thumbv8.main -inline-asm = "undefined symbol: __basepri_r"

[japaric]

STR

Start from the cortex-m-quickstart template and write:

#[entry]
fn main() -> ! {
    let x = basepri::read();

    loop {}
}

compile for the thumbv8m.main-none-eabi target; you get:

error: linking with `rust-lld` failed: exit code: 1
  = note: rust-lld: error: undefined symbol: __basepri_r

The thumbv8m.main-none-eabi.a archive / binary blob is missing __basepri_r and other symbols. asm-v7.s should be compiled for this target and included in the archive.

Metadata

$ rustc -V
rustc 1.36.0 (a53f9df32 2019-07-03)

[JJJollyjim]

I believe this was resolved as part of #161

[korken89]

This should be solved now