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* findvar.c (read_register, write_register): Make these capable
of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
This commit is contained in:
Stu Grossman
parent
f747d2596a
commit
01aa2b19a1
@ -19,7 +19,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Contributed by Steve Chamberlain sac@cygnus.com */
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#define GDB_TARGET_IS_H8500
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#define IEEE_FLOAT 1
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@ -83,19 +83,21 @@ extern CORE_ADDR h8500_skip_prologue ();
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/* Say how much memory is needed to store a copy of the register set */
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#define REGISTER_BYTES ((NUM_REGS)*4)
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#define REGISTER_BYTES (24)
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/* Index within `registers' of the first byte of the space for
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register N. */
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#define REGISTER_BYTE(N) ((N)*4)
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int regoff[];
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#define REGISTER_BYTE(N) (regoff[N])
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/* Number of bytes of storage in the actual machine representation
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for register N. */
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#define REGISTER_RAW_SIZE(N) register_raw_size(N)
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#define REGISTER_RAW_SIZE(N) h8500_register_size(N)
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int h8500_register_size PARAMS ((int regno));
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#define REGISTER_VIRTUAL_SIZE(N) register_virtual_size(N)
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#define REGISTER_VIRTUAL_SIZE(N) h8500_register_size(N)
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/* Largest value REGISTER_RAW_SIZE can have. */
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@ -108,33 +110,31 @@ extern CORE_ADDR h8500_skip_prologue ();
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/* Nonzero if register N requires conversion
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from raw format to virtual format. */
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#define REGISTER_CONVERTIBLE(N) 1
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#define REGISTER_CONVERTIBLE(N) (0)
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/* Convert data from raw format for register REGNUM
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to virtual format for register REGNUM. */
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#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
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register_convert_to_virtual(REGNUM, FROM, TO)
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{ memcpy ((TO), (FROM), 4); }
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/* Convert data from virtual format for register REGNUM
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to raw format for register REGNUM. */
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#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
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register_convert_to_raw(REGNUM, FROM, TO)
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{ memcpy ((TO), (FROM), 4); }
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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struct type *register_virtual_type();
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#define REGISTER_VIRTUAL_TYPE(N) register_virtual_type(N)
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#define REGISTER_VIRTUAL_TYPE(N) h8500_register_virtual_type(N)
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struct type *h8500_register_virtual_type PARAMS ((int regno));
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/* Initializer for an array of names of registers.
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Entries beyond the first NUM_REGS are ignored. */
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#define REGISTER_NAMES \
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{"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
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"pr0", "pr1","pr2","pr3","pr4","pr5","pr6","pr7", \
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"ccr","pc", \
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"cp","dp","ep","tp" }
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@ -146,36 +146,27 @@ struct type *register_virtual_type();
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but do serve to get the desired values when passed to read_register. */
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#define R0 0
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#define R1 1
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#define R2 2
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#define R3 3
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#define R4 4
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#define R5 5
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#define R6 6
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#define R7 7
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#define R0_REGNUM 0
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#define R1_REGNUM 1
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#define R2_REGNUM 2
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#define R3_REGNUM 3
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#define R4_REGNUM 4
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#define R5_REGNUM 5
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#define R6_REGNUM 6
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#define R7_REGNUM 7
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#define PR0 8 /* R0-R7 with seg prefixed */
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#define PR1 9
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#define PR2 10
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#define PR3 11
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#define PR4 12
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#define PR5 13
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#define PR6 14
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#define PR7 15
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#define SP_REGNUM R7_REGNUM /* Contains address of top of stack */
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#define FP_REGNUM R6_REGNUM /* Contains address of executing stack frame */
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#define SP_REGNUM PR7 /* Contains address of top of stack */
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#define FP_REGNUM PR6 /* Contains address of executing stack frame */
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#define CCR_REGNUM 8 /* Contains processor status */
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#define PC_REGNUM 9 /* Contains program counter */
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#define CCR_REGNUM 16 /* Contains processor status */
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#define PC_REGNUM 17 /* Contains program counter */
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#define SEG_C_REGNUM 10 /* Segment registers */
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#define SEG_D_REGNUM 11
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#define SEG_E_REGNUM 12
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#define SEG_T_REGNUM 13
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#define SEG_C 18 /* Segment registers */
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#define SEG_D 19
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#define SEG_E 20
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#define SEG_T 21
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#define NUM_REGS 22
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#define NUM_REGS 14
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#define PTR_SIZE (minimum_mode ? 2: 4)
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#define PTR_MASK (minimum_mode ? 0x0000ffff : 0x00ffffff)
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@ -229,6 +220,14 @@ struct type *register_virtual_type();
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LOCALS1 <-SP POINTS HERE
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*/
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CORE_ADDR h8500_frame_chain PARAMS ((FRAME thisframe));
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#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \
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(fci)->frame |= read_register(SEG_T_REGNUM) << 16;
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#define FRAME_CHAIN(FRAME) h8500_frame_chain(FRAME)
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#define FRAME_SAVED_PC(FRAME) frame_saved_pc(FRAME)
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#define FRAME_ARGS_ADDRESS(fi) frame_args_address(fi)
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@ -287,7 +286,17 @@ typedef unsigned short INSN_WORD;
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#define PRINT_REGISTER_HOOK(regno) print_register_hook(regno)
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int minimum_mode;
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#define CALL_DUMMY_LENGTH 10
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/* Fake variables to make it easy to use 24 bit register pointers */
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int h8500_is_trapped_internalvar PARAMS ((char *name));
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#define IS_TRAPPED_INTERNALVAR h8500_is_trapped_internalvar
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PTR h8500_value_of_trapped_internalvar PARAMS ((struct internalvar *var));
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#define VALUE_OF_TRAPPED_INTERNALVAR h8500_value_of_trapped_internalvar
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void h8500_set_trapped_internalvar PARAMS ((struct internalvar *var, value newval, int bitpos, int bitsize, int offset));
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#define SET_TRAPPED_INTERNALVAR h8500_set_trapped_internalvar
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