codegen: Add -nostartfiles to drop the hardcoded prelude #35
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Useful for forgetful people like me.
This is useful mainly if you desire to use your own "prelude" for whatever purpose you may have. This includes, but is not limited to, prepending a prelude that is aware of the [metadata conventions](https://wiki.xxiivv.com/site/metadata.html). Note that *at this point in time* it is not possible to trivially place a prelude within the C code. The file always starts with `bss`, then `text`, making things awkward at best. It would be expected that the prelude is "bring your own" outside of what this compiler produces.
samueldr
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This is useful mainly if you desire to use your own "prelude" for
whatever purpose you may have.
This includes, but is not limited to, prepending a prelude that is aware
of the metadata conventions.
Note that at this point in time it is not possible to trivially place
a prelude within the C code. The file always starts with
bss, thentext,making things awkward at best.
It would be expected that the prelude is "bring your own" outside of
what this compiler produces.
I don't really like just adding yet another param to
codegen(), but this was the trivial way to handle this.A more proper way would be to fold all options, or codegen options, into a struct and provide that instead. This way adding options gets less verbose.
Tip: when reviewing hide whitespace changes to get a cleaner overview of the actual changes.
(Also adds a help section because we can.)