Adding gcc-patches.
Hi Bernd, The table is used in libgomp (see my patch [1]), as proposed by Jakub (see [2]). The idea is that the order of entries in the host and target tables must be identical. This allows to set up one-to-one correspondence between host and target addresses. In my patch libgomp calls device_init_func from the plugin, that loads all libraries to the target, and returns the joint table with addresses for all libraries. But probably it's better to have a function like device_load, that will load only one library image, an return a table for this library. [1] http://gcc.gnu.org/ml/gcc-patches/2013-12/msg01896.html [2] http://gcc.gnu.org/ml/gcc-patches/2013-09/msg01392.html -- Ilya 2014/1/28 Bernd Schmidt <ber...@codesourcery.com> > > On 12/17/2013 12:39 PM, Michael V. Zolotukhin wrote: >> >> Here is a patch 2/3: Add tables generation. >> >> This patch is just a slightly modified patch sent a couple of weeks ago. >> When >> compiling with '-fopenmp' compiler generates a special symbol, containing >> addresses and sizes of globals/omp_fn-functions, and places it into a special >> section. Later, at linking, these sections are merged together and we get a >> single table with all addresses/sizes for entire binary. Also, in this >> patch we >> start to pass '__OPENMP_TARGET__' symbol to GOMP_target calls. > > > I also have a question about the code in this patch. I can see how the table > is constructed - what's not clear to me is how it is going to be used? How do > you map from a function or variable you want to look up to an index in this > table? > > > Bernd >
