From b5a1bcbee434b843c8850a968d9a6c7541f1be9d Mon Sep 17 00:00:00 2001 From: Stuart Menefy Date: Tue, 21 Nov 2006 13:34:04 +0900 Subject: sh: Set up correct siginfo structures for page faults. Remove the previous saving of fault codes into the thread_struct as they are never used, and appeared to be inherited from x86. Signed-off-by: Stuart Menefy Signed-off-by: Paul Mundt --- arch/sh/mm/fault.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) (limited to 'arch/sh/mm/fault.c') diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 68663b8f99a..43bed2cb00e 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -26,13 +26,16 @@ extern void die(const char *,struct pt_regs *,long); * 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 writeaccess, - unsigned long address) +asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, + unsigned long writeaccess, + unsigned long address) { struct task_struct *tsk; struct mm_struct *mm; struct vm_area_struct * vma; unsigned long page; + int si_code; + siginfo_t info; #ifdef CONFIG_SH_KGDB if (kgdb_nofault && kgdb_bus_err_hook) @@ -41,6 +44,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess, tsk = current; mm = tsk->mm; + si_code = SEGV_MAPERR; /* * If we're in an interrupt or have no user @@ -65,6 +69,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess, * we can handle it.. */ good_area: + si_code = SEGV_ACCERR; if (writeaccess) { if (!(vma->vm_flags & VM_WRITE)) goto bad_area; @@ -105,9 +110,11 @@ bad_area: up_read(&mm->mmap_sem); if (user_mode(regs)) { - tsk->thread.address = address; - tsk->thread.error_code = writeaccess; - force_sig(SIGSEGV, tsk); + info.si_signo = SIGSEGV; + info.si_errno = 0; + info.si_code = si_code; + info.si_addr = (void *) address; + force_sig_info(SIGSEGV, &info, tsk); return; } @@ -166,10 +173,11 @@ do_sigbus: * Send a sigbus, regardless of whether we were in kernel * or user mode. */ - tsk->thread.address = address; - tsk->thread.error_code = writeaccess; - tsk->thread.trap_no = 14; - force_sig(SIGBUS, tsk); + info.si_signo = SIGBUS; + info.si_errno = 0; + info.si_code = BUS_ADRERR; + info.si_addr = (void *)address; + force_sig_info(SIGBUS, &info, tsk); /* Kernel mode? Handle exceptions or die */ if (!user_mode(regs)) -- cgit v1.2.3-70-g09d2