In arch/sparc/kernel/traps_32.c::do_priv_instruction() we have this:
die_if_kernel("Penguin instruction from Penguin mode??!?!", regs);
If I'm not mistaken, that "??!" will be taken as a trigraph for "|" by the
preprocessor, so the final string will end up either as
"Penguin instruction from Penguin mode|?!"
which I assume is not what we want, or as the correct string but with a
warning about an ignored trigraph which I assume we don't want either. So,
in order to elliminate the trigraph but keep the original string intact I
changed it to
die_if_kernel("Penguin instruction from Penguin mode?""?!?!", regs);
I've tested with a small test program on my x86-64 host and it behaves as
I would expect, but I've not tested the actual code in
arch/sparc/kernel/traps_32.c since I have no way to compile for sparc
(which is why I submit this as a [RFC] patch).
Please take a look and apply if you agree :-)
Signed-off-by: Jesper Juhl <jj@xxxxxxxxxxxxx>
---
traps_32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index c0490c7..d99ca40 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -137,7 +137,7 @@ void do_priv_instruction(struct pt_regs *regs, unsigned long pc, unsigned long n
siginfo_t info;
if(psr & PSR_PS)
- die_if_kernel("Penguin instruction from Penguin mode??!?!", regs);
+ die_if_kernel("Penguin instruction from Penguin mode?""?!?!", regs);
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_PRVOPC;
--
Jesper Juhl <jj@xxxxxxxxxxxxx> http://www.chaosbits.net/
Don't top-post http://www.catb.org/jargon/html/T/top-post.html
Plain text mails only, please.
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