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Author SHA1 Message Date
Andy Wingo
afc74c2920 add ELF loader
* libguile/objcodes.h:
* libguile/objcodes.c (scm_load_thunk_from_file)
  (scm_load_thunk_from_memory): New procedures.

* libguile/elf.h: Import from glibc.  Not installed.

* libguile/Makefile.am: Adapt for elf.h.

* module/system/vm/objcode.scm: (load-thunk-from-file)
  (load-thunk-from-memory): New exports.
2012-06-22 13:40:50 +02:00
Andy Wingo
91ee7515da Merge remote-tracking branch 'origin/stable-2.0'
Conflicts:
	libguile/__scm.h
	libguile/array-map.c
	libguile/procprop.c
	libguile/tags.h
	module/ice-9/deprecated.scm
	module/ice-9/psyntax-pp.scm
	module/ice-9/psyntax.scm
	test-suite/standalone/test-num2integral.c
	test-suite/tests/regexp.test
2012-01-10 00:41:42 +01:00
Andy Wingo
213544e0dc don't leak file descriptors when mmaping objcode
* libguile/objcodes.c (make_objcode_from_file): Close the mmap'd file,
  so that we don't leak the descriptor.  I was previously under the
  mistaken impression that closing the fd unmapped the memory, which is
  not the case.  Thanks to Cedric Cellier for the tip!
2012-01-07 02:07:09 +01:00
Andy Wingo
b2208d2e98 Merge remote-tracking branch 'origin/stable-2.0'
Conflicts:
	configure.ac
	libguile/fluids.c
	libguile/gc.c
	libguile/gc.h
	libguile/objcodes.c
	libguile/procprop.c
	libguile/vm.c
	module/ice-9/psyntax-pp.scm
	module/ice-9/psyntax.scm
2011-12-01 23:31:50 +01:00
Ludovic Courtès
de2c0a10fe Complete cross-compilation support.
* module/system/base/target.scm (%target-endianness, %target-word-size):
  New fluids.
  (%native-word-size): New variable.
  (with-target): Set these fluids.
  (cpu-endianness, cpu-word-size, triplet-cpu, triplet-vendor,
  triplet-os): New procedures.
  (target-cpu, target-vendor, target-os): Use them.
  (target-endianness, target-word-size): Refer to the corresponding
  fluid.

* libguile/objcodes.c (target_endianness_var, target_word_size_var): New
  global variables.
  (NATIVE_ENDIANNESS): New macro.
  (target_endianness, target_word_size, to_native_order): New functions.
  (make_objcode_from_file): Use `scm_bytecode_to_native_objcode' instead
  of `scm_bytecode_to_objcode'.
  (bytecode_to_objcode): New function, based on `scm_bytecode_to_objcode',
  with the addition of an `endianness' and `word_size' parameters.
  (scm_bytecode_to_objcode): Use it.
  (scm_bytecode_to_native_objcode): New function.
  (scm_write_objcode): Use `target_word_size' and `target_endianness'.
  Convert OBJCODE's len and meta-len to native byte order.
  (scm_init_objcodes): Initialize `target_endianness_var' and
  `target_word_size_var'.

* libguile/objcodes.h (scm_bytecode_to_native_objcode): New declaration.

* libguile/vm.c (really_make_boot_program): Use
  `scm_bytecode_to_native_objcode' instead of `scm_bytecode_to_objcode'.

* test-suite/tests/asm-to-bytecode.test (%objcode-cookie-size): New
  variable.
  (test-target): New procedure.
  ("cross-compilation"): Add `test-target' calls and the "unknown
  target" test.
2011-11-22 00:22:46 +01:00
Andy Wingo
f209aeee9f locking for write, lfwrite
* libguile/ports.c (scm_c_write_unlocked, scm_c_write)
  (scm_lfwrite_unlocked, scm_lfwrite): Add locking and _unlocked
  variants.  Change uses to _unlocked.
2011-11-08 00:55:06 +01:00
Andy Wingo
0607ebbfcf locking for putc, puts
* libguile/ports.c (scm_putc, scm_puts):
* libguile/ports.h (scm_putc_unlocked, scm_puts_unlocked): Separate into
  _unlocked and locked variants.  Change all callers to use the
  _unlocked versions.
2011-11-08 00:55:05 +01:00
Andy Wingo
8b66aa8f54 Merge remote-tracking branch 'origin/stable-2.0'
Conflicts:
	libguile/bytevectors.c
	libguile/bytevectors.h
	libguile/objcodes.c
	libguile/r6rs-ports.c
	libguile/strings.c
	libguile/vm.c
2011-08-31 09:34:54 +02:00
Andy Wingo
fb031aba42 fix a couple of leaks
* libguile/bytevectors.h:
* libguile/bytevectors.c (scm_c_take_gc_bytevector): Rename this
  internal function, from scm_c_take_bytevector.  This indicates that
  unlike the other scm_take_* functions, this one takes GC-managed
  memory.

* libguile/objcodes.c (scm_objcode_to_bytecode):
* libguile/vm.c (really_make_boot_program): Use
  scm_gc_malloc_pointerless, not scm_malloc.  Thanks to Stefan
  Israelsson Tampe!

* libguile/r6rs-ports.c:
* libguile/strings.c: Adapt to renames.
2011-08-18 12:53:28 +02:00
Andy Wingo
99cc1092a8 Merge remote-tracking branch 'local-2.0/stable-2.0' 2011-06-16 20:01:56 +02:00
Andy Wingo
32f94bf258 O_CLOEXEC usage
* libguile/objcodes.c (scm_load_objcode):
* libguile/scmsigs.c (start_signal_delivery_thread):
* libguile/threads.c (guilify_self_1): Use O_CLOEXEC.
2011-06-16 19:47:26 +02:00
Andy Wingo
46da7909e1 Merge remote-tracking branch 'local-2.0/stable-2.0'
Conflicts:
	meta/Makefile.am
2011-06-02 22:49:33 +02:00
Andy Wingo
f0b7c3c6b9 write-objcode uses target-endianness, target-word-size
* libguile/_scm.h (SCM_OBJCODE_ENDIANNESS_OFFSET):
  (SCM_OBJCODE_WORD_SIZE_OFFSET): New defines.
* libguile/objcodes.c (scm_write_objcode): Use target-endianness and
  target-word-size when writing the objcode cookie.
2011-05-31 11:18:29 +02:00
Andy Wingo
059a588fed bytevectors have internal parent field
* libguile/bytevectors.h (SCM_BYTEVECTOR_HEADER_SIZE): Bump, giving
  bytevectors another word: a parent pointer.  Will allow for
  sub-bytevectors and efficient mmap bindings.

* libguile/bytevectors.c (make_bytevector):
  (make_bytevector_from_buffer): Init parent to #f.
  (scm_c_take_bytevector, scm_c_take_typed_bytevector): Another
  argument, the parent, which gets set in the bytevector.

* libguile/foreign.c (scm_pointer_to_bytevector): Use the parent field
  instead of registering a weak reference from bytevector to foreign
  pointer.

* libguile/objcodes.c (scm_objcode_to_bytecode): Use the parent field to
  avoid copying the objcode.

* libguile/srfi-4.c (DEFINE_SRFI_4_C_FUNCS):
* libguile/strings.c (scm_from_stringn):
* libguile/vm.c (really_make_boot_program):
* libguile/r6rs-ports.c (scm_get_bytevector_some)
  (scm_get_bytevector_all, bytevector_output_port_procedure): Set the
  parent to #f.
2011-05-07 14:57:15 +02:00
Andy Wingo
13a78b0fd7 support loading objcode even if mmap(2) is unavailable
* configure.ac: Check for sys/mman.h.

* libguile/objcodes.c (verify_cookie): Factor cookie verification out to
  a helper function.
  (make_objcode_from_file): Rename from make_objcode_by_mmap.  If mmap
  is unavailable, just read(2) to a bytevector.
2011-04-01 12:34:21 +02:00
Andy Wingo
355dd8cb4b make_objcode_by_mmap uses MAP_PRIVATE, not MAP_SHARED
* libguile/objcodes.c (make_objcode_by_mmap): MAP_PRIVATE, not
  MAP_SHARED -- we don't need to update the underlying file, nor do we
  need to see updates.
2011-04-01 11:23:12 +02:00
Andy Wingo
e8ab529d57 bump objcode version to 2.0; introduce minor-version compatibility
* libguile/_scm.h (SCM_OBJCODE_MAJOR_VERSION): Bump to 2.
  (SCM_OBJCODE_MINOR_VERSION): Reset to 0.
  (SCM_OBJCODE_MACHINE_VERSION_STRING, SCM_OBJCODE_COOKIE): Reorder so
  the minor version is the last byte.

* libguile/objcodes.c (make_objcode_by_mmap): Accept objcodes whose
  minor version is less than SCM_OBJCODE_MINOR_VERSION, not just equal
  to.
2011-02-13 22:02:01 +01:00
Andy Wingo
6ce3666ff2 for mmap objcodes, store the fd in the third word, as a scheme int
This leaves space for native code.

* libguile/objcodes.h (SCM_OBJCODE_NATIVE_CODE)
  (SCM_SET_OBJCODE_NATIVE_CODE): Reserve the fourth word of objcode for
  "native code", whatever that means.

* libguile/objcodes.c: Update a comment.
  (make_objcode_by_mmap): Put the fd in the third word.
2011-01-27 13:11:02 +01:00
Andy Wingo
f9654187b1 objcode type is an enumeration, not flags
* libguile/objcodes.h (SCM_OBJCODE_TYPE_MMAP)
  (SCM_OBJCODE_TYPE_BYTEVECTOR, SCM_OBJCODE_TYPE_SLICE)
  (SCM_OBJCODE_TYPE_STATIC): Enumerate objcode types instead of
  expressing them as flags.
  (SCM_OBJCODE_TYPE): Type is held in bits 8-15.
  (SCM_OBJCODE_FLAGS): Flags are now shifted by 16 bits, not 8.
  (SCM_MAKE_OBJCODE_TAG): New helper.

* libguile/continuations.c (STATIC_OBJCODE_TAG):
* libguile/control.c (STATIC_OBJCODE_TAG):
* libguile/foreign.c (STATIC_OBJCODE_TAG):
* libguile/gsubr.c (STATIC_OBJCODE_TAG):
* libguile/smob.c (STATIC_OBJCODE_TAG):
* libguile/objcodes.c (make_objcode_by_mmap, scm_c_make_objcode_slice)
  (scm_bytecode_to_objcode): : Use SCM_MAKE_OBJCODE_TAG.
2011-01-27 13:08:01 +01:00
Ludovic Courtès
4914fe1963 Use scm_from_latin1_stringn' in objcodes.c'.
* libguile/objcodes.c (make_objcode_by_mmap): Use
  `scm_from_latin1_stringn', not `scm_from_locale_stringn', to display
  the invalid cookie in the error case.
2011-01-27 00:16:54 +01:00
Andy Wingo
3d27ef4bd3 fix a number of assumptions that a pointer could fit into a long
* libguile/debug.c:
* libguile/eval.c:
* libguile/frames.c:
* libguile/objcodes.c:
* libguile/print.c:
* libguile/programs.c:
* libguile/read.c:
* libguile/struct.c:
* libguile/vm.c: Fix a number of instances in which we assumed we could
  fit a pointer into a long.
2010-11-19 15:22:43 +01:00
Andy Wingo
4b02bf47f4 objcodes.c comments
* libguile/objcodes.c: Comments from Noah Lavine
2010-08-18 23:00:42 -07:00
Noah Lavine
9a690dfb45 Whitespace fix
Add a space in libguile/objcodes.c to comply with the GNU Coding Standards.
2010-08-18 23:00:42 -07:00
Andy Wingo
44602b0868 rename libguile to libguile-@EFFECTIVE_VERSION@, currently libguile-2.0
* libguile/Makefile.am (lib_LTLIBRARIES): Instead of just "libguile.la",
  make "libguile-@EFFECTIVE_VERSION@.la". This allows multiple versions
  of Guile to be installed at once. See
  http://www106.pair.com/rhp/parallel.html for a rationale.

  (libguile_@GUILE_EFFECTIVE_VERSION@_la_CFLAGS):
  (libguile_@GUILE_EFFECTIVE_VERSION@_la_SOURCES):
  (EXTRA_libguile_@GUILE_EFFECTIVE_VERSION@_la_SOURCES):
  (libguile_@GUILE_EFFECTIVE_VERSION@_la_DEPENDENCIES):
  (libguile_@GUILE_EFFECTIVE_VERSION@_la_LIBADD):
  (libguile_@GUILE_EFFECTIVE_VERSION@_la_LDFLAGS): Fixup automake vars
  to include the effective version.
  (guile_LDADD): Fix up the spelling of libguile.

* libguile/bytevectors.c (scm_bootstrap_bytevectors):
* libguile/foreign.c (scm_register_foreign):
* libguile/i18n.c (scm_bootstrap_i18n):
* libguile/instructions.c (scm_bootstrap_instructions):
* libguile/objcodes.c (scm_bootstrap_objcodes):
* libguile/programs.c (scm_bootstrap_programs):
* libguile/vm.c (scm_bootstrap_vm): Register extensions using e.g.
  "libguile-2.0" as the libname -- i.e., including the effective version
  in the libname.

* module/ice-9/i18n.scm:
* module/rnrs/bytevector.scm:
* module/rnrs/io/ports.scm:
* module/system/foreign.scm:
* module/system/vm/instruction.scm:
* module/system/vm/objcode.scm:
* module/system/vm/program.scm:
* module/system/vm/vm.scm: When doing a load-extension for something in
  Guile, use the effective version also.

* meta/guile-2.0-uninstalled.pc.in (Libs):
* meta/guile-2.0.pc.in (Libs): Use -lguile-@EFFECTIVE_VERSION@. This
  change should mean that code built against Guile should not be
  affected by the libguile rename.

* guile-readline/Makefile.am (libguilereadline_v_@LIBGUILEREADLINE_MAJOR@_la_LIBADD):
* srfi/Makefile.am
  (libguile_srfi_srfi_1_v_@LIBGUILE_SRFI_SRFI_1_MAJOR@_la_LIBADD):
  (libguile_srfi_srfi_4_v_@LIBGUILE_SRFI_SRFI_4_MAJOR@_la_LIBADD):
  (libguile_srfi_srfi_13_14_v_@LIBGUILE_SRFI_SRFI_13_14_MAJOR@_la_LIBADD):
  (libguile_srfi_srfi_60_v_@LIBGUILE_SRFI_SRFI_60_MAJOR@_la_LIBADD):
* test-suite/standalone/Makefile.am (test_num2integral_LDADD):
  (test_round_LDADD):
  (libtest_asmobs_la_LIBADD):
  (libtest_ffi_la_LIBADD):
  (test_list_LDADD):
  (test_unwind_LDADD):
  (test_conversion_LDADD):
  (test_loose_ends_LDADD):
  (test_scm_c_read_LDADD):
  (test_scm_take_locale_symbol_LDADD):
  (test_scm_take_u8vector_LDADD):
  (libtest_extensions_la_LIBADD):
  (test_with_guile_module_LDADD):
  (test_scm_with_guile_LDADD): Fix up the spelling of libguile.la.
2010-03-16 21:20:34 +01:00
Andy Wingo
6f3b0cc29e tc7 tags for vm-related data
* libguile/tags.h (scm_tc7_frame, scm_tc7_objcode, scm_tc7_vm)
  (scm_tc7_vm_cont): Take more tc7s for VM-related data structures.

* libguile/evalext.c (scm_self_evaluating_p):
* libguile/gc.c (scm_i_tag_name):
* libguile/goops.c (scm_class_of, create_standard_classes):
* libguile/print.c (iprin1): Add cases for the new tc7s.

* libguile/frames.c:
* libguile/frames.h:
* libguile/objcodes.c:
* libguile/objcodes.h:
* libguile/vm.c:
* libguile/vm.h: Desmobify.

* libguile/vm.c (scm_vm_apply): Export to Scheme, because VM objects are
  no longer applicable.

* module/system/repl/command.scm (profile):
* module/system/vm/trace.scm (vm-trace):
* module/system/vm/vm.scm (vm-load): Call vm-apply to run a program in a
  VM instead of treating the VM as applicable.
2010-01-07 23:42:41 +01:00
Andy Wingo
a6029b97ea properly integrate vm bootstrapping into init.c
* libguile/Makefile.am (modinclude_HEADERS):
* libguile/vm-bootstrap.h: Remove vm-bootstrap.h.

* libguile/frames.c: No more vm-bootstrap.h.

* libguile/instructions.c (scm_init_instructions):
* libguile/objcodes.c (scm_init_objcodes):
* libguile/programs.c (scm_init_programs): No need to call
  scm_bootstrap_vm, init.c does that for us.

* libguile/vm.c (scm_bootstrap_vm): No need call e.g.
  scm_bootstrap_frames, init.c does that. Remove a twice-calling guard,
  should be unnecessary. Don't define the load-compiled subr here.

* libguile/load.c (scm_init_load): Define the load-compiled subr here.

* libguile/vm.h: Declare scm_bootstrap_vm here.

* libguile/init.c (scm_i_init_guile): Properly integrate VM
  bootstrapping into this file.
2010-01-07 23:42:41 +01:00
Andy Wingo
a268973767 reimplement srfi-4 vectors on top of bytevectors
* libguile/srfi-4.h:
* libguile/srfi-4.c (scm_make_srfi_4_vector): New function, exported by
  (srfi srfi-4 gnu).
* libguile/srfi-4.i.c: Removed.
* module/srfi/srfi-4.scm:
* module/srfi/srfi-4/gnu.scm: Reimplement srfi-4 vectors on top of
  bytevectors. The implementation is mostly in Scheme now.

* test-suite/tests/unif.test: Update to use (srfi srfi-4 gnu).

* libguile/bytevectors.c (bytevector_ref_c32, bytevector_ref_c64)
  (bytevector_set_c32, bytevector_set_c64): Fix some embarrassing bugs.
  Still need to do an upper bounds check.

* libguile/deprecated.h: Remove deprecated array functions:
  scm_i_arrayp, scm_i_array_ndim, scm_i_array_mem, scm_i_array_v,
  scm_i_array_base, scm_i_array_dims, and the deprecated macros:
  SCM_ARRAYP, SCM_ARRAY_NDIM, SCM_ARRAY_CONTP, SCM_ARRAY_MEM,
  SCM_ARRAY_V, SCM_ARRAY_BASE, SCM_ARRAY_DIMS.
* libguile/deprecated.c (scm_uniform_vector_read_x)
  (scm_uniform_vector_write, scm_uniform_array_read_x)
  (scm_uniform_array_write): Newly deprecated functions.

* libguile/generalized-arrays.c (scm_array_type): Remove the bytevector
  hack.

* libguile/objcodes.c (scm_bytecode_to_objcode, scm_objcode_to_bytecode):
  Rework to operate on bytevectors, as scm_make_u8vector now causes a
  module lookup, which can't be done e.g. when loading the VM boot
  program for psyntax-pp.go on a fresh bootstrap.

* libguile/objcodes.h (SCM_F_OBJCODE_IS_BYTEVECTOR):
  (SCM_OBJCODE_IS_BYTEVECTOR): s/U8VECTOR/BYTEVECTOR/.

* module/ice-9/boot-9.scm (the-scm-module): A terrible hack to pull in
  (srfi srfi-4), as the bindings are primarily there now. We'll worry
  about this later.
2010-01-07 22:06:56 +01:00
Ludovic Courtès
3dbbe28dfd Don't use GCC zero-length arrays.
* libguile/frames.c, libguile/objcodes.c, libguile/programs.c,
  libguile/vm-engine.c, libguile/vm-i-system.c, libguile/vm.c: Use
  `SCM_C_OBJCODE_BASE ()' instead of accessing the `base' field of
  `struct scm_objcode'.

* libguile/objcodes.h (struct scm_objcode)[base]: Remove.
2009-12-15 01:01:16 +01:00
Ludovic Courtès
5c8cefe591 Remove remaining uses of discouraged constructs.
* libguile/frames.c, libguile/instructions.c, libguile/objcodes.c,
  libguile/programs.c, libguile/throw.c, libguile/vm-i-scheme.c,
  libguile/vm.c:  Replace uses of discouraged constructs by their
  current counterparts.
2009-11-28 15:11:31 +01:00
Ludovic Courtès
1119e49368 Use Gnulib's `alignof' module.
* m4/gnulib-cache.m4: Use `alignof'.

* libguile/objcodes.c (scm_c_make_objcode_slice): Use `alignof_type'.
2009-11-16 09:23:47 +01:00
Ludovic Courtès
d7e7a02a62 Fix leaky behavior of `scm_take_TAGvector ()'.
* libguile/srfi-4.c (free_user_data): New function.

* libguile/srfi-4.i.c (scm_take_TAGvector): Register `free_user_data ()'
  as a finalizer for DATA.

* libguile/objcodes.c (scm_objcode_to_bytecode): Allocate with
  `scm_malloc ()' since the memory taken by `scm_take_u8vector ()' will
  eventually be free(3)d.

* libguile/vm.c (really_make_boot_program): Likewise.
2009-09-01 23:53:58 +02:00
Ludovic Courtès
fbb857a472 Merge branch 'master' into boehm-demers-weiser-gc
Conflicts:
	lib/Makefile.am
	libguile/Makefile.am
	libguile/frames.c
	libguile/gc-card.c
	libguile/gc-freelist.c
	libguile/gc-mark.c
	libguile/gc-segment.c
	libguile/gc_os_dep.c
	libguile/load.c
	libguile/macros.c
	libguile/objcodes.c
	libguile/programs.c
	libguile/strings.c
	libguile/vm.c
	m4/gnulib-cache.m4
	m4/gnulib-comp.m4
	m4/inline.m4
2009-08-18 00:06:45 +02:00
Ludovic Courtès
e3c9c676ae Uncomment run-time objcode alignment check.
This should now work thanks to the changes in
28b119ee3d ("make sure all programs are
8-byte aligned").  This commit is a follow-up to
ec99fe8ecb ("Add FIXMEs about misaligned
objcode-metas.").

* libguile/objcodes.c (scm_c_make_objcode_slice): Uncomment assertion
  that checks for proper alignment of PTR.

* module/language/assembly/compile-bytecode.scm (write-bytecode): Update
  comment about META's alignment.
2009-08-13 23:59:51 +02:00
Andy Wingo
86cfb42d56 include objcode cookie in the fallback path
* libguile/_scm.h (SCM_OBJCODE_COOKIE): Move the objcode cookie define
  here, so that load.c can use it. This is a private header.

* libguile/load.c (FALLBACK_DIR): Include the objcode cookie in the
  fallback path. Should fix problems when objcode changes incompatibly
  during the 1.9 series.

* libguile/objcodes.c: Adapt to SCM_OBJCODE_COOKIE move.

This should fix http://article.gmane.org/gmane.lisp.guile.devel/9059.
2009-08-11 20:25:44 +02:00
Andy Wingo
e5dc27b86d increase range of relative jumps by aligning blocks to 8-byte boundaries
* libguile/objcodes.c (OBJCODE_COOKIE): Bump again, as our jump offsets
  are now multiplied by 8.

* libguile/vm-i-system.c (BR): Interpret the 16-bit offset as a relative
  jump to the nearest 8-byte-aligned block -- increasing relative jump
  range from +/-32K to +/-240K.
  (mvra): Do the same for the mvra jump.

* libguile/vm.c (really_make_boot_program): Align the mvra.

* module/language/assembly.scm (align-block): New export, for aligning
  blocks.

* module/language/assembly/compile-bytecode.scm (write-bytecode): Emit
  jumps to the nearest 8-byte-aligned block. Effectively our range is 18
  bits in either direction. I would like to do this differently -- have
  long-br and long-br-if, and all the other br instructions go to 8 bits
  only. But the assembler doesn't have an appropriate representation to
  allow me to do this yet, so for now this is what we have.

* module/language/assembly/decompile-bytecode.scm (decode-load-program):
  Decode the 19-bit jumps.
2009-07-26 14:01:56 +02:00
Andy Wingo
28b119ee3d make sure all programs are 8-byte aligned
* libguile/objcodes.c (OBJCODE_COOKIE): Bump objcode cookie, as we added
  to struct scm_objcode.
* libguile/objcodes.h (struct scm_objcode): Add a uint32 after metalen
  and before base, so that if the structure has 8-byte alignment, base
  will have 8-byte alignment too. (Before, base was 12 bytes from the
  start of the structure, now it's 16 bytes.)

* libguile/vm-engine.h (ASSERT_ALIGNED_PROCEDURE): Add a check that can
  be turned on with VM_ENABLE_PARANOID_ASSERTIONS.
  (CACHE_PROGRAM): Call ASSERT_ALIGNED_PROCEDURE.

* libguile/vm-i-system.c (long-local-ref): Add a missing semicolon.

* libguile/vm.c (really_make_boot_program): Rework to operate directly
  on a malloc'd buffer, so that the program will be 8-byte aligned.

* module/language/assembly.scm (*program-header-len*): Add another 4 for
  the padding.
  (object->assembly): Fix case in which we would return (make-int8 0)
  instead of (make-int8:0). This would throw off compile-assembly.scm's
  use of addr+.

* module/language/assembly/compile-bytecode.scm (write-bytecode): Write
  out the padding int.

* module/language/assembly/decompile-bytecode.scm (decode-load-program):
  And pop off the padding int too.

* module/language/glil/compile-assembly.scm (glil->assembly): Don't pack
  the assembly, assume that assembly.scm has done it for us. If a
  program has a meta, pad out the program so that meta will be aligned.

* test-suite/tests/asm-to-bytecode.test: Adapt to expect programs to
  have the extra 4-byte padding int.
2009-07-26 12:57:11 +02:00
Andy Wingo
a5cfddd560 renumber vm ops (objcode cookie bumped)
* libguile/objcodes.c (OBJCODE_COOKIE): Bump.

* libguile/vm-i-loader.c:
* libguile/vm-i-scheme.c:
* libguile/vm-i-system.c: Renumber instructions, so I can have a bit
  more space to work.
2009-07-21 22:22:38 +02:00
Ludovic Courtès
ec99fe8ecb Add FIXMEs about misaligned objcode-metas.
* libguile/objcodes.c (scm_c_make_objcode_slice): Add comment about
  misaligned `objcode-meta'.

* module/language/assembly/compile-bytecode.scm (write-bytecode):
  Likewise.
2009-07-15 23:53:22 +02:00
Ludovic Courtès
b67cb2864e Const-qualify buffers passed to `scm_c_make_objcode_slice ()'.
* libguile/objcodes.c (scm_c_make_objcode_slice): Add `const' qualifier
  for PTR and DATA.

* libguile/objcodes.h: Update accordingly.
2009-07-15 23:12:43 +02:00
Ludovic Courtès
a823e7272e Fix typo in the compile-type verification of `OBJCODE_COOKIE'.
* libguile/objcodes.c: Fix `sizeof (OBJCODE_COOKIE)' assertion: the
  trailing 0 must not be taken into account, and multiple of 8 means the
  3 LSBs are clear.
2009-07-15 01:17:32 +02:00
Ludovic Courtès
07f99e1c6a Make sure at compile-time that `OBJCODE_COOKIE' has the right size.
* libguile/objcodes.c: Use `verify' to assert that the size of
  `OBJCODE_COOKIE' is a multiple of 8.
2009-07-15 01:03:35 +02:00
Ludovic Courtès
9e1a18db9f Augment `OBJCODE_COOKIE' to detect wrong endianness or word size.
* libguile/objcodes.c (OBJCODE_ENDIANNESS, _OBJCODE_STRINGIFY,
  OBJCODE_STRINGIFY, OBJCODE_WORD_SIZE): New macros.
  (OBJCODE_COOKIE): Use them.  The intent is that `.go' files compiled
  for a different endianness or word size are detected.
2009-07-15 00:55:33 +02:00
Andy Wingo
7c957b8657 fix error message for bad objcode cookie
* libguile/objcodes.c: Whoop-dee :)
2009-07-02 21:55:28 +02:00
Ludovic Courtès
376b6bd7a2 Fix `load-objcode' FD/mapping leak occurring upon failure.
* libguile/objcodes.c (make_objcode_by_mmap): Close FD and unmap ADDR
  upon failure.
2009-06-25 22:45:12 +02:00
Andy Wingo
60ed31d28b allow primcall ops to push 0 values
* libguile/objcodes.c (OBJCODE_COOKIE): Bump the objcode cookie. We'll
  be doing this on incompatible changes until 2.0.

* libguile/vm-i-scheme.c (set_car, set_cdr, slot_set): These
  instructions don't have natural return values -- so declare them that
  way, that they push 0 values.

* module/language/tree-il/compile-glil.scm (flatten): When compiling
  primitive calls, check `(instruction-pushes op)' to see how many
  values that instruction will push, and do something appropriate,
  instead of just assuming that all primcall ops push 1 value.
2009-06-24 15:14:00 +02:00
Andy Wingo
74fdb02e5e better error in make_objcode_by_mmap
* libguile/objcodes.c (make_objcode_by_mmap): Better error when the
  object header is incorrect.
2009-06-20 11:41:50 +02:00
Neil Jerram
53befeb700 Change Guile license to LGPLv3+
(Not quite finished, the following will be done tomorrow.
   module/srfi/*.scm
   module/rnrs/*.scm
   module/scripts/*.scm
   testsuite/*.scm
   guile-readline/*
)
2009-06-17 00:22:09 +01:00
Andy Wingo
560b9c256d adjust VM copyright notices to LGPL, use SCM_INTERNAL/API properly
* libguile/frames.c:
* libguile/frames.h:
* libguile/instructions.c:
* libguile/instructions.h:
* libguile/objcodes.c:
* libguile/objcodes.h:
* libguile/programs.c:
* libguile/programs.h:
* libguile/vm-bootstrap.h:
* libguile/vm-engine.c:
* libguile/vm-engine.h:
* libguile/vm-expand.h:
* libguile/vm-i-scheme.c:
* libguile/vm.c:
* libguile/vm.h: Update to use SCM_API and SCM_INTERNAL correctly. Adjust
  copyright to be the same as the copyright of Guile itself, which should
  be fine given that the FSF holds the whole thing.
2009-05-26 22:23:44 +02:00
Ludovic Courtès
da8b47478e Avoid uses of deprecated forms in the VM code.
Reported by Daniel Kraft <d@domob.eu>.

* libguile/frames.c, libguile/vm.c: Include <stdlib.h>, use `size_t'
  instead of `scm_sizet'.

* libguile/objcodes.c, libguile/programs.c, libguile/vm-engine.c,
  libguile/vm-i-loader.c, libguile/vm-i-system.c: Use `scm_list_X ()'
  instead of the deprecated `SCM_LISTX ()'.
2009-04-05 20:15:11 +02:00
Andy Wingo
60ae5ca2a3 frame, program, objcode, etc inits use load-extension
* libguile/extensions.h: Define a scm_t_extension_init_func.

* libguile/frames.c:
* libguile/instructions.c:
* libguile/objcodes.c:
* libguile/programs.c:
* libguile/vm.c: Register extension init funcs. Should play nicer with a
  static Guile, in addition to working on Darwin with non-default
  installation prefixes without munging DYLD_LIBRARY_PATH.

* module/system/vm/frame.scm:
* module/system/vm/instruction.scm:
* module/system/vm/objcode.scm:
* module/system/vm/program.scm:
* module/system/vm/vm.scm: Use load-extension.
2009-03-27 18:40:15 -07:00