diff options
Diffstat (limited to 'gdb/config/sh/tm-sh.h')
| -rw-r--r-- | gdb/config/sh/tm-sh.h | 319 |
1 files changed, 49 insertions, 270 deletions
diff --git a/gdb/config/sh/tm-sh.h b/gdb/config/sh/tm-sh.h index bb03f53..d7438fe 100644 --- a/gdb/config/sh/tm-sh.h +++ b/gdb/config/sh/tm-sh.h @@ -20,274 +20,53 @@ /* Contributed by Steve Chamberlain sac@cygnus.com */ -struct frame_info; -struct frame_saved_regs; -struct value; -struct type; +#define GDB_MULTI_ARCH 1 + +/* Information that is dependent on the processor variant. */ +struct gdbarch_tdep + { + int FPUL_REGNUM; /* sh3e, sh4 */ + int FPSCR_REGNUM; /* sh3e, sh4 */ + int DSR_REGNUM; /* sh-dsp, sh3-dsp */ + int FP15_REGNUM; /* sh3e, sh4 */ + int A0G_REGNUM; /* sh-dsp, sh3-dsp */ + int A0_REGNUM; /* sh-dsp, sh3-dsp */ + int A1G_REGNUM; /* sh-dsp, sh3-dsp */ + int A1_REGNUM; /* sh-dsp, sh3-dsp */ + int M0_REGNUM; /* sh-dsp, sh3-dsp */ + int M1_REGNUM; /* sh-dsp, sh3-dsp */ + int X0_REGNUM; /* sh-dsp, sh3-dsp */ + int X1_REGNUM; /* sh-dsp, sh3-dsp */ + int Y0_REGNUM; /* sh-dsp, sh3-dsp */ + int Y1_REGNUM; /* sh-dsp, sh3-dsp */ + int MOD_REGNUM; /* sh-dsp, sh3-dsp */ + int SSR_REGNUM; /* sh3, sh3-dsp, sh3e, sh4 */ + int SPC_REGNUM; /* sh3, sh3-dsp, sh3e, sh4 */ + int RS_REGNUM; /* sh-dsp, sh3-dsp */ + int RE_REGNUM; /* sh-dsp, sh3-dsp */ + }; + +/* Registers common to all the SH variants. */ +enum + { + R0_REGNUM = 0, + STRUCT_RETURN_REGNUM = 2, + ARG0_REGNUM = 4, + ARGLAST_REGNUM = 7, + PR_REGNUM = 17, + GBR_REGNUM = 18, + VBR_REGNUM = 19, + MACH_REGNUM = 20, + MACL_REGNUM = 21, + SR_REGNUM = 22 + }; + +#define NUM_REALREGS 59 /* used in remote-e7000.c which is not multiarched. */ + +#define REGISTER_TYPE long /* used in standalone.c */ + +#define BIG_REMOTE_BREAKPOINT { 0xc3, 0x20 } /* Used in remote.c */ +#define LITTLE_REMOTE_BREAKPOINT { 0x20, 0xc3 } /* Used in remote.c */ + +/*#define NOP {0x20, 0x0b}*/ /* Who uses this???*/ -#define GDB_TARGET_IS_SH - -#define IEEE_FLOAT (1) - -/* Define the bit, byte, and word ordering of the machine. */ - -#define TARGET_BYTE_ORDER_SELECTABLE - - -/* 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 sh_skip_prologue (CORE_ADDR); -#define SKIP_PROLOGUE(ip) (sh_skip_prologue (ip)) - -/* 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. - - The return address is the value saved in the PR register + 4 */ - -#define SAVED_PC_AFTER_CALL(frame) (ADDR_BITS_REMOVE(read_register(PR_REGNUM))) - -/* Stack grows downward. */ - -#define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) - -/* Illegal instruction - used by the simulator for breakpoint - detection */ - -#define BREAKPOINT {0xc3, 0xc3} /* 0xc3c3 is trapa #c3, and it works in big - and little endian modes */ - -#define BIG_REMOTE_BREAKPOINT { 0xc3, 0x20 } -#define LITTLE_REMOTE_BREAKPOINT { 0x20, 0xc3 } - -/* If your kernel resets the pc after the trap happens you may need to - define this before including this file. */ -#define DECR_PC_AFTER_BREAK 0 - -/* Say how long registers are. */ -#define REGISTER_TYPE long - -/* Say how much memory is needed to store a copy of the register set */ -#define REGISTER_BYTES (NUM_REGS*4) - -/* Index within `registers' of the first byte of the space for - register N. */ - -#define REGISTER_BYTE(N) ((N)*4) - -/* Number of bytes of storage in the actual machine representation - for register N. */ - -#define REGISTER_RAW_SIZE(N) 4 - -#define REGISTER_VIRTUAL_SIZE(N) 4 - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE 4 - -/* Largest value REGISTER_VIRTUAL_SIZE can have. */ - -#define MAX_REGISTER_VIRTUAL_SIZE 4 - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -#define REGISTER_VIRTUAL_TYPE(N) \ - (((((N) >= FP0_REGNUM && (N) <= FP15_REGNUM) \ - || (N) == FPUL_REGNUM) \ - && TARGET_ARCHITECTURE->mach != bfd_mach_sh_dsp \ - && TARGET_ARCHITECTURE->mach != bfd_mach_sh3_dsp) \ - ? builtin_type_float : builtin_type_int) - -/* Initializer for an array of names of registers. - Entries beyond the first NUM_REGS are ignored. */ - -extern char **sh_register_names; -#define REGISTER_NAME(i) sh_register_names[i] - -#define NUM_REGS 59 - -/* 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 R0_REGNUM 0 -#define STRUCT_RETURN_REGNUM 2 -#define ARG0_REGNUM 4 -#define ARGLAST_REGNUM 7 -#define FP_REGNUM 14 -#define SP_REGNUM 15 -#define PC_REGNUM 16 -#define PR_REGNUM 17 -#define GBR_REGNUM 18 -#define VBR_REGNUM 19 -#define MACH_REGNUM 20 -#define MACL_REGNUM 21 -#define SR_REGNUM 22 -#define FPUL_REGNUM 23 -#define FPSCR_REGNUM 24 -#define DSR_REGNUM 24 -#define FP0_REGNUM 25 -#define FP15_REGNUM 40 -#define A0G_REGNUM 25 -#define A0_REGNUM 26 -#define A1G_REGNUM 27 -#define A1_REGNUM 28 -#define M0_REGNUM 29 -#define M1_REGNUM 30 -#define X0_REGNUM 31 -#define X1_REGNUM 32 -#define Y0_REGNUM 33 -#define Y1_REGNUM 34 -#define MOD_REGNUM 40 -#define SSR_REGNUM 41 -#define SPC_REGNUM 42 -#define R0B0_REGNUM 43 -#define R0B1_REGNUM 51 -#define RS_REGNUM 43 -#define RE_REGNUM 44 -#define R0B_REGNUM 51 - -#define NUM_REALREGS 59 - -/* Store the address of the place in which to copy the structure the - subroutine will return. This is called from call_function. - - We store structs through a pointer passed in R0 */ - -#define STORE_STRUCT_RETURN(ADDR, SP) \ - { write_register (STRUCT_RETURN_REGNUM, (ADDR)); } - -extern use_struct_convention_fn sh_use_struct_convention; -#define USE_STRUCT_CONVENTION(gcc_p, type) sh_use_struct_convention (gcc_p, type) - -/* 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. */ - -extern void sh_extract_return_value (struct type *, void *, void *); -#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - sh_extract_return_value (TYPE, REGBUF, VALBUF) - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format. */ - -extern void sh_store_return_value (struct type *, void *); -#define STORE_RETURN_VALUE(TYPE,VALBUF) \ - sh_store_return_value (TYPE, VALBUF) - -/* 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_RAW_SIZE (0)) - - -/* Define other aspects of the stack frame. - we keep a copy of the worked out return pc lying around, since it - is a useful bit of info */ - -#define EXTRA_FRAME_INFO \ - CORE_ADDR return_pc; \ - int leaf_function; \ - int f_offset; - -#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ - sh_init_extra_frame_info(fromleaf, fi) -extern void sh_init_extra_frame_info (int, struct frame_info *); - -/* 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_look_for_prologue(FI)) - -#define FRAME_SAVED_PC(FRAME) ((FRAME)->return_pc) -#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) -#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) - -/* Set VAL to the number of args passed to frame described by FI. - Can set VAL to -1, meaning no way to tell. */ - -/* We can't tell how many args there are */ - -#define FRAME_NUM_ARGS(fi) (-1) - -/* Return number of bytes at start of arglist that are not really args. */ - -#define FRAME_ARGS_SKIP 0 - -extern void sh_frame_find_saved_regs (struct frame_info *fi, - struct frame_saved_regs *fsr); - -/* 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(frame_info, frame_saved_regs) \ - sh_frame_find_saved_regs(frame_info, &(frame_saved_regs)) - -typedef unsigned short INSN_WORD; - -extern CORE_ADDR sh_push_arguments (int nargs, - struct value **args, - CORE_ADDR sp, - unsigned char struct_return, - CORE_ADDR struct_addr); - -#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(DUMMY, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP) -#define CALL_DUMMY_LOCATION AT_ENTRY_POINT -#define CALL_DUMMY_ADDRESS() entry_point_address () -extern CORE_ADDR sh_push_return_address (CORE_ADDR, CORE_ADDR); -#define PUSH_RETURN_ADDRESS(PC, SP) sh_push_return_address (PC, SP) - - -extern CORE_ADDR sh_frame_chain (struct frame_info *); -#define FRAME_CHAIN(FRAME) sh_frame_chain(FRAME) -#define PUSH_DUMMY_FRAME generic_push_dummy_frame () -#define FRAME_CHAIN_VALID(FP, FRAME) generic_file_frame_chain_valid (FP, FRAME) -#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP) -#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ - (sh_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)) - -/* 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) - -/* Discard from the stack the innermost frame, restoring all saved - registers. */ - -extern void sh_pop_frame (void); -#define POP_FRAME sh_pop_frame(); - -#define NOP {0x20, 0x0b} - -#define REGISTER_SIZE 4 - -#define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1) - -#define BELIEVE_PCC_PROMOTION 1 - -/* Need this for WinGDB. See gdb/mswin/{regdoc.h, gdbwin.c, gui.cpp}. */ -#define TARGET_SH |