2 * process related system call shims and definitions
4 * Copyright (c) 2013-2014 Stacey D. Son
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 #include <sys/resource.h>
26 #include "gdbstub/syscalls.h"
27 #include "qemu/plugin.h"
29 extern int _getlogin(char*, int);
30 int bsd_get_ncpu(void);
33 static inline abi_long do_bsd_exit(void *cpu_env, abi_long arg1)
39 qemu_plugin_user_exit();
46 static inline abi_long do_bsd_getgroups(abi_long gidsetsize, abi_long arg2)
49 uint32_t *target_grouplist;
50 g_autofree gid_t *grouplist;
53 grouplist = g_try_new(gid_t, gidsetsize);
54 ret = get_errno(getgroups(gidsetsize, grouplist));
55 if (gidsetsize != 0) {
57 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
58 if (!target_grouplist) {
59 return -TARGET_EFAULT;
61 for (i = 0; i < ret; i++) {
62 target_grouplist[i] = tswap32(grouplist[i]);
64 unlock_user(target_grouplist, arg2, gidsetsize * 2);
71 static inline abi_long do_bsd_setgroups(abi_long gidsetsize, abi_long arg2)
73 uint32_t *target_grouplist;
74 g_autofree gid_t *grouplist;
77 grouplist = g_try_new(gid_t, gidsetsize);
78 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
79 if (!target_grouplist) {
80 return -TARGET_EFAULT;
82 for (i = 0; i < gidsetsize; i++) {
83 grouplist[i] = tswap32(target_grouplist[i]);
85 unlock_user(target_grouplist, arg2, 0);
86 return get_errno(setgroups(gidsetsize, grouplist));
90 static inline abi_long do_bsd_umask(abi_long arg1)
92 return get_errno(umask(arg1));
96 static inline abi_long do_bsd_setlogin(abi_long arg1)
101 p = lock_user_string(arg1);
103 return -TARGET_EFAULT;
105 ret = get_errno(setlogin(p));
106 unlock_user(p, arg1, 0);
112 static inline abi_long do_bsd_getlogin(abi_long arg1, abi_long arg2)
117 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
119 return -TARGET_EFAULT;
121 ret = get_errno(_getlogin(p, arg2));
122 unlock_user(p, arg1, arg2);
128 static inline abi_long do_bsd_getrusage(abi_long who, abi_ulong target_addr)
131 struct rusage rusage;
133 ret = get_errno(getrusage(who, &rusage));
134 if (!is_error(ret)) {
135 host_to_target_rusage(target_addr, &rusage);
141 static inline abi_long do_bsd_getrlimit(abi_long arg1, abi_ulong arg2)
144 int resource = target_to_host_resource(arg1);
145 struct target_rlimit *target_rlim;
150 rlim.rlim_cur = target_dflssiz;
151 rlim.rlim_max = target_maxssiz;
156 rlim.rlim_cur = target_dfldsiz;
157 rlim.rlim_max = target_maxdsiz;
162 ret = get_errno(getrlimit(resource, &rlim));
165 if (!is_error(ret)) {
166 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) {
167 return -TARGET_EFAULT;
169 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
170 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
171 unlock_user_struct(target_rlim, arg2, 1);
177 static inline abi_long do_bsd_setrlimit(abi_long arg1, abi_ulong arg2)
180 int resource = target_to_host_resource(arg1);
181 struct target_rlimit *target_rlim;
184 if (RLIMIT_STACK == resource) {
185 /* XXX We should, maybe, allow the stack size to shrink */
188 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) {
189 return -TARGET_EFAULT;
191 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
192 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
193 unlock_user_struct(target_rlim, arg2, 0);
194 ret = get_errno(setrlimit(resource, &rlim));
200 static inline abi_long do_bsd_getpid(void)
202 return get_errno(getpid());
206 static inline abi_long do_bsd_getppid(void)
208 return get_errno(getppid());
212 static inline abi_long do_bsd_getuid(void)
214 return get_errno(getuid());
218 static inline abi_long do_bsd_geteuid(void)
220 return get_errno(geteuid());
224 static inline abi_long do_bsd_getgid(void)
226 return get_errno(getgid());
230 static inline abi_long do_bsd_getegid(void)
232 return get_errno(getegid());
236 static inline abi_long do_bsd_setuid(abi_long arg1)
238 return get_errno(setuid(arg1));
242 static inline abi_long do_bsd_seteuid(abi_long arg1)
244 return get_errno(seteuid(arg1));
248 static inline abi_long do_bsd_setgid(abi_long arg1)
250 return get_errno(setgid(arg1));
254 static inline abi_long do_bsd_setegid(abi_long arg1)
256 return get_errno(setegid(arg1));
260 static inline abi_long do_bsd_getpgid(pid_t pid)
262 return get_errno(getpgid(pid));
266 static inline abi_long do_bsd_setpgid(int pid, int pgrp)
268 return get_errno(setpgid(pid, pgrp));
272 static inline abi_long do_bsd_getpgrp(void)
274 return get_errno(getpgrp());
278 static inline abi_long do_bsd_setreuid(abi_long arg1, abi_long arg2)
280 return get_errno(setreuid(arg1, arg2));
284 static inline abi_long do_bsd_setregid(abi_long arg1, abi_long arg2)
286 return get_errno(setregid(arg1, arg2));
289 #endif /* !BSD_PROC_H_ */