diff options
Diffstat (limited to 'gdb/config/d10v/tm-d10v.h')
| -rw-r--r-- | gdb/config/d10v/tm-d10v.h | 81 |
1 files changed, 51 insertions, 30 deletions
diff --git a/gdb/config/d10v/tm-d10v.h b/gdb/config/d10v/tm-d10v.h index eb508e2..3b1cffe 100644 --- a/gdb/config/d10v/tm-d10v.h +++ b/gdb/config/d10v/tm-d10v.h @@ -19,15 +19,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* 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. */ @@ -40,21 +37,12 @@ extern CORE_ADDR d10v_skip_prologue (); #define SKIP_PROLOGUE(ip) \ {(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 @@ -127,13 +115,6 @@ extern CORE_ADDR d10v_skip_prologue (); #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 into appropriate registers a function return value of type TYPE, given in virtual format. @@ -157,6 +138,7 @@ extern CORE_ADDR d10v_skip_prologue (); #define EXTRA_FRAME_INFO \ CORE_ADDR return_pc; \ + int dummy; \ int size; #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ @@ -195,25 +177,65 @@ extern CORE_ADDR d10v_skip_prologue (); d10v_frame_find_saved_regs(frame_info, &(frame_saved_regs)) #define NAMES_HAVE_UNDERSCORE + +/* +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 call the function directly. +When it hits the breakpoint, clear the break point and pop the old register contents +off the stack. +*/ + +#define CALL_DUMMY { } +#define PUSH_DUMMY_FRAME +#define CALL_DUMMY_START_OFFSET 0 +#define CALL_DUMMY_LOCATION AT_ENTRY_POINT +#define CALL_DUMMY_BREAKPOINT_OFFSET (0) + +extern CORE_ADDR d10v_call_dummy_address PARAMS ((void)); +#define CALL_DUMMY_ADDRESS() d10v_call_dummy_address() + +#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ +d10v_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p) + +#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \ + ((pc>>2) >= CALL_DUMMY_ADDRESS () \ + && (pc>>2) <= (CALL_DUMMY_ADDRESS () + DECR_PC_AFTER_BREAK)) + +#ifdef __STDC__ /* Forward decls for prototypes */ +struct type; +struct value; +#endif +extern void d10v_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR, + int, struct value **, + struct type *, int)); +#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)); -typedef unsigned short INSN_WORD; -#define ADDR_BITS_REMOVE(addr) ((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) \ +d10v_extract_return_value(TYPE, REGBUF, VALBUF) + extern void +d10v_extract_return_value PARAMS ((struct type *, char *, char *)); -#define CALL_DUMMY_LENGTH 10 /* Discard from the stack the innermost frame, restoring all saved registers. */ - #define POP_FRAME d10v_pop_frame(); #define REGISTER_SIZE 2 -# ifdef CC_HAS_LONG_LONG -# define LONGEST long long -# else -# define LONGEST long -# endif +#ifdef CC_HAS_LONG_LONG +# define LONGEST long long +#else +# define LONGEST long +#endif void d10v_write_register_pid PARAMS (( int regno, LONGEST val, int pid)); CORE_ADDR d10v_read_register_pid PARAMS ((int regno, int pid)); @@ -221,7 +243,6 @@ 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) - /* Number of bits in the appropriate type */ #define TARGET_INT_BIT (2 * TARGET_CHAR_BIT) #define TARGET_PTR_BIT (2 * TARGET_CHAR_BIT) |