void makeboot(section *s, char *outfile)
{
FILE *fp;
void *rawdata[64];
int rawsize[64];
char fill[4096];
boot_dir bdir;
int i,c;
int nextpage = 1; /* page rel offset of next loaded object */
memset(fill,0,4096);
memset(&bdir, 0, 4096);
for(i=0;i<64;i++){
rawdata[i] = NULL;
rawsize[i] = 0;
}
c = 1;
bdir.bd_entry[0].be_type = fix(BE_TYPE_DIRECTORY);
bdir.bd_entry[0].be_size = fix(1);
bdir.bd_entry[0].be_vsize = fix(1);
rawdata[0] = (void *) &bdir;
rawsize[0] = 4096;
strcpy(bdir.bd_entry[0].be_name,"SBBB/Directory");
while(s){
char *type = getvaldef(s,"type","NONE");
char *file = getval(s,"file");
int vsize = atoi(getvaldef(s,"vsize","0"));
int size;
if(!type) die("section %s has no type",s->name);
strncpy(centry.be_name,s->name,32);
centry.be_name[31] = 0;
if(!file) die("section %s has no file",s->name);
if(!(rawdata[c] = loadfile(file,&rawsize[c])))
die("cannot load \"%s\"",file);
centry.be_size = rawsize[c] / 4096 + (rawsize[c] % 4096 ? 1 : 0);
centry.be_vsize =
(vsize < centry.be_size) ? centry.be_size : vsize;
centry.be_offset = nextpage;
nextpage += centry.be_size;
centry.be_size = fix(centry.be_size);
centry.be_vsize = fix(centry.be_vsize);
centry.be_offset = fix(centry.be_offset);
if(!strcmp(type,"boot")){
centry.be_type = fix(BE_TYPE_BOOTSTRAP);
centry.be_code_vaddr = fix(atoi(getvaldef(s,"vaddr","0")));
centry.be_code_ventr = fix(atoi(getvaldef(s,"ventry","0")));
}
if(!strcmp(type,"code")){
centry.be_type = fix(BE_TYPE_CODE);
centry.be_code_vaddr = fix(atoi(getvaldef(s,"vaddr","0")));
centry.be_code_ventr = fix(atoi(getvaldef(s,"ventry","0")));
}
if(!strcmp(type,"data")){
centry.be_type = fix(BE_TYPE_DATA);
}
if(!strcmp(type,"elf32")){
centry.be_type = fix(BE_TYPE_ELF32);
}
if(centry.be_type == BE_TYPE_NONE){
die("unrecognized section type \"%s\"",type);
}
c++;
s = s->next;
if(c==64) die("too many sections (>63)",NULL);
}
if(!(fp = fopen(outfile,"w"))){
die("cannot write to \"%s\"",outfile);
}
if(make_floppy) {
fprintf(stderr,"whoohah!");
writebootblock(fp, nextpage+1);
}
for(i=0;i<c;i++){
fwrite(rawdata[i],rawsize[i],1,fp);
if(rawsize[i]%4096) fwrite(fill,4096 - (rawsize[i]%4096),1,fp);
}
fclose(fp);
}
void makeboot(section *s, char *outfile)
{
int fd;
void *rawdata[BOOTDIR_MAX_ENTRIES];
int rawsize[BOOTDIR_MAX_ENTRIES];
char fill[4096];
boot_dir bdir;
int i,c;
int nextpage = 0; /* page rel offset of next loaded object */
long outlen = 0;
memset(fill,0,4096);
memset(&bdir, 0, sizeof(bdir));
for(i=0;i<BOOTDIR_MAX_ENTRIES;i++){
rawdata[i] = NULL;
rawsize[i] = 0;
}
c = 1;
bdir.bd_entry[0].be_type = fix(BE_TYPE_DIRECTORY);
bdir.bd_entry[0].be_size = fix(sizeof(bdir)/4096);
bdir.bd_entry[0].be_vsize = fix(sizeof(bdir));
rawdata[0] = (void *) &bdir;
rawsize[0] = sizeof(bdir);
nextpage += sizeof(bdir)/4096;
strcpy(bdir.bd_entry[0].be_name,"SBBB/Directory");
printf("directory size %d\n", rawsize[0]);
while(s){
char *type = getvaldef(s,"type","NONE");
char *file = getval(s,"file");
if(!type) die("section %s has no type",s->name);
strncpy(centry.be_name,s->name,BOOTDIR_NAMELEN);
centry.be_name[BOOTDIR_NAMELEN-1] = 0;
if(!file) die("section %s has no file",s->name);
if(!strcmp(type, "elf32") || !strcmp(type, "elf64"))
rawdata[c] = loadstripfile(file,&rawsize[c]);
else if(!strcmp(type, "text"))
rawdata[c] = loadtextfile(file,&rawsize[c]);
else
rawdata[c] = loadfile(file,&rawsize[c]);
if(!rawdata[c])
die("cannot load \"%s\"",file);
centry.be_size = rawsize[c] / 4096 + (rawsize[c] % 4096 ? 1 : 0);
centry.be_vsize = rawsize[c];
centry.be_offset = nextpage;
nextpage += centry.be_size;
centry.be_size = fix(centry.be_size);
centry.be_vsize = fix(centry.be_vsize);
centry.be_offset = fix(centry.be_offset);
if(!strcmp(type,"boot")){
centry.be_type = fix(BE_TYPE_BOOTSTRAP);
centry.be_code_vaddr = fix(atoi(getvaldef(s,"vaddr","0")));
centry.be_code_ventr = fix(atoi(getvaldef(s,"ventry","0")));
}
if(!strcmp(type,"code")){
centry.be_type = fix(BE_TYPE_CODE);
centry.be_code_vaddr = fix(atoi(getvaldef(s,"vaddr","0")));
centry.be_code_ventr = fix(atoi(getvaldef(s,"ventry","0")));
}
if(!strcmp(type,"data") || !strcmp(type,"text")){
centry.be_type = fix(BE_TYPE_DATA);
}
if(!strcmp(type,"elf32")){
centry.be_type = fix(BE_TYPE_ELF32);
centry.be_code_vaddr = 0;
centry.be_code_ventr = fix(elf32_find_entry(rawdata[c], rawsize[c]));
}
if(!strcmp(type,"elf64")){
centry.be_type = fix(BE_TYPE_ELF64);
centry.be_code_vaddr = 0;
centry.be_code_ventr = fix(elf64_find_entry(rawdata[c], rawsize[c]));
}
if(centry.be_type == BE_TYPE_NONE){
die("unrecognized section type \"%s\"",type);
}
printf(" %8s %8d %s\n", type, fix(centry.be_vsize), centry.be_name);
c++;
s = s->next;
if(c==BOOTDIR_MAX_ENTRIES) die("too many sections (>128)",NULL);
}
if((fd = open(outfile, O_BINARY|O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0) {
die("cannot write to \"%s\"",outfile);
}
if(make_sparcboot) {
writesparcbootblock(fd, nextpage+1);
}
for(i=0;i<c;i++){
write(fd, rawdata[i], rawsize[i]);
outlen += rawsize[i];
if(rawsize[i]%4096) {
write(fd, fill, 4096 - (rawsize[i]%4096));
outlen += 4096 - (rawsize[i]%4096);
}
}
close(fd);
printf("wrote %ld bytes to output file %s\n", outlen, outfile);
}