tree 1f91f208a83953eaf632f636f9461795a93fef96
parent 968fe6ba8984ec7ed1e515f90a701029ae67571a
parent fdd0c3622d05a0bff9e0f4b7b1812df218dca291
author bors[bot] <26634292+bors[bot]@users.noreply.github.com> 1611096510 +0000
committer GitHub <noreply@github.com> 1611096510 +0000
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsBcBAABCAAQBQJgB2G+CRBK7hj4Ov3rIwAAdHIIAIDDLZM7RSO+lVGe/L0cZK2q
 wDPVzpcDkgihN1AKTrayekcP3S92+8Vzql3IAcfRqLFsUvdcm25XtFiYFm2Wdd5w
 z1IA6T08xIKUiUXzaaL85Gh7u2LVYm1vwmiy6ijLQWrbAnBVU4LF+PgHQcnj5zwZ
 7ahOiOb/gScLeBOPySVGDvS5EoJ7NaO3VVi1jHCl4WOv9X5poc/1l0SI3YdvjB1N
 SEvZ1rLFEdjjv09DOOmfh5CC5Ip8JIwpalg8gw2B90egH5sVEGq4cl1OQ5KIgBZF
 qnJ8cexwMlGMj6a9PmprvX/b/OJaaKIkrWJ2Mt7w1wrmoNf3LG7PPEzkvPzpe9c=
 =xOsW
 -----END PGP SIGNATURE-----
 

Merge #268

268: Add the libtock_runtime crate and platform switching. r=hudson-ayers a=jrvanwhy

This is the first `libtock_runtime` PR. It contains:

A. `Cargo.toml` for `libtock_runtime`
B. Automatic linker script identification.

The automatic linker script identification is based on `libtock-rs`'s current `build.rs` (in the root of the repository), but makes the following improvements:

A. Better supports out-of-tree platforms by adding a cargo feature to disable linker script identification. `libtock-rs`'s build.rs always emits a warning of the PLATFORM variable is not specified.
B. Improves error handling, particularly around builds in paths we cannot support (e.g. if `cargo` is executed in a directory whose name contains a newline character).
C. Moves the layout file location into `cargo`'s `OUT_DIR`, which is the only directory build scripts are *supposed* to modify.
D. Removes support for the `platform` file to select a platform. `libtock-rs` looked for a `platform` file in its own source to identify the platform it is run in -- I'm not really sure how this was supposed to be used.

Co-authored-by: Johnathan Van Why <jrvanwhy@google.com>