diff options
Diffstat (limited to 'gdb/inferior.h')
| -rw-r--r-- | gdb/inferior.h | 200 |
1 files changed, 113 insertions, 87 deletions
diff --git a/gdb/inferior.h b/gdb/inferior.h index fa59c2a..02d942e 100644 --- a/gdb/inferior.h +++ b/gdb/inferior.h @@ -27,42 +27,25 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* 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, @@ -72,10 +55,6 @@ struct inferior_status #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)); @@ -117,15 +96,15 @@ extern int inferior_ignoring_leading_exec_events; 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)); @@ -137,7 +116,7 @@ extern void generic_mourn_inferior 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)); @@ -202,6 +181,7 @@ extern int attach PARAMS ((int)); 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)); @@ -340,7 +320,7 @@ extern int proceed_to_finish; 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. */ @@ -376,57 +356,103 @@ extern int attach_flag; #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 !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. */ -#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_after_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address)); +#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 + +extern int pc_in_call_dummy_on_stack PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address)); +#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 + +extern int pc_in_call_dummy_at_entry_point PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address)); +#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 /* 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 |