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Date: Wed, 24 Jan 2018 16:18:59 -0800 (PST)
From: Po-yi Wang <player@....bc.ca>
To: musl@...ts.openwall.com
Subject: any one managed to compile and run xz-5.0.8 or xz-5.2.3 ?

hi

any one managed to compile and run xz with musl on ppc target ?
i've managed to compile and run "xz --version" on i486 and arm targets, 
but not on ppc target. i've tried gcc-3.4.5 and gcc-4.1.2.
gcc-3.4.5 version simply hangs, while gcc-4.1.2 version seg faults --
with seg fault, i can at least use gdb to get some info out. i do not know 
how to use gdb to trace a hanged program. anyway, this is the output for 
gcc-4.1.2 compiled version. (xz-5.0.8):

gdb src/xz/xz

GNU gdb (GDB) 7.12.1
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "powerpc-unknown-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from src/xz/xz...done.
(gdb) run --version
Starting program: /tmp/build/xz-5.0.8/src/xz/xz --version

Program received signal SIGSEGV, Segmentation fault.
0x4806fab8 in _dlstart_c (sp=0xbffff4a0, dynv=0x480b2ae4) at 
ldso/dlstart.c:146
146             GETFUNCSYM(&dls2, __dls2, base+dyn[DT_PLTGOT]);
(gdb) bt
#0  0x4806fab8 in _dlstart_c (sp=0xbffff4a0, dynv=0x480b2ae4)
     at ldso/dlstart.c:146
#1  0x480778ec in _dlstart () from /lib/ld-musl-powerpc-sf.so.1
(gdb) quit
A debugging session is active.

         Inferior 1 [process 22188] will be killed.

Quit anyway? (y or n) y


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