1 """ 2 Test the 'memory read' command. 3 """ 4 5 import os, time 6 import re 7 import unittest2 8 import lldb 9 from lldbtest import * 10 import lldbutil 11 12 class MemoryReadTestCase(TestBase): 13 14 mydir = os.path.join("functionalities", "memory", "read") 15 16 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 17 @dsym_test 18 def test_memory_read_with_dsym(self): 19 """Test the 'memory read' command with plain and vector formats.""" 20 self.buildDsym() 21 self.memory_read_command() 22 23 @dwarf_test 24 def test_memory_read_with_dwarf(self): 25 """Test the 'memory read' command with plain and vector formats.""" 26 self.buildDwarf() 27 self.memory_read_command() 28 29 def setUp(self): 30 # Call super's setUp(). 31 TestBase.setUp(self) 32 # Find the line number to break inside main(). 33 self.line = line_number('main.cpp', '// Set break point at this line.') 34 35 def memory_read_command(self): 36 """Test the 'memory read' command with plain and vector formats.""" 37 exe = os.path.join(os.getcwd(), "a.out") 38 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) 39 40 # Break in main() aftre the variables are assigned values. 41 lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True) 42 43 self.runCmd("run", RUN_SUCCEEDED) 44 45 # The stop reason of the thread should be breakpoint. 46 self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, 47 substrs = ['stopped', 'stop reason = breakpoint']) 48 49 # The breakpoint should have a hit count of 1. 50 self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE, 51 substrs = [' resolved, hit count = 1']) 52 53 # Test the memory read commands. 54 55 # (lldb) memory read -f d -c 1 `&argc` 56 # 0x7fff5fbff9a0: 1 57 self.runCmd("memory read -f d -c 1 `&argc`") 58 59 # Find the starting address for variable 'argc' to verify later that the 60 # '--format uint32_t[] --size 4 --count 4' option increments the address 61 # correctly. 62 line = self.res.GetOutput().splitlines()[0] 63 items = line.split(':') 64 address = int(items[0], 0) 65 argc = int(items[1], 0) 66 self.assertTrue(address > 0 and argc == 1) 67 68 # (lldb) memory read --format uint32_t[] --size 4 --count 4 `&argc` 69 # 0x7fff5fbff9a0: {0x00000001} 70 # 0x7fff5fbff9a4: {0x00000000} 71 # 0x7fff5fbff9a8: {0x0ec0bf27} 72 # 0x7fff5fbff9ac: {0x215db505} 73 self.runCmd("memory read --format uint32_t[] --size 4 --count 4 `&argc`") 74 lines = self.res.GetOutput().splitlines() 75 for i in range(4): 76 if i == 0: 77 # Verify that the printout for argc is correct. 78 self.assertTrue(argc == int(lines[i].split(':')[1].strip(' {}'), 0)) 79 addr = int(lines[i].split(':')[0], 0) 80 # Verify that the printout for addr is incremented correctly. 81 self.assertTrue(addr == (address + i*4)) 82 83 # (lldb) memory read --format char[] --size 7 --count 1 `&my_string` 84 # 0x7fff5fbff990: {abcdefg} 85 self.expect("memory read --format char[] --size 7 --count 1 `&my_string`", 86 substrs = ['abcdefg']) 87 88 # (lldb) memory read --format 'hex float' --size 16 `&argc` 89 # 0x7fff5fbff5b0: error: unsupported byte size (16) for hex float format 90 self.expect("memory read --format 'hex float' --size 16 `&argc`", 91 substrs = ['unsupported byte size (16) for hex float format']) 92 93 self.expect("memory read --format 'float' --count 1 --size 8 `&my_double`", 94 substrs = ['1234.']) 95 96 # (lldb) memory read --format 'float' --count 1 --size 20 `&my_double` 97 # 0x7fff5fbff598: error: unsupported byte size (20) for float format 98 self.expect("memory read --format 'float' --count 1 --size 20 `&my_double`", 99 substrs = ['unsupported byte size (20) for float format']) 100 101 102 if __name__ == '__main__': 103 import atexit 104 lldb.SBDebugger.Initialize() 105 atexit.register(lambda: lldb.SBDebugger.Terminate()) 106 unittest2.main() 107
