Unable to build LED roulette first example

[plusangel]

Dear all,

I need your valuable on the following. I have tried it in both Win10 and Ubuntu18, but let me focus on Win10.

My versions are:

rustc 1.41.0 (5e1a79984 2020-01-27)
itm v0.3.1
cargo-binutils v0.1.7

After executing: cargo build --target thumbv7em-none-eabihf I got the following output:

   Compiling semver-parser v0.7.0
   Compiling typenum v1.11.2
   Compiling proc-macro2 v1.0.8
   Compiling unicode-xid v0.2.0
   Compiling cortex-m v0.6.2
   Compiling stable_deref_trait v1.1.1
   Compiling syn v1.0.15
   Compiling vcell v0.1.2
   Compiling cortex-m-rt v0.6.12
   Compiling void v1.0.2
   Compiling nb v0.1.2
   Compiling cortex-m v0.5.10
   Compiling stm32f30x v0.7.1
   Compiling aligned v0.2.0
   Compiling r0 v0.2.2
   Compiling f3 v0.6.1
   Compiling panic-halt v0.2.0
   Compiling volatile-register v0.2.0
   Compiling embedded-hal v0.2.3
   Compiling semver v0.9.0
   Compiling rustc_version v0.2.3
   Compiling bare-metal v0.2.5
   Compiling cast v0.2.3
   Compiling quote v1.0.2
   Compiling generic-array v0.13.2
   Compiling generic-array v0.12.3
   Compiling generic-array v0.11.1
   Compiling l3gd20 v0.2.0
   Compiling as-slice v0.1.3
   Compiling lsm303dlhc v0.2.0
   Compiling aligned v0.3.2
   Compiling cortex-m-rt-macros v0.1.8
   Compiling stm32f30x-hal v0.2.0
   Compiling aux5 v0.1.0 (C:\Users\angelos\Documents\discovery\src\05-led-roulette\auxiliary)
   Compiling led-roulette v0.1.0 (C:\Users\angelos\Documents\discovery\src\05-led-roulette)
    Finished dev [unoptimized + debuginfo] target(s) in 58.05s

Then I move to the target folder where I can find it in the root of the repo, similar to that: C:\Users\angelos\Documents\discovery\target\thumbv7em-none-eabihf\debug

and then when I run: cargo readobj --target thumbv7em-none-eabihf --bin led-roulette -- -file-headers I got

   Compiling stable_deref_trait v1.1.1
   Compiling vcell v0.1.2
   Compiling void v1.0.2
   Compiling nb v0.1.2
   Compiling aligned v0.2.0
   Compiling r0 v0.2.2
   Compiling panic-halt v0.2.0
   Compiling typenum v1.11.2
   Compiling volatile-register v0.2.0
   Compiling bare-metal v0.2.5
   Compiling cast v0.2.3
   Compiling embedded-hal v0.2.3
   Compiling cortex-m-rt v0.6.12
   Compiling generic-array v0.12.3
   Compiling generic-array v0.13.2
   Compiling generic-array v0.11.1
   Compiling l3gd20 v0.2.0
   Compiling lsm303dlhc v0.2.0
   Compiling as-slice v0.1.3
   Compiling aligned v0.3.2
   Compiling cortex-m v0.6.2
   Compiling cortex-m v0.5.10
   Compiling stm32f30x v0.7.1
   Compiling stm32f30x-hal v0.2.0
   Compiling f3 v0.6.1
   Compiling aux5 v0.1.0 (C:\Users\angelos\Documents\discovery\src\05-led-roulette\auxiliary)
   Compiling led-roulette v0.1.0 (C:\Users\angelos\Documents\discovery\src\05-led-roulette)
    Finished dev [unoptimized + debuginfo] target(s) in 30.00s
error: missing field `package`

Then obviously, even I tried to flash it's not working...

Any ideas? Do you need more details? What I'm doing wrong? I have tried various boards like F3 but also STM32F103 - and get exactly the same behaviour.

[tomasz-rozanski]

This command is looking for a package section from the cargo.toml file. Just run it from the project folder, src\05-led-roulette.

If this doesn't help, try cloning the repository once again, with symbolic links turned on: git clone -c core.symlinks=true <URL>

[plusangel]

I tried both and I get:

C:\Users\angelos\Documents\discovery\src\05-led-roulette>cargo readobj --target thumbv7em-none-eabihf --bin led-roulette -- -file-headers
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
error: The directory name is invalid. (os error 267)

Strange...I feel that I haven't missed something from the documentation though.

Update: I tried cargo generate --git https://github.com/rust-embedded/cortex-m-quickstart from the other guide and updated to led-roulette - seems that works. So the cargo generator looks ok.

[tomasz-rozanski]

Do you have your code on GitHub? It would be a huge help to be able to analyze the whole project.

[plusangel]

No, I just follow the tutorial. However, I was able to experiment using the cortex-m-quickstart and importing the led-roulette code

[tomasz-rozanski]

Clearly, there's a problem with symbolic links in your system. Check if the Developer Mode is turned on in Windows. Until then, try this workaround:

cargo readobj ..\..\target\thumbv7em-none-eabihf\debug\led-roulette -- -file-headers`