2016-07-22 20:12:05 +00:00
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-*-mode:org-*-
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2016-10-10 21:24:44 +00:00
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2017-04-02 15:01:29 +00:00
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* SETUP
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guix environment -l guix.scm #64 bit + 32bit
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guix environment --system=i686-linux -l guix.scm #32 bit only
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2017-05-28 16:32:53 +00:00
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* BUILD
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There are two major modes to build Mes: true bootstrap and
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development.
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** DEVELOPMENT BUILD
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To help development we assume ./configure sets these variables for make
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CC -- gcc
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CC32 -- i686-unknown-linux-gnu-gcc (or on x86, also gcc)
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GUILE -- guile
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MES -- unset
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Mes is supposed to serve as a full equivalent for GUILE, however mes is much, much
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slower than guile. That's why we usually don't use mes during development.
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gcc is used to verify the sanity of our C sources.
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i686-unknown-linux-gnu-gcc is used to compare hex/assembly, to test
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2017-06-03 10:11:57 +00:00
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the gcc variant of mlbic: mlibc/libc-gcc.c and steal ideas.
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2017-05-28 16:32:53 +00:00
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guile is used to develop mescc, the C compiler in Scheme that during
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bootstrapping will be executed by mes.
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** BOOTSTRAP BUILD
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In bootstrap mode, we don't have gcc (CC), we don't have pa 32 bit gcc
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(CC32), we have no guile (GUILE)...but we should have a bootstrap mes
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(MES). FIXME.
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mes is built from src/*.c and some out/src/*.h files that are snarfed from
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src/*.c by build-aux/mes-snarf.scm.
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Also, during bootstrap we don't have make. Running `make build-scripts'
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generates several recipies of sh build scripts in out/.
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2017-03-29 06:05:18 +00:00
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* ROADMAP
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2017-04-02 15:01:29 +00:00
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** TODO
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*** release 0.x, unsorted
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- discuss full source bootstrap strategy on guile-user with Jeremiah
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Orians (stage0+) Luca Saiu (GNU Epsilon).
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- fix bugs
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2017-03-29 06:05:18 +00:00
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- produce intermediate annotated assembly-like mes.S
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2017-04-02 15:01:29 +00:00
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- and/or: connect to OriansJ's stage0...LISP bootstrapping tools
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- and/or: connect to GNU Epsilon's VM
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- and/or: translate Mes.c interpreter into VM
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- and/or: compile Scheme to C, rewrite Mes.c into Mes.scm.
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2017-03-29 06:05:18 +00:00
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- real module support, bonus for supporting Guile's define-module/define-public syntax
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- get full source syntax-case up (Andre van Tonder?) OR drop
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psyntax/syntax-case and rewrite Nyacc without syntax-case+R7RS Ellipsis
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- support regexp OR rewrite Nyacc without regexps
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- split-off Guile C compiler as standalone Guile project, still
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respecting no-syntax-case bootstrap requirement
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*** Compile the [[https://en.wikipedia.org/wiki/Tiny_C_Compiler][Tiny C Compiler]]
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- build tcc (tinycc)
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2017-04-02 15:01:29 +00:00
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*** release 1.0
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2017-03-29 06:05:18 +00:00
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- work to replace GuixSD's bootstrap binaries for x86
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- more architectures?
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** DONE
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2017-04-02 15:01:29 +00:00
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** 0.5: Mutual self-hosting Scheme interpreter and C compiler: mes.c and mescc,
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Support call-with-current-continuation, refactor catch/throw
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2017-03-29 06:05:18 +00:00
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** 0.4: Support Nyacc, Gcc-compiled Mes compiles minimal main.c using nyacc
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** 0.3: Garbage collector
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** 0.2: Support psyntax
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** 0.1: Mes eval/apply feature complete; support syntax-rules, compile main.c using LALR, dump ELF
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2016-12-24 16:22:34 +00:00
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* Bugs
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2017-04-02 15:01:29 +00:00
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** eval_apply/gc + Nyacc bug
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scripts/messc.mes intermittently exposes a bug in eval_apply/gc when
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Nyacc parses mes.c-sized source. Running
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MES_MAX_ARENA=<another-size> scripts/mescc.mes
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may [un]cover the bug. So there is probably some eval_apply-construct
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that Nyacc uses, possiblby indirectly via with-fluid, like (call/cc,
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call-with-current-continuation), that breaks when GC triggers at the
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wrong time.
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** mescc can only compile itself, it cannot compile tcc, gcc or guile
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** mes.mes cannot read sexps, only --dump's, mes.mes cannot --dump
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** Bootstrap binary mes is too big and opaque to be considered source
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68kB ELF binary which can be disassembled (objdump -d mes.mes).
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** Psyntax is too big and opaque to be considered source
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And needs a patched Guile-1.8 to [re]generate.
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2017-04-01 13:06:07 +00:00
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** test/match.test ("nyacc-simple"): hygiene problem in match
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2017-04-02 15:01:29 +00:00
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** Performance
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*** mes is slow
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*** The Scheme reader is very slow.
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*** mescc is slow
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**** compiling mes.c takes mescc.mes 2h30'
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mescc.scm which runs on Guile takes 30"
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2016-12-24 16:22:34 +00:00
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** Fluids are a hack for Nyacc.
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*** Translate C-prototype mes.c into annotated hex?
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2017-01-22 13:16:22 +00:00
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One idea is to use OriansJ's amazing self-hosting [[https://github.com/oriansj/stage0][stage0]] hex assembler
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2016-10-15 09:54:24 +00:00
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and minimal bootstrap binaries and rewrite the mes.c core to directly
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bootstrap into Scheme.
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2016-12-24 16:22:34 +00:00
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*** Rewrite mes.c in Schemy/Sexp-C and generate annotated hex?
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Another idea (thanks Rutger!) is to rewrite the mes.c core in a s-exp
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2016-11-02 14:35:32 +00:00
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C/Assembly variant and thave mescc produce the simple, annotated
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2016-10-15 09:54:24 +00:00
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bootstrap binary.
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2016-12-24 16:22:34 +00:00
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*** Compile the [[https://en.wikipedia.org/wiki/Tiny_C_Compiler][Tiny C Compiler]]
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2016-10-16 12:00:40 +00:00
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2017-04-02 15:01:29 +00:00
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** Build tools do not run on mes
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*** configure needs Bash, Guile
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*** GNUmakefile needs Bash, Guile
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*** build-aux/mes-snarf.scm needs Guile
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*** build-aux/git-changelog needs Perl
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2016-10-15 09:54:24 +00:00
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* OLD: Booting from LISP-1.5 into Mes
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2016-07-22 20:12:05 +00:00
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Mes started out experimenting with booting from a hex-coded minimal
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2016-10-15 09:54:24 +00:00
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LISP-1.5 (prototype in mes.c), into an almost-RRS Scheme.
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2016-07-22 20:12:05 +00:00
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When EOF is read, the LISP-1.5 machine calls loop2 from loop2.mes,
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which reads the rest of stdin and takes over control. The functions
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readenv, eval and apply-env in mes.mes introduced define, define-macro
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quasiquote and macro expansion.
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While this works, it's amazingly slow. We implemented a full reader
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in mes.c, which makes running mes:apply-env mes:eval somewhat
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bearable, still over 1000x slower than running mes.c.
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2016-10-15 09:54:24 +00:00
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Bootstrapping has been removed and mes.c implements enough of RRS to
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2016-07-22 20:12:05 +00:00
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run a macro-based define-syntax and syntax-rules.
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loop.mes and mes.mes are unused and lagging behind. Probably it's not
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worth considering this route without a VM. GNU Epsilon is taking the
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more usual VM-route to provide multiple personas. While that sounds
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2016-10-15 09:54:24 +00:00
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neat, Lisp/Scheme, bootstrapping and trusted binaries are probably not
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in scope as there is no mention of such things; only ML is mentioned
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while Guile is used for bootstrapping.
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2016-07-22 20:12:05 +00:00
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2016-10-15 09:54:24 +00:00
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* Assorted ideas and info
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2017-01-22 13:16:22 +00:00
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** Using GDB on assembly/a.out
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info registers
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p/x $eax
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p/x $edx
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set disassemble-next-line
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gdb-display-disassembly-buffer
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b *0x804a79d
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** Create memory dump with 32 bit Gcc compiled Mes
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core: Always include reader.c, drop binary read-0-32.mo dependency.
* module/language/c99/compiler.mes (c99-input->full-ast): Remove
obsolete __NYACC__ and MES_FULL defines.
* src/mes.c [!MES_FULL]: Include reader-mes.h.
(mes_builtins) [!MES_FULL]: Include reader.mes.i, reader.me.environment.i.
[!MES_FULL]: Include reader.c.
(main) [!MES_FULL]: By default call load_env, only call bload_env
when --load is supplied. WAS: Always bload read-0-32.mo.
* src/reader.c (__end_of__mes_): Remove.
(dump): Remove option of dumping tiny test program.
* make/mescc-mes.make ($(OUT)/$(TARGET), mescc.mes-ccompile,
mescc.mes.c-compile-E): Depend on $(OUT)/mes, scripts/mes.
* src/src.make (mes.guile): Remove module/mes/read-32-0 dependency.
Do not build $(OUT)/mes.mes.
* module/module.make (module/mes/read-0.mo, module/mes/read-0-32.mo,
module/mes/tiny-0-32.mo): Remove targets.
(CLEAN): Do not add them. Neither install $(OUT)/mes.mes.
* .gitignore: Remove exceptions for them.
* make/install.make (install): Do not install them.
* HACKING: Update info about creating module/mes/read-32-0.mo.
* scaffold/mini-mes.c: Remove.
* scaffold/tiny-mes.c: Remove.
* scaffold/cons-mes.c: Remove.
* scaffold/scaffold.make (tiny-mes.libc, tiny-mes.guile, tiny-mes.mes,
mini-mes.libc, mini-mes.guile, mini-mes.mes): Reemove targets.
2017-05-28 14:03:45 +00:00
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make out/i686-unknown-linux-gnu-mes
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out/i686-unknown-linux-gnu-mes --dump < module/mes/read-0.mes > module/mes/read-0-32.mo
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2016-10-15 09:54:24 +00:00
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** C parser/compiler
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*** [[https://savannah.gnu.org/projects/nyacc][nyacc]]
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*** PEG: [[http://piumarta.com/software/peg/][parse C using PEG]]
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*** [[https://en.wikipedia.org/wiki/Tiny_C_Compiler][Tiny C Compiler]]
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*** [[http://www.t3x.org/subc/index.html][Sub C]]
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*** [[https://groups.google.com/forum/#!topic/comp.lang.lisp/VPuX0VsjTTE][C intepreter in LISP/Scheme/Python]]
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** C assembler/linker
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*** [[http://www.tldp.org/HOWTO/Assembly-HOWTO/linux.html][Assembly HOWTO]]
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*** ELF
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7f 45 4c 46
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*** [[http://www.muppetlabs.com/~breadbox/software/tiny/][Small ELF programs]]
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*** [[http://www.cirosantilli.com/elf-hello-world/][Elf hello world]]
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2016-12-10 21:47:13 +00:00
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** SC - c as s-expressions
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sc: http://sph.mn/content/3d3
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2016-10-15 09:54:24 +00:00
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** RNRS
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*** [[http://www.scheme-reports.org/][Scheme Reports]]
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*** [[ftp://publications.ai.mit.edu/ai-publications/pdf/AIM-349.pdf][Scheme - Report on Scheme]]
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*** [[ftp://publications.ai.mit.edu/ai-publications/pdf/AIM-452.pdf][RRS - Revised Report on Scheme]]
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mescc: Run mini-mes.
* .gitignore: Ignore tiny-mes and tiny .mo's.
* doc/examples/tiny-mes.c: Simplify.
* doc/examples/mini-mes.c: Use simplifications from tiny-mes.
* doc/examples/t.c (read_test, struct_test): New functions.
(test): Add tests for arena, g_cells globals.
* module/mes/elf-util.mes (dec->hex): New function.
(lambda/label->list): Add text-address parameter. Update callers.
* module/language/c99/compiler.mes (make, info, clone): Add init field.
(.init): New function.
(ident->accu): Add exceptions for globals.
* module/mes/elf-util.scm: Export it.
* module/mes/libc-i386.mes (i386:accu->base-ref,
i386:byte-accu->base-ref, i386:accu->base-ref+n,
i386:accu->global-ref, i386:global-ref->accu, i386:global-ref->base,
i386:global-add, i386:global->accu):, i386:local-ref->accu,
i386:local-ptr->accu, i386:local-ptr->base): New functions.
* module/mes/libc-i386.scm: Export them.
2017-01-29 14:22:39 +00:00
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** tiny schemes
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http://forum.osdev.org/viewtopic.php?f=15&t=19937
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http://www.stripedgazelle.org/joey/dreamos.html
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http://armpit.sourceforge.net/
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http://common-lisp.net/project/movitz/movitz.html
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<civodul> janneke: https://github.com/namin/inc looks interesting [15:18]
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2017-03-29 06:05:18 +00:00
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** Orians Jeremiah
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<OriansJ> janneke: also, if you look at
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https://github.com/oriansj/stage0/tree/master/stage2/High_level_prototypes
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[the garbage collected lisp I implemented], if there are any pieces
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I could add to finish off your mes lisp bootstrap just let me know
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because I would be more than happy to do that :D
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<janneke> OriansJ: that's what I'm hoping for, that our efforts can be
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complementary and we can work together
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*** lfam (~lfam@2601:47:4180:2ffb:7c05:17de:cf5f:23ef) has quit: Ping timeout:
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246 seconds [00:22]
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<janneke> exciting times! [00:23]
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<janneke> OriansJ: i looked a few times and saw 'LISP empty', so thanks for
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the pointer! [00:24]
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<civodul> OriansJ, janneke: from that page, there's also:
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https://web.archive.org/web/20160604035203fw_/http://homepage.ntlworld.com/edmund.grimley-evans/bcompiler.html
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** C4/C500
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https://web.archive.org/web/20160604041431/http://homepage.ntlworld.com/edmund.grimley-evans/cc500/cc500.c
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https://github.com/rswier/c4/blob/master/c4.c
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2017-04-02 15:01:29 +00:00
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** Compilers for free
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http://codon.com/compilers-for-free
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