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authorBarry Song <barry.song@analog.com>2010-01-19 11:01:08 +0000
committerMike Frysinger <vapier@gentoo.org>2010-03-09 00:30:49 -0500
commit5e8d3210b5bffbe64afca9152241284a46611c7e (patch)
tree734a4ddcdcf8ad3fc7c557f4702acdbe3817bda4 /arch/blackfin
parent0531c467da6438f278e9420a30f73eea2fdb73bd (diff)
downloadop-kernel-dev-5e8d3210b5bffbe64afca9152241284a46611c7e.zip
op-kernel-dev-5e8d3210b5bffbe64afca9152241284a46611c7e.tar.gz
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>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/kernel/traps.c14
1 files changed, 11 insertions, 3 deletions
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 @@ asmlinkage notrace void trap_c(struct pt_regs *fp)
#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 @@ asmlinkage notrace void trap_c(struct pt_regs *fp)
{
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);
}
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