<div dir="ltr">According to bisect, the culprit is:<div><br></div><div><div>Author: Todd Fiala <<a href="mailto:todd.fiala@gmail.com">todd.fiala@gmail.com</a>></div><div>Date: Fri Jun 27 16:52:49 2014 +0000</div><div>
<br></div><div> Fix ObjectFileELF to determine architectures independent of host.</div><div><br></div><div> Previously ObjectFileELF was simplifying and assuming the object file it was</div><div> looking at was the same as the host architecture/triple. This would break</div>
<div> attempts to run, say, lldb on MacOSX against lldb-gdbserver on Linux since</div><div> the MacOSX lldb would say that the linux elf file was really an Apple MacOSX</div><div> architecture. Chaos would ensue.</div>
<div><br></div><div> This change allows the elf file to parse ELF notes for Linux, FreeBSD and</div><div> NetBSD, and determine the OS appropriately from them. It also initializes</div><div> the OS type from the ELF header OSABI if it is set (which it is for FreeBSD</div>
<div> but not for Linux).</div><div><br></div><div> Added a test with freebsd and linux images that verify that</div><div> '(lldb) image list -t -A' prints out the expected architecture for each.</div><div>
<br></div><div><br></div><div> git-svn-id: <a href="https://llvm.org/svn/llvm-project/lldb/trunk@211907">https://llvm.org/svn/llvm-project/lldb/trunk@211907</a> 91177308-0d34-0410-b5e6-96231b3b80d8</div></div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Mon, Jul 21, 2014 at 5:24 PM, Todd Fiala <span dir="ltr"><<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi again,<div><br></div><div>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.</div><div><br></div><div>Thanks,</div><div>
Todd</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jul 21, 2014 at 5:10 PM, Todd Fiala <span dir="ltr"><<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><p style="margin:1.2em 0px!important">FWIW - I just tried this on Ubuntu 14.04 with a build at r213575 (earlier today):</p>
<pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;display:inline;background-color:rgb(248,248,248);white-space:pre-wrap;overflow:auto;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important;display:block;padding:0.5em;color:rgb(51,51,51);background:rgb(248,248,255)">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)
</code></pre><p style="margin:1.2em 0px!important">That seemed to work, but is Ubuntu 14.04 vs. 12.04.</p>
<p style="margin:1.2em 0px!important">-Todd</p>
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<div class="gmail_quote">On Mon, Jul 21, 2014 at 5:08 PM, Todd Fiala <span dir="ltr"><<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">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.<div>
<br></div><div>With recent platform additions, we may have borked something.</div>
<div><br></div><div>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.</div><div><br></div></div><div>
<div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Mon, Jul 21, 2014 at 5:05 PM, Keno Fischer <span dir="ltr"><<a href="mailto:kfischer@college.harvard.edu" target="_blank">kfischer@college.harvard.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>This is on</div><div><br></div>64-bit Ubuntu 12.04.4 LTS (GNU/Linux 3.2.0-61-generic x86_64)<div><br></div><div>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.</div>
</div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jul 21, 2014 at 5:01 PM, Todd Fiala <span dir="ltr"><<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Keno,<div><br></div><div>Which Linux distribution and bitness (64/32) are you on?</div><div><br></div>
<div>I've seen similar behavior when platforms or object files inappropriately identify (or mis-identify) which files they can do something with.</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div>On Mon, Jul 21, 2014 at 3:26 PM, Keno Fischer <span dir="ltr"><<a href="mailto:kfischer@college.harvard.edu" target="_blank">kfischer@college.harvard.edu</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>I just rebuilt lldb on a linux machine (usually I'm on mac), and I'm<br>
seeing this (for all programs on the machine). Has anybody seen this<br>
before (before I dive into debugging)?<br>
<br>
>usr/bin/lldb /bin/ls<br>
error: '/bin/ls' doesn't contain the architecture x86_64<br>
<br>
Keno<br></div></div>
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