15 Commits (2432c0d283883ea87b5f2e70eed36971d74d44df)

Author SHA1 Message Date
Andre Richter 2432c0d283
Revert to assembly boot code
It is too risky to rely on the compiler to not insert any operations using the
stack.

Having a stack-setting call in Rust using the cortex-a crate as the first action
in a Rust-only _start() function does not work if you're subsequently using the
stack, because the compiler often inserts the operations to make room on the
stack to prepare a function call BEFORE the call to set the stack, which crashes
the boot process.

Hence, keep on using a small piece of assembly boot code throughout.
3 years ago
Andre Richter 44bb3f8942
Update copyright year 4 years ago
Andre Richter 208f547f29
Remove needless extern C 4 years ago
Andre Richter 27a1d10cc3
Remove UB in linker script symbol <-> Rust handover 4 years ago
Andre Richter 37b9d1435e
Move anything wrt linker symbols to bsp::memory
Also, some rewording of data types.
4 years ago
Andre Richter 175d72ae8b
Refactor tutorial 03 4 years ago
Andre Richter c64dd1197a
For educational purposes, use own zero_bss(). 5 years ago
Andre Richter e690f8e7e4
Copyright bump to 2020 🎆 5 years ago
Andre Richter 034e1f01d8
rename init() -> runtime_init() 5 years ago
Andre Richter 54137e8b38
Relicense as dual MIT OR Apache-2.0 5 years ago
Andre Richter 2933bcf162
Separate init from main 5 years ago
Andre Richter 56a650397d
Having a little code formatting party 5 years ago
Andre Richter 0ca114b408
Streamlining 5 years ago
Andre Richter e7ae509376
minor streamlining 5 years ago
Andre Richter 3d8f12f619
Add code for tutorial 03 5 years ago