diff options
Diffstat (limited to 'gdb/config/i386/tm-sun386.h')
| -rw-r--r-- | gdb/config/i386/tm-sun386.h | 182 |
1 files changed, 41 insertions, 141 deletions
diff --git a/gdb/config/i386/tm-sun386.h b/gdb/config/i386/tm-sun386.h index 4199446..259fd51 100644 --- a/gdb/config/i386/tm-sun386.h +++ b/gdb/config/i386/tm-sun386.h @@ -17,7 +17,10 @@ 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. */ -#define TARGET_BYTE_ORDER LITTLE_ENDIAN +#if !defined (TM_SUN386_H) +#define TM_SUN386_H 1 + +#include "i386/tm-i386.h" #ifndef sun386 #define sun386 @@ -38,66 +41,21 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* sun386 ptrace seems unable to change the frame pointer */ #define PTRACE_FP_BUG -/* 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. */ - -#define SKIP_PROLOGUE(frompc) {(frompc) = i386_skip_prologue((frompc));} - -extern int -i386_skip_prologue PARAMS ((int)); - -/* 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) \ - (read_memory_integer (read_register (SP_REGNUM), 4)) - /* Address of end of stack space. */ #define STACK_END_ADDR 0xfc000000 -/* Stack grows downward. */ - -#define INNER_THAN < - -/* Sequence of bytes for breakpoint instruction. */ - -#define BREAKPOINT {0xcc} - -/* 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 1 - -/* Nonzero if instruction at PC is a return instruction. */ - -#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0xc3) - -/* 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 */ +#undef NUM_REGS #define NUM_REGS 35 -/* Initializer for an array of names of registers. - There should be NUM_REGS strings in this initializer. */ +/* Initializer for an array of names of registers. There should be NUM_REGS + strings in this initializer. The order of the first 8 registers must match + the compiler's numbering scheme (which is the same as the 386 scheme) also, + this table must match regmap in i386-pinsn.c. */ -/* the order of the first 8 registers must match the compiler's - * numbering scheme (which is the same as the 386 scheme) - * also, this table must match regmap in i386-pinsn.c. - */ +#undef REGISTER_NAMES #define REGISTER_NAMES { "gs", "fs", "es", "ds", \ "edi", "esi", "ebp", "esp", \ "ebx", "edx", "ecx", "eax", \ @@ -116,20 +74,29 @@ i386_skip_prologue PARAMS ((int)); 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 FP_REGNUM 6 /* Contains address of executing stack frame */ -#define SP_REGNUM 18 /* Contains address of top of stack */ -#define PS_REGNUM 17 /* Contains processor status */ -#define PC_REGNUM 15 /* Contains program counter */ -#define FP0_REGNUM 20 /* Floating point register 0 */ -#define FPC_REGNUM 28 /* 80387 control register */ +#undef FP_REGNUM +#define FP_REGNUM 6 /* (ebp) Contains address of executing stack frame */ +#undef SP_REGNUM +#define SP_REGNUM 18 /* (usp) Contains address of top of stack */ +#undef PS_REGNUM +#define PS_REGNUM 17 /* (ps) Contains processor status */ +#undef PC_REGNUM +#define PC_REGNUM 15 /* (eip) Contains program counter */ +#undef FP0_REGNUM +#define FP0_REGNUM 20 /* Floating point register 0 */ +#undef FPC_REGNUM +#define FPC_REGNUM 28 /* 80387 control register */ /* Total amount of space needed to store our copies of the machine's register state, the array `registers'. */ + +#undef REGISTER_BYTES #define REGISTER_BYTES (20*4+8*10+7*4) /* Index within `registers' of the first byte of the space for register N. */ +#undef REGISTER_BYTE #define REGISTER_BYTE(N) \ ((N) >= FPC_REGNUM ? (((N) - FPC_REGNUM) * 4) + 160 \ : (N) >= FP0_REGNUM ? (((N) - FP0_REGNUM) * 10) + 80 \ @@ -138,29 +105,25 @@ i386_skip_prologue PARAMS ((int)); /* Number of bytes of storage in the actual machine representation for register N. */ +#undef REGISTER_RAW_SIZE #define REGISTER_RAW_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 10 : 4) /* Number of bytes of storage in the program's representation for register N. */ +#undef REGISTER_VIRTUAL_SIZE #define REGISTER_VIRTUAL_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 8 : 4) -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE 10 - -/* 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. */ +#undef REGISTER_CONVERTIBLE #define REGISTER_CONVERTIBLE(N) (((unsigned)((N) - FP0_REGNUM)) < 8) /* Convert data from raw format for register REGNUM in buffer FROM to virtual format with type TYPE in buffer TO. */ +#undef REGISTER_CONVERT_TO_VIRTUAL #define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ { \ double val; \ @@ -173,6 +136,7 @@ i387_to_double PARAMS ((char *, char *)); /* Convert data from virtual format with type TYPE in buffer FROM to raw format for register REGNUM in buffer TO. */ +#undef REGISTER_CONVERT_TO_RAW #define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ { \ double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \ @@ -184,41 +148,32 @@ double_to_i387 PARAMS ((char *, char *)); /* Return the GDB type object for the "standard" data type of data in register N. */ +#undef REGISTER_VIRTUAL_TYPE #define REGISTER_VIRTUAL_TYPE(N) \ (((unsigned)((N) - FP0_REGNUM)) < 8 ? builtin_type_double : builtin_type_int) -/* 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) \ - { (SP) -= sizeof (ADDR); \ - write_memory ((SP), &(ADDR), sizeof (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. */ +#undef EXTRACT_RETURN_VALUE #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ memcpy (VALBUF, REGBUF + REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), TYPE_LENGTH (TYPE)) /* Write into appropriate registers a function return value of type TYPE, given in virtual format. */ +#undef STORE_RETURN_VALUE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), 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)) - /* 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. */ +#undef FRAME_CHAIN #define FRAME_CHAIN(thisframe) \ (!inside_entry_file ((thisframe)->pc) ? \ read_memory_integer ((thisframe)->frame, 4) :\ @@ -229,77 +184,22 @@ double_to_i387 PARAMS ((char *, char *)); /* 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. */ + +#undef FRAMELESS_FUNCTION_INVOCATION #define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \ { (FRAMELESS) = frameless_look_for_prologue (FI); } +#undef FRAME_SAVED_PC #define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4)) -#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) = i386_frame_num_args(fi) - -#ifdef __STDC__ /* Forward decl's for prototypes */ -struct frame_info; -struct frame_saved_regs; -#endif - -extern int -i386_frame_num_args PARAMS ((struct frame_info *)); - -/* Return number of bytes at start of arglist that are not really args. */ - -#define FRAME_ARGS_SKIP 8 - -/* 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) \ -{ i386_frame_find_saved_regs ((frame_info), &(frame_saved_regs)); } - -extern void -i386_frame_find_saved_regs PARAMS ((struct frame_info *, - struct frame_saved_regs *)); - - -/* Things needed for making the inferior call functions. */ - -/* Push an empty stack frame, to record the current PC, etc. */ - -#define PUSH_DUMMY_FRAME { i386_push_dummy_frame (); } - -extern void -i386_push_dummy_frame PARAMS ((void)); - -/* Discard from the stack the innermost frame, restoring all registers. */ - -#define POP_FRAME { i386_pop_frame (); } - -extern void -i386_pop_frame PARAMS ((void)); - -/* this is - * call 11223344 (32 bit relative) - * int3 - */ - -#define CALL_DUMMY { 0x223344e8, 0xcc11 } - -#define CALL_DUMMY_LENGTH 8 - -#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */ - /* Insert the specified number of args and function address into a call sequence of the above form stored at DUMMYNAME. */ +#undef FIX_CALL_DUMMY #define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ { \ *(int *)((char *)(dummyname) + 1) = (int)(fun) - (pc) - 5; \ } + +#endif /* !defined (TM_SUN386_H) */ + |