Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
+#include "bfdlink.h"
#include "sysdep.h"
#include "libbfd.h"
#include "coff/tic80.h"
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
-#define coff_relocate_section _bfd_coff_generic_relocate_section
-
-static void rtype2howto PARAMS ((arelent *cache_ptr, struct internal_reloc *dst));
+static void rtype2howto
+ PARAMS ((arelent *cache_ptr, struct internal_reloc *dst));
+static bfd_reloc_status_type ppbase_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type glob15_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type glob16_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type local16_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static boolean coff_tic80_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
+ struct internal_reloc *, struct internal_syment *, asection **));
static reloc_howto_type tic80_howto_table[] =
{
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
NULL, /* special_function */
- "32", /* name */
+ "RELLONG", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_MPPCR, /* type */
- 0, /* rightshift */
+ 2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
NULL, /* special_function */
"MPPCR", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
+
+ HOWTO (R_PPBASE, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppbase_reloc, /* special_function */
+ "PPBASE", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPLBASE, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppbase_reloc, /* special_function */
+ "PPLBASE", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PP15, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob15_reloc, /* special_function */
+ "PP15", /* name */
+ true, /* partial_inplace */
+ 0x1ffc0, /* src_mask */
+ 0x1ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PP15W, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob15_reloc, /* special_function */
+ "PP15W", /* name */
+ true, /* partial_inplace */
+ 0x1ffc0, /* src_mask */
+ 0x1ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PP15H, /* type */
+ 1, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob15_reloc, /* special_function */
+ "PP15H", /* name */
+ true, /* partial_inplace */
+ 0x1ffc0, /* src_mask */
+ 0x1ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PP16B, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob16_reloc, /* special_function */
+ "PP16B", /* name */
+ true, /* partial_inplace */
+ 0x3ffc0, /* src_mask */
+ 0x3ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPL15, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "PPL15", /* name */
+ true, /* partial_inplace */
+ 0x7fff, /* src_mask */
+ 0x7fff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPL15W, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "PPL15W", /* name */
+ true, /* partial_inplace */
+ 0x7fff, /* src_mask */
+ 0x7fff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPL15H, /* type */
+ 1, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "PPL15H", /* name */
+ true, /* partial_inplace */
+ 0x7fff, /* src_mask */
+ 0x7fff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPL16B, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ local16_reloc, /* special_function */
+ "PPL16B", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPN15, /* type */
+ 0, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob15_reloc, /* special_function */
+ "PPN15", /* name */
+ true, /* partial_inplace */
+ 0x1ffc0, /* src_mask */
+ 0x1ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPN15W, /* type */
+ 2, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob15_reloc, /* special_function */
+ "PPN15W", /* name */
+ true, /* partial_inplace */
+ 0x1ffc0, /* src_mask */
+ 0x1ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPN15H, /* type */
+ 1, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob15_reloc, /* special_function */
+ "PPN15H", /* name */
+ true, /* partial_inplace */
+ 0x1ffc0, /* src_mask */
+ 0x1ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPN16B, /* type */
+ 0, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 6, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ glob16_reloc, /* special_function */
+ "PPN16B", /* name */
+ true, /* partial_inplace */
+ 0x3ffc0, /* src_mask */
+ 0x3ffc0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPLN15, /* type */
+ 0, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "PPLN15", /* name */
+ true, /* partial_inplace */
+ 0x7fff, /* src_mask */
+ 0x7fff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPLN15W, /* type */
+ 2, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "PPLN15W", /* name */
+ true, /* partial_inplace */
+ 0x7fff, /* src_mask */
+ 0x7fff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPLN15H, /* type */
+ 1, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "PPLN15H", /* name */
+ true, /* partial_inplace */
+ 0x7fff, /* src_mask */
+ 0x7fff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_PPLN16B, /* type */
+ 0, /* rightshift */
+ -2, /* size (0 = byte, 1 = short, 2 = long) */
+ 15, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ local16_reloc, /* special_function */
+ "PPLN16B", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false) /* pcrel_offset */
};
+\f
+/* Special relocation functions, used when the output file is not
+ itself a COFF TIc80 file. */
+
+/* This special function is used for the base address type
+ relocations. */
+
+static bfd_reloc_status_type
+ppbase_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ /* FIXME. */
+ abort ();
+}
+
+/* This special function is used for the global 15 bit relocations. */
+
+static bfd_reloc_status_type
+glob15_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ /* FIXME. */
+ abort ();
+}
+
+/* This special function is used for the global 16 bit relocations. */
+
+static bfd_reloc_status_type
+glob16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ /* FIXME. */
+ abort ();
+}
+/* This special function is used for the local 16 bit relocations. */
+
+static bfd_reloc_status_type
+local16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ /* FIXME. */
+ abort ();
+}
+\f
/* Code to turn an external r_type into a pointer to an entry in the howto_table.
If passed an r_type we don't recognize the abort rather than silently failing
to generate an output file. */
arelent *cache_ptr;
struct internal_reloc *dst;
{
- switch (dst -> r_type)
+ unsigned int i;
+
+ for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
{
- default: abort (); break;
- case R_RELLONG: cache_ptr -> howto = tic80_howto_table + 0; break;
- case R_MPPCR: cache_ptr -> howto = tic80_howto_table + 1; break;
- case R_ABS: cache_ptr -> howto = tic80_howto_table + 2; break;
+ if (tic80_howto_table[i].type == dst->r_type)
+ {
+ cache_ptr->howto = tic80_howto_table + i;
+ return;
+ }
}
+
+ (*_bfd_error_handler) ("Unrecognized reloc type 0x%x",
+ (unsigned int) dst->r_type);
+ cache_ptr->howto = tic80_howto_table + 0;
}
#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
#ifndef BADMAG
#define BADMAG(x) TIC80BADMAG(x)
#endif
+\f
+#define coff_relocate_section coff_tic80_relocate_section
+
+/* We need a special relocation routine to handle the PP relocs. Most
+ of this is a copy of _bfd_coff_generic_relocate_section. */
+
+static boolean
+coff_tic80_relocate_section (output_bfd, info, input_bfd,
+ input_section, contents, relocs, syms,
+ sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ struct internal_reloc *relocs;
+ struct internal_syment *syms;
+ asection **sections;
+{
+ struct internal_reloc *rel;
+ struct internal_reloc *relend;
+
+ rel = relocs;
+ relend = rel + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ long symndx;
+ struct coff_link_hash_entry *h;
+ struct internal_syment *sym;
+ bfd_vma addend;
+ bfd_vma val;
+ reloc_howto_type *howto;
+ bfd_reloc_status_type rstat;
+ bfd_vma addr;
+ symndx = rel->r_symndx;
+
+ if (symndx == -1)
+ {
+ h = NULL;
+ sym = NULL;
+ }
+ else
+ {
+ h = obj_coff_sym_hashes (input_bfd)[symndx];
+ sym = syms + symndx;
+ }
+
+ /* COFF treats common symbols in one of two ways. Either the
+ size of the symbol is included in the section contents, or it
+ is not. We assume that the size is not included, and force
+ the rtype_to_howto function to adjust the addend as needed. */
+
+ if (sym != NULL && sym->n_scnum != 0)
+ addend = - sym->n_value;
+ else
+ addend = 0;
+
+ howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
+ sym, &addend);
+ if (howto == NULL)
+ return false;
+
+ val = 0;
+
+ if (h == NULL)
+ {
+ asection *sec;
+
+ if (symndx == -1)
+ {
+ sec = bfd_abs_section_ptr;
+ val = 0;
+ }
+ else
+ {
+ sec = sections[symndx];
+ val = (sec->output_section->vma
+ + sec->output_offset
+ + sym->n_value);
+ if (! obj_pe (output_bfd))
+ val -= sec->vma;
+ }
+ }
+ else
+ {
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ asection *sec;
+
+ sec = h->root.u.def.section;
+ val = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ }
+
+ else if (! info->relocateable)
+ {
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd, input_section,
+ rel->r_vaddr - input_section->vma)))
+ return false;
+ }
+ }
+
+ addr = rel->r_vaddr - input_section->vma;
+
+ /* FIXME: This code assumes little endian, but the PP can
+ apparently be bi-endian. I don't know if the bi-endianness
+ applies to the instruction set or just to the data. */
+ switch (howto->type)
+ {
+ default:
+ case R_ABS:
+ case R_RELLONGX:
+ case R_PPL15:
+ case R_PPL15W:
+ case R_PPL15H:
+ case R_PPLN15:
+ case R_PPLN15W:
+ case R_PPLN15H:
+ rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, addr, val, addend);
+ break;
+
+ case R_PP15:
+ case R_PP15W:
+ case R_PP15H:
+ case R_PPN15:
+ case R_PPN15W:
+ case R_PPN15H:
+ /* Offset the address so that we can use 4 byte relocations. */
+ rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents + 2, addr, val, addend);
+ break;
+
+ case R_PP16B:
+ case R_PPN16B:
+ {
+ /* The most significant bit is stored in bit 6. */
+ bfd_byte hold;
+
+ hold = contents[addr + 4];
+ contents[addr + 4] &=~ 0x20;
+ contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
+ rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents + 2, addr,
+ val, addend);
+ contents[addr] &=~ 0x40;
+ contents[addr] |= (contents[addr + 4] << 1) & 0x40;
+ contents[addr + 4] &=~ 0x20;
+ contents[addr + 4] |= hold & 0x20;
+ break;
+ }
+
+ case R_PPL16B:
+ case R_PPLN16B:
+ {
+ /* The most significant bit is stored in bit 28. */
+ bfd_byte hold;
+
+ hold = contents[addr + 1];
+ contents[addr + 1] &=~ 0x80;
+ contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
+ rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, addr,
+ val, addend);
+ contents[addr + 3] &= ~0x10;
+ contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
+ contents[addr + 1] &=~ 0x80;
+ contents[addr + 1] |= hold & 0x80;
+ break;
+ }
+
+ case R_PPBASE:
+ /* Parameter RAM is from 0x1000000 to 0x1000800. */
+ contents[addr] &=~ 0x3;
+ if (val >= 0x1000000 && val < 0x1000800)
+ contents[addr] |= 0x3;
+ else
+ contents[addr] |= 0x2;
+ rstat = bfd_reloc_ok;
+ break;
+
+ case R_PPLBASE:
+ /* Parameter RAM is from 0x1000000 to 0x1000800. */
+ contents[addr + 2] &= ~0xc0;
+ if (val >= 0x1000000 && val < 0x1000800)
+ contents[addr + 2] |= 0xc0;
+ else
+ contents[addr + 2] |= 0x80;
+ rstat = bfd_reloc_ok;
+ break;
+ }
+
+ switch (rstat)
+ {
+ default:
+ abort ();
+ case bfd_reloc_ok:
+ break;
+ case bfd_reloc_outofrange:
+ (*_bfd_error_handler)
+ ("%s: bad reloc address 0x%lx in section `%s'",
+ bfd_get_filename (input_bfd),
+ (unsigned long) rel->r_vaddr,
+ bfd_get_section_name (input_bfd, input_section));
+ return false;
+ case bfd_reloc_overflow:
+ {
+ const char *name;
+ char buf[SYMNMLEN + 1];
+
+ if (symndx == -1)
+ name = "*ABS*";
+ else if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+ name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
+ if (name == NULL)
+ return false;
+ }
+
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, name, howto->name, (bfd_vma) 0, input_bfd,
+ input_section, rel->r_vaddr - input_section->vma)))
+ return false;
+ }
+ }
+ }
+ return true;
+}
+\f
#define TIC80 1 /* Customize coffcode.h */
#include "coffcode.h"
projects / binutils-gdb.git / commitdiff