diff options
Diffstat (limited to 'arch/mips/mm/fault.c')
| -rw-r--r-- | arch/mips/mm/fault.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index b78f7d9..783ad00 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c @@ -16,8 +16,8 @@ #include <linux/mman.h> #include <linux/mm.h> #include <linux/smp.h> -#include <linux/vt_kern.h> /* For unblank_screen() */ #include <linux/module.h> +#include <linux/kprobes.h> #include <asm/branch.h> #include <asm/mmu_context.h> @@ -25,13 +25,14 @@ #include <asm/uaccess.h> #include <asm/ptrace.h> #include <asm/highmem.h> /* For VMALLOC_END */ +#include <linux/kdebug.h> /* * This routine handles page faults. It determines the address, * and the problem, and then passes it off to one of the appropriate * routines. */ -asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, +asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long write, unsigned long address) { struct vm_area_struct * vma = NULL; @@ -47,6 +48,17 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, field, regs->cp0_epc); #endif +#ifdef CONFIG_KPROBES + /* + * This is to notify the fault handler of the kprobes. The + * exception code is redundant as it is also carried in REGS, + * but we pass it anyhow. + */ + if (notify_die(DIE_PAGE_FAULT, "page fault", regs, -1, + (regs->cp0_cause >> 2) & 0x1f, SIGSEGV) == NOTIFY_STOP) + return; +#endif + info.si_code = SEGV_MAPERR; /* |