/* Contributed by Martin Hunt, hunt@cygnus.com */
-
#define GDB_TARGET_IS_D10V
-
/* Define the bit, byte, and word ordering of the machine. */
#define TARGET_BYTE_ORDER BIG_ENDIAN
-
/* Offset from address of function to start of its code.
Zero on most machines. */
#define FUNCTION_START_OFFSET 0
+/* these are the addresses the D10V-EVA board maps data */
+/* and instruction memory to. */
+
+#define DMEM_START 0x0000000
+#define IMEM_START 0x1000000
+#define STACK_START 0x0007ffe
+
+#ifdef __STDC__ /* Forward decls for prototypes */
+struct frame_info;
+struct frame_saved_regs;
+struct type;
+struct value;
+#endif
+
/* Advance PC across any function entry prologue instructions
to reach some "real" code. */
{(ip) = d10v_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) (read_register(LR_REGNUM) << 2 )
-
/* Stack grows downward. */
-
#define INNER_THAN <
- /* for a breakpoint, use "dbt || nop" */
+/* for a breakpoint, use "dbt || nop" */
#define BREAKPOINT {0x2f, 0x90, 0x5e, 0x00}
/* If your kernel resets the pc after the trap happens you may need to
"r8", "r9", "r10","r11","r12", "r13", "r14","sp",\
"psw","bpsw","pc","bpc", "cr4", "cr5", "cr6", "rpt_c",\
"rpt_s","rpt_e", "mod_s", "mod_e", "cr12", "cr13", "iba", "cr15",\
- "a0", "a1"\
+ "imap0","imap1","dmap","a0", "a1"\
}
-#define NUM_REGS 34
+#define NUM_REGS 37
/* Register numbers of various important registers.
Note that some of these values are "real" register numbers,
#define FP_REGNUM 11
#define PC_REGNUM 18
#define PSW_REGNUM 16
-#define A0_REGNUM 32
+#define IMAP0_REGNUM 32
+#define IMAP1_REGNUM 33
+#define DMAP_REGNUM 34
+#define A0_REGNUM 35
/* Say how much memory is needed to store a copy of the register set */
#define REGISTER_BYTES ((NUM_REGS-2)*2+16)
/* Number of bytes of storage in the program's representation
for register N. */
-#define REGISTER_VIRTUAL_SIZE(N) ( ((N) >= A0_REGNUM) ? 8 : 2 )
+#define REGISTER_VIRTUAL_SIZE(N) ( ((N) >= A0_REGNUM) ? 8 : ( ((N) == PC_REGNUM || (N) == SP_REGNUM) ? 4 : 2 ))
/* Largest value REGISTER_RAW_SIZE can have. */
of data in register N. */
#define REGISTER_VIRTUAL_TYPE(N) \
-( ((N) < A0_REGNUM ) ? builtin_type_short : builtin_type_long_long)
-
+( ((N) < A0_REGNUM ) ? ((N) == PC_REGNUM || (N) == SP_REGNUM ? builtin_type_long : builtin_type_short) : builtin_type_long_long)
+
+
+/* convert $pc and $sp to/from virtual addresses */
+#define REGISTER_CONVERTIBLE(N) ((N) == PC_REGNUM || (N) == SP_REGNUM)
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
+{ \
+ ULONGEST x = extract_unsigned_integer ((FROM), REGISTER_RAW_SIZE (REGNUM)); \
+ if (REGNUM == PC_REGNUM) x = (x << 2) | IMEM_START; \
+ else x |= DMEM_START; \
+ store_unsigned_integer ((TO), TYPE_LENGTH(TYPE), x); \
+}
+#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
+{ \
+ ULONGEST x = extract_unsigned_integer ((FROM), TYPE_LENGTH(TYPE)); \
+ x &= 0x3ffff; \
+ if (REGNUM == PC_REGNUM) x >>= 2; \
+ store_unsigned_integer ((TO), 2, x); \
+}
+
+#define D10V_MAKE_DADDR(x) ((x) | DMEM_START)
+#define D10V_MAKE_IADDR(x) (((x) << 2) | IMEM_START)
+
+#define D10V_DADDR_P(X) (((X) & 0x3000000) == DMEM_START)
+#define D10V_IADDR_P(X) (((X) & 0x3000000) == IMEM_START)
+
+#define D10V_CONVERT_IADDR_TO_RAW(X) (((X) >> 2) & 0xffff)
+#define D10V_CONVERT_DADDR_TO_RAW(X) ((X) & 0xffff)
+
+#define ARG1_REGNUM R0_REGNUM
+#define ARGN_REGNUM 3
+#define RET1_REGNUM R0_REGNUM
/* 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 R2 */
+ We store structs through a pointer passed in the first Argument
+ register. */
#define STORE_STRUCT_RETURN(ADDR, SP) \
- { write_register (2, (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) \
- memcpy (VALBUF, (char *)(REGBUF), TYPE_LENGTH(TYPE))
+ { write_register (ARG1_REGNUM, (ADDR)); }
/* Write into appropriate registers a function return value
of type TYPE, given in virtual format.
- Things always get returned in R2/R3 */
+ Things always get returned in RET1_REGNUM, RET2_REGNUM, ... */
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
- write_register_bytes (REGISTER_BYTE(2), VALBUF, TYPE_LENGTH (TYPE))
+ write_register_bytes (REGISTER_BYTE(RET1_REGNUM), 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) (*(CORE_ADDR *)(REGBUF))
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+ (extract_address ((REGBUF) + REGISTER_BYTE (ARG1_REGNUM), REGISTER_RAW_SIZE (ARG1_REGNUM)) | DMEM_START)
\f
/* Define other aspects of the stack frame.
#define EXTRA_FRAME_INFO \
CORE_ADDR return_pc; \
+ int frameless; \
int size;
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
d10v_init_extra_frame_info(fromleaf, fi)
+extern void d10v_init_extra_frame_info PARAMS (( int fromleaf, struct frame_info *fi ));
+
/* 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. */
(FRAMELESS) = frameless_look_for_prologue(FI)
#define FRAME_CHAIN(FRAME) d10v_frame_chain(FRAME)
+#define FRAME_CHAIN_VALID(chain,frame) \
+ ((chain) != 0 && (frame) != 0 && (frame)->pc > IMEM_START)
#define FRAME_SAVED_PC(FRAME) ((FRAME)->return_pc)
#define FRAME_ARGS_ADDRESS(fi) (fi)->frame
#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame
+/* Immediately after a function call, return the saved pc. We can't */
+/* use frame->return_pc beause that is determined by reading R13 off the */
+/*stack and that may not be written yet. */
+
+#define SAVED_PC_AFTER_CALL(frame) ((read_register(LR_REGNUM) << 2) | IMEM_START)
+
/* 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)
#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.
This includes special registers such as pc and fp saved in special
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
d10v_frame_find_saved_regs(frame_info, &(frame_saved_regs))
+extern void d10v_frame_find_saved_regs PARAMS ((struct frame_info *, struct frame_saved_regs *));
+
#define NAMES_HAVE_UNDERSCORE
-typedef unsigned short INSN_WORD;
-#define ADDR_BITS_REMOVE(addr) ((addr))
+/* DUMMY FRAMES. Need these to support inferior function calls. They
+ work like this on D10V: First we set a breakpoint at 0 or __start.
+ Then we push all the registers onto the stack. Then put the
+ function arguments in the proper registers and set r13 to our
+ breakpoint address. Finally, the PC is set to the start of the
+ function being called (no JSR/BSR insn). When it hits the
+ breakpoint, clear the break point and pop the old register contents
+ off the stack. */
-#define CALL_DUMMY_LENGTH 10
+extern void d10v_pop_frame PARAMS ((struct frame_info *frame));
+#define POP_FRAME generic_pop_current_frame (d10v_pop_frame)
-/* Discard from the stack the innermost frame,
- restoring all saved registers. */
+#define USE_GENERIC_DUMMY_FRAMES
+#define CALL_DUMMY {0}
+#define CALL_DUMMY_START_OFFSET (0)
+#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
+#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 d10v_push_return_address PARAMS ((CORE_ADDR pc, CORE_ADDR sp));
+#define PUSH_RETURN_ADDRESS(PC, SP) d10v_push_return_address (PC, SP)
-#define POP_FRAME d10v_pop_frame();
+#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
+/* #define PC_IN_CALL_DUMMY(pc, sp, frame_address) ( pc == IMEM_START + 4 ) */
-#define REGISTER_SIZE 2
+#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
+
+/* override the default get_saved_register function with one that
+ takes account of generic CALL_DUMMY frames */
+#define GET_SAVED_REGISTER
+#define get_saved_register generic_get_saved_register
-# ifdef CC_HAS_LONG_LONG
-# define LONGEST long long
-# else
-# define LONGEST long
-# endif
+#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
+ sp = d10v_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))
+extern CORE_ADDR d10v_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
-void d10v_write_register_pid PARAMS (( int regno, LONGEST val, int pid));
-CORE_ADDR d10v_read_register_pid PARAMS ((int regno, int pid));
-#define TARGET_READ_PC(pid) d10v_read_register_pid (PC_REGNUM, pid)
-#define TARGET_WRITE_PC(val,pid) d10v_write_register_pid (PC_REGNUM, val, pid)
+/* 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) \
+d10v_extract_return_value(TYPE, REGBUF, VALBUF)
+ extern void
+d10v_extract_return_value PARAMS ((struct type *, char *, char *));
+
+
+#define REGISTER_SIZE 2
+#ifdef CC_HAS_LONG_LONG
+# define LONGEST long long
+#else
+# define LONGEST long
+#endif
+#define ULONGEST unsigned LONGEST
+
+void d10v_write_pc PARAMS ((CORE_ADDR val, int pid));
+CORE_ADDR d10v_read_pc PARAMS ((int pid));
+void d10v_write_sp PARAMS ((CORE_ADDR val));
+CORE_ADDR d10v_read_sp PARAMS ((void));
+void d10v_write_fp PARAMS ((CORE_ADDR val));
+CORE_ADDR d10v_read_fp PARAMS ((void));
+
+#define TARGET_READ_PC(pid) d10v_read_pc (pid)
+#define TARGET_WRITE_PC(val,pid) d10v_write_pc (val, pid)
+#define TARGET_READ_FP() d10v_read_fp ()
+#define TARGET_WRITE_FP(val) d10v_write_fp (val)
+#define TARGET_READ_SP() d10v_read_sp ()
+#define TARGET_WRITE_SP(val) d10v_write_sp (val)
/* Number of bits in the appropriate type */
#define TARGET_INT_BIT (2 * TARGET_CHAR_BIT)
-#define TARGET_PTR_BIT (2 * TARGET_CHAR_BIT)
+#define TARGET_PTR_BIT (4 * TARGET_CHAR_BIT)
#define TARGET_DOUBLE_BIT (4 * TARGET_CHAR_BIT)
#define TARGET_LONG_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
projects / deliverable / binutils-gdb.git / blobdiff