-/* GDB-specific functions for operating on agent expressions
- Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+/* GDB-specific functions for operating on agent expressions.
+
+ Copyright 1998, 1999, 2000, 2001, 2003 Free Software Foundation,
+ Inc.
This file is part of GDB.
#include "target.h"
#include "ax.h"
#include "ax-gdb.h"
+#include "gdb_string.h"
+#include "block.h"
+#include "regcache.h"
/* To make sense of this file, you should read doc/agentexpr.texi.
Then look at the types and enums in ax-gdb.h. For the code itself,
{
/* Do we need to sign-extend this? */
if (!TYPE_UNSIGNED (type))
- ax_ext (ax, type->length * TARGET_CHAR_BIT);
+ ax_ext (ax, TYPE_LENGTH (type) * TARGET_CHAR_BIT);
}
static void
gen_extend (struct agent_expr *ax, struct type *type)
{
- int bits = type->length * TARGET_CHAR_BIT;
+ int bits = TYPE_LENGTH (type) * TARGET_CHAR_BIT;
/* I just had to. */
((TYPE_UNSIGNED (type) ? ax_zero_ext : ax_ext) (ax, bits));
}
ax_trace_quick (ax, TYPE_LENGTH (type));
}
- switch (type->code)
+ switch (TYPE_CODE (type))
{
case TYPE_CODE_PTR:
case TYPE_CODE_ENUM:
case TYPE_CODE_CHAR:
/* It's a scalar value, so we know how to dereference it. How
many bytes long is it? */
- switch (type->length)
+ switch (TYPE_LENGTH (type))
{
case 8 / TARGET_CHAR_BIT:
ax_simple (ax, aop_ref8);
case LOC_TYPEDEF:
error ("Cannot compute value of typedef `%s'.",
- SYMBOL_SOURCE_NAME (var));
+ SYMBOL_PRINT_NAME (var));
break;
case LOC_BLOCK:
case LOC_UNRESOLVED:
{
struct minimal_symbol *msym
- = lookup_minimal_symbol (SYMBOL_NAME (var), NULL, NULL);
+ = lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (var), NULL, NULL);
if (!msym)
- error ("Couldn't resolve symbol `%s'.", SYMBOL_SOURCE_NAME (var));
+ error ("Couldn't resolve symbol `%s'.", SYMBOL_PRINT_NAME (var));
/* Push the address of the variable. */
ax_const_l (ax, SYMBOL_VALUE_ADDRESS (msym));
}
break;
+ case LOC_COMPUTED:
+ case LOC_COMPUTED_ARG:
+ (*SYMBOL_LOCATION_FUNCS (var)->tracepoint_var_ref) (var, ax, value);
+ break;
+
case LOC_OPTIMIZED_OUT:
error ("The variable `%s' has been optimized out.",
- SYMBOL_SOURCE_NAME (var));
+ SYMBOL_PRINT_NAME (var));
break;
default:
error ("Cannot find value of botched symbol `%s'.",
- SYMBOL_SOURCE_NAME (var));
+ SYMBOL_PRINT_NAME (var));
break;
}
}
the stack. Should we tweak the type? */
/* Some types require special handling. */
- switch (value->type->code)
+ switch (TYPE_CODE (value->type))
{
/* Functions get converted to a pointer to the function. */
case TYPE_CODE_FUNC:
/* Dereference typedefs. */
type = check_typedef (type);
- switch (type->code)
+ switch (TYPE_CODE (type))
{
case TYPE_CODE_PTR:
/* It's implementation-defined, and I'll bet this is what GCC
{
struct type *element = TYPE_TARGET_TYPE (type);
- if (element->length != 1)
+ if (TYPE_LENGTH (element) != 1)
{
- ax_const_l (ax, element->length);
+ ax_const_l (ax, TYPE_LENGTH (element));
ax_simple (ax, op);
}
}
struct axs_value *value1, struct axs_value *value2, char *name)
{
/* Is it INT+PTR? */
- if (value1->type->code == TYPE_CODE_INT
- && value2->type->code == TYPE_CODE_PTR)
+ if (TYPE_CODE (value1->type) == TYPE_CODE_INT
+ && TYPE_CODE (value2->type) == TYPE_CODE_PTR)
{
/* Swap the values and proceed normally. */
ax_simple (ax, aop_swap);
}
/* Is it PTR+INT? */
- else if (value1->type->code == TYPE_CODE_PTR
- && value2->type->code == TYPE_CODE_INT)
+ else if (TYPE_CODE (value1->type) == TYPE_CODE_PTR
+ && TYPE_CODE (value2->type) == TYPE_CODE_INT)
{
gen_scale (ax, aop_mul, value1->type);
ax_simple (ax, aop_add);
/* Must be number + number; the usual binary conversions will have
brought them both to the same width. */
- else if (value1->type->code == TYPE_CODE_INT
- && value2->type->code == TYPE_CODE_INT)
+ else if (TYPE_CODE (value1->type) == TYPE_CODE_INT
+ && TYPE_CODE (value2->type) == TYPE_CODE_INT)
{
ax_simple (ax, aop_add);
gen_extend (ax, value1->type); /* Catch overflow. */
gen_sub (struct agent_expr *ax, struct axs_value *value,
struct axs_value *value1, struct axs_value *value2)
{
- if (value1->type->code == TYPE_CODE_PTR)
+ if (TYPE_CODE (value1->type) == TYPE_CODE_PTR)
{
/* Is it PTR - INT? */
- if (value2->type->code == TYPE_CODE_INT)
+ if (TYPE_CODE (value2->type) == TYPE_CODE_INT)
{
gen_scale (ax, aop_mul, value1->type);
ax_simple (ax, aop_sub);
/* Is it PTR - PTR? Strictly speaking, the types ought to
match, but this is what the normal GDB expression evaluator
tests for. */
- else if (value2->type->code == TYPE_CODE_PTR
+ else if (TYPE_CODE (value2->type) == TYPE_CODE_PTR
&& (TYPE_LENGTH (TYPE_TARGET_TYPE (value1->type))
== TYPE_LENGTH (TYPE_TARGET_TYPE (value2->type))))
{
}
/* Must be number + number. */
- else if (value1->type->code == TYPE_CODE_INT
- && value2->type->code == TYPE_CODE_INT)
+ else if (TYPE_CODE (value1->type) == TYPE_CODE_INT
+ && TYPE_CODE (value2->type) == TYPE_CODE_INT)
{
ax_simple (ax, aop_sub);
gen_extend (ax, value1->type); /* Catch overflow. */
enum agent_op op_unsigned, int may_carry, char *name)
{
/* We only handle INT op INT. */
- if ((value1->type->code != TYPE_CODE_INT)
- || (value2->type->code != TYPE_CODE_INT))
+ if ((TYPE_CODE (value1->type) != TYPE_CODE_INT)
+ || (TYPE_CODE (value2->type) != TYPE_CODE_INT))
error ("Illegal combination of types in %s.", name);
ax_simple (ax,
{
/* The caller should check the type, because several operators use
this, and we don't know what error message to generate. */
- if (value->type->code != TYPE_CODE_PTR)
+ if (TYPE_CODE (value->type) != TYPE_CODE_PTR)
internal_error (__FILE__, __LINE__,
"gen_deref: expected a pointer");
T" to "T", and mark the value as an lvalue in memory. Leave it
to the consumer to actually dereference it. */
value->type = check_typedef (TYPE_TARGET_TYPE (value->type));
- value->kind = ((value->type->code == TYPE_CODE_FUNC)
+ value->kind = ((TYPE_CODE (value->type) == TYPE_CODE_FUNC)
? axs_rvalue : axs_lvalue_memory);
}
/* Special case for taking the address of a function. The ANSI
standard describes this as a special case, too, so this
arrangement is not without motivation. */
- if (value->type->code == TYPE_CODE_FUNC)
+ if (TYPE_CODE (value->type) == TYPE_CODE_FUNC)
/* The value's already an rvalue on the stack, so we just need to
change the type. */
value->type = lookup_pointer_type (value->type);
{
char *this_name = TYPE_FIELD_NAME (type, i);
- if (this_name && STREQ (name, this_name))
+ if (this_name && strcmp (name, this_name) == 0)
return i;
if (this_name[0] == '\0')
}
error ("Couldn't find member named `%s' in struct/union `%s'",
- name, type->tag_name);
+ name, TYPE_TAG_NAME (type));
return 0;
}
/* Follow pointers until we reach a non-pointer. These aren't the C
semantics, but they're what the normal GDB evaluator does, so we
should at least be consistent. */
- while (value->type->code == TYPE_CODE_PTR)
+ while (TYPE_CODE (value->type) == TYPE_CODE_PTR)
{
gen_usual_unary (ax, value);
gen_deref (ax, value);
if (!v)
error ("Right operand of `@' must be a constant, in agent expressions.");
- if (v->type->code != TYPE_CODE_INT)
+ if (TYPE_CODE (v->type) != TYPE_CODE_INT)
error ("Right operand of `@' must be an integer.");
length = value_as_long (v);
if (length <= 0)
(*pc) += 3;
value->kind = axs_lvalue_register;
value->u.reg = reg;
- value->type = REGISTER_VIRTUAL_TYPE (reg);
+ value->type = register_type (current_gdbarch, reg);
}
break;
expr = parse_expression (exp);
old_chain = make_cleanup (free_current_contents, &expr);
- agent = gen_trace_for_expr (fi->pc, expr);
+ agent = gen_trace_for_expr (get_frame_pc (fi), expr);
make_cleanup_free_agent_expr (agent);
ax_print (gdb_stdout, agent);
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