7842 - new directory organization

Baremetal is now the default build target and therefore has its sources
at the top-level. Baremetal programs build using the phase-2 Mu toolchain
that requires a Linux kernel. This phase-2 codebase which used to be at
the top-level is now under the linux/ directory. Finally, the phase-2 toolchain,
while self-hosting, has a way to bootstrap from a C implementation, which
is now stored in linux/bootstrap. The bootstrap C implementation uses some
literate programming tools that are now in linux/bootstrap/tools.

So the whole thing has gotten inverted. Each directory should build one
artifact and include the main sources (along with standard library). Tools
used for building it are relegated to sub-directories, even though those
tools are often useful in their own right, and have had lots of interesting
programs written using them.

A couple of things have gotten dropped in this process:
  - I had old ways to run on just a Linux kernel, or with a Soso kernel.
    No more.
  - I had some old tooling for running a single test at the cursor. I haven't
    used that lately. Maybe I'll bring it back one day.

The reorg isn't done yet. Still to do:
  - redo documentation everywhere. All the README files, all other markdown,
    particularly vocabulary.md.
  - clean up how-to-run comments at the start of programs everywhere
  - rethink what to do with the html/ directory. Do we even want to keep
    supporting it?

In spite of these shortcomings, all the scripts at the top-level, linux/
and linux/bootstrap are working. The names of the scripts also feel reasonable.
This is a good milestone to take stock at.

1 files changed, 0 insertions, 39 deletions

diff --git a/apps/print-file.mu b/apps/print-file.mu
deleted file mode 100644
index 57e044dc..00000000
--- a/apps/print-file.mu
+++ /dev/null
@@ -1,39 +0,0 @@
-# accept a filename on the commandline, read it and print it out to screen
-# only ascii right now, just like the rest of Mu
-#
-# To run:
-#   $ ./translate_mu apps/print-file.mu
-#   $ echo abc > x
-#   $ ./a.elf x
-#   abc
-
-fn main _args: (addr array addr array byte) -> _/ebx: int {
-  var args/eax: (addr array addr array byte) <- copy _args
-  var n/ecx: int <- length args
-  compare n, 1
-  {
-    break-if->
-    print-string 0/screen, "usage: cat <filename>\n"
-    return 0
-  }
-  {
-    break-if-<=
-    var filename/edx: (addr addr array byte) <- index args 1
-    var in: (handle buffered-file)
-    {
-      var addr-in/eax: (addr handle buffered-file) <- address in
-      open *filename, 0/read-only, addr-in
-    }
-    var _in-addr/eax: (addr buffered-file) <- lookup in
-    var in-addr/ecx: (addr buffered-file) <- copy _in-addr
-    {
-      var c/eax: byte <- read-byte-buffered in-addr
-      compare c, 0xffffffff/end-of-file
-      break-if-=
-      var g/eax: grapheme <- copy c
-      print-grapheme 0/screen, g
-      loop
-    }
-  }
-  return 0
-}