view gen.c @ 758:b52cd6854c28

Use mmap with a hint rather than sbrk for allocating executable memory within 32-bit displacement range of compiled code
author Michael Pavone <pavone@retrodev.com>
date Sun, 28 Jun 2015 10:12:37 -0700
parents c8fefa140c80
children 724bbec47f86
line wrap: on
line source

#include <stdio.h>
#include <stdlib.h>
#include "gen.h"
#include "mem.h"

void init_code_info(code_info *code)
{
	size_t size = CODE_ALLOC_SIZE;
	code->cur = alloc_code(&size);
	if (!code->cur) {
		fputs("Failed to allocate memory for generated code\n", stderr);
		exit(1);
	}
	code->last = code->cur + size/sizeof(code_word) - RESERVE_WORDS;
}