Messages in this thread | | | Date | Wed, 14 May 2008 11:52:23 +0100 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH] common implementation of iterative div/mod |
| |
Andi Kleen wrote: > Jeremy Fitzhardinge wrote: > >> Andi Kleen wrote: >> >>> You would need to annotate it and have a separate object file for the >>> different sections. Also it would need to be compiled PIC. >>> >>> Inlining is better. >>> >> BTW, I'm seeing the memcpy() in __vdso_gettimeofday() not being inlined. >> > > Hmm works here. What compiler do you use? Normally gcc should > recognize the memcpy is just two constant stores and always inline even with -Os. >
It's: jeremy@cosworth:~/hg/xen/paravirt/linux-x86_64$ gcc -v Reading specs from /usr/lib/gcc/x86_64-linux/3.4.4/specs Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr --libexecdir=/usr/lib --with-gxx-include-dir=/usr/include/c++/3.4 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --program-suffix=-3.4 --enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk --disable-werror x86_64-linux Thread model: posix gcc version 3.4.4 20050314 (prerelease) (Debian 3.4.3-13)
I think this is still a supported compiler, isn't it?
J
| |