diff options
| author | Guo Ren <guoren@linux.alibaba.com> | 2020-03-31 23:45:52 +0800 |
|---|---|---|
| committer | Guo Ren <guoren@linux.alibaba.com> | 2020-04-01 00:06:40 +0800 |
| commit | 9c0e343d7654a329d1f9b53d253cbf7fb6eff85d (patch) | |
| tree | a51bfcdbb5d8191b5a1414f9b798b4f38f0e8efa /arch/csky/mm | |
| parent | dd7c983e78a28ff0b22f8bcf32a303b4f79cb318 (diff) | |
| download | linux-9c0e343d7654a329d1f9b53d253cbf7fb6eff85d.tar.gz | |
csky: Fixup get wrong psr value from phyical reg
We should get psr value from regs->psr in stack, not directly get it from phyiscal register then save the vector number in tsk->trap_no. Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Diffstat (limited to 'arch/csky/mm')
| -rw-r--r-- | arch/csky/mm/fault.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c index f76618b630f9..562c7f708749 100644 --- a/arch/csky/mm/fault.c +++ b/arch/csky/mm/fault.c @@ -179,11 +179,14 @@ bad_area: bad_area_nosemaphore: /* User mode accesses just cause a SIGSEGV */ if (user_mode(regs)) { + tsk->thread.trap_no = (regs->sr >> 16) & 0xff; force_sig_fault(SIGSEGV, si_code, (void __user *)address); return; } no_context: + tsk->thread.trap_no = (regs->sr >> 16) & 0xff; + /* Are we prepared to handle this kernel fault? */ if (fixup_exception(regs)) return; @@ -198,6 +201,8 @@ no_context: die_if_kernel("Oops", regs, write); out_of_memory: + tsk->thread.trap_no = (regs->sr >> 16) & 0xff; + /* * We ran out of memory, call the OOM killer, and return the userspace * (which will retry the fault, or kill us if we got oom-killed). @@ -206,6 +211,8 @@ out_of_memory: return; do_sigbus: + tsk->thread.trap_no = (regs->sr >> 16) & 0xff; + up_read(&mm->mmap_sem); /* Kernel mode? Handle exceptions or die */ |