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sigbus vs sigsegv on mprotect() exeception?
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sigbus vs sigsegv on mprotect() exeception?

  • Subject: sigbus vs sigsegv on mprotect() exeception?
  • From: Brad Parker <email@hidden>
  • Date: Sun, 26 Oct 2008 19:05:30 -0400
  • Organization: Heeltoe Consulting
Hi,

I'm running mac os 10.5.5 on an x86 cpu.  I noticed that mprotect()'d
pages throw SIGBUS for violations.

My code (which admittedly started on linux) expects SIGSEGV.

Is there any standard document which covers this behavior?  I'm guessing
that 99.99% of the world would never notice.

any thoughts on this?  what does freebsd do? or solaris?  just curious.

-brad

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