According to bisect, the culprit is:
Author: Todd Fiala <todd.fi...@gmail.com>
Date: Fri Jun 27 16:52:49 2014 +0000
Fix ObjectFileELF to determine architectures independent of host.
Previously ObjectFileELF was simplifying and assuming the object file
it was
looking at was the same as the host architecture/triple. This would
break
attempts to run, say, lldb on MacOSX against lldb-gdbserver on Linux
since
the MacOSX lldb would say that the linux elf file was really an Apple
MacOSX
architecture. Chaos would ensue.
This change allows the elf file to parse ELF notes for Linux, FreeBSD
and
NetBSD, and determine the OS appropriately from them. It also
initializes
the OS type from the ELF header OSABI if it is set (which it is for
FreeBSD
but not for Linux).
Added a test with freebsd and linux images that verify that
'(lldb) image list -t -A' prints out the expected architecture for each.
git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@211907
91177308-0d34-0410-b5e6-96231b3b80d8
On Mon, Jul 21, 2014 at 5:24 PM, Todd Fiala <tfi...@google.com> wrote:
> Hi again,
>
> Keno - what revision of lldb are you synched to? I recall seeing some
> platform changes go in today, I think after my last sync/build.
>
> Thanks,
> Todd
>
>
> On Mon, Jul 21, 2014 at 5:10 PM, Todd Fiala <tfi...@google.com> wrote:
>
>> FWIW - I just tried this on Ubuntu 14.04 with a build at r213575 (earlier
>> today):
>>
>> tfiala@tfiala2:/mnt/ssd/work/macosx.sync/mbp-git/build-debug$ bin/lldb
>> (lldb) file /bin/ls
>> Current executable set to '/bin/ls' (x86_64).
>> (lldb) run
>> Process 20313 launching
>> Process 20313 launched: '/bin/ls' (x86_64)
>> Process 20313 stopped
>> * thread #1: tid = 20313, 0x00007fdaa88d42d0, name = 'ls', stop reason =
>> trace
>> frame #0: 0x00007fdaa88d42d0
>> error: No such process
>> 2014-06-29-23_22_22 CMakeFiles examples rules.ninja
>> 2014-06-29-23_22_40 cmake_install.cmake include share
>> bin CPackConfig.cmake lib test
>> build.ninja CPackSourceConfig.cmake lldb-test-traces tools
>> cmake docs LLVMBuild.cmake unittests
>> CMakeCache.txt DummyConfigureOutput projects utils
>> Process 20313 exited with status = 0 (0x00000000)
>> (lldb)
>>
>> That seemed to work, but is Ubuntu 14.04 vs. 12.04.
>>
>> -Todd
>>
>>
>>
>> On Mon, Jul 21, 2014 at 5:08 PM, Todd Fiala <tfi...@google.com> wrote:
>>
>>> Can you send me your /bin/ls? (Direct send to me, might need to .tar.gz
>>> it). I can see if we're identifying it correctly at the object file level.
>>>
>>> With recent platform additions, we may have borked something.
>>>
>>> Have you tried running the tests on your end? There are a few tests in
>>> test/functionalities/object-file that will verify if we're parsing the
>>> object files correctly.
>>>
>>>
>>>
>>> On Mon, Jul 21, 2014 at 5:05 PM, Keno Fischer <
>>> kfisc...@college.harvard.edu> wrote:
>>>
>>>> This is on
>>>>
>>>> 64-bit Ubuntu 12.04.4 LTS (GNU/Linux 3.2.0-61-generic x86_64)
>>>>
>>>> I started a bisect. I can confirm that this worked on Feb 28 (I chose
>>>> that arbitrarily for the start of the bisect), so it must have broken
>>>> since.
>>>>
>>>>
>>>> On Mon, Jul 21, 2014 at 5:01 PM, Todd Fiala <tfi...@google.com> wrote:
>>>>
>>>>> Hi Keno,
>>>>>
>>>>> Which Linux distribution and bitness (64/32) are you on?
>>>>>
>>>>> I've seen similar behavior when platforms or object files
>>>>> inappropriately identify (or mis-identify) which files they can do
>>>>> something with.
>>>>>
>>>>>
>>>>> On Mon, Jul 21, 2014 at 3:26 PM, Keno Fischer <
>>>>> kfisc...@college.harvard.edu> wrote:
>>>>>
>>>>>> I just rebuilt lldb on a linux machine (usually I'm on mac), and I'm
>>>>>> seeing this (for all programs on the machine). Has anybody seen this
>>>>>> before (before I dive into debugging)?
>>>>>>
>>>>>> >usr/bin/lldb /bin/ls
>>>>>> error: '/bin/ls' doesn't contain the architecture x86_64
>>>>>>
>>>>>> Keno
>>>>>> _______________________________________________
>>>>>> lldb-dev mailing list
>>>>>> lldb-dev@cs.uiuc.edu
>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Todd Fiala | Software Engineer | tfi...@google.com | 650-943-3180
>>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Todd Fiala | Software Engineer | tfi...@google.com | 650-943-3180
>>>
>>
>>
>>
>> --
>> Todd Fiala | Software Engineer | tfi...@google.com | 650-943-3180
>>
>
>
>
> --
> Todd Fiala | Software Engineer | tfi...@google.com | 650-943-3180
>
_______________________________________________
lldb-dev mailing list
lldb-dev@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
