Error compiling F-stack on aarch64

[baipaiha]

Trying to build F-stack on aarch64/arm64 with ubuntu 22.04 (Bluefield-2 DPU / Cortex-A72) Assuming it can be supported since i've seen commits about aarch64/arm64: c74bbd605e89bf9ff30b780902b4cf1f8349dc22

• After fixing missing stdlib.h includes in ff_dpdk_if.c and ff_dpdk_pcap.c:

  ff_dpdk_if.c:160:11: error: implicit declaration of function ‘calloc’

• Build continue but fail on ff_compat.c:

  ~f-stack/lib$ make
  cc -c -O2 -pipe -fno-strict-aliasing  -std=c99  -Wall -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-inline -Wcast-qual -Wno-pointer-sign -Wmissing-include-dirs -fdiagnostics-show-option -Wno-unused-but-set-variable -Wno-address-of-packed-member -fno-common -finline-limit=15000 --param inline-unit-growth=100 --param large-function-growth=1000  -DINET -Wno-error=stringop-overflow -Wno-error=stringop-overread -DINET6 -DTCPHPTS -DRATELIMIT -DFSTACK -fstack-protector -D__FreeBSD__ -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -fno-builtin -I/home/ubuntu/work/f-stack/lib/include -undef -imacros filtered_predefined_macros.h -nostdinc  -I. -I/home/ubuntu/work/f-stack/lib/../freebsd -I. -I/home/ubuntu/work/f-stack/lib/../freebsd/contrib/ck/include -I./machine_include -I./opt -Werror -Wno-unused-variable  ff_compat.c -o ff_compat.o
  In file included from /home/ubuntu/work/f-stack/lib/include/machine/pcpu.h:31,
               from /home/ubuntu/work/f-stack/lib/../freebsd/sys/pcpu.h:50,
               from /home/ubuntu/work/f-stack/lib/include/sys/pcpu.h:31,
               from /home/ubuntu/work/f-stack/lib/../freebsd/sys/systm.h:178,
               from /home/ubuntu/work/f-stack/lib/include/sys/systm.h:32,
               from /home/ubuntu/work/f-stack/lib/../freebsd/sys/refcount.h:36,
               from ff_compat.c:33:
  ./machine_include/machine/pcpu.h:59:23: error: call-clobbered register used for global register variable [-Werror]
  59 | register struct pcpu *pcpup __asm ("x18");
    |                       ^~~~~
  cc1: all warnings being treated as errors
  make: *** [Makefile:671: ff_compat.o] Error 1

• By trying to remove -Werror, build fail on ff_freebsd_init.c:

  ff_freebsd_init.c: In function ‘ff_freebsd_init’:
  /home/ubuntu/work/f-stack/lib/include/machine/pcpu.h:50:40: error: ‘struct pcpu’ has no member named ‘pc_prvspace’
  50 | #define PCPU_SET(member, val)    (pcpup->pc_ ## member = (val))
    |                                        ^~
  ff_freebsd_init.c:153:5: note: in expansion of macro ‘PCPU_SET’
  153 |     PCPU_SET(prvspace, pcpup);
    |     ^~~~~~~~
  make: *** [Makefile:672: ff_freebsd_init.o] Error 1

Has anyone successfully built f-stack on aarch64 ? Any idea on how to fix the call-clobbered register used for global register variable error ?

[wanglailing]

./machine_include/machine/pcpu.h:60:23: error: call-clobbered register used for global register variable [-Werror] 60 | register struct pcpu *pcpup __asm ("x18"); | ^~~~~ you can add: -ffixed-x18 option to lib/Makefile

[wanglailing]

has no member named ‘pc_prvspace’, add the pc_prvspace to struct pcpu, deal it