#include "target_arch_cpu.h"
+pid_t safe_wait4(pid_t wpid, int *status, int options, struct rusage *rusage);
+pid_t safe_wait6(idtype_t idtype, id_t id, int *status, int options,
+ struct __wrusage *wrusage, siginfo_t *infop);
+
+extern int __setugid(int flag);
+
/* execve(2) */
static inline abi_long do_freebsd_execve(abi_ulong path_or_fd, abi_ulong argp,
abi_ulong envp)
return freebsd_exec_common(path_or_fd, argp, envp, 1);
}
+/* wait4(2) */
+static inline abi_long do_freebsd_wait4(abi_long arg1, abi_ulong target_status,
+ abi_long arg3, abi_ulong target_rusage)
+{
+ abi_long ret;
+ int status;
+ struct rusage rusage, *rusage_ptr = NULL;
+
+ if (target_rusage) {
+ rusage_ptr = &rusage;
+ }
+ ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
+
+ if (ret < 0) {
+ return ret;
+ }
+ if (target_status != 0) {
+ status = host_to_target_waitstatus(status);
+ if (put_user_s32(status, target_status) != 0) {
+ return -TARGET_EFAULT;
+ }
+ }
+ if (target_rusage != 0) {
+ host_to_target_rusage(target_rusage, &rusage);
+ }
+ return ret;
+}
+
+/* wait6(2) */
+static inline abi_long do_freebsd_wait6(void *cpu_env, abi_long idtype,
+ abi_long id1, abi_long id2,
+ abi_ulong target_status, abi_long options, abi_ulong target_wrusage,
+ abi_ulong target_infop, abi_ulong pad1)
+{
+ abi_long ret;
+ int status;
+ struct __wrusage wrusage, *wrusage_ptr = NULL;
+ siginfo_t info;
+ void *p;
+
+ if (regpairs_aligned(cpu_env) != 0) {
+ /* printf("shifting args\n"); */
+ /* 64-bit id is aligned, so shift all the arguments over by one */
+ id1 = id2;
+ id2 = target_status;
+ target_status = options;
+ options = target_wrusage;
+ target_wrusage = target_infop;
+ target_infop = pad1;
+ }
+
+ if (target_wrusage) {
+ wrusage_ptr = &wrusage;
+ }
+ ret = get_errno(safe_wait6(idtype, target_arg64(id1, id2),
+ &status, options, wrusage_ptr, &info));
+
+ if (ret < 0) {
+ return ret;
+ }
+ if (target_status != 0) {
+ status = host_to_target_waitstatus(status);
+ if (put_user_s32(status, target_status) != 0) {
+ return -TARGET_EFAULT;
+ }
+ }
+ if (target_wrusage != 0) {
+ host_to_target_wrusage(target_wrusage, &wrusage);
+ }
+ if (target_infop != 0) {
+ p = lock_user(VERIFY_WRITE, target_infop, sizeof(target_siginfo_t), 0);
+ if (p == NULL) {
+ return -TARGET_EFAULT;
+ }
+ host_to_target_siginfo(p, &info);
+ unlock_user(p, target_infop, sizeof(target_siginfo_t));
+ }
+ return ret;
+}
+
+/* setloginclass(2) */
+static inline abi_long do_freebsd_setloginclass(abi_ulong arg1)
+{
+ abi_long ret;
+ void *p;
+
+ p = lock_user_string(arg1);
+ if (p == NULL) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(setloginclass(p));
+ unlock_user(p, arg1, 0);
+
+ return ret;
+}
+
+/* getloginclass(2) */
+static inline abi_long do_freebsd_getloginclass(abi_ulong arg1, abi_ulong arg2)
+{
+ abi_long ret;
+ void *p;
+
+ p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
+ if (p == NULL) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(getloginclass(p, arg2));
+ unlock_user(p, arg1, arg2);
+
+ return ret;
+}
+
+/* pdgetpid(2) */
+static inline abi_long do_freebsd_pdgetpid(abi_long fd, abi_ulong target_pidp)
+{
+ abi_long ret;
+ pid_t pid;
+
+ ret = get_errno(pdgetpid(fd, &pid));
+ if (!is_error(ret)) {
+ if (put_user_u32(pid, target_pidp)) {
+ return -TARGET_EFAULT;
+ }
+ }
+ return ret;
+}
+
+/* undocumented __setugid */
+static inline abi_long do_freebsd___setugid(abi_long arg1)
+{
+ return -TARGET_ENOSYS;
+}
+
+/* fork(2) */
+static inline abi_long do_freebsd_fork(void *cpu_env)
+{
+ abi_long ret;
+ abi_ulong child_flag;
+
+ fork_start();
+ ret = fork();
+ if (ret == 0) {
+ /* child */
+ child_flag = 1;
+ target_cpu_clone_regs(cpu_env, 0);
+ } else {
+ /* parent */
+ child_flag = 0;
+ }
+
+ /*
+ * The fork system call sets a child flag in the second return
+ * value: 0 for parent process, 1 for child process.
+ */
+ set_second_rval(cpu_env, child_flag);
+
+ fork_end(child_flag);
+
+ return ret;
+}
+
+/* vfork(2) */
+static inline abi_long do_freebsd_vfork(void *cpu_env)
+{
+ return do_freebsd_fork(cpu_env);
+}
+
+/* rfork(2) */
+static inline abi_long do_freebsd_rfork(void *cpu_env, abi_long flags)
+{
+ abi_long ret;
+ abi_ulong child_flag;
+
+ /*
+ * XXX We need to handle RFMEM here, as well. Neither are safe to execute
+ * as-is on x86 hosts because they'll split memory but not the stack,
+ * wreaking havoc on host architectures that use the stack to store the
+ * return address as both threads try to pop it off. Rejecting RFSPAWN
+ * entirely for now is ok, the only consumer at the moment is posix_spawn
+ * and it will fall back to classic vfork(2) if we return EINVAL.
+ */
+ if ((flags & TARGET_RFSPAWN) != 0) {
+ return -TARGET_EINVAL;
+ }
+ fork_start();
+ ret = rfork(flags);
+ if (ret == 0) {
+ /* child */
+ child_flag = 1;
+ target_cpu_clone_regs(cpu_env, 0);
+ } else {
+ /* parent */
+ child_flag = 0;
+ }
+
+ /*
+ * The fork system call sets a child flag in the second return
+ * value: 0 for parent process, 1 for child process.
+ */
+ set_second_rval(cpu_env, child_flag);
+ fork_end(child_flag);
+
+ return ret;
+
+}
+
+/* pdfork(2) */
+static inline abi_long do_freebsd_pdfork(void *cpu_env, abi_ulong target_fdp,
+ abi_long flags)
+{
+ abi_long ret;
+ abi_ulong child_flag;
+ int fd;
+
+ fork_start();
+ ret = pdfork(&fd, flags);
+ if (ret == 0) {
+ /* child */
+ child_flag = 1;
+ target_cpu_clone_regs(cpu_env, 0);
+ } else {
+ /* parent */
+ child_flag = 0;
+ if (put_user_s32(fd, target_fdp)) {
+ return -TARGET_EFAULT;
+ }
+ }
+
+ /*
+ * The fork system call sets a child flag in the second return
+ * value: 0 for parent process, 1 for child process.
+ */
+ set_second_rval(cpu_env, child_flag);
+ fork_end(child_flag);
+
+ return ret;
+}
+
#endif /* BSD_USER_FREEBSD_OS_PROC_H */
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