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missing symbol filling

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shadow cat
2024-10-12 18:24:15 -04:00
parent cf9f3469ae
commit 77735953a5
6 changed files with 171 additions and 124 deletions
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89
src/compiler/riscv64/mod.rs
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@@ -5,9 +5,7 @@ mod opcode;
mod reg;
mod single;
use std::collections::HashMap;
use super::{elf, program::{create_program, Function}};
use super::{create_program, elf, SymMap};
use crate::util::BitsI32;
use base::*;
use funct::{op::*, width};
@@ -18,64 +16,33 @@ use single::*;
pub fn gen() -> Vec<u8> {
use asm::AsmInstruction as I;
// let mut program = Vec::new();
// let msg = b"Hello world!\n";
// program.extend(msg);
// program.resize(((program.len() - 1) / 4 + 1) * 4, 0);
// let start = program.len() as u64;
// let instructions = [
// auipc(t0, BitsI32::new(0)),
// addi(t0, t0, BitsI32::new(-(start as i32))),
// addi(a0, zero, BitsI32::new(1)),
// mv(a1, t0),
// addi(a2, zero, BitsI32::new(msg.len() as i32)),
// addi(a7, zero, BitsI32::new(64)),
// addi(t0, zero, const { BitsI32::new(-10) }),
// ecall(),
// // exit
// addi(a0, zero, BitsI32::new(0)),
// addi(a7, zero, BitsI32::new(93)),
// ecall(),
// j(BitsI32::new(0)),
// ];
// for i in instructions {
// program.extend(i.to_le_bytes());
// }
let msg = b"Hello world!\n";
let msg2 = b"IT WORKS!!!!\n";
let ro_data = HashMap::from([
("msg".to_string(), msg.to_vec()),
("msg2".to_string(), msg2.to_vec()),
let mut table = SymMap::new();
let (msg, len) = table.push_ro_data(b"Hello world!\n");
let (msg2, len2) = table.push_ro_data(b"IT WORKS!!!!\n");
let print_stuff = table.reserve();
let start = table.push_fn(vec![
I::Call(*print_stuff),
I::Li(a0, 0),
I::Li(a7, 93),
I::Ecall,
I::Jal(zero, 0),
]);
let functions = vec![
Function {
label: "print_stuff".to_string(),
instructions: vec![
I::Addi(a0, zero, 1),
I::La(a1, "msg".to_string()),
I::Addi(a2, zero, msg.len() as i32),
I::Addi(a7, zero, 64),
I::Ecall,
I::Addi(a0, zero, 1),
I::La(a1, "msg2".to_string()),
I::Addi(a2, zero, msg2.len() as i32),
I::Addi(a7, zero, 64),
I::Ecall,
I::Ret,
]
},
Function {
label: "_start".to_string(),
instructions: vec![
I::Jala("print_stuff".to_string()),
I::Ecall,
I::Addi(a0, zero, 0),
I::Addi(a7, zero, 93),
I::Ecall,
I::Jal(zero, 0),
]
},
];
let (program, start) = create_program(ro_data, functions);
table.write_fn(
print_stuff,
vec![
I::Li(a0, 1),
I::La(a1, msg),
I::Li(a2, len as i32),
I::Li(a7, 64),
I::Ecall,
I::Li(a0, 1),
I::La(a1, msg2),
I::Li(a2, len2 as i32),
I::Li(a7, 64),
I::Ecall,
I::Ret,
],
);
let (program, start) = create_program(table, start);
elf::create(program, start.expect("no start!"))
}