-/* Parameters for execution on a Mitsubishi fr30 processor.
- Copyright 1996, 1997 Free Software Foundation, Inc.
+/* Parameters for execution on a Fujitsu FR30 processor.
This file is part of GDB.
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_FR30 1
+#define FR30_GENREGS 16
+#define FR30_DEDICATEDREGS 8
+#define FR30_REGSIZE 4 /* bytes */
-/* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */
-#define TARGET_BYTE_ORDER BIG_ENDIAN
+#define NUM_REGS (FR30_GENREGS + FR30_DEDICATEDREGS)
+#define REGISTER_BYTES ((FR30_GENREGS + FR30_DEDICATEDREGS)*FR30_REGSIZE)
+
+/* Index within `registers' of the first byte of the space for
+ register N. */
+#define REGISTER_BYTE(N) ((N) * FR30_REGSIZE)
-/* mvs_check REGISTER_NAMES */
+/* Initializer for an array of names of registers.
+ There should be NUM_REGS strings in this initializer. */
#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 */
+{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \
+ "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
+ "pc", "ps", "tbr", "rp", "ssp", "usp", "mdh", "mdl" }
+
+/* Offset from address of function to start of its code.
+ Zero on most machines. */
#define FUNCTION_START_OFFSET 0
-/* mvs_check DECR_PC_AFTER_BREAK */
+/* Amount PC must be decremented by after a breakpoint.
+ This is often the number of bytes in BREAKPOINT
+ but not always. */
+
#define DECR_PC_AFTER_BREAK 0
-/* mvs_check INNER_THAN */
+/* Stack grows downward. */
+
#define INNER_THAN <
-/* mvs_check SAVED_PC_AFTER_CALL */
-#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+#define TARGET_BYTE_ORDER BIG_ENDIAN
-#ifdef __STDC__
+#define R4_REGNUM 4
+#define R7_REGNUM 7
+#define FP_REGNUM 14 /* Frame pointer */
+#define SP_REGNUM 15 /* Stack pointer */
+#define PC_REGNUM 16 /* Program counter */
+#define RP_REGNUM 19 /* Return pointer */
+
+#define FIRST_ARGREG R4_REGNUM /* first arg (or struct ret val addr) */
+#define LAST_ARGREG R7_REGNUM /* fourth (or third arg) */
+#define RETVAL_REG R4_REGNUM /* return vaue */
+
+/* Say how long (ordinary) registers are. This is a piece of bogosity
+ used in push_word and a few other places; REGISTER_RAW_SIZE is the
+ real way to know how big a register is. */
+#define REGISTER_SIZE FR30_REGSIZE
+
+/* Number of bytes of storage in the actual machine representation
+ for register N. */
+#define REGISTER_RAW_SIZE(N) FR30_REGSIZE
+
+/* Largest value REGISTER_RAW_SIZE can have. */
+#define MAX_REGISTER_RAW_SIZE FR30_REGSIZE
+
+/* Number of bytes of storage in the program's representation
+ for register N. */
+#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have. */
+#define MAX_REGISTER_VIRTUAL_SIZE FR30_REGSIZE
+
+extern void fr30_pop_frame PARAMS ((void));
+/* XXX do we need the parameter ? */
+#define POP_FRAME fr30_pop_frame()
+
+/* Number of bytes at start of arglist that are not really args. */
+#define FRAME_ARGS_SKIP 0
+
+/* Return the GDB type object for the "standard" data type
+ of data in register N. */
+#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
+
+/* 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(RETVAL_REG), TYPE_LENGTH (TYPE))
+
+/* 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). */
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+ extract_address (REGBUF + REGISTER_BYTE (RETVAL_REG), \
+ REGISTER_RAW_SIZE (RETVAL_REG))
+
+
+#define FRAME_ARGS_ADDRESS(fi) (fi->frame)
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+
+/* Return number of args passed to a frame.
+ Can return -1, meaning no way to tell. */
+#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1)
+
+#ifdef __STDC__ /* Forward decls for prototypes */
struct frame_info;
struct frame_saved_regs;
struct type;
struct value;
#endif
+#define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
+
+extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
+#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
+
+extern CORE_ADDR fr30_frame_saved_pc PARAMS ((struct frame_info *));
+#define FRAME_SAVED_PC(fi) (fr30_frame_saved_pc (fi))
+
+#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+
+extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
+#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
+
+/* Write into appropriate registers a function return value
+ of type TYPE, given in virtual format. */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+ write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
+
+/* 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. */
+#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
+
+/* Use INT #BREAKPOINT_INTNUM instruction for breakpoint */
+#define FR30_BREAKOP 0x1f /* opcode, type D instruction */
+#define BREAKPOINT_INTNUM 9 /* one of the reserved traps */
+#define BREAKPOINT {FR30_BREAKOP, BREAKPOINT_INTNUM}
+
+
+
+
+
+
+
+
+#if(0) /* Z.R. */
+
+ARM example
+
+#ifdef __STDC__ /* Forward decls for prototypes */
+struct type;
+struct value;
+#endif
+
+#define TARGET_BYTE_ORDER_SELECTABLE
+
+/* IEEE format floating point */
+
+#define IEEE_FLOAT
+
+/* FIXME: may need a floatformat_ieee_double_bigbyte_littleword format for
+ BIG_ENDIAN use. -fnf */
+
+#define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
+ ? &floatformat_ieee_double_big \
+ : &floatformat_ieee_double_littlebyte_bigword)
+
+/* When reading symbols, we need to zap the low bit of the address, which
+ may be set to 1 for Thumb functions. */
+
+#define SMASH_TEXT_ADDRESS(addr) ((addr) &= ~0x1)
+
+/* Remove useless bits from addresses in a running program. */
+
+CORE_ADDR arm_addr_bits_remove PARAMS ((CORE_ADDR));
+
+#define ADDR_BITS_REMOVE(val) (arm_addr_bits_remove (val))
+
+/* Offset from address of function to start of its code.
+ Zero on most machines. */
+
+#define FUNCTION_START_OFFSET 0
+
+/* Advance PC across any function entry prologue instructions
+ to reach some "real" code. */
+
+extern CORE_ADDR arm_skip_prologue PARAMS ((CORE_ADDR pc));
+
+#define SKIP_PROLOGUE(pc) { pc = arm_skip_prologue (pc); }
+
+/* Immediately after a function call, return the saved pc.
+ Can't always go through the frames for this because on some machines
+ the new frame is not set up until the new function executes
+ some instructions. */
+
+#define SAVED_PC_AFTER_CALL(frame) arm_saved_pc_after_call (frame)
+struct frame_info;
+extern CORE_ADDR arm_saved_pc_after_call PARAMS ((struct frame_info *));
+
+/* I don't know the real values for these. */
+#define TARGET_UPAGES UPAGES
+#define TARGET_NBPG NBPG
+
+/* Address of end of stack space. */
+
+#define STACK_END_ADDR (0x01000000 - (TARGET_UPAGES * TARGET_NBPG))
+
+/* Stack grows downward. */
+
+#define INNER_THAN <
+
+/* Sequence of bytes for breakpoint instruction. */
+
+/* !!!! if we're using RDP, then we're inserting breakpoints and storing
+ their handles instread of what was in memory. It is nice that
+ this is the same size as a handle - otherwise remote-rdp will
+ have to change. */
+
+#define ARM_LE_BREAKPOINT {0x00,0x00,0x18,0xef} /* BKPT_SWI from <sys/ptrace.h> */
+#define ARM_BE_BREAKPOINT {0xef,0x18,0x00,0x00} /* BKPT_SWI from <sys/ptrace.h> */
+#define THUMB_LE_BREAKPOINT {0x18,0xdf} /* swi 24 */
+#define THUMB_BE_BREAKPOINT {0xdf,0x18} /* swi 24 */
+
+/* The following has been superseded by BREAKPOINT_FOR_PC, but
+ is defined merely to keep mem-break.c happy. */
+#define LITTLE_BREAKPOINT ARM_LE_BREAKPOINT
+#define BIG_BREAKPOINT ARM_BE_BREAKPOINT
+
+/* BREAKPOINT_FROM_PC uses the program counter value to determine whether a
+ 16- or 32-bit breakpoint should be used. It returns a pointer
+ to a string of bytes that encode a breakpoint instruction, stores
+ the length of the string to *lenptr, and adjusts the pc (if necessary) to
+ point to the actual memory location where the breakpoint should be
+ inserted. */
+
+unsigned char * arm_breakpoint_from_pc PARAMS ((CORE_ADDR * pcptr, int * lenptr));
+#define BREAKPOINT_FROM_PC(pcptr, lenptr) arm_breakpoint_from_pc (pcptr, lenptr)
+
+/* Amount PC must be decremented by after a breakpoint.
+ This is often the number of bytes in BREAKPOINT
+ but not always. */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* Nonzero if instruction at PC is a return instruction. */
+
+#define ABOUT_TO_RETURN(pc) \
+ ((read_memory_integer(pc, 4) & 0x0fffffff == 0x01b0f00e) || \
+ (read_memory_integer(pc, 4) & 0x0ffff800 == 0x09eba800))
+
+/* code to execute to print interesting information about the
+ * floating point processor (if any)
+ * No need to define if there is nothing to do.
+ */
+#define FLOAT_INFO { arm_float_info (); }
+
+/* Say how long (ordinary) registers are. This is a piece of bogosity
+ used in push_word and a few other places; REGISTER_RAW_SIZE is the
+ real way to know how big a register is. */
+
+#define REGISTER_SIZE 4
+
+/* Number of machine registers */
+
+/* Note: I make a fake copy of the pc in register 25 (calling it ps) so
+ that I can clear the status bits from pc (register 15) */
+
+#define NUM_REGS 26
+
+/* Initializer for an array of names of registers.
+ There should be NUM_REGS strings in this initializer. */
+
+#define ORIGINAL_REGISTER_NAMES \
+{ "a1", "a2", "a3", "a4", /* 0 1 2 3 */ \
+ "v1", "v2", "v3", "v4", /* 4 5 6 7 */ \
+ "v5", "v6", "sl", "fp", /* 8 9 10 11 */ \
+ "ip", "sp", "lr", "pc", /* 12 13 14 15 */ \
+ "f0", "f1", "f2", "f3", /* 16 17 18 19 */ \
+ "f4", "f5", "f6", "f7", /* 20 21 22 23 */ \
+ "fps","ps" } /* 24 25 */
+
+/* These names are the ones which gcc emits, and
+ I find them less confusing. Toggle between them
+ using the `othernames' command. */
+
+#define ADDITIONAL_REGISTER_NAMES \
+{ "r0", "r1", "r2", "r3", /* 0 1 2 3 */ \
+ "r4", "r5", "r6", "r7", /* 4 5 6 7 */ \
+ "r8", "r9", "sl", "fp", /* 8 9 10 11 */ \
+ "ip", "sp", "lr", "pc", /* 12 13 14 15 */ \
+ "f0", "f1", "f2", "f3", /* 16 17 18 19 */ \
+ "f4", "f5", "f6", "f7", /* 20 21 22 23 */ \
+ "fps","ps" } /* 24 25 */
+
+#define REGISTER_NAMES ADDITIONAL_REGISTER_NAMES
+#ifndef REGISTER_NAMES
+#define REGISTER_NAMES ORIGINAL_REGISTER_NAMES
+#endif
+
+/* 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,
+ and some are "phony" register numbers which are too large
+ 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 A1_REGNUM 0 /* first integer-like argument */
+#define A4_REGNUM 3 /* last integer-like argument */
+#define AP_REGNUM 11
+#define FP_REGNUM 11 /* Contains address of executing stack frame */
+#define SP_REGNUM 13 /* Contains address of top of stack */
+#define LR_REGNUM 14 /* address to return to from a function call */
+#define PC_REGNUM 15 /* Contains program counter */
+#define F0_REGNUM 16 /* first floating point register */
+#define F3_REGNUM 19 /* last floating point argument register */
+#define F7_REGNUM 23 /* last floating point register */
+#define FPS_REGNUM 24 /* floating point status register */
+#define PS_REGNUM 25 /* Contains processor status */
+
+#define THUMB_FP_REGNUM 7 /* R7 is frame register on Thumb */
+
+#define ARM_NUM_ARG_REGS 4
+#define ARM_LAST_ARG_REGNUM A4_REGNUM
+#define ARM_NUM_FP_ARG_REGS 4
+#define ARM_LAST_FP_ARG_REGNUM F3_REGNUM
+
+/* Instruction condition field values. */
+#define INST_EQ 0x0
+#define INST_NE 0x1
+#define INST_CS 0x2
+#define INST_CC 0x3
+#define INST_MI 0x4
+#define INST_PL 0x5
+#define INST_VS 0x6
+#define INST_VC 0x7
+#define INST_HI 0x8
+#define INST_LS 0x9
+#define INST_GE 0xa
+#define INST_LT 0xb
+#define INST_GT 0xc
+#define INST_LE 0xd
+#define INST_AL 0xe
+#define INST_NV 0xf
+
+#define FLAG_N 0x80000000
+#define FLAG_Z 0x40000000
+#define FLAG_C 0x20000000
+#define FLAG_V 0x10000000
+
+
+
+/* Total amount of space needed to store our copies of the machine's
+ register state, the array `registers'. */
+#define REGISTER_BYTES (16*4 + 12*8 + 4 + 4)
+
+/* Index within `registers' of the first byte of the space for
+ register N. */
+
+#define REGISTER_BYTE(N) (((N) < F0_REGNUM) ? (N)*4 : \
+ (((N) < PS_REGNUM) ? 16*4 + ((N) - 16)*12 : \
+ 16*4 + 8*12 + ((N) - FPS_REGNUM) * 4))
+
+/* Number of bytes of storage in the actual machine representation
+ for register N. On the vax, all regs are 4 bytes. */
+
+#define REGISTER_RAW_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 12)
+
+/* Number of bytes of storage in the program's representation
+ for register N. On the vax, all regs are 4 bytes. */
+
+#define REGISTER_VIRTUAL_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 8)
+
+/* Largest value REGISTER_RAW_SIZE can have. */
+
+#define MAX_REGISTER_RAW_SIZE 12
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have. */
+
+#define MAX_REGISTER_VIRTUAL_SIZE 8
+
+/* Nonzero if register N requires conversion
+ from raw format to virtual format. */
+#define REGISTER_CONVERTIBLE(N) ((unsigned)(N) - F0_REGNUM < 8)
+
+/* Convert data from raw format for register REGNUM in buffer FROM
+ to virtual format with type TYPE in buffer TO. */
+
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
+{ \
+ double val; \
+ convert_from_extended ((FROM), & val); \
+ store_floating ((TO), TYPE_LENGTH (TYPE), val); \
+}
+
+/* Convert data from virtual format with type TYPE in buffer FROM
+ to raw format for register REGNUM in buffer TO. */
+
+#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
+{ \
+ double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
+ convert_to_extended (&val, (TO)); \
+}
+/* Return the GDB type object for the "standard" data type
+ of data in register N. */
+
+#define REGISTER_VIRTUAL_TYPE(N) \
+ (((unsigned)(N) - F0_REGNUM) < 8 ? builtin_type_double : builtin_type_int)
+\f
+/* The system C compiler uses a similar structure return convention to gcc */
+
+#define USE_STRUCT_CONVENTION(gcc_p, type) (TYPE_LENGTH (type) > 4)
+
+/* 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)); }
+
+/* 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) \
+ if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
+ convert_from_extended (REGBUF + REGISTER_BYTE (F0_REGNUM), VALBUF); \
+ else \
+ memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE))
+
+/* Write into appropriate registers a function return value
+ of type TYPE, given in virtual format. */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+ if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) { \
+ char _buf[MAX_REGISTER_RAW_SIZE]; \
+ convert_to_extended (VALBUF, _buf); \
+ write_register_bytes (REGISTER_BYTE (F0_REGNUM), _buf, MAX_REGISTER_RAW_SIZE); \
+ } else \
+ write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
+
+/* 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). */
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF))
+
+/* Specify that for the native compiler variables for a particular
+ lexical context are listed after the beginning LBRAC instead of
+ before in the executables list of symbols. */
+#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) (!(gcc_p))
+
+\f
/* 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) */
+ We also keep the current size of the stack frame, and the offset of
+ the frame pointer from the stack pointer (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;
+ int frameoffset; \
+ int framereg;
+extern void arm_init_extra_frame_info PARAMS ((struct frame_info *fi));
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) arm_init_extra_frame_info (fi)
-extern void fr30_init_extra_frame_info PARAMS ((struct frame_info *fi));
-/* mvs_check INIT_EXTRA_FRAME_INFO */
-#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) fr30_init_extra_frame_info (fi)
-/* mvs_no_check INIT_FRAME_PC */
-#define INIT_FRAME_PC /* Not necessary */
+/* Return the frame address. On ARM, it is R11; on Thumb it is R7. */
+CORE_ADDR arm_target_read_fp PARAMS ((void));
+#define TARGET_READ_FP() arm_target_read_fp ()
+
+/* Describe the pointer in each stack frame to the previous stack frame
+ (its caller). */
+
+/* FRAME_CHAIN takes a frame's nominal address
+ and produces the frame's chain-pointer.
+
+ However, if FRAME_CHAIN_VALID returns zero,
+ it means the given frame is the outermost one and has no caller. */
+
+#define FRAME_CHAIN(thisframe) (CORE_ADDR) arm_frame_chain (thisframe)
+extern CORE_ADDR arm_frame_chain PARAMS ((struct frame_info *));
+
+#define LOWEST_PC 0x20 /* the first 0x20 bytes are the trap vectors. */
+
+#define FRAME_CHAIN_VALID(chain, thisframe) \
+ (chain != 0 && (FRAME_SAVED_PC (thisframe) >= LOWEST_PC))
+
+/* Define other aspects of the stack frame. */
+
+/* A macro that tells us whether the function invocation represented
+ by FI does not have a frame on the stack associated with it. If it
+ does not, FRAMELESS is set to 1, else 0. */
+#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
+{ \
+ CORE_ADDR func_start, after_prologue; \
+ func_start = (get_pc_function_start ((FI)->pc) + \
+ FUNCTION_START_OFFSET); \
+ after_prologue = func_start; \
+ SKIP_PROLOGUE (after_prologue); \
+ (FRAMELESS) = (after_prologue == func_start); \
+}
+
+/* Saved Pc. */
+
+#define FRAME_SAVED_PC(FRAME) arm_frame_saved_pc (FRAME)
+extern CORE_ADDR arm_frame_saved_pc PARAMS ((struct frame_info *));
+
+#define FRAME_ARGS_ADDRESS(fi) (fi->frame)
+
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+
+/* Return number of args passed to a frame.
+ Can return -1, meaning no way to tell. */
+
+#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1)
-extern void
-fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi,
- struct frame_saved_regs *regaddr));
+/* Return number of bytes at start of arglist that are not really args. */
+
+#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.
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) \
- fr30_frame_find_saved_regs(frame_info, &(frame_saved_regs))
+struct frame_saved_regs;
+struct frame_info;
+void frame_find_saved_regs PARAMS((struct frame_info *fi,
+ struct frame_saved_regs *fsr));
-extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
-/* mvs_check FRAME_CHAIN */
-#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
+ arm_frame_find_saved_regs (frame_info, &(frame_saved_regs));
-#define FRAME_CHAIN_VALID(fp, frame) generic_frame_chain_valid (fp, frame)
+\f
+/* Things needed for making the inferior call functions. */
-extern CORE_ADDR fr30_find_callers_reg PARAMS ((struct frame_info *fi,
- int regnum));
-extern CORE_ADDR fr30_frame_saved_pc PARAMS((struct frame_info *));
-/* mvs_check FRAME_SAVED_PC */
-#define FRAME_SAVED_PC(fi) fr30_frame_saved_pc (fi)
+#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
+ sp = arm_push_arguments ((nargs), (args), (sp), (struct_return), (struct_addr))
+extern CORE_ADDR
+arm_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
-/* 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))
+/* Push an empty stack frame, to record the current PC, etc. */
-/* 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));
+void arm_push_dummy_frame PARAMS ((void));
-extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
-/* mvs_check SKIP_PROLOGUE */
-#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
+#define PUSH_DUMMY_FRAME arm_push_dummy_frame ()
-/* mvs_no_check FRAME_ARGS_SKIP */
-#define FRAME_ARGS_SKIP 0
+/* Discard from the stack the innermost frame, restoring all registers. */
-/* 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(val, fi) ((val) = -1)
+void arm_pop_frame PARAMS ((void));
-#define COERCE_FLOAT_TO_DOUBLE 1
+#define POP_FRAME arm_pop_frame ()
-#define TARGET_WRITE_SP fr30_write_sp
+/* This sequence of words is the instructions
+ mov lr,pc
+ mov pc,r4
+ swi bkpt_swi
+ Note this is 12 bytes. */
+#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xef180000}
+#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
+#define CALL_DUMMY_BREAKPOINT_OFFSET arm_call_dummy_breakpoint_offset()
+extern int arm_call_dummy_breakpoint_offset PARAMS ((void));
-/* struct passing and returning stuff */
-#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
- write_register (0, STRUCT_ADDR)
+/* Insert the specified number of args and function address
+ into a call sequence of the above form stored at DUMMYNAME. */
-#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
- (TYPE_LENGTH (TYPE) > 8)
+#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
+ arm_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
-#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
- extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
- REGISTER_RAW_SIZE (V0_REGNUM))
+void arm_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun,
+ int nargs, struct value **args,
+ struct type *type, int gcc_p));
-#define REG_STRUCT_HAS_ADDR(gcc_p,type) (TYPE_LENGTH (type) > 8)
+CORE_ADDR arm_get_next_pc PARAMS ((CORE_ADDR));
+/* Functions for dealing with Thumb call thunks. */
+#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) arm_in_call_stub (pc, name)
+#define SKIP_TRAMPOLINE_CODE(pc) arm_skip_stub (pc)
+extern int arm_in_call_stub PARAMS ((CORE_ADDR pc, char *name));
+extern CORE_ADDR arm_skip_stub PARAMS ((CORE_ADDR pc));
-/* generic dummy frame stuff */
+/* Function to determine whether MEMADDR is in a Thumb function. */
+extern int arm_pc_is_thumb PARAMS ((bfd_vma memaddr));
-#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
-#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
+/* Function to determine whether MEMADDR is in a call dummy called from
+ a Thumb function. */
+extern int arm_pc_is_thumb_dummy PARAMS ((bfd_vma memaddr));
+/* Macros for setting and testing a bit in a minimal symbol that
+ marks it as Thumb function. The MSB of the minimal symbol's
+ "info" field is used for this purpose. This field is already
+ being used to store the symbol size, so the assumption is
+ that the symbol size cannot exceed 2^31.
+
+ COFF_MAKE_MSYMBOL_SPECIAL
+ ELF_MAKE_MSYMBOL_SPECIAL tests whether the COFF or ELF symbol corresponds
+ to a thumb function, and sets a "special" bit in a
+ minimal symbol to indicate that it does
+ MSYMBOL_SET_SPECIAL actually sets the "special" bit
+ MSYMBOL_IS_SPECIAL tests the "special" bit in a minimal symbol
+ MSYMBOL_SIZE returns the size of the minimal symbol, i.e.
+ the "info" field with the "special" bit masked out
+*/
+
+extern int coff_sym_is_thumb(int val);
+#define MSYMBOL_SET_SPECIAL(msym) \
+ MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000)
+#define MSYMBOL_IS_SPECIAL(msym) \
+ (((long) MSYMBOL_INFO (msym) & 0x80000000) != 0)
+#define MSYMBOL_SIZE(msym) \
+ ((long) MSYMBOL_INFO (msym) & 0x7fffffff)
-/* target-specific dummy_frame stuff */
+/* Thumb symbol are of type STT_LOPROC, (synonymous with STT_ARM_TFUNC) */
+#define ELF_MAKE_MSYMBOL_SPECIAL(sym,msym) \
+ { if(ELF_ST_TYPE(((elf_symbol_type *)(sym))->internal_elf_sym.st_info) == STT_LOPROC) \
+ MSYMBOL_SET_SPECIAL(msym); }
+
+#define COFF_MAKE_MSYMBOL_SPECIAL(val,msym) \
+ { if(coff_sym_is_thumb(val)) MSYMBOL_SET_SPECIAL(msym); }
-extern struct frame_info *fr30_pop_frame PARAMS ((struct frame_info *frame));
-/* mvs_check POP_FRAME */
-#define POP_FRAME fr30_pop_frame (get_current_frame ())
-/* mvs_no_check STACK_ALIGN */
-/* #define STACK_ALIGN(x) ((x + 3) & ~3) */
+V850 example
-extern CORE_ADDR fr30_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
-extern CORE_ADDR fr30_push_arguments PARAMS ((int nargs,
- struct value **args,
- CORE_ADDR sp,
- unsigned char struct_return,
- CORE_ADDR struct_addr));
+#define TARGET_BYTE_ORDER BIG_ENDIAN
+#define NUM_REGS 66
-/* mvs_no_check PUSH_ARGUMENTS */
-#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
- (SP) = fr30_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
+#define REGISTER_NAMES \
+{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
+ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
+ "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \
+ \
+ "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \
+ "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \
+ "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \
+ "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \
+ \
+ "pc", "fp" }
+
+#define REGISTER_BYTES (NUM_REGS * 4)
+
+#define REGISTER_SIZE 4
+#define MAX_REGISTER_RAW_SIZE 4
+
+#define R0_REGNUM 0
+#define R1_REGNUM 1
+#define SAVE1_START_REGNUM 2
+#define SAVE1_END_REGNUM 2
+#define SP_REGNUM 3
+#define ARG0_REGNUM 6
+#define ARGLAST_REGNUM 9
+#define V0_REGNUM 10
+#define V1_REGNUM 11
+#define R12_REGNUM 12
+#define SAVE2_START_REGNUM 20
+#define SAVE2_END_REGNUM 29
+#define EP_REGNUM 30
+#define SAVE3_START_REGNUM 31
+#define SAVE3_END_REGNUM 31
+#define RP_REGNUM 31
+#define PS_REGNUM 37
+#define PC_REGNUM 64
+#define FP_REGNUM 65
+#define FP_RAW_REGNUM 29
+
+#define TARGET_READ_FP() read_register (FP_RAW_REGNUM)
+#define TARGET_WRITE_FP(VAL) write_register (FP_REGNUM, (VAL))
+
+#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 {0x40, 0xF8} /* little-ended */
-#define PUSH_RETURN_ADDRESS(PC, SP) fr30_push_return_address (PC, SP)
+#define FUNCTION_START_OFFSET 0
-/* override the standard get_saved_register function with
- one that takes account of generic CALL_DUMMY frames */
-#define GET_SAVED_REGISTER
+#define DECR_PC_AFTER_BREAK 0
+
+#define INNER_THAN <
+
+#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+
+#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 fr30_init_extra_frame_info PARAMS ((struct frame_info *fi));
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) fr30_init_extra_frame_info (fi)
+#define INIT_FRAME_PC /* Not necessary */
+
+extern void fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
+#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
+
+extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
+#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
+#define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI)
+
+extern CORE_ADDR fr30_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
+extern CORE_ADDR fr30_frame_saved_pc PARAMS ((struct frame_info *));
+#define FRAME_SAVED_PC(FI) (fr30_frame_saved_pc (FI))
+
+#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
+ memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+ extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
+ REGISTER_RAW_SIZE (V0_REGNUM))
+
+#define STORE_RETURN_VALUE(TYPE, VALBUF) \
+ write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
+
+extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
+#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
+
+#define FRAME_ARGS_SKIP 0
+
+#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
+
+extern void fr30_pop_frame PARAMS ((void));
+#define POP_FRAME fr30_pop_frame()
#define USE_GENERIC_DUMMY_FRAMES
#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 FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
#define CALL_DUMMY_ADDRESS() entry_point_address ()
+extern CORE_ADDR fr30_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
+#define PUSH_RETURN_ADDRESS(PC, SP) fr30_push_return_address (PC, SP)
+
+
+#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
+
+extern CORE_ADDR
+fr30_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
+ unsigned char struct_return,
+ CORE_ADDR struct_addr));
+#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
+ (SP) = fr30_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)
+
+#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
+ (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
+
+/* override the default get_saved_register function with
+ one that takes account of generic CALL_DUMMY frames */
+#define GET_SAVED_REGISTER
+
+/* Define this for Wingdb */
+
+#define TARGET_FR30
+
+#endif /* Z.R. */
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