| """ |
| Test that we can get the vm range of the shared cache. |
| """ |
| |
| import lldb |
| import re |
| import json |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class SharedCacheVMRangeTestCase(TestBase): |
| NO_DEBUG_INFO_TESTCASE = True |
| |
| @skipIfRemote |
| @skipUnlessDarwin |
| @skipIfOutOfTreeDebugserver # debugserver returns shared_cache_size |
| def test_shared_cache_vm_range(self): |
| """Test that the shared cache VM range contains a known libc function""" |
| self.build() |
| target, process, thread, bkpt = lldbutil.run_to_source_breakpoint( |
| self, "// break here", lldb.SBFileSpec("main.c") |
| ) |
| |
| res = lldb.SBCommandReturnObject() |
| ci = self.dbg.GetCommandInterpreter() |
| self.assertTrue(ci, VALID_COMMAND_INTERPRETER) |
| |
| ci.HandleCommand("process plugin packet send jGetSharedCacheInfo:{}", res) |
| |
| # packet: jGetSharedCacheInfo:{} |
| # response: |
| # { |
| # "shared_cache_base_address": 6572900352, |
| # "shared_cache_uuid": "674DB25A-34B2-3C56-8BD4-7D78005B2F2E", |
| # "no_shared_cache": false, |
| # "shared_cache_private_cache": false, |
| # "shared_cache_path": "/System/Volumes/Preboot/Cryptexes/OS/System/Library/dyld/dyld_shared_cache_arm64e", |
| # "shared_cache_size": 5820792832 |
| # } |
| |
| self.assertTrue("response: " in res.GetOutput()) |
| response = re.search("response: (.+)", res.GetOutput()).group(1) |
| json_response = json.loads(response) |
| self.assertTrue("shared_cache_base_address" in json_response) |
| self.assertTrue("shared_cache_size" in json_response) |
| start = json_response["shared_cache_base_address"] |
| end = start + json_response["shared_cache_size"] |
| |
| symctx_list = target.FindSymbols("printf", lldb.eSymbolTypeCode) |
| self.assertGreater(symctx_list.GetSize(), 0) |
| |
| symctx = symctx_list.GetContextAtIndex(0) |
| sym = symctx.GetSymbol() |
| self.assertTrue(sym.IsValid()) |
| addr = sym.GetStartAddress() |
| printf_load_addr = addr.GetLoadAddress(target) |
| |
| self.assertGreater(printf_load_addr, start) |
| self.assertLess(printf_load_addr, end) |
