/* Parameters for execution on a Matsushita mn10300 processor.
- Copyright 1996
- Free Software Foundation, Inc.
+ Copyright 1996, 1997 Free Software Foundation, Inc.
Contributed by Geoffrey Noer <noer@cygnus.com>
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-#define TARGET_BYTE_ORDER LITTLE_ENDIAN
-
-#define REGISTER_BYTES (NUM_REGS * 4)
+/* The mn10300 is little endian. */
+#define TARGET_BYTE_ORDER_DEFAULT LITTLE_ENDIAN
+/* All registers are 32bits (phew!). */
#define REGISTER_SIZE 4
#define MAX_REGISTER_RAW_SIZE 4
+#define NUM_REGS 32
+
+#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
+
+#define REGISTER_BYTE(REG) ((REG) * 4)
+#define REGISTER_VIRTUAL_SIZE(REG) 4
+#define REGISTER_RAW_SIZE(REG) 4
+
+#define MAX_REGISTER_VIRTUAL_SIZE 4
-#define NUM_REGS 19
+#define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)
-#define REGISTER_NAMES \
-{ "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", \
- "sp", "pc", "mdr", "psw", "lir", "lar" \
- \
- "fp", "vo", "rp", "arg0", "arglast"}
+extern char **mn10300_register_names;
+#define REGISTER_NAME(i) mn10300_register_names[i]
+#define D2_REGNUM 2
+#define D3_REGNUM 3
+#define A2_REGNUM 6
+#define A3_REGNUM 7
#define SP_REGNUM 8
#define PC_REGNUM 9
#define MDR_REGNUM 10
#define LIR_REGNUM 12
#define LAR_REGNUM 13
-#define FP_REGNUM 14 /* needs to be virtual register ??? */
-#define V0_REGNUM 15 /* needs to be virtual register ??? */
-#define RP_REGNUM 16 /* needs to be virtual register ??? */
-#define ARG0_REGNUM 17 /* needs to be virtual register ??? */
-#define ARGLAST_REGNUM 18 /* needs to be virtual register ??? */
+/* Pseudo register that contains true address of executing stack frame */
+#define FP_REGNUM 31
-#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
-
-#define REGISTER_BYTE(REG) ((REG) * 4)
-#define REGISTER_VIRTUAL_SIZE(REG) 4
-#define REGISTER_RAW_SIZE(REG) 4
-
-#define MAX_REGISTER_VIRTUAL_SIZE 4
-
-#define BREAKPOINT {0xff, 0xff}
+/* BREAKPOINT_FROM_PC uses the program counter value to determine the
+ breakpoint that should be used */
+extern breakpoint_from_pc_fn mn10300_breakpoint_from_pc;
+#define BREAKPOINT_FROM_PC(pcptr, lenptr) mn10300_breakpoint_from_pc (pcptr, lenptr)
#define FUNCTION_START_OFFSET 0
#define DECR_PC_AFTER_BREAK 0
-#define INNER_THAN <
+#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
-#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+#define SAVED_PC_AFTER_CALL(frame) \
+ read_memory_integer (read_register (SP_REGNUM), 4)
#ifdef __STDC__
struct frame_info;
-struct frame_saved_regs;
struct type;
struct value;
#endif
-#define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
-
-extern void mn10300_init_extra_frame_info PARAMS ((struct frame_info *fi));
+extern void mn10300_init_extra_frame_info PARAMS ((struct frame_info *));
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10300_init_extra_frame_info (fi)
#define INIT_FRAME_PC /* Not necessary */
-extern void mn10300_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
-#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
+#define FRAME_INIT_SAVED_REGS(fi) /* handled by init_extra_frame_info */
-extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *fi));
+extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *));
#define FRAME_CHAIN(fi) mn10300_frame_chain (fi)
#define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI)
-extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
+extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *, int));
extern CORE_ADDR mn10300_frame_saved_pc PARAMS ((struct frame_info *));
#define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI))
+/* 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. */
+
#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
- memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
+ if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \
+ memcpy (VALBUF, REGBUF + REGISTER_BYTE (4), TYPE_LENGTH (TYPE)); \
+ else \
+ memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), TYPE_LENGTH (TYPE));
+
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
- extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
- REGISTER_RAW_SIZE (V0_REGNUM))
+ extract_address (REGBUF + REGISTER_BYTE (4), \
+ REGISTER_RAW_SIZE (4))
#define STORE_RETURN_VALUE(TYPE, VALBUF) \
- write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
+ if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \
+ write_register_bytes(REGISTER_BYTE (4), VALBUF, TYPE_LENGTH (TYPE)); \
+ else \
+ write_register_bytes(REGISTER_BYTE (0), VALBUF, TYPE_LENGTH (TYPE));
+
+#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
+ (SP) = mn10300_store_struct_return (STRUCT_ADDR, SP)
-extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR pc));
-#define SKIP_PROLOGUE(pc) pc = mn10300_skip_prologue (pc)
+extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR));
+#define SKIP_PROLOGUE(pc) (mn10300_skip_prologue (pc))
#define FRAME_ARGS_SKIP 0
#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
-extern void mn10300_pop_frame PARAMS ((struct frame_info *frame));
+extern void mn10300_pop_frame PARAMS ((struct frame_info *));
#define POP_FRAME mn10300_pop_frame (get_current_frame ())
-#define USE_GENERIC_DUMMY_FRAMES
+#define USE_GENERIC_DUMMY_FRAMES 1
#define CALL_DUMMY {0}
-#undef CALL_DUMMY /* for now, no function calls */
#define CALL_DUMMY_START_OFFSET (0)
#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
#define CALL_DUMMY_ADDRESS() entry_point_address ()
+
extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
#define PUSH_RETURN_ADDRESS(PC, SP) mn10300_push_return_address (PC, SP)
#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
extern CORE_ADDR
-mn10300_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
- unsigned char struct_return,
- CORE_ADDR struct_addr));
+mn10300_push_arguments PARAMS ((int, struct value **, CORE_ADDR,
+ unsigned char, CORE_ADDR ));
#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
(SP) = mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
-#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
+#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
-#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
+#define REG_STRUCT_HAS_ADDR(gcc_p,TYPE) \
+ (TYPE_LENGTH (TYPE) > 8)
-#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
- (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
+extern use_struct_convention_fn mn10300_use_struct_convention;
+#define USE_STRUCT_CONVENTION(GCC_P, TYPE) mn10300_use_struct_convention (GCC_P, TYPE)
/* override the default get_saved_register function with
one that takes account of generic CALL_DUMMY frames */
-#define GET_SAVED_REGISTER
+#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
+ generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
+
+/* Cons up virtual frame pointer for trace */
+extern void mn10300_virtual_frame_pointer PARAMS ((CORE_ADDR, long *, long *));
+#define TARGET_VIRTUAL_FRAME_POINTER(PC, REGP, OFFP) \
+ mn10300_virtual_frame_pointer ((PC), (REGP), (OFFP))
/* Define this for Wingdb */
projects / deliverable / binutils-gdb.git / blobdiff