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setjmp/longjmp assembly gen

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Folkert 2023-07-23 15:05:24 +02:00
parent cdc90f8495
commit f96c78b3a5
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5 changed files with 284 additions and 1 deletions
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26
crates/compiler/gen_dev/src/generic64/mod.rs
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@ -134,6 +134,9 @@ pub trait CallConv<GeneralReg: RegTrait, FloatReg: RegTrait, ASM: Assembler<Gene
sym: &Symbol,
layout: &InLayout<'a>,
);
fn setjmp(buf: &mut Vec<'_, u8>, relocs: &mut Vec<'_, Relocation>);
fn longjmp(buf: &mut Vec<'_, u8>, relocs: &mut Vec<'_, Relocation>);
}
pub enum CompareOperation {
@ -238,6 +241,13 @@ pub trait Assembler<GeneralReg: RegTrait, FloatReg: RegTrait>: Sized + Copy {
dst: GeneralReg,
);
fn data_pointer(
buf: &mut Vec<'_, u8>,
relocs: &mut Vec<'_, Relocation>,
fn_name: String,
dst: GeneralReg,
);
/// Jumps by an offset of offset bytes unconditionally.
/// It should always generate the same number of bytes to enable replacement if offset changes.
/// It returns the base offset to calculate the jump from (generally the instruction after the jump).
@ -887,6 +897,22 @@ impl<
(out.into_bump_slice(), offset)
}
fn build_roc_setjmp(&mut self) -> &'a [u8] {
let mut out = bumpalo::vec![in self.env.arena];
CC::setjmp(&mut out, &mut self.relocs);
out.into_bump_slice()
}
fn build_roc_longjmp(&mut self) -> &'a [u8] {
let mut out = bumpalo::vec![in self.env.arena];
CC::longjmp(&mut out, &mut self.relocs);
out.into_bump_slice()
}
fn build_fn_pointer(&mut self, dst: &Symbol, fn_name: String) {
let reg = self.storage_manager.claim_general_reg(&mut self.buf, dst);