X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Fm68k-tdep.h;h=c70a26e8554901fd8a325d3db80029316f69d8b5;hb=1ead4b8ed29a8dfb565eb120d527286c3051adfd;hp=be28d8863912efd590ef76a066b8c1f29faae290;hpb=17e20bce79d64f0856cd38d3e00b56beb6fa7e8c;p=binutils-gdb.git

diff --git a/gdb/m68k-tdep.h b/gdb/m68k-tdep.h
index be28d886391..c70a26e8554 100644
--- a/gdb/m68k-tdep.h
+++ b/gdb/m68k-tdep.h
@@ -1,13 +1,12 @@
 /* Target-dependent code for the Motorola 68000 series.
 
-   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000,
-   2001, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1990-2022 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,
@@ -16,13 +15,13 @@
    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
 
+#include "gdbarch.h"
+
 struct frame_info;
 
 /* Register numbers of various important registers.  */
@@ -31,8 +30,11 @@ 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_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.  */
@@ -57,22 +59,56 @@ enum struct_return
   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
+struct m68k_gdbarch_tdep : gdbarch_tdep
 {
   /* Offset to PC value in the jump buffer.  If this is negative,
      longjmp support will be disabled.  */
-  int jb_pc;
+  int jb_pc = 0;
   /* The size of each entry in the jump buffer.  */
-  size_t jb_elt_size;
+  size_t jb_elt_size = 0;
+
+  /* Register in which the address to store a structure value is
+     passed to a function.  */
+  int struct_value_regnum = 0;
+
+  /* Register in which a pointer value is returned.  In the SVR4 ABI,
+     this is %a0, but in GCC's "embedded" ABI, this is %d0.  */
+  int pointer_result_regnum = 0;
 
   /* Convention for returning structures.  */
-  enum struct_return struct_return;
+  enum struct_return struct_return {};
+
+  /* Convention for returning floats.  zero in int regs, non-zero in float.  */
+  int float_return = 0;
+
+  /* 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 = 0;
+
+   /* ISA-specific data types.  */
+  struct type *m68k_ps_type = nullptr;
+  struct type *m68881_ext_type = nullptr;
 };
 
-/* Functions exported from m68kbsd-tdep.c.  */
+/* 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 (int regnum);
+extern int m68kbsd_fpreg_offset (struct gdbarch *gdbarch, int regnum);
 
 #endif /* m68k-tdep.h */