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* cgen.c: Whitespace fixes.
(weak_operand_overflow_check): Formatting fix.
This commit is contained in:
Doug Evans
parent
2c9e074a02
commit
fae0b24234
@ -1,3 +1,8 @@
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2010-02-25 Doug Evans <dje@sebabeach.org>
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* cgen.c: Whitespace fixes.
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(weak_operand_overflow_check): Formatting fix.
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2010-02-25 H.J. Lu <hongjiu.lu@intel.com>
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* config/tc-i386.c (match_template): Update error messages.
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69
gas/cgen.c
69
gas/cgen.c
@ -410,7 +410,7 @@ gas_cgen_parse_operand (cd, want, strP, opindex, opinfo, resultP, valueP)
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#ifdef TC_CGEN_PARSE_FIX_EXP
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opinfo_1 = TC_CGEN_PARSE_FIX_EXP (opinfo_1, & exp);
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#endif
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#endif
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/* FIXME: Need to check `want'. */
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@ -466,15 +466,15 @@ gas_cgen_parse_operand (cd, want, strP, opindex, opinfo, resultP, valueP)
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stmp = symbol_create (FAKE_LABEL_NAME, expr_section, 0,
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& zero_address_frag);
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symbol_set_value_expression (stmp, & exp);
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}
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else
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}
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else
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stmp = make_expr_symbol (& exp);
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/* If this is a pc-relative RELC operand, we
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need to subtract "." from the expression. */
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need to subtract "." from the expression. */
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if (reloc_type == BFD_RELOC_RELC
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&& CGEN_OPERAND_ATTR_VALUE (operand, CGEN_OPERAND_PCREL_ADDR))
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stmp = expr_build_binary (O_subtract, stmp, expr_build_dot ());
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stmp = expr_build_binary (O_subtract, stmp, expr_build_dot ());
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/* FIXME: this is not a perfect heuristic for figuring out
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whether an operand is signed: it only works when the operand
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@ -482,7 +482,7 @@ gas_cgen_parse_operand (cd, want, strP, opindex, opinfo, resultP, valueP)
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values will be signed relocs, but it's possible. */
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if (operand && (operand->hw_type == HW_H_SINT))
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signed_p = 1;
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if (stmp->bsym && (stmp->bsym->section == expr_section))
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{
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if (signed_p)
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@ -490,16 +490,16 @@ gas_cgen_parse_operand (cd, want, strP, opindex, opinfo, resultP, valueP)
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else
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stmp->bsym->flags |= BSF_RELC;
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}
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/* Now package it all up for the fixup emitter. */
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exp.X_op = O_symbol;
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exp.X_op_symbol = 0;
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exp.X_add_symbol = stmp;
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exp.X_add_number = 0;
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/* Re-init rightshift quantity, just in case. */
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rightshift = operand->length;
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queue_fixup_recursively (opindex, opinfo_1, & exp,
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queue_fixup_recursively (opindex, opinfo_1, & exp,
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(reloc_type == BFD_RELOC_RELC) ?
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& (operand->index_fields) : 0,
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signed_p, -1);
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@ -512,7 +512,7 @@ gas_cgen_parse_operand (cd, want, strP, opindex, opinfo, resultP, valueP)
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queue_fixup (opindex, opinfo_1, &exp);
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*valueP = 0;
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*resultP = CGEN_PARSE_OPERAND_RESULT_QUEUED;
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#endif
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#endif
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break;
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}
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@ -710,9 +710,9 @@ queue_fixup_recursively (const int opindex,
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if (field && field->count)
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{
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int i;
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for (i = 0; i < field->count; ++ i)
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queue_fixup_recursively (opindex, opinfo, expP,
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queue_fixup_recursively (opindex, opinfo, expP,
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& (field->val.multi[i]), signed_p, i);
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}
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else
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@ -731,20 +731,20 @@ queue_fixup_recursively (const int opindex,
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/* Shift reloc value by number of bits remaining after this
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field. */
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if (rightshift)
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new_exp = make_right_shifted_expr (expP, rightshift, signed_p);
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new_exp = make_right_shifted_expr (expP, rightshift, signed_p);
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}
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/* Truncate reloc values to length, *after* leftmost one. */
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fixups[num_fixups].msb_field_p = (part_of_multi <= 0);
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fixups[num_fixups].field = (CGEN_MAYBE_MULTI_IFLD *) field;
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queue_fixup (opindex, opinfo, new_exp);
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}
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}
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/* Encode the self-describing RELC reloc format's addend. */
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static unsigned long
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static unsigned long
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gas_cgen_encode_addend (const unsigned long start, /* in bits */
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const unsigned long len, /* in bits */
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const unsigned long oplen, /* in bits */
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@ -774,7 +774,7 @@ gas_cgen_encode_addend (const unsigned long start, /* in bits */
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parse. when these %operators are translated to expressions by the macro
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expander, the ambiguity returns. we attempt to disambiguate by field
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size.
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Method: check to see if the expression's top node is an O_and operator,
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and the mask is larger than the operand length. This would be an
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overflow, so signal it by returning an error string. Any other case is
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@ -794,23 +794,23 @@ weak_operand_overflow_check (const expressionS * exp,
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if (exp->X_op != O_bit_and)
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{
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/* Check for implicit overflow flag. */
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if (CGEN_OPERAND_ATTR_VALUE
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if (CGEN_OPERAND_ATTR_VALUE
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(operand, CGEN_OPERAND_RELOC_IMPLIES_OVERFLOW))
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return _("a reloc on this operand implies an overflow");
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return NULL;
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}
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mask = exp->X_add_number;
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if (exp->X_add_symbol &&
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exp->X_add_symbol->sy_value.X_op == O_constant)
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if (exp->X_add_symbol
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&& exp->X_add_symbol->sy_value.X_op == O_constant)
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mask |= exp->X_add_symbol->sy_value.X_add_number;
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if (exp->X_op_symbol &&
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exp->X_op_symbol->sy_value.X_op == O_constant)
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if (exp->X_op_symbol
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&& exp->X_op_symbol->sy_value.X_op == O_constant)
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mask |= exp->X_op_symbol->sy_value.X_add_number;
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/* Want to know if mask covers more bits than opmask.
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/* Want to know if mask covers more bits than opmask.
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this is the same as asking if mask has any bits not in opmask,
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or whether (mask & ~opmask) is nonzero. */
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if (mask && (mask & ~opmask))
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@ -822,10 +822,9 @@ weak_operand_overflow_check (const expressionS * exp,
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return _("operand mask overflow");
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}
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return NULL;
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return NULL;
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}
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static expressionS *
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make_right_shifted_expr (expressionS * exp,
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const int amount,
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@ -834,15 +833,15 @@ make_right_shifted_expr (expressionS * exp,
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symbolS * stmp = 0;
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expressionS * new_exp;
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stmp = expr_build_binary (O_right_shift,
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stmp = expr_build_binary (O_right_shift,
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make_expr_symbol (exp),
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expr_build_uconstant (amount));
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if (signed_p)
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stmp->bsym->flags |= BSF_SRELC;
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else
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stmp->bsym->flags |= BSF_RELC;
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/* Then wrap that in a "symbol expr" for good measure. */
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new_exp = xmalloc (sizeof (expressionS));
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memset (new_exp, 0, sizeof (expressionS));
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@ -850,10 +849,12 @@ make_right_shifted_expr (expressionS * exp,
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new_exp->X_op_symbol = 0;
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new_exp->X_add_symbol = stmp;
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new_exp->X_add_number = 0;
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return new_exp;
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}
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#endif
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/* Apply a fixup to the object code. This is called for all the
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fixups we generated by the call to fix_new_exp, above. In the call
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above we used a reloc code which was the largest legal reloc code
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@ -897,7 +898,7 @@ gas_cgen_md_apply_fix (fixP, valP, seg)
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int signed_p = 0;
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if (fixP->fx_cgen.field)
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{
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{
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/* Use the twisty little pointer path
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back to the ifield if it exists. */
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start = fixP->fx_cgen.field->val.leaf->start;
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@ -964,9 +965,9 @@ gas_cgen_md_apply_fix (fixP, valP, seg)
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/* Change addend to "self-describing" form,
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for BFD to handle in the linker. */
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value = gas_cgen_encode_addend (start, operand->length,
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length, fixP->fx_size,
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cd->insn_chunk_bitsize / 8,
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signed_p,
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length, fixP->fx_size,
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cd->insn_chunk_bitsize / 8,
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signed_p,
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! (fixP->fx_cgen.msb_field_p));
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}
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#endif
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