Le 17/02/2018 à 03:02, Mike Frysinger a écrit : > Not all arches implement this, and the kernel doesn't require them to. > Add ifdef logic to disable it when not available. > > Signed-off-by: Mike Frysinger <vap...@gentoo.org> > --- > linux-user/syscall.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/linux-user/syscall.c b/linux-user/syscall.c > index 799c8e2800ea..a9904fac791f 100644 > --- a/linux-user/syscall.c > +++ b/linux-user/syscall.c > @@ -290,8 +290,10 @@ _syscall3(int, sys_sched_getaffinity, pid_t, pid, > unsigned int, len, > #define __NR_sys_sched_setaffinity __NR_sched_setaffinity > _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len, > unsigned long *, user_mask_ptr); > +#ifdef TARGET_NR_getcpu > #define __NR_sys_getcpu __NR_getcpu > _syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, > tcache); > +#endif
I didn't find any arch that doesn't have it in linux-user/*/syscall_nr.h Which arches are you speaking about? As it can be also undefined for the host arch, you should use: #if defined(TARGET_NR_getcpu) && defined(__NR_getcpu) Thanks, Laurent