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-rw-r--r--arch/mips/kernel/traps.c21
-rw-r--r--include/asm-mips/ptrace.h4
2 files changed, 17 insertions, 8 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 632bce1..9c0c478 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -104,7 +104,7 @@ static int __init set_raw_show_trace(char *str)
__setup("raw_show_trace", set_raw_show_trace);
#endif
-static void show_backtrace(struct task_struct *task, struct pt_regs *regs)
+static void show_backtrace(struct task_struct *task, const struct pt_regs *regs)
{
unsigned long sp = regs->regs[29];
unsigned long ra = regs->regs[31];
@@ -126,7 +126,8 @@ static void show_backtrace(struct task_struct *task, struct pt_regs *regs)
* This routine abuses get_user()/put_user() to reference pointers
* with at least a bit of error checking ...
*/
-static void show_stacktrace(struct task_struct *task, struct pt_regs *regs)
+static void show_stacktrace(struct task_struct *task,
+ const struct pt_regs *regs)
{
const int field = 2 * sizeof(unsigned long);
long stackdata;
@@ -203,7 +204,7 @@ static void show_code(unsigned int __user *pc)
}
}
-void show_regs(struct pt_regs *regs)
+static void __show_regs(const struct pt_regs *regs)
{
const int field = 2 * sizeof(unsigned long);
unsigned int cause = regs->cp0_cause;
@@ -299,9 +300,17 @@ void show_regs(struct pt_regs *regs)
cpu_name_string());
}
-void show_registers(struct pt_regs *regs)
+/*
+ * FIXME: really the generic show_regs should take a const pointer argument.
+ */
+void show_regs(struct pt_regs *regs)
+{
+ __show_regs((struct pt_regs *)regs);
+}
+
+void show_registers(const struct pt_regs *regs)
{
- show_regs(regs);
+ __show_regs(regs);
print_modules();
printk("Process %s (pid: %d, threadinfo=%p, task=%p)\n",
current->comm, current->pid, current_thread_info(), current);
@@ -312,7 +321,7 @@ void show_registers(struct pt_regs *regs)
static DEFINE_SPINLOCK(die_lock);
-void __noreturn die(const char * str, struct pt_regs * regs)
+void __noreturn die(const char * str, const struct pt_regs * regs)
{
static int die_counter;
#ifdef CONFIG_MIPS_MT_SMTC
diff --git a/include/asm-mips/ptrace.h b/include/asm-mips/ptrace.h
index 85b4436..786f7e3 100644
--- a/include/asm-mips/ptrace.h
+++ b/include/asm-mips/ptrace.h
@@ -86,9 +86,9 @@ struct pt_regs {
extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);
-extern NORET_TYPE void die(const char *, struct pt_regs *) ATTRIB_NORET;
+extern NORET_TYPE void die(const char *, const struct pt_regs *) ATTRIB_NORET;
-static inline void die_if_kernel(const char *str, struct pt_regs *regs)
+static inline void die_if_kernel(const char *str, const struct pt_regs *regs)
{
if (unlikely(!user_mode(regs)))
die(str, regs);