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/*
* BSD process related system call helpers
*
* Copyright (c) 2013-14 Stacey D. Son
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include <sys/param.h>
#include <sys/types.h>
#include <sys/cpuset.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include "qemu.h"
#include "qemu-bsd.h"
#include "signal-common.h"
#include "bsd-proc.h"
/*
* resource/rusage conversion
*/
int target_to_host_resource(int code)
{
return code;
}
rlim_t target_to_host_rlim(abi_llong target_rlim)
{
return tswap64(target_rlim);
}
abi_llong host_to_target_rlim(rlim_t rlim)
{
return tswap64(rlim);
}
void h2g_rusage(const struct rusage *rusage,
struct target_freebsd_rusage *target_rusage)
{
__put_user(rusage->ru_utime.tv_sec, &target_rusage->ru_utime.tv_sec);
__put_user(rusage->ru_utime.tv_usec, &target_rusage->ru_utime.tv_usec);
__put_user(rusage->ru_stime.tv_sec, &target_rusage->ru_stime.tv_sec);
__put_user(rusage->ru_stime.tv_usec, &target_rusage->ru_stime.tv_usec);
__put_user(rusage->ru_maxrss, &target_rusage->ru_maxrss);
__put_user(rusage->ru_idrss, &target_rusage->ru_idrss);
__put_user(rusage->ru_idrss, &target_rusage->ru_idrss);
__put_user(rusage->ru_isrss, &target_rusage->ru_isrss);
__put_user(rusage->ru_minflt, &target_rusage->ru_minflt);
__put_user(rusage->ru_majflt, &target_rusage->ru_majflt);
__put_user(rusage->ru_nswap, &target_rusage->ru_nswap);
__put_user(rusage->ru_inblock, &target_rusage->ru_inblock);
__put_user(rusage->ru_oublock, &target_rusage->ru_oublock);
__put_user(rusage->ru_msgsnd, &target_rusage->ru_msgsnd);
__put_user(rusage->ru_msgrcv, &target_rusage->ru_msgrcv);
__put_user(rusage->ru_nsignals, &target_rusage->ru_nsignals);
__put_user(rusage->ru_nvcsw, &target_rusage->ru_nvcsw);
__put_user(rusage->ru_nivcsw, &target_rusage->ru_nivcsw);
}
abi_long host_to_target_rusage(abi_ulong target_addr,
const struct rusage *rusage)
{
struct target_freebsd_rusage *target_rusage;
if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) {
return -TARGET_EFAULT;
}
h2g_rusage(rusage, target_rusage);
unlock_user_struct(target_rusage, target_addr, 1);
return 0;
}
abi_long host_to_target_wrusage(abi_ulong target_addr,
const struct __wrusage *wrusage)
{
struct target_freebsd__wrusage *target_wrusage;
if (!lock_user_struct(VERIFY_WRITE, target_wrusage, target_addr, 0)) {
return -TARGET_EFAULT;
}
h2g_rusage(&wrusage->wru_self, &target_wrusage->wru_self);
h2g_rusage(&wrusage->wru_children, &target_wrusage->wru_children);
unlock_user_struct(target_wrusage, target_addr, 1);
return 0;
}
/*
* wait status conversion.
*
* Map host to target signal numbers for the wait family of syscalls.
* Assume all other status bits are the same.
*/
int host_to_target_waitstatus(int status)
{
if (WIFSIGNALED(status)) {
return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
}
if (WIFSTOPPED(status)) {
return (host_to_target_signal(WSTOPSIG(status)) << 8) | (status & 0xff);
}
return status;
}
int bsd_get_ncpu(void)
{
int ncpu = -1;
cpuset_t mask;
CPU_ZERO(&mask);
if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask),
&mask) == 0) {
ncpu = CPU_COUNT(&mask);
}
if (ncpu == -1) {
ncpu = sysconf(_SC_NPROCESSORS_ONLN);
}
if (ncpu == -1) {
gemu_log("XXX Missing bsd_get_ncpu() implementation\n");
ncpu = 1;
}
return ncpu;
}
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