/* For enum target_signal. */
#include "target.h"
-/* Structure in which to save the status of the inferior. Save
+/* Structure in which to save the status of the inferior. Create/Save
through "save_inferior_status", restore through
"restore_inferior_status".
+
This pair of routines should be called around any transfer of
control to the inferior which you don't want showing up in your
control variables. */
-struct inferior_status
- {
- enum target_signal stop_signal;
- CORE_ADDR stop_pc;
- bpstat stop_bpstat;
- int stop_step;
- int stop_stack_dummy;
- int stopped_by_random_signal;
- int trap_expected;
- CORE_ADDR step_range_start;
- CORE_ADDR step_range_end;
- CORE_ADDR step_frame_address;
- int step_over_calls;
- CORE_ADDR step_resume_break_address;
- int stop_after_trap;
- int stop_soon_quietly;
- CORE_ADDR selected_frame_address;
- char stop_registers[REGISTER_BYTES];
-
- /* These are here because if call_function_by_hand has written some
- registers and then decides to call error(), we better not have changed
- any registers. */
- char registers[REGISTER_BYTES];
-
- int selected_level;
- int breakpoint_proceeded;
- int restore_stack_info;
- int proceed_to_finish;
- };
+#ifdef __STDC__
+struct inferior_status;
+#endif
+
+extern struct inferior_status *save_inferior_status PARAMS ((int));
+
+extern void restore_inferior_status PARAMS ((struct inferior_status *));
+
+extern void discard_inferior_status PARAMS ((struct inferior_status *));
+
+extern void write_inferior_status_register PARAMS ((struct inferior_status *inf_status, int regno, LONGEST val));
/* This macro gives the number of registers actually in use by the
inferior. This may be less than the total number of registers,
#define ARCH_NUM_REGS NUM_REGS
#endif
-extern void save_inferior_status PARAMS ((struct inferior_status *, int));
-
-extern void restore_inferior_status PARAMS ((struct inferior_status *));
-
extern void set_sigint_trap PARAMS ((void));
extern void clear_sigint_trap PARAMS ((void));
extern struct environ *inferior_environ;
-/* Character array containing an image of the inferior programs' registers. */
+/* Character array containing an image of the inferior programs'
+ registers. */
-extern char registers[];
+extern char *registers;
-/* Array of validity bits (one per register). Nonzero at position XXX_REGNUM
- means that `registers' contains a valid copy of inferior register XXX.
- -1 if register value is not available. */
+/* Character array containing the current state of each register
+ (unavailable<0, valid=0, invalid>0). */
-extern SIGNED char register_valid[NUM_REGS];
+extern signed char *register_valid;
extern void clear_proceed_status PARAMS ((void));
extern void terminal_ours PARAMS ((void));
-extern int run_stack_dummy PARAMS ((CORE_ADDR, char[REGISTER_BYTES]));
+extern int run_stack_dummy PARAMS ((CORE_ADDR, char*));
extern CORE_ADDR read_pc PARAMS ((void));
extern CORE_ADDR read_pc_pid PARAMS ((int));
+extern CORE_ADDR generic_target_read_pc PARAMS ((int));
+
extern void write_pc PARAMS ((CORE_ADDR));
extern void write_pc_pid PARAMS ((CORE_ADDR, int));
+extern void generic_target_write_pc PARAMS ((CORE_ADDR, int));
+
extern CORE_ADDR read_sp PARAMS ((void));
+extern CORE_ADDR generic_target_read_sp PARAMS ((void));
+
extern void write_sp PARAMS ((CORE_ADDR));
+extern void generic_target_write_sp PARAMS ((CORE_ADDR));
+
extern CORE_ADDR read_fp PARAMS ((void));
+extern CORE_ADDR generic_target_read_fp PARAMS ((void));
+
extern void write_fp PARAMS ((CORE_ADDR));
+extern void generic_target_write_fp PARAMS ((CORE_ADDR));
+
extern void wait_for_inferior PARAMS ((void));
extern void init_wait_for_inferior PARAMS ((void));
extern void detach PARAMS ((int));
+/* PTRACE method of waiting for inferior process. */
int ptrace_wait PARAMS ((int, int *));
extern void child_resume PARAMS ((int, int, enum target_signal));
Thus this contains the return value from the called function (assuming
values are returned in a register). */
-extern char stop_registers[REGISTER_BYTES];
+extern char *stop_registers;
/* Nonzero if the child process in inferior_pid was attached rather
than forked. */
#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. */
-/* Are we in a call dummy? The code below which allows DECR_PC_AFTER_BREAK
- below is for infrun.c, which may give the macro a pc without that
- subtracted out. */
-#if !defined (PC_IN_CALL_DUMMY)
-#if CALL_DUMMY_LOCATION == BEFORE_TEXT_END
-extern CORE_ADDR text_end;
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
- ((pc) >= text_end - CALL_DUMMY_LENGTH \
- && (pc) <= text_end + DECR_PC_AFTER_BREAK)
+#if !defined (CALL_DUMMY_ADDRESS)
+#define CALL_DUMMY_ADDRESS() (abort (), 0) /* anything to abort GDB */
+#endif
+#if !defined (CALL_DUMMY_START_OFFSET)
+#define CALL_DUMMY_START_OFFSET (abort (), 0) /* anything to abort GDB */
+#endif
+#if !defined (CALL_DUMMY_BREAKPOINT_OFFSET)
+#define CALL_DUMMY_BREAKPOINT_OFFSET_P (0)
+#define CALL_DUMMY_BREAKPOINT_OFFSET (abort (), 0) /* anything to abort GDB */
+#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 (abort (), 0) /* anything to abort GDB */
+#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 (abort (), 0)
+#endif
+#if !defined (CALL_DUMMY_STACK_ADJUST_P)
+#define CALL_DUMMY_STACK_ADJUST_P (0)
+#endif
+
+#if !defined (CALL_DUMMY_P)
+#if defined (CALL_DUMMY)
+#define CALL_DUMMY_P 1
+#else
+#define CALL_DUMMY_P 0
+#endif
+#endif
+
+#if !defined (CALL_DUMMY_WORDS)
+#if defined (CALL_DUMMY)
+extern LONGEST call_dummy_words[];
+#define CALL_DUMMY_WORDS (call_dummy_words)
+#else
+#define CALL_DUMMY_WORDS (abort (), (void*) 0) /* anything to abort GDB */
+#endif
+#endif
+
+#if !defined (SIZEOF_CALL_DUMMY_WORDS)
+#if defined (CALL_DUMMY)
+extern int sizeof_call_dummy_words;
+#define SIZEOF_CALL_DUMMY_WORDS (sizeof_call_dummy_words)
+#else
+#define SIZEOF_CALL_DUMMY_WORDS (abort (), 0) /* anything to abort GDB */
+#endif
+#endif
+
+#if !defined PUSH_DUMMY_FRAME
+#define PUSH_DUMMY_FRAME (abort ())
+#endif
+
+#if !defined FIX_CALL_DUMMY
+#define FIX_CALL_DUMMY(a1,a2,a3,a4,a5,a6,a7) (abort ())
+#endif
+
+#if !defined STORE_STRUCT_RETURN
+#define STORE_STRUCT_RETURN(a1,a2) (abort ())
+#endif
+
+
+/* Are we in a call dummy? */
+
+extern int pc_in_call_dummy_before_text_end PARAMS ((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) pc_in_call_dummy_before_text_end (pc, sp, frame_address)
#endif /* Before text_end. */
+#endif
+
+extern int pc_in_call_dummy_after_text_end PARAMS ((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) pc_in_call_dummy_after_text_end (pc, sp, frame_address)
+#endif
+#endif
-#if CALL_DUMMY_LOCATION == AFTER_TEXT_END
-extern CORE_ADDR text_end;
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
- ((pc) >= text_end \
- && (pc) <= text_end + CALL_DUMMY_LENGTH + DECR_PC_AFTER_BREAK)
-#endif /* After text_end. */
-
-#if CALL_DUMMY_LOCATION == ON_STACK
-/* Is the PC in a call dummy? SP and FRAME_ADDRESS are the bottom and
- top of the stack frame which we are checking, where "bottom" and
- "top" refer to some section of memory which contains the code for
- the call dummy. Calls to this macro assume that the contents of
- SP_REGNUM and FP_REGNUM (or the saved values thereof), respectively,
- are the things to pass.
-
- This won't work on the 29k, where SP_REGNUM and FP_REGNUM don't
- have that meaning, but the 29k doesn't use ON_STACK. This could be
- fixed by generalizing this scheme, perhaps by passing in a frame
- and adding a few fields, at least on machines which need them for
- PC_IN_CALL_DUMMY.
-
- Something simpler, like checking for the stack segment, doesn't work,
- since various programs (threads implementations, gcc nested function
- stubs, etc) may either allocate stack frames in another segment, or
- allocate other kinds of code on the stack. */
-
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
- (INNER_THAN ((sp), (pc)) && (frame_address != 0) && INNER_THAN ((pc), (frame_address)))
-#endif /* On stack. */
-
-#if CALL_DUMMY_LOCATION == AT_ENTRY_POINT
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
- ((pc) >= CALL_DUMMY_ADDRESS () \
- && (pc) <= (CALL_DUMMY_ADDRESS () + DECR_PC_AFTER_BREAK))
-#endif /* At entry point. */
-#endif /* No PC_IN_CALL_DUMMY. */
+extern int pc_in_call_dummy_on_stack PARAMS ((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) pc_in_call_dummy_on_stack (pc, sp, frame_address)
+#endif
+#endif
+
+extern int pc_in_call_dummy_at_entry_point PARAMS ((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) 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
projects / deliverable / binutils-gdb.git / blobdiff