Hi, is it possible to build a dpdk app as a shared library?
I tried to put 'include $(RTE_SDK)/mk/rte.extshared.mk' in my Makefile (and define SHARED) and it builds .so lib, but all rte_* symbols are undefined. After that i tried adding: LDLIBS += -lrte_eal -lrte_mbuf -lrte_cmdline -lrte_timer -lrte_mempool -lrte_ring -lrte_pmd_ring -lethdev -lrte_malloc And now almost all symbols in .so file are defined (missing only rte_hexdump). I thought this was gonna be it. But after using this library, pci probe-ing fails since I don't have any pmd drivers registered, and rte_eth_dev_count() returns 0. But how are drivers supposed to be registered? When I use gdb with regular dpdk app (not shared library), I can see this: #0 0x000000000046fab0 in rte_eal_driver_register () #1 0x0000000000418fb7 in devinitfn_bond_drv () #2 0x00000000004f15ed in __libc_csu_init () #3 0x00007ffff6efee55 in __libc_start_main (main=0x41ee65 <main>, argc=1, argv=0x7fffffffe4f8, init=0x4f15a0 <__libc_csu_init>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe4e8) at libc-start.c:246 #4 0x000000000041953c in _start () Ok, if I'm not mistaken, it seems driver registration is called before main. How is this accomplished? Cause in shared library build, I don't have this before main() and after rte_eal_init() (since driver list is empty) everything else fails. Any suggestions please? I'd really appreciate it... BR, Newman P.
