* module/system/vm/linker.scm (make-string-table): Rework to be a
stateful object instead of a function object. Works better in this
case. Adapt users.
(string-table-intern!): Rename from string-table-intern, and just
return the index of the string.
(link-string-table!): Rename from link-string-table, and set a flag to
prevent interning strings after linking, as that's not going to work
well.
* module/language/objcode/elf.scm (bytecode->elf): Adapt.
* module/system/vm/elf.scm: Add commentary.
(make-elf): Add a constructor similar to make-elf-segment and
make-elf-section.
(write-elf32-header, write-elf64-header, write-elf-header): Take an
<elf> instead of all the fields separately.
(<elf-segment>, <elf-section>): Add "index" property. Adapt
constructors accordingly.
* module/language/objcode/elf.scm (bytecode->elf): Arrange to set the
section indexes when creating ELF sections.
* module/system/vm/linker.scm (fold-values): New helper.
(alloc-segment, relocate-section-header): Arrange to set segment and
section indexes.
(find-shstrndx): New helper, replaces compute-sections-by-name. Now
that sections know their indexes, this is easier.
(allocate-elf, write-elf): New helpers, factored out of link-elf.
Easier now that sections have indexes.
(link-elf): Simplify. Check that the incoming objects have sensible
numbers.
* test-suite/tests/linker.test: Update to set #:index on the linker
objects.
* module/Makefile.am:
* module/system/vm/linker.scm: New file, split out of (system vm elf).
(make-string-table, string-table-intern): Export under their bare
names, instead of make-elf-string-table and elf-string-table-intern.
* module/system/vm/elf.scm: Remove linking capabilities.
(string-table-ref): Export.
* module/language/objcode/elf.scm (bytecode->elf): Adapt to use (system
vm linker).
* test-suite/tests/linker.test: New test.
* libguile/objcodes.c: Change to expect objcode on disk to be embedded
in ELF instead of having the funky cookie.
(to_native_order): Use already existing SCM_BYTE_ORDER style byte
order instead of chars.
(bytecode_to_objcode): No need for word_size arg.
(scm_bytecode_to_objcode, scm_objcode_to_bytecode): Take optional
endianness arg instead of sometimes using target-endianness.
(scm_load_objcode, scm_write_objcode, scm_bytecode_to_native_objcode):
Remove.
* libguile/objcodes.h: Adapt.
* libguile/vm.c (scm_load_compiled_with_vm): Use
scm_load_thunk_from_file.
(make_boot_program): Adapt to use scm_bytecode_to_objcode with
endianness arg.
* module/Makefile.am (OBJCODE_LANG_SOURCES): Add (language objcode
elf).
* module/language/objcode/elf.scm: New module, embeds objcode in ELF.
* module/language/bytecode/spec.scm (compile-objcode):
(decompile-objcode): Use (target-endianness).
* module/language/objcode/spec.scm: use (language objcode elf) for
write-objcode.
* module/scripts/disassemble.scm (disassemble):
* module/system/repl/command.scm (disassemble-file): Use
load-thunk-from-file.
* module/system/vm/objcode.scm: Remove load-objcode and write-objcode.
* test-suite/tests/asm-to-bytecode.test (test-target): Adapt to the new
ELF world.
