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* elf32-v850.c (elf_v850_howto_table): Fix ordering of

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R_V850_ZDAOFFSET and R_V850_TDAOFFSET.  Fix various
        fields in R_V850_TDAOFFSET.
        (elf32_v850_bfd_final_link_relocate): Tweak pc-relative
        relocs to work more like other relocs.  Handle R_V850_TDAOFF
        relocations.
v850 tda, sda & zda stuff.
This commit is contained in:
Jeff Law 1996-10-23 04:10:41 +00:00
parent 8ea15b863f
commit c322f1b523
2 changed files with 83 additions and 23 deletions
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7
bfd/ChangeLog
View File

@ -1,6 +1,13 @@
start-sanitize-v850
Tue Oct 22 19:20:38 1996 Jeffrey A Law (law@cygnus.com)
* elf32-v850.c (elf_v850_howto_table): Fix ordering of
R_V850_ZDAOFFSET and R_V850_TDAOFFSET. Fix various
fields in R_V850_TDAOFFSET.
(elf32_v850_bfd_final_link_relocate): Tweak pc-relative
relocs to work more like other relocs. Handle R_V850_TDAOFF
relocations.
* elf32-v850.c: Include bfdlink.h.
(bfd_elf32_v850_reloc): Return an error if we get a reloc
we can't handle.

99
bfd/elf32-v850.c
View File

@ -193,7 +193,7 @@ static reloc_howto_type elf_v850_howto_table[] =
/* Offset from the short data area pointer. */
HOWTO (R_V850_SDA_OFFSET, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
0, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
@ -205,21 +205,6 @@ static reloc_howto_type elf_v850_howto_table[] =
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Offset from the tiny data area pointer. */
HOWTO (R_V850_TDA_OFFSET, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_V850_TDA_OFFSET", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Offset from the zero data area pointer. */
HOWTO (R_V850_ZDA_OFFSET, /* type */
0, /* rightshift */
@ -235,6 +220,21 @@ static reloc_howto_type elf_v850_howto_table[] =
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Offset from the tiny data area pointer. */
HOWTO (R_V850_TDA_OFFSET, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_V850_TDA_OFFSET", /* name */
true, /* partial_inplace */
0xff, /* src_mask */
0xff, /* dst_mask */
false), /* pcrel_offset */
};
/* Map BFD reloc types to V850 ELF reloc types. */
@ -458,7 +458,7 @@ elf32_v850_bfd_final_link_relocate (howto, input_bfd, output_bfd,
return bfd_reloc_dangerous;
insn = bfd_get_16 (input_bfd, hit_data);
insn &= 0xf870;
insn &= 0x078f;
insn |= ((value & 0x1f0) << 7) | ((value & 0x0e) << 3);
bfd_put_16 (input_bfd, insn, hit_data);
return bfd_reloc_ok;
@ -475,7 +475,7 @@ elf32_v850_bfd_final_link_relocate (howto, input_bfd, output_bfd,
return bfd_reloc_dangerous;
insn = bfd_get_32 (input_bfd, hit_data);
insn &= ~0xfffe003f;
insn &= 0x1ffc0;
insn |= (((value & 0xfffe) << 16) | ((value & 0x3f0000) >> 16));
bfd_put_32 (input_bfd, insn, hit_data);
return bfd_reloc_ok;
@ -562,7 +562,7 @@ elf32_v850_bfd_final_link_relocate (howto, input_bfd, output_bfd,
unsigned long ep;
struct bfd_link_hash_entry *h;
value += bfd_get_16 (input_bfd, hit_data);
insn = bfd_get_16 (input_bfd, hit_data);
/* Get the value of __ep. */
h = bfd_link_hash_lookup (info->hash, "__ep", false,
@ -577,11 +577,64 @@ elf32_v850_bfd_final_link_relocate (howto, input_bfd, output_bfd,
value -= ep;
if ((long)value > 0x7fff || (long)value < -0x8000)
return bfd_reloc_overflow;
/* Overflow computation and operand insertion is complicated
by valid offsets and insertions changing depending on the
instruction being used! */
if ((insn & 0x0780) == 0x0500)
{
value += ((insn & 0x7f) << 2);
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
/* Handle sld.w and sst.w -- 8 bit unsigned offset */
if ((long) value > 0xff || (long) value < 0)
return bfd_reloc_overflow;
if ((value % 4) != 0)
return bfd_reloc_dangerous;
insn &= 0xff81;
insn |= (value >> 1);
bfd_put_16 (input_bfd, insn, hit_data);
return bfd_reloc_ok;
}
if ((insn & 0x0780) == 0x0400 || (insn & 0x0780) == 0x0480)
{
value += ((insn & 0x7f) << 1);
/* Handle sld.h and sst.h -- 8 bit unsigned offset */
if ((long) value > 0xff || (long) value < 0)
return bfd_reloc_overflow;
if ((value % 2) != 0)
return bfd_reloc_dangerous;
insn &= 0xff80;
insn |= (value >> 1);
bfd_put_16 (input_bfd, insn, hit_data);
return bfd_reloc_ok;
}
if ((insn & 0x0780) == 0x0300 || (insn & 0x0780) == 0x0380)
{
value += (insn & 0x7f);
/* Handle sld.b and sst.b -- 7 bit unsigned offset */
if ((long) value > 0x7f || (long) value < 0)
return bfd_reloc_overflow;
insn &= 0xff80;
insn |= value;
bfd_put_16 (input_bfd, insn, hit_data);
return bfd_reloc_ok;
}
/* Guess (XXX) that it's a movea instruction or something
similar. */
value += insn;
if ((long)value > 0x7fff || (long)value < -0x8000)
return bfd_reloc_overflow;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
case R_V850_NONE: