58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
package main
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import (
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// "io/ioutil"
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"os"
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"strings"
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"testing"
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)
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func TestCompile(t *testing.T) {
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// @ref https://gist.github.com/armicron/e891709ce8893df2fd5fc74c846dcf20
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const src = `
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section .rodata
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$msg = sz "Hello, world\n"
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$filename = sz "test.txt"
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section .data
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$fd = u64 0
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section .text
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global _start: ;tell linker entry point
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mov rdi, &$filename
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mov rsi, 66 ;O_CREAT = 0102o (man open)
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mov rdx, 438 ;umode_t = 0666 octal
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mov rax, 2
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syscall
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mov $fd, rax
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mov rdx, strlen($msg) ;message strlen
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mov rsi, &$msg ;message to write
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mov rdi, $fd ;file descriptor
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mov rax, 1 ;system call number (sys_write)
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syscall ;call kernel
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mov rdi, $fd
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mov rax, 3 ;sys_close
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syscall
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mov rax, 60 ;system call number (sys_exit)
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syscall ;call kernel
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`
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/*
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assemble(strings.NewReader(src), ioutil.Discard)
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*/
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fh, err := os.OpenFile("output.o", os.O_CREATE|os.O_WRONLY, 0644)
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if err != nil {
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panic(err)
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}
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assemble(strings.NewReader(src), fh) // ioutil.Discard)
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}
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