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No commits in common. "7d658ad704cdab7b23ea6c067ef2442a819f8572" and "ae7b904abc161d6fa0b4441ea6aabb6a5634a657" have entirely different histories.

2 changed files with 6 additions and 13 deletions

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@ -16,15 +16,10 @@ unsafe extern "C" fn _enter() -> ! {
asm!( asm!(
// before we use the `la` pseudo-instruction for the first time, // before we use the `la` pseudo-instruction for the first time,
// we need to set `gp` (google linker relaxation) // we need to set `gp` (google linker relaxation)
".option push", // pushes the current option stack ".option push",
".option norelax", // disable relaxation so we can properly set `gp` ".option norelax",
// this instruction compiles to:
// 1:
// auipc gp, %pcrel_hi(_global_pointer)
// addi gp, gp, %pcrel_lo(1b)
// if relaxation were on, this would simply be `mv gp, gp` or `addi gp, gp, 0`
"la gp, _global_pointer", "la gp, _global_pointer",
".option pop", // pops the current option stack ".option pop",
// set the stack pointer // set the stack pointer
"la sp, _init_stack_top", "la sp, _init_stack_top",
@ -72,9 +67,7 @@ extern "C" fn start() -> ! {
} }
#[panic_handler] #[panic_handler]
fn on_panic(info: &PanicInfo) -> ! { fn on_panic(_info: &PanicInfo) -> ! {
println!("{}", info);
loop {} loop {}
} }

View file

@ -14,7 +14,7 @@ PHDRS {
} }
SECTIONS { SECTIONS {
. = ORIGIN(ram); # start at 0x8000_0000 (DRAM) . = ORIGIN(ram); # start at 0x8000_0000
.text : { # put code first .text : { # put code first
*(.text.init) # start with anything in the .text.init section *(.text.init) # start with anything in the .text.init section