diff options
Diffstat (limited to 'gdb/config/h8300/tm-h8300.h')
| -rw-r--r-- | gdb/config/h8300/tm-h8300.h | 86 |
1 files changed, 64 insertions, 22 deletions
diff --git a/gdb/config/h8300/tm-h8300.h b/gdb/config/h8300/tm-h8300.h index ee270b2..5f5f613 100644 --- a/gdb/config/h8300/tm-h8300.h +++ b/gdb/config/h8300/tm-h8300.h @@ -19,6 +19,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Contributed by Steve Chamberlain sac@cygnus.com */ +#ifdef __STDC__ +struct frame_info; +struct frame_saved_regs; +struct value; +struct type; +#endif /* 1 if debugging H8/300H application */ extern int h8300hmode; @@ -41,9 +47,9 @@ extern int h8300smode; indicate real, cached values. */ #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ - init_extra_frame_info (fromleaf, fi) + h8300_init_extra_frame_info (fromleaf, fi) -extern void init_extra_frame_info (); +extern void h8300_init_extra_frame_info (); #define IEEE_FLOAT /* Define the bit, byte, and word ordering of the machine. */ @@ -142,10 +148,12 @@ extern CORE_ADDR h8300_skip_prologue (); to be actual register numbers as far as the user is concerned but do serve to get the desired values when passed to read_register. */ -#define FP_REGNUM 6 /* Contains address of executing stack frame */ -#define SP_REGNUM 7 /* Contains address of top of stack */ -#define CCR_REGNUM 8 /* Contains processor status */ -#define PC_REGNUM 9 /* Contains program counter */ +#define ARG0_REGNUM 0 /* first reg in which an arg may be passed */ +#define ARGLAST_REGNUM 2 /* last reg in which an arg may be passed */ +#define FP_REGNUM 6 /* Contain saddress of executing stack frame */ +#define SP_REGNUM 7 /* Contains address of top of stack */ +#define CCR_REGNUM 8 /* Contains processor status */ +#define PC_REGNUM 9 /* Contains program counter */ /* Extract from an array REGBUF containing the (raw) register state a function return value of type TYPE, and copy that, in virtual format, @@ -153,24 +161,33 @@ extern CORE_ADDR h8300_skip_prologue (); /* FIXME: Won't work with both h8/300's. */ +extern void h8300_extract_return_value PARAMS((struct type *, char *, char *)); #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - memcpy (VALBUF, (char *)(REGBUF), TYPE_LENGTH(TYPE)) + h8300_extract_return_value (TYPE, (char *)(REGBUF), (char *)(VALBUF)) /* Write into appropriate registers a function return value of type TYPE, given in virtual format. Assumes floats are passed in d0/d1. */ /* FIXME: Won't work with both h8/300's. */ +extern void h8300_store_return_value PARAMS((struct type *, char *)); #define STORE_RETURN_VALUE(TYPE,VALBUF) \ - write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE)) + h8300_store_return_value(TYPE, (char *) (VALBUF)) + +/* struct passing and returning stuff */ +#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \ + write_register (0, STRUCT_ADDR) + +#define USE_STRUCT_CONVENTION(gcc_p, type) (1) /* Extract from an array REGBUF containing the (raw) register state the address in which a function should return its structure value, as a CORE_ADDR (or an expression that can be used as one). */ -/* FIXME: Won't work with both h8/300's. */ -#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(CORE_ADDR *)(REGBUF)) - +#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ + extract_address (REGBUF + REGISTER_BYTE (0), \ + REGISTER_RAW_SIZE (0)) + /* Describe the pointer in each stack frame to the previous stack frame (its caller). */ @@ -181,7 +198,6 @@ extern CORE_ADDR h8300_skip_prologue (); it means the given frame is the outermost one and has no caller. */ #define FRAME_CHAIN(FRAME) h8300_frame_chain(FRAME) -struct frame_info ; CORE_ADDR h8300_frame_chain PARAMS ((struct frame_info *)); /* In the case of the H8/300, the frame's nominal address @@ -212,7 +228,7 @@ CORE_ADDR h8300_frame_chain PARAMS ((struct frame_info *)); LOCALS1 <-SP POINTS HERE */ -#define FRAME_SAVED_PC(FRAME) frame_saved_pc(FRAME) +#define FRAME_SAVED_PC(FRAME) h8300_frame_saved_pc(FRAME) #define FRAME_ARGS_ADDRESS(fi) frame_args_address(fi) @@ -237,17 +253,9 @@ CORE_ADDR h8300_frame_chain PARAMS ((struct frame_info *)); the address we return for it IS the sp for the next frame. */ #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ - frame_find_saved_regs(frame_info, &(frame_saved_regs)) + h8300_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 (); }*/ - -/* Discard from the stack the innermost frame, restoring all registers. */ - -#define POP_FRAME { h8300_pop_frame (); } - typedef unsigned short INSN_WORD; @@ -259,3 +267,37 @@ typedef unsigned short INSN_WORD; #define NOP { 0x01, 0x80} /* A sleep insn */ #define BELIEVE_PCC_PROMOTION 1 + +/* + * CALL_DUMMY stuff: + */ + +#define CALL_DUMMY {0} +#define CALL_DUMMY_LENGTH (0) +#define CALL_DUMMY_ADDRESS() entry_point_address () +#define CALL_DUMMY_LOCATION AT_ENTRY_POINT +#define CALL_DUMMY_START_OFFSET (0) +#define CALL_DUMMY_BREAKPOINT_OFFSET (0) + +extern CORE_ADDR h8300_push_arguments PARAMS ((int nargs, + struct value **args, + CORE_ADDR sp, + unsigned char struct_return, + CORE_ADDR struct_addr)); +extern CORE_ADDR h8300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); + +#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP) +#define FIX_CALL_DUMMY(DUMMY, START_SP, FUNADDR, NARGS, ARGS, TYPE, GCCP) +#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ + (SP) = h8300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) +/* Push an empty stack frame, to record the current PC, etc. */ +#define PUSH_DUMMY_FRAME generic_push_dummy_frame () +/* Discard from the stack the innermost frame, restoring all registers. */ +#define POP_FRAME h8300_pop_frame () +#define PUSH_RETURN_ADDRESS(PC, SP) h8300_push_return_address (PC, SP) + +/* override the standard get_saved_register function with + one that takes account of generic CALL_DUMMY frames */ +#define GET_SAVED_REGISTER + + |