Profiling+nested functions+dynamic linking on IA-64/Linux
Richard Henderson
rth@redhat.com
Mon Oct 24 19:23:00 GMT 2005
On Mon, Oct 24, 2005 at 05:37:06PM +0200, Eric Botcazou wrote:
> Would that be fixable purely on the compiler side without too much kludgery?
Yes. Instead of a direct call, load the fptr for _mcount and do an
indirect call. That'll avoid the dynamic linker. You can conditionalize
this on cfun->static_chain_decl to avoid the extra work when nested
functions aren't involved.
Also, technically fptrs (and thus dynamic linking) isn't used when either
TARGET_NO_PIC or TARGET_AUTO_PIC are set. Of course, I wouldn't expect
nested functions to be used here either, but...
r~
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