Avoid GCC 4.7 optimization in elf/soinit.c

Andreas Schwab schwab@redhat.com
Tue Sep 27 14:19:00 GMT 2011


Andreas Jaeger <aj@suse.de> writes:

> We recently got a bug report and analysis showed that gcc 4.7 optimized 
> __libc_fini and __libc_global_ctors to empty functions since it checked the 
> size of __CTOR_LIST__ and does not know that glibc changes the size at link 
> time.
>
> Bug report is:
> https://bugzilla.novell.com/show_bug.cgi?id=717671
>
> I'm appending a patch that fixes the problem,

A better approach is perhaps to make __[CD]TOR_LIST__ volatile.

Andreas.

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Andreas Schwab, schwab@redhat.com
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