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Diffstat (limited to 'arch/mips/kernel/traps.c')
-rw-r--r--arch/mips/kernel/traps.c30
1 files changed, 13 insertions, 17 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index cb8b0e2c7954..b8ea4e9d0d87 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -71,7 +71,6 @@ extern asmlinkage void handle_reserved(void);
extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
struct mips_fpu_struct *ctx, int has_fpu);
-void (*board_watchpoint_handler)(struct pt_regs *regs);
void (*board_be_init)(void);
int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
void (*board_nmi_handler_setup)(void);
@@ -88,15 +87,17 @@ static void show_raw_backtrace(unsigned long reg29)
#ifdef CONFIG_KALLSYMS
printk("\n");
#endif
-#define IS_KVA01(a) ((((unsigned int)a) & 0xc0000000) == 0x80000000)
- if (IS_KVA01(sp)) {
- while (!kstack_end(sp)) {
- addr = *sp++;
- if (__kernel_text_address(addr))
- print_ip_sym(addr);
+ while (!kstack_end(sp)) {
+ unsigned long __user *p =
+ (unsigned long __user *)(unsigned long)sp++;
+ if (__get_user(addr, p)) {
+ printk(" (Bad stack address)");
+ break;
}
- printk("\n");
+ if (__kernel_text_address(addr))
+ print_ip_sym(addr);
}
+ printk("\n");
}
#ifdef CONFIG_KALLSYMS
@@ -247,11 +248,11 @@ static void __show_regs(const struct pt_regs *regs)
/*
* Saved cp0 registers
*/
- printk("epc : %0*lx ", field, regs->cp0_epc);
- print_symbol("%s ", regs->cp0_epc);
+ printk("epc : %0*lx %pS\n", field, regs->cp0_epc,
+ (void *) regs->cp0_epc);
printk(" %s\n", print_tainted());
- printk("ra : %0*lx ", field, regs->regs[31]);
- print_symbol("%s\n", regs->regs[31]);
+ printk("ra : %0*lx %pS\n", field, regs->regs[31],
+ (void *) regs->regs[31]);
printk("Status: %08x ", (uint32_t) regs->cp0_status);
@@ -890,11 +891,6 @@ asmlinkage void do_mdmx(struct pt_regs *regs)
asmlinkage void do_watch(struct pt_regs *regs)
{
- if (board_watchpoint_handler) {
- (*board_watchpoint_handler)(regs);
- return;
- }
-
/*
* We use the watch exception where available to detect stack
* overflows.