func']], - } - - with mock.patch('builtins.print') as print_mock: - checkoutput_mock.return_value = disasm_text - self.analyzer.Analyze() - print_mock.assert_has_calls([ - mock.call( - 'Task: HOOKS, Max size: 72 (8 + 64), Allocated size: 2048'), - mock.call('Call Trace:'), - mock.call(' hook_task (8) [??:0] 1000'), - mock.call( - 'Task: CONSOLE, Max size: 80 (16 + 64), Allocated size: 460'), - mock.call('Call Trace:'), - mock.call(' console_task (8) [??:0] 2000'), - mock.call(' -> ??[??:0] 2002'), - mock.call(' hook_task (8) [??:0] 1000'), - mock.call('Unresolved indirect callsites:'), - mock.call(' In function console_task:'), - mock.call(' -> ??[??:0] 200a'), - mock.call('Unresolved annotation signatures:'), - mock.call(' fake_func: function is not found'), - ]) - - with self.assertRaisesRegexp(sa.StackAnalyzerError, - 'Failed to run objdump.'): - checkoutput_mock.side_effect = OSError() - self.analyzer.Analyze() - - with self.assertRaisesRegexp(sa.StackAnalyzerError, - 'objdump failed to disassemble.'): - checkoutput_mock.side_effect = subprocess.CalledProcessError(1, '') - self.analyzer.Analyze() - - @mock.patch('subprocess.check_output') - @mock.patch('stack_analyzer.ParseArgs') - def testMain(self, parseargs_mock, checkoutput_mock): - symbol_text = ('1000 g F .text 0000015c .hidden hook_task\n' - '2000 g F .text 0000051c .hidden console_task\n') - rodata_text = ( - '\n' - 'Contents of section .rodata:\n' - ' 20000 dead1000 00100000 dead2000 00200000 He..f.He..s.\n' - ) - - args = mock.MagicMock(elf_path='./ec.RW.elf', - export_taskinfo='fake', - section='RW', - objdump='objdump', - addr2line='addr2line', - annotation='fake') - parseargs_mock.return_value = args - - with mock.patch('os.path.exists') as path_mock: - path_mock.return_value = False - with mock.patch('builtins.print') as print_mock: - with mock.patch('builtins.open', mock.mock_open()) as open_mock: - sa.main() - print_mock.assert_any_call( - 'Warning: Annotation file fake does not exist.') - - with mock.patch('os.path.exists') as path_mock: - path_mock.return_value = True - with mock.patch('builtins.print') as print_mock: - with mock.patch('builtins.open', mock.mock_open()) as open_mock: - open_mock.side_effect = IOError() - sa.main() - print_mock.assert_called_once_with( - 'Error: Failed to open annotation file fake.') - - with mock.patch('builtins.print') as print_mock: - with mock.patch('builtins.open', mock.mock_open()) as open_mock: - open_mock.return_value.read.side_effect = ['{', ''] - sa.main() - open_mock.assert_called_once_with('fake', 'r') - print_mock.assert_called_once_with( - 'Error: Failed to parse annotation file fake.') - - with mock.patch('builtins.print') as print_mock: - with mock.patch('builtins.open', - mock.mock_open(read_data='')) as open_mock: - sa.main() - print_mock.assert_called_once_with( - 'Error: Invalid annotation file fake.') - - args.annotation = None - - with mock.patch('builtins.print') as print_mock: - checkoutput_mock.side_effect = [symbol_text, rodata_text] - sa.main() - print_mock.assert_called_once_with( - 'Error: Failed to load export_taskinfo.') - - with mock.patch('builtins.print') as print_mock: - checkoutput_mock.side_effect = subprocess.CalledProcessError(1, '') - sa.main() - print_mock.assert_called_once_with( - 'Error: objdump failed to dump symbol table or rodata.') - - with mock.patch('builtins.print') as print_mock: - checkoutput_mock.side_effect = OSError() - sa.main() - print_mock.assert_called_once_with('Error: Failed to run objdump.') - - -if __name__ == '__main__': - unittest.main() + ( + add_rules, + remove_rules, + invalid_sigtxts, + ) = self.analyzer.LoadAnnotation() + self.assertEqual(add_rules, {}) + self.assertEqual( + list.sort(remove_rules), + list.sort( + [ + [("a", None, None), ("1", None, None), ("x", None, None)], + [("a", None, None), ("0", None, None), ("x", None, None)], + [("a", None, None), ("2", None, None), ("x", None, None)], + [ + ("b", os.path.abspath("x"), 3), + ("1", None, None), + ("x", None, None), + ], + [ + ("b", os.path.abspath("x"), 3), + ("0", None, None), + ("x", None, None), + ], + [ + ("b", os.path.abspath("x"), 3), + ("2", None, None), + ("x", None, None), + ], + ] + ), + ) + self.assertEqual(invalid_sigtxts, {"["}) + + self.analyzer.annotation = { + "add": { + "touchpad_calc": [dict(name="__array", stride=8, offset=4)], + } + } + ( + add_rules, + remove_rules, + invalid_sigtxts, + ) = self.analyzer.LoadAnnotation() + self.assertEqual( + add_rules, + { + ("touchpad_calc", None, None): set( + [("console_task", None, None), ("hook_task", None, None)] + ) + }, + ) + + funcs = { + 0x1000: sa.Function(0x1000, "hook_task", 0, []), + 0x2000: sa.Function(0x2000, "console_task", 0, []), + 0x4000: sa.Function(0x4000, "touchpad_calc", 0, []), + 0x5000: sa.Function(0x5000, "touchpad_calc.constprop.42", 0, []), + 0x13000: sa.Function(0x13000, "inlined_mul", 0, []), + 0x13100: sa.Function(0x13100, "inlined_mul", 0, []), + } + funcs[0x1000].callsites = [sa.Callsite(0x1002, None, False, None)] + # Set address_to_line_cache to fake the results of addr2line. + self.analyzer.address_to_line_cache = { + (0x1000, False): [("hook_task", os.path.abspath("a.c"), 10)], + (0x1002, False): [("toot_calc", os.path.abspath("t.c"), 1234)], + (0x2000, False): [("console_task", os.path.abspath("b.c"), 20)], + (0x4000, False): [("toudhpad_calc", os.path.abspath("a.c"), 20)], + (0x5000, False): [ + ("touchpad_calc.constprop.42", os.path.abspath("b.c"), 40) + ], + (0x12000, False): [("trackpad_range", os.path.abspath("t.c"), 10)], + (0x13000, False): [("inlined_mul", os.path.abspath("x.c"), 12)], + (0x13100, False): [("inlined_mul", os.path.abspath("x.c"), 12)], + } + self.analyzer.annotation = { + "add": { + "hook_task.lto.573": ["touchpad_calc.lto.2501[a.c]"], + "console_task": ["touchpad_calc[b.c]", "inlined_mul_alias"], + "hook_task[q.c]": ["hook_task"], + "inlined_mul[x.c]": ["inlined_mul"], + "toot_calc[t.c:1234]": ["hook_task"], + }, + "remove": [ + ["touchpad?calc["], + "touchpad_calc", + ["touchpad_calc[a.c]"], + ["task_unk[a.c]"], + ["touchpad_calc[x/a.c]"], + ["trackpad_range"], + ["inlined_mul"], + ["inlined_mul", "console_task", "touchpad_calc[a.c]"], + ["inlined_mul", "inlined_mul_alias", "console_task"], + ["inlined_mul", "inlined_mul_alias", "console_task"], + ], + } + ( + add_rules, + remove_rules, + invalid_sigtxts, + ) = self.analyzer.LoadAnnotation() + self.assertEqual(invalid_sigtxts, {"touchpad?calc["}) + + signature_set = set() + for src_sig, dst_sigs in add_rules.items(): + signature_set.add(src_sig) + signature_set.update(dst_sigs) + + for remove_sigs in remove_rules: + signature_set.update(remove_sigs) + + (signature_map, failed_sigs) = self.analyzer.MapAnnotation( + funcs, signature_set + ) + result = self.analyzer.ResolveAnnotation(funcs) + (add_set, remove_list, eliminated_addrs, failed_sigs) = result + + expect_signature_map = { + ("hook_task", None, None): {funcs[0x1000]}, + ("touchpad_calc", os.path.abspath("a.c"), None): {funcs[0x4000]}, + ("touchpad_calc", os.path.abspath("b.c"), None): {funcs[0x5000]}, + ("console_task", None, None): {funcs[0x2000]}, + ("inlined_mul_alias", None, None): {funcs[0x13100]}, + ("inlined_mul", os.path.abspath("x.c"), None): { + funcs[0x13000], + funcs[0x13100], + }, + ("inlined_mul", None, None): {funcs[0x13000], funcs[0x13100]}, + } + self.assertEqual(len(signature_map), len(expect_signature_map)) + for sig, funclist in signature_map.items(): + self.assertEqual(set(funclist), expect_signature_map[sig]) + + self.assertEqual( + add_set, + { + (funcs[0x1000], funcs[0x4000]), + (funcs[0x1000], funcs[0x1000]), + (funcs[0x2000], funcs[0x5000]), + (funcs[0x2000], funcs[0x13100]), + (funcs[0x13000], funcs[0x13000]), + (funcs[0x13000], funcs[0x13100]), + (funcs[0x13100], funcs[0x13000]), + (funcs[0x13100], funcs[0x13100]), + }, + ) + expect_remove_list = [ + [funcs[0x4000]], + [funcs[0x13000]], + [funcs[0x13100]], + [funcs[0x13000], funcs[0x2000], funcs[0x4000]], + [funcs[0x13100], funcs[0x2000], funcs[0x4000]], + [funcs[0x13000], funcs[0x13100], funcs[0x2000]], + [funcs[0x13100], funcs[0x13100], funcs[0x2000]], + ] + self.assertEqual(len(remove_list), len(expect_remove_list)) + for remove_path in remove_list: + self.assertTrue(remove_path in expect_remove_list) + + self.assertEqual(eliminated_addrs, {0x1002}) + self.assertEqual( + failed_sigs, + { + ("touchpad?calc[", sa.StackAnalyzer.ANNOTATION_ERROR_INVALID), + ("touchpad_calc", sa.StackAnalyzer.ANNOTATION_ERROR_AMBIGUOUS), + ("hook_task[q.c]", sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND), + ("task_unk[a.c]", sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND), + ( + "touchpad_calc[x/a.c]", + sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND, + ), + ("trackpad_range", sa.StackAnalyzer.ANNOTATION_ERROR_NOTFOUND), + }, + ) + + def testPreprocessAnnotation(self): + funcs = { + 0x1000: sa.Function(0x1000, "hook_task", 0, []), + 0x2000: sa.Function(0x2000, "console_task", 0, []), + 0x4000: sa.Function(0x4000, "touchpad_calc", 0, []), + } + funcs[0x1000].callsites = [ + sa.Callsite(0x1002, 0x1000, False, funcs[0x1000]) + ] + funcs[0x2000].callsites = [ + sa.Callsite(0x2002, 0x1000, False, funcs[0x1000]), + sa.Callsite(0x2006, None, True, None), + ] + add_set = { + (funcs[0x2000], funcs[0x2000]), + (funcs[0x2000], funcs[0x4000]), + (funcs[0x4000], funcs[0x1000]), + (funcs[0x4000], funcs[0x2000]), + } + remove_list = [ + [funcs[0x1000]], + [funcs[0x2000], funcs[0x2000]], + [funcs[0x4000], funcs[0x1000]], + [funcs[0x2000], funcs[0x4000], funcs[0x2000]], + [funcs[0x4000], funcs[0x1000], funcs[0x4000]], + ] + eliminated_addrs = {0x2006} + + remaining_remove_list = self.analyzer.PreprocessAnnotation( + funcs, add_set, remove_list, eliminated_addrs + ) + + expect_funcs = { + 0x1000: sa.Function(0x1000, "hook_task", 0, []), + 0x2000: sa.Function(0x2000, "console_task", 0, []), + 0x4000: sa.Function(0x4000, "touchpad_calc", 0, []), + } + expect_funcs[0x2000].callsites = [ + sa.Callsite(None, 0x4000, False, expect_funcs[0x4000]) + ] + expect_funcs[0x4000].callsites = [ + sa.Callsite(None, 0x2000, False, expect_funcs[0x2000]) + ] + self.assertEqual(funcs, expect_funcs) + self.assertEqual( + remaining_remove_list, + [ + [funcs[0x2000], funcs[0x4000], funcs[0x2000]], + ], + ) + + def testAndesAnalyzeDisassembly(self): + disasm_text = ( + "\n" + "build/{BOARD}/RW/ec.RW.elf: file format elf32-nds32le" + "\n" + "Disassembly of section .text:\n" + "\n" + "00000900 <wook_task>:\n" + " ...\n" + "00001000 <hook_task>:\n" + " 1000: fc 42\tpush25 $r10, #16 ! {$r6~$r10, $fp, $gp, $lp}\n" + " 1004: 47 70\t\tmovi55 $r0, #1\n" + " 1006: b1 13\tbnezs8 100929de <flash_command_write>\n" + " 1008: 00 01 5c fc\tbne $r6, $r0, 2af6a\n" + "00002000 <console_task>:\n" + " 2000: fc 00\t\tpush25 $r6, #0 ! {$r6, $fp, $gp, $lp} \n" + " 2002: f0 0e fc c5\tjal 1000 <hook_task>\n" + " 2006: f0 0e bd 3b\tj 53968 <get_program_memory_addr>\n" + " 200a: de ad be ef\tswi.gp $r0, [ + #-11036]\n" + "00004000 <touchpad_calc>:\n" + " 4000: 47 70\t\tmovi55 $r0, #1\n" + "00010000 <look_task>:" + ) + function_map = self.analyzer.AnalyzeDisassembly(disasm_text) + func_hook_task = sa.Function( + 0x1000, + "hook_task", + 48, + [sa.Callsite(0x1006, 0x100929DE, True, None)], + ) + expect_funcmap = { + 0x1000: func_hook_task, + 0x2000: sa.Function( + 0x2000, + "console_task", + 16, + [ + sa.Callsite(0x2002, 0x1000, False, func_hook_task), + sa.Callsite(0x2006, 0x53968, True, None), + ], + ), + 0x4000: sa.Function(0x4000, "touchpad_calc", 0, []), + } + self.assertEqual(function_map, expect_funcmap) + + def testArmAnalyzeDisassembly(self): + disasm_text = ( + "\n" + "build/{BOARD}/RW/ec.RW.elf: file format elf32-littlearm" + "\n" + "Disassembly of section .text:\n" + "\n" + "00000900 <wook_task>:\n" + " ...\n" + "00001000 <hook_task>:\n" + " 1000: dead beef\tfake\n" + " 1004: 4770\t\tbx lr\n" + " 1006: b113\tcbz r3, 100929de <flash_command_write>\n" + " 1008: 00015cfc\t.word 0x00015cfc\n" + "00002000 <console_task>:\n" + " 2000: b508\t\tpush {r3, lr} ; malformed comments,; r0, r1 \n" + " 2002: f00e fcc5\tbl 1000 <hook_task>\n" + " 2006: f00e bd3b\tb.w 53968 <get_program_memory_addr>\n" + " 200a: dead beef\tfake\n" + "00004000 <touchpad_calc>:\n" + " 4000: 4770\t\tbx lr\n" + "00010000 <look_task>:" + ) + function_map = self.analyzer.AnalyzeDisassembly(disasm_text) + func_hook_task = sa.Function( + 0x1000, + "hook_task", + 0, + [sa.Callsite(0x1006, 0x100929DE, True, None)], + ) + expect_funcmap = { + 0x1000: func_hook_task, + 0x2000: sa.Function( + 0x2000, + "console_task", + 8, + [ + sa.Callsite(0x2002, 0x1000, False, func_hook_task), + sa.Callsite(0x2006, 0x53968, True, None), + ], + ), + 0x4000: sa.Function(0x4000, "touchpad_calc", 0, []), + } + self.assertEqual(function_map, expect_funcmap) + + def testAnalyzeCallGraph(self): + funcs = { + 0x1000: sa.Function(0x1000, "hook_task", 0, []), + 0x2000: sa.Function(0x2000, "console_task", 8, []), + 0x3000: sa.Function(0x3000, "task_a", 12, []), + 0x4000: sa.Function(0x4000, "task_b", 96, []), + 0x5000: sa.Function(0x5000, "task_c", 32, []), + 0x6000: sa.Function(0x6000, "task_d", 100, []), + 0x7000: sa.Function(0x7000, "task_e", 24, []), + 0x8000: sa.Function(0x8000, "task_f", 20, []), + 0x9000: sa.Function(0x9000, "task_g", 20, []), + 0x10000: sa.Function(0x10000, "task_x", 16, []), + } + funcs[0x1000].callsites = [ + sa.Callsite(0x1002, 0x3000, False, funcs[0x3000]), + sa.Callsite(0x1006, 0x4000, False, funcs[0x4000]), + ] + funcs[0x2000].callsites = [ + sa.Callsite(0x2002, 0x5000, False, funcs[0x5000]), + sa.Callsite(0x2006, 0x2000, False, funcs[0x2000]), + sa.Callsite(0x200A, 0x10000, False, funcs[0x10000]), + ] + funcs[0x3000].callsites = [ + sa.Callsite(0x3002, 0x4000, False, funcs[0x4000]), + sa.Callsite(0x3006, 0x1000, False, funcs[0x1000]), + ] + funcs[0x4000].callsites = [ + sa.Callsite(0x4002, 0x6000, True, funcs[0x6000]), + sa.Callsite(0x4006, 0x7000, False, funcs[0x7000]), + sa.Callsite(0x400A, 0x8000, False, funcs[0x8000]), + ] + funcs[0x5000].callsites = [ + sa.Callsite(0x5002, 0x4000, False, funcs[0x4000]) + ] + funcs[0x7000].callsites = [ + sa.Callsite(0x7002, 0x7000, False, funcs[0x7000]) + ] + funcs[0x8000].callsites = [ + sa.Callsite(0x8002, 0x9000, False, funcs[0x9000]) + ] + funcs[0x9000].callsites = [ + sa.Callsite(0x9002, 0x4000, False, funcs[0x4000]) + ] + funcs[0x10000].callsites = [ + sa.Callsite(0x10002, 0x2000, False, funcs[0x2000]) + ] + + cycles = self.analyzer.AnalyzeCallGraph( + funcs, + [ + [funcs[0x2000]] * 2, + [funcs[0x10000], funcs[0x2000]] * 3, + [funcs[0x1000], funcs[0x3000], funcs[0x1000]], + ], + ) + + expect_func_stack = { + 0x1000: ( + 268, + [ + funcs[0x1000], + funcs[0x3000], + funcs[0x4000], + funcs[0x8000], + funcs[0x9000], + funcs[0x4000], + funcs[0x7000], + ], + ), + 0x2000: ( + 208, + [ + funcs[0x2000], + funcs[0x10000], + funcs[0x2000], + funcs[0x10000], + funcs[0x2000], + funcs[0x5000], + funcs[0x4000], + funcs[0x7000], + ], + ), + 0x3000: ( + 280, + [ + funcs[0x3000], + funcs[0x1000], + funcs[0x3000], + funcs[0x4000], + funcs[0x8000], + funcs[0x9000], + funcs[0x4000], + funcs[0x7000], + ], + ), + 0x4000: (120, [funcs[0x4000], funcs[0x7000]]), + 0x5000: (152, [funcs[0x5000], funcs[0x4000], funcs[0x7000]]), + 0x6000: (100, [funcs[0x6000]]), + 0x7000: (24, [funcs[0x7000]]), + 0x8000: ( + 160, + [funcs[0x8000], funcs[0x9000], funcs[0x4000], funcs[0x7000]], + ), + 0x9000: (140, [funcs[0x9000], funcs[0x4000], funcs[0x7000]]), + 0x10000: ( + 200, + [ + funcs[0x10000], + funcs[0x2000], + funcs[0x10000], + funcs[0x2000], + funcs[0x5000], + funcs[0x4000], + funcs[0x7000], + ], + ), + } + expect_cycles = [ + {funcs[0x4000], funcs[0x8000], funcs[0x9000]}, + {funcs[0x7000]}, + ] + for func in funcs.values(): + (stack_max_usage, stack_max_path) = expect_func_stack[func.address] + self.assertEqual(func.stack_max_usage, stack_max_usage) + self.assertEqual(func.stack_max_path, stack_max_path) + + self.assertEqual(len(cycles), len(expect_cycles)) + for cycle in cycles: + self.assertTrue(cycle in expect_cycles) + + @mock.patch("subprocess.check_output") + def testAddressToLine(self, checkoutput_mock): + checkoutput_mock.return_value = "fake_func\n/test.c:1" + self.assertEqual( + self.analyzer.AddressToLine(0x1234), [("fake_func", "/test.c", 1)] + ) + checkoutput_mock.assert_called_once_with( + ["addr2line", "-f", "-e", "./ec.RW.elf", "1234"], encoding="utf-8" + ) + checkoutput_mock.reset_mock() + + checkoutput_mock.return_value = "fake_func\n/a.c:1\nbake_func\n/b.c:2\n" + self.assertEqual( + self.analyzer.AddressToLine(0x1234, True), + [("fake_func", "/a.c", 1), ("bake_func", "/b.c", 2)], + ) + checkoutput_mock.assert_called_once_with( + ["addr2line", "-f", "-e", "./ec.RW.elf", "1234", "-i"], + encoding="utf-8", + ) + checkoutput_mock.reset_mock() + + checkoutput_mock.return_value = ( + "fake_func\n/test.c:1 (discriminator 128)" + ) + self.assertEqual( + self.analyzer.AddressToLine(0x12345), [("fake_func", "/test.c", 1)] + ) + checkoutput_mock.assert_called_once_with( + ["addr2line", "-f", "-e", "./ec.RW.elf", "12345"], encoding="utf-8" + ) + checkoutput_mock.reset_mock() + + checkoutput_mock.return_value = "??\n:?\nbake_func\n/b.c:2\n" + self.assertEqual( + self.analyzer.AddressToLine(0x123456), + [None, ("bake_func", "/b.c", 2)], + ) + checkoutput_mock.assert_called_once_with( + ["addr2line", "-f", "-e", "./ec.RW.elf", "123456"], encoding="utf-8" + ) + checkoutput_mock.reset_mock() + + with self.assertRaisesRegexp( + sa.StackAnalyzerError, "addr2line failed to resolve lines." + ): + checkoutput_mock.side_effect = subprocess.CalledProcessError(1, "") + self.analyzer.AddressToLine(0x5678) + + with self.assertRaisesRegexp( + sa.StackAnalyzerError, "Failed to run addr2line." + ): + checkoutput_mock.side_effect = OSError() + self.analyzer.AddressToLine(0x9012) + + @mock.patch("subprocess.check_output") + @mock.patch("stack_analyzer.StackAnalyzer.AddressToLine") + def testAndesAnalyze(self, addrtoline_mock, checkoutput_mock): + disasm_text = ( + "\n" + "build/{BOARD}/RW/ec.RW.elf: file format elf32-nds32le" + "\n" + "Disassembly of section .text:\n" + "\n" + "00000900 <wook_task>:\n" + " ...\n" + "00001000 <hook_task>:\n" + " 1000: fc 00\t\tpush25 $r10, #16 ! {$r6~$r10, $fp, $gp, $lp}\n" + " 1002: 47 70\t\tmovi55 $r0, #1\n" + " 1006: 00 01 5c fc\tbne $r6, $r0, 2af6a\n" + "00002000 <console_task>:\n" + " 2000: fc 00\t\tpush25 $r6, #0 ! {$r6, $fp, $gp, $lp} \n" + " 2002: f0 0e fc c5\tjal 1000 <hook_task>\n" + " 2006: f0 0e bd 3b\tj 53968 <get_program_memory_addr>\n" + " 200a: 12 34 56 78\tjral5 $r0\n" + ) + + addrtoline_mock.return_value = [("??", "??", 0)] + self.analyzer.annotation = { + "exception_frame_size": 64, + "remove": [["fake_func"]], + } + + with mock.patch("builtins.print") as print_mock: + checkoutput_mock.return_value = disasm_text + self.analyzer.Analyze() + print_mock.assert_has_calls( + [ + mock.call( + "Task: HOOKS, Max size: 96 (32 + 64), Allocated size: 2048" + ), + mock.call("Call Trace:"), + mock.call(" hook_task (32) [??:0] 1000"), + mock.call( + "Task: CONSOLE, Max size: 112 (48 + 64), Allocated size: 460" + ), + mock.call("Call Trace:"), + mock.call(" console_task (16) [??:0] 2000"), + mock.call(" -> ??[??:0] 2002"), + mock.call(" hook_task (32) [??:0] 1000"), + mock.call("Unresolved indirect callsites:"), + mock.call(" In function console_task:"), + mock.call(" -> ??[??:0] 200a"), + mock.call("Unresolved annotation signatures:"), + mock.call(" fake_func: function is not found"), + ] + ) + + with self.assertRaisesRegexp( + sa.StackAnalyzerError, "Failed to run objdump." + ): + checkoutput_mock.side_effect = OSError() + self.analyzer.Analyze() + + with self.assertRaisesRegexp( + sa.StackAnalyzerError, "objdump failed to disassemble." + ): + checkoutput_mock.side_effect = subprocess.CalledProcessError(1, "") + self.analyzer.Analyze() + + @mock.patch("subprocess.check_output") + @mock.patch("stack_analyzer.StackAnalyzer.AddressToLine") + def testArmAnalyze(self, addrtoline_mock, checkoutput_mock): + disasm_text = ( + "\n" + "build/{BOARD}/RW/ec.RW.elf: file format elf32-littlearm" + "\n" + "Disassembly of section .text:\n" + "\n" + "00000900 <wook_task>:\n" + " ...\n" + "00001000 <hook_task>:\n" + " 1000: b508\t\tpush {r3, lr}\n" + " 1002: 4770\t\tbx lr\n" + " 1006: 00015cfc\t.word 0x00015cfc\n" + "00002000 <console_task>:\n" + " 2000: b508\t\tpush {r3, lr}\n" + " 2002: f00e fcc5\tbl 1000 <hook_task>\n" + " 2006: f00e bd3b\tb.w 53968 <get_program_memory_addr>\n" + " 200a: 1234 5678\tb.w sl\n" + ) + + addrtoline_mock.return_value = [("??", "??", 0)] + self.analyzer.annotation = { + "exception_frame_size": 64, + "remove": [["fake_func"]], + } + + with mock.patch("builtins.print") as print_mock: + checkoutput_mock.return_value = disasm_text + self.analyzer.Analyze() + print_mock.assert_has_calls( + [ + mock.call( + "Task: HOOKS, Max size: 72 (8 + 64), Allocated size: 2048" + ), + mock.call("Call Trace:"), + mock.call(" hook_task (8) [??:0] 1000"), + mock.call( + "Task: CONSOLE, Max size: 80 (16 + 64), Allocated size: 460" + ), + mock.call("Call Trace:"), + mock.call(" console_task (8) [??:0] 2000"), + mock.call(" -> ??[??:0] 2002"), + mock.call(" hook_task (8) [??:0] 1000"), + mock.call("Unresolved indirect callsites:"), + mock.call(" In function console_task:"), + mock.call(" -> ??[??:0] 200a"), + mock.call("Unresolved annotation signatures:"), + mock.call(" fake_func: function is not found"), + ] + ) + + with self.assertRaisesRegexp( + sa.StackAnalyzerError, "Failed to run objdump." + ): + checkoutput_mock.side_effect = OSError() + self.analyzer.Analyze() + + with self.assertRaisesRegexp( + sa.StackAnalyzerError, "objdump failed to disassemble." + ): + checkoutput_mock.side_effect = subprocess.CalledProcessError(1, "") + self.analyzer.Analyze() + + @mock.patch("subprocess.check_output") + @mock.patch("stack_analyzer.ParseArgs") + def testMain(self, parseargs_mock, checkoutput_mock): + symbol_text = ( + "1000 g F .text 0000015c .hidden hook_task\n" + "2000 g F .text 0000051c .hidden console_task\n" + ) + rodata_text = ( + "\n" + "Contents of section .rodata:\n" + " 20000 dead1000 00100000 dead2000 00200000 He..f.He..s.\n" + ) + + args = mock.MagicMock( + elf_path="./ec.RW.elf", + export_taskinfo="fake", + section="RW", + objdump="objdump", + addr2line="addr2line", + annotation="fake", + ) + parseargs_mock.return_value = args + + with mock.patch("os.path.exists") as path_mock: + path_mock.return_value = False + with mock.patch("builtins.print") as print_mock: + with mock.patch("builtins.open", mock.mock_open()) as open_mock: + sa.main() + print_mock.assert_any_call( + "Warning: Annotation file fake does not exist." + ) + + with mock.patch("os.path.exists") as path_mock: + path_mock.return_value = True + with mock.patch("builtins.print") as print_mock: + with mock.patch("builtins.open", mock.mock_open()) as open_mock: + open_mock.side_effect = IOError() + sa.main() + print_mock.assert_called_once_with( + "Error: Failed to open annotation file fake." + ) + + with mock.patch("builtins.print") as print_mock: + with mock.patch("builtins.open", mock.mock_open()) as open_mock: + open_mock.return_value.read.side_effect = ["{", ""] + sa.main() + open_mock.assert_called_once_with("fake", "r") + print_mock.assert_called_once_with( + "Error: Failed to parse annotation file fake." + ) + + with mock.patch("builtins.print") as print_mock: + with mock.patch( + "builtins.open", mock.mock_open(read_data="") + ) as open_mock: + sa.main() + print_mock.assert_called_once_with( + "Error: Invalid annotation file fake." + ) + + args.annotation = None + + with mock.patch("builtins.print") as print_mock: + checkoutput_mock.side_effect = [symbol_text, rodata_text] + sa.main() + print_mock.assert_called_once_with( + "Error: Failed to load export_taskinfo." + ) + + with mock.patch("builtins.print") as print_mock: + checkoutput_mock.side_effect = subprocess.CalledProcessError(1, "") + sa.main() + print_mock.assert_called_once_with( + "Error: objdump failed to dump symbol table or rodata." + ) + + with mock.patch("builtins.print") as print_mock: + checkoutput_mock.side_effect = OSError() + sa.main() + print_mock.assert_called_once_with("Error: Failed to run objdump.") + + +if __name__ == "__main__": + unittest.main() |