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, 30 deletions

diff --git a/tools/iso/kernel.soso/gdt.asm b/tools/iso/kernel.soso/gdt.asm
deleted file mode 100644
index 54c01cfa..00000000
--- a/tools/iso/kernel.soso/gdt.asm
+++ /dev/null
@@ -1,30 +0,0 @@
-[GLOBAL flushGdt]
-
-flushGdt:
-    mov eax, [esp+4] ;[esp+4] is the parametered passed
-    lgdt [eax]
-
-    mov ax, 0x10  ;0x10 is the offset to our data segment
-    mov ds, ax
-    mov es, ax
-    mov fs, ax
-    mov gs, ax
-    mov ss, ax
-    jmp 0x08:.flush ;0x08 is the offset to our code segment
-.flush:
-    ret
-
-[GLOBAL flushIdt]
-
-flushIdt:
-    mov eax, [esp+4] ;[esp+4] is the parametered passed
-    lidt [eax]
-    ret
-
-[GLOBAL flushTss]
-
-flushTss:
-    mov ax, 0x2B ;index of the TSS structure is 0x28 (5*8) and OR'ing two bits in order to set RPL 3 and we get 0x2B
-
-    ltr ax
-    ret