From 6c659fc2c7cd2da6d2b9a3d7c38597ad3821832a Mon Sep 17 00:00:00 2001 From: Siva Chandra Date: Tue, 11 Nov 2014 05:43:03 -0800 Subject: Enable chained function calls in C++ expressions. 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". --- gdb/gdbthread.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'gdb/gdbthread.h') diff --git a/gdb/gdbthread.h b/gdb/gdbthread.h index 4fd5f69..c7e258f 100644 --- a/gdb/gdbthread.h +++ b/gdb/gdbthread.h @@ -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 */ -- cgit v1.1