ipipe 5.4.107 / 5.4.93 build issues on arm32

[Thomas Petazzoni <thomas.petazzoni@bootlin.com>]

Hello,

I just tested the following ipipe patches on arm32:

  https://xenomai.org/downloads/ipipe/v5.x/arm/ipipe-core-5.4.107-arm-1.patch
  https://xenomai.org/downloads/ipipe/v5.x/arm/ipipe-core-5.4.93-arm-0.patch

applied of course on the appropriate 5.4.x code base, configured with
the sama5_defconfig kernel configuration, and in both cases the build
fails with:

In file included from include/xenomai/cobalt/kernel/thread.h:26:0,
                 from include/xenomai/cobalt/kernel/sched.h:24,
                 from kernel/xenomai/intr.c:24:
kernel/xenomai/intr.c: In function ‘inc_irqstats’:
include/xenomai/cobalt/kernel/stat.h:61:49: error: passing argument 1 of ‘atomic_long_xchg’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  __prev = (xnstat_exectime_t *)atomic_long_xchg(&(sched)->current_account, (long)(new_account)); \
                                                 ^
include/xenomai/cobalt/kernel/stat.h:147:2: note: in expansion of macro ‘xnstat_exectime_set_current’
  xnstat_exectime_set_current(sched, new_account); \
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/xenomai/intr.c:123:2: note: in expansion of macro ‘xnstat_exectime_lazy_switch’
  xnstat_exectime_lazy_switch(sched, &statp->account, start);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./include/linux/atomic.h:76:0,
                 from ./include/asm-generic/bitops/lock.h:5,
                 from ./arch/arm/include/asm/bitops.h:243,
                 from ./include/linux/bitops.h:26,
                 from ./include/linux/kernel.h:12,
                 from ./include/asm-generic/bug.h:19,
                 from ./arch/arm/include/asm/bug.h:60,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/thread_info.h:12,
                 from ./include/asm-generic/current.h:5,
                 from ./arch/arm/include/generated/asm/current.h:1,
                 from ./include/linux/mutex.h:14,
                 from kernel/xenomai/intr.c:21:
./include/asm-generic/atomic-long.h:880:1: note: expected ‘atomic_long_t * {aka struct <anonymous> *}’ but argument is of type ‘xnstat_exectime_t ** {aka struct xnstat_exectime **}’
 atomic_long_xchg(atomic_long_t *v, long i)
 ^~~~~~~~~~~~~~~~
In file included from include/xenomai/cobalt/kernel/thread.h:26:0,
                 from include/xenomai/cobalt/kernel/sched.h:24,
                 from kernel/xenomai/intr.c:24:
kernel/xenomai/intr.c: In function ‘switch_to_irqstats’:
include/xenomai/cobalt/kernel/stat.h:61:49: error: passing argument 1 of ‘atomic_long_xchg’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  __prev = (xnstat_exectime_t *)atomic_long_xchg(&(sched)->current_account, (long)(new_account)); \
                                                 ^
include/xenomai/cobalt/kernel/stat.h:139:2: note: in expansion of macro ‘xnstat_exectime_set_current’
  xnstat_exectime_set_current(sched, new_account); \
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/xenomai/intr.c:132:2: note: in expansion of macro ‘xnstat_exectime_switch’
  xnstat_exectime_switch(sched, &statp->account);
  ^~~~~~~~~~~~~~~~~~~~~~
In file included from ./include/linux/atomic.h:76:0,
                 from ./include/asm-generic/bitops/lock.h:5,
                 from ./arch/arm/include/asm/bitops.h:243,
                 from ./include/linux/bitops.h:26,
                 from ./include/linux/kernel.h:12,
                 from ./include/asm-generic/bug.h:19,
                 from ./arch/arm/include/asm/bug.h:60,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/thread_info.h:12,
                 from ./include/asm-generic/current.h:5,
                 from ./arch/arm/include/generated/asm/current.h:1,
                 from ./include/linux/mutex.h:14,
                 from kernel/xenomai/intr.c:21:
./include/asm-generic/atomic-long.h:880:1: note: expected ‘atomic_long_t * {aka struct <anonymous> *}’ but argument is of type ‘xnstat_exectime_t ** {aka struct xnstat_exectime **}’
 atomic_long_xchg(atomic_long_t *v, long i)
 ^~~~~~~~~~~~~~~~
In file included from include/xenomai/cobalt/kernel/thread.h:26:0,
                 from include/xenomai/cobalt/kernel/sched.h:24,
                 from kernel/xenomai/intr.c:24:
kernel/xenomai/intr.c: In function ‘switch_from_irqstats’:
include/xenomai/cobalt/kernel/stat.h:61:49: error: passing argument 1 of ‘atomic_long_xchg’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  __prev = (xnstat_exectime_t *)atomic_long_xchg(&(sched)->current_account, (long)(new_account)); \
                                                 ^
include/xenomai/cobalt/kernel/stat.h:139:2: note: in expansion of macro ‘xnstat_exectime_set_current’
  xnstat_exectime_set_current(sched, new_account); \
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/xenomai/intr.c:138:2: note: in expansion of macro ‘xnstat_exectime_switch’
  xnstat_exectime_switch(sched, prev);
  ^~~~~~~~~~~~~~~~~~~~~~
In file included from ./include/linux/atomic.h:76:0,
                 from ./include/asm-generic/bitops/lock.h:5,
                 from ./arch/arm/include/asm/bitops.h:243,
                 from ./include/linux/bitops.h:26,
                 from ./include/linux/kernel.h:12,
                 from ./include/asm-generic/bug.h:19,
                 from ./arch/arm/include/asm/bug.h:60,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/thread_info.h:12,
                 from ./include/asm-generic/current.h:5,
                 from ./arch/arm/include/generated/asm/current.h:1,
                 from ./include/linux/mutex.h:14,
                 from kernel/xenomai/intr.c:21:
./include/asm-generic/atomic-long.h:880:1: note: expected ‘atomic_long_t * {aka struct <anonymous> *}’ but argument is of type ‘xnstat_exectime_t ** {aka struct xnstat_exectime **}’
 atomic_long_xchg(atomic_long_t *v, long i)
 ^~~~~~~~~~~~~~~~
In file included from include/xenomai/cobalt/kernel/thread.h:26:0,
                 from include/xenomai/cobalt/kernel/sched.h:24,
                 from kernel/xenomai/intr.c:24:
kernel/xenomai/intr.c: In function ‘switch_core_irqstats’:
include/xenomai/cobalt/kernel/stat.h:61:49: error: passing argument 1 of ‘atomic_long_xchg’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  __prev = (xnstat_exectime_t *)atomic_long_xchg(&(sched)->current_account, (long)(new_account)); \
                                                 ^
include/xenomai/cobalt/kernel/stat.h:139:2: note: in expansion of macro ‘xnstat_exectime_set_current’
  xnstat_exectime_set_current(sched, new_account); \
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/xenomai/intr.c:147:9: note: in expansion of macro ‘xnstat_exectime_switch’
  prev = xnstat_exectime_switch(sched, &statp->account);
         ^~~~~~~~~~~~~~~~~~~~~~
In file included from ./include/linux/atomic.h:76:0,
                 from ./include/asm-generic/bitops/lock.h:5,
                 from ./arch/arm/include/asm/bitops.h:243,
                 from ./include/linux/bitops.h:26,
                 from ./include/linux/kernel.h:12,
                 from ./include/asm-generic/bug.h:19,
                 from ./arch/arm/include/asm/bug.h:60,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/thread_info.h:12,
                 from ./include/asm-generic/current.h:5,
                 from ./arch/arm/include/generated/asm/current.h:1,
                 from ./include/linux/mutex.h:14,
                 from kernel/xenomai/intr.c:21:
./include/asm-generic/atomic-long.h:880:1: note: expected ‘atomic_long_t * {aka struct <anonymous> *}’ but argument is of type ‘xnstat_exectime_t ** {aka struct xnstat_exectime **}’
 atomic_long_xchg(atomic_long_t *v, long i)
 ^~~~~~~~~~~~~~~~
  CC      kernel/xenomai/registry.o
cc1: some warnings being treated as errors
scripts/Makefile.build:261: recipe for target 'kernel/xenomai/intr.o' failed
make[2]: *** [kernel/xenomai/intr.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      fs/iomap/apply.o
  CC      crypto/kpp.o
  CC      fs/fat/inode.o
  CC      fs/iomap/buffered-io.o
scripts/Makefile.build:496: recipe for target 'kernel/xenomai' failed
make[1]: *** [kernel/xenomai] Error 2
Makefile:1732: recipe for target 'kernel' failed

Is this a known issue ?

Best regards,

Thomas Petazzoni
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com