summaryrefslogtreecommitdiff
path: root/bfd/ppcboot.c
diff options
context:
space:
mode:
Diffstat (limited to 'bfd/ppcboot.c')
-rw-r--r--bfd/ppcboot.c535
1 files changed, 0 insertions, 535 deletions
diff --git a/bfd/ppcboot.c b/bfd/ppcboot.c
deleted file mode 100644
index cbda407ea33..00000000000
--- a/bfd/ppcboot.c
+++ /dev/null
@@ -1,535 +0,0 @@
-/* BFD back-end for PPCbug boot records.
- Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
- Written by Michael Meissner, Cygnus Support, <meissner@cygnus.com>
-
-This file is part of BFD, the Binary File Descriptor library.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* This is a BFD backend which may be used to write PowerPCBug boot objects.
- It may only be used for output, not input. The intention is that this may
- be used as an output format for objcopy in order to generate raw binary
- data.
-
- This is very simple. The only complication is that the real data
- will start at some address X, and in some cases we will not want to
- include X zeroes just to get to that point. Since the start
- address is not meaningful for this object file format, we use it
- instead to indicate the number of zeroes to skip at the start of
- the file. objcopy cooperates by specially setting the start
- address to zero by default. */
-
-#include <ctype.h>
-
-#include "bfd.h"
-#include "sysdep.h"
-#include "libbfd.h"
-
-/* PPCbug location structure */
-typedef struct ppcboot_location {
- bfd_byte ind;
- bfd_byte head;
- bfd_byte sector;
- bfd_byte cylinder;
-} ppcboot_location_t;
-
-/* PPCbug partition table layout */
-typedef struct ppcboot_partition {
- ppcboot_location_t partition_begin; /* partition begin */
- ppcboot_location_t partition_end; /* partition end */
- bfd_byte sector_begin[4]; /* 32-bit start RBA (zero-based), little endian */
- bfd_byte sector_length[4]; /* 32-bit RBA count (one-based), little endian */
-} ppcboot_partition_t;
-
-/* PPCbug boot layout. */
-typedef struct ppcboot_hdr {
- bfd_byte pc_compatibility[446]; /* x86 instruction field */
- ppcboot_partition_t partition[4]; /* partition information */
- bfd_byte signature[2]; /* 0x55 and 0xaa */
- bfd_byte entry_offset[4]; /* entry point offset, little endian */
- bfd_byte length[4]; /* load image length, little endian */
- bfd_byte flags; /* flag field */
- bfd_byte os_id; /* OS_ID */
- char partition_name[32]; /* partition name */
- bfd_byte reserved1[470]; /* reserved */
-} ppcboot_hdr_t;
-
-/* Signature bytes for last 2 bytes of the 512 byte record */
-#define SIGNATURE0 0x55
-#define SIGNATURE1 0xaa
-
-/* PowerPC boot type */
-#define PPC_IND 0x41
-
-/* Information needed for ppcboot header */
-typedef struct ppcboot_data {
- ppcboot_hdr_t header; /* raw header */
- asection *sec; /* single section */
-} ppcboot_data_t;
-
-/* Any bfd we create by reading a ppcboot file has three symbols:
- a start symbol, an end symbol, and an absolute length symbol. */
-#define PPCBOOT_SYMS 3
-
-static boolean ppcboot_mkobject PARAMS ((bfd *));
-static const bfd_target *ppcboot_object_p PARAMS ((bfd *));
-static boolean ppcboot_set_arch_mach
- PARAMS ((bfd *, enum bfd_architecture, unsigned long));
-static boolean ppcboot_get_section_contents
- PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
-static long ppcboot_get_symtab_upper_bound PARAMS ((bfd *));
-static char *mangle_name PARAMS ((bfd *, char *));
-static long ppcboot_get_symtab PARAMS ((bfd *, asymbol **));
-static asymbol *ppcboot_make_empty_symbol PARAMS ((bfd *));
-static void ppcboot_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
-static boolean ppcboot_set_section_contents
- PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
-static int ppcboot_sizeof_headers PARAMS ((bfd *, boolean));
-static boolean ppcboot_bfd_print_private_bfd_data PARAMS ((bfd *, PTR));
-
-#define ppcboot_set_tdata(abfd, ptr) ((abfd)->tdata.any = (PTR) (ptr))
-#define ppcboot_get_tdata(abfd) ((ppcboot_data_t *) ((abfd)->tdata.any))
-
-/* Create a ppcboot object. Invoked via bfd_set_format. */
-
-static boolean
-ppcboot_mkobject (abfd)
- bfd *abfd;
-{
- if (!ppcboot_get_tdata (abfd))
- ppcboot_set_tdata (abfd, bfd_zalloc (abfd, sizeof (ppcboot_data_t)));
-
- return true;
-}
-
-
-/* Set the architecture to PowerPC */
-static boolean
-ppcboot_set_arch_mach (abfd, arch, machine)
- bfd *abfd;
- enum bfd_architecture arch;
- unsigned long machine;
-{
- if (arch == bfd_arch_unknown)
- arch = bfd_arch_powerpc;
-
- else if (arch != bfd_arch_powerpc)
- return false;
-
- return bfd_default_set_arch_mach (abfd, arch, machine);
-}
-
-
-/* Any file may be considered to be a ppcboot file, provided the target
- was not defaulted. That is, it must be explicitly specified as
- being ppcboot. */
-
-static const bfd_target *
-ppcboot_object_p (abfd)
- bfd *abfd;
-{
- struct stat statbuf;
- asection *sec;
- ppcboot_hdr_t hdr;
- size_t i;
- ppcboot_data_t *tdata;
-
- BFD_ASSERT (sizeof (ppcboot_hdr_t) == 1024);
-
- if (abfd->target_defaulted)
- {
- bfd_set_error (bfd_error_wrong_format);
- return NULL;
- }
-
- /* Find the file size. */
- if (bfd_stat (abfd, &statbuf) < 0)
- {
- bfd_set_error (bfd_error_system_call);
- return NULL;
- }
-
- if ((size_t) statbuf.st_size < sizeof (ppcboot_hdr_t))
- {
- bfd_set_error (bfd_error_wrong_format);
- return NULL;
- }
-
- if (bfd_read ((PTR) &hdr, sizeof (hdr), 1, abfd) != sizeof (hdr))
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
-
- return NULL;
- }
-
- /* Now do some basic checks. */
- for (i = 0; i < sizeof (hdr.pc_compatibility); i++)
- if (hdr.pc_compatibility[i])
- {
- bfd_set_error (bfd_error_wrong_format);
- return NULL;
- }
-
- if (hdr.signature[0] != SIGNATURE0 || hdr.signature[1] != SIGNATURE1)
- {
- bfd_set_error (bfd_error_wrong_format);
- return NULL;
- }
-
- if (hdr.partition[0].partition_end.ind != PPC_IND)
- {
- bfd_set_error (bfd_error_wrong_format);
- return NULL;
- }
-
- abfd->symcount = PPCBOOT_SYMS;
-
- /* One data section. */
- sec = bfd_make_section (abfd, ".data");
- if (sec == NULL)
- return NULL;
- sec->flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_CODE | SEC_HAS_CONTENTS;
- sec->vma = 0;
- sec->_raw_size = statbuf.st_size - sizeof (ppcboot_hdr_t);
- sec->filepos = sizeof (ppcboot_hdr_t);
-
- ppcboot_mkobject (abfd);
- tdata = ppcboot_get_tdata (abfd);
- tdata->sec = sec;
- memcpy ((PTR) &tdata->header, (PTR) &hdr, sizeof (ppcboot_hdr_t));
-
- ppcboot_set_arch_mach (abfd, bfd_arch_powerpc, 0);
- return abfd->xvec;
-}
-
-#define ppcboot_close_and_cleanup _bfd_generic_close_and_cleanup
-#define ppcboot_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
-#define ppcboot_new_section_hook _bfd_generic_new_section_hook
-
-
-/* Get contents of the only section. */
-
-static boolean
-ppcboot_get_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- asection *section;
- PTR location;
- file_ptr offset;
- bfd_size_type count;
-{
- if (bfd_seek (abfd, offset + sizeof(ppcboot_hdr_t), SEEK_SET) != 0
- || bfd_read (location, 1, count, abfd) != count)
- return false;
- return true;
-}
-
-
-/* Return the amount of memory needed to read the symbol table. */
-
-static long
-ppcboot_get_symtab_upper_bound (abfd)
- bfd *abfd;
-{
- return (PPCBOOT_SYMS + 1) * sizeof (asymbol *);
-}
-
-
-/* Create a symbol name based on the bfd's filename. */
-
-static char *
-mangle_name (abfd, suffix)
- bfd *abfd;
- char *suffix;
-{
- int size;
- char *buf;
- char *p;
-
- size = (strlen (bfd_get_filename (abfd))
- + strlen (suffix)
- + sizeof "_ppcboot__");
-
- buf = (char *) bfd_alloc (abfd, size);
- if (buf == NULL)
- return "";
-
- sprintf (buf, "_ppcboot_%s_%s", bfd_get_filename (abfd), suffix);
-
- /* Change any non-alphanumeric characters to underscores. */
- for (p = buf; *p; p++)
- if (! isalnum ((unsigned char) *p))
- *p = '_';
-
- return buf;
-}
-
-
-/* Return the symbol table. */
-
-static long
-ppcboot_get_symtab (abfd, alocation)
- bfd *abfd;
- asymbol **alocation;
-{
- asection *sec = ppcboot_get_tdata (abfd)->sec;
- asymbol *syms;
- unsigned int i;
-
- syms = (asymbol *) bfd_alloc (abfd, PPCBOOT_SYMS * sizeof (asymbol));
- if (syms == NULL)
- return false;
-
- /* Start symbol. */
- syms[0].the_bfd = abfd;
- syms[0].name = mangle_name (abfd, "start");
- syms[0].value = 0;
- syms[0].flags = BSF_GLOBAL;
- syms[0].section = sec;
- syms[0].udata.p = NULL;
-
- /* End symbol. */
- syms[1].the_bfd = abfd;
- syms[1].name = mangle_name (abfd, "end");
- syms[1].value = sec->_raw_size;
- syms[1].flags = BSF_GLOBAL;
- syms[1].section = sec;
- syms[1].udata.p = NULL;
-
- /* Size symbol. */
- syms[2].the_bfd = abfd;
- syms[2].name = mangle_name (abfd, "size");
- syms[2].value = sec->_raw_size;
- syms[2].flags = BSF_GLOBAL;
- syms[2].section = bfd_abs_section_ptr;
- syms[2].udata.p = NULL;
-
- for (i = 0; i < PPCBOOT_SYMS; i++)
- *alocation++ = syms++;
- *alocation = NULL;
-
- return PPCBOOT_SYMS;
-}
-
-
-/* Make an empty symbol. */
-
-static asymbol *
-ppcboot_make_empty_symbol (abfd)
- bfd *abfd;
-{
- return (asymbol *) bfd_alloc (abfd, sizeof (asymbol));
-}
-
-
-#define ppcboot_print_symbol _bfd_nosymbols_print_symbol
-
-/* Get information about a symbol. */
-
-static void
-ppcboot_get_symbol_info (ignore_abfd, symbol, ret)
- bfd *ignore_abfd;
- asymbol *symbol;
- symbol_info *ret;
-{
- bfd_symbol_info (symbol, ret);
-}
-
-#define ppcboot_bfd_is_local_label_name bfd_generic_is_local_label_name
-#define ppcboot_get_lineno _bfd_nosymbols_get_lineno
-#define ppcboot_find_nearest_line _bfd_nosymbols_find_nearest_line
-#define ppcboot_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
-#define ppcboot_read_minisymbols _bfd_generic_read_minisymbols
-#define ppcboot_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
-
-#define ppcboot_get_reloc_upper_bound \
- ((long (*) PARAMS ((bfd *, asection *))) bfd_0l)
-#define ppcboot_canonicalize_reloc \
- ((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) bfd_0l)
-#define ppcboot_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
-
-/* Write section contents of a ppcboot file. */
-
-static boolean
-ppcboot_set_section_contents (abfd, sec, data, offset, size)
- bfd *abfd;
- asection *sec;
- PTR data;
- file_ptr offset;
- bfd_size_type size;
-{
- if (! abfd->output_has_begun)
- {
- bfd_vma low;
- asection *s;
-
- /* The lowest section VMA sets the virtual address of the start
- of the file. We use the set the file position of all the
- sections. */
- low = abfd->sections->vma;
- for (s = abfd->sections->next; s != NULL; s = s->next)
- if (s->vma < low)
- low = s->vma;
-
- for (s = abfd->sections; s != NULL; s = s->next)
- s->filepos = s->vma - low;
-
- abfd->output_has_begun = true;
- }
-
- return _bfd_generic_set_section_contents (abfd, sec, data, offset, size);
-}
-
-
-static int
-ppcboot_sizeof_headers (abfd, exec)
- bfd *abfd;
- boolean exec;
-{
- return sizeof (ppcboot_hdr_t);
-}
-
-
-/* Print out the program headers. */
-
-static boolean
-ppcboot_bfd_print_private_bfd_data (abfd, farg)
- bfd *abfd;
- PTR farg;
-{
- FILE *f = (FILE *)farg;
- ppcboot_data_t *tdata = ppcboot_get_tdata (abfd);
- long entry_offset = bfd_getl_signed_32 ((PTR) tdata->header.entry_offset);
- long length = bfd_getl_signed_32 ((PTR) tdata->header.length);
- int i;
-
- fprintf (f, _("\nppcboot header:\n"));
- fprintf (f, _("Entry offset = 0x%.8lx (%ld)\n"), entry_offset, entry_offset);
- fprintf (f, _("Length = 0x%.8lx (%ld)\n"), length, length);
-
- if (tdata->header.flags)
- fprintf (f, _("Flag field = 0x%.2x\n"), tdata->header.flags);
-
- if (tdata->header.os_id)
- fprintf (f, "OS_ID = 0x%.2x\n", tdata->header.os_id);
-
- if (tdata->header.partition_name)
- fprintf (f, _("Partition name = \"%s\"\n"), tdata->header.partition_name);
-
- for (i = 0; i < 4; i++)
- {
- long sector_begin = bfd_getl_signed_32 ((PTR) tdata->header.partition[i].sector_begin);
- long sector_length = bfd_getl_signed_32 ((PTR) tdata->header.partition[i].sector_length);
-
- /* Skip all 0 entries */
- if (!tdata->header.partition[i].partition_begin.ind
- && !tdata->header.partition[i].partition_begin.head
- && !tdata->header.partition[i].partition_begin.sector
- && !tdata->header.partition[i].partition_begin.cylinder
- && !tdata->header.partition[i].partition_end.ind
- && !tdata->header.partition[i].partition_end.head
- && !tdata->header.partition[i].partition_end.sector
- && !tdata->header.partition[i].partition_end.cylinder
- && !sector_begin && !sector_length)
- continue;
-
- fprintf (f, _("\nPartition[%d] start = { 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x }\n"), i,
- tdata->header.partition[i].partition_begin.ind,
- tdata->header.partition[i].partition_begin.head,
- tdata->header.partition[i].partition_begin.sector,
- tdata->header.partition[i].partition_begin.cylinder);
-
- fprintf (f, _("Partition[%d] end = { 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x }\n"), i,
- tdata->header.partition[i].partition_end.ind,
- tdata->header.partition[i].partition_end.head,
- tdata->header.partition[i].partition_end.sector,
- tdata->header.partition[i].partition_end.cylinder);
-
- fprintf (f, _("Partition[%d] sector = 0x%.8lx (%ld)\n"), i, sector_begin, sector_begin);
- fprintf (f, _("Partition[%d] length = 0x%.8lx (%ld)\n"), i, sector_length, sector_length);
- }
-
- fprintf (f, "\n");
- return true;
-}
-
-
-#define ppcboot_bfd_get_relocated_section_contents \
- bfd_generic_get_relocated_section_contents
-#define ppcboot_bfd_relax_section bfd_generic_relax_section
-#define ppcboot_bfd_gc_sections bfd_generic_gc_sections
-#define ppcboot_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
-#define ppcboot_bfd_link_add_symbols _bfd_generic_link_add_symbols
-#define ppcboot_bfd_final_link _bfd_generic_final_link
-#define ppcboot_bfd_link_split_section _bfd_generic_link_split_section
-#define ppcboot_get_section_contents_in_window \
- _bfd_generic_get_section_contents_in_window
-
-#define ppcboot_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
-#define ppcboot_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
-#define ppcboot_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
-#define ppcboot_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
-#define ppcboot_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
-#define ppcboot_bfd_print_private_bfd_dat ppcboot_bfd_print_private_bfd_data
-
-const bfd_target ppcboot_vec =
-{
- "ppcboot", /* name */
- bfd_target_unknown_flavour, /* flavour */
- BFD_ENDIAN_BIG, /* byteorder is big endian for code */
- BFD_ENDIAN_LITTLE, /* header_byteorder */
- EXEC_P, /* object_flags */
- (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
- | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
- 0, /* symbol_leading_char */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getl32, bfd_getl_signed_32, bfd_putl32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
- { /* bfd_check_format */
- _bfd_dummy_target,
- ppcboot_object_p, /* bfd_check_format */
- _bfd_dummy_target,
- _bfd_dummy_target,
- },
- { /* bfd_set_format */
- bfd_false,
- ppcboot_mkobject,
- bfd_false,
- bfd_false,
- },
- { /* bfd_write_contents */
- bfd_false,
- bfd_true,
- bfd_false,
- bfd_false,
- },
-
- BFD_JUMP_TABLE_GENERIC (ppcboot),
- BFD_JUMP_TABLE_COPY (ppcboot),
- BFD_JUMP_TABLE_CORE (_bfd_nocore),
- BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
- BFD_JUMP_TABLE_SYMBOLS (ppcboot),
- BFD_JUMP_TABLE_RELOCS (ppcboot),
- BFD_JUMP_TABLE_WRITE (ppcboot),
- BFD_JUMP_TABLE_LINK (ppcboot),
- BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
-
- NULL
-};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 05:42:57 +0000