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Enable chained function calls in C++ expressions.

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gdb/ChangeLog:

	* eval.c: Include gdbthread.h.
	(evaluate_subexp): Enable thread stack temporaries before
	evaluating a complete expression and clean them up after the
	evaluation is complete.
	* gdbthread.h: Include common/vec.h.
	(value_ptr): New typedef.
	(VEC (value_ptr)): New vector type.
	(value_vec): New typedef.
	(struct thread_info): Add new fields stack_temporaries_enabled
	and stack_temporaries.
	(enable_thread_stack_temporaries)
	(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
	(get_last_thread_stack_temporary)
	(value_in_thread_stack_temporaries): Declare.
	* gdbtypes.c (class_or_union_p): New function.
	* gdbtypes.h (class_or_union_p): Declare.
	* infcall.c (call_function_by_hand): Store return values of class
	type as	temporaries on stack.
	* thread.c (enable_thread_stack_temporaries): New function.
	(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
	(get_last_thread_stack_temporary): Likewise.
	(value_in_thread_stack_temporaries): Likewise.
	* value.c (value_force_lval): New function.
	* value.h (value_force_lval): Declare.

gdb/testsuite/ChangeLog:

	* gdb.cp/chained-calls.cc: New file.
	* gdb.cp/chained-calls.exp: New file.
	* gdb.cp/smartp.exp: Remove KFAIL for "p c2->inta".
This commit is contained in:
Siva Chandra
2014-11-11 05:43:03 -08:00
parent f4f855e84b
commit 6c659fc2c7
13 changed files with 523 additions and 24 deletions
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12
gdb/value.c
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@ -1724,6 +1724,18 @@ value_non_lval (struct value *arg)
return arg;
}
/* Write contents of V at ADDR and set its lval type to be LVAL_MEMORY. */
void
value_force_lval (struct value *v, CORE_ADDR addr)
{
gdb_assert (VALUE_LVAL (v) == not_lval);
write_memory (addr, value_contents_raw (v), TYPE_LENGTH (value_type (v)));
v->lval = lval_memory;
v->location.address = addr;
}
void
set_value_component_location (struct value *component,
const struct value *whole)