From ed12ef62ccad3b86e25ec3b042d8bf7f15c75909 Mon Sep 17 00:00:00 2001 From: Jan Kratochvil Date: Wed, 14 May 2014 14:16:22 -0600 Subject: [PATCH] introduce call_function_by_hand_dummy This provides a variant of call_function_by_hand that allows the dummy frame destructor to be set. This is used by the compiler code to manage some resources when calling the gdb-generated inferior function. gdb/ChangeLog 2014-12-12 Jan Kratochvil * infcall.h (call_function_by_hand_dummy): Declare. * infcall.c (call_function_by_hand): Use call_function_by_hand_dummy. (call_function_by_hand_dummy): Rename from call_function_by_hand. Add arguments. Register a destructor. --- gdb/ChangeLog | 8 ++++++++ gdb/infcall.c | 16 +++++++++++++++- gdb/infcall.h | 11 +++++++++++ 3 files changed, 34 insertions(+), 1 deletion(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 21a292f3a4..df93995035 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2014-12-12 Jan Kratochvil + + * infcall.h (call_function_by_hand_dummy): Declare. + * infcall.c (call_function_by_hand): Use + call_function_by_hand_dummy. + (call_function_by_hand_dummy): Rename from call_function_by_hand. + Add arguments. Register a destructor. + 2014-12-12 Tom Tromey Jan Kratochvil diff --git a/gdb/infcall.c b/gdb/infcall.c index 25a7af4ac9..b5a9ae190a 100644 --- a/gdb/infcall.c +++ b/gdb/infcall.c @@ -456,6 +456,14 @@ cleanup_delete_std_terminate_breakpoint (void *ignore) delete_std_terminate_breakpoint (); } +/* See infcall.h. */ + +struct value * +call_function_by_hand (struct value *function, int nargs, struct value **args) +{ + return call_function_by_hand_dummy (function, nargs, args, NULL, NULL); +} + /* All this stuff with a dummy frame may seem unnecessarily complicated (why not just save registers in GDB?). The purpose of pushing a dummy frame which looks just like a real frame is so that if you call a @@ -475,7 +483,10 @@ cleanup_delete_std_terminate_breakpoint (void *ignore) ARGS is modified to contain coerced values. */ struct value * -call_function_by_hand (struct value *function, int nargs, struct value **args) +call_function_by_hand_dummy (struct value *function, + int nargs, struct value **args, + call_function_by_hand_dummy_dtor_ftype *dummy_dtor, + void *dummy_dtor_data) { CORE_ADDR sp; struct type *values_type, *target_values_type; @@ -874,6 +885,9 @@ call_function_by_hand (struct value *function, int nargs, struct value **args) caller (and identify the dummy-frame) onto the dummy-frame stack. */ dummy_frame_push (caller_state, &dummy_id, inferior_ptid); + if (dummy_dtor != NULL) + register_dummy_frame_dtor (dummy_id, inferior_ptid, + dummy_dtor, dummy_dtor_data); /* Discard both inf_status and caller_state cleanups. From this point on we explicitly restore the associated state diff --git a/gdb/infcall.h b/gdb/infcall.h index c6dcdc3343..f895e335ff 100644 --- a/gdb/infcall.h +++ b/gdb/infcall.h @@ -38,4 +38,15 @@ extern CORE_ADDR find_function_addr (struct value *function, extern struct value *call_function_by_hand (struct value *function, int nargs, struct value **args); +/* Similar to call_function_by_hand and additional call + register_dummy_frame_dtor with DUMMY_DTOR and DUMMY_DTOR_DATA for the + created inferior call dummy frame. */ + +typedef void (call_function_by_hand_dummy_dtor_ftype) (void *data); +extern struct value * + call_function_by_hand_dummy (struct value *function, int nargs, + struct value **args, + call_function_by_hand_dummy_dtor_ftype *dummy_dtor, + void *dummy_dtor_data); + #endif -- 2.34.1