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On Saturday 19 May 2012 10:17:02 Andreas Schwab wrote: > Mike Frysinger <vapier@gentoo.org> writes: > > the _mcount symbol lives in libc.so > > No, it doesn't any more. That's the whole point of the > __mcount_internal export. it does in glibc-2.15 and earlier: $ readelf -sW /lib64/libc.so.6 110: 00000000000e9310 91 FUNC GLOBAL DEFAULT 11 _mcount@@GLIBC_2.2.5 1960: 00000000000e9310 91 FUNC WEAK DEFAULT 11 mcount@@GLIBC_2.2.5 which means __mcount_internal@GLIBC_PRIVATE makes no sense because nothing external to glibc is referring to it whether a random glibc git version exported it doesn't matter as we only care about compatibility with releases -mike
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