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linux-user: Add getcpu() support

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Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180112081435.21299-1-samuel.thibault@ens-lyon.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Samuel Thibault 2018-01-12 09:14:35 +01:00 committed by Laurent Vivier
parent 444cd5c3ae
commit b827c3ed30
1 changed files with 19 additions and 0 deletions
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19
linux-user/syscall.c
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@ -296,6 +296,8 @@ _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);
#define __NR_sys_getcpu __NR_getcpu
_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
void *, arg);
_syscall2(int, capget, struct __user_cap_header_struct *, header,
@ -10491,6 +10493,23 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
}
break;
case TARGET_NR_getcpu:
{
unsigned cpu, node;
ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
arg2 ? &node : NULL,
NULL));
if (is_error(ret)) {
goto fail;
}
if (arg1 && put_user_u32(cpu, arg1)) {
goto efault;
}
if (arg2 && put_user_u32(node, arg2)) {
goto efault;
}
}
break;
case TARGET_NR_sched_setparam:
{
struct sched_param *target_schp;