thejpster

~/rusttest $ cat .cargo/config.toml 
[target.x86_64-unknown-linux-gnu]
linker = "gccfoo"

~/rusttest $ cat testbin/.cargo/config.toml 
[target.x86_64-unknown-linux-gnu]
linker = "gccbar"

~/rusttest $ cd testbin
~/rusttest/testbin $ cargo run

thejpster

diff --color -r cortex-m-07x-branch/asm/inline.rs cortex-m-master/cortex-m/asm/inline.rs
75c75
<     asm!("dmb", options(nomem, nostack, preserves_flags));
---
>     asm!("dmb", options(nostack, preserves_flags));
82c82
<     asm!("dsb", options(nomem, nostack, preserves_flags));
---
>     asm!("dsb", options(nostack, preserves_flags));
89c89

thejpster

diff --color -r cortex-m-07x-branch/build.rs cortex-m-master/cortex-m/build.rs
30a31,40
>     println!("cargo:rustc-check-cfg=cfg(armv6m)");
>     println!("cargo:rustc-check-cfg=cfg(armv7m)");
>     println!("cargo:rustc-check-cfg=cfg(armv7em)");
>     println!("cargo:rustc-check-cfg=cfg(armv8m)");
>     println!("cargo:rustc-check-cfg=cfg(armv8m_base)");
>     println!("cargo:rustc-check-cfg=cfg(armv8m_main)");
>     println!("cargo:rustc-check-cfg=cfg(cortex_m)");
>     println!("cargo:rustc-check-cfg=cfg(has_fpu)");

thejpster

cargo semver-checks
    Building cortex-m v0.7.4 (current)
       Built [   5.133s] (current)
     Parsing cortex-m v0.7.4 (current)
      Parsed [   0.014s] (current)
    Building cortex-m v0.7.4 (baseline)
       Built [   5.453s] (baseline)
     Parsing cortex-m v0.7.4 (baseline)
      Parsed [   0.007s] (baseline)
    Checking cortex-m v0.7.4 -> v0.7.4 (no change)

thejpster

#let board(time, content) = [
	#set text(
		font: "ModeSeven",
		size: 18pt,
	)
	#set page(
	  width: 20cm,
	  height: 15cm,
	  margin: (top: 48pt, bottom: 26pt, left: 0.4cm, right: 0.4cm),
	  fill: black,

thejpster

#0  window_overflow_trap_handler () at ../../../cpukit/score/cpu/sparc/window.S:57
#1  0x40007b00 in compiler_builtins::int::shift::__ashldi3::__ashldi3 (a=47483648, b=32) at src/macros.rs:572
#2  0x40007274 in core::ops::bit::{impl#335}::shl (self=47483648, other=32) at /home/jonathan/Documents/rust-lang/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/core/src/ops/bit.rs:470
#3  0x400077dc in compiler_builtins::int::HInt::widen_hi<u32> (self=47483648) at src/int/mod.rs:323
#4  0x4000979c in compiler_builtins::int::shift::Ashl::ashl<u64> (self=47483648, shl=32) at src/int/shift.rs:9
#5  0x40009954 in compiler_builtins::int::shift::__ashldi3 (a=47483648, b=32) at src/int/shift.rs:82
#6  0x40007b00 in compiler_builtins::int::shift::__ashldi3::__ashldi3 (a=47483648, b=32) at src/macros.rs:572
#7  0x40007274 in core::ops::bit::{impl#335}::shl (self=47483648, other=32) at /home/jonathan/Documents/rust-lang/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/core/src/ops/

thejpster

/* Use this linker script:

```text
SECTIONS {
    . = 0x10000000;

    Flash : {
        KEEP(*(.entry))
        KEEP(*(.entry.*))

thejpster

// This file is Public Domain, or CC0 where that is not allowed

static int GLOBAL_VALUE = 5;

__attribute__((noinline))
int reloc_get(void) {
        return GLOBAL_VALUE;
}

int reloc_add(int a) {

thejpster

fn main() -> Result<(), anyhow::Error> {
    println!("Hello, world!");
    let f = std::fs::File::open("mytweets.json")?;
    let bf = std::io::BufReader::new(f);
    println!("Parsing...");
    let all_tweets: Vec<serde_json::Value> = serde_json::from_reader(bf)?;
    println!("Got {} items", all_tweets.len());
    let mut tweet_info = Vec::new();
    for item in all_tweets {

thejpster

C:/Users/msn/Downloads/thumbv6m-none-eabi-flash1002-libneotron_os.elf:	file format elf32-littlearm

Disassembly of section .text:

10020004 <<&T as core::fmt::Debug>::fmt>:
10020004: b5b0         	push	{r4, r5, r7, lr}
10020006: af02         	add	r7, sp, #8
10020008: b0a2         	sub	sp, #136
1002000a: 6800         	ldr	r0, [r0]