rename crate feature std to alloc

Author: phip1611

multiboot2-header/Cargo.toml

@@ -28,10 +28,9 @@ repository = "https://github.com/rust-osdev/multiboot2"
 documentation = "https://docs.rs/multiboot2-header"
 
 [features]
-# by default, builder is included
 default = ["builder"]
-std = []
-builder = ["std"]
+alloc = []
+builder = ["alloc"]
 
 [dependencies]
 # used for MBI tags

multiboot2-header/Changelog.md

@@ -2,6 +2,7 @@
 
 ## Unreleased
 - MSRV is 1.56.1
+- renamed the `std` feature to `alloc`
 
 ## v0.2.0 (2022-05-03)
 - **BREAKING** renamed `EntryHeaderTag` to `EntryAddressHeaderTag`

multiboot2-header/README.md

@@ -15,10 +15,11 @@ What this library is good for:
 What this library is not optimal for:
 - compiling a Multiboot2 header statically into an object file using only Rust code
 
-## Features and Usage in `no_std`
-This library is always `no_std`. However, the `builder`-feature requires the `alloc`-crate
-to be available. You need the `builder` only if you want to construct new headers. For parsing,
-this is not relevant.
+## Features and `no_std` Compatibility
+This library is always `no_std`. However, the default `builder`-feature requires
+the `alloc`-crate to be available. You need the `builder` only if you want to
+construct new headers at run time. For parsing, this is not relevant, and you
+can deactivate the default feature.
 
 ```toml
 # without `builder`-feature (and without `alloc`-crate)

multiboot2/Cargo.toml

@@ -23,6 +23,7 @@ keywords = [
     "Multiboot2",
     "kernel",
     "boot",
+    "bootloader",
 ]
 # without this, sometimes crates.io doesn't show the preview of the README
 # I expeciended this multiple times in the past
@@ -32,10 +33,9 @@ repository = "https://github.com/rust-osdev/multiboot2"
 documentation = "https://docs.rs/multiboot2"
 
 [features]
-# by default, builder is included
 default = ["builder"]
-std = []
-builder = ["std"]
+alloc = []
+builder = ["alloc"]
 # Nightly-only features that will eventually be stabilized.
 unstable = []
 

multiboot2/README.md

@@ -10,6 +10,12 @@ used in a Multiboot2-kernel.
 
 It follows the Multiboot 2.0 specification at https://www.gnu.org/software/grub/manual/multiboot2/multiboot.html and the ELF 64 specification at http://www.uclibc.org/docs/elf-64-gen.pdf.
 
+## Features and `no_std` Compatibility
+This library is always `no_std`. However, the default `builder`-feature requires
+the `alloc`-crate to be available. You need the `builder` only if you want to
+construct new boot information structures at run time. For parsing, this is not
+relevant, and you can deactivate the default feature.
+
 ## Background: The Multiboot 2 Information Structure
 The Multiboot information structure looks like this: