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* move tlsdesc and internal dl function declarations to dynlink.hRich Felker2018-09-121-2/+1
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* define and use internal macros for hidden visibility, weak refsRich Felker2018-09-051-2/+1
| | | | | | | | | this cleans up what had become widespread direct inline use of "GNU C" style attributes directly in the source, and lowers the barrier to increased use of hidden visibility, which will be useful to recovering some of the efficiency lost when the protected visibility hack was dropped in commit dc2f368e565c37728b0d620380b849c3a1ddd78f, especially on archs where the PLT ABI is costly.
* move static-linked stub dlsym out of dynlink.cRich Felker2016-01-251-0/+13
the function name is still __-prefixed because it requires an asm wrapper to pass the caller's address in order for RTLD_NEXT to work. since this was the last function in dynlink.c still used for static linking, now the whole file is conditional on SHARED being defined.