diff options
Diffstat (limited to 'arch/parisc/mm/fault.c')
| -rw-r--r-- | arch/parisc/mm/fault.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c index 0293588..7584a5d 100644 --- a/arch/parisc/mm/fault.c +++ b/arch/parisc/mm/fault.c @@ -142,6 +142,12 @@ int fixup_exception(struct pt_regs *regs) { const struct exception_table_entry *fix; + /* If we only stored 32bit addresses in the exception table we can drop + * out if we faulted on a 64bit address. */ + if ((sizeof(regs->iaoq[0]) > sizeof(fix->insn)) + && (regs->iaoq[0] >> 32)) + return 0; + fix = search_exception_tables(regs->iaoq[0]); if (fix) { struct exception_data *d; @@ -274,12 +280,22 @@ bad_area: } show_regs(regs); #endif - /* FIXME: actually we need to get the signo and code correct */ - si.si_signo = SIGSEGV; + switch (code) { + case 15: /* Data TLB miss fault/Data page fault */ + case 17: /* NA data TLB miss / page fault */ + case 18: /* Unaligned access - PCXS only */ + si.si_signo = SIGBUS; + si.si_code = BUS_ADRERR; + break; + case 16: /* Non-access instruction TLB miss fault */ + case 26: /* PCXL: Data memory access rights trap */ + default: + si.si_signo = SIGSEGV; + si.si_code = SEGV_MAPERR; + } si.si_errno = 0; - si.si_code = SEGV_MAPERR; si.si_addr = (void __user *) address; - force_sig_info(SIGSEGV, &si, current); + force_sig_info(si.si_signo, &si, current); return; } |