[lldb-dev] TestRegisterVariables broken on FreeBSD in the last couple of days

[Siva Chandra]

Hi,

If anyone, I could have "broken" it. However, I do not think I really
broke it. It was disabled for clang initially, I only enabled it.

Further, if I look at the stdio for the latest completed build on bot
(5512), I see this:

PASS: LLDB (clang-x86_64) :: test_with_dwarf_and_run_command
(TestRegisterVariables.RegisterVariableTestCase)

Can you tell me how you are running this? The error you are have given
should occur if you use GCC to compile the test case (and the hence
the test case is marked xfail for GCC).

Thanks,
Siva Chandra

On Wed, May 6, 2015 at 6:40 AM, Ed Maste <emaste at freebsd.org> wrote:
> A commit between r236411 (works) and r236595 (fails) broke
> TestRegisterVariables on FreeBSD. I'll bisect the specific commit
> later on but wanted to mention it in case the issue is obvious to the
> author of the related chagnes:
>
> ..
> python2.7 SBCommandInterpreter(0x801c6ac00)::HandleCommand
> (command="expr c", SBCommandReturnObject(0x801c27b00),
> add_to_history=0)
> python2.7 SBCommandReturnObject(0x801c27b00)::GetError () => "error:
> Couldn't materialize: couldn't get the value of variable c: Unable to
> convert register kind=1 reg_num=4294967294 to a native register
> number.
>
> Errored out in Execute, couldn't PrepareToExecuteJITExpression
> ...
> ======================================================================
> FAIL: test_with_dwarf_and_run_command
> (TestRegisterVariables.RegisterVariableTestCase)
>    Test expressions on register values.
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/tank/emaste/src/llvm/tools/lldb/test/lldbtest.py", line 498, in wrapper
>     return func(self, *args, **kwargs)
>   File "/tank/emaste/src/llvm/tools/lldb/test/lldbtest.py", line 562, in wrapper
>     func(*args, **kwargs)
>   File "/tank/emaste/src/llvm/tools/lldb/test/lang/c/register_variables/TestRegisterVariables.py",
> line 25, in test_with_dwarf_and_run_command
>     self.const_variable()
>   File "/tank/emaste/src/llvm/tools/lldb/test/lang/c/register_variables/TestRegisterVariables.py",
> line 79, in const_variable
>     substrs = ['(int) $3 = 5'])
>   File "/tank/emaste/src/llvm/tools/lldb/test/lldbtest.py", line 2190, in expect
>     self.runCmd(str, msg=msg, trace = (True if trace else False),
> check = not error, inHistory=inHistory)
>   File "/tank/emaste/src/llvm/tools/lldb/test/lldbtest.py", line 2116, in runCmd
>     msg if msg else CMD_MSG(cmd))
> AssertionError: False is not True : Variable(s) displayed correctly
> Config=x86_64-/usr/bin/clang
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