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Eliminate UNOP_MEMVAL_TLS 

Since minsym references now go via OP_VAR_MSYM_VALUE, UNOP_MEMVAL_TLS
is no longer used anywhere.

gdb/ChangeLog:
2017-09-04  Pedro Alves  <palves@redhat.com>

	* eval.c (evaluate_subexp_standard): Remove UNOP_MEMVAL_TLS
	handling.
	* expprint.c (print_subexp_standard, dump_subexp_body_standard):
	Ditto.
	* parse.c (operator_length_standard, operator_check_standard):
	Ditto.
	* std-operator.def (UNOP_MEMVAL_TLS): Delete.
This commit is contained in:
Pedro Alves 2017-09-04 20:21:15 +01:00
parent 46a4882b3c
commit dd5901a6a5
5 changed files with 10 additions and 55 deletions
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10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
2017-09-04 Pedro Alves <palves@redhat.com>
* eval.c (evaluate_subexp_standard): Remove UNOP_MEMVAL_TLS
handling.
* expprint.c (print_subexp_standard, dump_subexp_body_standard):
Ditto.
* parse.c (operator_length_standard, operator_check_standard):
Ditto.
* std-operator.def (UNOP_MEMVAL_TLS): Delete.
2017-09-04 Pedro Alves <palves@redhat.com>
* ax-gdb.c: Include "typeprint.h".

16
gdb/eval.c
View File

@ -2655,22 +2655,6 @@ evaluate_subexp_standard (struct type *expect_type,
else
return value_at_lazy (type, value_as_address (arg1));
case UNOP_MEMVAL_TLS:
(*pos) += 3;
arg1 = evaluate_subexp (expect_type, exp, pos, noside);
if (noside == EVAL_SKIP)
return eval_skip_value (exp);
if (noside == EVAL_AVOID_SIDE_EFFECTS)
return value_zero (exp->elts[pc + 2].type, lval_memory);
else
{
CORE_ADDR tls_addr;
tls_addr = target_translate_tls_address (exp->elts[pc + 1].objfile,
value_as_address (arg1));
return value_at_lazy (exp->elts[pc + 2].type, tls_addr);
}
case UNOP_PREINCREMENT:
arg1 = evaluate_subexp (expect_type, exp, pos, noside);
if (noside == EVAL_SKIP || noside == EVAL_AVOID_SIDE_EFFECTS)

22
gdb/expprint.c
View File

@ -478,18 +478,6 @@ print_subexp_standard (struct expression *exp, int *pos,
fputs_filtered (")", stream);
return;
case UNOP_MEMVAL_TLS:
(*pos) += 3;
if ((int) prec > (int) PREC_PREFIX)
fputs_filtered ("(", stream);
fputs_filtered ("{", stream);
type_print (exp->elts[pc + 2].type, "", stream, 0);
fputs_filtered ("} ", stream);
print_subexp (exp, pos, stream, PREC_PREFIX);
if ((int) prec > (int) PREC_PREFIX)
fputs_filtered (")", stream);
return;
case BINOP_ASSIGN_MODIFY:
opcode = exp->elts[pc + 1].opcode;
(*pos) += 2;
@ -961,16 +949,6 @@ dump_subexp_body_standard (struct expression *exp,
fprintf_filtered (stream, ")");
elt = dump_subexp (exp, stream, elt + 2);
break;
case UNOP_MEMVAL_TLS:
fprintf_filtered (stream, "TLS type @");
gdb_print_host_address (exp->elts[elt + 1].type, stream);
fprintf_filtered (stream, " (__thread /* \"%s\" */ ",
(exp->elts[elt].objfile == NULL ? "(null)"
: objfile_name (exp->elts[elt].objfile)));
type_print (exp->elts[elt + 1].type, NULL, stream, 0);
fprintf_filtered (stream, ")");
elt = dump_subexp (exp, stream, elt + 3);
break;
case OP_TYPE:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);

10
gdb/parse.c
View File

@ -950,11 +950,6 @@ operator_length_standard (const struct expression *expr, int endpos,
args = 1;
break;
case UNOP_MEMVAL_TLS:
oplen = 4;
args = 1;
break;
case UNOP_ABS:
case UNOP_CAP:
case UNOP_CHR:
@ -1833,11 +1828,6 @@ operator_check_standard (struct expression *exp, int pos,
}
break;
case UNOP_MEMVAL_TLS:
objfile = elts[pos + 1].objfile;
type = elts[pos + 2].type;
break;
case OP_VAR_VALUE:
{
const struct block *const block = elts[pos + 1].block;

7
gdb/std-operator.def
View File

@ -218,13 +218,6 @@ OP (UNOP_REINTERPRET_CAST)
following subexpression. */
OP (UNOP_MEMVAL)
/* UNOP_MEMVAL_TLS is followed by a `struct objfile' pointer in the next
exp_element and a type pointer in the following exp_element.
With another UNOP_MEMVAL_TLS at the end, this makes four exp_elements.
It casts the contents of the word offsetted by the value of the
following subexpression from the TLS specified by `struct objfile'. */
OP (UNOP_MEMVAL_TLS)
/* Like UNOP_MEMVAL, but the type is supplied as a subexpression. */
OP (UNOP_MEMVAL_TYPE)