* Copyright (C) 1994 - 2000 Ralf Baechle
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
*/
+#include <linux/cache.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/suspend.h>
#include <linux/compiler.h>
+#include <asm/abi.h>
#include <asm/asm.h>
#include <linux/bitops.h>
#include <asm/cacheflush.h>
#include <asm/ucontext.h>
#include <asm/system.h>
#include <asm/fpu.h>
+#include <asm/war.h>
#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3)
extern void __put_sigset_unknown_nsig(void);
extern void __get_sigset_unknown_nsig(void);
-static inline int put_sigset(const sigset_t *kbuf, compat_sigset_t *ubuf)
+static inline int put_sigset(const sigset_t *kbuf, compat_sigset_t __user *ubuf)
{
int err = 0;
if (!access_ok(VERIFY_READ, act, sizeof(*act)))
return -EFAULT;
err |= __get_user(handler, &act->sa_handler);
- new_ka.sa.sa_handler = (void*)(s64)handler;
+ new_ka.sa.sa_handler = (void __user *)(s64)handler;
err |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
err |= __get_user(mask, &act->sa_mask.sig[0]);
if (err)
asmlinkage int sys32_sigaltstack(nabi_no_regargs struct pt_regs regs)
{
- const stack32_t *uss = (const stack32_t *) regs.regs[4];
- stack32_t *uoss = (stack32_t *) regs.regs[5];
+ const stack32_t __user *uss = (const stack32_t __user *) regs.regs[4];
+ stack32_t __user *uoss = (stack32_t __user *) regs.regs[5];
unsigned long usp = regs.regs[29];
stack_t kss, koss;
int ret, err = 0;
}
set_fs (KERNEL_DS);
- ret = do_sigaltstack(uss ? &kss : NULL , uoss ? &koss : NULL, usp);
+ ret = do_sigaltstack(uss ? (stack_t __user *)&kss : NULL,
+ uoss ? (stack_t __user *)&koss : NULL, usp);
set_fs (old_fs);
if (!ret && uoss) {
return ret;
}
-static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 *sc)
+static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 __user *sc)
{
+ u32 used_math;
int err = 0;
- __u32 used_math;
+ s32 treg;
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
err |= __get_user(regs->cp0_epc, &sc->sc_pc);
err |= __get_user(regs->hi, &sc->sc_mdhi);
err |= __get_user(regs->lo, &sc->sc_mdlo);
+ if (cpu_has_dsp) {
+ err |= __get_user(treg, &sc->sc_hi1); mthi1(treg);
+ err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg);
+ err |= __get_user(treg, &sc->sc_hi2); mthi2(treg);
+ err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg);
+ err |= __get_user(treg, &sc->sc_hi3); mthi3(treg);
+ err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
+ err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
+ }
#define restore_gp_reg(i) do { \
err |= __get_user(regs->regs[i], &sc->sc_regs[i]); \
struct sigframe {
u32 sf_ass[4]; /* argument save space for o32 */
+#if ICACHE_REFILLS_WORKAROUND_WAR
+ u32 sf_pad[2];
+#else
u32 sf_code[2]; /* signal trampoline */
+#endif
struct sigcontext32 sf_sc;
sigset_t sf_mask;
+#if ICACHE_REFILLS_WORKAROUND_WAR
+ u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
+#endif
};
struct rt_sigframe32 {
u32 rs_ass[4]; /* argument save space for o32 */
+#if ICACHE_REFILLS_WORKAROUND_WAR
+ u32 rs_pad[2];
+#else
u32 rs_code[2]; /* signal trampoline */
+#endif
compat_siginfo_t rs_info;
struct ucontext32 rs_uc;
+#if ICACHE_REFILLS_WORKAROUND_WAR
+ u32 rs_code[8] __attribute__((aligned(32))); /* signal trampoline */
+#endif
};
-int copy_siginfo_to_user32(compat_siginfo_t *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
{
int err;
err |= __put_user(from->si_uid, &to->si_uid);
break;
case __SI_FAULT >> 16:
- err |= __put_user((long)from->si_addr, &to->si_addr);
+ err |= __put_user((unsigned long)from->si_addr, &to->si_addr);
break;
case __SI_POLL >> 16:
err |= __put_user(from->si_band, &to->si_band);
__attribute_used__ noinline static void
_sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
{
- struct sigframe *frame;
+ struct sigframe __user *frame;
sigset_t blocked;
- frame = (struct sigframe *) regs.regs[29];
+ frame = (struct sigframe __user *) regs.regs[29];
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
if (__copy_from_user(&blocked, &frame->sf_mask, sizeof(blocked)))
/*
* Don't let your children do this ...
*/
- if (current_thread_info()->flags & TIF_SYSCALL_TRACE)
- do_syscall_trace(®s, 1);
__asm__ __volatile__(
"move\t$29, %0\n\t"
"j\tsyscall_exit"
__attribute_used__ noinline static void
_sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
{
- struct rt_sigframe32 *frame;
+ struct rt_sigframe32 __user *frame;
mm_segment_t old_fs;
sigset_t set;
stack_t st;
s32 sp;
- frame = (struct rt_sigframe32 *) regs.regs[29];
+ frame = (struct rt_sigframe32 __user *) regs.regs[29];
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
if (__copy_from_user(&set, &frame->rs_uc.uc_sigmask, sizeof(set)))
call it and ignore errors. */
old_fs = get_fs();
set_fs (KERNEL_DS);
- do_sigaltstack(&st, NULL, regs.regs[29]);
+ do_sigaltstack((stack_t __user *)&st, NULL, regs.regs[29]);
set_fs (old_fs);
/*
}
static inline int setup_sigcontext32(struct pt_regs *regs,
- struct sigcontext32 *sc)
+ struct sigcontext32 __user *sc)
{
int err = 0;
err |= __put_user(regs->hi, &sc->sc_mdhi);
err |= __put_user(regs->lo, &sc->sc_mdlo);
- err |= __put_user(regs->cp0_cause, &sc->sc_cause);
- err |= __put_user(regs->cp0_badvaddr, &sc->sc_badvaddr);
+ if (cpu_has_dsp) {
+ err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
+ err |= __put_user(mfhi1(), &sc->sc_hi1);
+ err |= __put_user(mflo1(), &sc->sc_lo1);
+ err |= __put_user(mfhi2(), &sc->sc_hi2);
+ err |= __put_user(mflo2(), &sc->sc_lo2);
+ err |= __put_user(mfhi3(), &sc->sc_hi3);
+ err |= __put_user(mflo3(), &sc->sc_lo3);
+ }
err |= __put_user(!!used_math(), &sc->sc_used_math);
/*
* Determine which stack to use..
*/
-static inline void *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
- size_t frame_size)
+static inline void __user *get_sigframe(struct k_sigaction *ka,
+ struct pt_regs *regs,
+ size_t frame_size)
{
unsigned long sp;
if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0))
sp = current->sas_ss_sp + current->sas_ss_size;
- return (void *)((sp - frame_size) & ALMASK);
+ return (void __user *)((sp - frame_size) & ALMASK);
}
-static inline void setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
- int signr, sigset_t *set)
+int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set)
{
- struct sigframe *frame;
+ struct sigframe __user *frame;
int err = 0;
frame = get_sigframe(ka, regs, sizeof(*frame));
current->comm, current->pid,
frame, regs->cp0_epc, frame->sf_code);
#endif
- return;
+ return 0;
give_sigsegv:
force_sigsegv(signr, current);
+ return -EFAULT;
}
-static inline void setup_rt_frame(struct k_sigaction * ka,
- struct pt_regs *regs, int signr,
- sigset_t *set, siginfo_t *info)
+int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set, siginfo_t *info)
{
- struct rt_sigframe32 *frame;
+ struct rt_sigframe32 __user *frame;
int err = 0;
s32 sp;
current->comm, current->pid,
frame, regs->cp0_epc, frame->rs_code);
#endif
- return;
+ return 0;
give_sigsegv:
force_sigsegv(signr, current);
+ return -EFAULT;
}
-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 ERESTART_RESTARTBLOCK:
case ERESTARTNOHAND:
regs->regs[0] = 0; /* Don't deal with this again. */
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame(ka, regs, sig, oldset, info);
+ ret = current->thread.abi->setup_rt_frame(ka, regs, sig, oldset, info);
else
- setup_frame(ka, regs, sig, oldset);
+ ret = current->thread.abi->setup_frame(ka, regs, sig, oldset);
spin_lock_irq(¤t->sighand->siglock);
sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask);
sigaddset(¤t->blocked,sig);
recalc_sigpending();
spin_unlock_irq(¤t->sighand->siglock);
+
+ return ret;
}
int do_signal32(sigset_t *oldset, struct pt_regs *regs)
oldset = ¤t->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:
/*
}
asmlinkage int sys32_rt_sigaction(int sig, const struct sigaction32 *act,
- struct sigaction32 *oact,
+ struct sigaction32 __user *oact,
unsigned int sigsetsize)
{
struct k_sigaction new_sa, old_sa;
if (!access_ok(VERIFY_READ, act, sizeof(*act)))
return -EFAULT;
err |= __get_user(handler, &act->sa_handler);
- new_sa.sa.sa_handler = (void*)(s64)handler;
+ new_sa.sa.sa_handler = (void __user *)(s64)handler;
err |= __get_user(new_sa.sa.sa_flags, &act->sa_flags);
err |= get_sigset(&new_sa.sa.sa_mask, &act->sa_mask);
if (err)
}
asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t *set,
- compat_sigset_t *oset, unsigned int sigsetsize)
+ compat_sigset_t __user *oset, unsigned int sigsetsize)
{
sigset_t old_set, new_set;
int ret;
return -EFAULT;
set_fs (KERNEL_DS);
- ret = sys_rt_sigprocmask(how, set ? &new_set : NULL,
- oset ? &old_set : NULL, sigsetsize);
+ ret = sys_rt_sigprocmask(how, set ? (sigset_t __user *)&new_set : NULL,
+ oset ? (sigset_t __user *)&old_set : NULL,
+ sigsetsize);
set_fs (old_fs);
if (!ret && oset && put_sigset(&old_set, oset))
return ret;
}
-asmlinkage int sys32_rt_sigpending(compat_sigset_t *uset,
+asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
unsigned int sigsetsize)
{
int ret;
mm_segment_t old_fs = get_fs();
set_fs (KERNEL_DS);
- ret = sys_rt_sigpending(&set, sigsetsize);
+ ret = sys_rt_sigpending((sigset_t __user *)&set, sigsetsize);
set_fs (old_fs);
if (!ret && put_sigset(&set, uset))
return ret;
}
-asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t *uinfo)
+asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
{
siginfo_t info;
int ret;
copy_from_user (info._sifields._pad, uinfo->_sifields._pad, SI_PAD_SIZE))
return -EFAULT;
set_fs (KERNEL_DS);
- ret = sys_rt_sigqueueinfo(pid, sig, &info);
+ ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info);
set_fs (old_fs);
return ret;
}
git.openpandora.org / pandora-kernel.git / blobdiff