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authorHelge Deller <deller@gmx.de>2013-11-07 17:08:36 +0100
committerHelge Deller <deller@gmx.de>2013-11-07 22:29:24 +0100
commit1f2048fd8bc4219db821611da305a74f4b72b3c3 (patch)
treebe8e53b15accf5a770482f1e33ea4a0904fa25f7 /arch/parisc
parent63379c135331c724d40a87b98eb62d2122981341 (diff)
parisc: signal fixup - SIGBUS vs. SIGSEGV
Clean up code to send correct signal on invalid memory accesses: Send SIGBUS instead of SIGSEGV for memory accesses outside of mmap'ed areas This fixes the mmap13 testcase from the Linux Test Project. Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/mm/fault.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index df0d32971cdf..7584a5df0fa4 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -280,12 +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;
}