My memory is fuzzy and I had to dig through the archives a bit, but I
seem to recall that it used to be that -pg will not work WITHOUT
-ffunction-sections on 32-bit, because the call to _mcount was done
using b,l. Dave and I fixed this in gcc in 2003 though.
I did find another thread about this here:
http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html
The followup replies from Ian Taylor and Jeff Law concurs with what you
said below, but it looks like nothing has been done (yet?)
randolph
John David Anglin wrote:
It will currently only work with 64bit kernels, because the gcc options -pg
and -ffunction-sections can't be enabled at the same time and -ffunction-sections
is still needed to be able to link 32bit kernels.
I have done some testing. As far as I can tell, -pg works with
-ffunction-sections on hppa-unknown-linux-gnu and hppa64-hp-hpux11.
hppa2.0w-hp-hpux11 doesn't support -ffunction-sections. So, I think
we should propose that the code that disables -ffunction-sections
with -pg be removed.
Dave
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