X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fm68k-tdep.h;h=1567505abf8aa464e6d90588e65a9473156b50a5;hb=f6044a4be7f6f04e96f145ba045608e75e1e852b;hp=a81cc8cf86ad836be877d0fad4e78958d8d95db3;hpb=8de307e0c2449f3cfeecab1cbd149f5322e84eba;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/m68k-tdep.h b/gdb/m68k-tdep.h
index a81cc8cf86..1567505abf 100644
--- a/gdb/m68k-tdep.h
+++ b/gdb/m68k-tdep.h
@@ -1,12 +1,12 @@
-/* Common target dependent code for the Motorola 68000 series.
-   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, 2003
-   Free Software Foundation, Inc.
+/* Target-dependent code for the Motorola 68000 series.
+
+   Copyright (C) 1990-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,53 +15,58 @@
    GNU General Public License for more details.
 
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef M68K_TDEP_H
 #define M68K_TDEP_H
 
 struct frame_info;
 
-/* Register numbers of various important registers.
-   Note that some of these values are "real" register numbers,
-   and correspond to the general registers of the machine,
-   and some are "phony" register numbers which are too large
-   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.  */
+/* Register numbers of various important registers.  */
 
-enum
+enum m68k_regnum
 {
   M68K_D0_REGNUM = 0,
   M68K_D1_REGNUM = 1,
+  M68K_D2_REGNUM = 2,
+  M68K_D7_REGNUM = 7,
   M68K_A0_REGNUM = 8,
   M68K_A1_REGNUM = 9,
-  M68K_FP_REGNUM = 14,		/* Contains address of executing stack frame */
-  M68K_SP_REGNUM = 15,		/* Contains address of top of stack */
-  M68K_PS_REGNUM = 16,		/* Contains processor status */
-  M68K_PC_REGNUM = 17,		/* Contains program counter */
-  M68K_FP0_REGNUM = 18,		/* Floating point register 0 */
-  M68K_FPC_REGNUM = 26,		/* 68881 control register */
-  M68K_FPS_REGNUM = 27,		/* 68881 status register */
+  M68K_A2_REGNUM = 10,
+  M68K_FP_REGNUM = 14,		/* Address of executing stack frame.  */
+  M68K_SP_REGNUM = 15,		/* Address of top of stack.  */
+  M68K_PS_REGNUM = 16,		/* Processor status.  */
+  M68K_PC_REGNUM = 17,		/* Program counter.  */
+  M68K_FP0_REGNUM = 18,		/* Floating point register 0.  */
+  M68K_FPC_REGNUM = 26,		/* 68881 control register.  */
+  M68K_FPS_REGNUM = 27,		/* 68881 status register.  */
   M68K_FPI_REGNUM = 28
 };
 
-#define M68K_NUM_REGS (M68K_FPI_REGNUM + 1)
+/* Number of machine registers.  */
+#define M68K_NUM_REGS	(M68K_FPI_REGNUM + 1)
 
 /* Size of the largest register.  */
 #define M68K_MAX_REGISTER_SIZE	12
 
-struct m68k_sigtramp_info
-{
-  /* Address of sigcontext.  */
-  CORE_ADDR sigcontext_addr;
+/* Convention for returning structures.  */
 
-  /* Offset of registers in `struct sigcontext'.  */
-  int *sc_reg_offset;
+enum struct_return
+{
+  pcc_struct_return,		/* Return "short" structures in memory.  */
+  reg_struct_return		/* Return "short" structures in registers.  */
 };
 
+/* Particular flavour of m68k.  */
+enum m68k_flavour
+  {
+    m68k_no_flavour,
+    m68k_coldfire_flavour,
+    m68k_fido_flavour
+  };
+
 /* Target-dependent structure in gdbarch.  */
+
 struct gdbarch_tdep
 {
   /* Offset to PC value in the jump buffer.  If this is negative,
@@ -70,8 +75,34 @@ struct gdbarch_tdep
   /* The size of each entry in the jump buffer.  */
   size_t jb_elt_size;
 
-  /* Get info about sigtramp.  */
-  struct m68k_sigtramp_info (*get_sigtramp_info) (struct frame_info *);
+  /* Register in which the address to store a structure value is
+     passed to a function.  */
+  int struct_value_regnum;
+
+  /* Convention for returning structures.  */
+  enum struct_return struct_return;
+
+  /* Convention for returning floats.  zero in int regs, non-zero in float.  */
+  int float_return;
+
+  /* The particular flavour of m68k.  */
+  enum m68k_flavour flavour;
+
+  /* Flag set if the floating point registers are present, or assumed
+     to be present.  */
+  int fpregs_present;
+
+   /* ISA-specific data types.  */
+  struct type *m68k_ps_type;
+  struct type *m68881_ext_type;
 };
 
-#endif /* M68K_TDEP_H */
+/* Initialize a SVR4 architecture variant.  */
+extern void m68k_svr4_init_abi (struct gdbarch_info, struct gdbarch *);
+
+
+/* Functions exported from m68k-bsd-tdep.c.  */
+
+extern int m68kbsd_fpreg_offset (struct gdbarch *gdbarch, int regnum);
+
+#endif /* m68k-tdep.h */