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* m68k-tdep.c (m68k_remote_breakpoint_from_pc): Add. Currently not
used in architecture vector. The default is m68k_local_breakpoint_from_pc. (m68k_local_breakpoint_from_pc): Add. (enum): Add register numbers from tm-m68k.h. (m68k_gdbarch_init): Add breakpoint_from_pc to architecture vector. * config/m68k/tm-m68k.h (GDB_MULTI_ARCH): Set to GDB_MULTI_ARCH_PARTIAL. (BPT_VECTOR, REGISTER_BYTES_FP, REGISTER_BYTES_NOFP) (NUM_FREGS, SIG_PC_FP_OFFSET, SP_ARG0, REMOTE_BPT_VECTOR): Move to m68k-tdep.c. (BREAKPOINT, REMOTE_BREAKPOINT): Remove. (A1_REGNUM, FP0_REGNUM, FPC_REGNUM, FPS_REGNUM, FPI_REGNUM): Move to enum in m68k-tdep.c
This commit is contained in:
Grace Sainsbury
parent
7a5a05349e
commit
103a159751
@ -1,3 +1,21 @@
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2002-07-02 Grace Sainsbury <graces@redhat.com>
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* m68k-tdep.c (m68k_remote_breakpoint_from_pc): Add. Currently not
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used in architecture vector. The default is
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m68k_local_breakpoint_from_pc.
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(m68k_local_breakpoint_from_pc): Add.
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(enum): Add register numbers from tm-m68k.h.
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(m68k_gdbarch_init): Add breakpoint_from_pc to architecture
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vector.
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* config/m68k/tm-m68k.h (GDB_MULTI_ARCH): Set to
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GDB_MULTI_ARCH_PARTIAL.
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(BPT_VECTOR, REGISTER_BYTES_FP, REGISTER_BYTES_NOFP)
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(NUM_FREGS, SIG_PC_FP_OFFSET, SP_ARG0, REMOTE_BPT_VECTOR): Move to
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m68k-tdep.c.
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(BREAKPOINT, REMOTE_BREAKPOINT): Remove.
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(A1_REGNUM, FP0_REGNUM, FPC_REGNUM, FPS_REGNUM, FPI_REGNUM): Move
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to enum in m68k-tdep.c
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2002-07-02 Joel Brobecker <brobecker@gnat.com>
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* solib-osf.c (open_map): Compute the list of shared libraries
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@ -21,17 +21,24 @@
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#include "regcache.h"
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#define GDB_MULTI_ARCH 0
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#define GDB_MULTI_ARCH GDB_MULTI_ARCH_PARTIAL
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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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/* struct frame_info; */
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/* D0_REGNM and A0_REGNUM must be defined here because they are
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used by the monitor. */
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#define D0_REGNUM 0
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#define A0_REGNUM 8
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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 !GDB_MULTI_ARCH
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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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@ -45,17 +52,22 @@ struct frame_info;
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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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#endif
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#if !GDB_MULTI_ARCH
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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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#endif
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#if !GDB_MULTI_ARCH
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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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@ -70,7 +82,7 @@ struct frame_info;
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#define SP_ARG0 (1 * 4)
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#define TARGET_M68K
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#endif
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#if !GDB_MULTI_ARCH
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#define TARGET_LONG_DOUBLE_FORMAT &floatformat_m68881_ext
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@ -147,7 +159,7 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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#ifndef REGISTER_BYTES
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#define REGISTER_BYTES (16*4 + 8 + 8*12 + 3*4)
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#endif
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#endif //multi-arch
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#endif /* multi-arch */
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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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@ -180,7 +192,7 @@ 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 //multi-arch
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#endif /* multi-arch */
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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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@ -214,21 +226,18 @@ 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 A1_REGNUM 9
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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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#endif
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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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@ -248,7 +257,7 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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(TYPE_LENGTH(TYPE) >= 4 ? 0 : 4 - TYPE_LENGTH(TYPE)), \
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TYPE_LENGTH(TYPE))
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#endif
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#endif //multi-arch
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#endif /* multi-arch */
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/* Write into appropriate registers a function return value
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of type TYPE, given in virtual format. Assumes floats are passed
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@ -265,7 +274,7 @@ extern CORE_ADDR m68k_saved_pc_after_call (struct frame_info *);
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as a CORE_ADDR (or an expression that can be used as one). */
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#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(CORE_ADDR *)(REGBUF))
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#endif //multi-arch
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#endif /* multi-arch */
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/* Describe the pointer in each stack frame to the previous stack frame
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(its caller). */
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@ -42,17 +42,83 @@
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#define P_FMOVM 0xf237
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#define P_TRAP 0x4e40
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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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and correspond to the general registers of the machine,
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and some are "phony" register numbers which are too large
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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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/* Note: Since they are used in files other than this (monitor files),
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D0_REGNUM and A0_REGNUM are currently defined in tm-m68k.h. */
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enum
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{
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E_A1_REGNUM = 9,
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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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E_FP0_REGNUM = 18, /* Floating point register 0 */
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E_FPC_REGNUM = 26, /* 68881 control register */
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E_FPS_REGNUM = 27, /* 68881 status register */
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E_FPI_REGNUM = 28
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};
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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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/* 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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/* 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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#define TARGET_M68K
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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 (REMOTE_BPT_VECTOR)
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#define REMOTE_BPT_VECTOR 1
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#endif
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void m68k_frame_init_saved_regs (struct frame_info *frame_info);
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/* gdbarch_breakpoint_from_pc is set to m68k_local_breakpoint_from_pc
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so m68k_remote_breakpoint_from_pc is currently not used. */
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const static unsigned char *
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m68k_remote_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
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{
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static unsigned char break_insn[] = {0x4e, (0x40 | REMOTE_BPT_VECTOR)};
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*lenptr = sizeof (break_insn);
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return break_insn;
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}
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const static unsigned char *
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m68k_local_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
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{
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static unsigned char break_insn[] = {0x4e, (0x40 | BPT_VECTOR)};
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*lenptr = sizeof (break_insn);
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return break_insn;
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}
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static int
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m68k_register_bytes_ok (numbytes)
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{
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@ -92,7 +158,7 @@ m68k_register_virtual_size (int regnum)
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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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if ((unsigned) regnum >= E_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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@ -138,8 +204,8 @@ m68k_stack_align (CORE_ADDR addr)
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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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if (regnum >= E_FPC_REGNUM)
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return (((regnum - E_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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@ -152,7 +218,7 @@ m68k_register_byte (int regnum)
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static void
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m68k_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
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{
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write_register (A1_REGNUM, addr);
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write_register (E_A1_REGNUM, addr);
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}
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/* Extract from an array regbuf containing the (raw) register state
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@ -795,14 +861,14 @@ supply_fpregset (fpregset_t *fpregsetp)
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register int regi;
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char *from;
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for (regi = FP0_REGNUM; regi < FPC_REGNUM; regi++)
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for (regi = FP0_REGNUM; regi < E_FPC_REGNUM; regi++)
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{
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from = (char *) &(fpregsetp->f_fpregs[regi - FP0_REGNUM][0]);
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supply_register (regi, from);
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}
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supply_register (FPC_REGNUM, (char *) &(fpregsetp->f_pcr));
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supply_register (FPS_REGNUM, (char *) &(fpregsetp->f_psr));
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supply_register (FPI_REGNUM, (char *) &(fpregsetp->f_fpiaddr));
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supply_register (E_FPC_REGNUM, (char *) &(fpregsetp->f_pcr));
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supply_register (E_FPS_REGNUM, (char *) &(fpregsetp->f_psr));
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supply_register (E_FPI_REGNUM, (char *) &(fpregsetp->f_fpiaddr));
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}
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/* Given a pointer to a floating point register set in /proc format
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@ -817,7 +883,7 @@ fill_fpregset (fpregset_t *fpregsetp, int regno)
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char *to;
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char *from;
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for (regi = FP0_REGNUM; regi < FPC_REGNUM; regi++)
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for (regi = FP0_REGNUM; regi < E_FPC_REGNUM; regi++)
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{
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if ((regno == -1) || (regno == regi))
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{
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@ -826,17 +892,17 @@ fill_fpregset (fpregset_t *fpregsetp, int regno)
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memcpy (to, from, REGISTER_RAW_SIZE (regi));
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}
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}
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if ((regno == -1) || (regno == FPC_REGNUM))
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if ((regno == -1) || (regno == E_FPC_REGNUM))
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{
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fpregsetp->f_pcr = *(int *) ®isters[REGISTER_BYTE (FPC_REGNUM)];
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fpregsetp->f_pcr = *(int *) ®isters[REGISTER_BYTE (E_FPC_REGNUM)];
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}
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if ((regno == -1) || (regno == FPS_REGNUM))
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if ((regno == -1) || (regno == E_FPS_REGNUM))
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{
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fpregsetp->f_psr = *(int *) ®isters[REGISTER_BYTE (FPS_REGNUM)];
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fpregsetp->f_psr = *(int *) ®isters[REGISTER_BYTE (E_FPS_REGNUM)];
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}
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if ((regno == -1) || (regno == FPI_REGNUM))
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if ((regno == -1) || (regno == E_FPI_REGNUM))
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{
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fpregsetp->f_fpiaddr = *(int *) ®isters[REGISTER_BYTE (FPI_REGNUM)];
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fpregsetp->f_fpiaddr = *(int *) ®isters[REGISTER_BYTE (E_FPI_REGNUM)];
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}
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}
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@ -936,6 +1002,7 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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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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set_gdbarch_breakpoint_from_pc (gdbarch, m68k_local_breakpoint_from_pc);
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/* Stack grows down. */
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set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
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