<div dir="ltr"><div>Thank you very much, <i style="font-size:12px;font-family:arial,sans-serif">Granata.</i><br></div><div><br></div><div>I did not construct frame unwinder for my target ISA in lldb_private::Thread::GetUnwinder(), and thus it returned a null pointer.<br>
</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/12/31 Enrico Granata <span dir="ltr"><<a href="mailto:egranata@apple.com" target="_blank">egranata@apple.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto"><div>Is it me or 0x10 is not a valid address?</div><div>At a glance, you get that kind of address when you are dereferencing an iVar of a zeroed-out pointer, and 16 would be the offset of the mutex from the base of the class.</div>
<div>You might want to check along the stack if you are accessing a NULL object without checking first.<br><br>Sent from the iPhone of<div><i>Enrico Granata</i> <egranata@đ.com></div></div><div><div class="h5"><div>
<br>On Dec 31, 2013, at 3:44 AM, æšćć <<a href="mailto:triple.yang@gmail.com" target="_blank">triple.yang@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr"><div><div>Hi, all.<br><br></div>
<div>I am porting lldb for a VLIW target with host env gcc-4.8.2/redhat enterprise linux 6.2.<br></div>This problem happens in member function lldb_private::Unwind::GetFrameInfoAtIndex() when it tries to lock member "m_unwind_mutex" whose runtime address is 0x10 (checked via GDB).<br>
</div><div><div><br clear="all"><div>I am not familiar with mutex errors, does anyone have clues?<br></div><div><span><em>Thanks in advance!</em></span></div><div><br>-- <br>æšćć (Yang Yong-Yong)
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</div>-- <br>æšćć (Yang Yong-Yong)
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