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| author |   Stuart Menefy <stuart.menefy@st.com> | 2006-11-21 13:34:04 +0900 |
|---|---|---|
| committer |   Paul Mundt <lethal@linux-sh.org> | 2006-12-06 10:45:38 +0900 |
| commit | b5a1bcbee434b843c8850a968d9a6c7541f1be9d (patch) | |
| tree | 2745f5efa2b4d6dfe18f4f186738612f0e77f79c /arch/sh/mm/fault.c | |
| parent | sh: gcc4 support. (diff) | |
| download | linux-dev-b5a1bcbee434b843c8850a968d9a6c7541f1be9d.tar.xz linux-dev-b5a1bcbee434b843c8850a968d9a6c7541f1be9d.zip | |
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 <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/mm/fault.c')
| -rw-r--r-- | arch/sh/mm/fault.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 68663b8f99ae..43bed2cb00e3 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)) |