* gdbarch.sh: Document the return_value method. Explain that

[deliverable/binutils-gdb.git] / gdb / mips-tdep.h

diff --git a/gdb/mips-tdep.h b/gdb/mips-tdep.h
index 92202e2d7b5f8e6aaf7ca2cba29a5c57d9024362..3917951f8431b62e0ef2a84cffb4d4c2fcc24d57 100644 (file)
--- a/gdb/mips-tdep.h
+++ b/gdb/mips-tdep.h
@@ -1,12 +1,12 @@
 /* Target-dependent header for the MIPS architecture, for GDB, the GNU Debugger.
 
-   Copyright 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2007, 2008 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,
@@ -15,13 +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 MIPS_TDEP_H
 #define MIPS_TDEP_H
 
+struct gdbarch;
+
 /* All the possible MIPS ABIs. */
 enum mips_abi
   {
@@ -38,4 +38,73 @@ enum mips_abi
 /* Return the MIPS ABI associated with GDBARCH.  */
 enum mips_abi mips_abi (struct gdbarch *gdbarch);
 
+/* Return the MIPS ISA's register size.  Just a short cut to the BFD
+   architecture's word size.  */
+extern int mips_isa_regsize (struct gdbarch *gdbarch);
+
+/* Return the current index for various MIPS registers.  */
+struct mips_regnum
+{
+  int pc;
+  int fp0;
+  int fp_implementation_revision;
+  int fp_control_status;
+  int badvaddr;                /* Bad vaddr for addressing exception.  */
+  int cause;           /* Describes last exception.  */
+  int hi;              /* Multiply/divide temp.  */
+  int lo;              /* ...  */
+};
+extern const struct mips_regnum *mips_regnum (struct gdbarch *gdbarch);
+
+/* Register numbers of various important registers.  */
+
+enum
+{
+  MIPS_ZERO_REGNUM = 0,                /* Read-only register, always 0.  */
+  MIPS_AT_REGNUM = 1,
+  MIPS_V0_REGNUM = 2,          /* Function integer return value.  */
+  MIPS_A0_REGNUM = 4,          /* Loc of first arg during a subr call */
+  MIPS_T9_REGNUM = 25,         /* Contains address of callee in PIC.  */
+  MIPS_SP_REGNUM = 29,
+  MIPS_RA_REGNUM = 31,
+  MIPS_PS_REGNUM = 32,         /* Contains processor status.  */
+  MIPS_EMBED_LO_REGNUM = 33,
+  MIPS_EMBED_HI_REGNUM = 34,
+  MIPS_EMBED_BADVADDR_REGNUM = 35,
+  MIPS_EMBED_CAUSE_REGNUM = 36,
+  MIPS_EMBED_PC_REGNUM = 37,
+  MIPS_EMBED_FP0_REGNUM = 38,
+  MIPS_UNUSED_REGNUM = 73,     /* Never used, FIXME */
+  MIPS_FIRST_EMBED_REGNUM = 74,        /* First CP0 register for embedded use.  */
+  MIPS_PRID_REGNUM = 89,       /* Processor ID.  */
+  MIPS_LAST_EMBED_REGNUM = 89  /* Last one.  */
+};
+
+/* Defined in mips-tdep.c and used in remote-mips.c */
+extern void deprecated_mips_set_processor_regs_hack (void);
+
+/* Instruction sizes and other useful constants.  */
+enum
+{
+  MIPS_INSN16_SIZE = 2,
+  MIPS_INSN32_SIZE = 4,
+  /* The number of floating-point or integer registers.  */
+  MIPS_NUMREGS = 32
+};
+
+/* Single step based on where the current instruction will take us.  */
+extern int mips_software_single_step (struct frame_info *frame);
+
+/* Tell if the program counter value in MEMADDR is in a MIPS16
+   function.  */
+extern int mips_pc_is_mips16 (bfd_vma memaddr);
+
+/* Return the currently configured (or set) saved register size. */
+extern unsigned int mips_abi_regsize (struct gdbarch *gdbarch);
+
+/* Target descriptions which only indicate the size of general
+   registers.  */
+extern struct target_desc *mips_tdesc_gp32;
+extern struct target_desc *mips_tdesc_gp64;
+
 #endif /* MIPS_TDEP_H */