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banister/gist:1289619

Created October 15, 2011 14:11
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using LD_PRELOAD to override functions like rb_raise() in ruby with my own definitions in an .so
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gistfile1.txt
If you set LD_PRELOAD to the path of a shared object, that file will be loaded before any other library (including the C runtime, libc.so). So to run ls with a your special malloc() implementation, do this:
$ LD_PRELOAD=/path/to/my/malloc.so /bin/ls
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