diff options
Diffstat (limited to 'gdb/tm-h8300.h')
| -rw-r--r-- | gdb/tm-h8300.h | 77 |
1 files changed, 57 insertions, 20 deletions
diff --git a/gdb/tm-h8300.h b/gdb/tm-h8300.h index 1409dcc..330576e 100644 --- a/gdb/tm-h8300.h +++ b/gdb/tm-h8300.h @@ -19,7 +19,31 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Contributed by Steve Chamberlain sac@cygnus.com */ -#define IEEE_FLOAT 1 + +#define UNSIGNED_SHORT(X) ((X) & 0xffff) + + +#define EXTRA_FRAME_INFO \ + struct frame_saved_regs *fsr; \ + CORE_ADDR from_pc; \ + CORE_ADDR args_pointer;\ + CORE_ADDR locals_pointer ; + + + +/* Zero the frame_saved_regs pointer when the frame is initialized, + so that FRAME_FIND_SAVED_REGS () will know to allocate and + initialize a frame_saved_regs struct the first time it is called. + Set the arg_pointer to -1, which is not valid; 0 and other values + indicate real, cached values. */ + +#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ + init_extra_frame_info (fromleaf, fi) + +extern void init_extra_frame_info (); + + +#define IEEE_FLOAT /* Define the bit, byte, and word ordering of the machine. */ #define TARGET_BYTE_ORDER BIG_ENDIAN @@ -46,7 +70,7 @@ extern CORE_ADDR h8300_skip_prologue (); some instructions. */ #define SAVED_PC_AFTER_CALL(frame) \ -read_memory_integer (read_register (SP_REGNUM), 2) +UNSIGNED_SHORT(read_memory_integer (read_register (SP_REGNUM), 2)) /* Stack grows downward. */ @@ -69,7 +93,7 @@ read_memory_integer (read_register (SP_REGNUM), 2) define this before including this file. */ -#define DECR_PC_AFTER_BREAK 2 +#define DECR_PC_AFTER_BREAK 0 /* Nonzero if instruction at PC is a return instruction. */ @@ -157,19 +181,15 @@ read_memory_integer (read_register (SP_REGNUM), 2) /* Store the address of the place in which to copy the structure the subroutine will return. This is called from call_function. */ -#define STORE_STRUCT_RETURN(ADDR, SP) \ - { write_register (0, (ADDR)); abort(); } +/*#define STORE_STRUCT_RETURN(ADDR, SP) \ + { write_register (0, (ADDR)); abort(); }*/ /* Extract from an array REGBUF containing the (raw) register state a function return value of type TYPE, and copy that, in virtual format, - into VALBUF. This is assuming that floating point values are returned - as doubles in d0/d1. */ - + into VALBUF. */ #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - bcopy ((char *)(REGBUF) + \ - (TYPE_LENGTH(TYPE) >= 4 ? 0 : 4 - TYPE_LENGTH(TYPE)), \ - VALBUF, TYPE_LENGTH(TYPE)) + bcopy ((char *)(REGBUF), VALBUF, TYPE_LENGTH(TYPE)) /* Write into appropriate registers a function return value @@ -220,11 +240,22 @@ read_memory_integer (read_register (SP_REGNUM), 2) #define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \ (FRAMELESS) = frameless_look_for_prologue(FI) -#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 2, 2)) +/* Any function with a frame looks like this + SECOND ARG + FIRST ARG + RET PC + SAVED R2 + SAVED R3 + SAVED FP <-FP POINTS HERE + LOCALS0 + LOCALS1 <-SP POINTS HERE + + */ +#define FRAME_SAVED_PC(FRAME) frame_saved_pc(FRAME) -#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) +#define FRAME_ARGS_ADDRESS(fi) frame_args_address(fi) -#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) +#define FRAME_LOCALS_ADDRESS(fi) frame_locals_address(fi); /* Set VAL to the number of args passed to frame described by FI. Can set VAL to -1, meaning no way to tell. */ @@ -237,7 +268,7 @@ read_memory_integer (read_register (SP_REGNUM), 2) /* Return number of bytes at start of arglist that are not really args. */ -#define FRAME_ARGS_SKIP 4 +#define FRAME_ARGS_SKIP 0 /* Put here the code to store, into a struct frame_saved_regs, the addresses of the saved registers of frame described by FRAME_INFO. @@ -245,12 +276,13 @@ read_memory_integer (read_register (SP_REGNUM), 2) ways in the stack frame. sp is even more special: the address we return for it IS the sp for the next frame. */ -#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) abort(); +#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ + frame_find_saved_regs(frame_info, &(frame_saved_regs)) /* Push an empty stack frame, to record the current PC, etc. */ -#define PUSH_DUMMY_FRAME { h8300_push_dummy_frame (); } +/*#define PUSH_DUMMY_FRAME { h8300_push_dummy_frame (); }*/ /* Discard from the stack the innermost frame, restoring all registers. */ @@ -259,11 +291,16 @@ read_memory_integer (read_register (SP_REGNUM), 2) #define SHORT_INT_MAX 32767 #define SHORT_INT_MIN -32768 -#undef longest_to_int -#define longest_to_int(x) (x & 0xffff) - #define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \ { bcopy ((FROM), (TO), 2); } #define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \ { bcopy ((FROM), (TO), 4); } + +#define BEFORE_MAIN_LOOP_HOOK \ + hms_before_main_loop(); + + +#define NAMES_HAVE_UNDERSCORE + +typedef unsigned short INSN_WORD; |