* config/m68k/tm-m68k.h (REGISTER_BYTE, REGISTER_RAW_SIZE)
(REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE) (REGISTER_VIRTUAL_TYPE, REGISTER_NAMES, TARGET_LONG_DOUBLE_FORMAT) (FUNCTION_START_OFFSET, SKIP_PROLOGUE, SAVED_PC_AFTER_CALL) (INNER_THAN, STACK_ALIGN, REGISTER_SIZE): Remove macros. * m68k-tdep.c: Include arch-utils.h (m68k_register_raw_size): Add. (m68k_register_virtual_size): Add. (m68k_register_virtual_type): Add. (m68k_register_name): Add. (m68k_stack_align): Add. (m68k_register_byte): Add. (m68k_gdbarch_init): Add set_gdbarch calls for macros removed in tm-m68k.h.
This commit is contained in:
Grace Sainsbury
parent
a2c6a6d597
commit
5d3ed2e315
@ -1,9 +1,27 @@
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2002-06-21 Grace Sainsbury <graces@redhat.com>
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* config/m68k/tm-m68k.h (REGISTER_BYTE, REGISTER_RAW_SIZE)
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(REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE)
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(REGISTER_VIRTUAL_TYPE, REGISTER_NAMES, TARGET_LONG_DOUBLE_FORMAT)
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(FUNCTION_START_OFFSET, SKIP_PROLOGUE, SAVED_PC_AFTER_CALL)
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(INNER_THAN, STACK_ALIGN, REGISTER_SIZE): Remove macros.
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* m68k-tdep.c: Include arch-utils.h
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(m68k_register_raw_size): Add.
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(m68k_register_virtual_size): Add.
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(m68k_register_virtual_type): Add.
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(m68k_register_name): Add.
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(m68k_stack_align): Add.
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(m68k_register_byte): Add.
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(m68k_gdbarch_init): Add set_gdbarch calls for macros removed in
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tm-m68k.h.
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2002-06-21 Grace Sainsbury <graces@redhat.com>
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* m68k-tdep.c (m68k_frame_init_saved_regs): Replace
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m68k_find_saved_regs.
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(m68k_pop_frame): Removed saved_regs structure, and replaced
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references to it with frasme->saved_regs.
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references to it with frame->saved_regs.
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(m68k_gdbarch_init): Added function calls to initialize the
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gdbarch structure.
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(m68k_fix_call_dummy): Add.
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@ -25,6 +25,7 @@
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/* Generic 68000 stuff, to be included by other tm-*.h files. */
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#if !GDB_MULTI_ARCH
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#define TARGET_LONG_DOUBLE_FORMAT &floatformat_m68881_ext
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#define TARGET_LONG_DOUBLE_BIT 96
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@ -40,8 +41,10 @@
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#if !defined(SKIP_PROLOGUE)
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#define SKIP_PROLOGUE(ip) (m68k_skip_prologue (ip))
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#endif
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#endif
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extern CORE_ADDR m68k_skip_prologue (CORE_ADDR ip);
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/* Immediately after a function call, return the saved pc.
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Can't always go through the frames for this because on some machines
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the new frame is not set up until the new function executes
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@ -49,18 +52,22 @@ extern CORE_ADDR m68k_skip_prologue (CORE_ADDR ip);
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struct frame_info;
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#if !GDB_MULTI_ARCH
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extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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#define SAVED_PC_AFTER_CALL(frame) \
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m68k_saved_pc_after_call(frame)
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#endif
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/* Stack grows downward. */
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#if !GDB_MULTI_ARCH
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#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
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/* Stack must be kept short aligned when doing function calls. */
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#define STACK_ALIGN(ADDR) (((ADDR) + 1) & ~1)
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#endif
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/* Sequence of bytes for breakpoint instruction.
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This is a TRAP instruction. The last 4 bits (0xf below) is the
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@ -96,7 +103,9 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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used in push_word and a few other places; REGISTER_RAW_SIZE is the
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real way to know how big a register is. */
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#if !GDB_MULTI_ARCH
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#define REGISTER_SIZE 4
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#endif
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#define REGISTER_BYTES_FP (16*4 + 8 + 8*12 + 3*4)
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#define REGISTER_BYTES_NOFP (16*4 + 8)
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@ -120,17 +129,19 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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/* Index within `registers' of the first byte of the space for
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register N. */
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#if !GDB_MULTI_ARCH
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#define REGISTER_BYTE(N) \
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((N) >= FPC_REGNUM ? (((N) - FPC_REGNUM) * 4) + 168 \
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: (N) >= FP0_REGNUM ? (((N) - FP0_REGNUM) * 12) + 72 \
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: (N) * 4)
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#endif
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/* Number of bytes of storage in the actual machine representation
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for register N. On the 68000, all regs are 4 bytes
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except the floating point regs which are 12 bytes. */
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/* Note that the unsigned cast here forces the result of the
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subtraction to very high positive values if N < FP0_REGNUM */
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#if !GDB_MULTI_ARCH
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#define REGISTER_RAW_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 8 ? 12 : 4)
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/* Number of bytes of storage in the program's representation
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@ -146,29 +157,31 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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/* Largest value REGISTER_VIRTUAL_SIZE can have. */
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#define MAX_REGISTER_VIRTUAL_SIZE 12
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#endif
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/* Return the GDB type object for the "standard" data type of data
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in register N. This should be int for D0-D7, long double for FP0-FP7,
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and void pointer for all others (A0-A7, PC, SR, FPCONTROL etc).
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Note, for registers which contain addresses return pointer to void,
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not pointer to char, because we don't want to attempt to print
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the string after printing the address. */
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#if !GDB_MULTI_ARCH
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#define REGISTER_VIRTUAL_TYPE(N) \
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((unsigned) (N) >= FPC_REGNUM ? lookup_pointer_type (builtin_type_void) : \
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(unsigned) (N) >= FP0_REGNUM ? builtin_type_long_double : \
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(unsigned) (N) >= A0_REGNUM ? lookup_pointer_type (builtin_type_void) : \
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builtin_type_int)
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#endif
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/* Initializer for an array of names of registers.
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Entries beyond the first NUM_REGS are ignored. */
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#if !GDB_MULTI_ARCH
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#define REGISTER_NAMES \
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{"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \
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"a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \
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"ps", "pc", \
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"fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", \
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"fpcontrol", "fpstatus", "fpiaddr", "fpcode", "fpflags" }
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#endif
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/* Register numbers of various important registers.
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Note that some of these values are "real" register numbers,
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@ -189,6 +202,7 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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#define FPS_REGNUM 27 /* 68881 status register */
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#define FPI_REGNUM 28 /* 68881 iaddr register */
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/* Store the address of the place in which to copy the structure the
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subroutine will return. This is called from call_function. */
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108
gdb/m68k-tdep.c
108
gdb/m68k-tdep.c
@ -27,6 +27,7 @@
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#include "gdb_string.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "arch-utils.h"
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#define P_LINKL_FP 0x480e
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@ -43,6 +44,92 @@
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void m68k_frame_init_saved_regs (struct frame_info *frame_info);
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/* Number of bytes of storage in the actual machine representation
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for register regnum. On the 68000, all regs are 4 bytes
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except the floating point regs which are 12 bytes. */
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/* Note that the unsigned cast here forces the result of the
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subtraction to very high positive values if regnum < FP0_REGNUM */
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static int
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m68k_register_raw_size (int regnum)
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{
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return (((unsigned) (regnum) - FP0_REGNUM) < 8 ? 12 : 4);
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}
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/* Number of bytes of storage in the program's representation
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for register regnum. On the 68000, all regs are 4 bytes
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except the floating point regs which are 12-byte long doubles. */
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static int
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m68k_register_virtual_size (int regnum)
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{
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return (((unsigned) (regnum) - FP0_REGNUM) < 8 ? 12 : 4);
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}
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/* Return the GDB type object for the "standard" data type of data
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in register N. This should be int for D0-D7, long double for FP0-FP7,
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and void pointer for all others (A0-A7, PC, SR, FPCONTROL etc).
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Note, for registers which contain addresses return pointer to void,
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not pointer to char, because we don't want to attempt to print
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the string after printing the address. */
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static struct type *
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m68k_register_virtual_type (int regnum)
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{
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if ((unsigned) regnum >= FPC_REGNUM)
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return lookup_pointer_type (builtin_type_void);
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else if ((unsigned) regnum >= FP0_REGNUM)
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return builtin_type_long_double;
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else if ((unsigned) regnum >= A0_REGNUM)
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return lookup_pointer_type (builtin_type_void);
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else
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return builtin_type_int;
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}
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/* Function: m68k_register_name
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Returns the name of the standard m68k register regnum. */
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static const char *
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m68k_register_name (int regnum)
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{
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static char *register_names[] = {
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"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
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"a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp",
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"ps", "pc",
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"fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7",
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"fpcontrol", "fpstatus", "fpiaddr", "fpcode", "fpflags"
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};
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if (regnum < 0 ||
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regnum >= sizeof (register_names) / sizeof (register_names[0]))
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internal_error (__FILE__, __LINE__,
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"m68k_register_name: illegal register number %d", regnum);
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else
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return register_names[regnum];
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}
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/* Stack must be kept short aligned when doing function calls. */
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static CORE_ADDR
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m68k_stack_align (CORE_ADDR addr)
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{
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return ((addr + 1) & ~1);
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}
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/* Index within `registers' of the first byte of the space for
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register regnum. */
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static int
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m68k_register_byte (int regnum)
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{
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if (regnum >= FPC_REGNUM)
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return (((regnum - FPC_REGNUM) * 4) + 168);
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else if (regnum >= FP0_REGNUM)
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return (((regnum - FP0_REGNUM) * 12) + 72);
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else
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return (regnum * 4);
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}
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/* The only reason this is here is the tm-altos.h reference below. It
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was moved back here from tm-m68k.h. FIXME? */
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@ -731,6 +818,27 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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gdbarch = gdbarch_alloc (&info, 0);
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set_gdbarch_long_double_format (gdbarch, &floatformat_m68881_ext);
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set_gdbarch_long_double_bit (gdbarch, 96);
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set_gdbarch_function_start_offset (gdbarch, 0);
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set_gdbarch_skip_prologue (gdbarch, m68k_skip_prologue);
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set_gdbarch_saved_pc_after_call (gdbarch, m68k_saved_pc_after_call);
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/* Stack grows down. */
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set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
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set_gdbarch_stack_align (gdbarch, m68k_stack_align);
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set_gdbarch_register_raw_size (gdbarch, m68k_register_raw_size);
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set_gdbarch_register_virtual_size (gdbarch, m68k_register_virtual_size);
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set_gdbarch_max_register_raw_size (gdbarch, 12);
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set_gdbarch_max_register_virtual_size (gdbarch, 12);
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set_gdbarch_register_virtual_type (gdbarch, m68k_register_virtual_type);
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set_gdbarch_register_name (gdbarch, m68k_register_name);
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set_gdbarch_register_size (gdbarch, 4);
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set_gdbarch_register_byte (gdbarch, m68k_register_byte);
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set_gdbarch_frame_init_saved_regs (gdbarch, m68k_frame_init_saved_regs);
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set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
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