Commit Graph

128 Commits

Author SHA1 Message Date
Andre Richter
3f92aab6e7
Bump extern crates
cortex-a -> 2.2.1
panic-abort -> 0.3.1
2018-10-02 23:47:09 +02:00
Andre Richter
6d135ee441
Makefile: Don't delete kernel8 2018-10-02 23:34:01 +02:00
Andre Richter
37fe055082
Alignment. Binaries from newer Rust version. 2018-10-02 23:16:04 +02:00
Andre Richter
68de789d15
0D: Instruction caching and better benchmark function.
The previous benchmark function had a few flaws. First of all, it wasn't
idiomatic Rust, because we used a loop construct that you would expect in C.
Revamped that by using an iterator. Also, the previous benchmark got heavily
optimized by the compiler, which unrolled the inner loop it into a huge sequence
of consecutive loads and stores, resulting in lots of instructions that needed
to be fetched from DRAM. Additionally, instruction caching was not turned on.

The new code compiles into two tight loops, fully leveraging the power of the I
and D caches, and providing an great showcase.
2018-10-02 22:59:27 +02:00
Andre Richter
c65e2e56cd
Add tutorial 0D_cache_performance 2018-10-01 22:04:11 +02:00
Andre Richter
bf2a1fff7e
First part of tutorial: 0C_virtual_memory 2018-09-14 00:16:10 +02:00
Andre Richter
60db699637
Add macOS 2018-09-05 10:13:01 +02:00
Andre Richter
4b1bac7509
First part of tutorial: 0B_exception_levels
- Added code
- Missing: README
2018-09-01 18:07:30 +02:00
Andre Richter
08235093c1
Bump cortex-a to v2.0.1 2018-08-26 21:37:46 +02:00
Andre Richter
1ca70bcd56
Check-in kernel8
Useful for assembly inspection via objdump
2018-08-26 20:34:37 +02:00
Andre Richter
4364173386
New todo entry 2018-08-26 20:33:12 +02:00
Andre Richter
c156a32411
rust-fmt all 2018-08-26 14:02:07 +02:00
Andre Richter
633510262d
Fix wrong Stack address
Luckily, this error was non-manifest.
2018-08-26 13:58:12 +02:00
Andre Richter
8fcfc76e74
Add TODO list 2018-08-26 13:51:40 +02:00
Andre Richter
5ca70912fb
Remove unused cortex-a imports.
Why doesn't clippy catch this...?
2018-08-24 08:29:13 +02:00
Andre Richter
bc32b52f96
Add gitignore 2018-08-24 00:15:31 +02:00
Andre Richter
21e181c63a
Bump cortex-a to v1.1.0 2018-08-24 00:13:53 +02:00
Andre Richter
0ededdc791
Bump register to v0.2.0 2018-08-23 23:53:55 +02:00
Andre Richter
6ba72c8625
Travis; I always forget about travis... 2018-08-21 22:06:32 +02:00
Andre Richter
c19993934c
Use cargo-xbuild
Also, have a config where the individual projects can reuse the same
sysroot.
2018-08-21 21:22:50 +02:00
Andre Richter
8175639399
Correct linker issues
The new target is not automatically using PIC.

Need some linker script corrections for errors that were hiding
previously, so that we don't accidentally generate alignment
exceptions on bss size variables that cause the target to fail.
2018-08-20 17:07:18 +02:00
Andre Richter
0d75a8eaf3
Use aarch64-unknown-none target in nightly 🎉
We have a generic target for writing bare-metal code
for 64-bit ARM architectures in upstream Rust now.

Use it to get rid of the fully custom target spec.

\o/
2018-08-19 23:42:24 +02:00
Andre Richter
5a71b00422
Merge pull request #4 from wizofe/fix/typo
Typo: partition
2018-08-19 01:01:29 +02:00
Andre Richter
c5981b6ccd
Don't invoke clippy via xargo
Despite invoking clippy with xargo, it wasnt actually using the custom
target, so we don't need xargo here for now...

The target argument was missing anyways. Using it throws an error.
Needs some more investigation.
2018-08-19 00:42:36 +02:00
Ioannis Valasakis
89aacd85f3 Typo: partition 2018-08-18 22:29:00 +00:00
Andre Richter
969704d498
Use correct sequence of MMIO timer reads
As discussed in #2
2018-08-12 17:06:30 +02:00
Andre Richter
0bd363f375
Sync with the newest Embedonomicon
https://github.com/rust-embedded/embedonomicon

Closes #3
2018-08-12 16:41:45 +02:00
Andre Richter
1b8b78d0c8
Use precompiled clippy 2018-08-12 16:39:52 +02:00
Andre Richter
907f8dc75c
Remove pending C tutorials
Presence of these files caused github to show the project as a C
project.
2018-08-12 16:39:39 +02:00
Andre Richter
6266cd38c6
Install clippy from git.
Better chances of compiling on nightly.
2018-07-16 21:59:58 +02:00
Andre Richter
3693bd6e8b
typos 2018-07-16 21:49:40 +02:00
Andre Richter
369dffa457
Make it compile on newest nightly 2018-07-16 21:37:40 +02:00
Andre Richter
747e902761
Rewrite for register-rs.
We now have the same API for MMIO and CPU registers.
Makes the code more concise, inntuitive, and improves readability.

https://crates.io/crates/register
2018-07-16 21:24:33 +02:00
Andre Richter
ea39d2ae1f
Update travis for llvm-tools from Rust 2018-06-29 20:15:11 +02:00
Andre Richter
323a346b07
Use llvm objcopy from rust toolchain 🎉
Its the last missing util we needed to be a rust-toolchain-only project.

https://github.com/rust-lang/rust/pull/50336
https://github.com/japaric/cargo-binutils
2018-06-29 19:48:42 +02:00
Andre Richter
038c8ac55c
Add travis CI 2018-06-17 14:25:22 +02:00
Andre Richter
69d9890c4a
Update #[lang = "panic_fmt"] -> #[panic_implementation]
More info: https://users.rust-lang.org/t/psa-breaking-change-panic-fmt-language-item-removed-in-favor-of-panic-implementation/17875
2018-06-17 13:40:30 +02:00
Andre Richter
8a3f6f5f15
utils: Exit early on build failure 2018-06-17 13:20:25 +02:00
Andre Richter
99f4dc24b3
Change dockcross path to newest upstream release 2018-06-17 13:14:03 +02:00
Andre Richter
27a5f64156
Dockcross binaries path changed 2018-05-16 00:28:21 +02:00
Andre Richter
fd4c62f9e8
Fix strange dockcross path changes
There were some strange changes to the aarch64 dockross image lately.
Looks like unintentional path changes. I'll adapt for now, but
hopefully this gets reverted to a sane state soon.

Referenece:
https://github.com/dockcross/dockcross/pull/221#issuecomment-387188681
2018-05-07 22:44:44 +02:00
Andre Richter
1b2fc525ea Add tutorial 0A_power 2018-04-23 22:05:22 +02:00
Andre Richter
e6f823a224 Add timer tutorial
- Also, upgrade to new `cortex-a` 0.1.3 implementation.
2018-04-19 18:46:24 +02:00
Andre Richter
b2ddb8600d Update README.md 2018-04-13 22:39:26 +02:00
Andre Richter
a3fef3844d Add deref comment to tutorial 3 as well
This is the first time reader will encounter it.
2018-04-13 22:11:42 +02:00
Andre Richter
395d82908f Add some utility scripts 2018-04-13 22:07:30 +02:00
Andre Richter
0ce1cde72c Add Deref trait in the spirit of cortex-m peripherals
Improves code readability; Reduces need for unsafe blocks on register
reads.

https://github.com/japaric/cortex-m/blob/master/src/peripheral/mod.rs
2018-04-13 22:05:50 +02:00
Andre Richter
a584fa4dfa mobx: Remove unnessecary mut 2018-04-13 21:27:26 +02:00
Andre Richter
cb216785b3 01_bareminimum: Use panic-abort crate instead of own handler 2018-04-13 21:25:22 +02:00
Andre Richter
bf47dade3d run cargo fmt on repo 2018-04-12 22:27:49 +02:00