static void
emul_bugapi_init(os_emul_data *bugapi,
int nr_cpus)
{
int i;
/* get the current input/output devices that were created during
device tree initialization */
bugapi->input = tree_find_ihandle_property(bugapi->root, "/chosen/stdin");
bugapi->output = tree_find_ihandle_property(bugapi->root, "/chosen/stdout");
/* if present, extract the selected disk devices */
for (i = 0; i < nr_bugapi_disks; i++) {
char disk[32];
char *chp;
strcpy(disk, "/chosen/disk0");
ASSERT(sizeof(disk) > strlen(disk));
chp = strchr(disk, '0');
*chp = *chp + i;
if (tree_find_property(bugapi->root, disk) != NULL)
bugapi->disk[i] = tree_find_ihandle_property(bugapi->root, disk);
}
}
static void
update_for_binary_section(bfd *abfd,
asection *the_section,
PTR obj)
{
unsigned_word section_vma;
unsigned_word section_size;
access_type access;
device *me = (device*)obj;
/* skip the section if no memory to allocate */
if (! (bfd_get_section_flags(abfd, the_section) & SEC_ALLOC))
return;
/* check/ignore any sections of size zero */
section_size = bfd_get_section_size_before_reloc(the_section);
if (section_size == 0)
return;
/* find where it is to go */
section_vma = bfd_get_section_vma(abfd, the_section);
DTRACE(binary,
("name=%-7s, vma=0x%.8lx, size=%6ld, flags=%3lx(%s%s%s%s%s )\n",
bfd_get_section_name(abfd, the_section),
(long)section_vma,
(long)section_size,
(long)bfd_get_section_flags(abfd, the_section),
bfd_get_section_flags(abfd, the_section) & SEC_LOAD ? " LOAD" : "",
bfd_get_section_flags(abfd, the_section) & SEC_CODE ? " CODE" : "",
bfd_get_section_flags(abfd, the_section) & SEC_DATA ? " DATA" : "",
bfd_get_section_flags(abfd, the_section) & SEC_ALLOC ? " ALLOC" : "",
bfd_get_section_flags(abfd, the_section) & SEC_READONLY ? " READONLY" : ""
));
/* If there is an .interp section, it means it needs a shared library interpreter. */
if (strcmp(".interp", bfd_get_section_name(abfd, the_section)) == 0)
error("Shared libraries are not yet supported.\n");
/* determine the devices access */
access = access_read;
if (bfd_get_section_flags(abfd, the_section) & SEC_CODE)
access |= access_exec;
if (!(bfd_get_section_flags(abfd, the_section) & SEC_READONLY))
access |= access_write;
/* if claim specified, allocate region from the memory device */
if (device_find_property(me, "claim") != NULL) {
device_instance *memory = tree_find_ihandle_property(me, "/chosen/memory");
unsigned_cell mem_in[3];
unsigned_cell mem_out[1];
mem_in[0] = 0; /*alignment - top-of-stack*/
mem_in[1] = section_size;
mem_in[2] = section_vma;
if (device_instance_call_method(memory, "claim", 3, mem_in, 1, mem_out) < 0)
device_error(me, "failed to claim memory for section at 0x%lx (0x%lx",
section_vma,
section_size);
if (mem_out[0] != section_vma)
device_error(me, "section address not as requested");
}
/* if a map, pass up a request to create the memory in core */
if (strncmp(device_name(me), "map-binary", strlen("map-binary")) == 0)
device_attach_address(device_parent(me),
attach_raw_memory,
0 /*address space*/,
section_vma,
section_size,
access,
me);
/* if a load dma in the required data */
if (bfd_get_section_flags(abfd, the_section) & SEC_LOAD) {
void *section_init = zalloc(section_size);
if (!bfd_get_section_contents(abfd,
the_section,
section_init, 0,
section_size)) {
bfd_perror("binary");
device_error(me, "load of data failed");
return;
}
if (device_dma_write_buffer(device_parent(me),
section_init,
0 /*space*/,
section_vma,
section_size,
1 /*violate_read_only*/)
!= section_size)
device_error(me, "broken transfer\n");
zfree(section_init); /* only free if load */
}
}
