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This allows printing in the case e.g. a page fault happens
during a log statement
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This was supposed to be the foundation for some kind of pre-kernel
environment, but nobody is working on it right now, so let's move
everything back into the kernel and remove all the confusion.
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As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.
For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.
Going forward, all new source files should include a license header.
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Turns out we can use abi::__cxa_demangle() for this, and all we need to
provide is sprintf(), realloc() and free(), so this patch exposes them.
We now have fully demangled C++ backtraces :^)
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This triggered a stack overflow because ubsan can call kprintf() at any
time, even before Console is initialized.
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serial_debug will output all the kprintf and dbgprintf data to COM1 at
8-N-1 57600 baud. this is particularly useful for debugging the boot
process on live hardware.
Note: it must be the first parameter in the boot cmdline.
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This is very handy for the DebugLogStream implementation, among others. :^)
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This makes it easy to distinguish kernel/userspace dbgprintf()'s. :^)
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This will allow us to implement different behaviors depending on the role
of the descriptor a File is being accessed through.
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The scheduler now operates on threads, rather than on processes.
Each process has a main thread, and can have any number of additional
threads. The process exits when the main thread exits.
This patch doesn't actually spawn any additional threads, it merely
does all the plumbing needed to make it possible. :^)
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This is no longer needed as the Kernel can stand on its own legs now
and there won't be any conflict with host system data types.
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This is much nicer than grabbing directly at 'current' inside a read().
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The SpinLock was all backwards and didn't actually work. Fixing it exposed
how wrong most of the locking here is.
I need to come up with a better granularity here.
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Use it to make "ls" output a bit better. Also sys$spawn now fails with EACCES
if the path is not a file that's executable by the current uid/gid.
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This only has second accuracy right now, I'll work out subseconds later.
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