Linux/Unix编程

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Unix_Linux

init.c：源码内容

							/*
 * init.c: PROM library initialisation code.
 *
 * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov 
 */
#include <linux/mm.h>
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
#include <asm/hp-lj/asic.h>
#include <linux/bootmem.h>
#include "utils.h"
#define Delimiter "CMDLINE="
const char CommandLine[] = Delimiter
  "root=/dev/hda3                                                                                                                                                                                                                                            ";
char arcs_cmdline[CL_SIZE];
int __init prom_init(int argc, char ** argv, char **envp)
{
	ulong mem_size = get_mem_avail();
        int reserve_size = 0;
	printk("Total Memory: %ld bytesn", mem_size);
	reserve_buffer(CommandLine, mem_size);
	reserve_size = get_reserved_buffer_size();
	mem_size -= reserve_size;
	add_memory_region(0x0,mem_size, BOOT_MEM_RAM);
        add_memory_region(mem_size,reserve_size, BOOT_MEM_RESERVED);
	printk("Main Memory: %ld bytesn", mem_size);
	printk("Reserved Memory: %ld bytes at 0x%08xn", 
		get_reserved_buffer_size(), (ulong)get_reserved_buffer());
	printk("Detected %s ASICn", GetAsicName());
	mips_machgroup  = MACH_GROUP_HP_LJ;
	mips_machtype   = MACH_UNKNOWN;
	strcpy(arcs_cmdline, CommandLine+strlen(Delimiter));
	return 0;
}
void prom_free_prom_memory (void)
{
}

						