/* 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;
+extern int h8300smode;
/* Number of bytes in a word */
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. */
/* Stack grows downward. */
-#define INNER_THAN <
+#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
/*#define BREAKPOINT {0x7A, 0xFF}*/
#define BREAKPOINT {0x01, 0x80} /* Sleep */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-/* Allow any of the return instructions, including a trapv and a return
- from interupt. */
-
-#define ABOUT_TO_RETURN(pc) ((read_memory_unsigned_integer (pc, 2) & ~0x3) == 0x4e74)
-
/* Say how long registers are. */
#define REGISTER_SIZE 4
#define REGISTER_NAMES \
{"r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp", "ccr","pc","cycles","tick","inst"}
+/* An array of names of registers. */
+
+extern char **h8300_register_names;
+#define REGISTER_NAME(i) h8300_register_names[i]
+
/* Register numbers of various important registers.
Note that some of these values are "real" register numbers,
and correspond to the general registers of the machine,
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,
/* 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))
-\f
+#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). */
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
the frame chain or following frames back into the startup code.
See the comments in objfile.h */
-#define FRAME_CHAIN_VALID_ALTERNATE
+#define FRAME_CHAIN_VALID(fp,fi) alternate_frame_chain_valid (fp, fi)
/* Define other aspects of the stack frame. */
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)
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))
\f
-/* 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;
#define NUM_REALREGS 10
#define NOP { 0x01, 0x80} /* A sleep insn */
+
+#define BELIEVE_PCC_PROMOTION 1
+
+/*
+ * CALL_DUMMY stuff:
+ */
+
+#define USE_GENERIC_DUMMY_FRAMES 1
+#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, FP)
+#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(raw_buffer, optimized, addrp, frame, regnum, lval) \
+ generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
+
+
+
projects / deliverable / binutils-gdb.git / blobdiff