fc5495c351
LLDB is using LLVM's target-specific disassembler which is only available when the respective LLVM target has been enabled in the build config. This patch just skips the test if there is no arm64 target (and its disassembler) available in the current build config. Reviewed By: jasonmolenda Differential Revision: https://reviews.llvm.org/D108145
71 lines
2.7 KiB
Python
71 lines
2.7 KiB
Python
"""
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Test that the arm64 ADRP + ADD pc-relative addressing pair is symbolicated.
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"""
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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 TestAArch64AdrpAdd(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@no_debug_info_test
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@skipIfLLVMTargetMissing("AArch64")
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def test_arm64(self):
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src_dir = self.getSourceDir()
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yaml_path = os.path.join(src_dir, "a.out-arm64.yaml")
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obj_path = self.getBuildArtifact("a.out-arm64")
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self.yaml2obj(yaml_path, obj_path)
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target = self.dbg.CreateTarget(obj_path)
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self.assertTrue(target, VALID_TARGET)
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mains = target.FindFunctions("main")
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for f in mains.symbols:
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binaryname = f.GetStartAddress().GetModule().GetFileSpec().GetFilename()
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if binaryname == "a.out-arm64":
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self.disassemble_check_for_hi_and_foo(target, f, binaryname)
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@no_debug_info_test
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@skipIfLLVMTargetMissing("AArch64")
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def test_arm64_32(self):
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src_dir = self.getSourceDir()
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yaml_path = os.path.join(src_dir, "a.out-arm64_32.yaml")
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obj_path = self.getBuildArtifact("a.out-arm64_32")
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self.yaml2obj(yaml_path, obj_path)
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target = self.dbg.CreateTarget(obj_path)
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self.assertTrue(target, VALID_TARGET)
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mains = target.FindFunctions("main")
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for f in mains.symbols:
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binaryname = f.GetStartAddress().GetModule().GetFileSpec().GetFilename()
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if binaryname == "a.out-arm64_32":
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self.disassemble_check_for_hi_and_foo(target, f, binaryname)
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def disassemble_check_for_hi_and_foo(self, target, func, binaryname):
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insns = func.GetInstructions(target)
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found_hi_string = False
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found_foo = False
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# The binary has an ADRP + ADD instruction pair which load
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# the pc-relative address of a c-string, and loads the address
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# of a function into a function pointer. lldb should show
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# that c-string and the name of that function in the disassembly
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# comment field.
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for i in insns:
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if "HI" in i.GetComment(target):
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found_hi_string = True
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if "foo" in i.GetComment(target):
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found_foo = True
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if found_hi_string == False or found_foo == False:
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print('Did not find "HI" string or "foo" in disassembly symbolication in %s' % binaryname)
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if self.TraceOn():
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strm = lldb.SBStream()
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insns.GetDescription(strm)
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print('Disassembly of main(), looking for "HI" and "foo" in comments:')
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print(strm.GetData())
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self.assertTrue(found_hi_string)
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self.assertTrue(found_foo)
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