/* Parameters for execution on a Mitsubishi m32r processor. Copyright 1996, 1997 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Used by mswin. */ #define TARGET_M32R 1 /* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */ #define TARGET_BYTE_ORDER BIG_ENDIAN /* mvs_check REGISTER_NAMES */ #define REGISTER_NAMES \ { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ "r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \ "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \ /* "cond", "sm", "bsm", "ie", "bie", "bcarry", */ \ } /* mvs_check NUM_REGS */ #define NUM_REGS 24 /* mvs_check REGISTER_SIZE */ #define REGISTER_SIZE 4 /* mvs_check MAX_REGISTER_RAW_SIZE */ #define MAX_REGISTER_RAW_SIZE 4 /* mvs_check *_REGNUM */ #define R0_REGNUM 0 #define STRUCT_RETURN_REGNUM 0 #define ARG0_REGNUM 0 #define ARGLAST_REGNUM 3 #define V0_REGNUM 0 #define V1_REGNUM 1 #define FP_REGNUM 13 #define RP_REGNUM 14 #define SP_REGNUM 15 #define PSW_REGNUM 16 #define CBR_REGNUM 17 #define SPI_REGNUM 18 #define SPU_REGNUM 19 #define BPC_REGNUM 20 #define PC_REGNUM 21 #define ACCL_REGNUM 22 #define ACCH_REGNUM 23 /* mvs_check REGISTER_BYTES */ #define REGISTER_BYTES (NUM_REGS * 4) /* mvs_check REGISTER_VIRTUAL_TYPE */ #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int /* mvs_check REGISTER_BYTE */ #define REGISTER_BYTE(REG) ((REG) * 4) /* mvs_check REGISTER_VIRTUAL_SIZE */ #define REGISTER_VIRTUAL_SIZE(REG) 4 /* mvs_check REGISTER_RAW_SIZE */ #define REGISTER_RAW_SIZE(REG) 4 /* mvs_check MAX_REGISTER_VIRTUAL_SIZE */ #define MAX_REGISTER_VIRTUAL_SIZE 4 /* mvs_check BREAKPOINT */ #define BREAKPOINT {0x10, 0xf1} /* mvs_no_check FUNCTION_START_OFFSET */ #define FUNCTION_START_OFFSET 0 /* mvs_check DECR_PC_AFTER_BREAK */ #define DECR_PC_AFTER_BREAK 0 /* mvs_check INNER_THAN */ #define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) /* mvs_check SAVED_PC_AFTER_CALL */ #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM) struct frame_info; struct frame_saved_regs; struct type; struct value; /* Define other aspects of the stack frame. We keep the offsets of all saved registers, 'cause we need 'em a lot! We also keep the current size of the stack frame, and whether the frame pointer is valid (for frameless functions, and when we're still in the prologue of a function with a frame) */ /* mvs_check EXTRA_FRAME_INFO */ #define EXTRA_FRAME_INFO \ struct frame_saved_regs fsr; \ int framesize; \ int using_frame_pointer; extern void m32r_init_extra_frame_info (struct frame_info *fi); /* mvs_check INIT_EXTRA_FRAME_INFO */ #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) m32r_init_extra_frame_info (fi) /* mvs_no_check INIT_FRAME_PC */ #define INIT_FRAME_PC /* Not necessary */ extern void m32r_frame_find_saved_regs (struct frame_info *fi, struct frame_saved_regs *regaddr); /* Put here the code to store, into a struct frame_saved_regs, the addresses of the saved registers of frame described by FRAME_INFO. This includes special registers such as pc and fp saved in special ways in the stack frame. sp is even more special: the address we return for it IS the sp for the next frame. */ /* mvs_check FRAME_FIND_SAVED_REGS */ #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ m32r_frame_find_saved_regs(frame_info, &(frame_saved_regs)) extern CORE_ADDR m32r_frame_chain (struct frame_info *fi); /* mvs_check FRAME_CHAIN */ #define FRAME_CHAIN(fi) m32r_frame_chain (fi) #define FRAME_CHAIN_VALID(fp, frame) generic_file_frame_chain_valid (fp, frame) extern CORE_ADDR m32r_find_callers_reg (struct frame_info *fi, int regnum); extern CORE_ADDR m32r_frame_saved_pc (struct frame_info *); /* mvs_check FRAME_SAVED_PC */ #define FRAME_SAVED_PC(fi) m32r_frame_saved_pc (fi) /* mvs_check EXTRACT_RETURN_VALUE */ #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \ memcpy ((VALBUF), \ (char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \ ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \ TYPE_LENGTH (TYPE)) /* mvs_check STORE_RETURN_VALUE */ #define STORE_RETURN_VALUE(TYPE, VALBUF) \ write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \ ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\ (VALBUF), TYPE_LENGTH (TYPE)); extern CORE_ADDR m32r_skip_prologue (CORE_ADDR pc); /* mvs_check SKIP_PROLOGUE */ #define SKIP_PROLOGUE(pc) (m32r_skip_prologue (pc)) /* mvs_no_check FRAME_ARGS_SKIP */ #define FRAME_ARGS_SKIP 0 /* mvs_no_check FRAME_ARGS_ADDRESS */ #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) /* mvs_no_check FRAME_LOCALS_ADDRESS */ #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) /* mvs_no_check FRAME_NUM_ARGS */ #define FRAME_NUM_ARGS(fi) (-1) #define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1) extern void m32r_write_sp (CORE_ADDR val); #define TARGET_WRITE_SP m32r_write_sp /* struct passing and returning stuff */ #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \ write_register (0, STRUCT_ADDR) extern use_struct_convention_fn m32r_use_struct_convention; #define USE_STRUCT_CONVENTION(GCC_P, TYPE) m32r_use_struct_convention (GCC_P, TYPE) #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \ REGISTER_RAW_SIZE (V0_REGNUM)) #define REG_STRUCT_HAS_ADDR(gcc_p,type) (TYPE_LENGTH (type) > 8) /* generic dummy frame stuff */ #define PUSH_DUMMY_FRAME generic_push_dummy_frame () #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP) /* target-specific dummy_frame stuff */ extern struct frame_info *m32r_pop_frame (struct frame_info *frame); /* mvs_check POP_FRAME */ #define POP_FRAME m32r_pop_frame (get_current_frame ()) /* mvs_no_check STACK_ALIGN */ /* #define STACK_ALIGN(x) ((x + 3) & ~3) */ extern CORE_ADDR m32r_push_return_address (CORE_ADDR, CORE_ADDR); extern CORE_ADDR m32r_push_arguments (int nargs, struct value **args, CORE_ADDR sp, unsigned char struct_return, CORE_ADDR struct_addr); /* mvs_no_check PUSH_ARGUMENTS */ #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ (m32r_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)) #define PUSH_RETURN_ADDRESS(PC, SP) m32r_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) #define USE_GENERIC_DUMMY_FRAMES 1 #define CALL_DUMMY {0} #define CALL_DUMMY_LENGTH (0) #define CALL_DUMMY_START_OFFSET (0) #define CALL_DUMMY_BREAKPOINT_OFFSET (0) #define FIX_CALL_DUMMY(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP) #define CALL_DUMMY_LOCATION AT_ENTRY_POINT #define CALL_DUMMY_ADDRESS() entry_point_address ()