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* config/tc-ia64.c (FUNC_PC_RELATIVE): New.

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(pseudo_func): Add pcrel.
        (operand_match):  Handle IA64_OPND_TGT64.
        (build_insn): Likewise.
        (md_begin): Initialize pseudo_func[FUNC_PC_RELATIVE].
        (ia64_gen_real_reloc_type): Handle FUNC_PC_RELATIVE.
        (fix_insn): Handle all three 64-bit relocation types.
This commit is contained in:
Richard Henderson
2000-05-23 01:48:04 +00:00
parent 748abff62c
commit c67e42c950
2 changed files with 153 additions and 77 deletions
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10
gas/ChangeLog
View File

@@ -1,3 +1,13 @@
2000-05-22 Richard Henderson <rth@cygnus.com>
* config/tc-ia64.c (FUNC_PC_RELATIVE): New.
(pseudo_func): Add pcrel.
(operand_match): Handle IA64_OPND_TGT64.
(build_insn): Likewise.
(md_begin): Initialize pseudo_func[FUNC_PC_RELATIVE].
(ia64_gen_real_reloc_type): Handle FUNC_PC_RELATIVE.
(fix_insn): Handle all three 64-bit relocation types.
Mon May 22 22:43:32 2000 Hans-Peter Nilsson <hp@axis.com>
* obj.h (struct format_ops): New members begin, app_file,

168
gas/config/tc-ia64.c
View File

@@ -77,6 +77,7 @@ enum reloc_func
FUNC_FPTR_RELATIVE,
FUNC_GP_RELATIVE,
FUNC_LT_RELATIVE,
FUNC_PC_RELATIVE,
FUNC_PLT_RELATIVE,
FUNC_SEC_RELATIVE,
FUNC_SEG_RELATIVE,
@@ -434,6 +435,7 @@ pseudo_func[] =
{ "fptr", PSEUDO_FUNC_RELOC },
{ "gprel", PSEUDO_FUNC_RELOC },
{ "ltoff", PSEUDO_FUNC_RELOC },
{ "pcrel", PSEUDO_FUNC_RELOC },
{ "pltoff", PSEUDO_FUNC_RELOC },
{ "secrel", PSEUDO_FUNC_RELOC },
{ "segrel", PSEUDO_FUNC_RELOC },
@@ -4003,9 +4005,11 @@ operand_match (idesc, index, e)
fix->code = BFD_RELOC_IA64_PCREL21M;
else if (opnd == IA64_OPND_TGT25c)
fix->code = BFD_RELOC_IA64_PCREL21B;
else if (opnd == IA64_OPND_TGT64)
fix->code = BFD_RELOC_IA64_PCREL60B;
else
/* FIXME -- use appropriate relocation type */
as_bad (_("long branch targets not implemented"));
abort ();
fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code);
fix->opnd = idesc->operands[index];
fix->expr = *e;
@@ -4222,58 +4226,82 @@ build_insn (slot, insnp)
for (i = 0; i < NELEMS (idesc->operands) && idesc->operands[i]; ++i)
{
if (idesc->operands[i] == IA64_OPND_IMMU64)
{
val = slot->opnd[i].X_add_number;
*insnp++ = (val >> 22) & 0x1ffffffffffLL;
insn |= (((val & 0x7f) << 13) | (((val >> 7) & 0x1ff) << 27)
| (((val >> 16) & 0x1f) << 22) | (((val >> 21) & 0x1) << 21)
| (((val >> 63) & 0x1) << 36));
}
else if (idesc->operands[i] == IA64_OPND_IMMU62)
{
val = slot->opnd[i].X_add_number & 0x3fffffffffffffffULL;
if (val != slot->opnd[i].X_add_number)
as_warn (_("Value truncated to 62 bits"));
*insnp++ = (val >> 21) & 0x1ffffffffffLL;
insn |= (((val & 0xfffff) << 6) | (((val >> 20) & 0x1) << 36));
}
else if (idesc->operands[i] == IA64_OPND_TGT64)
{
// FIXME -- need to implement the target address encoding properly
as_bad (_("long branch target encoding not implemented"));
*insnp++ = 0;
}
else if (slot->opnd[i].X_op == O_register
if (slot->opnd[i].X_op == O_register
|| slot->opnd[i].X_op == O_constant
|| slot->opnd[i].X_op == O_index
|| slot->opnd[i].X_op == O_big)
{
if (slot->opnd[i].X_op == O_big)
|| slot->opnd[i].X_op == O_index)
val = slot->opnd[i].X_add_number;
else if (slot->opnd[i].X_op == O_big)
{
/* This must be the value 0x10000000000000000. */
assert (idesc->operands[i] == IA64_OPND_IMM8M1U8);
val = 0;
}
else
val = slot->opnd[i].X_add_number;
val = 0;
switch (idesc->operands[i])
{
case IA64_OPND_AR3: val -= REG_AR; break;
case IA64_OPND_B1: case IA64_OPND_B2: val -= REG_BR; break;
case IA64_OPND_CR3: val -= REG_CR; break;
case IA64_OPND_F1: case IA64_OPND_F2:
case IA64_OPND_F3: case IA64_OPND_F4: val -= REG_FR; break;
case IA64_OPND_P1: case IA64_OPND_P2: val -= REG_P; break;
case IA64_OPND_IMMU64:
*insnp++ = (val >> 22) & 0x1ffffffffffLL;
insn |= (((val & 0x7f) << 13) | (((val >> 7) & 0x1ff) << 27)
| (((val >> 16) & 0x1f) << 22) | (((val >> 21) & 0x1) << 21)
| (((val >> 63) & 0x1) << 36));
continue;
case IA64_OPND_R1: case IA64_OPND_R2:
case IA64_OPND_R3: case IA64_OPND_R3_2:
case IA64_OPND_CPUID_R3: case IA64_OPND_DBR_R3:
case IA64_OPND_DTR_R3: case IA64_OPND_ITR_R3:
case IA64_OPND_IBR_R3: case IA64_OPND_MR3:
case IA64_OPND_MSR_R3: case IA64_OPND_PKR_R3:
case IA64_OPND_PMC_R3: case IA64_OPND_PMD_R3:
case IA64_OPND_IMMU62:
val &= 0x3fffffffffffffffULL;
if (val != slot->opnd[i].X_add_number)
as_warn (_("Value truncated to 62 bits"));
*insnp++ = (val >> 21) & 0x1ffffffffffLL;
insn |= (((val & 0xfffff) << 6) | (((val >> 20) & 0x1) << 36));
continue;
case IA64_OPND_TGT64:
val >>= 4;
*insnp++ = ((val >> 20) & 0x7fffffffffLL) << 2;
insn |= ((((val >> 59) & 0x1) << 36)
| (((val >> 0) & 0xfffff) << 13));
continue;
case IA64_OPND_AR3:
val -= REG_AR;
break;
case IA64_OPND_B1:
case IA64_OPND_B2:
val -= REG_BR;
break;
case IA64_OPND_CR3:
val -= REG_CR;
break;
case IA64_OPND_F1:
case IA64_OPND_F2:
case IA64_OPND_F3:
case IA64_OPND_F4:
val -= REG_FR;
break;
case IA64_OPND_P1:
case IA64_OPND_P2:
val -= REG_P;
break;
case IA64_OPND_R1:
case IA64_OPND_R2:
case IA64_OPND_R3:
case IA64_OPND_R3_2:
case IA64_OPND_CPUID_R3:
case IA64_OPND_DBR_R3:
case IA64_OPND_DTR_R3:
case IA64_OPND_ITR_R3:
case IA64_OPND_IBR_R3:
case IA64_OPND_MR3:
case IA64_OPND_MSR_R3:
case IA64_OPND_PKR_R3:
case IA64_OPND_PMC_R3:
case IA64_OPND_PMD_R3:
case IA64_OPND_RR_R3:
val -= REG_GR;
break;
@@ -4281,6 +4309,7 @@ build_insn (slot, insnp)
default:
break;
}
odesc = elf64_ia64_operands + idesc->operands[i];
err = (*odesc->insert) (odesc, val, &insn);
if (err)
@@ -4293,7 +4322,6 @@ build_insn (slot, insnp)
{
o2desc = elf64_ia64_operands + IA64_OPND_F2;
(*o2desc->insert) (o2desc, val, &insn);
}
if ((idesc->flags & IA64_OPCODE_LEN_EQ_64MCNT)
&& (odesc == elf64_ia64_operands + IA64_OPND_CPOS6a
@@ -4304,7 +4332,6 @@ build_insn (slot, insnp)
}
}
}
}
*insnp = insn;
}
@@ -4797,6 +4824,10 @@ md_begin ()
symbol_new (".<ltoff>", undefined_section, FUNC_LT_RELATIVE,
&zero_address_frag);
pseudo_func[FUNC_PC_RELATIVE].u.sym =
symbol_new (".<pcrel>", undefined_section, FUNC_PC_RELATIVE,
&zero_address_frag);
pseudo_func[FUNC_PLT_RELATIVE].u.sym =
symbol_new (".<pltoff>", undefined_section, FUNC_PLT_RELATIVE,
&zero_address_frag);
@@ -7960,6 +7991,19 @@ ia64_gen_real_reloc_type (sym, r_type)
}
break;
case FUNC_PC_RELATIVE:
switch (r_type)
{
case BFD_RELOC_IA64_IMM22: new = BFD_RELOC_IA64_PCREL22; break;
case BFD_RELOC_IA64_IMM64: new = BFD_RELOC_IA64_PCREL64I; break;
case BFD_RELOC_IA64_DIR32MSB: new = BFD_RELOC_IA64_PCREL32MSB; break;
case BFD_RELOC_IA64_DIR32LSB: new = BFD_RELOC_IA64_PCREL32LSB; break;
case BFD_RELOC_IA64_DIR64MSB: new = BFD_RELOC_IA64_PCREL64MSB; break;
case BFD_RELOC_IA64_DIR64LSB: new = BFD_RELOC_IA64_PCREL64LSB; break;
default: break;
}
break;
case FUNC_PLT_RELATIVE:
switch (r_type)
{
@@ -8063,7 +8107,7 @@ fix_insn (fix, odesc, value)
slot = fix->fx_where & 0x3;
fixpos = fix->fx_frag->fr_literal + (fix->fx_where - slot);
/* bundles are always in little-endian byte order */
/* Bundles are always in little-endian byte order */
t0 = bfd_getl64 (fixpos);
t1 = bfd_getl64 (fixpos + 8);
control_bits = t0 & 0x1f;
@@ -8071,18 +8115,40 @@ fix_insn (fix, odesc, value)
insn[1] = ((t0 >> 46) & 0x3ffff) | ((t1 & 0x7fffff) << 18);
insn[2] = (t1 >> 23) & 0x1ffffffffffLL;
err = (*odesc->insert) (odesc, value, insn + slot);
if (err)
err = NULL;
if (odesc - elf64_ia64_operands == IA64_OPND_IMMU64)
{
as_bad_where (fix->fx_file, fix->fx_line, err);
return;
insn[1] = (value >> 22) & 0x1ffffffffffLL;
insn[2] |= (((value & 0x7f) << 13)
| (((value >> 7) & 0x1ff) << 27)
| (((value >> 16) & 0x1f) << 22)
| (((value >> 21) & 0x1) << 21)
| (((value >> 63) & 0x1) << 36));
}
else if (odesc - elf64_ia64_operands == IA64_OPND_IMMU62)
{
if (value & ~0x3fffffffffffffffULL)
err = "integer operand out of range";
insn[1] = (value >> 21) & 0x1ffffffffffLL;
insn[2] |= (((value & 0xfffff) << 6) | (((value >> 20) & 0x1) << 36));
}
else if (odesc - elf64_ia64_operands == IA64_OPND_TGT64)
{
value >>= 4;
insn[1] = ((value >> 20) & 0x7fffffffffLL) << 2;
insn[2] |= ((((value >> 59) & 0x1) << 36)
| (((value >> 0) & 0xfffff) << 13));
}
else
err = (*odesc->insert) (odesc, value, insn + slot);
if (err)
as_bad_where (fix->fx_file, fix->fx_line, err);
t0 = control_bits | (insn[0] << 5) | (insn[1] << 46);
t1 = ((insn[1] >> 18) & 0x7fffff) | (insn[2] << 23);
md_number_to_chars (fixpos + 0, t0, 8);
md_number_to_chars (fixpos + 8, t1, 8);
}
/* Attempt to simplify or even eliminate a fixup. The return value is