#
# Cargo Configuration for the https://github.com/rp-rs/rp-hal.git repository.
#
# Copyright (c) The RP-RS Developers, 2021
#
# You might want to make a similar file in your own repository if you are
# writing programs for Raspberry Silicon microcontrollers.
#
# This file is MIT or Apache-2.0 as per the repository README.md file
#

[build]
# Set the default target to match the Cortex-M0+ in the RP2040
target = "thumbv6m-none-eabi"

# Target specific options
[target.thumbv6m-none-eabi]
# Pass some extra options to rustc, some of which get passed on to the linker.
#
# * linker argument --nmagic turns off page alignment of sections (which saves
#   flash space)
# * linker argument -Tlink.x tells the linker to use link.x as the linker
#   script. This is usually provided by the cortex-m-rt crate, and by default
#   the version in that crate will include a file called `memory.x` which
#   describes the particular memory layout for your specific chip. 
# * inline-threshold=5 makes the compiler more aggressive and inlining functions
# * no-vectorize-loops turns off the loop vectorizer (seeing as the M0+ doesn't
#   have SIMD)
rustflags = [
    "-C", "link-arg=--nmagic",
    "-C", "link-arg=-Tlink.x",
    "-C", "inline-threshold=5",
    "-C", "no-vectorize-loops",
]

# This runner will make a UF2 file and then copy it to a mounted RP2040 in USB
# Bootloader mode:
runner = "elf2uf2-rs -d"

# This runner will find a supported SWD debug probe and flash your RP2040 over
# SWD:
# runner = "probe-run --chip RP2040"