I'd start by seeing if lldb knows where the binaries are loaded in this
session. e.g.
(lldb) im loo -a $pc
It doesn't look like lldb knows what Module you're in and doesn't have a
function/symbol name either. There's probably no eh_frame unwind info and IIRC
your system's libraries are all built -fomit-frame-pointer so a blind stack
walk will fail.
I don't know how solid lldb's corefile support is on Linux. It may be that
you're not able to find where all the solibs are loaded when doing core file
debugging.
This is also a little disheartening,
* thread #1: tid = 0, 0x00007ffba3bb2425, name = 'lldb-gdbserver', stop reason
= signal SIGABRT
frame #0: 0x00007ffba3bb2425
-> 0x7ffba3bb2425: addb %al, (%rax)
0x7ffba3bb2427: addb %al, (%rax)
0x7ffba3bb2429: addb %al, (%rax)
0x7ffba3bb242b: addb %al, (%rax)
this means that lldb is getting back 0x00's when it is trying to read memory
out of the core file I expect.
On Feb 7, 2014, at 3:49 PM, Todd Fiala <[email protected]> wrote:
> Yeah - I hit "enter" by accident :-) The next comment fills in the rest.
> Short version: gdb + gold linker + assert = backtrace, lldb + gold linker =
> assert = failure.
>
> Not high priority, but will stop me from using the gold linker even though it
> gives me a 6-7% speed increase.
>
>
> On Fri, Feb 7, 2014 at 3:32 PM, <[email protected]> wrote:
> Bug ID 18769
> Summary lldb fails to stack unwind gold linker exes that assert
>
> Product lldb
> Version unspecified
> Hardware PC
> OS Linux
> Status NEW
> Severity normal
> Priority P
> Component All Bugs
> Assignee [email protected]
> Reporter [email protected]
> Classification Unclassified
>
> I'm hitting an assertion in lldb-gdbserver. On Ubuntu 12.04 x86_64, using the
> gold linker 'sudo apt-get install binutils-gold', with a cmake/ninja build, I
> am not able to get a valid backtrace out of lldb for lldb-gdbserver when it
> generates
>
>
> You are receiving this mail because:
> • You are the assignee for the bug.
>
> _______________________________________________
> lldb-dev mailing list
> [email protected]
> http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
>
>
>
>
> --
> Todd Fiala | Software Engineer | [email protected] | 650-943-3180
>
> _______________________________________________
> lldb-dev mailing list
> [email protected]
> http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
_______________________________________________
lldb-dev mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
