From 71e4f3812982dba2efb471283d310224e8db363e Mon Sep 17 00:00:00 2001 From: "Kartik K. Agaram" Date: Wed, 3 Mar 2021 22:09:50 -0800 Subject: 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. --- linux/translate_subx_debug | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100755 linux/translate_subx_debug (limited to 'linux/translate_subx_debug') diff --git a/linux/translate_subx_debug b/linux/translate_subx_debug new file mode 100755 index 00000000..e18eca31 --- /dev/null +++ b/linux/translate_subx_debug @@ -0,0 +1,30 @@ +#!/bin/sh +# Translate given SubX files with debug information on Linux. +# +# Mu provides 3 canonical ways to translate unsafe SubX programs: +# 0. The C++ translator 'bootstrap translate' can generate traces for +# debugging on Linux or BSD or Mac, but doesn't support any syntax sugar. +# 1. The self-hosted translator can be run natively on Linux using +# 'translate_subx'. It is fast and supports all syntax sugar, but you get no +# trace for debugging. +# 2. The self-hosted translator can be run emulated on Linux or BSD or Mac +# using 'translate_subx_emulated'. It supports all syntax sugar. However, it +# can be slow if you generate traces. +# +# This script fills in the gap above by stitching together aspects from +# multiple approaches. It translates syntax sugar natively, but emulates lower +# levels using the C++ translator. The result is complete and relatively fast +# even when generating traces. +# +# The cost: it needs Linux. There is no script to generate traces while +# running emulated on BSD or Mac. That's often impractically slow. + +set -e + +cat $* |./braces > a.braces +cat a.braces |./calls > a.calls +cat a.calls |./sigils > a.sigils + +bootstrap/bootstrap --debug translate a.sigils -o a.elf + +chmod +x a.elf -- cgit 1.4.1-2-gfad0