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#include "dec_prom.h"
#include "delo.h"
extern void *_edata;
extern void *_end;
void *malloc(int size);
const struct callback *callv;
int rex_prom = 0;
int main(int argc, char **argv, int magic, struct callback *cv ) {
int i,j,cargc;
int retval;
void (*entry)(int argc, char **argv, int magic, void *cv);
char *configbuffer,
**parray,
**cargv,
*kernel,
partition[3],
config[_MAX_CONFIG_NAME_LEN];
/* Clear BSS - This is a non-prom memset */
memset(_edata, 0x0, _end - _edata);
#if 0
callv=(void *) 0xa0004c70;
printf("cv %x\n",cv);
#endif
/* FIXME We only check for REX but dont handle it right now */
if (magic == DEC_REX_MAGIC) {
/* Store Call Vector */
callv=cv;
rex_prom=1;
}
puts("delo V0.7 Copyright 2000 Florian Lohoff <flo@rfc822.org>");
#if DEBUG
printf("callv addr %x\n",callv);
#endif
#ifdef DEBUG
for(i=0;i<argc;i++)
printf("clo: %d %s\n",
i,
argv[i]);
#endif
/*
* Boot command line will look like this:
*
* boot 3/rz0 5/vmlinux
*
* It might contain replacement argv stuff e.g
*
* boot 3/rz0 5/vmlinux root=/dev/sda5 console=ttyS2
*
* Now we dont use the config file args but the prom command line
*
*/
/* Initialize to empty partition name */
partition[0]=0x0;
/* Initialize to empty config name */
config[0]=0x0;
/* get partition name */
if (argc >= 3) {
for(i=0;i<strlen(argv[2]) && i < sizeof(partition);i++) {
if (argv[2][i] <= '9' && argv[2][i] >= '0')
partition[i]=argv[2][i];
else
break;
}
/* Set terminating 0x0 */
partition[i]=0x0;
/* Is there a slash ? */
if (argv[2][i] == '/') {
/* Copy config name */
strncpy(config, &argv[2][i+1], _MAX_CONFIG_NAME_LEN);
}
}
if (open_partition(partition)) {
return;
}
if (!(configbuffer=readfile(_CONFIG_FILE))) {
printf("Couldnt fetch config.file %s\n",_CONFIG_FILE);
return;
}
if (!(parray=getconfig(configbuffer, config))) {
printf("Couldnt find config %s\n", config);
return;
}
/* Do we have parms on the prom command line ? */
if (argc <= 3) {
/* FIXME This is completely stupid to work around
* a kernel stupidity - Probably the kernel should not
* skip anything and/or check for existance of "boot"
* at the beginning and skip only if this is the case */
if (rex_prom)
/*
* Copy pointer - We take 0 as the kernel
* will skip 2 parms anyway for REX so it doesnt
* care about our store usage
*/
cargv=&parray[0];
else
/*
* For non REX proms the kernel skips 1 arg
*/
cargv=&parray[1];
/* Count cargv values */
for(cargc=0;cargv[cargc];cargc++);
} else
cargc=0;
#ifdef DEBUG
for(i=0;i<cargc;i++)
printf("configargv: %d %s\n",
i,
cargv[i]);
#endif
if (!(kernel=readfile(parray[1]))) {
printf("Couldnt load kernel %s\n", parray[1]);
return;
}
if (!(entry=copyelf(kernel))) {
printf("Copying kernel failed\n");
return;
};
if (cargc != 0)
entry(cargc, cargv, magic, cv);
else
entry(argc, argv, magic, cv);
return;
}
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