Merge tag 'pull-request-2023-11-16' of https://gitlab.com/thuth/qemu into staging

[mirror_qemu.git] / bsd-user / bsd-mem.c

diff --git a/bsd-user/bsd-mem.c b/bsd-user/bsd-mem.c
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..2ab1334b7003ea45cf4deb2fa2561a3038568107 100644 (file)
--- a/bsd-user/bsd-mem.c
+++ b/bsd-user/bsd-mem.c
@@ -0,0 +1,104 @@
+/*
+ *  memory management system conversion routines
+ *
+ *  Copyright (c) 2013 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 "qemu.h"
+#include "qemu-bsd.h"
+
+struct bsd_shm_regions bsd_shm_regions[N_BSD_SHM_REGIONS];
+
+abi_ulong target_brk;
+abi_ulong initial_target_brk;
+
+void target_set_brk(abi_ulong new_brk)
+{
+    target_brk = TARGET_PAGE_ALIGN(new_brk);
+    initial_target_brk = target_brk;
+}
+
+void target_to_host_ipc_perm__locked(struct ipc_perm *host_ip,
+                                     struct target_ipc_perm *target_ip)
+{
+    __get_user(host_ip->cuid, &target_ip->cuid);
+    __get_user(host_ip->cgid, &target_ip->cgid);
+    __get_user(host_ip->uid,  &target_ip->uid);
+    __get_user(host_ip->gid,  &target_ip->gid);
+    __get_user(host_ip->mode, &target_ip->mode);
+    __get_user(host_ip->seq,  &target_ip->seq);
+    __get_user(host_ip->key,  &target_ip->key);
+}
+
+abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
+                                 abi_ulong target_addr)
+{
+    struct target_shmid_ds *target_sd;
+
+    if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) {
+        return -TARGET_EFAULT;
+    }
+
+    target_to_host_ipc_perm__locked(&(host_sd->shm_perm),
+                                    &(target_sd->shm_perm));
+
+    __get_user(host_sd->shm_segsz,  &target_sd->shm_segsz);
+    __get_user(host_sd->shm_lpid,   &target_sd->shm_lpid);
+    __get_user(host_sd->shm_cpid,   &target_sd->shm_cpid);
+    __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
+    __get_user(host_sd->shm_atime,  &target_sd->shm_atime);
+    __get_user(host_sd->shm_dtime,  &target_sd->shm_dtime);
+    __get_user(host_sd->shm_ctime,  &target_sd->shm_ctime);
+    unlock_user_struct(target_sd, target_addr, 0);
+
+    return 0;
+}
+
+void host_to_target_ipc_perm__locked(struct target_ipc_perm *target_ip,
+                                     struct ipc_perm *host_ip)
+{
+    __put_user(host_ip->cuid, &target_ip->cuid);
+    __put_user(host_ip->cgid, &target_ip->cgid);
+    __put_user(host_ip->uid,  &target_ip->uid);
+    __put_user(host_ip->gid,  &target_ip->gid);
+    __put_user(host_ip->mode, &target_ip->mode);
+    __put_user(host_ip->seq,  &target_ip->seq);
+    __put_user(host_ip->key,  &target_ip->key);
+}
+
+abi_long host_to_target_shmid_ds(abi_ulong target_addr,
+                                 struct shmid_ds *host_sd)
+{
+    struct target_shmid_ds *target_sd;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) {
+        return -TARGET_EFAULT;
+    }
+
+    host_to_target_ipc_perm__locked(&(target_sd->shm_perm),
+                                    &(host_sd->shm_perm));
+
+    __put_user(host_sd->shm_segsz,  &target_sd->shm_segsz);
+    __put_user(host_sd->shm_lpid,   &target_sd->shm_lpid);
+    __put_user(host_sd->shm_cpid,   &target_sd->shm_cpid);
+    __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
+    __put_user(host_sd->shm_atime,  &target_sd->shm_atime);
+    __put_user(host_sd->shm_dtime,  &target_sd->shm_dtime);
+    __put_user(host_sd->shm_ctime,  &target_sd->shm_ctime);
+    unlock_user_struct(target_sd, target_addr, 1);
+
+    return 0;
+}