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Ludovic Courtès 3cd64feb2e linker: Do not store entire ELF in memory when writing to a file. This reduces the amount of memory that needs to be allocated while writing the ELF file to disk. Note: We're abusing #:page-aligned? in 'link-elf' to choose whether to return a bytevector or a procedure. * module/system/vm/linker.scm (process-reloc): Subtract SECTION-OFFSET when writing to BV. (write-linker-object): Pass BV directly to the linker object writer. (link-elf): When PAGE-ALIGNED? is false, call 'bytevector-slice' from here. When it is true, return a procedure that takes a port and writes to it, without having to allocate a bytevector for the whole ELF container. * module/language/bytecode/spec.scm (bytecode->value): Handle X being a procedure instead of a bytevector. (bytecode) <#:printer>: Likewise. * test-suite/tests/linker.test (link-elf-with-one-main-section): Pass #:page-aligned? #f.	2023-01-17 17:49:05 +01:00
..
spec.scm	linker: Do not store entire ELF in memory when writing to a file.	2023-01-17 17:49:05 +01:00

Ludovic Courtès 3cd64feb2e linker: Do not store entire ELF in memory when writing to a file.

This reduces the amount of memory that needs to be allocated while
writing the ELF file to disk.

Note: We're abusing #:page-aligned? in 'link-elf' to choose whether to
return a bytevector or a procedure.

* module/system/vm/linker.scm (process-reloc): Subtract SECTION-OFFSET
when writing to BV.
(write-linker-object): Pass BV directly to the linker object writer.
(link-elf): When PAGE-ALIGNED? is false, call 'bytevector-slice' from
here.  When it is true, return a procedure that takes a port and writes
to it, without having to allocate a bytevector for the whole ELF
container.
* module/language/bytecode/spec.scm (bytecode->value): Handle X being a
procedure instead of a bytevector.
(bytecode) <#:printer>: Likewise.
* test-suite/tests/linker.test (link-elf-with-one-main-section): Pass
 #:page-aligned? #f.

2023-01-17 17:49:05 +01:00

spec.scm

linker: Do not store entire ELF in memory when writing to a file.

2023-01-17 17:49:05 +01:00