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-rw-r--r--arch/xtensa/kernel/syscalls.c152
-rw-r--r--arch/xtensa/kernel/syscalls.h57
2 files changed, 30 insertions, 179 deletions
diff --git a/arch/xtensa/kernel/syscalls.c b/arch/xtensa/kernel/syscalls.c
index abc8ed6c7026..3540d8b119f3 100644
--- a/arch/xtensa/kernel/syscalls.c
+++ b/arch/xtensa/kernel/syscalls.c
@@ -46,8 +46,6 @@
extern void do_syscall_trace(void);
typedef int (*syscall_t)(void *a0,...);
-extern int (*do_syscalls)(struct pt_regs *regs, syscall_t fun,
- int narg);
extern syscall_t sys_call_table[];
extern unsigned char sys_narg_table[];
@@ -72,10 +70,8 @@ int sys_pipe(int __user *userfds)
/*
* Common code for old and new mmaps.
*/
-
-static inline long do_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
+long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
+ unsigned long flags, unsigned long fd, unsigned long pgoff)
{
int error = -EBADF;
struct file * file = NULL;
@@ -97,29 +93,6 @@ out:
return error;
}
-unsigned long old_mmap(unsigned long addr, size_t len, int prot,
- int flags, int fd, off_t offset)
-{
- return do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-}
-
-long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
- unsigned long flags, unsigned long fd, unsigned long pgoff)
-{
- return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-int sys_fork(struct pt_regs *regs)
-{
- return do_fork(SIGCHLD, regs->areg[1], regs, 0, NULL, NULL);
-}
-
-int sys_vfork(struct pt_regs *regs)
-{
- return do_fork(CLONE_VFORK|CLONE_VM|SIGCHLD, regs->areg[1],
- regs, 0, NULL, NULL);
-}
-
int sys_clone(struct pt_regs *regs)
{
unsigned long clone_flags;
@@ -162,30 +135,6 @@ int sys_uname(struct old_utsname * name)
return -EFAULT;
}
-int sys_olduname(struct oldold_utsname * name)
-{
- int error;
-
- if (!name)
- return -EFAULT;
- if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
- return -EFAULT;
-
- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
- error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
- error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
- error -= __put_user(0,name->release+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
- error -= __put_user(0,name->version+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
- error -= __put_user(0,name->machine+__OLD_UTS_LEN);
-
- return error ? -EFAULT : 0;
-}
-
-
/*
* Build the string table for the builtin "poor man's strace".
*/
@@ -319,100 +268,3 @@ void system_call (struct pt_regs *regs)
regs->areg[2] = res;
do_syscall_trace();
}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-
-int sys_ipc (uint call, int first, int second,
- int third, void __user *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
- ret = -ENOSYS;
-
- switch (call) {
- case SEMOP:
- ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
- second, NULL);
- break;
-
- case SEMTIMEDOP:
- ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
- second, (const struct timespec *) fifth);
- break;
-
- case SEMGET:
- ret = sys_semget (first, second, third);
- break;
-
- case SEMCTL: {
- union semun fourth;
-
- if (ptr && !get_user(fourth.__pad, (void *__user *) ptr))
- ret = sys_semctl (first, second, third, fourth);
- break;
- }
-
- case MSGSND:
- ret = sys_msgsnd (first, (struct msgbuf __user*) ptr,
- second, third);
- break;
-
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
-
- if (ptr && !copy_from_user(&tmp,
- (struct ipc_kludge *) ptr,
- sizeof (tmp)))
- ret = sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- break;
- }
-
- default:
- ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
- second, 0, third);
- break;
- }
- break;
-
- case MSGGET:
- ret = sys_msgget ((key_t) first, second);
- break;
-
- case MSGCTL:
- ret = sys_msgctl (first, second, (struct msqid_ds __user*) ptr);
- break;
-
- case SHMAT: {
- ulong raddr;
- ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-
- if (!ret)
- ret = put_user (raddr, (ulong __user *) third);
-
- break;
- }
-
- case SHMDT:
- ret = sys_shmdt ((char __user *)ptr);
- break;
-
- case SHMGET:
- ret = sys_shmget (first, second, third);
- break;
-
- case SHMCTL:
- ret = sys_shmctl (first, second, (struct shmid_ds __user*) ptr);
- break;
- }
- return ret;
-}
-
diff --git a/arch/xtensa/kernel/syscalls.h b/arch/xtensa/kernel/syscalls.h
index 5b3f75f50feb..07580696b602 100644
--- a/arch/xtensa/kernel/syscalls.h
+++ b/arch/xtensa/kernel/syscalls.h
@@ -25,20 +25,19 @@
*/
SYSCALL(0, 0) /* 00 */
-
SYSCALL(sys_exit, 1)
-SYSCALL(sys_fork, 0)
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_read, 3)
SYSCALL(sys_write, 3)
SYSCALL(sys_open, 3) /* 05 */
SYSCALL(sys_close, 1)
-SYSCALL(sys_waitpid, 3)
+SYSCALL(sys_ni_syscall, 3)
SYSCALL(sys_creat, 2)
SYSCALL(sys_link, 2)
SYSCALL(sys_unlink, 1) /* 10 */
SYSCALL(sys_execve, 0)
SYSCALL(sys_chdir, 1)
-SYSCALL(sys_time, 1)
+SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_mknod, 3)
SYSCALL(sys_chmod, 2) /* 15 */
SYSCALL(sys_lchown, 3)
@@ -47,19 +46,19 @@ SYSCALL(sys_stat, 2)
SYSCALL(sys_lseek, 3)
SYSCALL(sys_getpid, 0) /* 20 */
SYSCALL(sys_mount, 5)
-SYSCALL(sys_oldumount, 1)
+SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_setuid, 1)
SYSCALL(sys_getuid, 0)
-SYSCALL(sys_stime, 1) /* 25 */
+SYSCALL(sys_ni_syscall, 1) /* 25 */
SYSCALL(sys_ptrace, 4)
-SYSCALL(sys_alarm, 1)
+SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_fstat, 2)
-SYSCALL(sys_pause, 0)
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_utime, 2) /* 30 */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_access, 2)
-SYSCALL(sys_nice, 1)
+SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_ni_syscall, 0) /* 35 */
SYSCALL(sys_sync, 0)
SYSCALL(sys_kill, 2)
@@ -73,7 +72,7 @@ SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_brk, 1) /* 45 */
SYSCALL(sys_setgid, 1)
SYSCALL(sys_getgid, 0)
-SYSCALL(sys_ni_syscall, 0) /* was signal(2) */
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_geteuid, 0)
SYSCALL(sys_getegid, 0) /* 50 */
SYSCALL(sys_acct, 1)
@@ -84,21 +83,21 @@ SYSCALL(sys_fcntl, 3) /* 55 */
SYSCALL(sys_ni_syscall, 2)
SYSCALL(sys_setpgid, 2)
SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_olduname, 1)
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_umask, 1) /* 60 */
SYSCALL(sys_chroot, 1)
SYSCALL(sys_ustat, 2)
SYSCALL(sys_dup2, 2)
SYSCALL(sys_getppid, 0)
-SYSCALL(sys_getpgrp, 0) /* 65 */
+SYSCALL(sys_ni_syscall, 0) /* 65 */
SYSCALL(sys_setsid, 0)
SYSCALL(sys_sigaction, 3)
-SYSCALL(sys_sgetmask, 0)
-SYSCALL(sys_ssetmask, 1)
+SYSCALL(sys_ni_syscall, 0)
+SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_setreuid, 2) /* 70 */
SYSCALL(sys_setregid, 2)
SYSCALL(sys_sigsuspend, 0)
-SYSCALL(sys_sigpending, 1)
+SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_sethostname, 2)
SYSCALL(sys_setrlimit, 2) /* 75 */
SYSCALL(sys_getrlimit, 2)
@@ -107,15 +106,15 @@ SYSCALL(sys_gettimeofday, 2)
SYSCALL(sys_settimeofday, 2)
SYSCALL(sys_getgroups, 2) /* 80 */
SYSCALL(sys_setgroups, 2)
-SYSCALL(sys_ni_syscall, 0) /* old_select */
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_symlink, 2)
SYSCALL(sys_lstat, 2)
SYSCALL(sys_readlink, 3) /* 85 */
SYSCALL(sys_uselib, 1)
SYSCALL(sys_swapon, 2)
SYSCALL(sys_reboot, 3)
-SYSCALL(old_readdir, 3)
-SYSCALL(old_mmap, 6) /* 90 */
+SYSCALL(sys_ni_syscall, 3)
+SYSCALL(sys_ni_syscall, 6) /* 90 */
SYSCALL(sys_munmap, 2)
SYSCALL(sys_truncate, 2)
SYSCALL(sys_ftruncate, 2)
@@ -127,7 +126,7 @@ SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_statfs, 2)
SYSCALL(sys_fstatfs, 2) /* 100 */
SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_socketcall, 2)
+SYSCALL(sys_ni_syscall, 2)
SYSCALL(sys_syslog, 3)
SYSCALL(sys_setitimer, 3)
SYSCALL(sys_getitimer, 2) /* 105 */
@@ -137,32 +136,32 @@ SYSCALL(sys_newfstat, 2)
SYSCALL(sys_uname, 1)
SYSCALL(sys_ni_syscall, 0) /* 110 */
SYSCALL(sys_vhangup, 0)
-SYSCALL(sys_ni_syscall, 0) /* was sys_idle() */
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_wait4, 4)
SYSCALL(sys_swapoff, 1) /* 115 */
SYSCALL(sys_sysinfo, 1)
-SYSCALL(sys_ipc, 5) /* 6 really, but glibc uses only 5) */
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_fsync, 1)
SYSCALL(sys_sigreturn, 0)
SYSCALL(sys_clone, 0) /* 120 */
SYSCALL(sys_setdomainname, 2)
SYSCALL(sys_newuname, 1)
-SYSCALL(sys_ni_syscall, 0) /* sys_modify_ldt */
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_adjtimex, 1)
SYSCALL(sys_mprotect, 3) /* 125 */
-SYSCALL(sys_sigprocmask, 3)
-SYSCALL(sys_ni_syscall, 2) /* old sys_create_module */
+SYSCALL(sys_ni_syscall, 3)
+SYSCALL(sys_ni_syscall, 2)
SYSCALL(sys_init_module, 2)
SYSCALL(sys_delete_module, 1)
-SYSCALL(sys_ni_syscall, 1) /* old sys_get_kernel_sysm */ /* 130 */
+SYSCALL(sys_ni_syscall, 1) /* 130 */
SYSCALL(sys_quotactl, 0)
SYSCALL(sys_getpgid, 1)
SYSCALL(sys_fchdir, 1)
SYSCALL(sys_bdflush, 2)
SYSCALL(sys_sysfs, 3) /* 135 */
SYSCALL(sys_personality, 1)
-SYSCALL(sys_ni_syscall, 0) /* for afs_syscall */
+SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_setfsuid, 1)
SYSCALL(sys_setfsgid, 1)
SYSCALL(sys_llseek, 5) /* 140 */
@@ -212,7 +211,7 @@ SYSCALL(sys_socket, 3)
SYSCALL(sys_socketpair, 4)
SYSCALL(sys_setresuid, 3) /* 185 */
SYSCALL(sys_getresuid, 3)
-SYSCALL(sys_ni_syscall, 5) /* old sys_query_module */
+SYSCALL(sys_ni_syscall, 5)
SYSCALL(sys_poll, 3)
SYSCALL(sys_nfsservctl, 3)
SYSCALL(sys_setresgid, 3) /* 190 */
@@ -235,7 +234,7 @@ SYSCALL(sys_sigaltstack, 0)
SYSCALL(sys_sendfile, 4)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_mmap2, 6) /* 210 */
+SYSCALL(sys_mmap, 6) /* 210 */
SYSCALL(sys_truncate64, 2)
SYSCALL(sys_ftruncate64, 2)
SYSCALL(sys_stat64, 2)
@@ -245,4 +244,4 @@ SYSCALL(sys_pivot_root, 2)
SYSCALL(sys_mincore, 3)
SYSCALL(sys_madvise, 3)
SYSCALL(sys_getdents64, 3)
-SYSCALL(sys_vfork, 0) /* 220 */
+SYSCALL(sys_ni_syscall, 0) /* 220 */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.