[llvm-dev] Linux/ARM: Segfault issue when we build clang sources including __thread variable using -O2 flag

[Geunsik Lim via llvm-commits]

It's strange. I my case, I have used  objdump version 2.24 as following on
the Ubuntu 14.04 X64 PC.
Could you share me the version of binutils that you have used to display
the  "*****  <__tls_get_addr at plt>" content?
Do you mean that you can still display  __tls_getaddr at plt information "objdump
-d" command
from the shared object file "./libcoreclr.so"  on your Linux distribution?

invain at target:/work/nfs/runtime-arm-u1404-debug-mode-20160503-global-dynamic-O0$
arm-linux-gnueabi-objdump  --version
GNU objdump (GNU Binutils for Ubuntu) 2.24
Copyright 2013 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later
version.
This program has absolutely no warranty.
invain at target
:/work/nfs/runtime-arm-u1404-debug-mode-20160503-global-dynamic-O0$
invain at target
:/work/nfs/runtime-arm-u1404-debug-mode-20160503-global-dynamic-O0$
invain at target:/work/nfs/runtime-arm-u1404-debug-mode-20160503-global-dynamic-O0$
objdump --version
GNU objdump (GNU Binutils for Ubuntu) 2.24
Copyright 2013 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later
version.
This program has absolutely no warranty.
invain at target
:/work/nfs/runtime-arm-u1404-debug-mode-20160503-global-dynamic-O0$


On Tue, May 10, 2016 at 1:11 PM, Tim Northover <t.p.northover at gmail.com>
wrote:

> >>    28b428:       f8df 06d4       ldr.w   r0, [pc, #1748] ; 28bb00
> >>    28b42c:       4478            add     r0, pc
> >>    28b42e:       f5a6 e8c6       blx     315bc <__tls_get_addr at plt>
> >>    [...]
> >>
> > BTW, How could you get the  "*****  <__tls_get_addr at plt>" content?
> > When I ran the below commands, I could not get the  "*****
> <__tls_get_addr at plt>" line.
> > u14.04$> cd ./runtime-arm-u1404-debug-mode-20160503-global-dynamic-O2/
> > u14.04$> objdump -d ./libcoreclr.so  | grep tls_get_addr
>
> Maybe you've got an older version of objdump? I'm afraid I don't
> really know much about binutils changes over the years.
>
> Tim.
>



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