5 files changed, 42 insertions, 30 deletions

diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index dd4418d846e9..983d438b14b6 100644
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -24,7 +24,7 @@ aflags-$(CONFIG_ISA_M32R)	+= -DNO_FPU -Wa,-no-bitinst
 CFLAGS += $(cflags-y)
 AFLAGS += $(aflags-y)
 
-CHECKFLAGS      := $(CHECK) -D__m32r__
+CHECKFLAGS      += -D__m32r__ -D__BIG_ENDIAN__=1
 
 head-y  := arch/m32r/kernel/head.o arch/m32r/kernel/init_task.o
 
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index dddbf6b5ed2c..85920fb8d08c 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -681,6 +681,15 @@ ENTRY(debug_trap)
         bl      do_debug_trap
         bra     error_code
 
+ENTRY(ill_trap)
+        /* void ill_trap(void) */
+        SWITCH_TO_KERNEL_STACK
+        SAVE_ALL
+        ldi     r1, #0                          ; error_code ; FIXME
+        mv      r0, sp                          ; pt_regs
+        bl      do_ill_trap
+        bra     error_code
+
 
 /* Cache flushing handler */
 ENTRY(cache_flushing_handler)
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index a4576ac7e870..8b1f6eb76870 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -275,12 +275,14 @@ static void flush_tlb_all_ipi(void *info)
  *==========================================================================*/
 void smp_flush_tlb_mm(struct mm_struct *mm)
 {
-        int cpu_id = smp_processor_id();
+        int cpu_id;
         cpumask_t cpu_mask;
-        unsigned long *mmc = &mm->context[cpu_id];
+        unsigned long *mmc;
         unsigned long flags;
 
         preempt_disable();
+        cpu_id = smp_processor_id();
+        mmc = &mm->context[cpu_id];
         cpu_mask = mm->cpu_vm_mask;
         cpu_clear(cpu_id, cpu_mask);
 
@@ -343,12 +345,14 @@ void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
 {
         struct mm_struct *mm = vma->vm_mm;
-        int cpu_id = smp_processor_id();
+        int cpu_id;
         cpumask_t cpu_mask;
-        unsigned long *mmc = &mm->context[cpu_id];
+        unsigned long *mmc;
         unsigned long flags;
 
         preempt_disable();
+        cpu_id = smp_processor_id();
+        mmc = &mm->context[cpu_id];
         cpu_mask = mm->cpu_vm_mask;
         cpu_clear(cpu_id, cpu_mask);
 
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 01922271d17e..5fe8ed6d62dc 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -5,8 +5,6 @@
  *                            Hitoshi Yamamoto
  */
 
-/* $Id$ */
-
 /*
  * 'traps.c' handles hardware traps and faults after we have saved some
  * state in 'entry.S'.
@@ -35,6 +33,7 @@ asmlinkage void ei_handler(void);
 asmlinkage void rie_handler(void);
 asmlinkage void debug_trap(void);
 asmlinkage void cache_flushing_handler(void);
+asmlinkage void ill_trap(void);
 
 #ifdef CONFIG_SMP
 extern void smp_reschedule_interrupt(void);
@@ -77,22 +76,22 @@ void	set_eit_vector_entries(void)
         eit_vector[5] = BRA_INSN(default_eit_handler, 5);
         eit_vector[8] = BRA_INSN(rie_handler, 8);
         eit_vector[12] = BRA_INSN(alignment_check, 12);
-        eit_vector[16] = 0xff000000UL;
+        eit_vector[16] = BRA_INSN(ill_trap, 16);
         eit_vector[17] = BRA_INSN(debug_trap, 17);
         eit_vector[18] = BRA_INSN(system_call, 18);
-        eit_vector[19] = 0xff000000UL;
-        eit_vector[20] = 0xff000000UL;
-        eit_vector[21] = 0xff000000UL;
-        eit_vector[22] = 0xff000000UL;
-        eit_vector[23] = 0xff000000UL;
-        eit_vector[24] = 0xff000000UL;
-        eit_vector[25] = 0xff000000UL;
-        eit_vector[26] = 0xff000000UL;
-        eit_vector[27] = 0xff000000UL;
+        eit_vector[19] = BRA_INSN(ill_trap, 19);
+        eit_vector[20] = BRA_INSN(ill_trap, 20);
+        eit_vector[21] = BRA_INSN(ill_trap, 21);
+        eit_vector[22] = BRA_INSN(ill_trap, 22);
+        eit_vector[23] = BRA_INSN(ill_trap, 23);
+        eit_vector[24] = BRA_INSN(ill_trap, 24);
+        eit_vector[25] = BRA_INSN(ill_trap, 25);
+        eit_vector[26] = BRA_INSN(ill_trap, 26);
+        eit_vector[27] = BRA_INSN(ill_trap, 27);
         eit_vector[28] = BRA_INSN(cache_flushing_handler, 28);
-        eit_vector[29] = 0xff000000UL;
-        eit_vector[30] = 0xff000000UL;
-        eit_vector[31] = 0xff000000UL;
+        eit_vector[29] = BRA_INSN(ill_trap, 29);
+        eit_vector[30] = BRA_INSN(ill_trap, 30);
+        eit_vector[31] = BRA_INSN(ill_trap, 31);
         eit_vector[32] = BRA_INSN(ei_handler, 32);
         eit_vector[64] = BRA_INSN(pie_handler, 64);
 #ifdef CONFIG_MMU
@@ -286,7 +285,8 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
 
 DO_ERROR( 1, SIGTRAP, "debug trap", debug_trap)
 DO_ERROR_INFO(0x20, SIGILL,  "reserved instruction ", rie_handler, ILL_ILLOPC, regs->bpc)
-DO_ERROR_INFO(0x100, SIGILL,  "privilege instruction", pie_handler, ILL_PRVOPC, regs->bpc)
+DO_ERROR_INFO(0x100, SIGILL,  "privileged instruction", pie_handler, ILL_PRVOPC, regs->bpc)
+DO_ERROR_INFO(-1, SIGILL,  "illegal trap", ill_trap, ILL_ILLTRP, regs->bpc)
 
 extern int handle_unaligned_access(unsigned long, struct pt_regs *);
 
@@ -329,4 +329,3 @@ asmlinkage void do_alignment_check(struct pt_regs *regs, long error_code)
                 set_fs(oldfs);
         }
 }
-
diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
index 6c6855f1aa05..ce16bbe26a52 100644
--- a/arch/m32r/lib/usercopy.c
+++ b/arch/m32r/lib/usercopy.c
@@ -13,7 +13,7 @@
 #include <asm/uaccess.h>
 
 unsigned long
-__generic_copy_to_user(void *to, const void *from, unsigned long n)
+__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
 {
         prefetch(from);
         if (access_ok(VERIFY_WRITE, to, n))
@@ -22,7 +22,7 @@ __generic_copy_to_user(void *to, const void *from, unsigned long n)
 }
 
 unsigned long
-__generic_copy_from_user(void *to, const void *from, unsigned long n)
+__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
 {
         prefetchw(to);
         if (access_ok(VERIFY_READ, from, n))
@@ -111,7 +111,7 @@ do {									\
 #endif /* CONFIG_ISA_DUAL_ISSUE */
 
 long
-__strncpy_from_user(char *dst, const char *src, long count)
+__strncpy_from_user(char *dst, const char __user *src, long count)
 {
         long res;
         __do_strncpy_from_user(dst, src, count, res);
@@ -119,7 +119,7 @@ __strncpy_from_user(char *dst, const char *src, long count)
 }
 
 long
-strncpy_from_user(char *dst, const char *src, long count)
+strncpy_from_user(char *dst, const char __user *src, long count)
 {
         long res = -EFAULT;
         if (access_ok(VERIFY_READ, src, 1))
@@ -222,7 +222,7 @@ do {									\
 #endif /* not CONFIG_ISA_DUAL_ISSUE */
 
 unsigned long
-clear_user(void *to, unsigned long n)
+clear_user(void __user *to, unsigned long n)
 {
         if (access_ok(VERIFY_WRITE, to, n))
                 __do_clear_user(to, n);
@@ -230,7 +230,7 @@ clear_user(void *to, unsigned long n)
 }
 
 unsigned long
-__clear_user(void *to, unsigned long n)
+__clear_user(void __user *to, unsigned long n)
 {
         __do_clear_user(to, n);
         return n;
@@ -244,7 +244,7 @@ __clear_user(void *to, unsigned long n)
 
 #ifdef CONFIG_ISA_DUAL_ISSUE
 
-long strnlen_user(const char *s, long n)
+long strnlen_user(const char __user *s, long n)
 {
         unsigned long mask = -__addr_ok(s);
         unsigned long res;
@@ -313,7 +313,7 @@ long strnlen_user(const char *s, long n)
 
 #else /* not CONFIG_ISA_DUAL_ISSUE */
 
-long strnlen_user(const char *s, long n)
+long strnlen_user(const char __user *s, long n)
 {
         unsigned long mask = -__addr_ok(s);
         unsigned long res;