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