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"""
Test that we read the exported symbols from the dyld trie
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class DyldTrieSymbolsTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
@skipIfRemote
@skipUnlessDarwin
def test_dyld_trie_symbols(self):
"""Test that we make create symbol table entries from the dyld trie data structure."""
self.build()
unstripped_exe = self.getBuildArtifact("a.out")
stripped_exe = self.getBuildArtifact("a.out-stripped")
unstripped_target = self.dbg.CreateTarget(unstripped_exe)
self.assertTrue(unstripped_target.IsValid(), "Got a vaid stripped target.")
# Verify that the expected symbols are present in an unstripped
# binary, and that we didn't duplicate the entries in the symbol
# table.
unstripped_bazval_symbols = unstripped_target.FindSymbols("bazval")
self.assertEqual(unstripped_bazval_symbols.GetSize(), 1)
unstripped_patval_symbols = unstripped_target.FindSymbols("patval")
self.assertEqual(unstripped_patval_symbols.GetSize(), 1)
unstripped_Z3foo_symbols = unstripped_target.FindSymbols("_Z3foov")
self.assertEqual(unstripped_Z3foo_symbols.GetSize(), 1)
unstripped_foo_symbols = unstripped_target.FindSymbols("foo")
self.assertEqual(unstripped_foo_symbols.GetSize(), 1)
# make sure we can look up the mangled name, demangled base name,
# demangled name with argument.
unstripped_Z3pat_symbols = unstripped_target.FindSymbols("_Z3pati")
self.assertEqual(unstripped_Z3pat_symbols.GetSize(), 1)
unstripped_pat_symbols = unstripped_target.FindSymbols("pat")
self.assertEqual(unstripped_pat_symbols.GetSize(), 1)
unstripped_bar_symbols = unstripped_target.FindSymbols("bar")
self.assertEqual(unstripped_bar_symbols.GetSize(), 1)
# Verify that we can retrieve all the symbols with external
# linkage after the binary has been stripped; they should not
# exist in the nlist records at this point and can only be
# retrieved from the dyld trie structure.
stripped_target = self.dbg.CreateTarget(stripped_exe)
self.assertTrue(stripped_target.IsValid(), "Got a vaid stripped target.")
# Check that we're able to still retrieve all the symbols after
# the binary has been stripped. Check that one we know will be
# removed is absent.
stripped_bazval_symbols = stripped_target.FindSymbols("bazval")
self.assertEqual(stripped_bazval_symbols.GetSize(), 1)
stripped_patval_symbols = stripped_target.FindSymbols("patval")
self.assertEqual(stripped_patval_symbols.GetSize(), 1)
stripped_Z3foo_symbols = stripped_target.FindSymbols("_Z3foov")
self.assertEqual(stripped_Z3foo_symbols.GetSize(), 1)
stripped_foo_symbols = stripped_target.FindSymbols("foo")
self.assertEqual(stripped_foo_symbols.GetSize(), 1)
# make sure we can look up the mangled name, demangled base name,
# demangled name with argument.
stripped_Z3pat_symbols = stripped_target.FindSymbols("_Z3pati")
self.assertEqual(stripped_Z3pat_symbols.GetSize(), 1)
stripped_pat_symbols = stripped_target.FindSymbols("pat")
self.assertEqual(stripped_pat_symbols.GetSize(), 1)
# bar should have been strippped. We should not find it, or the
# stripping went wrong.
stripped_bar_symbols = stripped_target.FindSymbols("bar")
self.assertEqual(stripped_bar_symbols.GetSize(), 0)
# confirm that we classified objc runtime symbols correctly and
# stripped off the objc prefix from the symbol names.
syms_ctx = stripped_target.FindSymbols("SourceBase")
self.assertEqual(syms_ctx.GetSize(), 2)
sym1 = syms_ctx.GetContextAtIndex(0).GetSymbol()
sym2 = syms_ctx.GetContextAtIndex(1).GetSymbol()
# one of these should be a lldb.eSymbolTypeObjCClass, the other
# should be lldb.eSymbolTypeObjCMetaClass.
if sym1.GetType() == lldb.eSymbolTypeObjCMetaClass:
self.assertEqual(sym2.GetType(), lldb.eSymbolTypeObjCClass)
else:
if sym1.GetType() == lldb.eSymbolTypeObjCClass:
self.assertEqual(sym2.GetType(), lldb.eSymbolTypeObjCMetaClass)
else:
self.assertTrue(sym1.GetType() == lldb.eSymbolTypeObjCMetaClass or sym1.GetType() == lldb.eSymbolTypeObjCClass)
syms_ctx = stripped_target.FindSymbols("SourceDerived._derivedValue")
self.assertEqual(syms_ctx.GetSize(), 1)
sym = syms_ctx.GetContextAtIndex(0).GetSymbol()
self.assertEqual(sym.GetType(), lldb.eSymbolTypeObjCIVar)
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