mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-25 05:00:01 +00:00
2003-08-23 Jason Eckhardt <jle@rice.edu>
[bfd/ChangeLog]
* coff-i860.c (coff_i860_reloc_nyi): New function.
(howto_table): Add entries for relocations PAIR, HIGHADJ, HIGH,
LOWn, SPLITn, and BRADDR.
(RTYPE2HOWTO): Check that the r_type is within the howto_table
before trying to access the entry.
(coff_i860_rtype_to_howto): Likewise.
(coff_i860_reloc_type_lookup): New function.
(i860_reloc_processing): New function.
(coff_bfd_reloc_type_lookup): Define macro.
(RELOC_PROCESSING): Define macro.
Minor formatting adjustments.
[include/coff/ChangeLog]
* coff/i860.h (COFF860_R_PAIR, COFF860_R_LOW0, COFF860_R_LOW1,
COFF860_R_LOW2, COFF860_R_LOW3, COFF860_R_LOW4, COFF860_R_SPLIT0,
COFF860_R_SPLIT1, COFF860_R_SPLIT2, COFF860_R_HIGHADJ,
COFF860_R_BRADDR): Define new relocation constants and document.
Minor formatting adjustments.
This commit is contained in:
Jason Eckhardt
parent
0485f6ad30
commit
c28b1c2869
@ -1,3 +1,17 @@
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2003-08-23 Jason Eckhardt <jle@rice.edu>
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* coff-i860.c (coff_i860_reloc_nyi): New function.
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(howto_table): Add entries for relocations PAIR, HIGHADJ, HIGH,
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LOWn, SPLITn, and BRADDR.
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(RTYPE2HOWTO): Check that the r_type is within the howto_table
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before trying to access the entry.
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(coff_i860_rtype_to_howto): Likewise.
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(coff_i860_reloc_type_lookup): New function.
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(i860_reloc_processing): New function.
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(coff_bfd_reloc_type_lookup): Define macro.
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(RELOC_PROCESSING): Define macro.
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Minor formatting adjustments.
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2003-08-23 Alan Modra <amodra@bigpond.net.au>
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* elflink.h (elf_link_add_object_symbols): Don't crash on NULL owner.
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305
bfd/coff-i860.c
305
bfd/coff-i860.c
@ -1,4 +1,4 @@
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/* BFD back-end for Intel 860 COFF files.
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/* BFD back-end for Intel i860 COFF files.
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1999, 2000, 2001, 2002, 2003
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Free Software Foundation, Inc.
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Created mostly by substituting "860" for "386" in coff-i386.c
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@ -126,6 +126,22 @@ coff_i860_reloc (bfd *abfd,
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return bfd_reloc_continue;
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}
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/* This is just a temporary measure until we teach bfd to generate
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these relocations. */
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static bfd_reloc_status_type
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coff_i860_reloc_nyi (bfd *abfd ATTRIBUTE_UNUSED,
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arelent *reloc_entry,
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asymbol *symbol ATTRIBUTE_UNUSED,
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void *data ATTRIBUTE_UNUSED,
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asection *input_section ATTRIBUTE_UNUSED,
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bfd *output_bfd ATTRIBUTE_UNUSED,
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char **error_message ATTRIBUTE_UNUSED)
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{
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reloc_howto_type *howto = reloc_entry->howto;
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fprintf (stderr, _("Relocation `%s' not yet implemented\n"), howto->name);
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}
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#ifndef PCRELOFFSET
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#define PCRELOFFSET FALSE
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#endif
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@ -249,17 +265,184 @@ static reloc_howto_type howto_table[] =
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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PCRELOFFSET) /* pcrel_offset */
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PCRELOFFSET), /* pcrel_offset */
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EMPTY_HOWTO (0x15),
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EMPTY_HOWTO (0x16),
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EMPTY_HOWTO (0x17),
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EMPTY_HOWTO (0x18),
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EMPTY_HOWTO (0x19),
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EMPTY_HOWTO (0x1a),
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EMPTY_HOWTO (0x1b),
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HOWTO (COFF860_R_PAIR, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc_nyi, /* special_function */
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"PAIR", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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EMPTY_HOWTO (0x1d),
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HOWTO (COFF860_R_HIGH, /* type */
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16, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc, /* special_function */
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"HIGH", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_LOW0, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc, /* special_function */
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"LOW0", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_LOW1, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc, /* special_function */
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"LOW1", /* name */
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FALSE, /* partial_inplace */
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0xfffe, /* src_mask */
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0xfffe, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_LOW2, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc, /* special_function */
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"LOW2", /* name */
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FALSE, /* partial_inplace */
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0xfffc, /* src_mask */
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0xfffc, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_LOW3, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc, /* special_function */
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"LOW3", /* name */
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FALSE, /* partial_inplace */
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0xfff8, /* src_mask */
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0xfff8, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_LOW4, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc, /* special_function */
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"LOW4", /* name */
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FALSE, /* partial_inplace */
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0xfff0, /* src_mask */
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0xfff0, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_SPLIT0, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc_nyi, /* special_function */
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"SPLIT0", /* name */
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FALSE, /* partial_inplace */
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0x1f07ff, /* src_mask */
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0x1f07ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_SPLIT1, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc_nyi, /* special_function */
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"SPLIT1", /* name */
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FALSE, /* partial_inplace */
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0x1f07fe, /* src_mask */
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0x1f07fe, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_SPLIT2, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc_nyi, /* special_function */
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"SPLIT2", /* name */
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FALSE, /* partial_inplace */
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0x1f07fc, /* src_mask */
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0x1f07fc, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_HIGHADJ, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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coff_i860_reloc_nyi, /* special_function */
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"HIGHADJ", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (COFF860_R_BRADDR, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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26, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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coff_i860_reloc_nyi, /* special_function */
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"BRADDR", /* name */
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FALSE, /* partial_inplace */
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0x3ffffff, /* src_mask */
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0x3ffffff, /* dst_mask */
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TRUE) /* pcrel_offset */
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};
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/* Turn a howto into a reloc nunmber */
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/* Turn a howto into a reloc number. */
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#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
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#define BADMAG(x) I860BADMAG(x)
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#define I860 1 /* Customize coffcode.h */
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#define RTYPE2HOWTO(cache_ptr, dst) \
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(cache_ptr)->howto = howto_table + (dst)->r_type;
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#define RTYPE2HOWTO(cache_ptr, dst) \
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((cache_ptr)->howto = \
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((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0]) \
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? howto_table + (dst)->r_type \
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: NULL))
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/* For 860 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
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library. On some other COFF targets STYP_BSS is normally
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@ -313,6 +496,12 @@ coff_i860_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
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reloc_howto_type *howto;
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if (rel->r_type > sizeof (howto_table) / sizeof (howto_table[0]))
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{
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bfd_set_error (bfd_error_bad_value);
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return NULL;
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}
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howto = howto_table + rel->r_type;
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if (howto->pc_relative)
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@ -346,7 +535,111 @@ coff_i860_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
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return howto;
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}
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#define coff_rtype_to_howto coff_i860_rtype_to_howto
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static reloc_howto_type *
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coff_i860_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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bfd_reloc_code_real_type code)
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{
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switch (code)
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{
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case BFD_RELOC_32:
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return howto_table + R_DIR32;
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case BFD_RELOC_860_PC26:
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return howto_table + COFF860_R_BRADDR;
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case BFD_RELOC_860_PC16:
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/* ??? How to handle PC16 for COFF? SPLIT0 is close for now. */
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return howto_table + COFF860_R_SPLIT0;
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case BFD_RELOC_860_LOW0:
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return howto_table + COFF860_R_LOW0;
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case BFD_RELOC_860_SPLIT0:
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return howto_table + COFF860_R_SPLIT0;
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case BFD_RELOC_860_LOW1:
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return howto_table + COFF860_R_LOW1;
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case BFD_RELOC_860_SPLIT1:
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return howto_table + COFF860_R_SPLIT1;
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case BFD_RELOC_860_LOW2:
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return howto_table + COFF860_R_LOW2;
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case BFD_RELOC_860_SPLIT2:
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return howto_table + COFF860_R_SPLIT2;
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case BFD_RELOC_860_LOW3:
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return howto_table + COFF860_R_LOW3;
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case BFD_RELOC_860_HIGHADJ:
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return howto_table + COFF860_R_HIGHADJ;
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case BFD_RELOC_860_HIGH:
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return howto_table + COFF860_R_HIGH;
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default:
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BFD_FAIL ();
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return 0;
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}
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}
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/* This is called from coff_slurp_reloc_table for each relocation
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entry. This special handling is due to the `PAIR' relocation
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which has a different meaning for the `r_symndx' field. */
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static void
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i860_reloc_processing (arelent *cache_ptr, struct internal_reloc *dst,
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asymbol **symbols, bfd *abfd, asection *asect)
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{
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if (dst->r_type == COFF860_R_PAIR)
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{
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/* Handle the PAIR relocation specially. */
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cache_ptr->howto = howto_table + dst->r_type;
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cache_ptr->address = dst->r_vaddr;
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cache_ptr->addend = dst->r_symndx;
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cache_ptr->sym_ptr_ptr= bfd_abs_section_ptr->symbol_ptr_ptr;
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}
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else
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{
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/* For every other relocation, do exactly what coff_slurp_reloc_table
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would do (which this code is taken directly from). */
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asymbol *ptr = NULL;
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cache_ptr->address = dst->r_vaddr;
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if (dst->r_symndx != -1)
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{
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if (dst->r_symndx < 0 || dst->r_symndx >= obj_conv_table_size (abfd))
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{
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(*_bfd_error_handler)
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(_("%s: warning: illegal symbol index %ld in relocs"),
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bfd_archive_filename (abfd), dst->r_symndx);
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cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
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ptr = NULL;
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}
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else
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{
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cache_ptr->sym_ptr_ptr = (symbols
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+ obj_convert (abfd)[dst->r_symndx]);
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ptr = *(cache_ptr->sym_ptr_ptr);
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}
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}
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else
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{
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cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
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ptr = NULL;
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}
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/* The symbols definitions that we have read in have been
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relocated as if their sections started at 0. But the offsets
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refering to the symbols in the raw data have not been
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modified, so we have to have a negative addend to compensate.
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Note that symbols which used to be common must be left alone. */
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/* Calculate any reloc addend by looking at the symbol. */
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CALC_ADDEND (abfd, ptr, (*dst), cache_ptr);
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cache_ptr->address -= asect->vma;
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/* Fill in the cache_ptr->howto field from dst->r_type. */
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RTYPE2HOWTO (cache_ptr, dst);
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}
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}
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#define coff_rtype_to_howto coff_i860_rtype_to_howto
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#define coff_bfd_reloc_type_lookup coff_i860_reloc_type_lookup
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#define RELOC_PROCESSING(relent, reloc, symbols, abfd, section) \
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i860_reloc_processing (relent, reloc, symbols, abfd, section)
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#include "coffcode.h"
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@ -1,3 +1,11 @@
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2003-08-23 Jason Eckhardt <jle@rice.edu>
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* coff/i860.h (COFF860_R_PAIR, COFF860_R_LOW0, COFF860_R_LOW1,
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COFF860_R_LOW2, COFF860_R_LOW3, COFF860_R_LOW4, COFF860_R_SPLIT0,
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COFF860_R_SPLIT1, COFF860_R_SPLIT2, COFF860_R_HIGHADJ,
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COFF860_R_BRADDR): Define new relocation constants and document.
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Minor formatting adjustments.
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2003-08-07 Alan Modra <amodra@bigpond.net.au>
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* ti.h (GET_SCNHDR_NRELOC): Rename PTR param to LOC.
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@ -1,6 +1,6 @@
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/* coff information for Intel 860.
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/* COFF information for the Intel i860.
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Copyright 2001 Free Software Foundation, Inc.
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Copyright 2001, 2003 Free Software Foundation, Inc.
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|
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This program is free software; you can redistribute it and/or modify
|
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it under the terms of the GNU General Public License as published by
|
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@ -55,3 +55,32 @@ struct external_reloc
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#define RELOC struct external_reloc
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#define RELSZ 10
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/* The relocation directory entry types.
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PAIR : The low half that follows relates to the preceeding HIGH[ADJ].
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HIGH : The high half of a 32-bit constant.
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LOWn : The low half, insn bits 15..(n-1), 2^n-byte aligned.
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SPLITn : The low half, insn bits 20..16 and 10..(n-1), 2^n-byte aligned.
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HIGHADJ: Similar to HIGH, but with adjustment.
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BRADDR : 26-bit branch displacement.
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||||
|
||||
Note: The Intel assembler manual lists LOW4 as one of the
|
||||
relocation types, but it appears to be useless for the i860.
|
||||
We will recognize it anyway, just in case it actually appears in
|
||||
any object files. */
|
||||
|
||||
enum {
|
||||
COFF860_R_PAIR = 0x1c,
|
||||
COFF860_R_HIGH = 0x1e,
|
||||
COFF860_R_LOW0 = 0x1f,
|
||||
COFF860_R_LOW1 = 0x20,
|
||||
COFF860_R_LOW2 = 0x21,
|
||||
COFF860_R_LOW3 = 0x22,
|
||||
COFF860_R_LOW4 = 0x23,
|
||||
COFF860_R_SPLIT0 = 0x24,
|
||||
COFF860_R_SPLIT1 = 0x25,
|
||||
COFF860_R_SPLIT2 = 0x26,
|
||||
COFF860_R_HIGHADJ = 0x27,
|
||||
COFF860_R_BRADDR = 0x28
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user