[ Sorry for sending twice, forgot to reply to the list ] On Fri, Mar 26, 2010 at 11:23:30PM +0300, coo...@gmail.com wrote: > Hello. > in qemu 0.9.x there was a special file with micro-operations, which > implemented access to memory. For example for arm architecture it > was op_mem.h file. I was able to add some printfs to this functions > and get information about memory accesses. > > My question is : how memory access microoperations are now > implemented in qemu 0.12.x ? > > Thanks for you answers.
To generate load and store operations, tcg_gen_qemu_{ld,st}*() are now used. See tcg/README for more information on TCG ops. In tcg/*/tcg-target.c, you'll find tcg_out_qemu_{ld,st}(). The easiest way to do this would probably be to place your printfs in __ld_mmu() and __st_mmu() (which are defined via softmmu_template.h), and remove the TLB lookups from tcg_out_qemu_{ld,st}() so that your tracing code is always called. Instead of modifying tcg_out_qemu_{ld,st}(), you might also be able to bypass it entirely, by using having tcg_gen_qemu_{ld,st}*() generate calls to a helper function. Cheers, -- Stuart Brady