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Sparseify MIPS.

Browse Source 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2005-03-01 19:22:29 +00:00
parent 14f18b7f7e
commit fe00f943e0
21 changed files with 622 additions and 600 deletions
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2
arch/mips/kernel/i8259.c
View File

@@ -321,7 +321,7 @@ void __init init_i8259_irqs (void)
for (i = 0; i < 16; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].handler = &i8259A_irq_type;
}

14
arch/mips/kernel/irixelf.c
View File

@@ -147,7 +147,7 @@ static void padzero(unsigned long elf_bss)
nbyte = elf_bss & (PAGE_SIZE-1);
if (nbyte) {
nbyte = PAGE_SIZE - nbyte;
clear_user((void *) elf_bss, nbyte);
clear_user((void __user *) elf_bss, nbyte);
}
}
@@ -878,10 +878,10 @@ static int load_irix_library(struct file *file)
* phdrs there are in the USER_PHDRP array. We return the vaddr the
* first phdr was successfully mapped to.
*/
unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt)
unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
{
unsigned long type, vaddr, filesz, offset, flags;
struct elf_phdr *hp;
struct elf_phdr __user *hp;
struct file *filp;
int i, retval;
@@ -968,9 +968,9 @@ unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt)
/* These are the only things you should do on a core-file: use only these
* functions to write out all the necessary info.
*/
static int dump_write(struct file *file, const void *addr, int nr)
static int dump_write(struct file *file, const void __user *addr, int nr)
{
return file->f_op->write(file, (const char *) addr, nr, &file->f_pos) == nr;
return file->f_op->write(file, (const char __user *) addr, nr, &file->f_pos) == nr;
}
static int dump_seek(struct file *file, off_t off)
@@ -1204,7 +1204,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
len = current->mm->arg_end - current->mm->arg_start;
len = len >= ELF_PRARGSZ ? ELF_PRARGSZ : len;
(void *) copy_from_user(&psinfo.pr_psargs,
(const char *)current->mm->arg_start, len);
(const char __user *)current->mm->arg_start, len);
for (i = 0; i < len; i++)
if (psinfo.pr_psargs[i] == 0)
psinfo.pr_psargs[i] = ' ';
@@ -1301,7 +1301,7 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
#ifdef DEBUG
printk("elf_core_dump: writing %08lx %lx\n", addr, len);
#endif
DUMP_WRITE((void *)addr, len);
DUMP_WRITE((void __user *)addr, len);
}
if ((off_t) file->f_pos != offset) {

7
arch/mips/kernel/irixinv.c
View File

@@ -30,10 +30,10 @@ void add_to_inventory (int class, int type, int controller, int unit, int state)
inventory_items++;
}
int dump_inventory_to_user (void *userbuf, int size)
int dump_inventory_to_user (void __user *userbuf, int size)
{
inventory_t *inv = &inventory [0];
inventory_t *user = userbuf;
inventory_t __user *user = userbuf;
int v;
if (!access_ok(VERIFY_WRITE, userbuf, size))
@@ -41,7 +41,8 @@ int dump_inventory_to_user (void *userbuf, int size)
for (v = 0; v < inventory_items; v++){
inv = &inventory [v];
copy_to_user (user, inv, sizeof (inventory_t));
if (copy_to_user (user, inv, sizeof (inventory_t)))
return -EFAULT;
user++;
}
return inventory_items * sizeof (inventory_t);

438
arch/mips/kernel/irixsig.c
View File

@@ -76,36 +76,39 @@ static inline void dump_irix5_sigctx(struct sigctx_irix5 *c)
}
#endif
static void setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
int signr, sigset_t *oldmask)
static int setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
int signr, sigset_t *oldmask)
{
struct sigctx_irix5 __user *ctx;
unsigned long sp;
struct sigctx_irix5 *ctx;
int i;
int error, i;
sp = regs->regs[29];
sp -= sizeof(struct sigctx_irix5);
sp &= ~(0xf);
ctx = (struct sigctx_irix5 *) sp;
ctx = (struct sigctx_irix5 __user *) sp;
if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
goto segv_and_exit;
__put_user(0, &ctx->weird_fpu_thing);
__put_user(~(0x00000001), &ctx->rmask);
__put_user(0, &ctx->regs[0]);
error = __put_user(0, &ctx->weird_fpu_thing);
error |= __put_user(~(0x00000001), &ctx->rmask);
error |= __put_user(0, &ctx->regs[0]);
for(i = 1; i < 32; i++)
__put_user((u64) regs->regs[i], &ctx->regs[i]);
error |= __put_user((u64) regs->regs[i], &ctx->regs[i]);
__put_user((u64) regs->hi, &ctx->hi);
__put_user((u64) regs->lo, &ctx->lo);
__put_user((u64) regs->cp0_epc, &ctx->pc);
__put_user(!!used_math(), &ctx->usedfp);
__put_user((u64) regs->cp0_cause, &ctx->cp0_cause);
__put_user((u64) regs->cp0_badvaddr, &ctx->cp0_badvaddr);
error |= __put_user((u64) regs->hi, &ctx->hi);
error |= __put_user((u64) regs->lo, &ctx->lo);
error |= __put_user((u64) regs->cp0_epc, &ctx->pc);
error |= __put_user(!!used_math(), &ctx->usedfp);
error |= __put_user((u64) regs->cp0_cause, &ctx->cp0_cause);
error |= __put_user((u64) regs->cp0_badvaddr, &ctx->cp0_badvaddr);
__put_user(0, &ctx->sstk_flags); /* XXX sigstack unimp... todo... */
error |= __put_user(0, &ctx->sstk_flags); /* XXX sigstack unimp... todo... */
__copy_to_user(&ctx->sigset, oldmask, sizeof(irix_sigset_t));
error |= __copy_to_user(&ctx->sigset, oldmask, sizeof(irix_sigset_t)) ? -EFAULT : 0;
if (error)
goto segv_and_exit;
#ifdef DEBUG_SIG
dump_irix5_sigctx(ctx);
@@ -117,13 +120,14 @@ static void setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
regs->regs[7] = (unsigned long) ka->sa.sa_handler;
regs->regs[25] = regs->cp0_epc = (unsigned long) ka->sa_restorer;
return;
return 1;
segv_and_exit:
force_sigsegv(signr, current);
return 0;
}
static void inline
static int inline
setup_irix_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
int signr, sigset_t *oldmask, siginfo_t *info)
{
@@ -131,9 +135,11 @@ setup_irix_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
do_exit(SIGSEGV);
}
static inline void handle_signal(unsigned long sig, siginfo_t *info,
static inline int handle_signal(unsigned long sig, siginfo_t *info,
struct k_sigaction *ka, sigset_t *oldset, struct pt_regs * regs)
{
int ret;
switch(regs->regs[0]) {
case ERESTARTNOHAND:
regs->regs[2] = EINTR;
@@ -151,9 +157,9 @@ static inline void handle_signal(unsigned long sig, siginfo_t *info,
regs->regs[0] = 0; /* Don't deal with this again. */
if (ka->sa.sa_flags & SA_SIGINFO)
setup_irix_rt_frame(ka, regs, sig, oldset, info);
ret = setup_irix_rt_frame(ka, regs, sig, oldset, info);
else
setup_irix_frame(ka, regs, sig, oldset);
ret = setup_irix_frame(ka, regs, sig, oldset);
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -161,6 +167,8 @@ static inline void handle_signal(unsigned long sig, siginfo_t *info,
sigaddset(&current->blocked,sig);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
return ret;
}
asmlinkage int do_irix_signal(sigset_t *oldset, struct pt_regs *regs)
@@ -184,10 +192,8 @@ asmlinkage int do_irix_signal(sigset_t *oldset, struct pt_regs *regs)
oldset = &current->blocked;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
handle_signal(signr, &info, &ka, oldset, regs);
return 1;
}
if (signr > 0)
return handle_signal(signr, &info, &ka, oldset, regs);
no_signal:
/*
@@ -208,10 +214,11 @@ no_signal:
asmlinkage void
irix_sigreturn(struct pt_regs *regs)
{
struct sigctx_irix5 *context, *magic;
struct sigctx_irix5 __user *context, *magic;
unsigned long umask, mask;
u64 *fregs;
int sig, i, base = 0;
u32 usedfp;
int error, sig, i, base = 0;
sigset_t blocked;
/* Always make any pending restarted system calls return -EINTR */
@@ -220,8 +227,8 @@ irix_sigreturn(struct pt_regs *regs)
if (regs->regs[2] == 1000)
base = 1;
context = (struct sigctx_irix5 *) regs->regs[base + 4];
magic = (struct sigctx_irix5 *) regs->regs[base + 5];
context = (struct sigctx_irix5 __user *) regs->regs[base + 4];
magic = (struct sigctx_irix5 __user *) regs->regs[base + 5];
sig = (int) regs->regs[base + 6];
#ifdef DEBUG_SIG
printk("[%s:%d] IRIX sigreturn(scp[%p],ucp[%p],sig[%d])\n",
@@ -236,25 +243,31 @@ irix_sigreturn(struct pt_regs *regs)
dump_irix5_sigctx(context);
#endif
__get_user(regs->cp0_epc, &context->pc);
umask = context->rmask; mask = 2;
for (i = 1; i < 32; i++, mask <<= 1) {
if(umask & mask)
__get_user(regs->regs[i], &context->regs[i]);
}
__get_user(regs->hi, &context->hi);
__get_user(regs->lo, &context->lo);
error = __get_user(regs->cp0_epc, &context->pc);
error |= __get_user(umask, &context->rmask);
if ((umask & 1) && context->usedfp) {
mask = 2;
for (i = 1; i < 32; i++, mask <<= 1) {
if (umask & mask)
error |= __get_user(regs->regs[i], &context->regs[i]);
}
error |= __get_user(regs->hi, &context->hi);
error |= __get_user(regs->lo, &context->lo);
error |= __get_user(usedfp, &context->usedfp);
if ((umask & 1) && usedfp) {
fregs = (u64 *) &current->thread.fpu;
for(i = 0; i < 32; i++)
fregs[i] = (u64) context->fpregs[i];
__get_user(current->thread.fpu.hard.fcr31, &context->fpcsr);
error |= __get_user(fregs[i], &context->fpregs[i]);
error |= __get_user(current->thread.fpu.hard.fcr31, &context->fpcsr);
}
/* XXX do sigstack crapola here... XXX */
if (__copy_from_user(&blocked, &context->sigset, sizeof(blocked)))
error |= __copy_from_user(&blocked, &context->sigset, sizeof(blocked)) ? -EFAULT : 0;
if (error)
goto badframe;
sigdelsetmask(&blocked, ~_BLOCKABLE);
@@ -296,8 +309,8 @@ static inline void dump_sigact_irix5(struct sigact_irix5 *p)
#endif
asmlinkage int
irix_sigaction(int sig, const struct sigaction *act,
struct sigaction *oact, void *trampoline)
irix_sigaction(int sig, const struct sigaction __user *act,
struct sigaction __user *oact, void __user *trampoline)
{
struct k_sigaction new_ka, old_ka;
int ret;
@@ -311,12 +324,16 @@ irix_sigaction(int sig, const struct sigaction *act,
#endif
if (act) {
sigset_t mask;
if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
__get_user(new_ka.sa.sa_flags, &act->sa_flags))
return -EFAULT;
int err;
__copy_from_user(&mask, &act->sa_mask, sizeof(sigset_t));
if (!access_ok(VERIFY_READ, act, sizeof(*act)))
return -EFAULT;
err = __get_user(new_ka.sa.sa_handler, &act->sa_handler);
err |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
err |= __copy_from_user(&mask, &act->sa_mask, sizeof(sigset_t)) ? -EFAULT : 0;
if (err)
return err;
/*
* Hmmm... methinks IRIX libc always passes a valid trampoline
@@ -330,30 +347,37 @@ irix_sigaction(int sig, const struct sigaction *act,
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
__put_user(old_ka.sa.sa_flags, &oact->sa_flags))
int err;
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)))
return -EFAULT;
err = __put_user(old_ka.sa.sa_handler, &oact->sa_handler);
err |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
err |= __copy_to_user(&oact->sa_mask, &old_ka.sa.sa_mask,
sizeof(sigset_t)) ? -EFAULT : 0;
if (err)
return -EFAULT;
__copy_to_user(&old_ka.sa.sa_mask, &oact->sa_mask,
sizeof(sigset_t));
}
return ret;
}
asmlinkage int irix_sigpending(irix_sigset_t *set)
asmlinkage int irix_sigpending(irix_sigset_t __user *set)
{
return do_sigpending(set, sizeof(*set));
}
asmlinkage int irix_sigprocmask(int how, irix_sigset_t *new, irix_sigset_t *old)
asmlinkage int irix_sigprocmask(int how, irix_sigset_t __user *new,
irix_sigset_t __user *old)
{
sigset_t oldbits, newbits;
if (new) {
if (!access_ok(VERIFY_READ, new, sizeof(*new)))
return -EFAULT;
__copy_from_user(&newbits, new, sizeof(unsigned long)*4);
if (__copy_from_user(&newbits, new, sizeof(unsigned long)*4))
return -EFAULT;
sigdelsetmask(&newbits, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
@@ -381,20 +405,19 @@ asmlinkage int irix_sigprocmask(int how, irix_sigset_t *new, irix_sigset_t *old)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
}
if(old) {
if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
return -EFAULT;
__copy_to_user(old, &current->blocked, sizeof(unsigned long)*4);
}
if (old)
return copy_to_user(old, &current->blocked,
sizeof(unsigned long)*4) ? -EFAULT : 0;
return 0;
}
asmlinkage int irix_sigsuspend(struct pt_regs *regs)
{
sigset_t *uset, saveset, newset;
sigset_t saveset, newset;
sigset_t __user *uset;
uset = (sigset_t *) regs->regs[4];
uset = (sigset_t __user *) regs->regs[4];
if (copy_from_user(&newset, uset, sizeof(sigset_t)))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
@@ -440,12 +463,13 @@ struct irix5_siginfo {
} stuff;
};
asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
struct timespec *tp)
asmlinkage int irix_sigpoll_sys(unsigned long __user *set,
struct irix5_siginfo __user *info, struct timespec __user *tp)
{
long expire = MAX_SCHEDULE_TIMEOUT;
sigset_t kset;
int i, sig, error, timeo = 0;
struct timespec ktp;
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigpoll_sys(%p,%p,%p)\n",
@@ -456,14 +480,8 @@ asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
if (!set)
return -EINVAL;
if (!access_ok(VERIFY_READ, set, sizeof(kset))) {
error = -EFAULT;
goto out;
}
__copy_from_user(&kset, set, sizeof(set));
if (error)
goto out;
if (copy_from_user(&kset, set, sizeof(set)))
return -EFAULT;
if (info && clear_user(info, sizeof(*info))) {
error = -EFAULT;
@@ -471,19 +489,21 @@ asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
}
if (tp) {
if (!access_ok(VERIFY_READ, tp, sizeof(*tp)))
if (copy_from_user(&ktp, tp, sizeof(*tp)))
return -EFAULT;
if (!tp->tv_sec && !tp->tv_nsec) {
error = -EINVAL;
goto out;
}
expire = timespec_to_jiffies(tp) + (tp->tv_sec||tp->tv_nsec);
if (!ktp.tv_sec && !ktp.tv_nsec)
return -EINVAL;
expire = timespec_to_jiffies(&ktp) +
(ktp.tv_sec || ktp.tv_nsec);
}
while(1) {
long tmp = 0;
expire = schedule_timeout_interruptible(expire);
current->state = TASK_INTERRUPTIBLE;
expire = schedule_timeout(expire);
for (i=0; i<=4; i++)
tmp |= (current->pending.signal.sig[i] & kset.sig[i]);
@@ -500,15 +520,14 @@ asmlinkage int irix_sigpoll_sys(unsigned long *set, struct irix5_siginfo *info,
if (timeo)
return -EAGAIN;
for(sig = 1; i <= 65 /* IRIX_NSIG */; sig++) {
for (sig = 1; i <= 65 /* IRIX_NSIG */; sig++) {
if (sigismember (&kset, sig))
continue;
if (sigismember (&current->pending.signal, sig)) {
/* XXX need more than this... */
if (info)
info->sig = sig;
error = 0;
goto out;
return copy_to_user(&info->sig, &sig, sizeof(sig));
return 0;
}
}
@@ -534,8 +553,9 @@ extern int getrusage(struct task_struct *, int, struct rusage __user *);
#define W_MASK (W_EXITED | W_TRAPPED | W_STOPPED | W_CONT | W_NOHANG)
asmlinkage int irix_waitsys(int type, int pid, struct irix5_siginfo *info,
int options, struct rusage *ru)
asmlinkage int irix_waitsys(int type, int pid,
struct irix5_siginfo __user *info, int options,
struct rusage __user *ru)
{
int flag, retval;
DECLARE_WAITQUEUE(wait, current);
@@ -543,28 +563,22 @@ asmlinkage int irix_waitsys(int type, int pid, struct irix5_siginfo *info,
struct task_struct *p;
struct list_head *_p;
if (!info) {
retval = -EINVAL;
goto out;
}
if (!access_ok(VERIFY_WRITE, info, sizeof(*info))) {
retval = -EFAULT;
goto out;
}
if (ru) {
if (!access_ok(VERIFY_WRITE, ru, sizeof(*ru))) {
retval = -EFAULT;
goto out;
}
}
if (options & ~(W_MASK)) {
retval = -EINVAL;
goto out;
}
if (type != IRIX_P_PID && type != IRIX_P_PGID && type != IRIX_P_ALL) {
retval = -EINVAL;
goto out;
}
if (!info)
return -EINVAL;
if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
return -EFAULT;
if (ru)
if (!access_ok(VERIFY_WRITE, ru, sizeof(*ru)))
return -EFAULT;
if (options & ~W_MASK)
return -EINVAL;
if (type != IRIX_P_PID && type != IRIX_P_PGID && type != IRIX_P_ALL)
return -EINVAL;
add_wait_queue(&current->signal->wait_chldexit, &wait);
repeat:
flag = 0;
@@ -595,18 +609,20 @@ repeat:
add_parent(p, p->parent);
write_unlock_irq(&tasklist_lock);
retval = ru ? getrusage(p, RUSAGE_BOTH, ru) : 0;
if (!retval && ru) {
retval |= __put_user(SIGCHLD, &info->sig);
retval |= __put_user(0, &info->code);
retval |= __put_user(p->pid, &info->stuff.procinfo.pid);
retval |= __put_user((p->exit_code >> 8) & 0xff,
&info->stuff.procinfo.procdata.child.status);
retval |= __put_user(p->utime, &info->stuff.procinfo.procdata.child.utime);
retval |= __put_user(p->stime, &info->stuff.procinfo.procdata.child.stime);
}
if (!retval) {
p->exit_code = 0;
}
if (retval)
goto end_waitsys;
retval = __put_user(SIGCHLD, &info->sig);
retval |= __put_user(0, &info->code);
retval |= __put_user(p->pid, &info->stuff.procinfo.pid);
retval |= __put_user((p->exit_code >> 8) & 0xff,
&info->stuff.procinfo.procdata.child.status);
retval |= __put_user(p->utime, &info->stuff.procinfo.procdata.child.utime);
retval |= __put_user(p->stime, &info->stuff.procinfo.procdata.child.stime);
if (retval)
goto end_waitsys;
p->exit_code = 0;
goto end_waitsys;
case EXIT_ZOMBIE:
@@ -614,16 +630,18 @@ repeat:
current->signal->cstime += p->stime + p->signal->cstime;
if (ru != NULL)
getrusage(p, RUSAGE_BOTH, ru);
__put_user(SIGCHLD, &info->sig);
__put_user(1, &info->code); /* CLD_EXITED */
__put_user(p->pid, &info->stuff.procinfo.pid);
__put_user((p->exit_code >> 8) & 0xff,
retval = __put_user(SIGCHLD, &info->sig);
retval |= __put_user(1, &info->code); /* CLD_EXITED */
retval |= __put_user(p->pid, &info->stuff.procinfo.pid);
retval |= __put_user((p->exit_code >> 8) & 0xff,
&info->stuff.procinfo.procdata.child.status);
__put_user(p->utime,
retval |= __put_user(p->utime,
&info->stuff.procinfo.procdata.child.utime);
__put_user(p->stime,
retval |= __put_user(p->stime,
&info->stuff.procinfo.procdata.child.stime);
retval = 0;
if (retval)
return retval;
if (p->real_parent != p->parent) {
write_lock_irq(&tasklist_lock);
remove_parent(p);
@@ -656,7 +674,6 @@ end_waitsys:
current->state = TASK_RUNNING;
remove_wait_queue(&current->signal->wait_chldexit, &wait);
out:
return retval;
}
@@ -675,39 +692,39 @@ struct irix5_context {
asmlinkage int irix_getcontext(struct pt_regs *regs)
{
int i, base = 0;
struct irix5_context *ctx;
int error, i, base = 0;
struct irix5_context __user *ctx;
unsigned long flags;
if (regs->regs[2] == 1000)
base = 1;
ctx = (struct irix5_context *) regs->regs[base + 4];
ctx = (struct irix5_context __user *) regs->regs[base + 4];
#ifdef DEBUG_SIG
printk("[%s:%d] irix_getcontext(%p)\n",
current->comm, current->pid, ctx);
#endif
if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)));
return -EFAULT;
__put_user(current->thread.irix_oldctx, &ctx->link);
error = __put_user(current->thread.irix_oldctx, &ctx->link);
__copy_to_user(&ctx->sigmask, &current->blocked, sizeof(irix_sigset_t));
error |= __copy_to_user(&ctx->sigmask, &current->blocked, sizeof(irix_sigset_t)) ? -EFAULT : 0;
/* XXX Do sigstack stuff someday... */
__put_user(0, &ctx->stack.sp);
__put_user(0, &ctx->stack.size);
__put_user(0, &ctx->stack.flags);
error |= __put_user(0, &ctx->stack.sp);
error |= __put_user(0, &ctx->stack.size);
error |= __put_user(0, &ctx->stack.flags);
__put_user(0, &ctx->weird_graphics_thing);
__put_user(0, &ctx->regs[0]);
error |= __put_user(0, &ctx->weird_graphics_thing);
error |= __put_user(0, &ctx->regs[0]);
for (i = 1; i < 32; i++)
__put_user(regs->regs[i], &ctx->regs[i]);
__put_user(regs->lo, &ctx->regs[32]);
__put_user(regs->hi, &ctx->regs[33]);
__put_user(regs->cp0_cause, &ctx->regs[34]);
__put_user(regs->cp0_epc, &ctx->regs[35]);
error |= __put_user(regs->regs[i], &ctx->regs[i]);
error |= __put_user(regs->lo, &ctx->regs[32]);
error |= __put_user(regs->hi, &ctx->regs[33]);
error |= __put_user(regs->cp0_cause, &ctx->regs[34]);
error |= __put_user(regs->cp0_epc, &ctx->regs[35]);
flags = 0x0f;
if (!used_math()) {
@@ -716,119 +733,124 @@ asmlinkage int irix_getcontext(struct pt_regs *regs)
/* XXX wheee... */
printk("Wheee, no code for saving IRIX FPU context yet.\n");
}
__put_user(flags, &ctx->flags);
error |= __put_user(flags, &ctx->flags);
return 0;
return error;
}
asmlinkage unsigned long irix_setcontext(struct pt_regs *regs)
asmlinkage void irix_setcontext(struct pt_regs *regs)
{
int error, base = 0;
struct irix5_context *ctx;
struct irix5_context __user *ctx;
int err, base = 0;
u32 flags;
if(regs->regs[2] == 1000)
if (regs->regs[2] == 1000)
base = 1;
ctx = (struct irix5_context *) regs->regs[base + 4];
ctx = (struct irix5_context __user *) regs->regs[base + 4];
#ifdef DEBUG_SIG
printk("[%s:%d] irix_setcontext(%p)\n",
current->comm, current->pid, ctx);
#endif
if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx))) {
error = -EFAULT;
goto out;
}
if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx)))
goto segv_and_exit;
if (ctx->flags & 0x02) {
err = __get_user(flags, &ctx->flags);
if (flags & 0x02) {
/* XXX sigstack garbage, todo... */
printk("Wheee, cannot do sigstack stuff in setcontext\n");
}
if (ctx->flags & 0x04) {
if (flags & 0x04) {
int i;
/* XXX extra control block stuff... todo... */
for(i = 1; i < 32; i++)
regs->regs[i] = ctx->regs[i];
regs->lo = ctx->regs[32];
regs->hi = ctx->regs[33];
regs->cp0_epc = ctx->regs[35];
for (i = 1; i < 32; i++)
err |= __get_user(regs->regs[i], &ctx->regs[i]);
err |= __get_user(regs->lo, &ctx->regs[32]);
err |= __get_user(regs->hi, &ctx->regs[33]);
err |= __get_user(regs->cp0_epc, &ctx->regs[35]);
}
if (ctx->flags & 0x08) {
if (flags & 0x08)
/* XXX fpu context, blah... */
printk("Wheee, cannot restore FPU context yet...\n");
}
current->thread.irix_oldctx = ctx->link;
error = regs->regs[2];
printk(KERN_ERR "Wheee, cannot restore FPU context yet...\n");
out:
return error;
err |= __get_user(current->thread.irix_oldctx, &ctx->link);
if (err)
goto segv_and_exit;
/*
* Don't let your children do this ...
*/
if (current_thread_info()->flags & TIF_SYSCALL_TRACE)
do_syscall_trace(regs, 1);
__asm__ __volatile__(
"move\t$29,%0\n\t"
"j\tsyscall_exit"
:/* no outputs */
:"r" (&regs));
/* Unreached */
segv_and_exit:
force_sigsegv(SIGSEGV, current);
}
struct irix_sigstack { unsigned long sp; int status; };
struct irix_sigstack {
unsigned long sp;
int status;
};
asmlinkage int irix_sigstack(struct irix_sigstack *new, struct irix_sigstack *old)
asmlinkage int irix_sigstack(struct irix_sigstack __user *new,
struct irix_sigstack __user *old)
{
int error = -EFAULT;
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigstack(%p,%p)\n",
current->comm, current->pid, new, old);
#endif
if(new) {
if (!access_ok(VERIFY_READ, new, sizeof(*new)))
goto out;
}
if(old) {
if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
goto out;
}
error = 0;
out:
return error;
}
struct irix_sigaltstack { unsigned long sp; int size; int status; };
asmlinkage int irix_sigaltstack(struct irix_sigaltstack *new,
struct irix_sigaltstack *old)
{
int error = -EFAULT;
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigaltstack(%p,%p)\n",
current->comm, current->pid, new, old);
#endif
if (new) {
if (!access_ok(VERIFY_READ, new, sizeof(*new)))
goto out;
return -EFAULT;
}
if (old) {
if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
goto out;
return -EFAULT;
}
error = 0;
out:
error = 0;
return 0;
}
return error;
struct irix_sigaltstack { unsigned long sp; int size; int status; };
asmlinkage int irix_sigaltstack(struct irix_sigaltstack __user *new,
struct irix_sigaltstack __user *old)
{
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigaltstack(%p,%p)\n",
current->comm, current->pid, new, old);
#endif
if (new)
if (!access_ok(VERIFY_READ, new, sizeof(*new)))
return -EFAULT;
if (old) {
if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
return -EFAULT;
}
return 0;
}
struct irix_procset {
int cmd, ltype, lid, rtype, rid;
};
asmlinkage int irix_sigsendset(struct irix_procset *pset, int sig)
asmlinkage int irix_sigsendset(struct irix_procset __user *pset, int sig)
{
if (!access_ok(VERIFY_READ, pset, sizeof(*pset)))
return -EFAULT;
#ifdef DEBUG_SIG
printk("[%s:%d] irix_sigsendset([%d,%d,%d,%d,%d],%d)\n",
current->comm, current->pid,

8
arch/mips/kernel/process.c
View File

@@ -38,14 +38,6 @@
#include <asm/isadep.h>
#include <asm/inst.h>
/*
* We use this if we don't have any better idle routine..
* (This to kill: kernel/platform.c.
*/
void default_idle (void)
{
}
/*
* The idle thread. There's no useful work to be done, so just try to conserve
* power and have a low exit latency (ie sit in a loop waiting for somebody to

4
arch/mips/kernel/ptrace.c
View File

@@ -103,7 +103,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
ret = -EIO;
if (copied != sizeof(tmp))
break;
ret = put_user(tmp,(unsigned long *) data);
ret = put_user(tmp,(unsigned long __user *) data);
break;
}
@@ -180,7 +180,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
ret = -EIO;
goto out_tsk;
}
ret = put_user(tmp, (unsigned long *) data);
ret = put_user(tmp, (unsigned long __user *) data);
break;
}

14
arch/mips/kernel/signal.c
View File

@@ -47,9 +47,10 @@ save_static_function(sys_sigsuspend);
__attribute_used__ noinline static int
_sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
{
sigset_t *uset, saveset, newset;
sigset_t saveset, newset;
sigset_t __user *uset;
uset = (sigset_t *) regs.regs[4];
uset = (sigset_t __user *) regs.regs[4];
if (copy_from_user(&newset, uset, sizeof(sigset_t)))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
@@ -75,7 +76,8 @@ save_static_function(sys_rt_sigsuspend);
__attribute_used__ noinline static int
_sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
{
sigset_t *unewset, saveset, newset;
sigset_t saveset, newset;
sigset_t __user *unewset;
size_t sigsetsize;
/* XXX Don't preclude handling different sized sigset_t's. */
@@ -83,7 +85,7 @@ _sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
unewset = (sigset_t *) regs.regs[4];
unewset = (sigset_t __user *) regs.regs[4];
if (copy_from_user(&newset, unewset, sizeof(newset)))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
@@ -147,8 +149,8 @@ asmlinkage int sys_sigaction(int sig, const struct sigaction *act,
asmlinkage int sys_sigaltstack(nabi_no_regargs struct pt_regs regs)
{
const stack_t *uss = (const stack_t *) regs.regs[4];
stack_t *uoss = (stack_t *) regs.regs[5];
const stack_t __user *uss = (const stack_t __user *) regs.regs[4];
stack_t __user *uoss = (stack_t __user *) regs.regs[5];
unsigned long usp = regs.regs[29];
return do_sigaltstack(uss, uoss, usp);

479
arch/mips/kernel/sysirix.c
View File

File diff suppressed because it is too large Load Diff

21
arch/mips/kernel/traps.c
View File

@@ -339,9 +339,9 @@ asmlinkage void do_be(struct pt_regs *regs)
static inline int get_insn_opcode(struct pt_regs *regs, unsigned int *opcode)
{
unsigned int *epc;
unsigned int __user *epc;
epc = (unsigned int *) regs->cp0_epc +
epc = (unsigned int __user *) regs->cp0_epc +
((regs->cp0_cause & CAUSEF_BD) != 0);
if (!get_user(*opcode, epc))
return 0;
@@ -371,7 +371,7 @@ static struct task_struct *ll_task = NULL;
static inline void simulate_ll(struct pt_regs *regs, unsigned int opcode)
{
unsigned long value, *vaddr;
unsigned long value, __user *vaddr;
long offset;
int signal = 0;
@@ -385,7 +385,8 @@ static inline void simulate_ll(struct pt_regs *regs, unsigned int opcode)
offset <<= 16;
offset >>= 16;
vaddr = (unsigned long *)((long)(regs->regs[(opcode & BASE) >> 21]) + offset);
vaddr = (unsigned long __user *)
((unsigned long)(regs->regs[(opcode & BASE) >> 21]) + offset);
if ((unsigned long)vaddr & 3) {
signal = SIGBUS;
@@ -418,7 +419,8 @@ sig:
static inline void simulate_sc(struct pt_regs *regs, unsigned int opcode)
{
unsigned long *vaddr, reg;
unsigned long __user *vaddr;
unsigned long reg;
long offset;
int signal = 0;
@@ -432,7 +434,8 @@ static inline void simulate_sc(struct pt_regs *regs, unsigned int opcode)
offset <<= 16;
offset >>= 16;
vaddr = (unsigned long *)((long)(regs->regs[(opcode & BASE) >> 21]) + offset);
vaddr = (unsigned long __user *)
((unsigned long)(regs->regs[(opcode & BASE) >> 21]) + offset);
reg = (opcode & RT) >> 16;
if ((unsigned long)vaddr & 3) {
@@ -498,7 +501,7 @@ asmlinkage void do_ov(struct pt_regs *regs)
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_addr = (void *)regs->cp0_epc;
info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
}
@@ -584,7 +587,7 @@ asmlinkage void do_bp(struct pt_regs *regs)
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_addr = (void *)regs->cp0_epc;
info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
default:
@@ -621,7 +624,7 @@ asmlinkage void do_tr(struct pt_regs *regs)
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_addr = (void *)regs->cp0_epc;
info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
default:

10
arch/mips/kernel/unaligned.c
View File

@@ -94,7 +94,7 @@ unsigned long unaligned_instructions;
#endif
static inline int emulate_load_store_insn(struct pt_regs *regs,
void *addr, unsigned long pc,
void __user *addr, unsigned int __user *pc,
unsigned long **regptr, unsigned long *newvalue)
{
union mips_instruction insn;
@@ -107,7 +107,7 @@ static inline int emulate_load_store_insn(struct pt_regs *regs,
/*
* This load never faults.
*/
__get_user(insn.word, (unsigned int *)pc);
__get_user(insn.word, pc);
switch (insn.i_format.opcode) {
/*
@@ -494,8 +494,8 @@ asmlinkage void do_ade(struct pt_regs *regs)
{
unsigned long *regptr, newval;
extern int do_dsemulret(struct pt_regs *);
unsigned int __user *pc;
mm_segment_t seg;
unsigned long pc;
/*
* Address errors may be deliberately induced by the FPU emulator to
@@ -515,7 +515,7 @@ asmlinkage void do_ade(struct pt_regs *regs)
if ((regs->cp0_badvaddr == regs->cp0_epc) || (regs->cp0_epc & 0x1))
goto sigbus;
pc = exception_epc(regs);
pc = (unsigned int __user *) exception_epc(regs);
if ((current->thread.mflags & MF_FIXADE) == 0)
goto sigbus;
@@ -526,7 +526,7 @@ asmlinkage void do_ade(struct pt_regs *regs)
seg = get_fs();
if (!user_mode(regs))
set_fs(KERNEL_DS);
if (!emulate_load_store_insn(regs, (void *)regs->cp0_badvaddr, pc,
if (!emulate_load_store_insn(regs, (void __user *)regs->cp0_badvaddr, pc,
&regptr, &newval)) {
compute_return_epc(regs);
/*