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* config/m68k/tm-m68k.h: Rearrange code so macros not in the
gdbarch vector are at the top. (NUM_REGS): Remove. (FP_REGNUM, SP_REGNUM, PS_REGNUM, PC_REGNUM, FP0_REGNUM): Remove. (FRAME_ARGS_ADDRESS): Remove. (FRAME_LOCALS_ADDRESS): Remove. (FRAME_NUM_ARGS): Remove. (FRAME_ARGS_SKIP): Remove. * m68k-tdep.c (enum): Add eumeration of special register numbers. (m68k_gdbarch_init): Add gdbarch initializations for macros undefined in tm-m68k.h
This commit is contained in:
Grace Sainsbury
parent
4791e09145
commit
6300c360ea
@ -22,6 +22,20 @@
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(s390_frame_chain): Ditto.
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* cris-tdep.c (cris_frame_init_saved_regs): Ditto.
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2002-06-26 Grace Sainsbury <graces@redhat.com>
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* config/m68k/tm-m68k.h: Rearrange code so macros not in the
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gdbarch vector are at the top.
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(NUM_REGS): Remove.
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(FP_REGNUM, SP_REGNUM, PS_REGNUM, PC_REGNUM, FP0_REGNUM): Remove.
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(FRAME_ARGS_ADDRESS): Remove.
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(FRAME_LOCALS_ADDRESS): Remove.
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(FRAME_NUM_ARGS): Remove.
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(FRAME_ARGS_SKIP): Remove.
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* m68k-tdep.c (enum): Add eumeration of special register numbers.
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(m68k_gdbarch_init): Add gdbarch initializations for macros
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undefined in tm-m68k.h
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2002-06-26 Grace Sainsbury <graces@redhat.com>
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* monitor.h: Add the function regname to monitor_ops
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@ -25,6 +25,53 @@
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/* Generic 68000 stuff, to be included by other tm-*.h files. */
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struct frame_info;
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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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vector. Systems which don't use 0xf should define BPT_VECTOR
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themselves before including this file. */
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#if !defined (BPT_VECTOR)
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#define BPT_VECTOR 0xf
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#endif
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#if !defined (BREAKPOINT)
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#define BREAKPOINT {0x4e, (0x40 | BPT_VECTOR)}
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#endif
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/* We default to vector 1 for the "remote" target, but allow targets
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to override. */
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#if !defined (REMOTE_BPT_VECTOR)
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#define REMOTE_BPT_VECTOR 1
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#endif
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#if !defined (REMOTE_BREAKPOINT)
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#define REMOTE_BREAKPOINT {0x4e, (0x40 | REMOTE_BPT_VECTOR)}
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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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#define NUM_FREGS (NUM_REGS-24)
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/* This was determined by experimentation on hp300 BSD 4.3. Perhaps
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it corresponds to some offset in /usr/include/sys/user.h or
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something like that. Using some system include file would
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have the advantage of probably being more robust in the face
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of OS upgrades, but the disadvantage of being wrong for
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cross-debugging. */
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#define SIG_PC_FP_OFFSET 530
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/* Offset from SP to first arg on stack at first instruction of a function */
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#define SP_ARG0 (1 * 4)
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#define TARGET_M68K
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#if !GDB_MULTI_ARCH
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#define TARGET_LONG_DOUBLE_FORMAT &floatformat_m68881_ext
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@ -50,8 +97,6 @@ extern CORE_ADDR m68k_skip_prologue (CORE_ADDR ip);
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the new frame is not set up until the new function executes
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some instructions. */
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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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@ -69,29 +114,6 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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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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vector. Systems which don't use 0xf should define BPT_VECTOR
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themselves before including this file. */
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#if !defined (BPT_VECTOR)
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#define BPT_VECTOR 0xf
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#endif
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#if !defined (BREAKPOINT)
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#define BREAKPOINT {0x4e, (0x40 | BPT_VECTOR)}
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#endif
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/* We default to vector 1 for the "remote" target, but allow targets
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to override. */
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#if !defined (REMOTE_BPT_VECTOR)
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#define REMOTE_BPT_VECTOR 1
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#endif
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#if !defined (REMOTE_BREAKPOINT)
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#define REMOTE_BREAKPOINT {0x4e, (0x40 | REMOTE_BPT_VECTOR)}
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#endif
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/* If your kernel resets the pc after the trap happens you may need to
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define this before including this file. */
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@ -101,6 +123,12 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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#endif
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#endif
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#if !GDB_MULTI_ARCH
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#ifndef NUM_REGS
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#define NUM_REGS 29
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#endif
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#endif
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/* Say how long (ordinary) registers are. This is a piece of bogosity
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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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@ -109,17 +137,6 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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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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#ifndef NUM_REGS
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#define NUM_REGS 29
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#endif
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#define NUM_FREGS (NUM_REGS-24)
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#if !GDB_MULTI_ARCH
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#ifndef REGISTER_BYTES_OK
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#define REGISTER_BYTES_OK(b) \
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@ -197,14 +214,17 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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to be actual register numbers as far as the user is concerned
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but do serve to get the desired values when passed to read_register. */
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#define D0_REGNUM 0
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#define A0_REGNUM 8
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#define A1_REGNUM 9
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#if !GDB_MULTI_ARCH
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#define FP_REGNUM 14 /* Contains address of executing stack frame */
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#define SP_REGNUM 15 /* Contains address of top of stack */
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#define PS_REGNUM 16 /* Contains processor status */
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#define PC_REGNUM 17 /* Contains program counter */
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#define FP0_REGNUM 18 /* Floating point register 0 */
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#endif
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#define FPC_REGNUM 26 /* 68881 control register */
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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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@ -277,14 +297,7 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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(((FI)->signal_handler_caller) ? 0 : frameless_look_for_prologue(FI))
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#endif
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/* This was determined by experimentation on hp300 BSD 4.3. Perhaps
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it corresponds to some offset in /usr/include/sys/user.h or
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something like that. Using some system include file would
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have the advantage of probably being more robust in the face
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of OS upgrades, but the disadvantage of being wrong for
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cross-debugging. */
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#define SIG_PC_FP_OFFSET 530
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#if !GDB_MULTI_ARCH
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#define FRAME_SAVED_PC(FRAME) \
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@ -298,22 +311,27 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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)
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#endif
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#if !GDB_MULTI_ARCH
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#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
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#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
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#endif
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/* Set VAL to the number of args passed to frame described by FI.
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Can set VAL to -1, meaning no way to tell. */
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/* We can't tell how many args there are
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now that the C compiler delays popping them. */
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#if !GDB_MULTI_ARCH
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#if !defined (FRAME_NUM_ARGS)
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#define FRAME_NUM_ARGS(fi) (-1)
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#endif
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/* Return number of bytes at start of arglist that are not really args. */
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#define FRAME_ARGS_SKIP 8
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#endif
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/* Put here the code to store, into a struct frame_saved_regs,
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the addresses of the saved registers of frame described by FRAME_INFO.
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@ -385,12 +403,7 @@ extern void m68k_pop_frame (void);
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/* Discard from the stack the innermost frame, restoring all registers. */
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#define POP_FRAME { m68k_pop_frame (); }
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#endif
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/* Offset from SP to first arg on stack at first instruction of a function */
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#define SP_ARG0 (1 * 4)
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#define TARGET_M68K
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/* Figure out where the longjmp will land. Slurp the args out of the stack.
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We expect the first arg to be a pointer to the jmp_buf structure from which
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@ -398,3 +411,4 @@ extern void m68k_pop_frame (void);
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This routine returns true on success */
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extern int m68k_get_longjmp_target (CORE_ADDR *);
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#endif
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@ -42,6 +42,15 @@
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#define P_FMOVM 0xf237
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#define P_TRAP 0x4e40
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enum
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{
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E_FP_REGNUM = 14, /* Contains address of executing stack frame */
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E_SP_REGNUM = 15, /* Contains address of top of stack */
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E_PS_REGNUM = 16, /* Contains processor status */
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E_PC_REGNUM = 17, /* Contains program counter */
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E_FP0_REGNUM = 18 /* Floating point register 0 */
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};
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void m68k_frame_init_saved_regs (struct frame_info *frame_info);
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static int
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@ -917,7 +926,7 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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#if 0
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tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
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#endif
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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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@ -932,6 +941,8 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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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_believe_pcc_promotion (gdbarch, 1);
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set_gdbarch_decr_pc_after_break (gdbarch, 2);
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set_gdbarch_store_struct_return (gdbarch, m68k_store_struct_return);
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@ -940,10 +951,16 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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set_gdbarch_store_return_value (gdbarch, m68k_store_return_value);
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set_gdbarch_frame_chain (gdbarch, m68k_frame_chain);
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set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
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set_gdbarch_frame_saved_pc (gdbarch, m68k_frame_saved_pc);
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set_gdbarch_frame_init_saved_regs (gdbarch, m68k_frame_init_saved_regs);
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set_gdbarch_frameless_function_invocation (gdbarch,
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m68k_frameless_function_invocation);
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/* OK to default this value to 'unknown'. */
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set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
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set_gdbarch_frame_args_skip (gdbarch, 8);
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set_gdbarch_frame_args_address (gdbarch, default_frame_address);
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set_gdbarch_frame_locals_address (gdbarch, default_frame_address);
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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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@ -956,6 +973,11 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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set_gdbarch_num_regs (gdbarch, 29);
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set_gdbarch_register_bytes_ok (gdbarch, m68k_register_bytes_ok);
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set_gdbarch_register_bytes (gdbarch, (16 * 4 + 8 + 8 * 12 + 3 * 4));
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set_gdbarch_sp_regnum (gdbarch, E_SP_REGNUM);
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set_gdbarch_fp_regnum (gdbarch, E_FP_REGNUM);
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set_gdbarch_pc_regnum (gdbarch, E_PC_REGNUM);
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set_gdbarch_ps_regnum (gdbarch, E_PS_REGNUM);
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set_gdbarch_fp0_regnum (gdbarch, E_FP0_REGNUM);
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set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
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set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
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