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On 7/19/2012 10:05 AM, Stephan Raue wrote:thanks much!Hi,WARNING: You should replace all core libraries with the 2.15 versions. The dynamic linker and libc share state and should be at matching versions.
after upgrading my embedded distribution from eglibc-2.15 to 2.16 i get libc related segfaults with every program. Because this distro uses shell based init scripts and busybox, which also segfaults provides the shell i cant boot into the system with eglibc-2.16. With eglibc-2.15 all is working.
I have tried to boot in to a system with eglibc-2.15 and copy the eglibc-2.16 filessystem to a writabable location in /storage: root ~ # LD_LIBRARY_PATH=/storage/system/lib/ /storage/system/bin/busybox Segmentation fault
if i replace /storage/system/lib/libc.so.6 with the one from eglibc-2.15 system:
This is likely a crash in the dynamic loader.root ~ # LD_LIBRARY_PATH=/storage/system/lib/ /storage/system/bin/busybox BusyBox v1.20.2 (2012-07-19 08:32:53 CEST) multi-call binary. Copyright (C) 1998-2011 Erik Andersen, Rob Landley, Denys Vlasenko ...
how i can debug this system to get more infos to provide to find the issue? i have GDB and STRACE installed on the system, if i run gdb: root ~ # gdb /storage/system/bin/busybox GNU gdb (GDB) 7.4.50.20120716 ... (gdb) set environment LD_LIBRARY_PATH=/storage/system/lib/ (gdb) run Starting program: /storage/system/bin/busybox During startup program terminated with signal SIGSEGV, Segmentation fault. (gdb) bt No stack.
You need to debug the dynamic loader.
Start by running with LD_DEBUG=all and see how far you get.
Cheers, Carlos.
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