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Libc: Difference between revisions
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* be linked with -rdynamic/--export-dynamic, and | * be linked with -rdynamic/--export-dynamic, and | ||
* provide frame pointers (none for inlined code, omitted with most [[gcc]] optimization levels) | * provide frame pointers (none for inlined code, omitted with most [[gcc]] optimization levels) | ||
==Using an alternate Glibc== | |||
So you've installed a local build of Glibc to, say, $HOME/glibc, eh? | |||
Trying to run with <tt>LD_LIBRARY_PATH=$HOME/glibc/lib</tt> will result in all dynamically-linked executables segfaulting immediately. That's because they're using a mismatched loader. Try running the correct loader directly to sanity-check your library install, e.g.: | |||
<pre> | |||
[schwarzgerat](0) $ /bin/echo | |||
Segmentation fault (core dumped) | |||
[schwarzgerat](139) $ ~/glibc/lib/ld-linux-x86-64.so.2 /bin/echo this will work | |||
this will work | |||
[schwarzgerat](0) $ | |||
</pre> | |||
