1 /* Target-dependent header for the MIPS architecture, for GDB, the GNU Debugger.
3 Copyright (C) 2002, 2003, 2007, 2008 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 /* All the possible MIPS ABIs. */
38 /* Return the MIPS ABI associated with GDBARCH. */
39 enum mips_abi
mips_abi (struct gdbarch
*gdbarch
);
41 /* Return the MIPS ISA's register size. Just a short cut to the BFD
42 architecture's word size. */
43 extern int mips_isa_regsize (struct gdbarch
*gdbarch
);
45 /* Return the current index for various MIPS registers. */
50 int fp_implementation_revision
;
51 int fp_control_status
;
52 int badvaddr
; /* Bad vaddr for addressing exception. */
53 int cause
; /* Describes last exception. */
54 int hi
; /* Multiply/divide temp. */
57 extern const struct mips_regnum
*mips_regnum (struct gdbarch
*gdbarch
);
59 /* Register numbers of various important registers. */
63 MIPS_ZERO_REGNUM
= 0, /* Read-only register, always 0. */
65 MIPS_V0_REGNUM
= 2, /* Function integer return value. */
66 MIPS_A0_REGNUM
= 4, /* Loc of first arg during a subr call */
67 MIPS_T9_REGNUM
= 25, /* Contains address of callee in PIC. */
70 MIPS_PS_REGNUM
= 32, /* Contains processor status. */
71 MIPS_EMBED_LO_REGNUM
= 33,
72 MIPS_EMBED_HI_REGNUM
= 34,
73 MIPS_EMBED_BADVADDR_REGNUM
= 35,
74 MIPS_EMBED_CAUSE_REGNUM
= 36,
75 MIPS_EMBED_PC_REGNUM
= 37,
76 MIPS_EMBED_FP0_REGNUM
= 38,
77 MIPS_UNUSED_REGNUM
= 73, /* Never used, FIXME */
78 MIPS_FIRST_EMBED_REGNUM
= 74, /* First CP0 register for embedded use. */
79 MIPS_PRID_REGNUM
= 89, /* Processor ID. */
80 MIPS_LAST_EMBED_REGNUM
= 89 /* Last one. */
83 /* Defined in mips-tdep.c and used in remote-mips.c */
84 extern void deprecated_mips_set_processor_regs_hack (void);
86 /* Instruction sizes and other useful constants. */
91 /* The number of floating-point or integer registers. */
95 /* Single step based on where the current instruction will take us. */
96 extern int mips_software_single_step (struct frame_info
*frame
);
98 /* Tell if the program counter value in MEMADDR is in a MIPS16
100 extern int mips_pc_is_mips16 (bfd_vma memaddr
);
102 /* Return the currently configured (or set) saved register size. */
103 extern unsigned int mips_abi_regsize (struct gdbarch
*gdbarch
);
105 /* Target descriptions which only indicate the size of general
107 extern struct target_desc
*mips_tdesc_gp32
;
108 extern struct target_desc
*mips_tdesc_gp64
;
110 #endif /* MIPS_TDEP_H */