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![Kyle Evans](/assets/img/avatar_default.png)
Signed-off-by: Kyle Evans <kevans@FreeBSD.org> Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20230925182425.3163-11-kariem.taha2.7@gmail.com>
146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/*
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* BSD process related system call helpers
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*
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* Copyright (c) 2013-14 Stacey D. Son
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/cpuset.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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#include "qemu.h"
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#include "qemu-bsd.h"
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#include "signal-common.h"
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#include "bsd-proc.h"
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/*
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* resource/rusage conversion
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*/
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int target_to_host_resource(int code)
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{
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return code;
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}
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rlim_t target_to_host_rlim(abi_llong target_rlim)
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{
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return tswap64(target_rlim);
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}
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abi_llong host_to_target_rlim(rlim_t rlim)
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{
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return tswap64(rlim);
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}
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void h2g_rusage(const struct rusage *rusage,
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struct target_freebsd_rusage *target_rusage)
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{
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__put_user(rusage->ru_utime.tv_sec, &target_rusage->ru_utime.tv_sec);
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__put_user(rusage->ru_utime.tv_usec, &target_rusage->ru_utime.tv_usec);
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__put_user(rusage->ru_stime.tv_sec, &target_rusage->ru_stime.tv_sec);
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__put_user(rusage->ru_stime.tv_usec, &target_rusage->ru_stime.tv_usec);
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__put_user(rusage->ru_maxrss, &target_rusage->ru_maxrss);
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__put_user(rusage->ru_idrss, &target_rusage->ru_idrss);
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__put_user(rusage->ru_idrss, &target_rusage->ru_idrss);
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__put_user(rusage->ru_isrss, &target_rusage->ru_isrss);
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__put_user(rusage->ru_minflt, &target_rusage->ru_minflt);
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__put_user(rusage->ru_majflt, &target_rusage->ru_majflt);
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__put_user(rusage->ru_nswap, &target_rusage->ru_nswap);
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__put_user(rusage->ru_inblock, &target_rusage->ru_inblock);
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__put_user(rusage->ru_oublock, &target_rusage->ru_oublock);
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__put_user(rusage->ru_msgsnd, &target_rusage->ru_msgsnd);
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__put_user(rusage->ru_msgrcv, &target_rusage->ru_msgrcv);
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__put_user(rusage->ru_nsignals, &target_rusage->ru_nsignals);
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__put_user(rusage->ru_nvcsw, &target_rusage->ru_nvcsw);
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__put_user(rusage->ru_nivcsw, &target_rusage->ru_nivcsw);
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}
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abi_long host_to_target_rusage(abi_ulong target_addr,
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const struct rusage *rusage)
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{
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struct target_freebsd_rusage *target_rusage;
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if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) {
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return -TARGET_EFAULT;
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}
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h2g_rusage(rusage, target_rusage);
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unlock_user_struct(target_rusage, target_addr, 1);
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return 0;
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}
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abi_long host_to_target_wrusage(abi_ulong target_addr,
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const struct __wrusage *wrusage)
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{
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struct target_freebsd__wrusage *target_wrusage;
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if (!lock_user_struct(VERIFY_WRITE, target_wrusage, target_addr, 0)) {
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return -TARGET_EFAULT;
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}
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h2g_rusage(&wrusage->wru_self, &target_wrusage->wru_self);
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h2g_rusage(&wrusage->wru_children, &target_wrusage->wru_children);
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unlock_user_struct(target_wrusage, target_addr, 1);
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return 0;
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}
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/*
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* wait status conversion.
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*
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* Map host to target signal numbers for the wait family of syscalls.
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* Assume all other status bits are the same.
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*/
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int host_to_target_waitstatus(int status)
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{
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if (WIFSIGNALED(status)) {
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return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
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}
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if (WIFSTOPPED(status)) {
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return (host_to_target_signal(WSTOPSIG(status)) << 8) | (status & 0xff);
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}
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return status;
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}
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int bsd_get_ncpu(void)
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{
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int ncpu = -1;
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cpuset_t mask;
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CPU_ZERO(&mask);
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if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask),
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&mask) == 0) {
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ncpu = CPU_COUNT(&mask);
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}
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if (ncpu == -1) {
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ncpu = sysconf(_SC_NPROCESSORS_ONLN);
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}
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if (ncpu == -1) {
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gemu_log("XXX Missing bsd_get_ncpu() implementation\n");
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ncpu = 1;
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}
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return ncpu;
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}
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