Blackfin: fill out the signal si_addr when sending a SIGBUS/SIGSEGV
Some userspace applications use this member in diagnosing crashes. It
also makes some LTP tests pass (i.e. the Blackfin arch behaves more like
everyone else).
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 8576680..4eaca2d1 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -260,9 +260,7 @@
#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
int j;
#endif
-#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
unsigned int cpu = raw_smp_processor_id();
-#endif
const char *strerror = NULL;
int sig = 0;
siginfo_t info;
@@ -651,7 +649,17 @@
{
info.si_signo = sig;
info.si_errno = 0;
- info.si_addr = (void __user *)fp->pc;
+ switch (trapnr) {
+ case VEC_CPLB_VL:
+ case VEC_MISALI_D:
+ case VEC_CPLB_M:
+ case VEC_CPLB_MHIT:
+ info.si_addr = (void __user *)cpu_pda[cpu].dcplb_fault_addr;
+ break;
+ default:
+ info.si_addr = (void __user *)fp->pc;
+ break;
+ }
force_sig_info(sig, &info, current);
}
