/* Target-dependent header for the MIPS architecture, for GDB, the GNU Debugger.
- Copyright 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
This file is part of GDB.
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. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#ifndef MIPS_TDEP_H
#define MIPS_TDEP_H
/* Return the MIPS ABI associated with GDBARCH. */
enum mips_abi mips_abi (struct gdbarch *gdbarch);
-/* For wince :-(. */
-extern CORE_ADDR mips_next_pc (CORE_ADDR pc);
-
-/* Return the "MIPS" register size. Just a short cut to the BFD
+/* Return the MIPS ISA's register size. Just a short cut to the BFD
architecture's word size. */
-extern int mips_regsize (struct gdbarch *gdbarch);
+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. 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. */
+
+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 regcache *regcache);
+
+/* 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);
#endif /* MIPS_TDEP_H */