Initial revision

2 files changed, 287 insertions, 0 deletions

diff --git a/gdb/config/sh/sh.mt b/gdb/config/sh/sh.mt
new file mode 100644
index 00000000000..a6604d4f1d3
--- /dev/null
+++ b/gdb/config/sh/sh.mt
@@ -0,0 +1,6 @@
+# Target: Hitachi Super-H with ICE and simulator
+TDEPFILES= sh-tdep.o monitor.o sh3-rom.o remote-e7000.o ser-e7kpc.o dsrec.o
+TM_FILE= tm-sh.h
+
+SIM_OBS = remote-sim.o
+SIM = ../sim/sh/libsim.a
diff --git a/gdb/config/sh/tm-sh.h b/gdb/config/sh/tm-sh.h
new file mode 100644
index 00000000000..21779094f65
--- /dev/null
+++ b/gdb/config/sh/tm-sh.h
@@ -0,0 +1,281 @@
+/* Target-specific definition for a Hitachi Super-H.
+   Copyright (C) 1993 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.  */
+
+/* Contributed by Steve Chamberlain sac@cygnus.com */
+
+#ifdef __STDC__
+struct frame_info;
+struct frame_saved_regs;
+struct value;
+struct type;
+#endif
+
+#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 ();
+#define SKIP_PROLOGUE(ip) \
+    {(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)			\
+	 ? 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 FP0_REGNUM	25
+#define FP15_REGNUM	40
+#define SSR_REGNUM	41
+#define SPC_REGNUM	42
+#define R0B0_REGNUM	43
+#define R0B1_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 PARAMS ((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.  
+
+   Things always get returned in R0/R1 */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+  write_register_bytes (REGISTER_BYTE(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) \
+     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 PARAMS ((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) \
+  (FRAMELESS) = 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(val,fi) (val = -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 PARAMS ((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))
+
+#define NAMES_HAVE_UNDERSCORE
+
+typedef unsigned short INSN_WORD;
+
+extern CORE_ADDR sh_push_arguments PARAMS ((int nargs, 
+					    struct value **args, 
+					    CORE_ADDR sp,
+					    unsigned char struct_return,
+					    CORE_ADDR struct_addr));
+
+#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(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   PARAMS ((CORE_ADDR, CORE_ADDR));
+#define PUSH_RETURN_ADDRESS(PC, SP)  sh_push_return_address (PC, SP)
+
+
+extern CORE_ADDR sh_frame_chain PARAMS ((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_frame_chain_valid (FP, FRAME)
+#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
+#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
+    (SP) = 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
+
+/* Discard from the stack the innermost frame, restoring all saved
+   registers.  */
+
+extern void sh_pop_frame PARAMS ((void));
+#define POP_FRAME sh_pop_frame();
+
+#define NOP   {0x20, 0x0b}
+
+#define REGISTER_SIZE 4
+
+#define COERCE_FLOAT_TO_DOUBLE 1
+
+#define BELIEVE_PCC_PROMOTION 1
+
+/* Need this for WinGDB.  See gdb/mswin/{regdoc.h, gdbwin.c, gui.cpp}.  */
+#define TARGET_SH