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Author SHA1 Message Date
Andy Wingo
22e95889ff remove unused "envs" code from guile-vm
* src/Makefile.am:
* src/envs.c:
* src/envs.h: Remove the envs code, which was historically used to
  implement modules. But since we use Guile's modules, these aren't
  necessary.

* src/vm.c:
* src/vm_loader.c:
* module/system/vm/assemble.scm: Remove code bits that trafficked in yon
  deprecation.
2008-08-20 14:11:35 -07:00
Andy Wingo
b9d8ed0502 make ,stats work
* module/system/repl/command.scm (display-time-stat, display-mips-stat):
  Always convert to float.

* module/system/vm/frame.scm (print-frame): Write the args, don't display them.

* module/system/repl/command.scm (statistics): gc-sweep-time is no more.
2008-08-11 19:51:33 +02:00
Andy Wingo
482015afec ease-of-use improvement to ,m; catch read errors at the repl
* module/system/repl/command.scm (module): Accept e.g. `,m ice-9 popen'
  in addition to `,m (ice-9 popen)'.

* module/system/repl/repl.scm (start-repl): Call read with a backtrace
  handler too.
2008-08-11 19:27:23 +02:00
Andy Wingo
7e4760e413 fix bug in compilation of and' and or'; more robust underflow detection.
* module/system/il/compile.scm (codegen): Rewrite handling of `and' and
  `or' ghil compilation, because it was broken if drop was #t. Tricky
  bug, this one! Took me days to track down!

* module/system/repl/repl.scm: Export call-with-backtrace, which probably
  should go in some other file.

* src/vm.c (scm_vm_save_stack): Handle the fp==0 case for errors before
  we have a frame.

* src/vm_engine.h (NEW_FRAME, FREE_FRAME): Stricter underflow checking,
  raising the stack base to the return address, in an attempt to prevent
  inadvertant stack smashing (the symptom of the and/or miscompilation
  bug).
  (CHECK_IP): A check that the current IP is within the bounds of the
  current program. Not normally compiled in. Perhaps it should be?

* src/vm_system.c (halt): Set vp->ip to NULL. Paranoia, I know.
  (return): Call CHECK_IP(), if such a thing is compiled in.

* testsuite/Makefile.am (vm_test_files):
* testsuite/t-catch.scm:
* testsuite/t-map.scm:
* testsuite/t-or.scm: New tests.
2008-08-11 18:35:58 +02:00
Andy Wingo
67c4505e7a backtraces on meta-commands too
* module/system/repl/repl.scm (call-with-backtrace): New helper.
  (start-repl): Use the helper, for normal expressions *and* for
  meta-commands.
2008-08-09 14:30:52 +02:00
Andy Wingo
707b812ef4 warn and load source file if newer than compile file
* ice-9/boot-9.scm (try-module-autoload): Warn if the compiled file is
  older than the source file, and in that case load the source file.
2008-08-09 14:23:20 +02:00
Andy Wingo
e6d4e05cbd don't truncate .go files, do an atomic rename to prevent SIGBUS
* module/system/base/compile.scm (call-with-output-file/atomic): New
  proc, outputs to a tempfile then does an atomic rename. Prevents SIGBUS
  if a compiled file is truncated and rewritten, as the file's objcode is
  mmap'd in.
  (compile-file): Use the new helper.
2008-08-09 14:11:35 +02:00
Andy Wingo
fbea69ad42 fix source location reporting for compiled code
* module/system/repl/repl.scm (default-catch-handler): Cosmetic
  improvements on VM error backtraces.

* module/system/vm/frame.scm (print-frame): Cosmetic improvements.
  (frame-line-number): source:line operates on the handle, not the cdr.
  (print-frame-chain-as-backtrace): Cosmetic improvements.
2008-08-09 13:41:23 +02:00
Andy Wingo
29711eb918 heapify the bootstrap program
* src/vm_engine.c (vm_run):
* src/programs.c (scm_c_make_program): If the holder is #f, malloc *and*
  copy the bytecode.

* module/system/vm/frame.scm (bootstrap-frame?): Now that we actually
  heapify the bootstrap program, we can check for `halt' in the bytecode.
2008-08-08 17:05:41 +02:00
Andy Wingo
e15f47740b More relevant VM backtrace
* module/system/repl/repl.scm: Remove a useless print in the backtrace
  handler.

* module/system/vm/debug.scm (vm-backtrace): s/reverse!/reverse/

* module/system/vm/frame.scm (bootstrap-frame?): A heuristic to see if a
  frame is a bootstrap frame, the one allocated on the stack in
  vm_engine.c; need to have a better solution for this.
  (make-frame-chain): Don't include bootstrap frames, they add no
  information.
  (print-frame-chain-as-backtrace): Remove a pk.

* src/vm_engine.c (vm_run): Add a fixme about the bootstrap prograp.
2008-08-08 13:19:49 +02:00
Andy Wingo
d0168f3da8 improve source loc info in nonlocal exits and backtraces
* module/system/il/compile.scm (codegen): The currently-executing
  instruction is actually the one right before the instruction pointer;
  so for purposes of assv to find a source location for an ip, put the
  source after the code, as it was before.

* module/system/vm/debug.scm (vm-backtrace): Move more code to frame.scm.

* module/system/vm/frame.scm (make-frame-chain): Include all frames, even
  the bootstrap one. For a reentrant backtrace we'll have boostrap
  programs anyway. Probably should check for objcode[2] == scm_op_halt,
  to not show those frames in the trace.
  (frame-line-number, frame-file): New helpers.
  (print-frame): Print out the line number too.
  (frame-call-representation): Code from print-frame-call moved here.
  (print-frame-chain-as-backtrace): A backtrace printer, yays.
  (program-name): Check link validity before calling frame-address on it.

* module/system/vm/program.scm (source:addr, source:line, source:column)
  (source:file): New accessors for the elements of program-sources.

* module/system/vm/vm.scm (vm:last-ip): New export.
  (vm-last-frame-chain): Use vm:last-ip in making the frame chain.

* src/vm.h (struct scm_vm):
* src/vm.c (make_vm, scm_vm_last_ip, scm_vm_save_stack): Save the last
  instruction pointer when saving the stack. Really though, we should be
  saving all of the stack data on a spaghetti stack.

* src/vm_system.c (late-variable-ref): Pointless s/REGISTER/BEFORE_GC/.
2008-08-08 12:55:57 +02:00
Andy Wingo
81aae20202 fix bug in variable-set instruction; ,x prints out program metadata
* module/system/vm/disasm.scm (disassemble-program, disassemble-meta):
  Disassemble program meta information too, if it's there.

* src/vm_system.c (variable-set): Don't try to proxy name information;
  maybe we can do this later, but the code as it was was calling SCM_CAR
  on a variable, which is for the lose.
2008-08-08 00:26:17 +02:00
Andy Wingo
17d1b4bffd fix stack corruption on vm-save-stack; more robust with nonlocal exits
* module/system/repl/command.scm: Coerce rationals to floats.

* module/system/vm/program.scm (program-documentation): Fix a typo, doh!

* src/vm.c (vm_reset_stack, struct vm_unwind_data): Add unwind handler to
  reset vp->sp, vp->fp, and vp->this_frame when performing a nonlocal
  exit from a vm_run.
  (vm_heapify_frames_1): Don't repack the stack, it causes stack
  corruption. I think we need spaghetti stacks to handle continuations,
  not separate heap frames. I don't think call/cc is working now.
  (vm-save-stack): Don't call heapify_frames, that modifies the stack
  that we're copying. Instead call its helper, heapify_1.

* src/vm_engine.c (vm_run): Set up the vm_reset_stack unwind handler.

* src/vm_engine.h (IP_REG, SP_REG, FP_REG): If we got through all of the
  checks without having these macros defined, define them as empty.
  Happens on x86-64.

* src/vm_system.c (halt): End the dynwind before we return from the VM.

* src/vm_scheme.c (REL): Sync the regs before calling scm_lt_p et al,
  cause they can do a nonlocal exit.
2008-08-07 19:04:25 +02:00
Andy Wingo
68a2e18a04 vm backtrace improvements
* module/system/repl/repl.scm (default-pre-unwind-handler): Save the VM
  stack in addition to the interpreter stack. At some point these
  functions should know about each other, I guess.
  (default-catch-handler): Show the VM stack too. Needs a bit of work.

* module/system/vm/frame.scm: Export make-frame-chain.

* module/system/vm/vm.scm: Export vm-save-stack.

* src/vm.c (scm_vm_save_stack): New function, heapifies the current
  stack, saving it to vm->last_frame.

* src/vm_engine.c (vm_run:vm_error): Don't heapify frames here, because
  nonlocal exits avoid this code entirely. Instead rely on the user
  saving the stack with a pre-unwind handler, as the repl does.
2008-08-07 13:51:45 +02:00
Andy Wingo
d0927dde97 build fixes
* benchmark/measure.scm: Update for module changes.

* module/system/vm/Makefile.am: Update the set of modules needing
  compilation.

* src/guile-vm.c: Bootstrap the VM, now that we have a function for it.

* testsuite/Makefile.am:
* testsuite/run-vm-tests.scm: Update to fix make check, broken since we
  merged with Guile.
2008-08-07 13:29:15 +02:00
Andy Wingo
07e56b27a1 big reorg of scheme modules -- e.g. programs.c -> (system vm program)
This reorganization kills the ugly module-export-all hacks in
bootstrap.scm and core.scm. In fact, it gets rid of core.scm entirely,
breaking out its functionality into separate files.

* module/system/vm/trace.scm:
* module/system/vm/profile.scm:
* module/system/vm/disasm.scm:
* module/system/vm/debug.scm:
* module/system/vm/conv.scm:
* module/system/vm/assemble.scm:
* module/system/repl/repl.scm:
* module/system/repl/common.scm:
* module/system/base/compile.scm:
* module/system/repl/command.scm: Update for changes, and fix a bug in
  procedure-documentation.

* module/system/vm/bootstrap.scm: Just call scm_bootstrap_vm, which
  handles setting load-compiled for us.

* module/system/vm/core.scm: Removed, functionality folded into other
  modules.

* module/system/vm/frame.scm: Export the C frame procedures here; also
  move scheme functions from core.scm here.

* module/system/vm/instruction.scm: New file, exports procedures from
  instructions.c.

* module/system/vm/objcode.scm: New file, exports procedures from
  objcodes.c.

* module/system/vm/program.scm: New file, exports procedures from
  programs.c, and some scheme functions originally from core.scm.

* module/system/vm/vm.scm: New file, from vm.c and core.scm.

* src/Makefile.am (libguile_vm_la_SOURCES): Add bootstrap.h.

* src/bootstrap.h: New file, prototypes scm_bootstrap_vm (), which the
  scm_init_* functions call.

* src/frames.h:
* src/frames.c (scm_init_frames):
* src/frames.c (scm_bootstrap_frames):

* src/vm.h:
* src/instructions.h:
* src/instructions.c (scm_init_instructions):
* src/instructions.c (scm_bootstrap_instructions):
* src/objcodes.h:
* src/objcodes.c (scm_bootstrap_objcodes):
* src/objcodes.c (scm_init_objcodes):
* src/programs.h:
* src/programs.c (scm_bootstrap_programs):
* src/programs.c (scm_init_programs):
* src/vm.c (scm_bootstrap_vm):
* src/vm.c (scm_init_vm): Call scm_bootstrap_vm() before doing anything
  in an init function. Bootstrap_vm will call bootstrap_instructions(),
  etc to initialize types, then set load-compiled to point to
  load-compiled/vm.

* src/vm.c (scm_load_compiled_with_vm): Code to load .go files, if
  they're present.
2008-08-07 13:11:27 +02:00
Andy Wingo
1865ad5680 sync registers before calling c functions, really
* src/vm_loader.c:
* src/vm_scheme.c: Use SYNC_REGISTER, although it's the same as
  SYNC_BEFORE_GC. A style issue?

* src/vm_system.c (call, tail-call): Explicitly do a SYNC_REGISTER, not
  relying on POP_LIST to do it for us, because POP_LIST won't do it if
  there are 0 arguments. The way that this manifested itself to me was
  badness after the second (read) call in a repl session. I wish I
  understood more about this problem.
2008-08-06 00:13:31 +02:00
Andy Wingo
6287726adc save vm's state before calling out to c procedures
* .gitignore: Ignore .go files.

* src/vm_loader.c:
* src/vm_scheme.c:
* src/vm_system.c: Sync the VM's state before calling out to C
  procedures that might cons or cause a nonlocal exit.
2008-08-05 23:08:58 +02:00
Andy Wingo
d507b25f1f disable trampoline "optimizations"
* src/vm_system.c: Disable those trampoline "optimizations", as they
  actually slowed down benchmark/measure.scm '(fibo 30)'. They were
  edifying, in that now I have an appreciation of the need for
  SYNC_ALL().
2008-08-05 21:56:29 +02:00
Andy Wingo
659b4611b6 re-enable computed goto; fix ,help in the repl; subr dispatch optimizations
* m4/labels-as-values.m4: New file, checks for computed goto.

* configure.in: Use AC_C_LABELS_AS_VALUES.

* module/system/repl/command.scm (procedure-documentation): Extend the
  core's procedure-documentation in an ad-hoc way, so that ,help works.

* module/system/vm/core.scm (program-properties): New function.
  (program-documentation): New function.

* src/vm_engine.h (DROP, DROPN): Decrement sp before checking for
  underflow.

* src/vm_system.c (call, tail-call): Add some optimized dispatch for some
  C functions, so that we can avoid consing and the interpreter if
  possible. However currently it seems that I'm always getting the
  scm_call_* trampolines back.
2008-08-05 01:03:17 +02:00
Andy Wingo
fbde2b915b Add docstring support
* module/language/scheme/translate.scm (translate): Adapt to lambda
  having a `meta' slot now.
  (primitive-syntax-table, parse-lambda-meta): Parse out a docstring from
  lambda forms, putting in the <ghil-lambda>'s meta slot.

* module/system/il/compile.scm (optimize, codegen): Passthrough for the
  `meta' slot to the <glil-asm> object.

* module/system/il/ghil.scm (<ghil-lambda>): Add meta slot.

* module/system/il/glil.scm (<glil-asm>): Add meta slot.
  (unparse): Unparse meta.

* module/system/vm/assemble.scm (preprocess): Pass through the meta slot.
  (codegen): So, set the bytespec's meta slot as a list: bindings, source
  info, then the tail is the meta-info, which should be an alist.
  Currently the only defined key is `documentation', but `name' could
  come in the future.

* module/system/vm/core.scm (program-sources): Sources are now in the
  cadr...
  (program-property): And here we have access to the cddr.
2008-08-03 14:33:02 +02:00
Andy Wingo
96969dc1d6 fix recording of source locations
* module/language/scheme/translate.scm (translate, trans)
  (make-pmatch-transformers): When recursing into subexpressions, get the
  appropriate source location information.
  (location): Include the source filename in the location information.

* module/system/il/compile.scm (codegen): Record source locations in more
  cases. (This information ends up being part of the procedure metadata,
  not the actual codepath.)

* module/system/il/glil.scm (unparse): Don't destructure the source
  locations (it's a vector now).
2008-08-03 14:03:47 +02:00
Andy Wingo
427d4a0c51 only pass symbols to module-ref & c
* module/language/scheme/translate.scm: Make sure that we're actually
  passing symbols to module-ref et al.
2008-08-02 12:46:14 +02:00
Andy Wingo
75e03dee5b add compile-toplevel and evaluate conditions to eval-case
* ice-9/boot-9.scm (eval-case): Define two more conditions:
  compile-toplevel and evaluate, as common lisp and chez scheme do.
  (defmacro, define-option-interface, define-macro, define-syntax-macro)
  (define-module, use-modules, use-syntax, define-public)
  (defmacro-public, export, re-export): Add `compile-toplevel' to all
  uses of eval-case.
2008-08-02 12:30:03 +02:00
Andy Wingo
99f20fb622 make has-suffix? use string-suffix?
* ice-9/boot-9.scm (has-suffix?): Use the core / srfi-13's
  string-suffix?.
2008-08-02 12:29:54 +02:00
Andy Wingo
6b1a13744b Support loading of compiled syncase macros
* ice-9/syncase.scm (current-eval-closure): New procedure.
  (env->eval-closure): Don't default to the root module: if we have no
  environment, we default to the current module via the logic in
  current-eval-closure. This is because psyntax's compilation mode
  doesn't know about guile modules, and thus won't dump the code to
  twiddle the current eval closure.
  (putprop, getprop, guile-macro): Use `current-eval-closure'.
  At the end, leave the expansion-eval-closure set to #f.
2008-08-02 12:29:44 +02:00
Andy Wingo
2b70bf0eb3 support thunks as prompts, as readline does.
* ice-9/boot-9.scm (repl-reader): Support thunks as prompts.
2008-08-02 12:29:33 +02:00
Andy Wingo
d28d59933c make readline's `repl-reader' impl check the current-reader fluid
* guile-readline/ice-9/readline.scm (activate-readline): Use the current
  binding of the current-reader fluid, if it is available.
2008-08-02 12:29:07 +02:00
Andy Wingo
d351811347 Fixes to make guile-vm compile in guile source tree
* INSTALL: Updated.
* m4/gnulib-cache.m4: Regenerated.

* Makefile.am: Spelling fix.

* guilec.mk:
* src/Makefile.am:
* src/vm.c: Update to actually work inside a guile source tree.

* libguile/Makefile.am: Don't error on warnings in the flex-generated
  c-tokenize function.
2008-08-02 12:17:27 +02:00
Andy Wingo
e610dc3851 merge guile-vm to guile
An attempt to pull in the original history from guile-vm into guile itself.
2008-08-02 11:40:32 +02:00
Andy Wingo
87c4242ca8 Updated loop disassembly
* benchmark/lib.scm: Update loop disassembly, with inlining. Neat!
2008-05-25 13:43:26 +02:00
Andy Wingo
6cc3f99e83 add inline macros for zero? and 1-
* module/system/il/inline.scm (zero?, 1-): New inlines. Neat :) The loop
  benchmark speedup is now up to 5x.
2008-05-25 13:38:17 +02:00
Andy Wingo
e677365cbc Speed up the self-tail-recursive case (1x->2x)
* benchmark/lib.scm: Add a comment, update the loop disassembly. Loop is
  now faster in the VM, thankfully.

* src/vm_engine.h (CACHE_PROGRAM): Only release and regrab the object
  array handle if the program changed. That is to say, optimize the
  self-tail-recursive case. But perhaps the thing to optimize here are
  the procedure calls themselves. Worth looking at in the future.
2008-05-25 13:34:50 +02:00
Andy Wingo
22bcbe8cc9 enable inlining; speed!
* module/system/il/inline.scm: New module, implements generic inlining of
  scheme functions. It even does the right thing regarding (define
  arity:nopt caddr) and such. So now there are many more inlines: the
  arithmetics, `apply', the caddr family, etc. This makes the benchmarks
  *much* faster.

* module/language/scheme/translate.scm (trans): Remove the
  %scheme-primitives code in favor of the generic (scheme il inline)
  code. Adds inlining for +, -, =, etc.

* src/vm.c (vm_puts): Fix to work.

* module/system/base/compile.scm (system): Export load/compile also.

* module/system/il/compile.scm (optimize): Further debitrotting, but I
  haven't tried this function yet. It seems that <ghil-inst> was what
  <ghil-inline> is.

* module/system/il/ghil.scm (*core-primitives*, *macro-module*)
  (ghil-primitive-macro?, ghil-macro-expander, ghil-primitive?): Remove
  these unused things.

* module/system/il/macros.scm: Removed, replaced with inline.scm.

* module/system/vm/assemble.scm (stack->bytes): Before, the final
  serialization code did an (apply u8vector (apply append (map
  u8vector->list ...))). Aside from the misspelling of append-map, this
  ends up pushing all elements of the u8vector on the stack -- assuredly
  not what you want. But besides even that, I think that pushing more
  than 32k arguments on the stack brings out some other bug that I think
  was hidden before, because now we actually use the `apply' VM
  instruction. Further testing is needed here, I think. Fixed the code to
  be more efficient, which fixes the manifestation of this particular
  bug: a failure to self-compile after inlining was enabled.

* module/system/vm/bootstrap.scm: New module, serves to bootstrap
  boot-9's `load-compiled'. That way when we load (system vm core), we're
  loading compiled code already.

* module/system/vm/core.scm: Use (system vm bootstrap).

* src/guilec.in: Use the bootstrap code, so that we really are compiling
  with an entirely compiled compiler.

* module/system/repl/repl.scm (default-catch-handler): An attempt at
  making the repl print a backtrace; more work needed here.

* module/system/vm/frame.scm (make-frame-chain): Fix some misspellings --
  I think, anyway.
2008-05-25 13:13:15 +02:00
Andy Wingo
5feb8b6529 update news
* NEWS: Update news for 0.7 release
2008-05-20 13:30:21 +02:00
Andy Wingo
51f6b8f377 distcheck works now
* guilec.mk: New file, to be included when building .go files.

* module/language/scheme/Makefile.am:
* module/system/base/Makefile.am:
* module/system/il/Makefile.am:
* module/system/repl/Makefile.am:
* module/system/vm/Makefile.am: Use guilec.mk.

* module/system/base/compile.scm (compiled-file-name): Work on the
  basename of a file, so that we always create files in the directory
  where we run. Perhaps should add a -o option to guilec in the future.

* Makefile.am: Actually recurse into module/ in a normal build.
2008-05-20 12:54:14 +02:00
Andy Wingo
292bb8fc68 include local copy of guile.m4
* acinclude.m4: Add guile.m4 to this, because I really can't be arsed
  with aclocal.

* autogen.sh: More better vanilla.
2008-05-20 12:21:40 +02:00
Andy Wingo
1f246cb782 autotooling, version bump to 0.7
* acconfig.h: Removed.

* acinclude.m4: Use the extended AC_DEFINE for HAVE_LABELS_AS_VALUES, so
  as to remove the need for acconfig.h.

* autogen.sh: Use autoreconf.

* configure.in: Update info, don't warn about non-gnu make, bump version
  to 0.7.

* doc/texinfo.tex: Automagically updated. (Should this be in VCS?)
2008-05-20 12:10:18 +02:00
Andy Wingo
b571a648d5 fix distcheck
* src/Makefile.am (AM_CFLAGS, libguile_vm_la_LDFLAGS): Don't build with
  -pg. (There are better profilers out there.)
  (CLEANFILES): Add guilev and guile-disasm.

* testsuite/Makefile.am (GUILE_VM): s/srcdir/builddir/.
2008-05-20 11:54:05 +02:00
Andy Wingo
13c4775352 properly include config.h in source files, not headers
* src/Makefile.am: Add $(DEFAULT_INCLUDES) to a couple of our custom
  rules so we pick up the -I for config.h.

* src/*.[ch]: Include the config.h in the C files, not in the headers.
2008-05-20 11:46:52 +02:00
Andy Wingo
d79d908ef0 guile-vm is completely self-compiling now!
* module/language/scheme/translate.scm (*the-compile-toplevel-symbol*):
  Reset to compile-toplevel, which requires a patch to guile.

* module/system/base/compile.scm (compile-file): Some foo so that we load
  up the scheme language before call-with-output-file. Fixes compilation
  of (language scheme) modules.

* module/system/base/language.scm (define-language): Don't unquote in
  make-language; refer to it by name instead, and export it.

* module/system/repl/Makefile.am (vm_DATA): Don't compile describe.scm,
  because we really can't deal with goops yet.

* module/system/repl/repl.scm (compile-toplevel): If we're compiling, put
  in a stub definition of start-stack, which is closely tied to the
  interpreter.

* src/vm_loader.c (load-program): Fix a very tricky corruption bug!
2008-05-20 11:33:28 +02:00
Andy Wingo
5163e95138 fix syntax error in describe.scm
* module/system/repl/describe.scm (format-documentation): Remove bad
  string syntax. This file doesn't compile though, due to define-macro
  being a procedure->syntax macro.
2008-05-19 21:38:09 +02:00
Andy Wingo
9246a48606 fix immediate linkage, some other fixes to allow vm/ to compile
* module/language/scheme/translate.scm (lookup-transformer): Allow for
  undefined variables when doing the transformation -- it's possible that
  they come from a module definition's forward declaration.

* module/system/repl/command.scm (import): Make into legal Scheme, caught
  by the compiler :-)

* module/system/vm/assemble.scm (<vlink-now>): Remove the module field.
  Immediate bindings will now always be relative to the current module.
  Fixes some mess about process-define-module not being defined when
  loading modules, probably because we destructively modified the
  ghil-env.
  (codegen, dump-object!): Don't dump a module name.

* src/vm_loader.c (link-now): Just use scm_lookup.
2008-05-19 21:29:18 +02:00
Andy Wingo
6297d22907 bind all module-level variables lazily
comments in ghil-lookup are pertinent.

* module/system/il/compile.scm (make-glil-var): Require that ghil vars
  have environments. Remove the 'unresolved case -- we'll treat all
  module-level variables as late bound.

* module/system/il/ghil.scm (ghil-lookup): Treat all module level vars as
  late bound.

* module/system/vm/assemble.scm: Instead of vlink and vlate-bound, have
  vlink-now and vlink-later.
  (codegen): Add a bunch of crap to get the various cases right.
  (object-assoc, dump-object!): Handle the new cases, remove the old
  cases.

* src/vm_loader.c (link-now, link-later): Change from link and lazy-bind.
  Include the module in which the link is to be done, so that callers
  from other modules get the right behavior.

* src/vm_system.c (late-variable-ref, late-variable-set): Instead of a
  sym, the unbound representation is a module name / symbol pair.

* testsuite/run-vm-tests.scm (run-vm-tests): Remove some debugging.
2008-05-19 19:37:39 +02:00
Andy Wingo
9cc649b880 Add instructions for doing very late binding
Fixes the mutually-recursive toplevel definitions case. This could be
fixed by rewriting bodies as letrecs, as r6 does, but that's not really
repl-compatible.

* module/system/il/ghil.scm (ghil-lookup): Ok, if we can't locate a
  variable, mark it as unresolved.

* module/system/il/compile.scm (make-glil-var): Compile unresolved
  variables as <glil-late-bound> objects.

* module/system/il/glil.scm: Add <glil-late-bound> definition.

* module/system/vm/assemble.scm (codegen): And, finally, when we see a
  <vlate-bound> object, allocate a slot for it in the object vector,
  setting it to a symbol. Add a new pair of instructions to resolve that
  symbol to a variable at the last minute.

* src/vm_loader.c (load-number): Bugfix: the radix argument should be
  SCM_UNDEFINED in order to default to 10.
  (late-bind): Add an unresolved symbol to the object vector. Could be
  replaced with load-symbol I guess.

* src/vm_system.c (late-variable-ref, late-variable-set): New
  instructions to do late symbol binding.

* testsuite/Makefile.am (vm_test_files):
* testsuite/t-mutual-toplevel-defines.scm: New test, failing for some
  reason involving the core even? and odd? definitions.
2008-05-19 17:46:05 +02:00
Andy Wingo
1b8abe5514 compile all of base/; some arbitrary changes; more "fixes" to `link'
* module/language/scheme/translate.scm (lookup-transformer): When
  expanding syncase macros, use the eval closure from the ghil-env.
  Probably doesn't make any difference whatsoever.

* module/system/base/Makefile.am (SOURCES): Compile pmatch.scm, now that
  it works :-))

* module/system/base/compile.scm (compile-in): Compile inside a
  save-module-excursion, so that side effects of evaluation don't leak
  out.

* module/system/base/pmatch.scm: Change from :use-syntax/:export-syntax
  to simply :use-modules/:export. Also probably has no effect.

* module/system/il/ghil.scm (fix-ghil-mod!): Suppress warnings resulting
  from compilation of define-module.

* src/vm_loader.c (link): So, referencing variables defined but not
  exported from the current module didn't work. Fixed that, but it's
  hacky. There are still some uncaught cases.
2008-05-19 12:57:48 +02:00
Andy Wingo
8f43eb2b42 syncase macros compiling!
* module/system/base/compile.scm: Also import load-objcode from (system
  vm core).

* module/language/scheme/translate.scm (lookup-transformer): Use
  sc-expand3 in compilation mode when compiling macros. Yay, syncase
  macros compile!
2008-05-19 10:38:18 +02:00
Andy Wingo
a52b96a70a rudimentary syncase support; some dash symbol syncase removal
* module/system/vm/assemble.scm (dump-object!):
* src/vm_loader.c (VM_DEFINE_LOADER): Use scm_from_locale_keywordn, not
  the krazy dash symbol stuff.

* module/language/scheme/translate.scm (lookup-transformer): Add a
  special case for syncase macros.
2008-05-15 23:38:52 +02:00
Andy Wingo
7f52f9e3b4 avoid zealous unquotation
* module/system/base/syntax.scm (define-record): Again, don't unquote in
  actual objects, because this is uncompilable. Ah well. At least now all
  of base/ is compiling.

* module/system/vm/assemble.scm (dump-object!): More debug info.
2008-05-15 18:57:33 +02:00
Andy Wingo
cd702346f2 fix else in cond, letrec env corruption, syntax.scm compile, define-module side effects
* module/language/scheme/translate.scm (primitive-syntax-table):
  Translate the `else' clause of a cond as (begin ...). We used to use
  trans-body, which processes internal defines, which are not legal
  syntax here.

* module/system/base/syntax.scm (define-record): Unfortunately, we can't
  unquote in the actual procedure for `%compute-initargs', because that
  doesn't work with compilation. So reference %compute-initargs by name,
  and export it.

* module/system/il/ghil.scm (apopq!): Gaaaaar. The order of the arguments
  to assq-remove! was reversed, which was the badness, causing corruption
  to the env after calling call-with-ghil-bindings. Grrrrrr.

  (fix-ghil-mod!, ghil-lookup, ghil-define): As amply commented in the
  code, deal with compile-time side effects to the current module by
  lazily noticing and patching up the compile-time environment. A hacky
  solution until such a time as we special-case something for
  `define-module'.
2008-05-15 18:48:22 +02:00