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Merge pull request #102 from justahero/update-build-target-cargo-config

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Update entry on building program in workshop book
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Jonas Schievink 2020-09-08 13:45:39 +02:00 committed by GitHub
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8
embedded-workshop-book/src/building-program.md
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@ -5,7 +5,7 @@ The default in a Cargo project is to compile for the host (native compilation).
``` text
# .cargo/config
[build]
target = "thumbv7em-none-eabi" # = ARM Cortex-M4
target = "thumbv7em-none-eabihf" # = ARM Cortex-M4
```
✅ Inside the folder `beginner/apps`, use the following command to cross compile the program to the ARM Cortex-M4 architecture.
@ -14,12 +14,12 @@ target = "thumbv7em-none-eabi" # = ARM Cortex-M4
$ cargo build --bin hello
```
The output of the compilation process will be an ELF (Executable and Linkable Format) file. The file will be placed in the `target/thumbv7em-none-eabi` directory.
The output of the compilation process will be an ELF (Executable and Linkable Format) file. The file will be placed in the `target/thumbv7em-none-eabihf` directory.
✅ Run `$ file target/thumbv7em-none-eabi/debug/hello` and compare if your output is as expected.
✅ Run `$ file target/thumbv7em-none-eabihf/debug/hello` and compare if your output is as expected.
Expected output:
``` console
$ file target/thumbv7em-none-eabi/debug/hello
$ file target/thumbv7em-none-eabihf/debug/hello
hello: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), statically linked, with debug_info, not stripped
```