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-rw-r--r--arch/powerpc/kernel/Makefile6
-rw-r--r--arch/powerpc/kernel/sys_ppc32.c1127
-rw-r--r--arch/powerpc/kernel/syscalls.c351
-rw-r--r--arch/powerpc/kernel/systbl.S6
4 files changed, 1484 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index ae97295f270..1ca740bc5b4 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -11,7 +11,7 @@ CFLAGS_btext.o += -fPIC
endif
obj-y := semaphore.o cputable.o ptrace.o
-obj-$(CONFIG_PPC64) += binfmt_elf32.o
+obj-$(CONFIG_PPC64) += binfmt_elf32.o sys_ppc32.o
obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
obj-$(CONFIG_POWER4) += idle_power4.o
obj-$(CONFIG_PPC_OF) += of_device.o
@@ -30,7 +30,7 @@ extra-$(CONFIG_PPC_FPU) += fpu.o
extra-y += vmlinux.lds
obj-y += process.o init_task.o \
- prom.o systbl.o traps.o
+ prom.o systbl.o traps.o syscalls.o
obj-$(CONFIG_PPC32) += entry_32.o setup_32.o misc_32.o
obj-$(CONFIG_PPC64) += setup_64.o misc_64.o
obj-$(CONFIG_PPC_OF) += prom_init.o
@@ -44,7 +44,7 @@ endif
else
# stuff used from here for ARCH=ppc or ARCH=ppc64
-obj-$(CONFIG_PPC64) += traps.o process.o init_task.o
+obj-$(CONFIG_PPC64) += traps.o process.o init_task.o syscalls.o
fpux-$(CONFIG_PPC32) += fpu.o
extra-$(CONFIG_PPC_FPU) += $(fpux-y)
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
new file mode 100644
index 00000000000..9babe055356
--- /dev/null
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -0,0 +1,1127 @@
+/*
+ * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls.
+ *
+ * Copyright (C) 2001 IBM
+ * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
+ *
+ * These routines maintain argument size conversion between 32bit and 64bit
+ * environment.
+ *
+ * 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.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/signal.h>
+#include <linux/resource.h>
+#include <linux/times.h>
+#include <linux/utsname.h>
+#include <linux/timex.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/poll.h>
+#include <linux/personality.h>
+#include <linux/stat.h>
+#include <linux/mman.h>
+#include <linux/in.h>
+#include <linux/syscalls.h>
+#include <linux/unistd.h>
+#include <linux/sysctl.h>
+#include <linux/binfmts.h>
+#include <linux/security.h>
+#include <linux/compat.h>
+#include <linux/ptrace.h>
+#include <linux/elf.h>
+
+#include <asm/ptrace.h>
+#include <asm/types.h>
+#include <asm/ipc.h>
+#include <asm/uaccess.h>
+#include <asm/unistd.h>
+#include <asm/semaphore.h>
+#include <asm/time.h>
+#include <asm/mmu_context.h>
+#include <asm/systemcfg.h>
+#include <asm/ppc-pci.h>
+
+/* readdir & getdents */
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
+#define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
+
+struct old_linux_dirent32 {
+ u32 d_ino;
+ u32 d_offset;
+ unsigned short d_namlen;
+ char d_name[1];
+};
+
+struct readdir_callback32 {
+ struct old_linux_dirent32 __user * dirent;
+ int count;
+};
+
+static int fillonedir(void * __buf, const char * name, int namlen,
+ off_t offset, ino_t ino, unsigned int d_type)
+{
+ struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
+ struct old_linux_dirent32 __user * dirent;
+
+ if (buf->count)
+ return -EINVAL;
+ buf->count++;
+ dirent = buf->dirent;
+ put_user(ino, &dirent->d_ino);
+ put_user(offset, &dirent->d_offset);
+ put_user(namlen, &dirent->d_namlen);
+ copy_to_user(dirent->d_name, name, namlen);
+ put_user(0, dirent->d_name + namlen);
+ return 0;
+}
+
+asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count)
+{
+ int error = -EBADF;
+ struct file * file;
+ struct readdir_callback32 buf;
+
+ file = fget(fd);
+ if (!file)
+ goto out;
+
+ buf.count = 0;
+ buf.dirent = dirent;
+
+ error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
+ if (error < 0)
+ goto out_putf;
+ error = buf.count;
+
+out_putf:
+ fput(file);
+out:
+ return error;
+}
+
+struct linux_dirent32 {
+ u32 d_ino;
+ u32 d_off;
+ unsigned short d_reclen;
+ char d_name[1];
+};
+
+struct getdents_callback32 {
+ struct linux_dirent32 __user * current_dir;
+ struct linux_dirent32 __user * previous;
+ int count;
+ int error;
+};
+
+static int filldir(void * __buf, const char * name, int namlen, off_t offset,
+ ino_t ino, unsigned int d_type)
+{
+ struct linux_dirent32 __user * dirent;
+ struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
+ int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
+
+ buf->error = -EINVAL; /* only used if we fail.. */
+ if (reclen > buf->count)
+ return -EINVAL;
+ dirent = buf->previous;
+ if (dirent) {
+ if (__put_user(offset, &dirent->d_off))
+ goto efault;
+ }
+ dirent = buf->current_dir;
+ if (__put_user(ino, &dirent->d_ino))
+ goto efault;
+ if (__put_user(reclen, &dirent->d_reclen))
+ goto efault;
+ if (copy_to_user(dirent->d_name, name, namlen))
+ goto efault;
+ if (__put_user(0, dirent->d_name + namlen))
+ goto efault;
+ if (__put_user(d_type, (char __user *) dirent + reclen - 1))
+ goto efault;
+ buf->previous = dirent;
+ dirent = (void __user *)dirent + reclen;
+ buf->current_dir = dirent;
+ buf->count -= reclen;
+ return 0;
+efault:
+ buf->error = -EFAULT;
+ return -EFAULT;
+}
+
+asmlinkage long sys32_getdents(unsigned int fd, struct linux_dirent32 __user *dirent,
+ unsigned int count)
+{
+ struct file * file;
+ struct linux_dirent32 __user * lastdirent;
+ struct getdents_callback32 buf;
+ int error;
+
+ error = -EFAULT;
+ if (!access_ok(VERIFY_WRITE, dirent, count))
+ goto out;
+
+ error = -EBADF;
+ file = fget(fd);
+ if (!file)
+ goto out;
+
+ buf.current_dir = dirent;
+ buf.previous = NULL;
+ buf.count = count;
+ buf.error = 0;
+
+ error = vfs_readdir(file, (filldir_t)filldir, &buf);
+ if (error < 0)
+ goto out_putf;
+ error = buf.error;
+ lastdirent = buf.previous;
+ if (lastdirent) {
+ if (put_user(file->f_pos, &lastdirent->d_off))
+ error = -EFAULT;
+ else
+ error = count - buf.count;
+ }
+
+out_putf:
+ fput(file);
+out:
+ return error;
+}
+
+asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
+ compat_ulong_t __user *outp, compat_ulong_t __user *exp,
+ compat_uptr_t tvp_x)
+{
+ /* sign extend n */
+ return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
+}
+
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
+{
+ long err;
+
+ if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
+ !new_valid_dev(stat->rdev))
+ return -EOVERFLOW;
+
+ err = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT;
+ err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
+ err |= __put_user(stat->ino, &statbuf->st_ino);
+ err |= __put_user(stat->mode, &statbuf->st_mode);
+ err |= __put_user(stat->nlink, &statbuf->st_nlink);
+ err |= __put_user(stat->uid, &statbuf->st_uid);
+ err |= __put_user(stat->gid, &statbuf->st_gid);
+ err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
+ err |= __put_user(stat->size, &statbuf->st_size);
+ err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime);
+ err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
+ err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
+ err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
+ err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
+ err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
+ err |= __put_user(stat->blksize, &statbuf->st_blksize);
+ err |= __put_user(stat->blocks, &statbuf->st_blocks);
+ err |= __put_user(0, &statbuf->__unused4[0]);
+ err |= __put_user(0, &statbuf->__unused4[1]);
+
+ return err;
+}
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sysfs(u32 option, u32 arg1, u32 arg2)
+{
+ return sys_sysfs((int)option, arg1, arg2);
+}
+
+/* Handle adjtimex compatibility. */
+struct timex32 {
+ u32 modes;
+ s32 offset, freq, maxerror, esterror;
+ s32 status, constant, precision, tolerance;
+ struct compat_timeval time;
+ s32 tick;
+ s32 ppsfreq, jitter, shift, stabil;
+ s32 jitcnt, calcnt, errcnt, stbcnt;
+ s32 :32; s32 :32; s32 :32; s32 :32;
+ s32 :32; s32 :32; s32 :32; s32 :32;
+ s32 :32; s32 :32; s32 :32; s32 :32;
+};
+
+extern int do_adjtimex(struct timex *);
+extern void ppc_adjtimex(void);
+
+asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
+{
+ struct timex txc;
+ int ret;
+
+ memset(&txc, 0, sizeof(struct timex));
+
+ if(get_user(txc.modes, &utp->modes) ||
+ __get_user(txc.offset, &utp->offset) ||
+ __get_user(txc.freq, &utp->freq) ||
+ __get_user(txc.maxerror, &utp->maxerror) ||
+ __get_user(txc.esterror, &utp->esterror) ||
+ __get_user(txc.status, &utp->status) ||
+ __get_user(txc.constant, &utp->constant) ||
+ __get_user(txc.precision, &utp->precision) ||
+ __get_user(txc.tolerance, &utp->tolerance) ||
+ __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+ __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+ __get_user(txc.tick, &utp->tick) ||
+ __get_user(txc.ppsfreq, &utp->ppsfreq) ||
+ __get_user(txc.jitter, &utp->jitter) ||
+ __get_user(txc.shift, &utp->shift) ||
+ __get_user(txc.stabil, &utp->stabil) ||
+ __get_user(txc.jitcnt, &utp->jitcnt) ||
+ __get_user(txc.calcnt, &utp->calcnt) ||
+ __get_user(txc.errcnt, &utp->errcnt) ||
+ __get_user(txc.stbcnt, &utp->stbcnt))
+ return -EFAULT;
+
+ ret = do_adjtimex(&txc);
+
+ /* adjust the conversion of TB to time of day to track adjtimex */
+ ppc_adjtimex();
+
+ if(put_user(txc.modes, &utp->modes) ||
+ __put_user(txc.offset, &utp->offset) ||
+ __put_user(txc.freq, &utp->freq) ||
+ __put_user(txc.maxerror, &utp->maxerror) ||
+ __put_user(txc.esterror, &utp->esterror) ||
+ __put_user(txc.status, &utp->status) ||
+ __put_user(txc.constant, &utp->constant) ||
+ __put_user(txc.precision, &utp->precision) ||
+ __put_user(txc.tolerance, &utp->tolerance) ||
+ __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+ __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+ __put_user(txc.tick, &utp->tick) ||
+ __put_user(txc.ppsfreq, &utp->ppsfreq) ||
+ __put_user(txc.jitter, &utp->jitter) ||
+ __put_user(txc.shift, &utp->shift) ||
+ __put_user(txc.stabil, &utp->stabil) ||
+ __put_user(txc.jitcnt, &utp->jitcnt) ||
+ __put_user(txc.calcnt, &utp->calcnt) ||
+ __put_user(txc.errcnt, &utp->errcnt) ||
+ __put_user(txc.stbcnt, &utp->stbcnt))
+ ret = -EFAULT;
+
+ return ret;
+}
+
+asmlinkage long sys32_pause(void)
+{
+ current->state = TASK_INTERRUPTIBLE;
+ schedule();
+
+ return -ERESTARTNOHAND;
+}
+
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
+{
+ long usec;
+
+ if (!access_ok(VERIFY_READ, i, sizeof(*i)))
+ return -EFAULT;
+ if (__get_user(o->tv_sec, &i->tv_sec))
+ return -EFAULT;
+ if (__get_user(usec, &i->tv_usec))
+ return -EFAULT;
+ o->tv_nsec = usec * 1000;
+ return 0;
+}
+
+static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
+{
+ return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
+ (__put_user(i->tv_sec, &o->tv_sec) |
+ __put_user(i->tv_usec, &o->tv_usec)));
+}
+
+struct sysinfo32 {
+ s32 uptime;
+ u32 loads[3];
+ u32 totalram;
+ u32 freeram;
+ u32 sharedram;
+ u32 bufferram;
+ u32 totalswap;
+ u32 freeswap;
+ unsigned short procs;
+ unsigned short pad;
+ u32 totalhigh;
+ u32 freehigh;
+ u32 mem_unit;
+ char _f[20-2*sizeof(int)-sizeof(int)];
+};
+
+asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
+{
+ struct sysinfo s;
+ int ret, err;
+ int bitcount=0;
+ mm_segment_t old_fs = get_fs ();
+
+ /* The __user cast is valid due to set_fs() */
+ set_fs (KERNEL_DS);
+ ret = sys_sysinfo((struct sysinfo __user *)&s);
+ set_fs (old_fs);
+
+ /* Check to see if any memory value is too large for 32-bit and
+ * scale down if needed.
+ */
+ if ((s.totalram >> 32) || (s.totalswap >> 32)) {
+ while (s.mem_unit < PAGE_SIZE) {
+ s.mem_unit <<= 1;
+ bitcount++;
+ }
+ s.totalram >>=bitcount;
+ s.freeram >>= bitcount;
+ s.sharedram >>= bitcount;
+ s.bufferram >>= bitcount;
+ s.totalswap >>= bitcount;
+ s.freeswap >>= bitcount;
+ s.totalhigh >>= bitcount;
+ s.freehigh >>= bitcount;
+ }
+
+ err = put_user (s.uptime, &info->uptime);
+ err |= __put_user (s.loads[0], &info->loads[0]);
+ err |= __put_user (s.loads[1], &info->loads[1]);
+ err |= __put_user (s.loads[2], &info->loads[2]);
+ err |= __put_user (s.totalram, &info->totalram);
+ err |= __put_user (s.freeram, &info->freeram);
+ err |= __put_user (s.sharedram, &info->sharedram);
+ err |= __put_user (s.bufferram, &info->bufferram);
+ err |= __put_user (s.totalswap, &info->totalswap);
+ err |= __put_user (s.freeswap, &info->freeswap);
+ err |= __put_user (s.procs, &info->procs);
+ err |= __put_user (s.totalhigh, &info->totalhigh);
+ err |= __put_user (s.freehigh, &info->freehigh);
+ err |= __put_user (s.mem_unit, &info->mem_unit);
+ if (err)
+ return -EFAULT;
+
+ return ret;
+}
+
+
+
+
+/* Translations due to time_t size differences. Which affects all
+ sorts of things, like timeval and itimerval. */
+extern struct timezone sys_tz;
+
+asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+ if (tv) {
+ struct timeval ktv;
+ do_gettimeofday(&ktv);
+ if (put_tv32(tv, &ktv))
+ return -EFAULT;
+ }
+ if (tz) {
+ if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+
+
+asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+ struct timespec kts;
+ struct timezone ktz;
+
+ if (tv) {
+ if (get_ts32(&kts, tv))
+ return -EFAULT;
+ }
+ if (tz) {
+ if (copy_from_user(&ktz, tz, sizeof(ktz)))
+ return -EFAULT;
+ }
+
+ return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
+}
+
+#ifdef CONFIG_SYSVIPC
+long sys32_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
+ u32 fifth)
+{
+ int version;
+
+ version = call >> 16; /* hack for backward compatibility */
+ call &= 0xffff;
+
+ switch (call) {
+
+ case SEMTIMEDOP:
+ if (fifth)
+ /* sign extend semid */
+ return compat_sys_semtimedop((int)first,
+ compat_ptr(ptr), second,
+ compat_ptr(fifth));
+ /* else fall through for normal semop() */
+ case SEMOP:
+ /* struct sembuf is the same on 32 and 64bit :)) */
+ /* sign extend semid */
+ return sys_semtimedop((int)first, compat_ptr(ptr), second,
+ NULL);
+ case SEMGET:
+ /* sign extend key, nsems */
+ return sys_semget((int)first, (int)second, third);
+ case SEMCTL:
+ /* sign extend semid, semnum */
+ return compat_sys_semctl((int)first, (int)second, third,
+ compat_ptr(ptr));
+
+ case MSGSND:
+ /* sign extend msqid */
+ return compat_sys_msgsnd((int)first, (int)second, third,
+ compat_ptr(ptr));
+ case MSGRCV:
+ /* sign extend msqid, msgtyp */
+ return compat_sys_msgrcv((int)first, second, (int)fifth,
+ third, version, compat_ptr(ptr));
+ case MSGGET:
+ /* sign extend key */
+ return sys_msgget((int)first, second);
+ case MSGCTL:
+ /* sign extend msqid */
+ return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
+
+ case SHMAT:
+ /* sign extend shmid */
+ return compat_sys_shmat((int)first, second, third, version,
+ compat_ptr(ptr));
+ case SHMDT:
+ return sys_shmdt(compat_ptr(ptr));
+ case SHMGET:
+ /* sign extend key_t */
+ return sys_shmget((int)first, second, third);
+ case SHMCTL:
+ /* sign extend shmid */
+ return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
+
+ default:
+ return -ENOSYS;
+ }
+
+ return -ENOSYS;
+}
+#endif
+
+/* Note: it is necessary to treat out_fd and in_fd as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count)
+{
+ mm_segment_t old_fs = get_fs();
+ int ret;
+ off_t of;
+ off_t __user *up;
+
+ if (offset && get_user(of, offset))
+ return -EFAULT;
+
+ /* The __user pointer cast is valid because of the set_fs() */
+ set_fs(KERNEL_DS);
+ up = offset ? (off_t __user *) &of : NULL;
+ ret = sys_sendfile((int)out_fd, (int)in_fd, up, count);
+ set_fs(old_fs);
+
+ if (offset && put_user(of, offset))
+ return -EFAULT;
+
+ return ret;
+}
+
+asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
+{
+ mm_segment_t old_fs = get_fs();
+ int ret;
+ loff_t lof;
+ loff_t __user *up;
+
+ if (offset && get_user(lof, offset))
+ return -EFAULT;
+
+ /* The __user pointer cast is valid because of the set_fs() */
+ set_fs(KERNEL_DS);
+ up = offset ? (loff_t __user *) &lof : NULL;
+ ret = sys_sendfile64(out_fd, in_fd, up, count);
+ set_fs(old_fs);
+
+ if (offset && put_user(lof, offset))
+ return -EFAULT;
+
+ return ret;
+}
+
+long sys32_execve(unsigned long a0, unsigned long a1, unsigned long a2,
+ unsigned long a3, unsigned long a4, unsigned long a5,
+ struct pt_regs *regs)
+{
+ int error;
+ char * filename;
+
+ filename = getname((char __user *) a0);
+ error = PTR_ERR(filename);
+ if (IS_ERR(filename))
+ goto out;
+ flush_fp_to_thread(current);
+ flush_altivec_to_thread(current);
+
+ error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs);
+
+ if (error == 0) {
+ task_lock(current);
+ current->ptrace &= ~PT_DTRACE;
+ task_unlock(current);
+ }
+ putname(filename);
+
+out:
+ return error;
+}
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
+{
+ return sys_prctl((int)option,
+ (unsigned long) arg2,
+ (unsigned long) arg3,
+ (unsigned long) arg4,
+ (unsigned long) arg5);
+}
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval)
+{
+ struct timespec t;
+ int ret;
+ mm_segment_t old_fs = get_fs ();
+
+ /* The __user pointer cast is valid because of the set_fs() */
+ set_fs (KERNEL_DS);
+ ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t);
+ set_fs (old_fs);
+ if (put_compat_timespec(&t, interval))
+ return -EFAULT;
+ return ret;
+}
+
+asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+{
+ return sys_pciconfig_read((unsigned long) bus,
+ (unsigned long) dfn,
+ (unsigned long) off,
+ (unsigned long) len,
+ compat_ptr(ubuf));
+}
+
+asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+{
+ return sys_pciconfig_write((unsigned long) bus,
+ (unsigned long) dfn,
+ (unsigned long) off,
+ (unsigned long) len,
+ compat_ptr(ubuf));
+}
+
+asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
+{
+ return sys_pciconfig_iobase(which, in_bus, in_devfn);
+}
+
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_access(const char __user * filename, u32 mode)
+{
+ return sys_access(filename, (int)mode);
+}
+
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_creat(const char __user * pathname, u32 mode)
+{
+ return sys_creat(pathname, (int)mode);
+}
+
+
+/* Note: it is necessary to treat pid and options as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
+{
+ return sys_waitpid((int)pid, stat_addr, (int)options);
+}
+
+
+/* Note: it is necessary to treat gidsetsize as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getgroups(u32 gidsetsize, gid_t __user *grouplist)
+{
+ return sys_getgroups((int)gidsetsize, grouplist);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getpgid(u32 pid)
+{
+ return sys_getpgid((int)pid);
+}
+
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getsid(u32 pid)
+{
+ return sys_getsid((int)pid);
+}
+
+
+/* Note: it is necessary to treat pid and sig as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_kill(u32 pid, u32 sig)
+{
+ return sys_kill((int)pid, (int)sig);
+}
+
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_mkdir(const char __user * pathname, u32 mode)
+{
+ return sys_mkdir(pathname, (int)mode);
+}
+
+long sys32_nice(u32 increment)
+{
+ /* sign extend increment */
+ return sys_nice((int)increment);
+}
+
+off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
+{
+ /* sign extend n */
+ return sys_lseek(fd, (int)offset, origin);
+}
+
+/* Note: it is necessary to treat bufsiz as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_readlink(const char __user * path, char __user * buf, u32 bufsiz)
+{
+ return sys_readlink(path, buf, (int)bufsiz);
+}
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_get_priority_max(u32 policy)
+{
+ return sys_sched_get_priority_max((int)policy);
+}
+
+
+/* Note: it is necessary to treat policy as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_get_priority_min(u32 policy)
+{
+ return sys_sched_get_priority_min((int)policy);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_getparam(u32 pid, struct sched_param __user *param)
+{
+ return sys_sched_getparam((int)pid, param);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_getscheduler(u32 pid)
+{
+ return sys_sched_getscheduler((int)pid);
+}
+
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_setparam(u32 pid, struct sched_param __user *param)
+{
+ return sys_sched_setparam((int)pid, param);
+}
+
+
+/* Note: it is necessary to treat pid and policy as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
+{
+ return sys_sched_setscheduler((int)pid, (int)policy, param);
+}
+
+
+/* Note: it is necessary to treat len as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setdomainname(char __user *name, u32 len)
+{
+ return sys_setdomainname(name, (int)len);
+}
+
+
+/* Note: it is necessary to treat gidsetsize as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setgroups(u32 gidsetsize, gid_t __user *grouplist)
+{
+ return sys_setgroups((int)gidsetsize, grouplist);
+}
+
+
+asmlinkage long sys32_sethostname(char __user *name, u32 len)
+{
+ /* sign extend len */
+ return sys_sethostname(name, (int)len);
+}
+
+
+/* Note: it is necessary to treat pid and pgid as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setpgid(u32 pid, u32 pgid)
+{
+ return sys_setpgid((int)pid, (int)pgid);
+}
+
+long sys32_getpriority(u32 which, u32 who)
+{
+ /* sign extend which and who */
+ return sys_getpriority((int)which, (int)who);
+}
+
+long sys32_setpriority(u32 which, u32 who, u32 niceval)
+{
+ /* sign extend which, who and niceval */
+ return sys_setpriority((int)which, (int)who, (int)niceval);
+}
+
+long sys32_ioprio_get(u32 which, u32 who)
+{
+ /* sign extend which and who */
+ return sys_ioprio_get((int)which, (int)who);
+}
+
+long sys32_ioprio_set(u32 which, u32 who, u32 ioprio)
+{
+ /* sign extend which, who and ioprio */
+ return sys_ioprio_set((int)which, (int)who, (int)ioprio);
+}
+
+/* Note: it is necessary to treat newmask as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_ssetmask(u32 newmask)
+{
+ return sys_ssetmask((int) newmask);
+}
+
+asmlinkage long sys32_syslog(u32 type, char __user * buf, u32 len)
+{
+ /* sign extend len */
+ return sys_syslog(type, buf, (int)len);
+}
+
+
+/* Note: it is necessary to treat mask as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_umask(u32 mask)
+{
+ return sys_umask((int)mask);
+}
+
+#ifdef CONFIG_SYSCTL
+struct __sysctl_args32 {
+ u32 name;
+ int nlen;
+ u32 oldval;
+ u32 oldlenp;
+ u32 newval;
+ u32 newlen;
+ u32 __unused[4];
+};
+
+asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
+{
+ struct __sysctl_args32 tmp;
+ int error;
+ size_t oldlen;
+ size_t __user *oldlenp = NULL;
+ unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
+
+ if (copy_from_user(&tmp, args, sizeof(tmp)))
+ return -EFAULT;
+
+ if (tmp.oldval && tmp.oldlenp) {
+ /* Duh, this is ugly and might not work if sysctl_args
+ is in read-only memory, but do_sysctl does indirectly
+ a lot of uaccess in both directions and we'd have to
+ basically copy the whole sysctl.c here, and
+ glibc's __sysctl uses rw memory for the structure
+ anyway. */
+ oldlenp = (size_t __user *)addr;
+ if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) ||
+ put_user(oldlen, oldlenp))
+ return -EFAULT;
+ }
+
+ lock_kernel();
+ error = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
+ compat_ptr(tmp.oldval), oldlenp,
+ compat_ptr(tmp.newval), tmp.newlen);
+ unlock_kernel();
+ if (oldlenp) {
+ if (!error) {
+ if (get_user(oldlen, oldlenp) ||
+ put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)))
+ error = -EFAULT;
+ }
+ copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
+ }
+ return error;
+}
+#endif
+
+unsigned long sys32_mmap2(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long pgoff)
+{
+ /* This should remain 12 even if PAGE_SIZE changes */
+ return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
+}
+
+int get_compat_timeval(struct timeval *tv, struct compat_timeval __user *ctv)
+{
+ return (!access_ok(VERIFY_READ, ctv, sizeof(*ctv)) ||
+ __get_user(tv->tv_sec, &ctv->tv_sec) ||
+ __get_user(tv->tv_usec, &ctv->tv_usec)) ? -EFAULT : 0;
+}
+
+asmlinkage long sys32_utimes(char __user *filename, struct compat_timeval __user *tvs)
+{
+ struct timeval ktvs[2], *ptr;
+
+ ptr = NULL;
+ if (tvs) {
+ if (get_compat_timeval(&ktvs[0], &tvs[0]) ||
+ get_compat_timeval(&ktvs[1], &tvs[1]))
+ return -EFAULT;
+ ptr = ktvs;
+ }
+
+ return do_utimes(filename, ptr);
+}
+
+long sys32_tgkill(u32 tgid, u32 pid, int sig)
+{
+ /* sign extend tgid, pid */
+ return sys_tgkill((int)tgid, (int)pid, sig);
+}
+
+/*
+ * long long munging:
+ * The 32 bit ABI passes long longs in an odd even register pair.
+ */
+
+compat_ssize_t sys32_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
+ u32 reg6, u32 poshi, u32 poslo)
+{
+ return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
+}
+
+compat_ssize_t sys32_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
+ u32 reg6, u32 poshi, u32 poslo)
+{
+ return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
+}
+
+compat_ssize_t sys32_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
+{
+ return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
+}
+
+asmlinkage int sys32_truncate64(const char __user * path, u32 reg4,
+ unsigned long high, unsigned long low)
+{
+ return sys_truncate(path, (high << 32) | low);
+}
+
+asmlinkage int sys32_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
+ unsigned long low)
+{
+ return sys_ftruncate(fd, (high << 32) | low);
+}
+
+long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
+ size_t len)
+{
+ return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
+ buf, len);
+}
+
+long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
+ size_t len, int advice)
+{
+ return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len,
+ advice);
+}
+
+long ppc32_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
+ u32 len_high, u32 len_low)
+{
+ return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low,
+ (u64)len_high << 32 | len_low, advice);
+}
+
+long ppc32_timer_create(clockid_t clock,
+ struct compat_sigevent __user *ev32,
+ timer_t __user *timer_id)
+{
+ sigevent_t event;
+ timer_t t;
+ long err;
+ mm_segment_t savefs;
+
+ if (ev32 == NULL)
+ return sys_timer_create(clock, NULL, timer_id);
+
+ if (get_compat_sigevent(&event, ev32))
+ return -EFAULT;
+
+ if (!access_ok(VERIFY_WRITE, timer_id, sizeof(timer_t)))
+ return -EFAULT;
+
+ savefs = get_fs();
+ set_fs(KERNEL_DS);
+ /* The __user pointer casts are valid due to the set_fs() */
+ err = sys_timer_create(clock,
+ (sigevent_t __user *) &event,
+ (timer_t __user *) &t);
+ set_fs(savefs);
+
+ if (err == 0)
+ err = __put_user(t, timer_id);
+
+ return err;
+}
+
+asmlinkage long sys32_add_key(const char __user *_type,
+ const char __user *_description,
+ const void __user *_payload,
+ u32 plen,
+ u32 ringid)
+{
+ return sys_add_key(_type, _description, _payload, plen, ringid);
+}
+
+asmlinkage long sys32_request_key(const char __user *_type,
+ const char __user *_description,
+ const char __user *_callout_info,
+ u32 destringid)
+{
+ return sys_request_key(_type, _description, _callout_info, destringid);
+}
+
diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
new file mode 100644
index 00000000000..3e3a4f67de9
--- /dev/null
+++ b/arch/powerpc/kernel/syscalls.c
@@ -0,0 +1,351 @@
+/*
+ * Implementation of various system calls for Linux/PowerPC
+ *
+ * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * Derived from "arch/i386/kernel/sys_i386.c"
+ * Adapted from the i386 version by Gary Thomas
+ * Modified by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras (paulus@cs.anu.edu.au).
+ *
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the Linux/PPC
+ * platform.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/syscalls.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/mman.h>
+#include <linux/sys.h>
+#include <linux/ipc.h>
+#include <linux/utsname.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/personality.h>
+
+#include <asm/uaccess.h>
+#include <asm/ipc.h>
+#include <asm/semaphore.h>
+#include <asm/time.h>
+#include <asm/unistd.h>
+
+extern unsigned long wall_jiffies;
+
+
+/*
+ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
+ *
+ * This is really horribly ugly.
+ */
+int sys_ipc(uint call, int first, unsigned long second, long 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,
+ (unsigned)second, NULL);
+ break;
+ case SEMTIMEDOP:
+ ret = sys_semtimedop(first, (struct sembuf __user *)ptr,
+ (unsigned)second,
+ (const struct timespec __user *) fifth);
+ break;
+ case SEMGET:
+ ret = sys_semget (first, (int)second, third);
+ break;
+ case SEMCTL: {
+ union semun fourth;
+
+ ret = -EINVAL;
+ if (!ptr)
+ break;
+ if ((ret = get_user(fourth.__pad, (void __user * __user *)ptr)))
+ break;
+ ret = sys_semctl(first, (int)second, third, fourth);
+ break;
+ }
+ case MSGSND:
+ ret = sys_msgsnd(first, (struct msgbuf __user *)ptr,
+ (size_t)second, third);
+ break;
+ case MSGRCV:
+ switch (version) {
+ case 0: {
+ struct ipc_kludge tmp;
+
+ ret = -EINVAL;
+ if (!ptr)
+ break;
+ if ((ret = copy_from_user(&tmp,
+ (struct ipc_kludge __user *) ptr,
+ sizeof (tmp)) ? -EFAULT : 0))
+ break;
+ ret = sys_msgrcv(first, tmp.msgp, (size_t) second,
+ tmp.msgtyp, third);
+ break;
+ }
+ default:
+ ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
+ (size_t)second, fifth, third);
+ break;
+ }
+ break;
+ case MSGGET:
+ ret = sys_msgget((key_t)first, (int)second);
+ break;
+ case MSGCTL:
+ ret = sys_msgctl(first, (int)second,
+ (struct msqid_ds __user *)ptr);
+ break;
+ case SHMAT: {
+ ulong raddr;
+ ret = do_shmat(first, (char __user *)ptr, (int)second, &raddr);
+ if (ret)
+ break;
+ ret = put_user(raddr, (ulong __user *) third);
+ break;
+ }
+ case SHMDT:
+ ret = sys_shmdt((char __user *)ptr);
+ break;
+ case SHMGET:
+ ret = sys_shmget(first, (size_t)second, third);
+ break;
+ case SHMCTL:
+ ret = sys_shmctl(first, (int)second,
+ (struct shmid_ds __user *)ptr);
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * sys_pipe() is the normal C calling standard for creating
+ * a pipe. It's not the way unix traditionally does this, though.
+ */
+int sys_pipe(int __user *fildes)
+{
+ int fd[2];
+ int error;
+
+ error = do_pipe(fd);
+ if (!error) {
+ if (copy_to_user(fildes, fd, 2*sizeof(int)))
+ error = -EFAULT;
+ }
+ return error;
+}
+
+static inline unsigned long do_mmap2(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long off, int shift)
+{
+ struct file * file = NULL;
+ int ret = -EINVAL;
+
+ if (shift) {
+ if (off & ((1 << shift) - 1))
+ goto out;
+ off >>= shift;
+ }
+
+ ret = -EBADF;
+ if (!(flags & MAP_ANONYMOUS)) {
+ if (!(file = fget(fd)))
+ goto out;
+ }
+
+ flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+
+ down_write(&current->mm->mmap_sem);
+ ret = do_mmap_pgoff(file, addr, len, prot, flags, off);
+ up_write(&current->mm->mmap_sem);
+ if (file)
+ fput(file);
+out:
+ return ret;
+}
+
+unsigned long sys_mmap2(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long pgoff)
+{
+ return do_mmap2(addr, len, prot, flags, fd, pgoff, PAGE_SHIFT-12);
+}
+
+unsigned long sys_mmap(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, off_t offset)
+{
+ return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT);
+}
+
+#ifdef CONFIG_PPC32
+/*
+ * Due to some executables calling the wrong select we sometimes
+ * get wrong args. This determines how the args are being passed
+ * (a single ptr to them all args passed) then calls
+ * sys_select() with the appropriate args. -- Cort
+ */
+int
+ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp)
+{
+ if ( (unsigned long)n >= 4096 )
+ {
+ unsigned long __user *buffer = (unsigned long __user *)n;
+ if (!access_ok(VERIFY_READ, buffer, 5*sizeof(unsigned long))
+ || __get_user(n, buffer)
+ || __get_user(inp, ((fd_set __user * __user *)(buffer+1)))
+ || __get_user(outp, ((fd_set __user * __user *)(buffer+2)))
+ || __get_user(exp, ((fd_set __user * __user *)(buffer+3)))
+ || __get_user(tvp, ((struct timeval __user * __user *)(buffer+4))))
+ return -EFAULT;
+ }
+ return sys_select(n, inp, outp, exp, tvp);
+}
+#endif
+
+#ifdef CONFIG_PPC64
+long ppc64_personality(unsigned long personality)
+{
+ long ret;
+
+ if (personality(current->personality) == PER_LINUX32
+ && personality == PER_LINUX)
+ personality = PER_LINUX32;
+ ret = sys_personality(personality);
+ if (ret == PER_LINUX32)
+ ret = PER_LINUX;
+ return ret;
+}
+#endif
+
+#ifdef CONFIG_PPC64
+#define OVERRIDE_MACHINE (personality(current->personality) == PER_LINUX32)
+#else
+#define OVERRIDE_MACHINE 0
+#endif
+
+static inline int override_machine(char *mach)
+{
+ if (OVERRIDE_MACHINE) {
+ /* change ppc64 to ppc */
+ if (__put_user(0, mach+3) || __put_user(0, mach+4))
+ return -EFAULT;
+ }
+ return 0;
+}
+
+long ppc_newuname(struct new_utsname __user * name)
+{
+ int err = 0;
+
+ down_read(&uts_sem);
+ if (copy_to_user(name, &system_utsname, sizeof(*name)))
+ err = -EFAULT;
+ up_read(&uts_sem);
+ if (!err)
+ err = override_machine(name->machine);
+ return err;
+}
+
+int sys_uname(struct old_utsname __user *name)
+{
+ int err = 0;
+
+ down_read(&uts_sem);
+ if (copy_to_user(name, &system_utsname, sizeof(*name)))
+ err = -EFAULT;
+ up_read(&uts_sem);
+ if (!err)
+ err = override_machine(name->machine);
+ return err;
+}
+
+int sys_olduname(struct oldold_utsname __user *name)
+{
+ int error;
+
+ if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
+ return -EFAULT;
+
+ down_read(&uts_sem);
+ 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 |= override_machine(name->machine);
+ up_read(&uts_sem);
+
+ return error? -EFAULT: 0;
+}
+
+#ifdef CONFIG_PPC64
+time_t sys64_time(time_t __user * tloc)
+{
+ time_t secs;
+ time_t usecs;
+
+ long tb_delta = tb_ticks_since(tb_last_stamp);
+ tb_delta += (jiffies - wall_jiffies) * tb_ticks_per_jiffy;
+
+ secs = xtime.tv_sec;
+ usecs = (xtime.tv_nsec/1000) + tb_delta / tb_ticks_per_usec;
+ while (usecs >= USEC_PER_SEC) {
+ ++secs;
+ usecs -= USEC_PER_SEC;
+ }
+
+ if (tloc) {
+ if (put_user(secs,tloc))
+ secs = -EFAULT;
+ }
+
+ return secs;
+}
+#endif
+
+void do_show_syscall(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7, unsigned long r8,
+ struct pt_regs *regs)
+{
+ printk("syscall %ld(%lx, %lx, %lx, %lx, %lx, %lx) regs=%p current=%p"
+ " cpu=%d\n", regs->gpr[0], r3, r4, r5, r6, r7, r8, regs,
+ current, smp_processor_id());
+}
+
+void do_show_syscall_exit(unsigned long r3)
+{
+ printk(" -> %lx, current=%p cpu=%d\n", r3, current, smp_processor_id());
+}
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 82d1fedb441..b364141ec01 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -102,7 +102,7 @@ COMPAT_SYS(fcntl)
SYSCALL(ni_syscall)
SYSCALL32(setpgid)
SYSCALL(ni_syscall)
-SYS32ONLY(olduname)
+SYSX(sys_ni_syscall,sys_olduname, sys_olduname)
SYSCALL32(umask)
SYSCALL(chroot)
SYSCALL(ustat)
@@ -152,7 +152,7 @@ COMPAT_SYS(getitimer)
COMPAT_SYS(newstat)
COMPAT_SYS(newlstat)
COMPAT_SYS(newfstat)
-SYSX(sys_ni_syscall,sys32_uname,sys_uname)
+SYSX(sys_ni_syscall,sys_uname,sys_uname)
SYSCALL(ni_syscall)
SYSCALL(vhangup)
SYSCALL(ni_syscall)
@@ -165,7 +165,7 @@ SYSCALL(fsync)
SYSX(sys_ni_syscall,ppc32_sigreturn,sys_sigreturn)
PPC_SYS(clone)
SYSCALL32(setdomainname)
-SYSX(ppc64_newuname,ppc64_newuname,sys_newuname)
+PPC_SYS(newuname)
SYSCALL(ni_syscall)
SYSCALL32(adjtimex)
SYSCALL(mprotect)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 18:47:41 +0000