135 lines
4.9 KiB
Python
135 lines
4.9 KiB
Python
"""
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Test the 'memory read' command.
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"""
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import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as lldbutil
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class MemoryReadTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break inside main().
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self.line = line_number('main.cpp', '// Set break point at this line.')
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def test_memory_read(self):
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"""Test the 'memory read' command with plain and vector formats."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Break in main() after the variables are assigned values.
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs=['stopped', 'stop reason = breakpoint'])
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# The breakpoint should have a hit count of 1.
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self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
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substrs=[' resolved, hit count = 1'])
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# Test the memory read commands.
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# (lldb) memory read -f d -c 1 `&argc`
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# 0x7fff5fbff9a0: 1
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self.runCmd("memory read -f d -c 1 `&argc`")
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# Find the starting address for variable 'argc' to verify later that the
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# '--format uint32_t[] --size 4 --count 4' option increments the address
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# correctly.
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line = self.res.GetOutput().splitlines()[0]
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items = line.split(':')
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address = int(items[0], 0)
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argc = int(items[1], 0)
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self.assertGreater(address, 0)
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self.assertEquals(argc, 1)
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# (lldb) memory read --format uint32_t[] --size 4 --count 4 `&argc`
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# 0x7fff5fbff9a0: {0x00000001}
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# 0x7fff5fbff9a4: {0x00000000}
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# 0x7fff5fbff9a8: {0x0ec0bf27}
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# 0x7fff5fbff9ac: {0x215db505}
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self.runCmd(
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"memory read --format uint32_t[] --size 4 --count 4 `&argc`")
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lines = self.res.GetOutput().splitlines()
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for i in range(4):
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if i == 0:
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# Verify that the printout for argc is correct.
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self.assertTrue(
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argc == int(
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lines[i].split(':')[1].strip(' {}'), 0))
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addr = int(lines[i].split(':')[0], 0)
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# Verify that the printout for addr is incremented correctly.
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self.assertEquals(addr, (address + i * 4))
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# (lldb) memory read --format char[] --size 7 --count 1 `&my_string`
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# 0x7fff5fbff990: {abcdefg}
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self.expect(
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"memory read --format char[] --size 7 --count 1 `&my_string`",
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substrs=['abcdefg'])
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# (lldb) memory read --format 'hex float' --size 16 `&argc`
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# 0x7fff5fbff5b0: error: unsupported byte size (16) for hex float
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# format
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self.expect(
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"memory read --format 'hex float' --size 16 `&argc`",
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substrs=['unsupported byte size (16) for hex float format'])
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self.expect(
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"memory read --format 'float' --count 1 --size 8 `&my_double`",
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substrs=['1234.'])
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# (lldb) memory read --format 'float' --count 1 --size 20 `&my_double`
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# 0x7fff5fbff598: error: unsupported byte size (20) for float format
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self.expect(
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"memory read --format 'float' --count 1 --size 20 `&my_double`",
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substrs=['unsupported byte size (20) for float format'])
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self.expect('memory read --type int --count 5 `&my_ints[0]`',
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substrs=['(int) 0x', '2', '4', '6', '8', '10'])
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self.expect(
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'memory read --type int --count 5 --format hex `&my_ints[0]`',
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substrs=[
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'(int) 0x',
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'0x',
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'0a'])
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self.expect(
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'memory read --type int --count 5 --offset 5 `&my_ints[0]`',
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substrs=[
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'(int) 0x',
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'12',
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'14',
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'16',
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'18',
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'20'])
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# the gdb format specifier and the size in characters for
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# the returned values including the 0x prefix.
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variations = [['b', 4], ['h', 6], ['w', 10], ['g', 18]]
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for v in variations:
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formatter = v[0]
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expected_object_length = v[1]
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self.runCmd(
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"memory read --gdb-format 4%s &my_uint64s" % formatter)
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lines = self.res.GetOutput().splitlines()
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objects_read = []
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for l in lines:
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objects_read.extend(l.split(':')[1].split())
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# Check that we got back 4 0x0000 etc bytes
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for o in objects_read:
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self.assertTrue (len(o) == expected_object_length)
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self.assertEquals(len(objects_read), 4)
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