Bug 6572 - [PowerPC] Buildroot uses wrong external toolchain libraries for non-generic architecture variants
Summary: [PowerPC] Buildroot uses wrong external toolchain libraries for non-generic a...
Status: RESOLVED INVALID
Alias: None
Product: buildroot
Classification: Unclassified
Component: Other (show other bugs)
Version: 2013.08
Hardware: PC All
: P5 normal
Target Milestone: ---
Assignee: unassigned
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-10-21 06:20 UTC by Aleksander
Modified: 2013-10-21 06:33 UTC (History)
1 user (show)

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Description Aleksander 2013-10-21 06:20:40 UTC 
Using Codesoucery external toolchain, and architecture variant 8548 / e500v2, toolchain libraries are copied from powerpc-linux-gnu/libc/nof but should be copied from powerpc-linux-gnu/libc/te500v2. 

Library powerpc-linux-gnu/libc/nof/usr/lib/libstdc++.so contains 'lwsync' instruction which is invalid on e500v2 and causes Invalid Instruction fault for every c++ based application.

I tested the temporaty workaround (copying te500v2 dir to nof dir) and it solved the bug.

I suppose that this bug might involve all PowerPC architecture variants.
Comment 1 Thomas De Schampheleire 2013-10-21 06:33:01 UTC 
Did you set BR2_TARGET_OPTIMIZATION ("Target optimizations") correctly in the toolchain menu? The help text of the CodeSourcery toolchains mention this:

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- e500v2 glibc, 32 bits
  Set BR2_TARGET_OPTIMIZATION to -te500v2
-------

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