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Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>
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Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>
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This just prints "hello world" on two cores. It contains an example of
how to initialize a multi-core system using IPIs, and a simple spin
lock.
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The --wrap feature of GNU ld supports a cleaner framework for linking in
alternative implementations of libc functions without cpp hacks.
Place wrappers in separate object files to reduce static code size.
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