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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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23
gdb/gdbthread.h
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@@ -28,6 +28,7 @@ struct symtab;
#include "ui-out.h"
#include "inferior.h"
#include "btrace.h"
#include "common/vec.h"
/* Frontend view of the thread state. Possible extensions: stepping,
finishing, until(ling),... */
@@ -152,6 +153,10 @@ struct thread_suspend_state
enum gdb_signal stop_signal;
};
typedef struct value *value_ptr;
DEF_VEC_P (value_ptr);
typedef VEC (value_ptr) value_vec;
struct thread_info
{
struct thread_info *next;
@@ -264,6 +269,14 @@ struct thread_info
/* Branch trace information for this thread. */
struct btrace_thread_info btrace;
/* Flag which indicates that the stack temporaries should be stored while
evaluating expressions. */
int stack_temporaries_enabled;
/* Values that are stored as temporaries on stack while evaluating
expressions. */
value_vec *stack_temporaries;
};
/* Create an empty thread list, or empty the existing one. */
@@ -465,6 +478,16 @@ extern void prune_threads (void);
int pc_in_thread_step_range (CORE_ADDR pc, struct thread_info *thread);
extern struct cleanup *enable_thread_stack_temporaries (ptid_t ptid);
extern int thread_stack_temporaries_enabled_p (ptid_t ptid);
extern void push_thread_stack_temporary (ptid_t ptid, struct value *v);
extern struct value *get_last_thread_stack_temporary (ptid_t);
extern int value_in_thread_stack_temporaries (struct value *, ptid_t);
extern struct thread_info *thread_list;
#endif /* GDBTHREAD_H */