Rewrite build system #51
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51: Rewrite build system r=phil-opp a=phil-opp - [x] Blocked on rust-lang/rust#59351 - [x] Blocked on rust-lang/cargo#6778 Fixes #33 Fixes #48 Co-authored-by: Philipp Oppermann <dev@phil-opp.com>
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34: Rewrite for new bootloader build system r=phil-opp a=phil-opp This PR rewrites the `bootimage` crate to work with the new bootloader build system proposed in rust-osdev/bootloader#51. It also removes support for some old configuration options and for the `bootloader_precompiled` crate. See the changelog updates for more information. Note that this new version will only work with bootloader `0.5.0` or later. Todo: - [x] Add a `cargo-bootimage` executable - [x] Create a `bootimage runner` subcommand - [x] Create a `bootimage tester` subcommand - [x] Blocked on rust-osdev/bootloader#51 - [x] Rustdoc - [x] Mention new runner ~/tester~ in the Readme - [x] Command line help for new commands - [x] Error message for older bootloader versions (with old build system) - [x] Update changelog Co-authored-by: Philipp Oppermann <dev@phil-opp.com>
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This implements a new build system for the bootloader. Instead of using a
builderexecutable, we now use a build script that expects aKERNELenvironment variable that points to the kernel ELF file. This way, we can directly access the kernel binary in the linker script and don't need hacks to append the kernel manually (see #33 for the original proposal).Instead of converting the kernel ELF file to a binary manually, we use the
llvm-objcopytool to perform the conversion. This tool ships with thellvm-tools-previewrustup component, which is now required for building this crate.This is a breaking change, so this requires a bump of the minor version number.
.jsonrust-lang/cargo#6778Fixes #33
Fixes #48