add lstat&sysinfo....syscall. (#7555)
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geniusgogo
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0315c0dee7
@ -76,6 +76,8 @@
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#include "lwp_ipc_internal.h"
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#include <sched.h>
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#include <sys/sysinfo.h>
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#ifndef GRND_NONBLOCK
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#define GRND_NONBLOCK 0x0001
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#endif /* GRND_NONBLOCK */
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@ -2621,6 +2623,54 @@ sysret_t sys_stat(const char *file, struct stat *buf)
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return ret;
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}
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sysret_t sys_lstat(const char *file, struct stat *buf)
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{
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int ret = 0;
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int err;
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size_t len;
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size_t copy_len;
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char *copy_path;
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struct stat statbuff = {0};
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if (!lwp_user_accessable((void *)buf, sizeof(struct stat)))
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{
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return -EFAULT;
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}
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len = lwp_user_strlen(file, &err);
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if (err)
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{
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return -EFAULT;
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}
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copy_path = (char*)rt_malloc(len + 1);
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if (!copy_path)
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{
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return -ENOMEM;
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}
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copy_len = lwp_get_from_user(copy_path, (void*)file, len);
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if (copy_len == 0)
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{
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rt_free(copy_path);
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return -EFAULT;
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}
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copy_path[copy_len] = '\0';
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#ifdef RT_USING_DFS_V2
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ret = _SYS_WRAP(dfs_file_lstat(copy_path, &statbuff));
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#else
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ret = _SYS_WRAP(stat(copy_path, &statbuff));
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#endif
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rt_free(copy_path);
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if (ret == 0)
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{
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lwp_put_to_user(buf, &statbuff, sizeof statbuff);
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}
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return ret;
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}
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sysret_t sys_notimpl(void)
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{
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return -ENOSYS;
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@ -4292,6 +4342,99 @@ sysret_t sys_setaffinity(pid_t pid, size_t size, void *set)
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return -1;
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}
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sysret_t sys_getaffinity(pid_t pid, size_t size, void *set)
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{
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#ifdef ARCH_MM_MMU
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cpu_set_t mask;
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struct rt_lwp *lwp;
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if (size <= 0 || size > sizeof(cpu_set_t))
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{
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return -EINVAL;
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}
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if (!lwp_user_accessable(set, size))
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{
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return -EFAULT;
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}
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if (pid == 0) lwp = lwp_self();
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else lwp = lwp_from_pid(pid);
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if (!lwp)
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{
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return -ESRCH;
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}
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#ifdef RT_USING_SMP
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if (lwp->bind_cpu == RT_CPUS_NR) /* not bind */
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{
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CPU_ZERO_S(size, &mask);
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}
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else /* set bind cpu */
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{
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/* TODO: only single-core bindings are now supported of rt-smart */
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CPU_SET_S(lwp->bind_cpu, size, &mask);
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}
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#else
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CPU_SET_S(0, size, &mask);
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#endif
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if (lwp_put_to_user(set, &mask, size) != size)
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{
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return -1;
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}
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return 0;
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#else
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return -1;
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#endif
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}
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sysret_t sys_sysinfo(void *info)
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{
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#ifdef ARCH_MM_MMU
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struct sysinfo kinfo = {0};
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rt_size_t total_pages = 0, free_pages = 0;
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if (!lwp_user_accessable(info, sizeof(struct sysinfo)))
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{
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return -EFAULT;
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}
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kinfo.uptime = rt_tick_get_millisecond() / 1000;
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/* TODO: 1, 5, and 15 minute load averages */
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kinfo.loads[0] = kinfo.loads[1] = kinfo.loads[2] = rt_object_get_length(RT_Object_Class_Thread);
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rt_page_get_info(&total_pages, &free_pages);
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kinfo.totalram = total_pages;
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kinfo.freeram = free_pages;
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/* TODO: implementation procfs, here is counter the lwp number */
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struct lwp_avl_struct *pids = lwp_get_pid_ary();
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for (int index = 0; index < RT_LWP_MAX_NR; index++)
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{
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struct rt_lwp *lwp = (struct rt_lwp *)pids[index].data;
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if (lwp)
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{
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kinfo.procs++;
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}
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}
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rt_page_high_get_info(&total_pages, &free_pages);
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kinfo.totalhigh = total_pages;
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kinfo.freehigh = free_pages;
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kinfo.mem_unit = ARCH_PAGE_SIZE;
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if (lwp_put_to_user(info, &kinfo, sizeof(struct sysinfo)) != sizeof(struct sysinfo))
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{
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return -EFAULT;
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}
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return 0;
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#else
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return -1;
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#endif
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}
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sysret_t sys_sched_setparam(pid_t pid, void *param)
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{
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struct sched_param *sched_param = (struct sched_param *)param;
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@ -4901,6 +5044,60 @@ sysret_t sys_umount2(char *__special_file, int __flags)
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return ret;
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}
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sysret_t sys_link(const char *existing, const char *new)
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{
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int ret = -1;
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#ifdef ARCH_MM_MMU
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int err;
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lwp_user_strlen(existing, &err);
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if (err)
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{
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return -EFAULT;
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}
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lwp_user_strlen(new, &err);
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if (err)
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{
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return -EFAULT;
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}
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#endif
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#ifdef RT_USING_DFS_V2
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ret = dfs_file_link(existing, new);
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#else
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SET_ERRNO(EFAULT);
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#endif
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return (ret < 0 ? GET_ERRNO() : ret);
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}
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sysret_t sys_symlink(const char *existing, const char *new)
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{
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int ret = -1;
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#ifdef ARCH_MM_MMU
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int err;
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lwp_user_strlen(existing, &err);
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if (err)
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{
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return -EFAULT;
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}
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lwp_user_strlen(new, &err);
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if (err)
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{
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return -EFAULT;
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}
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#endif
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#ifdef RT_USING_DFS_V2
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ret = dfs_file_symlink(existing, new);
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#else
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SET_ERRNO(EFAULT);
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#endif
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return (ret < 0 ? GET_ERRNO() : ret);
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}
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const static struct rt_syscall_def func_table[] =
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{
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SYSCALL_SIGN(sys_exit), /* 01 */
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@ -5110,7 +5307,7 @@ const static struct rt_syscall_def func_table[] =
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SYSCALL_SIGN(sys_mq_notify),
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SYSCALL_SIGN(sys_mq_getsetattr),
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SYSCALL_SIGN(sys_mq_close),
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SYSCALL_SIGN(sys_stat), //TODO should be replaced by sys_lstat if symbolic link are implemented
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SYSCALL_SIGN(sys_lstat),
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SYSCALL_SIGN(sys_uname), /* 170 */
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SYSCALL_SIGN(sys_statfs),
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SYSCALL_SIGN(sys_statfs64),
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@ -5119,6 +5316,10 @@ const static struct rt_syscall_def func_table[] =
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SYSCALL_SIGN(sys_openat), /* 175 */
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SYSCALL_SIGN(sys_mount),
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SYSCALL_SIGN(sys_umount2),
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SYSCALL_SIGN(sys_link),
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SYSCALL_SIGN(sys_symlink),
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SYSCALL_SIGN(sys_getaffinity), /* 180 */
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SYSCALL_SIGN(sys_sysinfo),
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};
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const void *lwp_get_sys_api(rt_uint32_t number)
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@ -46,6 +46,7 @@ static struct rt_page *page_list_high[RT_PAGE_MAX_ORDER];
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#define page_start ((rt_page_t)rt_mpr_start)
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static rt_size_t page_nr;
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static rt_size_t _high_pages_nr;
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static rt_size_t early_offset;
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static const char *get_name(rt_varea_t varea)
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@ -672,6 +673,28 @@ void rt_page_get_info(rt_size_t *total_nr, rt_size_t *free_nr)
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*free_nr = total_free;
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}
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void rt_page_high_get_info(rt_size_t *total_nr, rt_size_t *free_nr)
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{
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int i;
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rt_size_t total_free = 0;
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rt_base_t level;
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level = rt_hw_interrupt_disable();
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for (i = 0; i < RT_PAGE_MAX_ORDER; i++)
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{
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struct rt_page *p = page_list_high[i];
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while (p)
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{
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total_free += (1UL << i);
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p = p->next;
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}
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}
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rt_hw_interrupt_enable(level);
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*total_nr = _high_pages_nr;
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*free_nr = total_free;
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}
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static void _install_page(rt_page_t mpr_head, rt_region_t region, void *insert_handler)
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{
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void (*insert)(rt_page_t *page_list, rt_page_t page, int size_bits) = insert_handler;
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@ -723,6 +746,10 @@ static void _install_page(rt_page_t mpr_head, rt_region_t region, void *insert_h
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/* insert to list */
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rt_page_t *page_list = _get_page_list((void *)region.start);
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if (page_list == page_list_high)
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{
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_high_pages_nr += 1 << (size_bits - ARCH_PAGE_SHIFT);
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}
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insert(page_list, (rt_page_t)((char *)p - early_offset), size_bits - ARCH_PAGE_SHIFT);
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region.start += (1UL << size_bits);
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}
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@ -88,6 +88,8 @@ rt_size_t rt_page_bits(rt_size_t size);
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void rt_page_get_info(rt_size_t *total_nr, rt_size_t *free_nr);
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void rt_page_high_get_info(rt_size_t *total_nr, rt_size_t *free_nr);
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void *rt_page_page2addr(struct rt_page *p);
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struct rt_page *rt_page_addr2page(void *addr);
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