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Annotation of embedaddon/ntp/ElectricFence/README, revision 1.1

1.1     ! misho       1: This is Electric Fence 2.0.5
        !             2: 
        !             3: Electric Fence is a different kind of malloc() debugger. It uses the virtual
        !             4: memory hardware of your system to detect when software overruns the boundaries
        !             5: of a malloc() buffer. It will also detect any accesses of memory that has
        !             6: been released by free(). Because it uses the VM hardware for detection,
        !             7: Electric Fence stops your program on the first instruction that causes
        !             8: a bounds violation. It's then trivial to use a debugger to display the
        !             9: offending statement.
        !            10: 
        !            11: This version will run on:
        !            12:        Linux kernel version 1.1.83 and above. Earlier kernels have problems
        !            13:        with the memory protection implementation.
        !            14: 
        !            15:        All System V Revision 4 platforms (and possibly earlier revisions)
        !            16:        including:
        !            17:                Every 386 System V I've heard of.
        !            18:                Solaris 2.x
        !            19:                SGI IRIX 5.0 (but not 4.x)
        !            20: 
        !            21:        IBM AIX on the RS/6000.
        !            22: 
        !            23:        SunOS 4.X (using an ANSI C compiler and probably static linking).
        !            24: 
        !            25:        HP/UX 9.01, and possibly earlier versions.
        !            26: 
        !            27:        OSF 1.3 (and possibly earlier versions) on a DECalpha.
        !            28: 
        !            29: On some of these platforms, you'll have to uncomment lines in the Makefile
        !            30: that apply to your particular system.
        !            31: 
        !            32: If you test Electric Fence on a platform not mentioned here, please send me a
        !            33: report.
        !            34: 
        !            35: It will probably port to any ANSI/POSIX system that provides mmap(), and
        !            36: mprotect(), as long as mprotect() has the capability to turn off all access
        !            37: to a memory page, and mmap() can use /dev/zero or the MAP_ANONYMOUS flag
        !            38: to create virtual memory pages.
        !            39: 
        !            40: Complete information on the use of Electric Fence is in the manual page
        !            41: libefence.3 .
        !            42: 
        !            43:        Thanks
        !            44: 
        !            45:        Bruce Perens
        !            46:        Bruce@Pixar.com