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r_init_stats
2006 Jan 05
1
Using gcc4 visibility features
...lity features: for an in-depth
account see
http://people.redhat.com/drepper/dsohowto.pdf
(and note there are older versions of that document around).
Consider for example stats.so. On a gcc4 Linux system this has just three
entry points
gannet% nm -g stats.so | grep " T "
00002720 T R_init_stats
0004a544 T _fini
00001f28 T _init
since the only entry point we need is the symbol registration. This
results in a smaller DSO and a faster load. It is only worth doing for
shared objects with many entry points, but this one had 262.
It also gives another reason for the registration of symbol...