/* Variables that describe the inferior process running under GDB:
Where it is, why it stopped, and how to step it.
- Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+
+ Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
This file is part of GDB.
#if !defined (INFERIOR_H)
#define INFERIOR_H 1
+struct target_waitstatus;
+struct frame_info;
+struct ui_file;
+struct type;
struct gdbarch;
struct regcache;
/* For enum target_signal. */
#include "target.h"
+/* For struct frame_id. */
+#include "frame.h"
+
/* Structure in which to save the status of the inferior. Create/Save
through "save_inferior_status", restore through
"restore_inferior_status".
extern CORE_ADDR generic_target_read_sp (void);
-extern void write_sp (CORE_ADDR);
-
extern void generic_target_write_sp (CORE_ADDR);
extern CORE_ADDR read_fp (void);
extern CORE_ADDR generic_target_read_fp (void);
-extern CORE_ADDR unsigned_pointer_to_address (struct type *type, void *buf);
+extern CORE_ADDR unsigned_pointer_to_address (struct type *type, const void *buf);
extern void unsigned_address_to_pointer (struct type *type, void *buf,
CORE_ADDR addr);
-extern CORE_ADDR signed_pointer_to_address (struct type *type, void *buf);
+extern CORE_ADDR signed_pointer_to_address (struct type *type,
+ const void *buf);
extern void address_to_signed_pointer (struct type *type, void *buf,
CORE_ADDR addr);
extern int attach (int);
-#if !defined(REQUIRE_ATTACH)
-#define REQUIRE_ATTACH attach
-#endif
-
-#if !defined(REQUIRE_DETACH)
-#define REQUIRE_DETACH(pid,siggnal) detach (siggnal)
-#endif
-
extern void detach (int);
/* PTRACE method of waiting for inferior process. */
extern void get_last_target_status(ptid_t *ptid,
struct target_waitstatus *status);
+extern void follow_inferior_reset_breakpoints (void);
+
/* From infcmd.c */
extern void tty_command (char *, int);
This is how we know when we step into a subroutine call,
and how to set the frame for the breakpoint used to step out. */
-extern CORE_ADDR step_frame_address;
+extern struct frame_id step_frame_id;
/* Our notion of the current stack pointer. */
extern int step_multi;
-/* Nonzero means expecting a trap and caller will handle it themselves.
- It is used after attach, due to attaching to a process;
- when running in the shell before the child program has been exec'd;
- and when running some kinds of remote stuff (FIXME?). */
+/* Nonzero means expecting a trap and caller will handle it
+ themselves. It is used when running in the shell before the child
+ program has been exec'd; and when running some kinds of remote
+ stuff (FIXME?). */
+
+/* It is also used after attach, due to attaching to a process. This
+ is a bit trickier. When doing an attach, the kernel stops the
+ debuggee with a SIGSTOP. On newer GNU/Linux kernels (>= 2.5.61)
+ the handling of SIGSTOP for a ptraced process has changed. Earlier
+ versions of the kernel would ignore these SIGSTOPs, while now
+ SIGSTOP is treated like any other signal, i.e. it is not muffled.
+
+ If the gdb user does a 'continue' after the 'attach', gdb passes
+ the global variable stop_signal (which stores the signal from the
+ attach, SIGSTOP) to the ptrace(PTRACE_CONT,...) call. This is
+ problematic, because the kernel doesn't ignore such SIGSTOP
+ now. I.e. it is reported back to gdb, which in turn presents it
+ back to the user.
+
+ To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows
+ gdb to clear the value of stop_signal after the attach, so that it
+ is not passed back down to the kernel. */
+
+enum stop_kind
+ {
+ NO_STOP_QUIETLY = 0,
+ STOP_QUIETLY,
+ STOP_QUIETLY_NO_SIGSTOP
+ };
-extern int stop_soon_quietly;
+extern enum stop_kind stop_soon;
/* Nonzero if proceed is being used for a "finish" command or a similar
situation when stop_registers should be saved. */
\f
/* Possible values for CALL_DUMMY_LOCATION. */
#define ON_STACK 1
-#define BEFORE_TEXT_END 2
-#define AFTER_TEXT_END 3
#define AT_ENTRY_POINT 4
-#if !defined (USE_GENERIC_DUMMY_FRAMES)
-#define USE_GENERIC_DUMMY_FRAMES 0
-#endif
-
-#if !defined (CALL_DUMMY_LOCATION)
-#define CALL_DUMMY_LOCATION ON_STACK
-#endif /* No CALL_DUMMY_LOCATION. */
-
-#if !defined (CALL_DUMMY_ADDRESS)
-#define CALL_DUMMY_ADDRESS() (internal_error (__FILE__, __LINE__, "CALL_DUMMY_ADDRESS"), 0)
-#endif
-#if !defined (CALL_DUMMY_START_OFFSET)
-#define CALL_DUMMY_START_OFFSET (internal_error (__FILE__, __LINE__, "CALL_DUMMY_START_OFFSET"), 0)
-#endif
-#if !defined (CALL_DUMMY_BREAKPOINT_OFFSET)
-#define CALL_DUMMY_BREAKPOINT_OFFSET_P (0)
-#define CALL_DUMMY_BREAKPOINT_OFFSET (internal_error (__FILE__, __LINE__, "CALL_DUMMY_BREAKPOINT_OFFSET"), 0)
-#endif
-#if !defined CALL_DUMMY_BREAKPOINT_OFFSET_P
-#define CALL_DUMMY_BREAKPOINT_OFFSET_P (1)
-#endif
-#if !defined (CALL_DUMMY_LENGTH)
-#define CALL_DUMMY_LENGTH (internal_error (__FILE__, __LINE__, "CALL_DUMMY_LENGTH"), 0)
-#endif
-
-#if defined (CALL_DUMMY_STACK_ADJUST)
-#if !defined (CALL_DUMMY_STACK_ADJUST_P)
-#define CALL_DUMMY_STACK_ADJUST_P (1)
-#endif
-#endif
-#if !defined (CALL_DUMMY_STACK_ADJUST)
-#define CALL_DUMMY_STACK_ADJUST (internal_error (__FILE__, __LINE__, "CALL_DUMMY_STACK_ADJUST"), 0)
-#endif
-#if !defined (CALL_DUMMY_STACK_ADJUST_P)
-#define CALL_DUMMY_STACK_ADJUST_P (0)
-#endif
-
/* FIXME: cagney/2000-04-17: gdbarch should manage this. The default
shouldn't be necessary. */
-#if !defined (CALL_DUMMY_P)
-#if defined (CALL_DUMMY)
-#define CALL_DUMMY_P 1
-#else
-#define CALL_DUMMY_P 0
-#endif
-#endif
-
#if !defined PUSH_DUMMY_FRAME
#define PUSH_DUMMY_FRAME (internal_error (__FILE__, __LINE__, "PUSH_DUMMY_FRAME"), 0)
#endif
-#if !defined FIX_CALL_DUMMY
-#define FIX_CALL_DUMMY(a1,a2,a3,a4,a5,a6,a7) (internal_error (__FILE__, __LINE__, "FIX_CALL_DUMMY"), 0)
-#endif
-
#if !defined STORE_STRUCT_RETURN
#define STORE_STRUCT_RETURN(a1,a2) (internal_error (__FILE__, __LINE__, "STORE_STRUCT_RETURN"), 0)
#endif
/* Are we in a call dummy? */
-/* NOTE: cagney/2002-11-24: Targets need to both switch to generic
- dummy frames, and use generic_pc_in_call_dummy(). The generic
- version should be able to handle all cases since that code works by
- saving the address of the dummy's breakpoint (where ever it is). */
-
-extern int deprecated_pc_in_call_dummy_before_text_end (CORE_ADDR pc,
- CORE_ADDR sp,
- CORE_ADDR frame_address);
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == BEFORE_TEXT_END
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) deprecated_pc_in_call_dummy_before_text_end (pc, sp, frame_address)
-#endif /* Before text_end. */
-#endif
-
-/* NOTE: cagney/2002-11-24: Targets need to both switch to generic
- dummy frames, and use generic_pc_in_call_dummy(). The generic
- version should be able to handle all cases since that code works by
- saving the address of the dummy's breakpoint (where ever it is). */
-
-extern int deprecated_pc_in_call_dummy_after_text_end (CORE_ADDR pc,
- CORE_ADDR sp,
- CORE_ADDR frame_address);
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AFTER_TEXT_END
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) deprecated_pc_in_call_dummy_after_text_end (pc, sp, frame_address)
-#endif
-#endif
-
/* NOTE: cagney/2002-11-24: Targets need to both switch to generic
dummy frames, and use generic_pc_in_call_dummy(). The generic
version should be able to handle all cases since that code works by
extern int deprecated_pc_in_call_dummy_on_stack (CORE_ADDR pc,
CORE_ADDR sp,
CORE_ADDR frame_address);
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == ON_STACK
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) deprecated_pc_in_call_dummy_on_stack (pc, sp, frame_address)
-#endif
-#endif
/* NOTE: cagney/2002-11-24: Targets need to both switch to generic
dummy frames, and use generic_pc_in_call_dummy(). The generic
extern int deprecated_pc_in_call_dummy_at_entry_point (CORE_ADDR pc,
CORE_ADDR sp,
CORE_ADDR frame_address);
-#if !GDB_MULTI_ARCH
-#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AT_ENTRY_POINT
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) deprecated_pc_in_call_dummy_at_entry_point (pc, sp, frame_address)
-#endif
-#endif
/* It's often not enough for our clients to know whether the PC is merely
somewhere within the call dummy. They may need to know whether the
*/
#if !defined(CALL_DUMMY_HAS_COMPLETED)
#define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \
- PC_IN_CALL_DUMMY((pc), (sp), (frame_address))
+ DEPRECATED_PC_IN_CALL_DUMMY((pc), (sp), (frame_address))
#endif
/* If STARTUP_WITH_SHELL is set, GDB's "run"
projects / binutils.git / blobdiff