/* bootAoutLib.c - UNIX a.out object module boot loader *//* Copyright 1984-1992 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01b,09feb93,jmm  added call to cacheTextUpdate() in bootAoutModule (SPR #1932)01a,27jul92,elh  created from loadAoutLib.c*//*DESCRIPTIONThis library provides an object module boot loading facility for the a.out object module format. SEE ALSO: bootLoadLib.pG "Basic OS"*//* includes */#include "vxWorks.h"#include "a_out.h"#include "fioLib.h"#include "stdio.h"#include "bootLoadLib.h"#include "cacheLib.h"/********************************************************************************* bootAoutModule - load an a.out object module into memory** This routine loads an object module in a.out format from the specified* file, and places the code, data, and BSS at the locations specified within* the file.  The entry point of the module is returned in <pEntry>.  This * routine is generally used for bootstrap loading.** RETURNS:* OK, or* ERROR if the routine cannot read the file** SEE ALSO: loadModuleAt()*/LOCAL STATUS bootAoutModule     (    int fd,    FUNCPTR *pEntry 			/* entry point of module */    )    {    struct exec hdr;			/* a.out header */    int nBytes;    nBytes = fioRead (fd, (char *) &hdr, sizeof (struct exec));    if (nBytes < sizeof (struct exec))        return (ERROR);    printf ("%d", hdr.a_text);    nBytes = fioRead (fd, (char *) hdr.a_entry, (int) hdr.a_text);    if (nBytes < hdr.a_text)        return (ERROR);    cacheTextUpdate ((void *) hdr.a_entry, hdr.a_text);    printf (" + %d", hdr.a_data);    nBytes = fioRead (fd, (char *) (hdr.a_entry + hdr.a_text),                      (int) hdr.a_data);    if (nBytes < hdr.a_data)        return (ERROR);    printf (" + %d\n", hdr.a_bss);    *pEntry = (FUNCPTR) hdr.a_entry;    return (OK);    }/********************************************************************************* bootAoutInit - initialize the system for aout load modules** This routine initialized VxWorks to use an a.out format for* boot loading modules.** RETURNS:* OK, or* ERROR if XXX** SEE ALSO: loadModuleAt()*/STATUS bootAoutInit    (    )    {    /* XXX check for installed ? */    bootLoadRoutine = bootAoutModule;    return (OK);    }