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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>
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parent
0531c467da
commit
5e8d3210b5
1 changed files with 11 additions and 3 deletions
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@ -260,9 +260,7 @@ asmlinkage notrace void trap_c(struct pt_regs *fp)
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#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
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int j;
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#endif
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#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
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unsigned int cpu = raw_smp_processor_id();
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#endif
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const char *strerror = NULL;
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int sig = 0;
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siginfo_t info;
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@ -651,7 +649,17 @@ asmlinkage notrace void trap_c(struct pt_regs *fp)
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{
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info.si_signo = sig;
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info.si_errno = 0;
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info.si_addr = (void __user *)fp->pc;
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switch (trapnr) {
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case VEC_CPLB_VL:
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case VEC_MISALI_D:
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case VEC_CPLB_M:
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case VEC_CPLB_MHIT:
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info.si_addr = (void __user *)cpu_pda[cpu].dcplb_fault_addr;
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break;
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default:
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info.si_addr = (void __user *)fp->pc;
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break;
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}
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force_sig_info(sig, &info, current);
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}
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